From 78b9bcd1661168fcd382934e25cd8b35f5b86c55 Mon Sep 17 00:00:00 2001 From: Krystian Kuczek Date: Mon, 19 Oct 2020 11:37:24 +0200 Subject: [PATCH] Sample AES decryption with 48 AVC Closes: #3102 --- dist/config.d.ts | 126 + dist/controller/buffer-controller.d.ts | 105 + dist/controller/eme-controller.d.ts | 123 + dist/controller/fragment-finders.d.ts | 37 + dist/controller/timeline-controller.d.ts | 59 + dist/errors.d.ts | 43 + dist/event-handler.d.ts | 19 + dist/hls-demo.js | 40278 +++++++++++++++++++++ dist/hls-demo.js.map | 1 + dist/hls.d.ts | 284 + dist/hls.js | 21496 +++++++++++ dist/hls.js.map | 1 + dist/hls.light.js | 15740 ++++++++ dist/hls.light.js.map | 1 + dist/hls.light.min.js | 2 + dist/hls.light.min.js.map | 1 + dist/hls.min.js | 2 + dist/hls.min.js.map | 1 + dist/is-supported.d.ts | 1 + dist/loader/fragment.d.ts | 61 + dist/loader/key-loader.d.ts | 22 + dist/loader/level-key.d.ts | 10 + dist/loader/m3u8-parser.d.ts | 13 + dist/loader/playlist-loader.d.ts | 76 + dist/observer.d.ts | 12 + dist/task-loop.d.ts | 73 + dist/types/loader.d.ts | 73 + dist/types/media-playlist.d.ts | 20 + dist/types/segment.d.ts | 6 + dist/types/track.d.ts | 20 + dist/utils/binary-search.d.ts | 20 + dist/utils/buffer-helper.d.ts | 43 + dist/utils/cea-608-parser.d.ts | 225 + dist/utils/codecs.d.ts | 4 + dist/utils/cues.d.ts | 12 + dist/utils/ewma-bandwidth-estimator.d.ts | 14 + dist/utils/ewma.d.ts | 10 + dist/utils/mediakeys-helper.d.ts | 10 + dist/utils/mediasource-helper.d.ts | 4 + dist/utils/output-filter.d.ts | 14 + dist/utils/texttrack-utils.d.ts | 12 + dist/utils/time-ranges.d.ts | 7 + dist/utils/timescale-conversion.d.ts | 4 + package-lock.json | 17 +- package.json | 1 + src/demux/sample-aes.js | 2 +- 46 files changed, 79096 insertions(+), 9 deletions(-) create mode 100644 dist/config.d.ts create mode 100644 dist/controller/buffer-controller.d.ts create mode 100644 dist/controller/eme-controller.d.ts create mode 100644 dist/controller/fragment-finders.d.ts create mode 100644 dist/controller/timeline-controller.d.ts create mode 100644 dist/errors.d.ts create mode 100644 dist/event-handler.d.ts create mode 100644 dist/hls-demo.js create mode 100644 dist/hls-demo.js.map create mode 100644 dist/hls.d.ts create mode 100644 dist/hls.js create mode 100644 dist/hls.js.map create mode 100644 dist/hls.light.js create mode 100644 dist/hls.light.js.map create mode 100644 dist/hls.light.min.js create mode 100644 dist/hls.light.min.js.map create mode 100644 dist/hls.min.js create mode 100644 dist/hls.min.js.map create mode 100644 dist/is-supported.d.ts create mode 100644 dist/loader/fragment.d.ts create mode 100644 dist/loader/key-loader.d.ts create mode 100644 dist/loader/level-key.d.ts create mode 100644 dist/loader/m3u8-parser.d.ts create mode 100644 dist/loader/playlist-loader.d.ts create mode 100644 dist/observer.d.ts create mode 100644 dist/task-loop.d.ts create mode 100644 dist/types/loader.d.ts create mode 100644 dist/types/media-playlist.d.ts create mode 100644 dist/types/segment.d.ts create mode 100644 dist/types/track.d.ts create mode 100644 dist/utils/binary-search.d.ts create mode 100644 dist/utils/buffer-helper.d.ts create mode 100644 dist/utils/cea-608-parser.d.ts create mode 100644 dist/utils/codecs.d.ts create mode 100644 dist/utils/cues.d.ts create mode 100644 dist/utils/ewma-bandwidth-estimator.d.ts create mode 100644 dist/utils/ewma.d.ts create mode 100644 dist/utils/mediakeys-helper.d.ts create mode 100644 dist/utils/mediasource-helper.d.ts create mode 100644 dist/utils/output-filter.d.ts create mode 100644 dist/utils/texttrack-utils.d.ts create mode 100644 dist/utils/time-ranges.d.ts create mode 100644 dist/utils/timescale-conversion.d.ts diff --git a/dist/config.d.ts b/dist/config.d.ts new file mode 100644 index 00000000000..6b4b0e71217 --- /dev/null +++ b/dist/config.d.ts @@ -0,0 +1,126 @@ +/** + * HLS config + */ +import BufferController from './controller/buffer-controller'; +import * as Cues from './utils/cues'; +import EMEController from './controller/eme-controller'; +import { MediaKeyFunc } from './utils/mediakeys-helper'; +declare type ABRControllerConfig = { + abrEwmaFastLive: number; + abrEwmaSlowLive: number; + abrEwmaFastVoD: number; + abrEwmaSlowVoD: number; + abrEwmaDefaultEstimate: number; + abrBandWidthFactor: number; + abrBandWidthUpFactor: number; + abrMaxWithRealBitrate: boolean; + maxStarvationDelay: number; + maxLoadingDelay: number; +}; +export declare type BufferControllerConfig = { + appendErrorMaxRetry: number; + liveDurationInfinity: boolean; + liveBackBufferLength: number; +}; +declare type CapLevelControllerConfig = { + capLevelToPlayerSize: boolean; +}; +export declare type DRMSystemOptions = { + audioRobustness?: string; + videoRobustness?: string; +}; +export declare type EMEControllerConfig = { + licenseXhrSetup?: (xhr: XMLHttpRequest, url: string) => void; + emeEnabled: boolean; + widevineLicenseUrl?: string; + drmSystemOptions: DRMSystemOptions; + requestMediaKeySystemAccessFunc: MediaKeyFunc | null; +}; +declare type FragmentLoaderConfig = { + fLoader: any; + fragLoadingTimeOut: number; + fragLoadingMaxRetry: number; + fragLoadingRetryDelay: number; + fragLoadingMaxRetryTimeout: number; +}; +declare type FPSControllerConfig = { + capLevelOnFPSDrop: boolean; + fpsDroppedMonitoringPeriod: number; + fpsDroppedMonitoringThreshold: number; +}; +declare type LevelControllerConfig = { + startLevel?: number; +}; +declare type MP4RemuxerConfig = { + stretchShortVideoTrack: boolean; + maxAudioFramesDrift: number; +}; +declare type PlaylistLoaderConfig = { + pLoader: any; + manifestLoadingTimeOut: number; + manifestLoadingMaxRetry: number; + manifestLoadingRetryDelay: number; + manifestLoadingMaxRetryTimeout: number; + levelLoadingTimeOut: number; + levelLoadingMaxRetry: number; + levelLoadingRetryDelay: number; + levelLoadingMaxRetryTimeout: number; +}; +declare type StreamControllerConfig = { + autoStartLoad: boolean; + startPosition: number; + defaultAudioCodec?: string; + initialLiveManifestSize: number; + maxBufferLength: number; + maxBufferSize: number; + maxBufferHole: number; + lowBufferWatchdogPeriod: number; + highBufferWatchdogPeriod: number; + nudgeOffset: number; + nudgeMaxRetry: number; + maxFragLookUpTolerance: number; + liveSyncDurationCount: number; + liveMaxLatencyDurationCount: number; + liveSyncDuration?: number; + liveMaxLatencyDuration?: number; + maxMaxBufferLength: number; + startFragPrefetch: boolean; + testBandwidth: boolean; +}; +declare type TimelineControllerConfig = { + cueHandler: Cues.CuesInterface; + enableCEA708Captions: boolean; + enableWebVTT: boolean; + captionsTextTrack1Label: string; + captionsTextTrack1LanguageCode: string; + captionsTextTrack2Label: string; + captionsTextTrack2LanguageCode: string; + captionsTextTrack3Label: string; + captionsTextTrack3LanguageCode: string; + captionsTextTrack4Label: string; + captionsTextTrack4LanguageCode: string; + renderTextTracksNatively: boolean; +}; +declare type TSDemuxerConfig = { + forceKeyFrameOnDiscontinuity: boolean; +}; +export declare type HlsConfig = { + debug: boolean; + enableWorker: boolean; + enableSoftwareAES: boolean; + minAutoBitrate: number; + loader: any; + xhrSetup?: (xhr: XMLHttpRequest, url: string) => void; + audioStreamController?: any; + audioTrackController?: any; + subtitleStreamController?: any; + subtitleTrackController?: any; + timelineController?: any; + emeController?: typeof EMEController; + abrController: any; + bufferController: typeof BufferController; + capLevelController: any; + fpsController: any; +} & ABRControllerConfig & BufferControllerConfig & CapLevelControllerConfig & EMEControllerConfig & FPSControllerConfig & FragmentLoaderConfig & LevelControllerConfig & MP4RemuxerConfig & PlaylistLoaderConfig & StreamControllerConfig & TimelineControllerConfig & TSDemuxerConfig; +export declare const hlsDefaultConfig: HlsConfig; +export {}; diff --git a/dist/controller/buffer-controller.d.ts b/dist/controller/buffer-controller.d.ts new file mode 100644 index 00000000000..e66b7828fdc --- /dev/null +++ b/dist/controller/buffer-controller.d.ts @@ -0,0 +1,105 @@ +import EventHandler from '../event-handler'; +import { TrackSet } from '../types/track'; +import { Segment } from '../types/segment'; +declare type ExtendedSourceBuffer = SourceBuffer & { + ended?: boolean; +}; +declare type SourceBufferName = 'video' | 'audio'; +declare type SourceBuffers = Partial>; +interface SourceBufferFlushRange { + start: number; + end: number; + type: SourceBufferName; +} +declare class BufferController extends EventHandler { + private _msDuration; + private _levelDuration; + private _levelTargetDuration; + private _live; + private _objectUrl; + private _needsFlush; + private _needsEos; + private config; + audioTimestampOffset?: number; + bufferCodecEventsExpected: number; + private _bufferCodecEventsTotal; + media: HTMLMediaElement | null; + mediaSource: MediaSource | null; + segments: Segment[]; + parent?: string; + appending: boolean; + appended: number; + appendError: number; + flushBufferCounter: number; + tracks: TrackSet; + pendingTracks: TrackSet; + sourceBuffer: SourceBuffers; + flushRange: SourceBufferFlushRange[]; + constructor(hls: any); + destroy(): void; + onLevelPtsUpdated(data: { + details: any; + type: SourceBufferName; + start: number; + }): void; + onManifestParsed(data: { + altAudio: boolean; + audio: boolean; + video: boolean; + }): void; + onMediaAttaching(data: { + media: HTMLMediaElement; + }): void; + onMediaDetaching(): void; + checkPendingTracks(): void; + private _onMediaSourceOpen; + private _onMediaSourceClose; + private _onMediaSourceEnded; + private _onSBUpdateEnd; + private _onSBUpdateError; + onBufferReset(): void; + onBufferCodecs(tracks: TrackSet): void; + createSourceBuffers(tracks: TrackSet): void; + onBufferAppending(data: Segment): void; + onBufferEos(data: { + type?: SourceBufferName; + }): void; + checkEos(): void; + onBufferFlushing(data: { + startOffset: number; + endOffset: number; + type?: SourceBufferName; + }): void; + flushLiveBackBuffer(): void; + onLevelUpdated({ details }: { + details: { + totalduration: number; + targetduration?: number; + averagetargetduration?: number; + live: boolean; + fragments: any[]; + }; + }): void; + /** + * Update Media Source duration to current level duration or override to Infinity if configuration parameter + * 'liveDurationInfinity` is set to `true` + * More details: https://github.com/video-dev/hls.js/issues/355 + */ + updateMediaElementDuration(): void; + updateSeekableRange(levelDetails: any): void; + doFlush(): void; + doAppending(): void; + flushBuffer(startOffset: number, endOffset: number, sbType: SourceBufferName): boolean; + /** + * Removes first buffered range from provided source buffer that lies within given start and end offsets. + * + * @param {string} type Type of the source buffer, logging purposes only. + * @param {SourceBuffer} sb Target SourceBuffer instance. + * @param {number} startOffset + * @param {number} endOffset + * + * @returns {boolean} True when source buffer remove requested. + */ + removeBufferRange(type: string, sb: ExtendedSourceBuffer, startOffset: number, endOffset: number): boolean; +} +export default BufferController; diff --git a/dist/controller/eme-controller.d.ts b/dist/controller/eme-controller.d.ts new file mode 100644 index 00000000000..4db6600691c --- /dev/null +++ b/dist/controller/eme-controller.d.ts @@ -0,0 +1,123 @@ +/** + * @author Stephan Hesse | + * + * DRM support for Hls.js + */ +import EventHandler from '../event-handler'; +import { KeySystems, MediaKeyFunc } from '../utils/mediakeys-helper'; +/** + * Controller to deal with encrypted media extensions (EME) + * @see https://developer.mozilla.org/en-US/docs/Web/API/Encrypted_Media_Extensions_API + * + * @class + * @constructor + */ +declare class EMEController extends EventHandler { + private _widevineLicenseUrl?; + private _licenseXhrSetup?; + private _emeEnabled; + private _requestMediaKeySystemAccess; + private _drmSystemOptions; + private _config; + private _mediaKeysList; + private _media; + private _hasSetMediaKeys; + private _requestLicenseFailureCount; + private mediaKeysPromise; + /** + * @constructs + * @param {Hls} hls Our Hls.js instance + */ + constructor(hls: any); + /** + * @param {string} keySystem Identifier for the key-system, see `KeySystems` enum + * @returns {string} License server URL for key-system (if any configured, otherwise causes error) + * @throws if a unsupported keysystem is passed + */ + getLicenseServerUrl(keySystem: KeySystems): string; + /** + * Requests access object and adds it to our list upon success + * @private + * @param {string} keySystem System ID (see `KeySystems`) + * @param {Array} audioCodecs List of required audio codecs to support + * @param {Array} videoCodecs List of required video codecs to support + * @throws When a unsupported KeySystem is passed + */ + private _attemptKeySystemAccess; + get requestMediaKeySystemAccess(): MediaKeyFunc; + /** + * Handles obtaining access to a key-system + * @private + * @param {string} keySystem + * @param {MediaKeySystemAccess} mediaKeySystemAccess https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemAccess + */ + private _onMediaKeySystemAccessObtained; + /** + * Handles key-creation (represents access to CDM). We are going to create key-sessions upon this + * for all existing keys where no session exists yet. + * + * @private + */ + private _onMediaKeysCreated; + /** + * @private + * @param {*} keySession + */ + private _onNewMediaKeySession; + /** + * @private + * @param {MediaKeySession} keySession + * @param {ArrayBuffer} message + */ + private _onKeySessionMessage; + /** + * @private + * @param e {MediaEncryptedEvent} + */ + private _onMediaEncrypted; + /** + * @private + */ + private _attemptSetMediaKeys; + /** + * @private + */ + private _generateRequestWithPreferredKeySession; + /** + * @private + * @param {string} url License server URL + * @param {ArrayBuffer} keyMessage Message data issued by key-system + * @param {function} callback Called when XHR has succeeded + * @returns {XMLHttpRequest} Unsent (but opened state) XHR object + * @throws if XMLHttpRequest construction failed + */ + private _createLicenseXhr; + /** + * @private + * @param {XMLHttpRequest} xhr + * @param {string} url License server URL + * @param {ArrayBuffer} keyMessage Message data issued by key-system + * @param {function} callback Called when XHR has succeeded + */ + private _onLicenseRequestReadyStageChange; + /** + * @private + * @param {MediaKeysListItem} keysListItem + * @param {ArrayBuffer} keyMessage + * @returns {ArrayBuffer} Challenge data posted to license server + * @throws if KeySystem is unsupported + */ + private _generateLicenseRequestChallenge; + /** + * @private + * @param keyMessage + * @param callback + */ + private _requestLicense; + onMediaAttached(data: { + media: HTMLMediaElement; + }): void; + onMediaDetached(): void; + onManifestParsed(data: any): void; +} +export default EMEController; diff --git a/dist/controller/fragment-finders.d.ts b/dist/controller/fragment-finders.d.ts new file mode 100644 index 00000000000..b1fb912215c --- /dev/null +++ b/dist/controller/fragment-finders.d.ts @@ -0,0 +1,37 @@ +import Fragment from '../loader/fragment'; +/** + * Returns first fragment whose endPdt value exceeds the given PDT. + * @param {Array} fragments - The array of candidate fragments + * @param {number|null} [PDTValue = null] - The PDT value which must be exceeded + * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start/end can be within in order to be considered contiguous + * @returns {*|null} fragment - The best matching fragment + */ +export declare function findFragmentByPDT(fragments: Array, PDTValue: number | null, maxFragLookUpTolerance: number): Fragment | null; +/** + * Finds a fragment based on the SN of the previous fragment; or based on the needs of the current buffer. + * This method compensates for small buffer gaps by applying a tolerance to the start of any candidate fragment, thus + * breaking any traps which would cause the same fragment to be continuously selected within a small range. + * @param {*} fragPrevious - The last frag successfully appended + * @param {Array} fragments - The array of candidate fragments + * @param {number} [bufferEnd = 0] - The end of the contiguous buffered range the playhead is currently within + * @param {number} maxFragLookUpTolerance - The amount of time that a fragment's start/end can be within in order to be considered contiguous + * @returns {*} foundFrag - The best matching fragment + */ +export declare function findFragmentByPTS(fragPrevious: Fragment, fragments: Array, bufferEnd?: number, maxFragLookUpTolerance?: number): Fragment | null; +/** + * The test function used by the findFragmentBySn's BinarySearch to look for the best match to the current buffer conditions. + * @param {*} candidate - The fragment to test + * @param {number} [bufferEnd = 0] - The end of the current buffered range the playhead is currently within + * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous + * @returns {number} - 0 if it matches, 1 if too low, -1 if too high + */ +export declare function fragmentWithinToleranceTest(bufferEnd: number | undefined, maxFragLookUpTolerance: number | undefined, candidate: Fragment): 1 | 0 | -1; +/** + * The test function used by the findFragmentByPdt's BinarySearch to look for the best match to the current buffer conditions. + * This function tests the candidate's program date time values, as represented in Unix time + * @param {*} candidate - The fragment to test + * @param {number} [pdtBufferEnd = 0] - The Unix time representing the end of the current buffered range + * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous + * @returns {boolean} True if contiguous, false otherwise + */ +export declare function pdtWithinToleranceTest(pdtBufferEnd: number, maxFragLookUpTolerance: number, candidate: Fragment): boolean; diff --git a/dist/controller/timeline-controller.d.ts b/dist/controller/timeline-controller.d.ts new file mode 100644 index 00000000000..2c59e3dd0d3 --- /dev/null +++ b/dist/controller/timeline-controller.d.ts @@ -0,0 +1,59 @@ +import EventHandler from '../event-handler'; +import { CaptionScreen } from '../utils/cea-608-parser'; +import Fragment from '../loader/fragment'; +import { MediaPlaylist } from '../types/media-playlist'; +declare class TimelineController extends EventHandler { + private media; + private config; + private enabled; + private Cues; + private textTracks; + private tracks; + private initPTS; + private unparsedVttFrags; + private captionsTracks; + private nonNativeCaptionsTracks; + private captionsProperties; + private readonly cea608Parser1; + private readonly cea608Parser2; + private lastSn; + private prevCC; + private vttCCs; + constructor(hls: any); + addCues(trackName: string, startTime: number, endTime: number, screen: CaptionScreen, cueRanges: Array<[number, number]>): void; + onInitPtsFound(data: { + id: string; + frag: Fragment; + initPTS: number; + }): void; + getExistingTrack(trackName: string): TextTrack | null; + createCaptionsTrack(trackName: string): void; + createNativeTrack(trackName: string): void; + createNonNativeTrack(trackName: string): void; + createTextTrack(kind: TextTrackKind, label: string, lang?: string): TextTrack | undefined; + destroy(): void; + onMediaAttaching(data: { + media: HTMLMediaElement; + }): void; + onMediaDetaching(): void; + onManifestLoading(): void; + _cleanTracks(): void; + onManifestLoaded(data: { + subtitles: Array; + captions: Array; + }): void; + onFragLoaded(data: { + frag: Fragment; + payload: ArrayBuffer; + }): void; + _parseVTTs(frag: Fragment, payload: ArrayBuffer): void; + onFragDecrypted(data: { + frag: Fragment; + payload: any; + }): void; + onFragParsingUserdata(data: { + samples: Array; + }): void; + extractCea608Data(byteArray: Uint8Array): number[][]; +} +export default TimelineController; diff --git a/dist/errors.d.ts b/dist/errors.d.ts new file mode 100644 index 00000000000..8b003a49f63 --- /dev/null +++ b/dist/errors.d.ts @@ -0,0 +1,43 @@ +export declare enum ErrorTypes { + NETWORK_ERROR = "networkError", + MEDIA_ERROR = "mediaError", + KEY_SYSTEM_ERROR = "keySystemError", + MUX_ERROR = "muxError", + OTHER_ERROR = "otherError" +} +/** + * @enum {ErrorDetails} + * @typedef {string} ErrorDetail + */ +export declare enum ErrorDetails { + KEY_SYSTEM_NO_KEYS = "keySystemNoKeys", + KEY_SYSTEM_NO_ACCESS = "keySystemNoAccess", + KEY_SYSTEM_NO_SESSION = "keySystemNoSession", + KEY_SYSTEM_LICENSE_REQUEST_FAILED = "keySystemLicenseRequestFailed", + KEY_SYSTEM_NO_INIT_DATA = "keySystemNoInitData", + MANIFEST_LOAD_ERROR = "manifestLoadError", + MANIFEST_LOAD_TIMEOUT = "manifestLoadTimeOut", + MANIFEST_PARSING_ERROR = "manifestParsingError", + MANIFEST_INCOMPATIBLE_CODECS_ERROR = "manifestIncompatibleCodecsError", + LEVEL_EMPTY_ERROR = "levelEmptyError", + LEVEL_LOAD_ERROR = "levelLoadError", + LEVEL_LOAD_TIMEOUT = "levelLoadTimeOut", + LEVEL_SWITCH_ERROR = "levelSwitchError", + AUDIO_TRACK_LOAD_ERROR = "audioTrackLoadError", + AUDIO_TRACK_LOAD_TIMEOUT = "audioTrackLoadTimeOut", + FRAG_LOAD_ERROR = "fragLoadError", + FRAG_LOAD_TIMEOUT = "fragLoadTimeOut", + FRAG_DECRYPT_ERROR = "fragDecryptError", + FRAG_PARSING_ERROR = "fragParsingError", + REMUX_ALLOC_ERROR = "remuxAllocError", + KEY_LOAD_ERROR = "keyLoadError", + KEY_LOAD_TIMEOUT = "keyLoadTimeOut", + BUFFER_ADD_CODEC_ERROR = "bufferAddCodecError", + BUFFER_APPEND_ERROR = "bufferAppendError", + BUFFER_APPENDING_ERROR = "bufferAppendingError", + BUFFER_STALLED_ERROR = "bufferStalledError", + BUFFER_FULL_ERROR = "bufferFullError", + BUFFER_SEEK_OVER_HOLE = "bufferSeekOverHole", + BUFFER_NUDGE_ON_STALL = "bufferNudgeOnStall", + INTERNAL_EXCEPTION = "internalException" +} diff --git a/dist/event-handler.d.ts b/dist/event-handler.d.ts new file mode 100644 index 00000000000..b5f80de1e74 --- /dev/null +++ b/dist/event-handler.d.ts @@ -0,0 +1,19 @@ +import Hls from './hls'; +declare class EventHandler { + hls: Hls; + handledEvents: any[]; + useGenericHandler: boolean; + constructor(hls: Hls, ...events: any[]); + destroy(): void; + protected onHandlerDestroying(): void; + protected onHandlerDestroyed(): void; + isEventHandler(): boolean | 0; + registerListeners(): void; + unregisterListeners(): void; + /** + * arguments: event (string), data (any) + */ + onEvent(event: string, data: any): void; + onEventGeneric(event: string, data: any): void; +} +export default EventHandler; diff --git a/dist/hls-demo.js b/dist/hls-demo.js new file mode 100644 index 00000000000..7929fc58ea2 --- /dev/null +++ b/dist/hls-demo.js @@ -0,0 +1,40278 @@ +typeof window !== "undefined" && +(function webpackUniversalModuleDefinition(root, factory) { + if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(); + else if(typeof define === 'function' && define.amd) + define([], factory); + else if(typeof exports === 'object') + exports["HlsDemo"] = factory(); 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}; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = "/dist/"; +/******/ +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(__webpack_require__.s = "./demo/main.js"); +/******/ }) +/************************************************************************/ +/******/ ({ + +/***/ "./demo/main.js": +/*!**********************************!*\ + !*** ./demo/main.js + 3 modules ***! + \**********************************/ +/*! no exports provided */ +/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/chart.js/dist/Chart.js (<- Module is not an ECMAScript module) */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +// ESM COMPAT FLAG +__webpack_require__.r(__webpack_exports__); + +// CONCATENATED MODULE: ./demo/demo-utils.js +function sortObject(obj) { + if (typeof obj !== 'object') { + return obj; + } + + var temp = {}; + var keys = []; + + for (var key in obj) { + keys.push(key); + } + + keys.sort(); + + for (var index in keys) { + temp[keys[index]] = sortObject(obj[keys[index]]); + } + + return temp; +} +function copyTextToClipboard(text) { + var textArea = document.createElement('textarea'); + textArea.value = text; + document.body.appendChild(textArea); + textArea.select(); + + try { + var successful = document.execCommand('copy'); + var msg = successful ? 'successful' : 'unsuccessful'; + console.log('Copying text command was ' + msg); + } catch (err) { + console.log('Oops, unable to copy'); + } + + document.body.removeChild(textArea); +} +// EXTERNAL MODULE: ./node_modules/chart.js/dist/Chart.js +var Chart = __webpack_require__("./node_modules/chart.js/dist/Chart.js"); +var Chart_default = /*#__PURE__*/__webpack_require__.n(Chart); + +// EXTERNAL MODULE: ./node_modules/chartjs-plugin-zoom/dist/chartjs-plugin-zoom.js +var chartjs_plugin_zoom = __webpack_require__("./node_modules/chartjs-plugin-zoom/dist/chartjs-plugin-zoom.js"); + +// CONCATENATED MODULE: ./demo/chart/chartjs-horizontal-bar.ts +function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); } + + // Modify horizontalBar so that each dataset (fragments, timeRanges) draws on the same row (level, track or buffer) + +Chart_default.a.controllers.horizontalBar.prototype.calculateBarValuePixels = function (datasetIndex, index, options) { + var chart = this.chart; + + var scale = this._getValueScale(); + + var datasets = chart.data.datasets; + scale._parseValue = scaleParseValue; + + var value = scale._parseValue(datasets[datasetIndex].data[index]); + + var start = value.start === undefined ? 0 : value.max >= 0 && value.min >= 0 ? value.min : value.max; + var length = value.start === undefined ? value.end : value.max >= 0 && value.min >= 0 ? value.max - value.min : value.min - value.max; + var base = scale.getPixelForValue(start); + var head = scale.getPixelForValue(start + length); + var size = head - base; + return { + size: size, + base: base, + head: head, + center: head + size / 2 + }; +}; + +Chart_default.a.controllers.horizontalBar.prototype.calculateBarIndexPixels = function (datasetIndex, index, ruler, options) { + var rowHeight = options.barThickness; + var size = rowHeight * options.categoryPercentage; + var center = ruler.start + (datasetIndex * rowHeight + rowHeight / 2); + return { + base: center - size / 2, + head: center + size / 2, + center: center, + size: size + }; +}; + +Chart_default.a.controllers.horizontalBar.prototype.draw = function () { + var rects = this.getMeta().data; + var len = rects.length; + var dataset = this.getDataset(); + + if (len !== dataset.data.length) { + // View does not match dataset (wait for redraw) + return; + } + + var chart = this.chart; + + var scale = this._getValueScale(); + + scale._parseValue = scaleParseValue; + var ctx = chart.ctx; + var chartArea = chart.chartArea; + Chart_default.a.helpers.canvas.clipArea(ctx, chartArea); + + if (!this.lineHeight) { + this.lineHeight = Math.ceil(ctx.measureText('0').actualBoundingBoxAscent) + 2; + } + + var lineHeight = this.lineHeight; + var range = 0; + + for (var i = 0; i < len; ++i) { + var rect = rects[i]; + var view = rect._view; + + if (!intersects(view.base, view.x, chartArea.left, chartArea.right)) { + // Do not draw elements outside of the chart's viewport + continue; + } + + var obj = dataset.data[i]; + + var val = scale._parseValue(obj); + + if (!isNaN(val.min) && !isNaN(val.max)) { + var dataType = obj.dataType; + var stats = obj.stats; + var isFragment = dataType === 'fragment'; + var isCue = dataType === 'cue'; + + if (isCue) { + view.y += view.height * 0.5 * (i % 2) - view.height * 0.25; + } + + var bounds = boundingRects(view); + var drawText = bounds.w > lineHeight; + + if (isFragment || isCue) { + if (drawText) { + view.borderWidth = 1; + + if (i === 0) { + view.borderSkipped = false; + } + } else { + range = range || scale.getValueForPixel(chartArea.right) - scale.getValueForPixel(chartArea.left); + + if (range > 300 || isCue) { + view.borderWidth = 0; + } + } + + view.backgroundColor = "rgba(0, 0, 0, " + (0.05 + i % 2 / 12) + ")"; + } + + rect.draw(); + + if (isFragment) { + if (!stats) { + stats = {}; + } + + if (stats.aborted) { + ctx.fillStyle = 'rgba(100, 0, 0, 0.3)'; + ctx.fillRect(bounds.x, bounds.y, bounds.w, bounds.h); + } + + if (stats.loaded && stats.total) { + ctx.fillStyle = 'rgba(50, 20, 100, 0.3)'; + ctx.fillRect(bounds.x, bounds.y, bounds.w * stats.loaded / stats.total, bounds.h); + } + } else if (isCue) { + if (obj.active) { + ctx.fillStyle = 'rgba(100, 100, 10, 0.4)'; + ctx.fillRect(bounds.x, bounds.y, bounds.w, bounds.h); + } + } + + if (drawText) { + var start = val.start; // obj.start; + + ctx.fillStyle = 'rgb(0, 0, 0)'; + + if (stats) { + var snBounds = _extends({}, bounds); + + if (obj.cc) { + var ccLabel = "cc:" + obj.cc; + var ccWidth = Math.min(ctx.measureText(ccLabel).width + 2, snBounds.w / 2 - 2); + + if (ccWidth) { + ctx.fillText(ccLabel, snBounds.x + 2, snBounds.y + lineHeight, snBounds.w / 2 - 4); + snBounds.x += ccWidth; + snBounds.w -= ccWidth; + } + } + + var snLabel = "sn: " + obj.sn; + var textWidth = Math.min(ctx.measureText(snLabel).width + 2, snBounds.w - 2); + ctx.fillText(snLabel, snBounds.x + snBounds.w - textWidth, snBounds.y + lineHeight, snBounds.w - 4); + } + + if (isCue) { + var strLength = Math.min(30, Math.ceil(bounds.w / (lineHeight / 3))); + ctx.fillText(('' + obj.content).substr(0, strLength), bounds.x + 2, bounds.y + bounds.h - 3, bounds.w - 5); + } else { + var _float = start !== (start | 0); + + var fixedDigits = _float ? Math.min(5, Math.max(1, Math.floor(bounds.w / 10 - 1))) : 0; + var startString = hhmmss(start, fixedDigits); + ctx.fillText(startString, bounds.x + 2, bounds.y + bounds.h - 3, bounds.w - 5); + } + } + } + } + + Chart_default.a.helpers.canvas.unclipArea(chart.ctx); +}; + +function applyChartInstanceOverrides(chart) { + Object.keys(chart.scales).forEach(function (axis) { + var scale = chart.scales[axis]; + scale._parseValue = scaleParseValue; + }); +} + +function scaleParseValue(value) { + if (value === undefined) { + console.warn('Chart values undefined (update chart)'); + return {}; + } + + var start; + var end; + var min; + var max; + + if (Array.isArray(value)) { + start = +this.getRightValue(value[0]); + end = +this.getRightValue(value[1]); + min = Math.min(start, end); + max = Math.max(start, end); + } else { + start = +this.getRightValue(value.start); + + if ('end' in value) { + end = +this.getRightValue(value.end); + } else { + end = +this.getRightValue(value.start + value.duration); + } + + min = Math.min(start, end); + max = Math.max(start, end); + } + + return { + min: min, + max: max, + start: start, + end: end + }; +} + +function intersects(x1, x2, x3, x4) { + return x2 > x3 && x1 < x4; +} + +function boundingRects(vm) { + var half = vm.height / 2; + var left = Math.min(vm.x, vm.base); + var right = Math.max(vm.x, vm.base); + var top = vm.y - half; + var bottom = vm.y + half; + return { + x: left, + y: top, + w: right - left, + h: bottom - top + }; +} + +function hhmmss(value, fixedDigits) { + var h = value / 3600 | 0; + var m = (value / 60 | 0) % 60; + var s = value % 60; + return (h + ":" + pad(m, 2) + ":" + pad(s.toFixed(fixedDigits), fixedDigits ? fixedDigits + 3 : 2)).replace(/^(?:0+:?)*(\d.*?)(?:\.0*)?$/, '$1'); +} + +function pad(str, length) { + str = '' + str; + + while (str.length < length) { + str = '0' + str; + } + + return str; +} +// CONCATENATED MODULE: ./demo/chart/timeline-chart.ts +function timeline_chart_extends() { timeline_chart_extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return timeline_chart_extends.apply(this, arguments); } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + + +var X_AXIS_SECONDS = 'x-axis-seconds'; +var timeline_chart_TimelineChart = /*#__PURE__*/function () { + function TimelineChart(canvas, chartJsOptions) { + var _this = this; + + this.chart = void 0; + this.rafDebounceRequestId = -1; + this.imageDataBuffer = null; + this.media = null; + this.tracksChangeHandler = void 0; + this.cuesChangeHandler = void 0; + this.hidden = true; + var ctx = canvas.getContext('2d'); + var chart = this.chart = self.chart = new Chart_default.a(ctx, { + type: 'horizontalBar', + data: { + labels: [], + datasets: [] + }, + options: timeline_chart_extends(getChartOptions(), chartJsOptions), + plugins: [{ + afterRender: function afterRender() { + _this.imageDataBuffer = null; + + _this.drawCurrentTime(); + } + }] + }); + applyChartInstanceOverrides(chart); // Log object on click and seek to position + + canvas.onclick = function (event) { + var element = chart.getElementAtEvent(event); + + if (element.length) { + var dataset = chart.data.datasets[element[0]._datasetIndex]; + var obj = dataset.data[element[0]._index]; + console.log(obj); + + if (self.hls && self.hls.media) { + var scale = chart.scales[X_AXIS_SECONDS]; + var pos = Chart_default.a.helpers.getRelativePosition(event, chart); + var time = scale.getValueForPixel(pos.x); + self.hls.media.currentTime = time; + } + } + }; + + canvas.ondblclick = function (event) { + var chartArea = chart.chartArea; + var element = chart.getElementAtEvent(event); + var pos = Chart_default.a.helpers.getRelativePosition(event, chart); + var scale = chart.scales[X_AXIS_SECONDS]; + var range = scale.max - scale.min; + var newDiff = range * (event.getModifierState('Shift') ? -1.0 : 0.5); + var minPercent = (scale.getValueForPixel(pos.x) - scale.min) / range; + var maxPercent = 1 - minPercent; + var minDelta = newDiff * minPercent; + var maxDelta = newDiff * maxPercent; // zoom in when double clicking near elements in chart area + + if (element.length || pos.x > chartArea.left) { + scale.options.ticks.min = Math.max(_this.minZoom, scale.min + minDelta); + scale.options.ticks.max = Math.min(_this.maxZoom, scale.max - maxDelta); + } else { + // chart.resetZoom(); + scale.options.ticks.min = _this.minZoom; + scale.options.ticks.max = _this.maxZoom; + } + + _this.update(); + }; // TODO: Prevent zoom over y axis labels + + } + + var _proto = TimelineChart.prototype; + + _proto.reset = function reset() { + var _this$chart$data = this.chart.data, + labels = _this$chart$data.labels, + datasets = _this$chart$data.datasets; + var scale = this.chart.scales[X_AXIS_SECONDS]; + scale.options.ticks.min = 0; + scale.options.ticks.max = 60; + var config = this.chart.config; + + if (config === null || config === void 0 ? void 0 : config.options) { + config.options.plugins.zoom.zoom.rangeMax.x = 60; + } + + labels.length = 0; + datasets.length = 0; + this.resize(datasets); + }; + + _proto.update = function update() { + if (this.hidden || !this.chart.ctx.canvas.width) { + return; + } + + this.chart.update({ + duration: 0, + lazy: true + }); + }; + + _proto.resize = function resize(datasets) { + var _this2 = this; + + if (this.hidden) { + return; + } + + if (datasets === null || datasets === void 0 ? void 0 : datasets.length) { + var scale = this.chart.scales[X_AXIS_SECONDS]; + var top = this.chart.chartArea.top; + var height = top + datasets.reduce(function (val, dataset) { + return val + dataset.barThickness; + }, 0) + scale.height + 5; + this.chart.canvas.parentNode.style.height = height + "px"; + } + + self.cancelAnimationFrame(this.rafDebounceRequestId); + this.rafDebounceRequestId = self.requestAnimationFrame(function () { + _this2.chart.resize(); + }); + }; + + _proto.show = function show() { + this.hidden = false; + }; + + _proto.hide = function hide() { + this.hidden = true; + }; + + _proto.updateLevels = function updateLevels(levels, levelSwitched) { + var _this3 = this; + + var _this$chart$data2 = this.chart.data, + labels = _this$chart$data2.labels, + datasets = _this$chart$data2.datasets; + var _self$hls = self.hls, + loadLevel = _self$hls.loadLevel, + nextLoadLevel = _self$hls.nextLoadLevel, + nextAutoLevel = _self$hls.nextAutoLevel; + var currentLevel = levelSwitched !== undefined ? levelSwitched : self.hls.currentLevel; + levels.forEach(function (level, i) { + labels.push(getLevelName(level, level.level || level.id || i)); + var borderColor = null; + + if (currentLevel === i) { + borderColor = 'rgba(32, 32, 240, 1.0)'; + } else if (loadLevel === i) { + borderColor = 'rgba(255, 128, 0, 1.0)'; + } else if (nextLoadLevel === i) { + borderColor = 'rgba(200, 200, 64, 1.0)'; + } else if (nextAutoLevel === i) { + borderColor = 'rgba(160, 0, 160, 1.0)'; + } + + datasets.push(datasetWithDefaults({ + url: Array.isArray(level.url) ? level.url[0] : level.url, + trackType: 'level', + borderColor: borderColor, + level: level.level + })); + + if (level.details) { + _this3.updateLevelOrTrack(level.details); + } + }); + this.resize(datasets); + }; + + _proto.updateAudioTracks = function updateAudioTracks(audioTracks) { + var _this4 = this; + + var _this$chart$data3 = this.chart.data, + labels = _this$chart$data3.labels, + datasets = _this$chart$data3.datasets; + var audioTrack = self.hls.audioTrack; + audioTracks.forEach(function (track, i) { + labels.push(getAudioTrackName(track, i)); + datasets.push(datasetWithDefaults({ + url: Array.isArray(track.url) ? track.url[0] : track.url, + trackType: 'audioTrack', + borderColor: audioTrack === i ? 'rgba(32, 32, 240, 1.0)' : null, + audioTrack: i + })); + + if (track.details) { + _this4.updateLevelOrTrack(track.details); + } + }); + this.resize(datasets); + }; + + _proto.updateSubtitleTracks = function updateSubtitleTracks(subtitles) { + var _this5 = this; + + var _this$chart$data4 = this.chart.data, + labels = _this$chart$data4.labels, + datasets = _this$chart$data4.datasets; + var subtitleTrack = self.hls.subtitleTrack; + subtitles.forEach(function (track, i) { + labels.push(getSubtitlesName(track, i)); + datasets.push(datasetWithDefaults({ + url: Array.isArray(track.url) ? track.url[0] : track.url, + trackType: 'subtitleTrack', + borderColor: subtitleTrack === i ? 'rgba(32, 32, 240, 1.0)' : null, + subtitleTrack: i + })); + + if (track.details) { + _this5.updateLevelOrTrack(track.details); + } + }); + this.resize(datasets); + }; + + _proto.removeType = function removeType(trackType) { + var _this$chart$data5 = this.chart.data, + labels = _this$chart$data5.labels, + datasets = _this$chart$data5.datasets; + var i = datasets.length; + + while (i--) { + if (datasets[i].trackType === trackType) { + datasets.splice(i, 1); + labels.splice(i, 1); + } + } + }; + + _proto.updateLevelOrTrack = function updateLevelOrTrack(details) { + var _this6 = this; + + var targetduration = details.targetduration, + totalduration = details.totalduration, + url = details.url; + var datasets = this.chart.data.datasets; // eslint-disable-next-line no-restricted-properties + + var levelDataSet = arrayFind(datasets, function (dataset) { + return dataset.url && dataset.url.toString() === url; + }); + + if (!levelDataSet) { + return; + } + + var data = levelDataSet.data; + data.length = 0; + + if (details.fragments) { + details.fragments.forEach(function (fragment) { + // TODO: keep track of initial playlist start and duration so that we can show drift and pts offset + // (Make that a feature of hls.js v1.0.0 fragments) + data.push(timeline_chart_extends({ + dataType: 'fragment' + }, fragment)); + }); + } + + var start = details.fragments && details.fragments.length ? details.fragments[0].start : 0; + this.maxZoom = Math.max(start + totalduration + targetduration, this.maxZoom); + + if (this.hidden) { + return; + } + + this.rafDebounceRequestId = self.requestAnimationFrame(function () { + return _this6.update(); + }); + } // @ts-ignore + ; + + _proto.updateFragment = function updateFragment(data) { + var _this7 = this; + + var datasets = this.chart.data.datasets; + var frag = data.frag; + var levelDataSet = arrayFind(datasets, function (dataset) { + return dataset.url === frag.baseurl; + }); + + if (!levelDataSet) { + return; + } // eslint-disable-next-line no-restricted-properties + + + var fragData = arrayFind(levelDataSet.data, function (fragData) { + return fragData.relurl === frag.relurl; + }); + + if (fragData && fragData !== frag) { + timeline_chart_extends(fragData, frag); + } + + if (this.hidden) { + return; + } + + this.rafDebounceRequestId = self.requestAnimationFrame(function () { + return _this7.update(); + }); + }; + + _proto.updateSourceBuffers = function updateSourceBuffers(tracks, media) { + var _this8 = this; + + var _this$chart$data6 = this.chart.data, + labels = _this$chart$data6.labels, + datasets = _this$chart$data6.datasets; + var trackTypes = Object.keys(tracks).sort(function (type) { + return type === 'video' ? 1 : -1; + }); + var mediaBufferData = []; + this.media = media; + trackTypes.forEach(function (type) { + var track = tracks[type]; + var data = []; + var sourceBuffer = track.buffer; + var backgroundColor = { + video: 'rgba(0, 0, 255, 0.2)', + audio: 'rgba(128, 128, 0, 0.2)', + audiovideo: 'rgba(128, 128, 255, 0.2)' + }[type]; + labels.unshift(type + " buffer (" + track.id + ")"); + datasets.unshift(datasetWithDefaults({ + data: data, + categoryPercentage: 0.5, + backgroundColor: backgroundColor, + sourceBuffer: sourceBuffer + })); + + sourceBuffer.onupdate = function () { + try { + replaceTimeRangeTuples(sourceBuffer.buffered, data); + } catch (error) { + console.warn(error); + return; + } + + replaceTimeRangeTuples(media.buffered, mediaBufferData); + + _this8.update(); + }; + }); + + if (trackTypes.length === 0) { + media.onprogress = function () { + replaceTimeRangeTuples(media.buffered, mediaBufferData); + + _this8.update(); + }; + } + + labels.unshift('media buffer'); + datasets.unshift(datasetWithDefaults({ + data: mediaBufferData, + categoryPercentage: 0.5, + backgroundColor: 'rgba(0, 255, 0, 0.2)', + media: media + })); + + media.ontimeupdate = function () { + return _this8.drawCurrentTime(); + }; // TextTrackList + + + var textTracks = media.textTracks; + + this.tracksChangeHandler = this.tracksChangeHandler || function (e) { + return _this8.setTextTracks(e.currentTarget); + }; + + textTracks.removeEventListener('addtrack', this.tracksChangeHandler); + textTracks.removeEventListener('removetrack', this.tracksChangeHandler); + textTracks.removeEventListener('change', this.tracksChangeHandler); + textTracks.addEventListener('addtrack', this.tracksChangeHandler); + textTracks.addEventListener('removetrack', this.tracksChangeHandler); + textTracks.addEventListener('change', this.tracksChangeHandler); + this.setTextTracks(textTracks); + this.resize(datasets); + }; + + _proto.setTextTracks = function setTextTracks(textTracks) { + var _this9 = this; + + var _this$chart$data7 = this.chart.data, + labels = _this$chart$data7.labels, + datasets = _this$chart$data7.datasets; + this.removeType('textTrack'); + [].forEach.call(textTracks, function (textTrack, i) { + if (textTrack.kind === 'subtitles' || textTrack.kind === 'captions') { + return; + } + + var data = []; + labels.push((textTrack.name || textTrack.label) + " " + textTrack.kind + " (" + textTrack.mode + ")"); + datasets.push(datasetWithDefaults({ + data: data, + categoryPercentage: 0.5, + url: '', + trackType: 'textTrack', + borderColor: textTrack.mode !== 'hidden' === i ? 'rgba(32, 32, 240, 1.0)' : null, + textTrack: i + })); + + _this9.cuesChangeHandler = _this9.cuesChangeHandler || function (e) { + return _this9.updateTextTrackCues(e.currentTarget); + }; + + textTrack._data = data; + textTrack.removeEventListener('cuechange', _this9.cuesChangeHandler); + textTrack.addEventListener('cuechange', _this9.cuesChangeHandler); + + _this9.updateTextTrackCues(textTrack); + }); + this.resize(datasets); + }; + + _proto.updateTextTrackCues = function updateTextTrackCues(textTrack) { + var _this10 = this; + + var data = textTrack._data; + + if (!data) { + return; + } + + var activeCues = textTrack.activeCues, + cues = textTrack.cues; + data.length = 0; + + if (!cues) { + return; + } + + var length = cues.length; + var activeLength = 0; + var activeMin = Infinity; + var activeMax = 0; + + if (activeCues) { + activeLength = activeCues.length; + + for (var i = 0; i < activeLength; i++) { + var cue = activeCues[i]; + + if (!cue && activeCues.item) { + cue = activeCues.item(i); + } + + if (cue) { + activeMin = Math.min(activeMin, cue.startTime); + activeMax = cue.endTime ? Math.max(activeMax, cue.endTime) : activeMax; + } else { + activeLength--; + } + } + } + + var _loop = function _loop(_i) { + var cue = cues[_i]; + + if (!cue && cues.item) { + cue = cues.item(_i); + } + + if (!cue) { + return "continue"; + } + + var start = cue.startTime; + var end = cue.endTime; + var content = getCueLabel(cue); + var active = false; + + if (activeLength && end >= activeMin && start <= activeMax) { + active = [].some.call(activeCues, function (activeCue) { + return cuesMatch(activeCue, cue); + }); + } + + data.push({ + start: start, + end: end, + content: content, + active: active, + dataType: 'cue' + }); + }; + + for (var _i = 0; _i < length; _i++) { + var _ret = _loop(_i); + + if (_ret === "continue") continue; + } + + if (this.hidden) { + return; + } + + self.cancelAnimationFrame(this.rafDebounceRequestId); + this.rafDebounceRequestId = self.requestAnimationFrame(function () { + _this10.update(); + }); + }; + + _proto.drawCurrentTime = function drawCurrentTime() { + var chart = this.chart; + + if (self.hls && self.hls.media && chart.data.datasets.length) { + var currentTime = self.hls.media.currentTime; + var scale = chart.scales[X_AXIS_SECONDS]; + var ctx = chart.ctx; + + if (this.hidden || !ctx.canvas.width) { + return; + } + + var chartArea = chart.chartArea; + var x = scale.getPixelForValue(currentTime); + ctx.restore(); + ctx.save(); + this.drawLineX(ctx, x, chartArea); + + if (x > chartArea.left && x < chartArea.right) { + ctx.fillStyle = this.getCurrentTimeColor(self.hls.media); + var y = chartArea.top + chart.data.datasets[0].barThickness + 1; + ctx.fillText(hhmmss(currentTime, 5), x + 2, y, 100); + } + + ctx.restore(); + } + }; + + _proto.getCurrentTimeColor = function getCurrentTimeColor(video) { + if (!video.readyState || video.ended) { + return 'rgba(0, 0, 0, 0.9)'; + } + + if (video.seeking || video.readyState < 3) { + return 'rgba(255, 128, 0, 0.9)'; + } + + if (video.paused) { + return 'rgba(128, 0, 255, 0.9)'; + } + + return 'rgba(0, 0, 255, 0.9)'; + }; + + _proto.drawLineX = function drawLineX(ctx, x, chartArea) { + if (!this.imageDataBuffer) { + var devicePixelRatio = self.devicePixelRatio || 1; + this.imageDataBuffer = ctx.getImageData(0, 0, chartArea.right * devicePixelRatio, chartArea.bottom * devicePixelRatio); + } else { + ctx.fillStyle = '#ffffff'; + ctx.fillRect(0, 0, chartArea.right, chartArea.bottom); + ctx.putImageData(this.imageDataBuffer, 0, 0); + } + + if (x > chartArea.left && x < chartArea.right) { + ctx.lineWidth = 1; + ctx.strokeStyle = this.getCurrentTimeColor(self.hls.media); // alpha '0.5' + + ctx.beginPath(); + ctx.moveTo(x, chartArea.top); + ctx.lineTo(x, chartArea.bottom); + ctx.stroke(); + } + }; + + _createClass(TimelineChart, [{ + key: "minZoom", + get: function get() { + if (this.chart.config && this.chart.config.options) { + return this.chart.config.options.plugins.zoom.zoom.rangeMin.x; + } + + return 60; + } // @ts-ignore + + }, { + key: "maxZoom", + get: function get() { + if (this.chart.config && this.chart.config.options) { + return this.chart.config.options.plugins.zoom.zoom.rangeMax.x; + } + + return 60; + } // @ts-ignore + , + set: function set(x) { + var chart = this.chart; + var config = chart.config; + + if (config === null || config === void 0 ? void 0 : config.options) { + var currentZoom = config.options.plugins.zoom.zoom.rangeMax.x; + var newZoom = Math.max(x, currentZoom); + + if (currentZoom === 60 && newZoom !== currentZoom) { + var scale = chart.scales[X_AXIS_SECONDS]; + scale.options.ticks.max = newZoom; + } + + config.options.plugins.zoom.zoom.rangeMax.x = newZoom; + } + } + }]); + + return TimelineChart; +}(); + +function datasetWithDefaults(options) { + return timeline_chart_extends({ + data: [], + xAxisID: X_AXIS_SECONDS, + barThickness: 35, + categoryPercentage: 1 + }, options); +} + +function getLevelName(level, index) { + var label = '(main playlist)'; + + if (level.attrs && level.attrs.BANDWIDTH) { + label = getMainLevelAttribute(level) + "@" + level.attrs.BANDWIDTH; + + if (level.name) { + label = label + " (" + level.name + ")"; + } + } else if (level.name) { + label = level.name; + } + + return label + " L-" + index; +} + +function getMainLevelAttribute(level) { + return level.attrs.RESOLUTION || level.attrs.CODECS || level.attrs.AUDIO; +} + +function getAudioTrackName(track, index) { + var label = track.lang ? track.name + "/" + track.lang : track.name; + return label + " (" + (track.groupId || track.attrs['GROUP-ID']) + ") A-" + index; +} + +function getSubtitlesName(track, index) { + var label = track.lang ? track.name + "/" + track.lang : track.name; + return label + " (" + (track.groupId || track.attrs['GROUP-ID']) + ") S-" + index; +} + +function replaceTimeRangeTuples(timeRanges, data) { + data.length = 0; + var length = timeRanges.length; + + for (var i = 0; i < length; i++) { + data.push([timeRanges.start(i), timeRanges.end(i)]); + } +} + +function cuesMatch(cue1, cue2) { + return cue1.startTime === cue2.startTime && cue1.endTime === cue2.endTime && cue1.text === cue2.text && cue1.data === cue2.data && JSON.stringify(cue1.value) === JSON.stringify(cue2.value); +} + +function getCueLabel(cue) { + if (cue.text) { + return cue.text; + } + + var result = parseDataCue(cue); + return JSON.stringify(result); +} + +function parseDataCue(cue) { + var data = {}; + var value = cue.value; + + if (value) { + if (value.info) { + var collection = data[value.key]; + + if (collection !== Object(collection)) { + collection = {}; + data[value.key] = collection; + } + + collection[value.info] = value.data; + } else { + data[value.key] = value.data; + } + } + + return data; +} + +function getChartOptions() { + return { + animation: { + duration: 0 + }, + elements: { + rectangle: { + borderWidth: 1, + borderColor: 'rgba(20, 20, 20, 1)' + } + }, + events: ['click', 'touchstart'], + hover: { + mode: null, + animationDuration: 0 + }, + legend: { + display: false + }, + maintainAspectRatio: false, + responsiveAnimationDuration: 0, + scales: { + // TODO: additional xAxes for PTS and PDT + xAxes: [{ + id: X_AXIS_SECONDS, + ticks: { + beginAtZero: true, + sampleSize: 0, + maxRotation: 0, + callback: function callback(tickValue, i, ticks) { + if (i === 0 || i === ticks.length - 1) { + return tickValue ? '' : '0'; + } else { + return hhmmss(tickValue, 2); + } + } + } + }], + yAxes: [{ + gridLines: { + display: false + } + }] + }, + tooltips: { + enabled: false + }, + plugins: { + zoom: { + pan: { + enabled: true, + mode: 'x', + rangeMin: { + x: -10, + y: null + }, + rangeMax: { + x: null, + y: null + } + }, + zoom: { + enabled: true, + speed: 0.1, + mode: 'x', + rangeMin: { + x: 0, + y: null + }, + rangeMax: { + x: 60, + y: null + } + } + } + } + }; +} + +function arrayFind(array, predicate) { + var len = array.length >>> 0; + + if (typeof predicate !== 'function') { + throw TypeError('predicate must be a function'); + } + + var thisArg = arguments[2]; + var k = 0; + + while (k < len) { + var kValue = array[k]; + + if (predicate.call(thisArg, kValue, k, array)) { + return kValue; + } + + k++; + } + + return undefined; +} +// CONCATENATED MODULE: ./demo/main.js +/* global $, Hls, __NETLIFY__ */ + +/* eslint camelcase: 0 */ + + +var NETLIFY = {}; // replaced in build + +var STORAGE_KEYS = { + Editor_Persistence: 'hlsjs:config-editor-persist', + Hls_Config: 'hlsjs:config' +}; + +var testStreams = __webpack_require__(/*! ../tests/test-streams */ "./tests/test-streams.js"); + +var defaultTestStreamUrl = testStreams['bbb'].url; +var sourceURL = decodeURIComponent(getURLParam('src', defaultTestStreamUrl)); +var demoConfig = getURLParam('demoConfig', null); + +if (demoConfig) { + demoConfig = JSON.parse(atob(demoConfig)); +} else { + demoConfig = {}; +} + +var hlsjsDefaults = { + debug: true, + enableWorker: true, + liveBackBufferLength: 60 * 15 +}; +var enableStreaming = getDemoConfigPropOrDefault('enableStreaming', true); +var autoRecoverError = getDemoConfigPropOrDefault('autoRecoverError', true); +var levelCapping = getDemoConfigPropOrDefault('levelCapping', -1); +var limitMetrics = getDemoConfigPropOrDefault('limitMetrics', -1); +var dumpfMP4 = getDemoConfigPropOrDefault('dumpfMP4', false); +var bufferingIdx = -1; +var selectedTestStream = null; +var video = $('#video')[0]; +var startTime = Date.now(); +var lastSeekingIdx; +var lastStartPosition; +var lastDuration; +var lastAudioTrackSwitchingIdx; +var hls; +var url; +var events; +var main_stats; +var tracks; +var fmp4Data; +var configPersistenceEnabled = false; +var configEditor = null; +var main_chart; +$(document).ready(function () { + setupConfigEditor(); + main_chart = setupTimelineChart(); + Object.keys(testStreams).forEach(function (key) { + var stream = testStreams[key]; + var option = new Option(stream.description, key); + $('#streamSelect').append(option); + }); + $('#streamSelect').change(function () { + selectedTestStream = testStreams[$('#streamSelect').val()]; + var streamUrl = selectedTestStream.url; + $('#streamURL').val(streamUrl); + loadSelectedStream(); + }); + $('#streamURL').change(function () { + selectedTestStream = null; + loadSelectedStream(); + }); + $('#videoSize').change(function () { + $('#video').width($('#videoSize').val()); + $('#bufferedCanvas').width($('#videoSize').val()); + }); + $('#enableStreaming').click(function () { + enableStreaming = this.checked; + loadSelectedStream(); + }); + $('#autoRecoverError').click(function () { + autoRecoverError = this.checked; + onDemoConfigChanged(); + }); + $('#dumpfMP4').click(function () { + dumpfMP4 = this.checked; + onDemoConfigChanged(); + }); + $('#limitMetrics').change(function () { + limitMetrics = this.value; + onDemoConfigChanged(); + }); + $('#levelCapping').change(function () { + levelCapping = this.value; + onDemoConfigChanged(); + }); + $('#limitMetrics').val(limitMetrics); + $('#enableStreaming').prop('checked', enableStreaming); + $('#autoRecoverError').prop('checked', autoRecoverError); + $('#dumpfMP4').prop('checked', dumpfMP4); + $('#levelCapping').val(levelCapping); // link to version on npm if canary + // github branch for a branch version + // github tag for a normal tag + // github PR for a pr + + function getVersionLink(version) { + var alphaRegex = /[-.]0\.alpha\./; + + if (alphaRegex.test(version)) { + return "https://www.npmjs.com/package/hls.js/v/" + encodeURIComponent(version); + } else if (NETLIFY.reviewID) { + return "https://github.com/video-dev/hls.js/pull/" + NETLIFY.reviewID; + } else if (NETLIFY.branch) { + return "https://github.com/video-dev/hls.js/tree/" + encodeURIComponent(NETLIFY.branch); + } + + return "https://github.com/video-dev/hls.js/releases/tag/v" + encodeURIComponent(version); + } + + var version = Hls.version; + + if (version) { + var $a = $('').attr('target', '_blank').attr('href', getVersionLink(version)).text('v' + version); + $('.title').append($a); + } + + $('#streamURL').val(sourceURL); + video.volume = 0.05; + hideAllTabs(); // $('#timelineTab').show(); + + $('#metricsButtonWindow').toggle(window.windowSliding); + $('#metricsButtonFixed').toggle(!window.windowSliding); + loadSelectedStream(); +}); + +function setupGlobals() { + window.events = events = { + url: url, + t0: performance.now(), + load: [], + buffer: [], + video: [], + level: [], + bitrate: [] + }; // actual values, only on window + + window.recoverDecodingErrorDate = null; + window.recoverSwapAudioCodecDate = null; + window.fmp4Data = fmp4Data = { + 'audio': [], + 'video': [] + }; + window.onClickBufferedRange = onClickBufferedRange; + window.updateLevelInfo = updateLevelInfo; + window.onDemoConfigChanged = onDemoConfigChanged; + window.createfMP4 = createfMP4; + window.goToMetricsPermaLink = goToMetricsPermaLink; + window.toggleTab = toggleTab; + window.applyConfigEditorValue = applyConfigEditorValue; +} + +function trimArray(target, limit) { + if (limit < 0) { + return; + } + + while (target.length > limit) { + target.shift(); + } +} + +function trimEventHistory() { + var x = limitMetrics; + + if (x < 0) { + return; + } + + trimArray(events.load, x); + trimArray(events.buffer, x); + trimArray(events.video, x); + trimArray(events.level, x); + trimArray(events.bitrate, x); +} + +function loadSelectedStream() { + if (!Hls.isSupported()) { + handleUnsupported(); + return; + } + + url = $('#streamURL').val(); + setupGlobals(); + hideCanvas(); + + if (hls) { + hls.destroy(); + + if (hls.bufferTimer) { + clearInterval(hls.bufferTimer); + hls.bufferTimer = undefined; + } + + hls = null; + } + + if (!enableStreaming) { + logStatus('Streaming disabled'); + return; + } + + logStatus('Loading ' + url); // Extending both a demo-specific config and the user config which can override all + + var hlsConfig = $.extend({}, hlsjsDefaults, getEditorValue({ + parse: true + })); + + if (selectedTestStream && selectedTestStream.config) { + console.info('[loadSelectedStream] extending hls config with stream-specific config: ', selectedTestStream.config); + $.extend(hlsConfig, selectedTestStream.config); + updateConfigEditorValue(hlsConfig); + } + + onDemoConfigChanged(); + console.log('Using Hls.js config:', hlsConfig); + window.hls = hls = new Hls(hlsConfig); + logStatus('Loading manifest and attaching video element...'); + addChartEventListeners(hls); + hls.loadSource(url); + hls.autoLevelCapping = levelCapping; + hls.attachMedia(video); + hls.on(Hls.Events.MEDIA_ATTACHED, function () { + logStatus('Media element attached'); + bufferingIdx = -1; + events.video.push({ + time: performance.now() - events.t0, + type: 'Media attached' + }); + trimEventHistory(); + }); + hls.on(Hls.Events.MEDIA_DETACHED, function () { + logStatus('Media element detached'); + bufferingIdx = -1; + tracks = []; + events.video.push({ + time: performance.now() - events.t0, + type: 'Media detached' + }); + trimEventHistory(); + }); + hls.on(Hls.Events.FRAG_PARSING_INIT_SEGMENT, function (name, data) { + showCanvas(); + events.video.push({ + time: performance.now() - events.t0, + type: data.id + ' init segment' + }); + trimEventHistory(); + }); + hls.on(Hls.Events.FRAG_PARSING_METADATA, function (name, data) {// console.log("Id3 samples ", data.samples); + }); + hls.on(Hls.Events.LEVEL_SWITCHING, function (name, data) { + events.level.push({ + time: performance.now() - events.t0, + id: data.level, + bitrate: Math.round(hls.levels[data.level].bitrate / 1000) + }); + trimEventHistory(); + updateLevelInfo(); + }); + hls.on(Hls.Events.MANIFEST_PARSED, function (name, data) { + events.load.push({ + type: 'manifest', + name: '', + start: 0, + end: data.levels.length, + time: data.stats.trequest - events.t0, + latency: data.stats.tfirst - data.stats.trequest, + load: data.stats.tload - data.stats.tfirst, + duration: data.stats.tload - data.stats.tfirst + }); + trimEventHistory(); + window.refreshCanvas(); + }); + hls.on(Hls.Events.MANIFEST_PARSED, function (name, data) { + logStatus('No of quality levels found: ' + hls.levels.length); + logStatus('Manifest successfully loaded'); + main_stats = { + levelNb: data.levels.length, + levelParsed: 0 + }; + trimEventHistory(); + updateLevelInfo(); + }); + hls.on(Hls.Events.AUDIO_TRACKS_UPDATED, function (name, data) { + logStatus('No of audio tracks found: ' + data.audioTracks.length); + updateAudioTrackInfo(); + }); + hls.on(Hls.Events.AUDIO_TRACK_SWITCHING, function (name, data) { + logStatus('Audio track switching...'); + updateAudioTrackInfo(); + events.video.push({ + time: performance.now() - events.t0, + type: 'audio switching', + name: '@' + data.id + }); + trimEventHistory(); + lastAudioTrackSwitchingIdx = events.video.length - 1; + }); + hls.on(Hls.Events.AUDIO_TRACK_SWITCHED, function (name, data) { + logStatus('Audio track switched'); + updateAudioTrackInfo(); + var event = { + time: performance.now() - events.t0, + type: 'audio switched', + name: '@' + data.id + }; + + if (lastAudioTrackSwitchingIdx !== undefined) { + events.video[lastAudioTrackSwitchingIdx].duration = event.time - events.video[lastAudioTrackSwitchingIdx].time; + lastAudioTrackSwitchingIdx = undefined; + } + + events.video.push(event); + trimEventHistory(); + }); + hls.on(Hls.Events.LEVEL_LOADED, function (name, data) { + events.isLive = data.details.live; + var event = { + type: 'level', + id: data.level, + start: data.details.startSN, + end: data.details.endSN, + time: data.stats.trequest - events.t0, + latency: data.stats.tfirst - data.stats.trequest, + load: data.stats.tload - data.stats.tfirst, + parsing: data.stats.tparsed - data.stats.tload, + duration: data.stats.tload - data.stats.tfirst + }; + var parsingDuration = data.stats.tparsed - data.stats.tload; + + if (main_stats.levelParsed) { + this.sumLevelParsingMs += parsingDuration; + } else { + this.sumLevelParsingMs = parsingDuration; + } + + main_stats.levelParsed++; + main_stats.levelParsingUs = Math.round(1000 * this.sumLevelParsingMs / main_stats.levelParsed); // console.log('parsing level duration :' + stats.levelParsingUs + 'us,count:' + stats.levelParsed); + + events.load.push(event); + trimEventHistory(); + window.refreshCanvas(); + }); + hls.on(Hls.Events.AUDIO_TRACK_LOADED, function (name, data) { + events.isLive = data.details.live; + var event = { + type: 'audio track', + id: data.id, + start: data.details.startSN, + end: data.details.endSN, + time: data.stats.trequest - events.t0, + latency: data.stats.tfirst - data.stats.trequest, + load: data.stats.tload - data.stats.tfirst, + parsing: data.stats.tparsed - data.stats.tload, + duration: data.stats.tload - data.stats.tfirst + }; + events.load.push(event); + trimEventHistory(); + window.refreshCanvas(); + }); + hls.on(Hls.Events.FRAG_BUFFERED, function (name, data) { + var event = { + type: data.frag.type + ' fragment', + id: data.frag.level, + id2: data.frag.sn, + time: data.stats.trequest - events.t0, + latency: data.stats.tfirst - data.stats.trequest, + load: data.stats.tload - data.stats.tfirst, + parsing: data.stats.tparsed - data.stats.tload, + buffer: data.stats.tbuffered - data.stats.tparsed, + duration: data.stats.tbuffered - data.stats.tfirst, + bw: Math.round(8 * data.stats.total / (data.stats.tbuffered - data.stats.trequest)), + size: data.stats.total + }; + events.load.push(event); + events.bitrate.push({ + time: performance.now() - events.t0, + bitrate: event.bw, + duration: data.frag.duration, + level: event.id + }); + + if (hls.bufferTimer === undefined) { + events.buffer.push({ + time: 0, + buffer: 0, + pos: 0 + }); + hls.bufferTimer = window.setInterval(checkBuffer, 100); + } + + trimEventHistory(); + window.refreshCanvas(); + updateLevelInfo(); + var latency = data.stats.tfirst - data.stats.trequest; + var parsing = data.stats.tparsed - data.stats.tload; + var process = data.stats.tbuffered - data.stats.trequest; + var bitrate = Math.round(8 * data.stats.length / (data.stats.tbuffered - data.stats.tfirst)); + + if (main_stats.fragBuffered) { + main_stats.fragMinLatency = Math.min(main_stats.fragMinLatency, latency); + main_stats.fragMaxLatency = Math.max(main_stats.fragMaxLatency, latency); + main_stats.fragMinProcess = Math.min(main_stats.fragMinProcess, process); + main_stats.fragMaxProcess = Math.max(main_stats.fragMaxProcess, process); + main_stats.fragMinKbps = Math.min(main_stats.fragMinKbps, bitrate); + main_stats.fragMaxKbps = Math.max(main_stats.fragMaxKbps, bitrate); + main_stats.autoLevelCappingMin = Math.min(main_stats.autoLevelCappingMin, hls.autoLevelCapping); + main_stats.autoLevelCappingMax = Math.max(main_stats.autoLevelCappingMax, hls.autoLevelCapping); + main_stats.fragBuffered++; + } else { + main_stats.fragMinLatency = main_stats.fragMaxLatency = latency; + main_stats.fragMinProcess = main_stats.fragMaxProcess = process; + main_stats.fragMinKbps = main_stats.fragMaxKbps = bitrate; + main_stats.fragBuffered = 1; + main_stats.fragBufferedBytes = 0; + main_stats.autoLevelCappingMin = main_stats.autoLevelCappingMax = hls.autoLevelCapping; + this.sumLatency = 0; + this.sumKbps = 0; + this.sumProcess = 0; + this.sumParsing = 0; + } + + main_stats.fraglastLatency = latency; + this.sumLatency += latency; + main_stats.fragAvgLatency = Math.round(this.sumLatency / main_stats.fragBuffered); + main_stats.fragLastProcess = process; + this.sumProcess += process; + this.sumParsing += parsing; + main_stats.fragAvgProcess = Math.round(this.sumProcess / main_stats.fragBuffered); + main_stats.fragLastKbps = bitrate; + this.sumKbps += bitrate; + main_stats.fragAvgKbps = Math.round(this.sumKbps / main_stats.fragBuffered); + main_stats.fragBufferedBytes += data.stats.total; + main_stats.fragparsingKbps = Math.round(8 * main_stats.fragBufferedBytes / this.sumParsing); + main_stats.fragparsingMs = Math.round(this.sumParsing); + main_stats.autoLevelCappingLast = hls.autoLevelCapping; + }); + hls.on(Hls.Events.LEVEL_SWITCHED, function (name, data) { + var event = { + time: performance.now() - events.t0, + type: 'level switched', + name: data.level + }; + events.video.push(event); + trimEventHistory(); + window.refreshCanvas(); + updateLevelInfo(); + }); + hls.on(Hls.Events.FRAG_CHANGED, function (name, data) { + var event = { + time: performance.now() - events.t0, + type: 'frag changed', + name: data.frag.sn + ' @ ' + data.frag.level + }; + events.video.push(event); + trimEventHistory(); + window.refreshCanvas(); + updateLevelInfo(); + main_stats.tagList = data.frag.tagList; + var level = data.frag.level; + var autoLevel = data.frag.autoLevel; + + if (main_stats.levelStart === undefined) { + main_stats.levelStart = level; + } + + if (autoLevel) { + if (main_stats.fragChangedAuto) { + main_stats.autoLevelMin = Math.min(main_stats.autoLevelMin, level); + main_stats.autoLevelMax = Math.max(main_stats.autoLevelMax, level); + main_stats.fragChangedAuto++; + + if (this.levelLastAuto && level !== main_stats.autoLevelLast) { + main_stats.autoLevelSwitch++; + } + } else { + main_stats.autoLevelMin = main_stats.autoLevelMax = level; + main_stats.autoLevelSwitch = 0; + main_stats.fragChangedAuto = 1; + this.sumAutoLevel = 0; + } + + this.sumAutoLevel += level; + main_stats.autoLevelAvg = Math.round(1000 * this.sumAutoLevel / main_stats.fragChangedAuto) / 1000; + main_stats.autoLevelLast = level; + } else { + if (main_stats.fragChangedManual) { + main_stats.manualLevelMin = Math.min(main_stats.manualLevelMin, level); + main_stats.manualLevelMax = Math.max(main_stats.manualLevelMax, level); + main_stats.fragChangedManual++; + + if (!this.levelLastAuto && level !== main_stats.manualLevelLast) { + main_stats.manualLevelSwitch++; + } + } else { + main_stats.manualLevelMin = main_stats.manualLevelMax = level; + main_stats.manualLevelSwitch = 0; + main_stats.fragChangedManual = 1; + } + + main_stats.manualLevelLast = level; + } + + this.levelLastAuto = autoLevel; + }); + hls.on(Hls.Events.FRAG_LOAD_EMERGENCY_ABORTED, function (name, data) { + if (main_stats) { + if (main_stats.fragLoadEmergencyAborted === undefined) { + main_stats.fragLoadEmergencyAborted = 1; + } else { + main_stats.fragLoadEmergencyAborted++; + } + } + }); + hls.on(Hls.Events.FRAG_DECRYPTED, function (name, data) { + if (!main_stats.fragDecrypted) { + main_stats.fragDecrypted = 0; + this.totalDecryptTime = 0; + main_stats.fragAvgDecryptTime = 0; + } + + main_stats.fragDecrypted++; + this.totalDecryptTime += data.stats.tdecrypt - data.stats.tstart; + main_stats.fragAvgDecryptTime = this.totalDecryptTime / main_stats.fragDecrypted; + }); + hls.on(Hls.Events.ERROR, function (name, data) { + console.warn('Error event:', data); + + switch (data.details) { + case Hls.ErrorDetails.MANIFEST_LOAD_ERROR: + try { + $('#errorOut').html('Cannot load ' + url + '
HTTP response code:' + data.response.code + '
' + data.response.text); + + if (data.response.code === 0) { + $('#errorOut').append('This might be a CORS issue, consider installing Allow-Control-Allow-Origin Chrome Extension'); + } + } catch (err) { + $('#errorOut').html('Cannot load ' + url + '
Response body: ' + data.response.text); + } + + break; + + case Hls.ErrorDetails.MANIFEST_LOAD_TIMEOUT: + logError('Timeout while loading manifest'); + break; + + case Hls.ErrorDetails.MANIFEST_PARSING_ERROR: + logError('Error while parsing manifest:' + data.reason); + break; + + case Hls.ErrorDetails.LEVEL_EMPTY_ERROR: + logError('Loaded level contains no fragments ' + data.level + ' ' + data.url); + handleLevelError(data); + break; + + case Hls.ErrorDetails.LEVEL_LOAD_ERROR: + logError('Error while loading level playlist ' + data.context.level + ' ' + data.url); + handleLevelError(data); + break; + + case Hls.ErrorDetails.LEVEL_LOAD_TIMEOUT: + logError('Timeout while loading level playlist ' + data.context.level + ' ' + data.url); + handleLevelError(data); + break; + + case Hls.ErrorDetails.LEVEL_SWITCH_ERROR: + logError('Error while trying to switch to level ' + data.level); + break; + + case Hls.ErrorDetails.FRAG_LOAD_ERROR: + logError('Error while loading fragment ' + data.frag.url); + break; + + case Hls.ErrorDetails.FRAG_LOAD_TIMEOUT: + logError('Timeout while loading fragment ' + data.frag.url); + break; + + case Hls.ErrorDetails.FRAG_LOOP_LOADING_ERROR: + logError('Fragment-loop loading error'); + break; + + case Hls.ErrorDetails.FRAG_DECRYPT_ERROR: + logError('Decrypting error:' + data.reason); + break; + + case Hls.ErrorDetails.FRAG_PARSING_ERROR: + logError('Parsing error:' + data.reason); + break; + + case Hls.ErrorDetails.KEY_LOAD_ERROR: + logError('Error while loading key ' + data.frag.decryptdata.uri); + break; + + case Hls.ErrorDetails.KEY_LOAD_TIMEOUT: + logError('Timeout while loading key ' + data.frag.decryptdata.uri); + break; + + case Hls.ErrorDetails.BUFFER_APPEND_ERROR: + logError('Buffer append error'); + break; + + case Hls.ErrorDetails.BUFFER_ADD_CODEC_ERROR: + logError('Buffer add codec error for ' + data.mimeType + ':' + data.err.message); + break; + + case Hls.ErrorDetails.BUFFER_APPENDING_ERROR: + logError('Buffer appending error'); + break; + + case Hls.ErrorDetails.BUFFER_STALLED_ERROR: + logError('Buffer stalled error'); + break; + + default: + break; + } + + if (data.fatal) { + console.error('Fatal error :' + data.details); + + switch (data.type) { + case Hls.ErrorTypes.MEDIA_ERROR: + handleMediaError(); + break; + + case Hls.ErrorTypes.NETWORK_ERROR: + logError('A network error occurred'); + break; + + default: + logError('An unrecoverable error occurred'); + hls.destroy(); + break; + } + } + + if (!main_stats) { + main_stats = {}; + } // track all errors independently + + + if (main_stats[data.details] === undefined) { + main_stats[data.details] = 1; + } else { + main_stats[data.details] += 1; + } // track fatal error + + + if (data.fatal) { + if (main_stats.fatalError === undefined) { + main_stats.fatalError = 1; + } else { + main_stats.fatalError += 1; + } + } + + $('#statisticsOut').text(JSON.stringify(sortObject(main_stats), null, '\t')); + }); + hls.on(Hls.Events.BUFFER_CREATED, function (name, data) { + tracks = data.tracks; + }); + hls.on(Hls.Events.BUFFER_APPENDING, function (name, data) { + if (dumpfMP4) { + fmp4Data[data.type].push(data.data); + } + }); + hls.on(Hls.Events.FPS_DROP, function (name, data) { + var evt = { + time: performance.now() - events.t0, + type: 'frame drop', + name: data.currentDropped + '/' + data.currentDecoded + }; + events.video.push(evt); + trimEventHistory(); + + if (main_stats) { + if (main_stats.fpsDropEvent === undefined) { + main_stats.fpsDropEvent = 1; + } else { + main_stats.fpsDropEvent++; + } + + main_stats.fpsTotalDroppedFrames = data.totalDroppedFrames; + } + }); + video.addEventListener('resize', handleVideoEvent); + video.addEventListener('seeking', handleVideoEvent); + video.addEventListener('seeked', handleVideoEvent); + video.addEventListener('pause', handleVideoEvent); + video.addEventListener('play', handleVideoEvent); + video.addEventListener('canplay', handleVideoEvent); + video.addEventListener('canplaythrough', handleVideoEvent); + video.addEventListener('ended', handleVideoEvent); + video.addEventListener('playing', handleVideoEvent); + video.addEventListener('error', handleVideoEvent); + video.addEventListener('loadedmetadata', handleVideoEvent); + video.addEventListener('loadeddata', handleVideoEvent); + video.addEventListener('durationchange', handleVideoEvent); +} + +function handleUnsupported() { + if (navigator.userAgent.toLowerCase().indexOf('firefox') !== -1) { + logStatus('You are using Firefox, it looks like MediaSource is not enabled,
please ensure the following keys are set appropriately in about:config
media.mediasource.enabled=true
media.mediasource.mp4.enabled=true
media.mediasource.whitelist=false'); + } else { + logStatus('Your Browser does not support MediaSourceExtension / MP4 mediasource'); + } +} + +function handleVideoEvent(evt) { + var data = ''; + + switch (evt.type) { + case 'durationchange': + if (evt.target.duration - lastDuration <= 0.5) { + // some browsers report several duration change events with almost the same value ... avoid spamming video events + return; + } + + lastDuration = evt.target.duration; + data = Math.round(evt.target.duration * 1000); + break; + + case 'resize': + data = evt.target.videoWidth + '/' + evt.target.videoHeight; + break; + + case 'loadedmetadata': + case 'loadeddata': + case 'canplay': + case 'canplaythrough': + case 'ended': + case 'seeking': + case 'seeked': + case 'play': + case 'playing': + lastStartPosition = evt.target.currentTime; + + case 'pause': + case 'waiting': + case 'stalled': + case 'error': + data = Math.round(evt.target.currentTime * 1000); + + if (evt.type === 'error') { + var errorTxt; + var mediaError = evt.currentTarget.error; + + switch (mediaError.code) { + case mediaError.MEDIA_ERR_ABORTED: + errorTxt = 'You aborted the video playback'; + break; + + case mediaError.MEDIA_ERR_DECODE: + errorTxt = 'The video playback was aborted due to a corruption problem or because the video used features your browser did not support'; + handleMediaError(); + break; + + case mediaError.MEDIA_ERR_NETWORK: + errorTxt = 'A network error caused the video download to fail part-way'; + break; + + case mediaError.MEDIA_ERR_SRC_NOT_SUPPORTED: + errorTxt = 'The video could not be loaded, either because the server or network failed or because the format is not supported'; + break; + } + + if (mediaError.message) { + errorTxt += ' - ' + mediaError.message; + } + + logStatus(errorTxt); + console.error(errorTxt); + } + + break; + + default: + break; + } + + var event = { + time: performance.now() - events.t0, + type: evt.type, + name: data + }; + events.video.push(event); + + if (evt.type === 'seeking') { + lastSeekingIdx = events.video.length - 1; + } + + if (evt.type === 'seeked') { + events.video[lastSeekingIdx].duration = event.time - events.video[lastSeekingIdx].time; + } + + trimEventHistory(); +} + +function handleLevelError(data) { + var levelObj = data.context || data; + hls.removeLevel(levelObj.level, levelObj.urlId || 0); + + if (!hls.levels.length) { + logError('All levels have been removed'); + hls.destroy(); + return; + } // Trigger an immediate downswitch to the first level + // This is to handle the case where we start at an empty level, where switching to auto causes hlsjs to stall + + + hls.currentLevel = 0; // Set the quality back to auto so that we return to optimal quality + + hls.currentLevel = -1; +} + +function handleMediaError() { + if (autoRecoverError) { + var now = performance.now(); + + if (!window.recoverDecodingErrorDate || now - window.recoverDecodingErrorDate > 3000) { + window.recoverDecodingErrorDate = performance.now(); + $('#statusOut').append(', trying to recover media error.'); + hls.recoverMediaError(); + } else { + if (!window.recoverSwapAudioCodecDate || now - window.recoverSwapAudioCodecDate > 3000) { + window.recoverSwapAudioCodecDate = performance.now(); + $('#statusOut').append(', trying to swap audio codec and recover media error.'); + hls.swapAudioCodec(); + hls.recoverMediaError(); + } else { + $('#statusOut').append(', cannot recover. Last media error recovery failed.'); + } + } + } +} + +function timeRangesToString(r) { + var log = ''; + + for (var i = 0; i < r.length; i++) { + log += '[' + r.start(i) + ', ' + r.end(i) + ']'; + log += ' '; + } + + return log; +} + +function checkBuffer() { + var v = $('#video')[0]; + var canvas = $('#bufferedCanvas')[0]; + var ctx = canvas.getContext('2d'); + var r = v.buffered; + var bufferingDuration; + ctx.fillStyle = 'black'; + ctx.fillRect(0, 0, canvas.width, canvas.height); + ctx.fillStyle = 'gray'; + + if (r) { + if (!canvas.width || canvas.width !== v.clientWidth) { + canvas.width = v.clientWidth; + } + + var pos = v.currentTime; + var bufferLen = 0; + + for (var i = 0; i < r.length; i++) { + var start = r.start(i) / v.duration * canvas.width; + var end = r.end(i) / v.duration * canvas.width; + ctx.fillRect(start, 3, Math.max(2, end - start), 10); + + if (pos >= r.start(i) && pos < r.end(i)) { + // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length + bufferLen = r.end(i) - pos; + } + } // check if we are in buffering / or playback ended state + + + if (bufferLen <= 0.1 && v.paused === false && pos - lastStartPosition > 0.5) { + // don't create buffering event if we are at the end of the playlist, don't report ended for live playlist + if (lastDuration - pos <= 0.5 && events.isLive === false) {} else { + // we are not at the end of the playlist ... real buffering + if (bufferingIdx !== -1) { + bufferingDuration = performance.now() - events.t0 - events.video[bufferingIdx].time; + events.video[bufferingIdx].duration = bufferingDuration; + events.video[bufferingIdx].name = bufferingDuration; + } else { + events.video.push({ + type: 'buffering', + time: performance.now() - events.t0 + }); + trimEventHistory(); // we are in buffering state + + bufferingIdx = events.video.length - 1; + } + } + } + + if (bufferLen > 0.1 && bufferingIdx !== -1) { + bufferingDuration = performance.now() - events.t0 - events.video[bufferingIdx].time; + events.video[bufferingIdx].duration = bufferingDuration; + events.video[bufferingIdx].name = bufferingDuration; // we are out of buffering state + + bufferingIdx = -1; + } // update buffer/position for current Time + + + var event = { + time: performance.now() - events.t0, + buffer: Math.round(bufferLen * 1000), + pos: Math.round(pos * 1000) + }; + var bufEvents = events.buffer; + var bufEventLen = bufEvents.length; + + if (bufEventLen > 1) { + var event0 = bufEvents[bufEventLen - 2]; + var event1 = bufEvents[bufEventLen - 1]; + var slopeBuf0 = (event0.buffer - event1.buffer) / (event0.time - event1.time); + var slopeBuf1 = (event1.buffer - event.buffer) / (event1.time - event.time); + var slopePos0 = (event0.pos - event1.pos) / (event0.time - event1.time); + var slopePos1 = (event1.pos - event.pos) / (event1.time - event.time); // compute slopes. if less than 30% difference, remove event1 + + if ((slopeBuf0 === slopeBuf1 || Math.abs(slopeBuf0 / slopeBuf1 - 1) <= 0.3) && (slopePos0 === slopePos1 || Math.abs(slopePos0 / slopePos1 - 1) <= 0.3)) { + bufEvents.pop(); + } + } + + events.buffer.push(event); + trimEventHistory(); + window.refreshCanvas(); + var log = 'Duration: ' + v.duration + '\n' + 'Buffered: ' + timeRangesToString(v.buffered) + '\n' + 'Seekable: ' + timeRangesToString(v.seekable) + '\n' + 'Played: ' + timeRangesToString(v.played) + '\n'; + + if (hls.media) { + for (var type in tracks) { + log += 'Buffer for ' + type + ' contains: ' + timeRangesToString(tracks[type].buffer.buffered) + '\n'; + } + + var videoPlaybackQuality = v.getVideoPlaybackQuality; + + if (videoPlaybackQuality && typeof videoPlaybackQuality === typeof Function) { + log += 'Dropped frames: ' + v.getVideoPlaybackQuality().droppedVideoFrames + '\n'; + log += 'Corrupted frames:' + v.getVideoPlaybackQuality().corruptedVideoFrames + '\n'; + } else if (v.webkitDroppedFrameCount) { + log += 'Dropped frames:' + v.webkitDroppedFrameCount + '\n'; + } + } + + $('#bufferedOut').text(log); + $('#statisticsOut').text(JSON.stringify(sortObject(main_stats), null, '\t')); + ctx.fillStyle = 'blue'; + var x = v.currentTime / v.duration * canvas.width; + ctx.fillRect(x, 0, 2, 15); + } +} + +function showCanvas() { + window.showMetrics(); + $('#bufferedOut').show(); + $('#bufferedCanvas').show(); +} + +function hideCanvas() { + window.hideMetrics(); + $('#bufferedOut').hide(); + $('#bufferedCanvas').hide(); +} + +function getMetrics() { + var json = JSON.stringify(events); + var jsonpacked = window.jsonpack.pack(json); // console.log('packing JSON from ' + json.length + ' to ' + jsonpacked.length + ' bytes'); + + return btoa(jsonpacked); +} + +function copyMetricsToClipBoard() { + copyTextToClipboard(getMetrics()); +} + +function goToMetrics() { + var url = document.URL; + url = url.substr(0, url.lastIndexOf('/') + 1) + 'metrics.html'; + window.open(url, '_blank'); +} + +function goToMetricsPermaLink() { + var url = document.URL; + var b64 = getMetrics(); + url = url.substr(0, url.lastIndexOf('/') + 1) + 'metrics.html#data=' + b64; + window.open(url, '_blank'); +} + +function minsecs(ts) { + var m = Math.floor(Math.floor(ts % 3600) / 60); + var s = Math.floor(ts % 60); + return m + ':' + (s < 10 ? '0' : '') + s; +} + +function onClickBufferedRange(event) { + var canvas = $('#bufferedCanvas')[0]; + var v = $('#video')[0]; + var target = (event.clientX - canvas.offsetLeft) / canvas.width * v.duration; + v.currentTime = target; +} + +function updateLevelInfo() { + if (!hls.levels) { + return; + } + + var button_template = ''; + html2 += button_template; + + if (hls.loadLevel === i) { + html2 += button_enabled; + } else { + html2 += button_disabled; + } + + html2 += 'onclick="hls.loadLevel=' + i + '">' + levelName + ''; + html3 += button_template; + + if (hls.autoLevelCapping === i) { + html3 += button_enabled; + } else { + html3 += button_disabled; + } + + html3 += 'onclick="levelCapping=hls.autoLevelCapping=' + i + ';updateLevelInfo();onDemoConfigChanged();">' + levelName + ''; + html4 += button_template; + + if (hls.nextLevel === i) { + html4 += button_enabled; + } else { + html4 += button_disabled; + } + + html4 += 'onclick="hls.nextLevel=' + i + '">' + levelName + ''; + } + + var v = $('#video')[0]; + + if (v.videoWidth && v.videoHeight) { + $('#currentResolution').html(v.videoWidth + ' x ' + v.videoHeight); + } + + if ($('#currentLevelControl').html() !== html1) { + $('#currentLevelControl').html(html1); + } + + if ($('#loadLevelControl').html() !== html2) { + $('#loadLevelControl').html(html2); + } + + if ($('#levelCappingControl').html() !== html3) { + $('#levelCappingControl').html(html3); + } + + if ($('#nextLevelControl').html() !== html4) { + $('#nextLevelControl').html(html4); + } +} + +function updateAudioTrackInfo() { + var button_template = ''; + } + + $('#audioTrackControl').html(html1); +} + +function level2label(index) { + if (hls && hls.levels.length - 1 >= index) { + var level = hls.levels[index]; + + if (level.name) { + return level.name; + } else { + if (level.height) { + return level.height + 'p / ' + Math.round(level.bitrate / 1024) + 'kb'; + } else { + if (level.bitrate) { + return Math.round(level.bitrate / 1024) + 'kb'; + } else { + return null; + } + } + } + } +} + +function getDemoConfigPropOrDefault(propName, defaultVal) { + return typeof demoConfig[propName] !== 'undefined' ? demoConfig[propName] : defaultVal; +} + +function getURLParam(sParam, defaultValue) { + var sPageURL = window.location.search.substring(1); + var sURLVariables = sPageURL.split('&'); + + for (var i = 0; i < sURLVariables.length; i++) { + var sParameterName = sURLVariables[i].split('='); + + if (sParameterName[0] === sParam) { + return sParameterName[1] === 'undefined' ? undefined : sParameterName[1] === 'false' ? false : sParameterName[1]; + } + } + + return defaultValue; +} + +function onDemoConfigChanged() { + demoConfig = { + enableStreaming: enableStreaming, + autoRecoverError: autoRecoverError, + dumpfMP4: dumpfMP4, + levelCapping: levelCapping, + limitMetrics: limitMetrics + }; + + if (configPersistenceEnabled) { + persistEditorValue(); + } + + var serializedDemoConfig = btoa(JSON.stringify(demoConfig)); + var baseURL = document.URL.split('?')[0]; + var streamURL = $('#streamURL').val(); + var permalinkURL = baseURL + "?src=" + encodeURIComponent(streamURL) + "&demoConfig=" + serializedDemoConfig; + $('#StreamPermalink').html("" + permalinkURL + ""); +} + +function onConfigPersistenceChanged(event) { + configPersistenceEnabled = event.target.checked; + localStorage.setItem(STORAGE_KEYS.Editor_Persistence, JSON.stringify(configPersistenceEnabled)); + + if (configPersistenceEnabled) { + persistEditorValue(); + } else { + localStorage.removeItem(STORAGE_KEYS.Hls_Config); + } +} + +function getEditorValue(options) { + options = $.extend({ + parse: false + }, options || {}); + var value = configEditor.session.getValue(); + + if (options.parse) { + try { + value = JSON.parse(value); + } catch (e) { + console.warn('[getEditorValue] could not parse editor value', e); + value = {}; + } + } + + return value; +} + +function getPersistedHlsConfig() { + var value = localStorage.getItem(STORAGE_KEYS.Hls_Config); + + if (value === null) { + return value; + } + + try { + value = JSON.parse(value); + } catch (e) { + console.warn('[getPersistedHlsConfig] could not hls config json', e); + value = {}; + } + + return value; +} + +function persistEditorValue() { + localStorage.setItem(STORAGE_KEYS.Hls_Config, getEditorValue()); +} + +function setupConfigEditor() { + configEditor = window.ace.edit('config-editor'); + configEditor.setTheme('ace/theme/github'); + configEditor.session.setMode('ace/mode/json'); + var contents = hlsjsDefaults; + var shouldRestorePersisted = JSON.parse(localStorage.getItem(STORAGE_KEYS.Editor_Persistence)) === true; + + if (shouldRestorePersisted) { + $.extend(contents, getPersistedHlsConfig()); + } + + var elPersistence = document.querySelector('#config-persistence'); + elPersistence.addEventListener('change', onConfigPersistenceChanged); + elPersistence.checked = shouldRestorePersisted; + configPersistenceEnabled = shouldRestorePersisted; + updateConfigEditorValue(contents); +} + +function setupTimelineChart() { + var canvas = document.querySelector('#timeline-chart'); + var chart = new timeline_chart_TimelineChart(canvas, { + responsive: false + }); + + self.onresize = function () { + return chart.resize(); + }; + + if (self.screen && self.screen.orientation) { + self.screen.orientation.addEventListener('change', self.onresize); + } + + chart.resize(); + return chart; +} + +function addChartEventListeners(hls) { + var updateLevelOrTrack = function updateLevelOrTrack(eventName, data) { + main_chart.updateLevelOrTrack(data.details); + }; + + var updateFragment = function updateFragment(eventName, data) { + if (data.stats) { + // Convert 0.x stats to partial v1 stats + var _data$stats = data.stats, + retry = _data$stats.retry, + loaded = _data$stats.loaded, + total = _data$stats.total, + trequest = _data$stats.trequest, + tfirst = _data$stats.tfirst, + tload = _data$stats.tload; + data.frag.stats = { + loaded: loaded, + retry: retry, + total: total, + loading: { + start: trequest, + first: tfirst, + end: tload + } + }; + } + + main_chart.updateFragment(data); + }; + + var updateChart = function updateChart() { + main_chart.update(); + }; + + hls.on(Hls.Events.MANIFEST_LOADING, function () { + main_chart.reset(); + }, main_chart); + hls.on(Hls.Events.MANIFEST_LOADED, function (eventName, data) { + var levels = data.levels, + audioTracks = data.audioTracks, + _data$subtitles = data.subtitles, + subtitles = _data$subtitles === void 0 ? [] : _data$subtitles; + main_chart.removeType('level'); + main_chart.removeType('audioTrack'); + main_chart.removeType('subtitleTrack'); + main_chart.updateLevels(levels); + main_chart.updateAudioTracks(audioTracks); + main_chart.updateSubtitleTracks(subtitles); + }, main_chart); + hls.on(Hls.Events.BUFFER_CREATED, function (eventName, _ref) { + var tracks = _ref.tracks; + main_chart.updateSourceBuffers(tracks, hls.media); + }, main_chart); + hls.on(Hls.Events.LEVELS_UPDATED, function (eventName, _ref2) { + var levels = _ref2.levels; + main_chart.removeType('level'); + main_chart.updateLevels(levels); + }); + hls.on(Hls.Events.LEVEL_SWITCHED, function (eventName, _ref3) { + var level = _ref3.level; + // TODO: mutate level datasets + // Update currentLevel + main_chart.removeType('level'); + main_chart.updateLevels(hls.levels, level); + }, main_chart); + hls.on(Hls.Events.LEVEL_LOADING, function () { + // TODO: mutate level datasets + // Update loadLevel + main_chart.removeType('level'); + main_chart.updateLevels(hls.levels); + }, main_chart); + hls.on(Hls.Events.FRAG_LOADING, function () { + // TODO: mutate level datasets + // Update loadLevel + main_chart.removeType('level'); + main_chart.updateLevels(hls.levels); + }, main_chart); + hls.on(Hls.Events.LEVEL_UPDATED, function (eventName, _ref4) { + var details = _ref4.details; + main_chart.updateLevelOrTrack(details); + }, main_chart); + hls.on(Hls.Events.AUDIO_TRACKS_UPDATED, function (eventName, _ref5) { + var audioTracks = _ref5.audioTracks; + main_chart.removeType('audioTrack'); + main_chart.updateAudioTracks(audioTracks); + }, main_chart); + hls.on(Hls.Events.SUBTITLE_TRACKS_UPDATED, function (eventName, _ref6) { + var subtitleTracks = _ref6.subtitleTracks; + main_chart.removeType('subtitleTrack'); + main_chart.updateSubtitleTracks(subtitleTracks); + }, main_chart); + hls.on(Hls.Events.AUDIO_TRACK_SWITCHED, function (eventName) { + // TODO: mutate level datasets + main_chart.removeType('audioTrack'); + main_chart.updateAudioTracks(hls.audioTracks); + }, main_chart); + hls.on(Hls.Events.SUBTITLE_TRACK_SWITCH, function (eventName) { + // TODO: mutate level datasets + main_chart.removeType('subtitleTrack'); + main_chart.updateSubtitleTracks(hls.subtitleTracks); + }, main_chart); + hls.on(Hls.Events.AUDIO_TRACK_LOADED, updateLevelOrTrack, main_chart); + hls.on(Hls.Events.SUBTITLE_TRACK_LOADED, updateLevelOrTrack, main_chart); + hls.on(Hls.Events.LEVEL_PTS_UPDATED, updateLevelOrTrack, main_chart); + hls.on(Hls.Events.FRAG_LOADED, updateFragment, main_chart); + hls.on(Hls.Events.FRAG_PARSED, updateFragment, main_chart); + hls.on(Hls.Events.FRAG_CHANGED, updateFragment, main_chart); + hls.on(Hls.Events.BUFFER_APPENDING, updateChart, main_chart); + hls.on(Hls.Events.BUFFER_APPENDED, updateChart, main_chart); + hls.on(Hls.Events.BUFFER_FLUSHED, updateChart, main_chart); +} + +function updateConfigEditorValue(obj) { + var json = JSON.stringify(obj, null, 2); + configEditor.session.setValue(json); +} + +function applyConfigEditorValue() { + onDemoConfigChanged(); + loadSelectedStream(); +} + +function createfMP4(type) { + if (fmp4Data[type].length) { + var blob = new Blob([arrayConcat(fmp4Data[type])], { + type: 'application/octet-stream' + }); + var filename = type + '-' + new Date().toISOString() + '.mp4'; + window.saveAs(blob, filename); // $('body').append('Download ' + filename + ' track
'); + } +} + +function arrayConcat(inputArray) { + var totalLength = inputArray.reduce(function (prev, cur) { + return prev + cur.length; + }, 0); + var result = new Uint8Array(totalLength); + var offset = 0; + inputArray.forEach(function (element) { + result.set(element, offset); + offset += element.length; + }); + return result; +} + +function hideAllTabs() { + $('#timelineTab').hide(); + $('#playbackControlTab').hide(); + $('#qualityLevelControlTab').hide(); + $('#audioTrackControlTab').hide(); + $('#metricsDisplayTab').hide(); + $('#statsDisplayTab').hide(); +} + +function toggleTab(tabElId) { + hideAllTabs(); + window.hideMetrics(); + $('#' + tabElId).show(); + + if (hls) { + if (tabElId === 'timelineTab') { + main_chart.show(); + main_chart.resize(main_chart.chart.data ? main_chart.chart.data.datasets : null); + } else { + main_chart.hide(); + } + } +} + +function appendLog(textElId, message) { + var el = $('#' + textElId); + var logText = el.text(); + + if (logText.length) { + logText += '\n'; + } + + var timestamp = (Date.now() - startTime) / 1000; + var newMessage = timestamp + ' | ' + message; + logText += newMessage; // update + + el.text(logText); +} + +function logStatus(message) { + appendLog('statusOut', message); +} + +function logError(message) { + appendLog('errorOut', message); +} + +/***/ }), + +/***/ "./node_modules/chart.js/dist/Chart.js": +/*!*********************************************!*\ + !*** ./node_modules/chart.js/dist/Chart.js ***! + \*********************************************/ +/*! no static exports found */ +/*! ModuleConcatenation bailout: Module is not an ECMAScript module */ +/***/ (function(module, exports, __webpack_require__) { + +/*! + * Chart.js v2.9.3 + * https://www.chartjs.org + * (c) 2019 Chart.js Contributors + * Released under the MIT License + */ +(function (global, factory) { + true ? module.exports = factory(function() { try { return __webpack_require__(/*! moment */ "./node_modules/moment/moment.js"); } catch(e) { } }()) : +undefined; +}(this, (function (moment) { 'use strict'; + +moment = moment && moment.hasOwnProperty('default') ? moment['default'] : moment; + +function createCommonjsModule(fn, module) { + return module = { exports: {} }, fn(module, module.exports), module.exports; +} + +function getCjsExportFromNamespace (n) { + return n && n['default'] || n; +} + +var colorName = { + "aliceblue": [240, 248, 255], + "antiquewhite": [250, 235, 215], + "aqua": [0, 255, 255], + "aquamarine": [127, 255, 212], + "azure": [240, 255, 255], + "beige": [245, 245, 220], + "bisque": [255, 228, 196], + "black": [0, 0, 0], + "blanchedalmond": [255, 235, 205], + "blue": [0, 0, 255], + "blueviolet": [138, 43, 226], + "brown": [165, 42, 42], + "burlywood": [222, 184, 135], + "cadetblue": [95, 158, 160], + "chartreuse": [127, 255, 0], + "chocolate": [210, 105, 30], + "coral": [255, 127, 80], + "cornflowerblue": [100, 149, 237], + "cornsilk": [255, 248, 220], + "crimson": [220, 20, 60], + "cyan": [0, 255, 255], + "darkblue": [0, 0, 139], + "darkcyan": [0, 139, 139], + "darkgoldenrod": [184, 134, 11], + "darkgray": [169, 169, 169], + "darkgreen": [0, 100, 0], + "darkgrey": [169, 169, 169], + "darkkhaki": [189, 183, 107], + "darkmagenta": [139, 0, 139], + "darkolivegreen": [85, 107, 47], + "darkorange": [255, 140, 0], + "darkorchid": [153, 50, 204], + "darkred": [139, 0, 0], + "darksalmon": [233, 150, 122], + "darkseagreen": [143, 188, 143], + "darkslateblue": [72, 61, 139], + "darkslategray": [47, 79, 79], + "darkslategrey": [47, 79, 79], + "darkturquoise": [0, 206, 209], + "darkviolet": [148, 0, 211], + "deeppink": [255, 20, 147], + "deepskyblue": [0, 191, 255], + "dimgray": [105, 105, 105], + "dimgrey": [105, 105, 105], + "dodgerblue": [30, 144, 255], + "firebrick": [178, 34, 34], + "floralwhite": [255, 250, 240], + "forestgreen": [34, 139, 34], + "fuchsia": [255, 0, 255], + "gainsboro": [220, 220, 220], + "ghostwhite": [248, 248, 255], + "gold": [255, 215, 0], + "goldenrod": [218, 165, 32], + "gray": [128, 128, 128], + "green": [0, 128, 0], + "greenyellow": [173, 255, 47], + "grey": [128, 128, 128], + "honeydew": [240, 255, 240], + "hotpink": [255, 105, 180], + "indianred": [205, 92, 92], + "indigo": [75, 0, 130], + "ivory": [255, 255, 240], + "khaki": [240, 230, 140], + "lavender": [230, 230, 250], + "lavenderblush": [255, 240, 245], + "lawngreen": [124, 252, 0], + "lemonchiffon": [255, 250, 205], + "lightblue": [173, 216, 230], + "lightcoral": [240, 128, 128], + "lightcyan": [224, 255, 255], + "lightgoldenrodyellow": [250, 250, 210], + "lightgray": [211, 211, 211], + "lightgreen": [144, 238, 144], + "lightgrey": [211, 211, 211], + "lightpink": [255, 182, 193], + "lightsalmon": [255, 160, 122], + "lightseagreen": [32, 178, 170], + "lightskyblue": [135, 206, 250], + "lightslategray": [119, 136, 153], + "lightslategrey": [119, 136, 153], + "lightsteelblue": [176, 196, 222], + "lightyellow": [255, 255, 224], + "lime": [0, 255, 0], + "limegreen": [50, 205, 50], + "linen": [250, 240, 230], + "magenta": [255, 0, 255], + "maroon": [128, 0, 0], + "mediumaquamarine": [102, 205, 170], + "mediumblue": [0, 0, 205], + "mediumorchid": [186, 85, 211], + "mediumpurple": [147, 112, 219], + "mediumseagreen": [60, 179, 113], + "mediumslateblue": [123, 104, 238], + "mediumspringgreen": [0, 250, 154], + "mediumturquoise": [72, 209, 204], + "mediumvioletred": [199, 21, 133], + "midnightblue": [25, 25, 112], + "mintcream": [245, 255, 250], + "mistyrose": [255, 228, 225], + "moccasin": [255, 228, 181], + "navajowhite": [255, 222, 173], + "navy": [0, 0, 128], + "oldlace": [253, 245, 230], + "olive": [128, 128, 0], + "olivedrab": [107, 142, 35], + "orange": [255, 165, 0], + "orangered": [255, 69, 0], + "orchid": [218, 112, 214], + "palegoldenrod": [238, 232, 170], + "palegreen": [152, 251, 152], + "paleturquoise": [175, 238, 238], + "palevioletred": [219, 112, 147], + "papayawhip": [255, 239, 213], + "peachpuff": [255, 218, 185], + "peru": [205, 133, 63], + "pink": [255, 192, 203], + "plum": [221, 160, 221], + "powderblue": [176, 224, 230], + "purple": [128, 0, 128], + "rebeccapurple": [102, 51, 153], + "red": [255, 0, 0], + "rosybrown": [188, 143, 143], + "royalblue": [65, 105, 225], + "saddlebrown": [139, 69, 19], + "salmon": [250, 128, 114], + "sandybrown": [244, 164, 96], + "seagreen": [46, 139, 87], + "seashell": [255, 245, 238], + "sienna": [160, 82, 45], + "silver": [192, 192, 192], + "skyblue": [135, 206, 235], + "slateblue": [106, 90, 205], + "slategray": [112, 128, 144], + "slategrey": [112, 128, 144], + "snow": [255, 250, 250], + "springgreen": [0, 255, 127], + "steelblue": [70, 130, 180], + "tan": [210, 180, 140], + "teal": [0, 128, 128], + "thistle": [216, 191, 216], + "tomato": [255, 99, 71], + "turquoise": [64, 224, 208], + "violet": [238, 130, 238], + "wheat": [245, 222, 179], + "white": [255, 255, 255], + "whitesmoke": [245, 245, 245], + "yellow": [255, 255, 0], + "yellowgreen": [154, 205, 50] +}; + +var conversions = createCommonjsModule(function (module) { +/* MIT license */ + + +// NOTE: conversions should only return primitive values (i.e. arrays, or +// values that give correct `typeof` results). +// do not use box values types (i.e. Number(), String(), etc.) + +var reverseKeywords = {}; +for (var key in colorName) { + if (colorName.hasOwnProperty(key)) { + reverseKeywords[colorName[key]] = key; + } +} + +var convert = module.exports = { + rgb: {channels: 3, labels: 'rgb'}, + hsl: {channels: 3, labels: 'hsl'}, + hsv: {channels: 3, labels: 'hsv'}, + hwb: {channels: 3, labels: 'hwb'}, + cmyk: {channels: 4, labels: 'cmyk'}, + xyz: {channels: 3, labels: 'xyz'}, + lab: {channels: 3, labels: 'lab'}, + lch: {channels: 3, labels: 'lch'}, + hex: {channels: 1, labels: ['hex']}, + keyword: {channels: 1, labels: ['keyword']}, + ansi16: {channels: 1, labels: ['ansi16']}, + ansi256: {channels: 1, labels: ['ansi256']}, + hcg: {channels: 3, labels: ['h', 'c', 'g']}, + apple: {channels: 3, labels: ['r16', 'g16', 'b16']}, + gray: {channels: 1, labels: ['gray']} +}; + +// hide .channels and .labels properties +for (var model in convert) { + if (convert.hasOwnProperty(model)) { + if (!('channels' in convert[model])) { + throw new Error('missing channels property: ' + model); + } + + if (!('labels' in convert[model])) { + throw new Error('missing channel labels property: ' + model); + } + + if (convert[model].labels.length !== convert[model].channels) { + throw new Error('channel and label counts mismatch: ' + model); + } + + var channels = convert[model].channels; + var labels = convert[model].labels; + delete convert[model].channels; + delete convert[model].labels; + Object.defineProperty(convert[model], 'channels', {value: channels}); + Object.defineProperty(convert[model], 'labels', {value: labels}); + } +} + +convert.rgb.hsl = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var min = Math.min(r, g, b); + var max = Math.max(r, g, b); + var delta = max - min; + var h; + var s; + var l; + + if (max === min) { + h = 0; + } else if (r === max) { + h = (g - b) / delta; + } else if (g === max) { + h = 2 + (b - r) / delta; + } else if (b === max) { + h = 4 + (r - g) / delta; + } + + h = Math.min(h * 60, 360); + + if (h < 0) { + h += 360; + } + + l = (min + max) / 2; + + if (max === min) { + s = 0; + } else if (l <= 0.5) { + s = delta / (max + min); + } else { + s = delta / (2 - max - min); + } + + return [h, s * 100, l * 100]; +}; + +convert.rgb.hsv = function (rgb) { + var rdif; + var gdif; + var bdif; + var h; + var s; + + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var v = Math.max(r, g, b); + var diff = v - Math.min(r, g, b); + var diffc = function (c) { + return (v - c) / 6 / diff + 1 / 2; + }; + + if (diff === 0) { + h = s = 0; + } else { + s = diff / v; + rdif = diffc(r); + gdif = diffc(g); + bdif = diffc(b); + + if (r === v) { + h = bdif - gdif; + } else if (g === v) { + h = (1 / 3) + rdif - bdif; + } else if (b === v) { + h = (2 / 3) + gdif - rdif; + } + if (h < 0) { + h += 1; + } else if (h > 1) { + h -= 1; + } + } + + return [ + h * 360, + s * 100, + v * 100 + ]; +}; + +convert.rgb.hwb = function (rgb) { + var r = rgb[0]; + var g = rgb[1]; + var b = rgb[2]; + var h = convert.rgb.hsl(rgb)[0]; + var w = 1 / 255 * Math.min(r, Math.min(g, b)); + + b = 1 - 1 / 255 * Math.max(r, Math.max(g, b)); + + return [h, w * 100, b * 100]; +}; + +convert.rgb.cmyk = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var c; + var m; + var y; + var k; + + k = Math.min(1 - r, 1 - g, 1 - b); + c = (1 - r - k) / (1 - k) || 0; + m = (1 - g - k) / (1 - k) || 0; + y = (1 - b - k) / (1 - k) || 0; + + return [c * 100, m * 100, y * 100, k * 100]; +}; + +/** + * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance + * */ +function comparativeDistance(x, y) { + return ( + Math.pow(x[0] - y[0], 2) + + Math.pow(x[1] - y[1], 2) + + Math.pow(x[2] - y[2], 2) + ); +} + +convert.rgb.keyword = function (rgb) { + var reversed = reverseKeywords[rgb]; + if (reversed) { + return reversed; + } + + var currentClosestDistance = Infinity; + var currentClosestKeyword; + + for (var keyword in colorName) { + if (colorName.hasOwnProperty(keyword)) { + var value = colorName[keyword]; + + // Compute comparative distance + var distance = comparativeDistance(rgb, value); + + // Check if its less, if so set as closest + if (distance < currentClosestDistance) { + currentClosestDistance = distance; + currentClosestKeyword = keyword; + } + } + } + + return currentClosestKeyword; +}; + +convert.keyword.rgb = function (keyword) { + return colorName[keyword]; +}; + +convert.rgb.xyz = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + + // assume sRGB + r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92); + g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92); + b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92); + + var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805); + var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722); + var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505); + + return [x * 100, y * 100, z * 100]; +}; + +convert.rgb.lab = function (rgb) { + var xyz = convert.rgb.xyz(rgb); + var x = xyz[0]; + var y = xyz[1]; + var z = xyz[2]; + var l; + var a; + var b; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116); + + l = (116 * y) - 16; + a = 500 * (x - y); + b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.hsl.rgb = function (hsl) { + var h = hsl[0] / 360; + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var t1; + var t2; + var t3; + var rgb; + var val; + + if (s === 0) { + val = l * 255; + return [val, val, val]; + } + + if (l < 0.5) { + t2 = l * (1 + s); + } else { + t2 = l + s - l * s; + } + + t1 = 2 * l - t2; + + rgb = [0, 0, 0]; + for (var i = 0; i < 3; i++) { + t3 = h + 1 / 3 * -(i - 1); + if (t3 < 0) { + t3++; + } + if (t3 > 1) { + t3--; + } + + if (6 * t3 < 1) { + val = t1 + (t2 - t1) * 6 * t3; + } else if (2 * t3 < 1) { + val = t2; + } else if (3 * t3 < 2) { + val = t1 + (t2 - t1) * (2 / 3 - t3) * 6; + } else { + val = t1; + } + + rgb[i] = val * 255; + } + + return rgb; +}; + +convert.hsl.hsv = function (hsl) { + var h = hsl[0]; + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var smin = s; + var lmin = Math.max(l, 0.01); + var sv; + var v; + + l *= 2; + s *= (l <= 1) ? l : 2 - l; + smin *= lmin <= 1 ? lmin : 2 - lmin; + v = (l + s) / 2; + sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s); + + return [h, sv * 100, v * 100]; +}; + +convert.hsv.rgb = function (hsv) { + var h = hsv[0] / 60; + var s = hsv[1] / 100; + var v = hsv[2] / 100; + var hi = Math.floor(h) % 6; + + var f = h - Math.floor(h); + var p = 255 * v * (1 - s); + var q = 255 * v * (1 - (s * f)); + var t = 255 * v * (1 - (s * (1 - f))); + v *= 255; + + switch (hi) { + case 0: + return [v, t, p]; + case 1: + return [q, v, p]; + case 2: + return [p, v, t]; + case 3: + return [p, q, v]; + case 4: + return [t, p, v]; + case 5: + return [v, p, q]; + } +}; + +convert.hsv.hsl = function (hsv) { + var h = hsv[0]; + var s = hsv[1] / 100; + var v = hsv[2] / 100; + var vmin = Math.max(v, 0.01); + var lmin; + var sl; + var l; + + l = (2 - s) * v; + lmin = (2 - s) * vmin; + sl = s * vmin; + sl /= (lmin <= 1) ? lmin : 2 - lmin; + sl = sl || 0; + l /= 2; + + return [h, sl * 100, l * 100]; +}; + +// http://dev.w3.org/csswg/css-color/#hwb-to-rgb +convert.hwb.rgb = function (hwb) { + var h = hwb[0] / 360; + var wh = hwb[1] / 100; + var bl = hwb[2] / 100; + var ratio = wh + bl; + var i; + var v; + var f; + var n; + + // wh + bl cant be > 1 + if (ratio > 1) { + wh /= ratio; + bl /= ratio; + } + + i = Math.floor(6 * h); + v = 1 - bl; + f = 6 * h - i; + + if ((i & 0x01) !== 0) { + f = 1 - f; + } + + n = wh + f * (v - wh); // linear interpolation + + var r; + var g; + var b; + switch (i) { + default: + case 6: + case 0: r = v; g = n; b = wh; break; + case 1: r = n; g = v; b = wh; break; + case 2: r = wh; g = v; b = n; break; + case 3: r = wh; g = n; b = v; break; + case 4: r = n; g = wh; b = v; break; + case 5: r = v; g = wh; b = n; break; + } + + return [r * 255, g * 255, b * 255]; +}; + +convert.cmyk.rgb = function (cmyk) { + var c = cmyk[0] / 100; + var m = cmyk[1] / 100; + var y = cmyk[2] / 100; + var k = cmyk[3] / 100; + var r; + var g; + var b; + + r = 1 - Math.min(1, c * (1 - k) + k); + g = 1 - Math.min(1, m * (1 - k) + k); + b = 1 - Math.min(1, y * (1 - k) + k); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.rgb = function (xyz) { + var x = xyz[0] / 100; + var y = xyz[1] / 100; + var z = xyz[2] / 100; + var r; + var g; + var b; + + r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986); + g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415); + b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570); + + // assume sRGB + r = r > 0.0031308 + ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055) + : r * 12.92; + + g = g > 0.0031308 + ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055) + : g * 12.92; + + b = b > 0.0031308 + ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055) + : b * 12.92; + + r = Math.min(Math.max(0, r), 1); + g = Math.min(Math.max(0, g), 1); + b = Math.min(Math.max(0, b), 1); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.lab = function (xyz) { + var x = xyz[0]; + var y = xyz[1]; + var z = xyz[2]; + var l; + var a; + var b; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116); + + l = (116 * y) - 16; + a = 500 * (x - y); + b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.lab.xyz = function (lab) { + var l = lab[0]; + var a = lab[1]; + var b = lab[2]; + var x; + var y; + var z; + + y = (l + 16) / 116; + x = a / 500 + y; + z = y - b / 200; + + var y2 = Math.pow(y, 3); + var x2 = Math.pow(x, 3); + var z2 = Math.pow(z, 3); + y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787; + x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787; + z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787; + + x *= 95.047; + y *= 100; + z *= 108.883; + + return [x, y, z]; +}; + +convert.lab.lch = function (lab) { + var l = lab[0]; + var a = lab[1]; + var b = lab[2]; + var hr; + var h; + var c; + + hr = Math.atan2(b, a); + h = hr * 360 / 2 / Math.PI; + + if (h < 0) { + h += 360; + } + + c = Math.sqrt(a * a + b * b); + + return [l, c, h]; +}; + +convert.lch.lab = function (lch) { + var l = lch[0]; + var c = lch[1]; + var h = lch[2]; + var a; + var b; + var hr; + + hr = h / 360 * 2 * Math.PI; + a = c * Math.cos(hr); + b = c * Math.sin(hr); + + return [l, a, b]; +}; + +convert.rgb.ansi16 = function (args) { + var r = args[0]; + var g = args[1]; + var b = args[2]; + var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization + + value = Math.round(value / 50); + + if (value === 0) { + return 30; + } + + var ansi = 30 + + ((Math.round(b / 255) << 2) + | (Math.round(g / 255) << 1) + | Math.round(r / 255)); + + if (value === 2) { + ansi += 60; + } + + return ansi; +}; + +convert.hsv.ansi16 = function (args) { + // optimization here; we already know the value and don't need to get + // it converted for us. + return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]); +}; + +convert.rgb.ansi256 = function (args) { + var r = args[0]; + var g = args[1]; + var b = args[2]; + + // we use the extended greyscale palette here, with the exception of + // black and white. normal palette only has 4 greyscale shades. + if (r === g && g === b) { + if (r < 8) { + return 16; + } + + if (r > 248) { + return 231; + } + + return Math.round(((r - 8) / 247) * 24) + 232; + } + + var ansi = 16 + + (36 * Math.round(r / 255 * 5)) + + (6 * Math.round(g / 255 * 5)) + + Math.round(b / 255 * 5); + + return ansi; +}; + +convert.ansi16.rgb = function (args) { + var color = args % 10; + + // handle greyscale + if (color === 0 || color === 7) { + if (args > 50) { + color += 3.5; + } + + color = color / 10.5 * 255; + + return [color, color, color]; + } + + var mult = (~~(args > 50) + 1) * 0.5; + var r = ((color & 1) * mult) * 255; + var g = (((color >> 1) & 1) * mult) * 255; + var b = (((color >> 2) & 1) * mult) * 255; + + return [r, g, b]; +}; + +convert.ansi256.rgb = function (args) { + // handle greyscale + if (args >= 232) { + var c = (args - 232) * 10 + 8; + return [c, c, c]; + } + + args -= 16; + + var rem; + var r = Math.floor(args / 36) / 5 * 255; + var g = Math.floor((rem = args % 36) / 6) / 5 * 255; + var b = (rem % 6) / 5 * 255; + + return [r, g, b]; +}; + +convert.rgb.hex = function (args) { + var integer = ((Math.round(args[0]) & 0xFF) << 16) + + ((Math.round(args[1]) & 0xFF) << 8) + + (Math.round(args[2]) & 0xFF); + + var string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.hex.rgb = function (args) { + var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i); + if (!match) { + return [0, 0, 0]; + } + + var colorString = match[0]; + + if (match[0].length === 3) { + colorString = colorString.split('').map(function (char) { + return char + char; + }).join(''); + } + + var integer = parseInt(colorString, 16); + var r = (integer >> 16) & 0xFF; + var g = (integer >> 8) & 0xFF; + var b = integer & 0xFF; + + return [r, g, b]; +}; + +convert.rgb.hcg = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var max = Math.max(Math.max(r, g), b); + var min = Math.min(Math.min(r, g), b); + var chroma = (max - min); + var grayscale; + var hue; + + if (chroma < 1) { + grayscale = min / (1 - chroma); + } else { + grayscale = 0; + } + + if (chroma <= 0) { + hue = 0; + } else + if (max === r) { + hue = ((g - b) / chroma) % 6; + } else + if (max === g) { + hue = 2 + (b - r) / chroma; + } else { + hue = 4 + (r - g) / chroma + 4; + } + + hue /= 6; + hue %= 1; + + return [hue * 360, chroma * 100, grayscale * 100]; +}; + +convert.hsl.hcg = function (hsl) { + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var c = 1; + var f = 0; + + if (l < 0.5) { + c = 2.0 * s * l; + } else { + c = 2.0 * s * (1.0 - l); + } + + if (c < 1.0) { + f = (l - 0.5 * c) / (1.0 - c); + } + + return [hsl[0], c * 100, f * 100]; +}; + +convert.hsv.hcg = function (hsv) { + var s = hsv[1] / 100; + var v = hsv[2] / 100; + + var c = s * v; + var f = 0; + + if (c < 1.0) { + f = (v - c) / (1 - c); + } + + return [hsv[0], c * 100, f * 100]; +}; + +convert.hcg.rgb = function (hcg) { + var h = hcg[0] / 360; + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + if (c === 0.0) { + return [g * 255, g * 255, g * 255]; + } + + var pure = [0, 0, 0]; + var hi = (h % 1) * 6; + var v = hi % 1; + var w = 1 - v; + var mg = 0; + + switch (Math.floor(hi)) { + case 0: + pure[0] = 1; pure[1] = v; pure[2] = 0; break; + case 1: + pure[0] = w; pure[1] = 1; pure[2] = 0; break; + case 2: + pure[0] = 0; pure[1] = 1; pure[2] = v; break; + case 3: + pure[0] = 0; pure[1] = w; pure[2] = 1; break; + case 4: + pure[0] = v; pure[1] = 0; pure[2] = 1; break; + default: + pure[0] = 1; pure[1] = 0; pure[2] = w; + } + + mg = (1.0 - c) * g; + + return [ + (c * pure[0] + mg) * 255, + (c * pure[1] + mg) * 255, + (c * pure[2] + mg) * 255 + ]; +}; + +convert.hcg.hsv = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + var v = c + g * (1.0 - c); + var f = 0; + + if (v > 0.0) { + f = c / v; + } + + return [hcg[0], f * 100, v * 100]; +}; + +convert.hcg.hsl = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + var l = g * (1.0 - c) + 0.5 * c; + var s = 0; + + if (l > 0.0 && l < 0.5) { + s = c / (2 * l); + } else + if (l >= 0.5 && l < 1.0) { + s = c / (2 * (1 - l)); + } + + return [hcg[0], s * 100, l * 100]; +}; + +convert.hcg.hwb = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + var v = c + g * (1.0 - c); + return [hcg[0], (v - c) * 100, (1 - v) * 100]; +}; + +convert.hwb.hcg = function (hwb) { + var w = hwb[1] / 100; + var b = hwb[2] / 100; + var v = 1 - b; + var c = v - w; + var g = 0; + + if (c < 1) { + g = (v - c) / (1 - c); + } + + return [hwb[0], c * 100, g * 100]; +}; + +convert.apple.rgb = function (apple) { + return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255]; +}; + +convert.rgb.apple = function (rgb) { + return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535]; +}; + +convert.gray.rgb = function (args) { + return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255]; +}; + +convert.gray.hsl = convert.gray.hsv = function (args) { + return [0, 0, args[0]]; +}; + +convert.gray.hwb = function (gray) { + return [0, 100, gray[0]]; +}; + +convert.gray.cmyk = function (gray) { + return [0, 0, 0, gray[0]]; +}; + +convert.gray.lab = function (gray) { + return [gray[0], 0, 0]; +}; + +convert.gray.hex = function (gray) { + var val = Math.round(gray[0] / 100 * 255) & 0xFF; + var integer = (val << 16) + (val << 8) + val; + + var string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.rgb.gray = function (rgb) { + var val = (rgb[0] + rgb[1] + rgb[2]) / 3; + return [val / 255 * 100]; +}; +}); +var conversions_1 = conversions.rgb; +var conversions_2 = conversions.hsl; +var conversions_3 = conversions.hsv; +var conversions_4 = conversions.hwb; +var conversions_5 = conversions.cmyk; +var conversions_6 = conversions.xyz; +var conversions_7 = conversions.lab; +var conversions_8 = conversions.lch; +var conversions_9 = conversions.hex; +var conversions_10 = conversions.keyword; +var conversions_11 = conversions.ansi16; +var conversions_12 = conversions.ansi256; +var conversions_13 = conversions.hcg; +var conversions_14 = conversions.apple; +var conversions_15 = conversions.gray; + +/* + this function routes a model to all other models. + + all functions that are routed have a property `.conversion` attached + to the returned synthetic function. This property is an array + of strings, each with the steps in between the 'from' and 'to' + color models (inclusive). + + conversions that are not possible simply are not included. +*/ + +function buildGraph() { + var graph = {}; + // https://jsperf.com/object-keys-vs-for-in-with-closure/3 + var models = Object.keys(conversions); + + for (var len = models.length, i = 0; i < len; i++) { + graph[models[i]] = { + // http://jsperf.com/1-vs-infinity + // micro-opt, but this is simple. + distance: -1, + parent: null + }; + } + + return graph; +} + +// https://en.wikipedia.org/wiki/Breadth-first_search +function deriveBFS(fromModel) { + var graph = buildGraph(); + var queue = [fromModel]; // unshift -> queue -> pop + + graph[fromModel].distance = 0; + + while (queue.length) { + var current = queue.pop(); + var adjacents = Object.keys(conversions[current]); + + for (var len = adjacents.length, i = 0; i < len; i++) { + var adjacent = adjacents[i]; + var node = graph[adjacent]; + + if (node.distance === -1) { + node.distance = graph[current].distance + 1; + node.parent = current; + queue.unshift(adjacent); + } + } + } + + return graph; +} + +function link(from, to) { + return function (args) { + return to(from(args)); + }; +} + +function wrapConversion(toModel, graph) { + var path = [graph[toModel].parent, toModel]; + var fn = conversions[graph[toModel].parent][toModel]; + + var cur = graph[toModel].parent; + while (graph[cur].parent) { + path.unshift(graph[cur].parent); + fn = link(conversions[graph[cur].parent][cur], fn); + cur = graph[cur].parent; + } + + fn.conversion = path; + return fn; +} + +var route = function (fromModel) { + var graph = deriveBFS(fromModel); + var conversion = {}; + + var models = Object.keys(graph); + for (var len = models.length, i = 0; i < len; i++) { + var toModel = models[i]; + var node = graph[toModel]; + + if (node.parent === null) { + // no possible conversion, or this node is the source model. + continue; + } + + conversion[toModel] = wrapConversion(toModel, graph); + } + + return conversion; +}; + +var convert = {}; + +var models = Object.keys(conversions); + +function wrapRaw(fn) { + var wrappedFn = function (args) { + if (args === undefined || args === null) { + return args; + } + + if (arguments.length > 1) { + args = Array.prototype.slice.call(arguments); + } + + return fn(args); + }; + + // preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +function wrapRounded(fn) { + var wrappedFn = function (args) { + if (args === undefined || args === null) { + return args; + } + + if (arguments.length > 1) { + args = Array.prototype.slice.call(arguments); + } + + var result = fn(args); + + // we're assuming the result is an array here. + // see notice in conversions.js; don't use box types + // in conversion functions. + if (typeof result === 'object') { + for (var len = result.length, i = 0; i < len; i++) { + result[i] = Math.round(result[i]); + } + } + + return result; + }; + + // preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +models.forEach(function (fromModel) { + convert[fromModel] = {}; + + Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels}); + Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels}); + + var routes = route(fromModel); + var routeModels = Object.keys(routes); + + routeModels.forEach(function (toModel) { + var fn = routes[toModel]; + + convert[fromModel][toModel] = wrapRounded(fn); + convert[fromModel][toModel].raw = wrapRaw(fn); + }); +}); + +var colorConvert = convert; + +var colorName$1 = { + "aliceblue": [240, 248, 255], + "antiquewhite": [250, 235, 215], + "aqua": [0, 255, 255], + "aquamarine": [127, 255, 212], + "azure": [240, 255, 255], + "beige": [245, 245, 220], + "bisque": [255, 228, 196], + "black": [0, 0, 0], + "blanchedalmond": [255, 235, 205], + "blue": [0, 0, 255], + "blueviolet": [138, 43, 226], + "brown": [165, 42, 42], + "burlywood": [222, 184, 135], + "cadetblue": [95, 158, 160], + "chartreuse": [127, 255, 0], + "chocolate": [210, 105, 30], + "coral": [255, 127, 80], + "cornflowerblue": [100, 149, 237], + "cornsilk": [255, 248, 220], + "crimson": [220, 20, 60], + "cyan": [0, 255, 255], + "darkblue": [0, 0, 139], + "darkcyan": [0, 139, 139], + "darkgoldenrod": [184, 134, 11], + "darkgray": [169, 169, 169], + "darkgreen": [0, 100, 0], + "darkgrey": [169, 169, 169], + "darkkhaki": [189, 183, 107], + "darkmagenta": [139, 0, 139], + "darkolivegreen": [85, 107, 47], + "darkorange": [255, 140, 0], + "darkorchid": [153, 50, 204], + "darkred": [139, 0, 0], + "darksalmon": [233, 150, 122], + "darkseagreen": [143, 188, 143], + "darkslateblue": [72, 61, 139], + "darkslategray": [47, 79, 79], + "darkslategrey": [47, 79, 79], + "darkturquoise": [0, 206, 209], + "darkviolet": [148, 0, 211], + "deeppink": [255, 20, 147], + "deepskyblue": [0, 191, 255], + "dimgray": [105, 105, 105], + "dimgrey": [105, 105, 105], + "dodgerblue": [30, 144, 255], + "firebrick": [178, 34, 34], + "floralwhite": [255, 250, 240], + "forestgreen": [34, 139, 34], + "fuchsia": [255, 0, 255], + "gainsboro": [220, 220, 220], + "ghostwhite": [248, 248, 255], + "gold": [255, 215, 0], + "goldenrod": [218, 165, 32], + "gray": [128, 128, 128], + "green": [0, 128, 0], + "greenyellow": [173, 255, 47], + "grey": [128, 128, 128], + "honeydew": [240, 255, 240], + "hotpink": [255, 105, 180], + "indianred": [205, 92, 92], + "indigo": [75, 0, 130], + "ivory": [255, 255, 240], + "khaki": [240, 230, 140], + "lavender": [230, 230, 250], + "lavenderblush": [255, 240, 245], + "lawngreen": [124, 252, 0], + "lemonchiffon": [255, 250, 205], + "lightblue": [173, 216, 230], + "lightcoral": [240, 128, 128], + "lightcyan": [224, 255, 255], + "lightgoldenrodyellow": [250, 250, 210], + "lightgray": [211, 211, 211], + "lightgreen": [144, 238, 144], + "lightgrey": [211, 211, 211], + "lightpink": [255, 182, 193], + "lightsalmon": [255, 160, 122], + "lightseagreen": [32, 178, 170], + "lightskyblue": [135, 206, 250], + "lightslategray": [119, 136, 153], + "lightslategrey": [119, 136, 153], + "lightsteelblue": [176, 196, 222], + "lightyellow": [255, 255, 224], + "lime": [0, 255, 0], + "limegreen": [50, 205, 50], + "linen": [250, 240, 230], + "magenta": [255, 0, 255], + "maroon": [128, 0, 0], + "mediumaquamarine": [102, 205, 170], + "mediumblue": [0, 0, 205], + "mediumorchid": [186, 85, 211], + "mediumpurple": [147, 112, 219], + "mediumseagreen": [60, 179, 113], + "mediumslateblue": [123, 104, 238], + "mediumspringgreen": [0, 250, 154], + "mediumturquoise": [72, 209, 204], + "mediumvioletred": [199, 21, 133], + "midnightblue": [25, 25, 112], + "mintcream": [245, 255, 250], + "mistyrose": [255, 228, 225], + "moccasin": [255, 228, 181], + "navajowhite": [255, 222, 173], + "navy": [0, 0, 128], + "oldlace": [253, 245, 230], + "olive": [128, 128, 0], + "olivedrab": [107, 142, 35], + "orange": [255, 165, 0], + "orangered": [255, 69, 0], + "orchid": [218, 112, 214], + "palegoldenrod": [238, 232, 170], + "palegreen": [152, 251, 152], + "paleturquoise": [175, 238, 238], + "palevioletred": [219, 112, 147], + "papayawhip": [255, 239, 213], + "peachpuff": [255, 218, 185], + "peru": [205, 133, 63], + "pink": [255, 192, 203], + "plum": [221, 160, 221], + "powderblue": [176, 224, 230], + "purple": [128, 0, 128], + "rebeccapurple": [102, 51, 153], + "red": [255, 0, 0], + "rosybrown": [188, 143, 143], + "royalblue": [65, 105, 225], + "saddlebrown": [139, 69, 19], + "salmon": [250, 128, 114], + "sandybrown": [244, 164, 96], + "seagreen": [46, 139, 87], + "seashell": [255, 245, 238], + "sienna": [160, 82, 45], + "silver": [192, 192, 192], + "skyblue": [135, 206, 235], + "slateblue": [106, 90, 205], + "slategray": [112, 128, 144], + "slategrey": [112, 128, 144], + "snow": [255, 250, 250], + "springgreen": [0, 255, 127], + "steelblue": [70, 130, 180], + "tan": [210, 180, 140], + "teal": [0, 128, 128], + "thistle": [216, 191, 216], + "tomato": [255, 99, 71], + "turquoise": [64, 224, 208], + "violet": [238, 130, 238], + "wheat": [245, 222, 179], + "white": [255, 255, 255], + "whitesmoke": [245, 245, 245], + "yellow": [255, 255, 0], + "yellowgreen": [154, 205, 50] +}; + +/* MIT license */ + + +var colorString = { + getRgba: getRgba, + getHsla: getHsla, + getRgb: getRgb, + getHsl: getHsl, + getHwb: getHwb, + getAlpha: getAlpha, + + hexString: hexString, + rgbString: rgbString, + rgbaString: rgbaString, + percentString: percentString, + percentaString: percentaString, + hslString: hslString, + hslaString: hslaString, + hwbString: hwbString, + keyword: keyword +}; + +function getRgba(string) { + if (!string) { + return; + } + var abbr = /^#([a-fA-F0-9]{3,4})$/i, + hex = /^#([a-fA-F0-9]{6}([a-fA-F0-9]{2})?)$/i, + rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i, + per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i, + keyword = /(\w+)/; + + var rgb = [0, 0, 0], + a = 1, + match = string.match(abbr), + hexAlpha = ""; + if (match) { + match = match[1]; + hexAlpha = match[3]; + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match[i] + match[i], 16); + } + if (hexAlpha) { + a = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100; + } + } + else if (match = string.match(hex)) { + hexAlpha = match[2]; + match = match[1]; + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16); + } + if (hexAlpha) { + a = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100; + } + } + else if (match = string.match(rgba)) { + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match[i + 1]); + } + a = parseFloat(match[4]); + } + else if (match = string.match(per)) { + for (var i = 0; i < rgb.length; i++) { + rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55); + } + a = parseFloat(match[4]); + } + else if (match = string.match(keyword)) { + if (match[1] == "transparent") { + return [0, 0, 0, 0]; + } + rgb = colorName$1[match[1]]; + if (!rgb) { + return; + } + } + + for (var i = 0; i < rgb.length; i++) { + rgb[i] = scale(rgb[i], 0, 255); + } + if (!a && a != 0) { + a = 1; + } + else { + a = scale(a, 0, 1); + } + rgb[3] = a; + return rgb; +} + +function getHsla(string) { + if (!string) { + return; + } + var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; + var match = string.match(hsl); + if (match) { + var alpha = parseFloat(match[4]); + var h = scale(parseInt(match[1]), 0, 360), + s = scale(parseFloat(match[2]), 0, 100), + l = scale(parseFloat(match[3]), 0, 100), + a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); + return [h, s, l, a]; + } +} + +function getHwb(string) { + if (!string) { + return; + } + var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; + var match = string.match(hwb); + if (match) { + var alpha = parseFloat(match[4]); + var h = scale(parseInt(match[1]), 0, 360), + w = scale(parseFloat(match[2]), 0, 100), + b = scale(parseFloat(match[3]), 0, 100), + a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); + return [h, w, b, a]; + } +} + +function getRgb(string) { + var rgba = getRgba(string); + return rgba && rgba.slice(0, 3); +} + +function getHsl(string) { + var hsla = getHsla(string); + return hsla && hsla.slice(0, 3); +} + +function getAlpha(string) { + var vals = getRgba(string); + if (vals) { + return vals[3]; + } + else if (vals = getHsla(string)) { + return vals[3]; + } + else if (vals = getHwb(string)) { + return vals[3]; + } +} + +// generators +function hexString(rgba, a) { + var a = (a !== undefined && rgba.length === 3) ? a : rgba[3]; + return "#" + hexDouble(rgba[0]) + + hexDouble(rgba[1]) + + hexDouble(rgba[2]) + + ( + (a >= 0 && a < 1) + ? hexDouble(Math.round(a * 255)) + : "" + ); +} + +function rgbString(rgba, alpha) { + if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { + return rgbaString(rgba, alpha); + } + return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")"; +} + +function rgbaString(rgba, alpha) { + if (alpha === undefined) { + alpha = (rgba[3] !== undefined ? rgba[3] : 1); + } + return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + + ", " + alpha + ")"; +} + +function percentString(rgba, alpha) { + if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { + return percentaString(rgba, alpha); + } + var r = Math.round(rgba[0]/255 * 100), + g = Math.round(rgba[1]/255 * 100), + b = Math.round(rgba[2]/255 * 100); + + return "rgb(" + r + "%, " + g + "%, " + b + "%)"; +} + +function percentaString(rgba, alpha) { + var r = Math.round(rgba[0]/255 * 100), + g = Math.round(rgba[1]/255 * 100), + b = Math.round(rgba[2]/255 * 100); + return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")"; +} + +function hslString(hsla, alpha) { + if (alpha < 1 || (hsla[3] && hsla[3] < 1)) { + return hslaString(hsla, alpha); + } + return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)"; +} + +function hslaString(hsla, alpha) { + if (alpha === undefined) { + alpha = (hsla[3] !== undefined ? hsla[3] : 1); + } + return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, " + + alpha + ")"; +} + +// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax +// (hwb have alpha optional & 1 is default value) +function hwbString(hwb, alpha) { + if (alpha === undefined) { + alpha = (hwb[3] !== undefined ? hwb[3] : 1); + } + return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%" + + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")"; +} + +function keyword(rgb) { + return reverseNames[rgb.slice(0, 3)]; +} + +// helpers +function scale(num, min, max) { + return Math.min(Math.max(min, num), max); +} + +function hexDouble(num) { + var str = num.toString(16).toUpperCase(); + return (str.length < 2) ? "0" + str : str; +} + + +//create a list of reverse color names +var reverseNames = {}; +for (var name in colorName$1) { + reverseNames[colorName$1[name]] = name; +} + +/* MIT license */ + + + +var Color = function (obj) { + if (obj instanceof Color) { + return obj; + } + if (!(this instanceof Color)) { + return new Color(obj); + } + + this.valid = false; + this.values = { + rgb: [0, 0, 0], + hsl: [0, 0, 0], + hsv: [0, 0, 0], + hwb: [0, 0, 0], + cmyk: [0, 0, 0, 0], + alpha: 1 + }; + + // parse Color() argument + var vals; + if (typeof obj === 'string') { + vals = colorString.getRgba(obj); + if (vals) { + this.setValues('rgb', vals); + } else if (vals = colorString.getHsla(obj)) { + this.setValues('hsl', vals); + } else if (vals = colorString.getHwb(obj)) { + this.setValues('hwb', vals); + } + } else if (typeof obj === 'object') { + vals = obj; + if (vals.r !== undefined || vals.red !== undefined) { + this.setValues('rgb', vals); + } else if (vals.l !== undefined || vals.lightness !== undefined) { + this.setValues('hsl', vals); + } else if (vals.v !== undefined || vals.value !== undefined) { + this.setValues('hsv', vals); + } else if (vals.w !== undefined || vals.whiteness !== undefined) { + this.setValues('hwb', vals); + } else if (vals.c !== undefined || vals.cyan !== undefined) { + this.setValues('cmyk', vals); + } + } +}; + +Color.prototype = { + isValid: function () { + return this.valid; + }, + rgb: function () { + return this.setSpace('rgb', arguments); + }, + hsl: function () { + return this.setSpace('hsl', arguments); + }, + hsv: function () { + return this.setSpace('hsv', arguments); + }, + hwb: function () { + return this.setSpace('hwb', arguments); + }, + cmyk: function () { + return this.setSpace('cmyk', arguments); + }, + + rgbArray: function () { + return this.values.rgb; + }, + hslArray: function () { + return this.values.hsl; + }, + hsvArray: function () { + return this.values.hsv; + }, + hwbArray: function () { + var values = this.values; + if (values.alpha !== 1) { + return values.hwb.concat([values.alpha]); + } + return values.hwb; + }, + cmykArray: function () { + return this.values.cmyk; + }, + rgbaArray: function () { + var values = this.values; + return values.rgb.concat([values.alpha]); + }, + hslaArray: function () { + var values = this.values; + return values.hsl.concat([values.alpha]); + }, + alpha: function (val) { + if (val === undefined) { + return this.values.alpha; + } + this.setValues('alpha', val); + return this; + }, + + red: function (val) { + return this.setChannel('rgb', 0, val); + }, + green: function (val) { + return this.setChannel('rgb', 1, val); + }, + blue: function (val) { + return this.setChannel('rgb', 2, val); + }, + hue: function (val) { + if (val) { + val %= 360; + val = val < 0 ? 360 + val : val; + } + return this.setChannel('hsl', 0, val); + }, + saturation: function (val) { + return this.setChannel('hsl', 1, val); + }, + lightness: function (val) { + return this.setChannel('hsl', 2, val); + }, + saturationv: function (val) { + return this.setChannel('hsv', 1, val); + }, + whiteness: function (val) { + return this.setChannel('hwb', 1, val); + }, + blackness: function (val) { + return this.setChannel('hwb', 2, val); + }, + value: function (val) { + return this.setChannel('hsv', 2, val); + }, + cyan: function (val) { + return this.setChannel('cmyk', 0, val); + }, + magenta: function (val) { + return this.setChannel('cmyk', 1, val); + }, + yellow: function (val) { + return this.setChannel('cmyk', 2, val); + }, + black: function (val) { + return this.setChannel('cmyk', 3, val); + }, + + hexString: function () { + return colorString.hexString(this.values.rgb); + }, + rgbString: function () { + return colorString.rgbString(this.values.rgb, this.values.alpha); + }, + rgbaString: function () { + return colorString.rgbaString(this.values.rgb, this.values.alpha); + }, + percentString: function () { + return colorString.percentString(this.values.rgb, this.values.alpha); + }, + hslString: function () { + return colorString.hslString(this.values.hsl, this.values.alpha); + }, + hslaString: function () { + return colorString.hslaString(this.values.hsl, this.values.alpha); + }, + hwbString: function () { + return colorString.hwbString(this.values.hwb, this.values.alpha); + }, + keyword: function () { + return colorString.keyword(this.values.rgb, this.values.alpha); + }, + + rgbNumber: function () { + var rgb = this.values.rgb; + return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2]; + }, + + luminosity: function () { + // http://www.w3.org/TR/WCAG20/#relativeluminancedef + var rgb = this.values.rgb; + var lum = []; + for (var i = 0; i < rgb.length; i++) { + var chan = rgb[i] / 255; + lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4); + } + return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2]; + }, + + contrast: function (color2) { + // http://www.w3.org/TR/WCAG20/#contrast-ratiodef + var lum1 = this.luminosity(); + var lum2 = color2.luminosity(); + if (lum1 > lum2) { + return (lum1 + 0.05) / (lum2 + 0.05); + } + return (lum2 + 0.05) / (lum1 + 0.05); + }, + + level: function (color2) { + var contrastRatio = this.contrast(color2); + if (contrastRatio >= 7.1) { + return 'AAA'; + } + + return (contrastRatio >= 4.5) ? 'AA' : ''; + }, + + dark: function () { + // YIQ equation from http://24ways.org/2010/calculating-color-contrast + var rgb = this.values.rgb; + var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000; + return yiq < 128; + }, + + light: function () { + return !this.dark(); + }, + + negate: function () { + var rgb = []; + for (var i = 0; i < 3; i++) { + rgb[i] = 255 - this.values.rgb[i]; + } + this.setValues('rgb', rgb); + return this; + }, + + lighten: function (ratio) { + var hsl = this.values.hsl; + hsl[2] += hsl[2] * ratio; + this.setValues('hsl', hsl); + return this; + }, + + darken: function (ratio) { + var hsl = this.values.hsl; + hsl[2] -= hsl[2] * ratio; + this.setValues('hsl', hsl); + return this; + }, + + saturate: function (ratio) { + var hsl = this.values.hsl; + hsl[1] += hsl[1] * ratio; + this.setValues('hsl', hsl); + return this; + }, + + desaturate: function (ratio) { + var hsl = this.values.hsl; + hsl[1] -= hsl[1] * ratio; + this.setValues('hsl', hsl); + return this; + }, + + whiten: function (ratio) { + var hwb = this.values.hwb; + hwb[1] += hwb[1] * ratio; + this.setValues('hwb', hwb); + return this; + }, + + blacken: function (ratio) { + var hwb = this.values.hwb; + hwb[2] += hwb[2] * ratio; + this.setValues('hwb', hwb); + return this; + }, + + greyscale: function () { + var rgb = this.values.rgb; + // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale + var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11; + this.setValues('rgb', [val, val, val]); + return this; + }, + + clearer: function (ratio) { + var alpha = this.values.alpha; + this.setValues('alpha', alpha - (alpha * ratio)); + return this; + }, + + opaquer: function (ratio) { + var alpha = this.values.alpha; + this.setValues('alpha', alpha + (alpha * ratio)); + return this; + }, + + rotate: function (degrees) { + var hsl = this.values.hsl; + var hue = (hsl[0] + degrees) % 360; + hsl[0] = hue < 0 ? 360 + hue : hue; + this.setValues('hsl', hsl); + return this; + }, + + /** + * Ported from sass implementation in C + * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209 + */ + mix: function (mixinColor, weight) { + var color1 = this; + var color2 = mixinColor; + var p = weight === undefined ? 0.5 : weight; + + var w = 2 * p - 1; + var a = color1.alpha() - color2.alpha(); + + var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + return this + .rgb( + w1 * color1.red() + w2 * color2.red(), + w1 * color1.green() + w2 * color2.green(), + w1 * color1.blue() + w2 * color2.blue() + ) + .alpha(color1.alpha() * p + color2.alpha() * (1 - p)); + }, + + toJSON: function () { + return this.rgb(); + }, + + clone: function () { + // NOTE(SB): using node-clone creates a dependency to Buffer when using browserify, + // making the final build way to big to embed in Chart.js. So let's do it manually, + // assuming that values to clone are 1 dimension arrays containing only numbers, + // except 'alpha' which is a number. + var result = new Color(); + var source = this.values; + var target = result.values; + var value, type; + + for (var prop in source) { + if (source.hasOwnProperty(prop)) { + value = source[prop]; + type = ({}).toString.call(value); + if (type === '[object Array]') { + target[prop] = value.slice(0); + } else if (type === '[object Number]') { + target[prop] = value; + } else { + console.error('unexpected color value:', value); + } + } + } + + return result; + } +}; + +Color.prototype.spaces = { + rgb: ['red', 'green', 'blue'], + hsl: ['hue', 'saturation', 'lightness'], + hsv: ['hue', 'saturation', 'value'], + hwb: ['hue', 'whiteness', 'blackness'], + cmyk: ['cyan', 'magenta', 'yellow', 'black'] +}; + +Color.prototype.maxes = { + rgb: [255, 255, 255], + hsl: [360, 100, 100], + hsv: [360, 100, 100], + hwb: [360, 100, 100], + cmyk: [100, 100, 100, 100] +}; + +Color.prototype.getValues = function (space) { + var values = this.values; + var vals = {}; + + for (var i = 0; i < space.length; i++) { + vals[space.charAt(i)] = values[space][i]; + } + + if (values.alpha !== 1) { + vals.a = values.alpha; + } + + // {r: 255, g: 255, b: 255, a: 0.4} + return vals; +}; + +Color.prototype.setValues = function (space, vals) { + var values = this.values; + var spaces = this.spaces; + var maxes = this.maxes; + var alpha = 1; + var i; + + this.valid = true; + + if (space === 'alpha') { + alpha = vals; + } else if (vals.length) { + // [10, 10, 10] + values[space] = vals.slice(0, space.length); + alpha = vals[space.length]; + } else if (vals[space.charAt(0)] !== undefined) { + // {r: 10, g: 10, b: 10} + for (i = 0; i < space.length; i++) { + values[space][i] = vals[space.charAt(i)]; + } + + alpha = vals.a; + } else if (vals[spaces[space][0]] !== undefined) { + // {red: 10, green: 10, blue: 10} + var chans = spaces[space]; + + for (i = 0; i < space.length; i++) { + values[space][i] = vals[chans[i]]; + } + + alpha = vals.alpha; + } + + values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha))); + + if (space === 'alpha') { + return false; + } + + var capped; + + // cap values of the space prior converting all values + for (i = 0; i < space.length; i++) { + capped = Math.max(0, Math.min(maxes[space][i], values[space][i])); + values[space][i] = Math.round(capped); + } + + // convert to all the other color spaces + for (var sname in spaces) { + if (sname !== space) { + values[sname] = colorConvert[space][sname](values[space]); + } + } + + return true; +}; + +Color.prototype.setSpace = function (space, args) { + var vals = args[0]; + + if (vals === undefined) { + // color.rgb() + return this.getValues(space); + } + + // color.rgb(10, 10, 10) + if (typeof vals === 'number') { + vals = Array.prototype.slice.call(args); + } + + this.setValues(space, vals); + return this; +}; + +Color.prototype.setChannel = function (space, index, val) { + var svalues = this.values[space]; + if (val === undefined) { + // color.red() + return svalues[index]; + } else if (val === svalues[index]) { + // color.red(color.red()) + return this; + } + + // color.red(100) + svalues[index] = val; + this.setValues(space, svalues); + + return this; +}; + +if (typeof window !== 'undefined') { + window.Color = Color; +} + +var chartjsColor = Color; + +/** + * @namespace Chart.helpers + */ +var helpers = { + /** + * An empty function that can be used, for example, for optional callback. + */ + noop: function() {}, + + /** + * Returns a unique id, sequentially generated from a global variable. + * @returns {number} + * @function + */ + uid: (function() { + var id = 0; + return function() { + return id++; + }; + }()), + + /** + * Returns true if `value` is neither null nor undefined, else returns false. + * @param {*} value - The value to test. + * @returns {boolean} + * @since 2.7.0 + */ + isNullOrUndef: function(value) { + return value === null || typeof value === 'undefined'; + }, + + /** + * Returns true if `value` is an array (including typed arrays), else returns false. + * @param {*} value - The value to test. + * @returns {boolean} + * @function + */ + isArray: function(value) { + if (Array.isArray && Array.isArray(value)) { + return true; + } + var type = Object.prototype.toString.call(value); + if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') { + return true; + } + return false; + }, + + /** + * Returns true if `value` is an object (excluding null), else returns false. + * @param {*} value - The value to test. + * @returns {boolean} + * @since 2.7.0 + */ + isObject: function(value) { + return value !== null && Object.prototype.toString.call(value) === '[object Object]'; + }, + + /** + * Returns true if `value` is a finite number, else returns false + * @param {*} value - The value to test. + * @returns {boolean} + */ + isFinite: function(value) { + return (typeof value === 'number' || value instanceof Number) && isFinite(value); + }, + + /** + * Returns `value` if defined, else returns `defaultValue`. + * @param {*} value - The value to return if defined. + * @param {*} defaultValue - The value to return if `value` is undefined. + * @returns {*} + */ + valueOrDefault: function(value, defaultValue) { + return typeof value === 'undefined' ? defaultValue : value; + }, + + /** + * Returns value at the given `index` in array if defined, else returns `defaultValue`. + * @param {Array} value - The array to lookup for value at `index`. + * @param {number} index - The index in `value` to lookup for value. + * @param {*} defaultValue - The value to return if `value[index]` is undefined. + * @returns {*} + */ + valueAtIndexOrDefault: function(value, index, defaultValue) { + return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue); + }, + + /** + * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the + * value returned by `fn`. If `fn` is not a function, this method returns undefined. + * @param {function} fn - The function to call. + * @param {Array|undefined|null} args - The arguments with which `fn` should be called. + * @param {object} [thisArg] - The value of `this` provided for the call to `fn`. + * @returns {*} + */ + callback: function(fn, args, thisArg) { + if (fn && typeof fn.call === 'function') { + return fn.apply(thisArg, args); + } + }, + + /** + * Note(SB) for performance sake, this method should only be used when loopable type + * is unknown or in none intensive code (not called often and small loopable). Else + * it's preferable to use a regular for() loop and save extra function calls. + * @param {object|Array} loopable - The object or array to be iterated. + * @param {function} fn - The function to call for each item. + * @param {object} [thisArg] - The value of `this` provided for the call to `fn`. + * @param {boolean} [reverse] - If true, iterates backward on the loopable. + */ + each: function(loopable, fn, thisArg, reverse) { + var i, len, keys; + if (helpers.isArray(loopable)) { + len = loopable.length; + if (reverse) { + for (i = len - 1; i >= 0; i--) { + fn.call(thisArg, loopable[i], i); + } + } else { + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[i], i); + } + } + } else if (helpers.isObject(loopable)) { + keys = Object.keys(loopable); + len = keys.length; + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[keys[i]], keys[i]); + } + } + }, + + /** + * Returns true if the `a0` and `a1` arrays have the same content, else returns false. + * @see https://stackoverflow.com/a/14853974 + * @param {Array} a0 - The array to compare + * @param {Array} a1 - The array to compare + * @returns {boolean} + */ + arrayEquals: function(a0, a1) { + var i, ilen, v0, v1; + + if (!a0 || !a1 || a0.length !== a1.length) { + return false; + } + + for (i = 0, ilen = a0.length; i < ilen; ++i) { + v0 = a0[i]; + v1 = a1[i]; + + if (v0 instanceof Array && v1 instanceof Array) { + if (!helpers.arrayEquals(v0, v1)) { + return false; + } + } else if (v0 !== v1) { + // NOTE: two different object instances will never be equal: {x:20} != {x:20} + return false; + } + } + + return true; + }, + + /** + * Returns a deep copy of `source` without keeping references on objects and arrays. + * @param {*} source - The value to clone. + * @returns {*} + */ + clone: function(source) { + if (helpers.isArray(source)) { + return source.map(helpers.clone); + } + + if (helpers.isObject(source)) { + var target = {}; + var keys = Object.keys(source); + var klen = keys.length; + var k = 0; + + for (; k < klen; ++k) { + target[keys[k]] = helpers.clone(source[keys[k]]); + } + + return target; + } + + return source; + }, + + /** + * The default merger when Chart.helpers.merge is called without merger option. + * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback. + * @private + */ + _merger: function(key, target, source, options) { + var tval = target[key]; + var sval = source[key]; + + if (helpers.isObject(tval) && helpers.isObject(sval)) { + helpers.merge(tval, sval, options); + } else { + target[key] = helpers.clone(sval); + } + }, + + /** + * Merges source[key] in target[key] only if target[key] is undefined. + * @private + */ + _mergerIf: function(key, target, source) { + var tval = target[key]; + var sval = source[key]; + + if (helpers.isObject(tval) && helpers.isObject(sval)) { + helpers.mergeIf(tval, sval); + } else if (!target.hasOwnProperty(key)) { + target[key] = helpers.clone(sval); + } + }, + + /** + * Recursively deep copies `source` properties into `target` with the given `options`. + * IMPORTANT: `target` is not cloned and will be updated with `source` properties. + * @param {object} target - The target object in which all sources are merged into. + * @param {object|object[]} source - Object(s) to merge into `target`. + * @param {object} [options] - Merging options: + * @param {function} [options.merger] - The merge method (key, target, source, options) + * @returns {object} The `target` object. + */ + merge: function(target, source, options) { + var sources = helpers.isArray(source) ? source : [source]; + var ilen = sources.length; + var merge, i, keys, klen, k; + + if (!helpers.isObject(target)) { + return target; + } + + options = options || {}; + merge = options.merger || helpers._merger; + + for (i = 0; i < ilen; ++i) { + source = sources[i]; + if (!helpers.isObject(source)) { + continue; + } + + keys = Object.keys(source); + for (k = 0, klen = keys.length; k < klen; ++k) { + merge(keys[k], target, source, options); + } + } + + return target; + }, + + /** + * Recursively deep copies `source` properties into `target` *only* if not defined in target. + * IMPORTANT: `target` is not cloned and will be updated with `source` properties. + * @param {object} target - The target object in which all sources are merged into. + * @param {object|object[]} source - Object(s) to merge into `target`. + * @returns {object} The `target` object. + */ + mergeIf: function(target, source) { + return helpers.merge(target, source, {merger: helpers._mergerIf}); + }, + + /** + * Applies the contents of two or more objects together into the first object. + * @param {object} target - The target object in which all objects are merged into. + * @param {object} arg1 - Object containing additional properties to merge in target. + * @param {object} argN - Additional objects containing properties to merge in target. + * @returns {object} The `target` object. + */ + extend: Object.assign || function(target) { + return helpers.merge(target, [].slice.call(arguments, 1), { + merger: function(key, dst, src) { + dst[key] = src[key]; + } + }); + }, + + /** + * Basic javascript inheritance based on the model created in Backbone.js + */ + inherits: function(extensions) { + var me = this; + var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() { + return me.apply(this, arguments); + }; + + var Surrogate = function() { + this.constructor = ChartElement; + }; + + Surrogate.prototype = me.prototype; + ChartElement.prototype = new Surrogate(); + ChartElement.extend = helpers.inherits; + + if (extensions) { + helpers.extend(ChartElement.prototype, extensions); + } + + ChartElement.__super__ = me.prototype; + return ChartElement; + }, + + _deprecated: function(scope, value, previous, current) { + if (value !== undefined) { + console.warn(scope + ': "' + previous + + '" is deprecated. Please use "' + current + '" instead'); + } + } +}; + +var helpers_core = helpers; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.callback instead. + * @function Chart.helpers.callCallback + * @deprecated since version 2.6.0 + * @todo remove at version 3 + * @private + */ +helpers.callCallback = helpers.callback; + +/** + * Provided for backward compatibility, use Array.prototype.indexOf instead. + * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+ + * @function Chart.helpers.indexOf + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers.indexOf = function(array, item, fromIndex) { + return Array.prototype.indexOf.call(array, item, fromIndex); +}; + +/** + * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead. + * @function Chart.helpers.getValueOrDefault + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers.getValueOrDefault = helpers.valueOrDefault; + +/** + * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead. + * @function Chart.helpers.getValueAtIndexOrDefault + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault; + +/** + * Easing functions adapted from Robert Penner's easing equations. + * @namespace Chart.helpers.easingEffects + * @see http://www.robertpenner.com/easing/ + */ +var effects = { + linear: function(t) { + return t; + }, + + easeInQuad: function(t) { + return t * t; + }, + + easeOutQuad: function(t) { + return -t * (t - 2); + }, + + easeInOutQuad: function(t) { + if ((t /= 0.5) < 1) { + return 0.5 * t * t; + } + return -0.5 * ((--t) * (t - 2) - 1); + }, + + easeInCubic: function(t) { + return t * t * t; + }, + + easeOutCubic: function(t) { + return (t = t - 1) * t * t + 1; + }, + + easeInOutCubic: function(t) { + if ((t /= 0.5) < 1) { + return 0.5 * t * t * t; + } + return 0.5 * ((t -= 2) * t * t + 2); + }, + + easeInQuart: function(t) { + return t * t * t * t; + }, + + easeOutQuart: function(t) { + return -((t = t - 1) * t * t * t - 1); + }, + + easeInOutQuart: function(t) { + if ((t /= 0.5) < 1) { + return 0.5 * t * t * t * t; + } + return -0.5 * ((t -= 2) * t * t * t - 2); + }, + + easeInQuint: function(t) { + return t * t * t * t * t; + }, + + easeOutQuint: function(t) { + return (t = t - 1) * t * t * t * t + 1; + }, + + easeInOutQuint: function(t) { + if ((t /= 0.5) < 1) { + return 0.5 * t * t * t * t * t; + } + return 0.5 * ((t -= 2) * t * t * t * t + 2); + }, + + easeInSine: function(t) { + return -Math.cos(t * (Math.PI / 2)) + 1; + }, + + easeOutSine: function(t) { + return Math.sin(t * (Math.PI / 2)); + }, + + easeInOutSine: function(t) { + return -0.5 * (Math.cos(Math.PI * t) - 1); + }, + + easeInExpo: function(t) { + return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)); + }, + + easeOutExpo: function(t) { + return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1; + }, + + easeInOutExpo: function(t) { + if (t === 0) { + return 0; + } + if (t === 1) { + return 1; + } + if ((t /= 0.5) < 1) { + return 0.5 * Math.pow(2, 10 * (t - 1)); + } + return 0.5 * (-Math.pow(2, -10 * --t) + 2); + }, + + easeInCirc: function(t) { + if (t >= 1) { + return t; + } + return -(Math.sqrt(1 - t * t) - 1); + }, + + easeOutCirc: function(t) { + return Math.sqrt(1 - (t = t - 1) * t); + }, + + easeInOutCirc: function(t) { + if ((t /= 0.5) < 1) { + return -0.5 * (Math.sqrt(1 - t * t) - 1); + } + return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1); + }, + + easeInElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if (t === 1) { + return 1; + } + if (!p) { + p = 0.3; + } + if (a < 1) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p)); + }, + + easeOutElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if (t === 1) { + return 1; + } + if (!p) { + p = 0.3; + } + if (a < 1) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1; + }, + + easeInOutElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if ((t /= 0.5) === 2) { + return 1; + } + if (!p) { + p = 0.45; + } + if (a < 1) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + if (t < 1) { + return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p)); + } + return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1; + }, + easeInBack: function(t) { + var s = 1.70158; + return t * t * ((s + 1) * t - s); + }, + + easeOutBack: function(t) { + var s = 1.70158; + return (t = t - 1) * t * ((s + 1) * t + s) + 1; + }, + + easeInOutBack: function(t) { + var s = 1.70158; + if ((t /= 0.5) < 1) { + return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s)); + } + return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); + }, + + easeInBounce: function(t) { + return 1 - effects.easeOutBounce(1 - t); + }, + + easeOutBounce: function(t) { + if (t < (1 / 2.75)) { + return 7.5625 * t * t; + } + if (t < (2 / 2.75)) { + return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75; + } + if (t < (2.5 / 2.75)) { + return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375; + } + return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375; + }, + + easeInOutBounce: function(t) { + if (t < 0.5) { + return effects.easeInBounce(t * 2) * 0.5; + } + return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5; + } +}; + +var helpers_easing = { + effects: effects +}; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.easing.effects instead. + * @function Chart.helpers.easingEffects + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers_core.easingEffects = effects; + +var PI = Math.PI; +var RAD_PER_DEG = PI / 180; +var DOUBLE_PI = PI * 2; +var HALF_PI = PI / 2; +var QUARTER_PI = PI / 4; +var TWO_THIRDS_PI = PI * 2 / 3; + +/** + * @namespace Chart.helpers.canvas + */ +var exports$1 = { + /** + * Clears the entire canvas associated to the given `chart`. + * @param {Chart} chart - The chart for which to clear the canvas. + */ + clear: function(chart) { + chart.ctx.clearRect(0, 0, chart.width, chart.height); + }, + + /** + * Creates a "path" for a rectangle with rounded corners at position (x, y) with a + * given size (width, height) and the same `radius` for all corners. + * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context. + * @param {number} x - The x axis of the coordinate for the rectangle starting point. + * @param {number} y - The y axis of the coordinate for the rectangle starting point. + * @param {number} width - The rectangle's width. + * @param {number} height - The rectangle's height. + * @param {number} radius - The rounded amount (in pixels) for the four corners. + * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object? + */ + roundedRect: function(ctx, x, y, width, height, radius) { + if (radius) { + var r = Math.min(radius, height / 2, width / 2); + var left = x + r; + var top = y + r; + var right = x + width - r; + var bottom = y + height - r; + + ctx.moveTo(x, top); + if (left < right && top < bottom) { + ctx.arc(left, top, r, -PI, -HALF_PI); + ctx.arc(right, top, r, -HALF_PI, 0); + ctx.arc(right, bottom, r, 0, HALF_PI); + ctx.arc(left, bottom, r, HALF_PI, PI); + } else if (left < right) { + ctx.moveTo(left, y); + ctx.arc(right, top, r, -HALF_PI, HALF_PI); + ctx.arc(left, top, r, HALF_PI, PI + HALF_PI); + } else if (top < bottom) { + ctx.arc(left, top, r, -PI, 0); + ctx.arc(left, bottom, r, 0, PI); + } else { + ctx.arc(left, top, r, -PI, PI); + } + ctx.closePath(); + ctx.moveTo(x, y); + } else { + ctx.rect(x, y, width, height); + } + }, + + drawPoint: function(ctx, style, radius, x, y, rotation) { + var type, xOffset, yOffset, size, cornerRadius; + var rad = (rotation || 0) * RAD_PER_DEG; + + if (style && typeof style === 'object') { + type = style.toString(); + if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { + ctx.save(); + ctx.translate(x, y); + ctx.rotate(rad); + ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); + ctx.restore(); + return; + } + } + + if (isNaN(radius) || radius <= 0) { + return; + } + + ctx.beginPath(); + + switch (style) { + // Default includes circle + default: + ctx.arc(x, y, radius, 0, DOUBLE_PI); + ctx.closePath(); + break; + case 'triangle': + ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + ctx.closePath(); + break; + case 'rectRounded': + // NOTE: the rounded rect implementation changed to use `arc` instead of + // `quadraticCurveTo` since it generates better results when rect is + // almost a circle. 0.516 (instead of 0.5) produces results with visually + // closer proportion to the previous impl and it is inscribed in the + // circle with `radius`. For more details, see the following PRs: + // https://github.com/chartjs/Chart.js/issues/5597 + // https://github.com/chartjs/Chart.js/issues/5858 + cornerRadius = radius * 0.516; + size = radius - cornerRadius; + xOffset = Math.cos(rad + QUARTER_PI) * size; + yOffset = Math.sin(rad + QUARTER_PI) * size; + ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); + ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad); + ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI); + ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); + ctx.closePath(); + break; + case 'rect': + if (!rotation) { + size = Math.SQRT1_2 * radius; + ctx.rect(x - size, y - size, 2 * size, 2 * size); + break; + } + rad += QUARTER_PI; + /* falls through */ + case 'rectRot': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + yOffset, y - xOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.lineTo(x - yOffset, y + xOffset); + ctx.closePath(); + break; + case 'crossRot': + rad += QUARTER_PI; + /* falls through */ + case 'cross': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'star': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + rad += QUARTER_PI; + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'line': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + break; + case 'dash': + ctx.moveTo(x, y); + ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius); + break; + } + + ctx.fill(); + ctx.stroke(); + }, + + /** + * Returns true if the point is inside the rectangle + * @param {object} point - The point to test + * @param {object} area - The rectangle + * @returns {boolean} + * @private + */ + _isPointInArea: function(point, area) { + var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error. + + return point.x > area.left - epsilon && point.x < area.right + epsilon && + point.y > area.top - epsilon && point.y < area.bottom + epsilon; + }, + + clipArea: function(ctx, area) { + ctx.save(); + ctx.beginPath(); + ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); + ctx.clip(); + }, + + unclipArea: function(ctx) { + ctx.restore(); + }, + + lineTo: function(ctx, previous, target, flip) { + var stepped = target.steppedLine; + if (stepped) { + if (stepped === 'middle') { + var midpoint = (previous.x + target.x) / 2.0; + ctx.lineTo(midpoint, flip ? target.y : previous.y); + ctx.lineTo(midpoint, flip ? previous.y : target.y); + } else if ((stepped === 'after' && !flip) || (stepped !== 'after' && flip)) { + ctx.lineTo(previous.x, target.y); + } else { + ctx.lineTo(target.x, previous.y); + } + ctx.lineTo(target.x, target.y); + return; + } + + if (!target.tension) { + ctx.lineTo(target.x, target.y); + return; + } + + ctx.bezierCurveTo( + flip ? previous.controlPointPreviousX : previous.controlPointNextX, + flip ? previous.controlPointPreviousY : previous.controlPointNextY, + flip ? target.controlPointNextX : target.controlPointPreviousX, + flip ? target.controlPointNextY : target.controlPointPreviousY, + target.x, + target.y); + } +}; + +var helpers_canvas = exports$1; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.canvas.clear instead. + * @namespace Chart.helpers.clear + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers_core.clear = exports$1.clear; + +/** + * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead. + * @namespace Chart.helpers.drawRoundedRectangle + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers_core.drawRoundedRectangle = function(ctx) { + ctx.beginPath(); + exports$1.roundedRect.apply(exports$1, arguments); +}; + +var defaults = { + /** + * @private + */ + _set: function(scope, values) { + return helpers_core.merge(this[scope] || (this[scope] = {}), values); + } +}; + +// TODO(v3): remove 'global' from namespace. all default are global and +// there's inconsistency around which options are under 'global' +defaults._set('global', { + defaultColor: 'rgba(0,0,0,0.1)', + defaultFontColor: '#666', + defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + defaultFontSize: 12, + defaultFontStyle: 'normal', + defaultLineHeight: 1.2, + showLines: true +}); + +var core_defaults = defaults; + +var valueOrDefault = helpers_core.valueOrDefault; + +/** + * Converts the given font object into a CSS font string. + * @param {object} font - A font object. + * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font + * @private + */ +function toFontString(font) { + if (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) { + return null; + } + + return (font.style ? font.style + ' ' : '') + + (font.weight ? font.weight + ' ' : '') + + font.size + 'px ' + + font.family; +} + +/** + * @alias Chart.helpers.options + * @namespace + */ +var helpers_options = { + /** + * Converts the given line height `value` in pixels for a specific font `size`. + * @param {number|string} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em'). + * @param {number} size - The font size (in pixels) used to resolve relative `value`. + * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid). + * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height + * @since 2.7.0 + */ + toLineHeight: function(value, size) { + var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/); + if (!matches || matches[1] === 'normal') { + return size * 1.2; + } + + value = +matches[2]; + + switch (matches[3]) { + case 'px': + return value; + case '%': + value /= 100; + break; + } + + return size * value; + }, + + /** + * Converts the given value into a padding object with pre-computed width/height. + * @param {number|object} value - If a number, set the value to all TRBL component, + * else, if and object, use defined properties and sets undefined ones to 0. + * @returns {object} The padding values (top, right, bottom, left, width, height) + * @since 2.7.0 + */ + toPadding: function(value) { + var t, r, b, l; + + if (helpers_core.isObject(value)) { + t = +value.top || 0; + r = +value.right || 0; + b = +value.bottom || 0; + l = +value.left || 0; + } else { + t = r = b = l = +value || 0; + } + + return { + top: t, + right: r, + bottom: b, + left: l, + height: t + b, + width: l + r + }; + }, + + /** + * Parses font options and returns the font object. + * @param {object} options - A object that contains font options to be parsed. + * @return {object} The font object. + * @todo Support font.* options and renamed to toFont(). + * @private + */ + _parseFont: function(options) { + var globalDefaults = core_defaults.global; + var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize); + var font = { + family: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily), + lineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size), + size: size, + style: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle), + weight: null, + string: '' + }; + + font.string = toFontString(font); + return font; + }, + + /** + * Evaluates the given `inputs` sequentially and returns the first defined value. + * @param {Array} inputs - An array of values, falling back to the last value. + * @param {object} [context] - If defined and the current value is a function, the value + * is called with `context` as first argument and the result becomes the new input. + * @param {number} [index] - If defined and the current value is an array, the value + * at `index` become the new input. + * @param {object} [info] - object to return information about resolution in + * @param {boolean} [info.cacheable] - Will be set to `false` if option is not cacheable. + * @since 2.7.0 + */ + resolve: function(inputs, context, index, info) { + var cacheable = true; + var i, ilen, value; + + for (i = 0, ilen = inputs.length; i < ilen; ++i) { + value = inputs[i]; + if (value === undefined) { + continue; + } + if (context !== undefined && typeof value === 'function') { + value = value(context); + cacheable = false; + } + if (index !== undefined && helpers_core.isArray(value)) { + value = value[index]; + cacheable = false; + } + if (value !== undefined) { + if (info && !cacheable) { + info.cacheable = false; + } + return value; + } + } + } +}; + +/** + * @alias Chart.helpers.math + * @namespace + */ +var exports$2 = { + /** + * Returns an array of factors sorted from 1 to sqrt(value) + * @private + */ + _factorize: function(value) { + var result = []; + var sqrt = Math.sqrt(value); + var i; + + for (i = 1; i < sqrt; i++) { + if (value % i === 0) { + result.push(i); + result.push(value / i); + } + } + if (sqrt === (sqrt | 0)) { // if value is a square number + result.push(sqrt); + } + + result.sort(function(a, b) { + return a - b; + }).pop(); + return result; + }, + + log10: Math.log10 || function(x) { + var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10. + // Check for whole powers of 10, + // which due to floating point rounding error should be corrected. + var powerOf10 = Math.round(exponent); + var isPowerOf10 = x === Math.pow(10, powerOf10); + + return isPowerOf10 ? powerOf10 : exponent; + } +}; + +var helpers_math = exports$2; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.math.log10 instead. + * @namespace Chart.helpers.log10 + * @deprecated since version 2.9.0 + * @todo remove at version 3 + * @private + */ +helpers_core.log10 = exports$2.log10; + +var getRtlAdapter = function(rectX, width) { + return { + x: function(x) { + return rectX + rectX + width - x; + }, + setWidth: function(w) { + width = w; + }, + textAlign: function(align) { + if (align === 'center') { + return align; + } + return align === 'right' ? 'left' : 'right'; + }, + xPlus: function(x, value) { + return x - value; + }, + leftForLtr: function(x, itemWidth) { + return x - itemWidth; + }, + }; +}; + +var getLtrAdapter = function() { + return { + x: function(x) { + return x; + }, + setWidth: function(w) { // eslint-disable-line no-unused-vars + }, + textAlign: function(align) { + return align; + }, + xPlus: function(x, value) { + return x + value; + }, + leftForLtr: function(x, _itemWidth) { // eslint-disable-line no-unused-vars + return x; + }, + }; +}; + +var getAdapter = function(rtl, rectX, width) { + return rtl ? getRtlAdapter(rectX, width) : getLtrAdapter(); +}; + +var overrideTextDirection = function(ctx, direction) { + var style, original; + if (direction === 'ltr' || direction === 'rtl') { + style = ctx.canvas.style; + original = [ + style.getPropertyValue('direction'), + style.getPropertyPriority('direction'), + ]; + + style.setProperty('direction', direction, 'important'); + ctx.prevTextDirection = original; + } +}; + +var restoreTextDirection = function(ctx) { + var original = ctx.prevTextDirection; + if (original !== undefined) { + delete ctx.prevTextDirection; + ctx.canvas.style.setProperty('direction', original[0], original[1]); + } +}; + +var helpers_rtl = { + getRtlAdapter: getAdapter, + overrideTextDirection: overrideTextDirection, + restoreTextDirection: restoreTextDirection, +}; + +var helpers$1 = helpers_core; +var easing = helpers_easing; +var canvas = helpers_canvas; +var options = helpers_options; +var math = helpers_math; +var rtl = helpers_rtl; +helpers$1.easing = easing; +helpers$1.canvas = canvas; +helpers$1.options = options; +helpers$1.math = math; +helpers$1.rtl = rtl; + +function interpolate(start, view, model, ease) { + var keys = Object.keys(model); + var i, ilen, key, actual, origin, target, type, c0, c1; + + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + + target = model[key]; + + // if a value is added to the model after pivot() has been called, the view + // doesn't contain it, so let's initialize the view to the target value. + if (!view.hasOwnProperty(key)) { + view[key] = target; + } + + actual = view[key]; + + if (actual === target || key[0] === '_') { + continue; + } + + if (!start.hasOwnProperty(key)) { + start[key] = actual; + } + + origin = start[key]; + + type = typeof target; + + if (type === typeof origin) { + if (type === 'string') { + c0 = chartjsColor(origin); + if (c0.valid) { + c1 = chartjsColor(target); + if (c1.valid) { + view[key] = c1.mix(c0, ease).rgbString(); + continue; + } + } + } else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) { + view[key] = origin + (target - origin) * ease; + continue; + } + } + + view[key] = target; + } +} + +var Element = function(configuration) { + helpers$1.extend(this, configuration); + this.initialize.apply(this, arguments); +}; + +helpers$1.extend(Element.prototype, { + _type: undefined, + + initialize: function() { + this.hidden = false; + }, + + pivot: function() { + var me = this; + if (!me._view) { + me._view = helpers$1.extend({}, me._model); + } + me._start = {}; + return me; + }, + + transition: function(ease) { + var me = this; + var model = me._model; + var start = me._start; + var view = me._view; + + // No animation -> No Transition + if (!model || ease === 1) { + me._view = helpers$1.extend({}, model); + me._start = null; + return me; + } + + if (!view) { + view = me._view = {}; + } + + if (!start) { + start = me._start = {}; + } + + interpolate(start, view, model, ease); + + return me; + }, + + tooltipPosition: function() { + return { + x: this._model.x, + y: this._model.y + }; + }, + + hasValue: function() { + return helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y); + } +}); + +Element.extend = helpers$1.inherits; + +var core_element = Element; + +var exports$3 = core_element.extend({ + chart: null, // the animation associated chart instance + currentStep: 0, // the current animation step + numSteps: 60, // default number of steps + easing: '', // the easing to use for this animation + render: null, // render function used by the animation service + + onAnimationProgress: null, // user specified callback to fire on each step of the animation + onAnimationComplete: null, // user specified callback to fire when the animation finishes +}); + +var core_animation = exports$3; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.Animation instead + * @prop Chart.Animation#animationObject + * @deprecated since version 2.6.0 + * @todo remove at version 3 + */ +Object.defineProperty(exports$3.prototype, 'animationObject', { + get: function() { + return this; + } +}); + +/** + * Provided for backward compatibility, use Chart.Animation#chart instead + * @prop Chart.Animation#chartInstance + * @deprecated since version 2.6.0 + * @todo remove at version 3 + */ +Object.defineProperty(exports$3.prototype, 'chartInstance', { + get: function() { + return this.chart; + }, + set: function(value) { + this.chart = value; + } +}); + +core_defaults._set('global', { + animation: { + duration: 1000, + easing: 'easeOutQuart', + onProgress: helpers$1.noop, + onComplete: helpers$1.noop + } +}); + +var core_animations = { + animations: [], + request: null, + + /** + * @param {Chart} chart - The chart to animate. + * @param {Chart.Animation} animation - The animation that we will animate. + * @param {number} duration - The animation duration in ms. + * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions + */ + addAnimation: function(chart, animation, duration, lazy) { + var animations = this.animations; + var i, ilen; + + animation.chart = chart; + animation.startTime = Date.now(); + animation.duration = duration; + + if (!lazy) { + chart.animating = true; + } + + for (i = 0, ilen = animations.length; i < ilen; ++i) { + if (animations[i].chart === chart) { + animations[i] = animation; + return; + } + } + + animations.push(animation); + + // If there are no animations queued, manually kickstart a digest, for lack of a better word + if (animations.length === 1) { + this.requestAnimationFrame(); + } + }, + + cancelAnimation: function(chart) { + var index = helpers$1.findIndex(this.animations, function(animation) { + return animation.chart === chart; + }); + + if (index !== -1) { + this.animations.splice(index, 1); + chart.animating = false; + } + }, + + requestAnimationFrame: function() { + var me = this; + if (me.request === null) { + // Skip animation frame requests until the active one is executed. + // This can happen when processing mouse events, e.g. 'mousemove' + // and 'mouseout' events will trigger multiple renders. + me.request = helpers$1.requestAnimFrame.call(window, function() { + me.request = null; + me.startDigest(); + }); + } + }, + + /** + * @private + */ + startDigest: function() { + var me = this; + + me.advance(); + + // Do we have more stuff to animate? + if (me.animations.length > 0) { + me.requestAnimationFrame(); + } + }, + + /** + * @private + */ + advance: function() { + var animations = this.animations; + var animation, chart, numSteps, nextStep; + var i = 0; + + // 1 animation per chart, so we are looping charts here + while (i < animations.length) { + animation = animations[i]; + chart = animation.chart; + numSteps = animation.numSteps; + + // Make sure that currentStep starts at 1 + // https://github.com/chartjs/Chart.js/issues/6104 + nextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1; + animation.currentStep = Math.min(nextStep, numSteps); + + helpers$1.callback(animation.render, [chart, animation], chart); + helpers$1.callback(animation.onAnimationProgress, [animation], chart); + + if (animation.currentStep >= numSteps) { + helpers$1.callback(animation.onAnimationComplete, [animation], chart); + chart.animating = false; + animations.splice(i, 1); + } else { + ++i; + } + } + } +}; + +var resolve = helpers$1.options.resolve; + +var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; + +/** + * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice', + * 'unshift') and notify the listener AFTER the array has been altered. Listeners are + * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments. + */ +function listenArrayEvents(array, listener) { + if (array._chartjs) { + array._chartjs.listeners.push(listener); + return; + } + + Object.defineProperty(array, '_chartjs', { + configurable: true, + enumerable: false, + value: { + listeners: [listener] + } + }); + + arrayEvents.forEach(function(key) { + var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1); + var base = array[key]; + + Object.defineProperty(array, key, { + configurable: true, + enumerable: false, + value: function() { + var args = Array.prototype.slice.call(arguments); + var res = base.apply(this, args); + + helpers$1.each(array._chartjs.listeners, function(object) { + if (typeof object[method] === 'function') { + object[method].apply(object, args); + } + }); + + return res; + } + }); + }); +} + +/** + * Removes the given array event listener and cleanup extra attached properties (such as + * the _chartjs stub and overridden methods) if array doesn't have any more listeners. + */ +function unlistenArrayEvents(array, listener) { + var stub = array._chartjs; + if (!stub) { + return; + } + + var listeners = stub.listeners; + var index = listeners.indexOf(listener); + if (index !== -1) { + listeners.splice(index, 1); + } + + if (listeners.length > 0) { + return; + } + + arrayEvents.forEach(function(key) { + delete array[key]; + }); + + delete array._chartjs; +} + +// Base class for all dataset controllers (line, bar, etc) +var DatasetController = function(chart, datasetIndex) { + this.initialize(chart, datasetIndex); +}; + +helpers$1.extend(DatasetController.prototype, { + + /** + * Element type used to generate a meta dataset (e.g. Chart.element.Line). + * @type {Chart.core.element} + */ + datasetElementType: null, + + /** + * Element type used to generate a meta data (e.g. Chart.element.Point). + * @type {Chart.core.element} + */ + dataElementType: null, + + /** + * Dataset element option keys to be resolved in _resolveDatasetElementOptions. + * A derived controller may override this to resolve controller-specific options. + * The keys defined here are for backward compatibility for legend styles. + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderCapStyle', + 'borderColor', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'borderWidth' + ], + + /** + * Data element option keys to be resolved in _resolveDataElementOptions. + * A derived controller may override this to resolve controller-specific options. + * The keys defined here are for backward compatibility for legend styles. + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'pointStyle' + ], + + initialize: function(chart, datasetIndex) { + var me = this; + me.chart = chart; + me.index = datasetIndex; + me.linkScales(); + me.addElements(); + me._type = me.getMeta().type; + }, + + updateIndex: function(datasetIndex) { + this.index = datasetIndex; + }, + + linkScales: function() { + var me = this; + var meta = me.getMeta(); + var chart = me.chart; + var scales = chart.scales; + var dataset = me.getDataset(); + var scalesOpts = chart.options.scales; + + if (meta.xAxisID === null || !(meta.xAxisID in scales) || dataset.xAxisID) { + meta.xAxisID = dataset.xAxisID || scalesOpts.xAxes[0].id; + } + if (meta.yAxisID === null || !(meta.yAxisID in scales) || dataset.yAxisID) { + meta.yAxisID = dataset.yAxisID || scalesOpts.yAxes[0].id; + } + }, + + getDataset: function() { + return this.chart.data.datasets[this.index]; + }, + + getMeta: function() { + return this.chart.getDatasetMeta(this.index); + }, + + getScaleForId: function(scaleID) { + return this.chart.scales[scaleID]; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.getMeta().yAxisID; + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.getMeta().xAxisID; + }, + + /** + * @private + */ + _getValueScale: function() { + return this.getScaleForId(this._getValueScaleId()); + }, + + /** + * @private + */ + _getIndexScale: function() { + return this.getScaleForId(this._getIndexScaleId()); + }, + + reset: function() { + this._update(true); + }, + + /** + * @private + */ + destroy: function() { + if (this._data) { + unlistenArrayEvents(this._data, this); + } + }, + + createMetaDataset: function() { + var me = this; + var type = me.datasetElementType; + return type && new type({ + _chart: me.chart, + _datasetIndex: me.index + }); + }, + + createMetaData: function(index) { + var me = this; + var type = me.dataElementType; + return type && new type({ + _chart: me.chart, + _datasetIndex: me.index, + _index: index + }); + }, + + addElements: function() { + var me = this; + var meta = me.getMeta(); + var data = me.getDataset().data || []; + var metaData = meta.data; + var i, ilen; + + for (i = 0, ilen = data.length; i < ilen; ++i) { + metaData[i] = metaData[i] || me.createMetaData(i); + } + + meta.dataset = meta.dataset || me.createMetaDataset(); + }, + + addElementAndReset: function(index) { + var element = this.createMetaData(index); + this.getMeta().data.splice(index, 0, element); + this.updateElement(element, index, true); + }, + + buildOrUpdateElements: function() { + var me = this; + var dataset = me.getDataset(); + var data = dataset.data || (dataset.data = []); + + // In order to correctly handle data addition/deletion animation (an thus simulate + // real-time charts), we need to monitor these data modifications and synchronize + // the internal meta data accordingly. + if (me._data !== data) { + if (me._data) { + // This case happens when the user replaced the data array instance. + unlistenArrayEvents(me._data, me); + } + + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, me); + } + me._data = data; + } + + // Re-sync meta data in case the user replaced the data array or if we missed + // any updates and so make sure that we handle number of datapoints changing. + me.resyncElements(); + }, + + /** + * Returns the merged user-supplied and default dataset-level options + * @private + */ + _configure: function() { + var me = this; + me._config = helpers$1.merge({}, [ + me.chart.options.datasets[me._type], + me.getDataset(), + ], { + merger: function(key, target, source) { + if (key !== '_meta' && key !== 'data') { + helpers$1._merger(key, target, source); + } + } + }); + }, + + _update: function(reset) { + var me = this; + me._configure(); + me._cachedDataOpts = null; + me.update(reset); + }, + + update: helpers$1.noop, + + transition: function(easingValue) { + var meta = this.getMeta(); + var elements = meta.data || []; + var ilen = elements.length; + var i = 0; + + for (; i < ilen; ++i) { + elements[i].transition(easingValue); + } + + if (meta.dataset) { + meta.dataset.transition(easingValue); + } + }, + + draw: function() { + var meta = this.getMeta(); + var elements = meta.data || []; + var ilen = elements.length; + var i = 0; + + if (meta.dataset) { + meta.dataset.draw(); + } + + for (; i < ilen; ++i) { + elements[i].draw(); + } + }, + + /** + * Returns a set of predefined style properties that should be used to represent the dataset + * or the data if the index is specified + * @param {number} index - data index + * @return {IStyleInterface} style object + */ + getStyle: function(index) { + var me = this; + var meta = me.getMeta(); + var dataset = meta.dataset; + var style; + + me._configure(); + if (dataset && index === undefined) { + style = me._resolveDatasetElementOptions(dataset || {}); + } else { + index = index || 0; + style = me._resolveDataElementOptions(meta.data[index] || {}, index); + } + + if (style.fill === false || style.fill === null) { + style.backgroundColor = style.borderColor; + } + + return style; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function(element, hover) { + var me = this; + var chart = me.chart; + var datasetOpts = me._config; + var custom = element.custom || {}; + var options = chart.options.elements[me.datasetElementType.prototype._type] || {}; + var elementOptions = me._datasetElementOptions; + var values = {}; + var i, ilen, key, readKey; + + // Scriptable options + var context = { + chart: chart, + dataset: me.getDataset(), + datasetIndex: me.index, + hover: hover + }; + + for (i = 0, ilen = elementOptions.length; i < ilen; ++i) { + key = elementOptions[i]; + readKey = hover ? 'hover' + key.charAt(0).toUpperCase() + key.slice(1) : key; + values[key] = resolve([ + custom[readKey], + datasetOpts[readKey], + options[readKey] + ], context); + } + + return values; + }, + + /** + * @private + */ + _resolveDataElementOptions: function(element, index) { + var me = this; + var custom = element && element.custom; + var cached = me._cachedDataOpts; + if (cached && !custom) { + return cached; + } + var chart = me.chart; + var datasetOpts = me._config; + var options = chart.options.elements[me.dataElementType.prototype._type] || {}; + var elementOptions = me._dataElementOptions; + var values = {}; + + // Scriptable options + var context = { + chart: chart, + dataIndex: index, + dataset: me.getDataset(), + datasetIndex: me.index + }; + + // `resolve` sets cacheable to `false` if any option is indexed or scripted + var info = {cacheable: !custom}; + + var keys, i, ilen, key; + + custom = custom || {}; + + if (helpers$1.isArray(elementOptions)) { + for (i = 0, ilen = elementOptions.length; i < ilen; ++i) { + key = elementOptions[i]; + values[key] = resolve([ + custom[key], + datasetOpts[key], + options[key] + ], context, index, info); + } + } else { + keys = Object.keys(elementOptions); + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + values[key] = resolve([ + custom[key], + datasetOpts[elementOptions[key]], + datasetOpts[key], + options[key] + ], context, index, info); + } + } + + if (info.cacheable) { + me._cachedDataOpts = Object.freeze(values); + } + + return values; + }, + + removeHoverStyle: function(element) { + helpers$1.merge(element._model, element.$previousStyle || {}); + delete element.$previousStyle; + }, + + setHoverStyle: function(element) { + var dataset = this.chart.data.datasets[element._datasetIndex]; + var index = element._index; + var custom = element.custom || {}; + var model = element._model; + var getHoverColor = helpers$1.getHoverColor; + + element.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth + }; + + model.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index); + model.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index); + model.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index); + }, + + /** + * @private + */ + _removeDatasetHoverStyle: function() { + var element = this.getMeta().dataset; + + if (element) { + this.removeHoverStyle(element); + } + }, + + /** + * @private + */ + _setDatasetHoverStyle: function() { + var element = this.getMeta().dataset; + var prev = {}; + var i, ilen, key, keys, hoverOptions, model; + + if (!element) { + return; + } + + model = element._model; + hoverOptions = this._resolveDatasetElementOptions(element, true); + + keys = Object.keys(hoverOptions); + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + prev[key] = model[key]; + model[key] = hoverOptions[key]; + } + + element.$previousStyle = prev; + }, + + /** + * @private + */ + resyncElements: function() { + var me = this; + var meta = me.getMeta(); + var data = me.getDataset().data; + var numMeta = meta.data.length; + var numData = data.length; + + if (numData < numMeta) { + meta.data.splice(numData, numMeta - numData); + } else if (numData > numMeta) { + me.insertElements(numMeta, numData - numMeta); + } + }, + + /** + * @private + */ + insertElements: function(start, count) { + for (var i = 0; i < count; ++i) { + this.addElementAndReset(start + i); + } + }, + + /** + * @private + */ + onDataPush: function() { + var count = arguments.length; + this.insertElements(this.getDataset().data.length - count, count); + }, + + /** + * @private + */ + onDataPop: function() { + this.getMeta().data.pop(); + }, + + /** + * @private + */ + onDataShift: function() { + this.getMeta().data.shift(); + }, + + /** + * @private + */ + onDataSplice: function(start, count) { + this.getMeta().data.splice(start, count); + this.insertElements(start, arguments.length - 2); + }, + + /** + * @private + */ + onDataUnshift: function() { + this.insertElements(0, arguments.length); + } +}); + +DatasetController.extend = helpers$1.inherits; + +var core_datasetController = DatasetController; + +var TAU = Math.PI * 2; + +core_defaults._set('global', { + elements: { + arc: { + backgroundColor: core_defaults.global.defaultColor, + borderColor: '#fff', + borderWidth: 2, + borderAlign: 'center' + } + } +}); + +function clipArc(ctx, arc) { + var startAngle = arc.startAngle; + var endAngle = arc.endAngle; + var pixelMargin = arc.pixelMargin; + var angleMargin = pixelMargin / arc.outerRadius; + var x = arc.x; + var y = arc.y; + + // Draw an inner border by cliping the arc and drawing a double-width border + // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders + ctx.beginPath(); + ctx.arc(x, y, arc.outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (arc.innerRadius > pixelMargin) { + angleMargin = pixelMargin / arc.innerRadius; + ctx.arc(x, y, arc.innerRadius - pixelMargin, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + Math.PI / 2, startAngle - Math.PI / 2); + } + ctx.closePath(); + ctx.clip(); +} + +function drawFullCircleBorders(ctx, vm, arc, inner) { + var endAngle = arc.endAngle; + var i; + + if (inner) { + arc.endAngle = arc.startAngle + TAU; + clipArc(ctx, arc); + arc.endAngle = endAngle; + if (arc.endAngle === arc.startAngle && arc.fullCircles) { + arc.endAngle += TAU; + arc.fullCircles--; + } + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.startAngle + TAU, arc.startAngle, true); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.stroke(); + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.startAngle + TAU); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.stroke(); + } +} + +function drawBorder(ctx, vm, arc) { + var inner = vm.borderAlign === 'inner'; + + if (inner) { + ctx.lineWidth = vm.borderWidth * 2; + ctx.lineJoin = 'round'; + } else { + ctx.lineWidth = vm.borderWidth; + ctx.lineJoin = 'bevel'; + } + + if (arc.fullCircles) { + drawFullCircleBorders(ctx, vm, arc, inner); + } + + if (inner) { + clipArc(ctx, arc); + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + ctx.stroke(); +} + +var element_arc = core_element.extend({ + _type: 'arc', + + inLabelRange: function(mouseX) { + var vm = this._view; + + if (vm) { + return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2)); + } + return false; + }, + + inRange: function(chartX, chartY) { + var vm = this._view; + + if (vm) { + var pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY}); + var angle = pointRelativePosition.angle; + var distance = pointRelativePosition.distance; + + // Sanitise angle range + var startAngle = vm.startAngle; + var endAngle = vm.endAngle; + while (endAngle < startAngle) { + endAngle += TAU; + } + while (angle > endAngle) { + angle -= TAU; + } + while (angle < startAngle) { + angle += TAU; + } + + // Check if within the range of the open/close angle + var betweenAngles = (angle >= startAngle && angle <= endAngle); + var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius); + + return (betweenAngles && withinRadius); + } + return false; + }, + + getCenterPoint: function() { + var vm = this._view; + var halfAngle = (vm.startAngle + vm.endAngle) / 2; + var halfRadius = (vm.innerRadius + vm.outerRadius) / 2; + return { + x: vm.x + Math.cos(halfAngle) * halfRadius, + y: vm.y + Math.sin(halfAngle) * halfRadius + }; + }, + + getArea: function() { + var vm = this._view; + return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2)); + }, + + tooltipPosition: function() { + var vm = this._view; + var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2); + var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius; + + return { + x: vm.x + (Math.cos(centreAngle) * rangeFromCentre), + y: vm.y + (Math.sin(centreAngle) * rangeFromCentre) + }; + }, + + draw: function() { + var ctx = this._chart.ctx; + var vm = this._view; + var pixelMargin = (vm.borderAlign === 'inner') ? 0.33 : 0; + var arc = { + x: vm.x, + y: vm.y, + innerRadius: vm.innerRadius, + outerRadius: Math.max(vm.outerRadius - pixelMargin, 0), + pixelMargin: pixelMargin, + startAngle: vm.startAngle, + endAngle: vm.endAngle, + fullCircles: Math.floor(vm.circumference / TAU) + }; + var i; + + ctx.save(); + + ctx.fillStyle = vm.backgroundColor; + ctx.strokeStyle = vm.borderColor; + + if (arc.fullCircles) { + arc.endAngle = arc.startAngle + TAU; + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.fill(); + } + arc.endAngle = arc.startAngle + vm.circumference % TAU; + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + ctx.fill(); + + if (vm.borderWidth) { + drawBorder(ctx, vm, arc); + } + + ctx.restore(); + } +}); + +var valueOrDefault$1 = helpers$1.valueOrDefault; + +var defaultColor = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + line: { + tension: 0.4, + backgroundColor: defaultColor, + borderWidth: 3, + borderColor: defaultColor, + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0.0, + borderJoinStyle: 'miter', + capBezierPoints: true, + fill: true, // do we fill in the area between the line and its base axis + } + } +}); + +var element_line = core_element.extend({ + _type: 'line', + + draw: function() { + var me = this; + var vm = me._view; + var ctx = me._chart.ctx; + var spanGaps = vm.spanGaps; + var points = me._children.slice(); // clone array + var globalDefaults = core_defaults.global; + var globalOptionLineElements = globalDefaults.elements.line; + var lastDrawnIndex = -1; + var closePath = me._loop; + var index, previous, currentVM; + + if (!points.length) { + return; + } + + if (me._loop) { + for (index = 0; index < points.length; ++index) { + previous = helpers$1.previousItem(points, index); + // If the line has an open path, shift the point array + if (!points[index]._view.skip && previous._view.skip) { + points = points.slice(index).concat(points.slice(0, index)); + closePath = spanGaps; + break; + } + } + // If the line has a close path, add the first point again + if (closePath) { + points.push(points[0]); + } + } + + ctx.save(); + + // Stroke Line Options + ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle; + + // IE 9 and 10 do not support line dash + if (ctx.setLineDash) { + ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash); + } + + ctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset); + ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle; + ctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth); + ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor; + + // Stroke Line + ctx.beginPath(); + + // First point moves to it's starting position no matter what + currentVM = points[0]._view; + if (!currentVM.skip) { + ctx.moveTo(currentVM.x, currentVM.y); + lastDrawnIndex = 0; + } + + for (index = 1; index < points.length; ++index) { + currentVM = points[index]._view; + previous = lastDrawnIndex === -1 ? helpers$1.previousItem(points, index) : points[lastDrawnIndex]; + + if (!currentVM.skip) { + if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) { + // There was a gap and this is the first point after the gap + ctx.moveTo(currentVM.x, currentVM.y); + } else { + // Line to next point + helpers$1.canvas.lineTo(ctx, previous._view, currentVM); + } + lastDrawnIndex = index; + } + } + + if (closePath) { + ctx.closePath(); + } + + ctx.stroke(); + ctx.restore(); + } +}); + +var valueOrDefault$2 = helpers$1.valueOrDefault; + +var defaultColor$1 = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + point: { + radius: 3, + pointStyle: 'circle', + backgroundColor: defaultColor$1, + borderColor: defaultColor$1, + borderWidth: 1, + // Hover + hitRadius: 1, + hoverRadius: 4, + hoverBorderWidth: 1 + } + } +}); + +function xRange(mouseX) { + var vm = this._view; + return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false; +} + +function yRange(mouseY) { + var vm = this._view; + return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false; +} + +var element_point = core_element.extend({ + _type: 'point', + + inRange: function(mouseX, mouseY) { + var vm = this._view; + return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false; + }, + + inLabelRange: xRange, + inXRange: xRange, + inYRange: yRange, + + getCenterPoint: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y + }; + }, + + getArea: function() { + return Math.PI * Math.pow(this._view.radius, 2); + }, + + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y, + padding: vm.radius + vm.borderWidth + }; + }, + + draw: function(chartArea) { + var vm = this._view; + var ctx = this._chart.ctx; + var pointStyle = vm.pointStyle; + var rotation = vm.rotation; + var radius = vm.radius; + var x = vm.x; + var y = vm.y; + var globalDefaults = core_defaults.global; + var defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow + + if (vm.skip) { + return; + } + + // Clipping for Points. + if (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) { + ctx.strokeStyle = vm.borderColor || defaultColor; + ctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth); + ctx.fillStyle = vm.backgroundColor || defaultColor; + helpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation); + } + } +}); + +var defaultColor$2 = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + rectangle: { + backgroundColor: defaultColor$2, + borderColor: defaultColor$2, + borderSkipped: 'bottom', + borderWidth: 0 + } + } +}); + +function isVertical(vm) { + return vm && vm.width !== undefined; +} + +/** + * Helper function to get the bounds of the bar regardless of the orientation + * @param bar {Chart.Element.Rectangle} the bar + * @return {Bounds} bounds of the bar + * @private + */ +function getBarBounds(vm) { + var x1, x2, y1, y2, half; + + if (isVertical(vm)) { + half = vm.width / 2; + x1 = vm.x - half; + x2 = vm.x + half; + y1 = Math.min(vm.y, vm.base); + y2 = Math.max(vm.y, vm.base); + } else { + half = vm.height / 2; + x1 = Math.min(vm.x, vm.base); + x2 = Math.max(vm.x, vm.base); + y1 = vm.y - half; + y2 = vm.y + half; + } + + return { + left: x1, + top: y1, + right: x2, + bottom: y2 + }; +} + +function swap(orig, v1, v2) { + return orig === v1 ? v2 : orig === v2 ? v1 : orig; +} + +function parseBorderSkipped(vm) { + var edge = vm.borderSkipped; + var res = {}; + + if (!edge) { + return res; + } + + if (vm.horizontal) { + if (vm.base > vm.x) { + edge = swap(edge, 'left', 'right'); + } + } else if (vm.base < vm.y) { + edge = swap(edge, 'bottom', 'top'); + } + + res[edge] = true; + return res; +} + +function parseBorderWidth(vm, maxW, maxH) { + var value = vm.borderWidth; + var skip = parseBorderSkipped(vm); + var t, r, b, l; + + if (helpers$1.isObject(value)) { + t = +value.top || 0; + r = +value.right || 0; + b = +value.bottom || 0; + l = +value.left || 0; + } else { + t = r = b = l = +value || 0; + } + + return { + t: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t, + r: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r, + b: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b, + l: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l + }; +} + +function boundingRects(vm) { + var bounds = getBarBounds(vm); + var width = bounds.right - bounds.left; + var height = bounds.bottom - bounds.top; + var border = parseBorderWidth(vm, width / 2, height / 2); + + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b + } + }; +} + +function inRange(vm, x, y) { + var skipX = x === null; + var skipY = y === null; + var bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm); + + return bounds + && (skipX || x >= bounds.left && x <= bounds.right) + && (skipY || y >= bounds.top && y <= bounds.bottom); +} + +var element_rectangle = core_element.extend({ + _type: 'rectangle', + + draw: function() { + var ctx = this._chart.ctx; + var vm = this._view; + var rects = boundingRects(vm); + var outer = rects.outer; + var inner = rects.inner; + + ctx.fillStyle = vm.backgroundColor; + ctx.fillRect(outer.x, outer.y, outer.w, outer.h); + + if (outer.w === inner.w && outer.h === inner.h) { + return; + } + + ctx.save(); + ctx.beginPath(); + ctx.rect(outer.x, outer.y, outer.w, outer.h); + ctx.clip(); + ctx.fillStyle = vm.borderColor; + ctx.rect(inner.x, inner.y, inner.w, inner.h); + ctx.fill('evenodd'); + ctx.restore(); + }, + + height: function() { + var vm = this._view; + return vm.base - vm.y; + }, + + inRange: function(mouseX, mouseY) { + return inRange(this._view, mouseX, mouseY); + }, + + inLabelRange: function(mouseX, mouseY) { + var vm = this._view; + return isVertical(vm) + ? inRange(vm, mouseX, null) + : inRange(vm, null, mouseY); + }, + + inXRange: function(mouseX) { + return inRange(this._view, mouseX, null); + }, + + inYRange: function(mouseY) { + return inRange(this._view, null, mouseY); + }, + + getCenterPoint: function() { + var vm = this._view; + var x, y; + if (isVertical(vm)) { + x = vm.x; + y = (vm.y + vm.base) / 2; + } else { + x = (vm.x + vm.base) / 2; + y = vm.y; + } + + return {x: x, y: y}; + }, + + getArea: function() { + var vm = this._view; + + return isVertical(vm) + ? vm.width * Math.abs(vm.y - vm.base) + : vm.height * Math.abs(vm.x - vm.base); + }, + + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y + }; + } +}); + +var elements = {}; +var Arc = element_arc; +var Line = element_line; +var Point = element_point; +var Rectangle = element_rectangle; +elements.Arc = Arc; +elements.Line = Line; +elements.Point = Point; +elements.Rectangle = Rectangle; + +var deprecated = helpers$1._deprecated; +var valueOrDefault$3 = helpers$1.valueOrDefault; + +core_defaults._set('bar', { + hover: { + mode: 'label' + }, + + scales: { + xAxes: [{ + type: 'category', + offset: true, + gridLines: { + offsetGridLines: true + } + }], + + yAxes: [{ + type: 'linear' + }] + } +}); + +core_defaults._set('global', { + datasets: { + bar: { + categoryPercentage: 0.8, + barPercentage: 0.9 + } + } +}); + +/** + * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap. + * @private + */ +function computeMinSampleSize(scale, pixels) { + var min = scale._length; + var prev, curr, i, ilen; + + for (i = 1, ilen = pixels.length; i < ilen; ++i) { + min = Math.min(min, Math.abs(pixels[i] - pixels[i - 1])); + } + + for (i = 0, ilen = scale.getTicks().length; i < ilen; ++i) { + curr = scale.getPixelForTick(i); + min = i > 0 ? Math.min(min, Math.abs(curr - prev)) : min; + prev = curr; + } + + return min; +} + +/** + * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null, + * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This + * mode currently always generates bars equally sized (until we introduce scriptable options?). + * @private + */ +function computeFitCategoryTraits(index, ruler, options) { + var thickness = options.barThickness; + var count = ruler.stackCount; + var curr = ruler.pixels[index]; + var min = helpers$1.isNullOrUndef(thickness) + ? computeMinSampleSize(ruler.scale, ruler.pixels) + : -1; + var size, ratio; + + if (helpers$1.isNullOrUndef(thickness)) { + size = min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + // When bar thickness is enforced, category and bar percentages are ignored. + // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%') + // and deprecate barPercentage since this value is ignored when thickness is absolute. + size = thickness * count; + ratio = 1; + } + + return { + chunk: size / count, + ratio: ratio, + start: curr - (size / 2) + }; +} + +/** + * Computes an "optimal" category that globally arranges bars side by side (no gap when + * percentage options are 1), based on the previous and following categories. This mode + * generates bars with different widths when data are not evenly spaced. + * @private + */ +function computeFlexCategoryTraits(index, ruler, options) { + var pixels = ruler.pixels; + var curr = pixels[index]; + var prev = index > 0 ? pixels[index - 1] : null; + var next = index < pixels.length - 1 ? pixels[index + 1] : null; + var percent = options.categoryPercentage; + var start, size; + + if (prev === null) { + // first data: its size is double based on the next point or, + // if it's also the last data, we use the scale size. + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + + if (next === null) { + // last data: its size is also double based on the previous point. + next = curr + curr - prev; + } + + start = curr - (curr - Math.min(prev, next)) / 2 * percent; + size = Math.abs(next - prev) / 2 * percent; + + return { + chunk: size / ruler.stackCount, + ratio: options.barPercentage, + start: start + }; +} + +var controller_bar = core_datasetController.extend({ + + dataElementType: elements.Rectangle, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderSkipped', + 'borderWidth', + 'barPercentage', + 'barThickness', + 'categoryPercentage', + 'maxBarThickness', + 'minBarLength' + ], + + initialize: function() { + var me = this; + var meta, scaleOpts; + + core_datasetController.prototype.initialize.apply(me, arguments); + + meta = me.getMeta(); + meta.stack = me.getDataset().stack; + meta.bar = true; + + scaleOpts = me._getIndexScale().options; + deprecated('bar chart', scaleOpts.barPercentage, 'scales.[x/y]Axes.barPercentage', 'dataset.barPercentage'); + deprecated('bar chart', scaleOpts.barThickness, 'scales.[x/y]Axes.barThickness', 'dataset.barThickness'); + deprecated('bar chart', scaleOpts.categoryPercentage, 'scales.[x/y]Axes.categoryPercentage', 'dataset.categoryPercentage'); + deprecated('bar chart', me._getValueScale().options.minBarLength, 'scales.[x/y]Axes.minBarLength', 'dataset.minBarLength'); + deprecated('bar chart', scaleOpts.maxBarThickness, 'scales.[x/y]Axes.maxBarThickness', 'dataset.maxBarThickness'); + }, + + update: function(reset) { + var me = this; + var rects = me.getMeta().data; + var i, ilen; + + me._ruler = me.getRuler(); + + for (i = 0, ilen = rects.length; i < ilen; ++i) { + me.updateElement(rects[i], i, reset); + } + }, + + updateElement: function(rectangle, index, reset) { + var me = this; + var meta = me.getMeta(); + var dataset = me.getDataset(); + var options = me._resolveDataElementOptions(rectangle, index); + + rectangle._xScale = me.getScaleForId(meta.xAxisID); + rectangle._yScale = me.getScaleForId(meta.yAxisID); + rectangle._datasetIndex = me.index; + rectangle._index = index; + rectangle._model = { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderSkipped: options.borderSkipped, + borderWidth: options.borderWidth, + datasetLabel: dataset.label, + label: me.chart.data.labels[index] + }; + + if (helpers$1.isArray(dataset.data[index])) { + rectangle._model.borderSkipped = null; + } + + me._updateElementGeometry(rectangle, index, reset, options); + + rectangle.pivot(); + }, + + /** + * @private + */ + _updateElementGeometry: function(rectangle, index, reset, options) { + var me = this; + var model = rectangle._model; + var vscale = me._getValueScale(); + var base = vscale.getBasePixel(); + var horizontal = vscale.isHorizontal(); + var ruler = me._ruler || me.getRuler(); + var vpixels = me.calculateBarValuePixels(me.index, index, options); + var ipixels = me.calculateBarIndexPixels(me.index, index, ruler, options); + + model.horizontal = horizontal; + model.base = reset ? base : vpixels.base; + model.x = horizontal ? reset ? base : vpixels.head : ipixels.center; + model.y = horizontal ? ipixels.center : reset ? base : vpixels.head; + model.height = horizontal ? ipixels.size : undefined; + model.width = horizontal ? undefined : ipixels.size; + }, + + /** + * Returns the stacks based on groups and bar visibility. + * @param {number} [last] - The dataset index + * @returns {string[]} The list of stack IDs + * @private + */ + _getStacks: function(last) { + var me = this; + var scale = me._getIndexScale(); + var metasets = scale._getMatchingVisibleMetas(me._type); + var stacked = scale.options.stacked; + var ilen = metasets.length; + var stacks = []; + var i, meta; + + for (i = 0; i < ilen; ++i) { + meta = metasets[i]; + // stacked | meta.stack + // | found | not found | undefined + // false | x | x | x + // true | | x | + // undefined | | x | x + if (stacked === false || stacks.indexOf(meta.stack) === -1 || + (stacked === undefined && meta.stack === undefined)) { + stacks.push(meta.stack); + } + if (meta.index === last) { + break; + } + } + + return stacks; + }, + + /** + * Returns the effective number of stacks based on groups and bar visibility. + * @private + */ + getStackCount: function() { + return this._getStacks().length; + }, + + /** + * Returns the stack index for the given dataset based on groups and bar visibility. + * @param {number} [datasetIndex] - The dataset index + * @param {string} [name] - The stack name to find + * @returns {number} The stack index + * @private + */ + getStackIndex: function(datasetIndex, name) { + var stacks = this._getStacks(datasetIndex); + var index = (name !== undefined) + ? stacks.indexOf(name) + : -1; // indexOf returns -1 if element is not present + + return (index === -1) + ? stacks.length - 1 + : index; + }, + + /** + * @private + */ + getRuler: function() { + var me = this; + var scale = me._getIndexScale(); + var pixels = []; + var i, ilen; + + for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) { + pixels.push(scale.getPixelForValue(null, i, me.index)); + } + + return { + pixels: pixels, + start: scale._startPixel, + end: scale._endPixel, + stackCount: me.getStackCount(), + scale: scale + }; + }, + + /** + * Note: pixel values are not clamped to the scale area. + * @private + */ + calculateBarValuePixels: function(datasetIndex, index, options) { + var me = this; + var chart = me.chart; + var scale = me._getValueScale(); + var isHorizontal = scale.isHorizontal(); + var datasets = chart.data.datasets; + var metasets = scale._getMatchingVisibleMetas(me._type); + var value = scale._parseValue(datasets[datasetIndex].data[index]); + var minBarLength = options.minBarLength; + var stacked = scale.options.stacked; + var stack = me.getMeta().stack; + var start = value.start === undefined ? 0 : value.max >= 0 && value.min >= 0 ? value.min : value.max; + var length = value.start === undefined ? value.end : value.max >= 0 && value.min >= 0 ? value.max - value.min : value.min - value.max; + var ilen = metasets.length; + var i, imeta, ivalue, base, head, size, stackLength; + + if (stacked || (stacked === undefined && stack !== undefined)) { + for (i = 0; i < ilen; ++i) { + imeta = metasets[i]; + + if (imeta.index === datasetIndex) { + break; + } + + if (imeta.stack === stack) { + stackLength = scale._parseValue(datasets[imeta.index].data[index]); + ivalue = stackLength.start === undefined ? stackLength.end : stackLength.min >= 0 && stackLength.max >= 0 ? stackLength.max : stackLength.min; + + if ((value.min < 0 && ivalue < 0) || (value.max >= 0 && ivalue > 0)) { + start += ivalue; + } + } + } + } + + base = scale.getPixelForValue(start); + head = scale.getPixelForValue(start + length); + size = head - base; + + if (minBarLength !== undefined && Math.abs(size) < minBarLength) { + size = minBarLength; + if (length >= 0 && !isHorizontal || length < 0 && isHorizontal) { + head = base - minBarLength; + } else { + head = base + minBarLength; + } + } + + return { + size: size, + base: base, + head: head, + center: head + size / 2 + }; + }, + + /** + * @private + */ + calculateBarIndexPixels: function(datasetIndex, index, ruler, options) { + var me = this; + var range = options.barThickness === 'flex' + ? computeFlexCategoryTraits(index, ruler, options) + : computeFitCategoryTraits(index, ruler, options); + + var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack); + var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); + var size = Math.min( + valueOrDefault$3(options.maxBarThickness, Infinity), + range.chunk * range.ratio); + + return { + base: center - size / 2, + head: center + size / 2, + center: center, + size: size + }; + }, + + draw: function() { + var me = this; + var chart = me.chart; + var scale = me._getValueScale(); + var rects = me.getMeta().data; + var dataset = me.getDataset(); + var ilen = rects.length; + var i = 0; + + helpers$1.canvas.clipArea(chart.ctx, chart.chartArea); + + for (; i < ilen; ++i) { + var val = scale._parseValue(dataset.data[i]); + if (!isNaN(val.min) && !isNaN(val.max)) { + rects[i].draw(); + } + } + + helpers$1.canvas.unclipArea(chart.ctx); + }, + + /** + * @private + */ + _resolveDataElementOptions: function() { + var me = this; + var values = helpers$1.extend({}, core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments)); + var indexOpts = me._getIndexScale().options; + var valueOpts = me._getValueScale().options; + + values.barPercentage = valueOrDefault$3(indexOpts.barPercentage, values.barPercentage); + values.barThickness = valueOrDefault$3(indexOpts.barThickness, values.barThickness); + values.categoryPercentage = valueOrDefault$3(indexOpts.categoryPercentage, values.categoryPercentage); + values.maxBarThickness = valueOrDefault$3(indexOpts.maxBarThickness, values.maxBarThickness); + values.minBarLength = valueOrDefault$3(valueOpts.minBarLength, values.minBarLength); + + return values; + } + +}); + +var valueOrDefault$4 = helpers$1.valueOrDefault; +var resolve$1 = helpers$1.options.resolve; + +core_defaults._set('bubble', { + hover: { + mode: 'single' + }, + + scales: { + xAxes: [{ + type: 'linear', // bubble should probably use a linear scale by default + position: 'bottom', + id: 'x-axis-0' // need an ID so datasets can reference the scale + }], + yAxes: [{ + type: 'linear', + position: 'left', + id: 'y-axis-0' + }] + }, + + tooltips: { + callbacks: { + title: function() { + // Title doesn't make sense for scatter since we format the data as a point + return ''; + }, + label: function(item, data) { + var datasetLabel = data.datasets[item.datasetIndex].label || ''; + var dataPoint = data.datasets[item.datasetIndex].data[item.index]; + return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')'; + } + } + } +}); + +var controller_bubble = core_datasetController.extend({ + /** + * @protected + */ + dataElementType: elements.Point, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + 'hoverRadius', + 'hitRadius', + 'pointStyle', + 'rotation' + ], + + /** + * @protected + */ + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var points = meta.data; + + // Update Points + helpers$1.each(points, function(point, index) { + me.updateElement(point, index, reset); + }); + }, + + /** + * @protected + */ + updateElement: function(point, index, reset) { + var me = this; + var meta = me.getMeta(); + var custom = point.custom || {}; + var xScale = me.getScaleForId(meta.xAxisID); + var yScale = me.getScaleForId(meta.yAxisID); + var options = me._resolveDataElementOptions(point, index); + var data = me.getDataset().data[index]; + var dsIndex = me.index; + + var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex); + var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex); + + point._xScale = xScale; + point._yScale = yScale; + point._options = options; + point._datasetIndex = dsIndex; + point._index = index; + point._model = { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + hitRadius: options.hitRadius, + pointStyle: options.pointStyle, + rotation: options.rotation, + radius: reset ? 0 : options.radius, + skip: custom.skip || isNaN(x) || isNaN(y), + x: x, + y: y, + }; + + point.pivot(); + }, + + /** + * @protected + */ + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth); + model.radius = options.radius + options.hoverRadius; + }, + + /** + * @private + */ + _resolveDataElementOptions: function(point, index) { + var me = this; + var chart = me.chart; + var dataset = me.getDataset(); + var custom = point.custom || {}; + var data = dataset.data[index] || {}; + var values = core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments); + + // Scriptable options + var context = { + chart: chart, + dataIndex: index, + dataset: dataset, + datasetIndex: me.index + }; + + // In case values were cached (and thus frozen), we need to clone the values + if (me._cachedDataOpts === values) { + values = helpers$1.extend({}, values); + } + + // Custom radius resolution + values.radius = resolve$1([ + custom.radius, + data.r, + me._config.radius, + chart.options.elements.point.radius + ], context, index); + + return values; + } +}); + +var valueOrDefault$5 = helpers$1.valueOrDefault; + +var PI$1 = Math.PI; +var DOUBLE_PI$1 = PI$1 * 2; +var HALF_PI$1 = PI$1 / 2; + +core_defaults._set('doughnut', { + animation: { + // Boolean - Whether we animate the rotation of the Doughnut + animateRotate: true, + // Boolean - Whether we animate scaling the Doughnut from the centre + animateScale: false + }, + hover: { + mode: 'single' + }, + legendCallback: function(chart) { + var list = document.createElement('ul'); + var data = chart.data; + var datasets = data.datasets; + var labels = data.labels; + var i, ilen, listItem, listItemSpan; + + list.setAttribute('class', chart.id + '-legend'); + if (datasets.length) { + for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) { + listItem = list.appendChild(document.createElement('li')); + listItemSpan = listItem.appendChild(document.createElement('span')); + listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i]; + if (labels[i]) { + listItem.appendChild(document.createTextNode(labels[i])); + } + } + } + + return list.outerHTML; + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var style = meta.controller.getStyle(i); + + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }); + } + return []; + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + // toggle visibility of index if exists + if (meta.data[index]) { + meta.data[index].hidden = !meta.data[index].hidden; + } + } + + chart.update(); + } + }, + + // The percentage of the chart that we cut out of the middle. + cutoutPercentage: 50, + + // The rotation of the chart, where the first data arc begins. + rotation: -HALF_PI$1, + + // The total circumference of the chart. + circumference: DOUBLE_PI$1, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(tooltipItem, data) { + var dataLabel = data.labels[tooltipItem.index]; + var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; + + if (helpers$1.isArray(dataLabel)) { + // show value on first line of multiline label + // need to clone because we are changing the value + dataLabel = dataLabel.slice(); + dataLabel[0] += value; + } else { + dataLabel += value; + } + + return dataLabel; + } + } + } +}); + +var controller_doughnut = core_datasetController.extend({ + + dataElementType: elements.Arc, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'borderAlign', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + ], + + // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly + getRingIndex: function(datasetIndex) { + var ringIndex = 0; + + for (var j = 0; j < datasetIndex; ++j) { + if (this.chart.isDatasetVisible(j)) { + ++ringIndex; + } + } + + return ringIndex; + }, + + update: function(reset) { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var ratioX = 1; + var ratioY = 1; + var offsetX = 0; + var offsetY = 0; + var meta = me.getMeta(); + var arcs = meta.data; + var cutout = opts.cutoutPercentage / 100 || 0; + var circumference = opts.circumference; + var chartWeight = me._getRingWeight(me.index); + var maxWidth, maxHeight, i, ilen; + + // If the chart's circumference isn't a full circle, calculate size as a ratio of the width/height of the arc + if (circumference < DOUBLE_PI$1) { + var startAngle = opts.rotation % DOUBLE_PI$1; + startAngle += startAngle >= PI$1 ? -DOUBLE_PI$1 : startAngle < -PI$1 ? DOUBLE_PI$1 : 0; + var endAngle = startAngle + circumference; + var startX = Math.cos(startAngle); + var startY = Math.sin(startAngle); + var endX = Math.cos(endAngle); + var endY = Math.sin(endAngle); + var contains0 = (startAngle <= 0 && endAngle >= 0) || endAngle >= DOUBLE_PI$1; + var contains90 = (startAngle <= HALF_PI$1 && endAngle >= HALF_PI$1) || endAngle >= DOUBLE_PI$1 + HALF_PI$1; + var contains180 = startAngle === -PI$1 || endAngle >= PI$1; + var contains270 = (startAngle <= -HALF_PI$1 && endAngle >= -HALF_PI$1) || endAngle >= PI$1 + HALF_PI$1; + var minX = contains180 ? -1 : Math.min(startX, startX * cutout, endX, endX * cutout); + var minY = contains270 ? -1 : Math.min(startY, startY * cutout, endY, endY * cutout); + var maxX = contains0 ? 1 : Math.max(startX, startX * cutout, endX, endX * cutout); + var maxY = contains90 ? 1 : Math.max(startY, startY * cutout, endY, endY * cutout); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arcs[i]._options = me._resolveDataElementOptions(arcs[i], i); + } + + chart.borderWidth = me.getMaxBorderWidth(); + maxWidth = (chartArea.right - chartArea.left - chart.borderWidth) / ratioX; + maxHeight = (chartArea.bottom - chartArea.top - chart.borderWidth) / ratioY; + chart.outerRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + chart.innerRadius = Math.max(chart.outerRadius * cutout, 0); + chart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1); + chart.offsetX = offsetX * chart.outerRadius; + chart.offsetY = offsetY * chart.outerRadius; + + meta.total = me.calculateTotal(); + + me.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index); + me.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0); + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + me.updateElement(arcs[i], i, reset); + } + }, + + updateElement: function(arc, index, reset) { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var animationOpts = opts.animation; + var centerX = (chartArea.left + chartArea.right) / 2; + var centerY = (chartArea.top + chartArea.bottom) / 2; + var startAngle = opts.rotation; // non reset case handled later + var endAngle = opts.rotation; // non reset case handled later + var dataset = me.getDataset(); + var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / DOUBLE_PI$1); + var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius; + var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius; + var options = arc._options || {}; + + helpers$1.extend(arc, { + // Utility + _datasetIndex: me.index, + _index: index, + + // Desired view properties + _model: { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + borderAlign: options.borderAlign, + x: centerX + chart.offsetX, + y: centerY + chart.offsetY, + startAngle: startAngle, + endAngle: endAngle, + circumference: circumference, + outerRadius: outerRadius, + innerRadius: innerRadius, + label: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index]) + } + }); + + var model = arc._model; + + // Set correct angles if not resetting + if (!reset || !animationOpts.animateRotate) { + if (index === 0) { + model.startAngle = opts.rotation; + } else { + model.startAngle = me.getMeta().data[index - 1]._model.endAngle; + } + + model.endAngle = model.startAngle + model.circumference; + } + + arc.pivot(); + }, + + calculateTotal: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var total = 0; + var value; + + helpers$1.each(meta.data, function(element, index) { + value = dataset.data[index]; + if (!isNaN(value) && !element.hidden) { + total += Math.abs(value); + } + }); + + /* if (total === 0) { + total = NaN; + }*/ + + return total; + }, + + calculateCircumference: function(value) { + var total = this.getMeta().total; + if (total > 0 && !isNaN(value)) { + return DOUBLE_PI$1 * (Math.abs(value) / total); + } + return 0; + }, + + // gets the max border or hover width to properly scale pie charts + getMaxBorderWidth: function(arcs) { + var me = this; + var max = 0; + var chart = me.chart; + var i, ilen, meta, arc, controller, options, borderWidth, hoverWidth; + + if (!arcs) { + // Find the outmost visible dataset + for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + if (i !== me.index) { + controller = meta.controller; + } + break; + } + } + } + + if (!arcs) { + return 0; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arc = arcs[i]; + if (controller) { + controller._configure(); + options = controller._resolveDataElementOptions(arc, i); + } else { + options = arc._options; + } + if (options.borderAlign !== 'inner') { + borderWidth = options.borderWidth; + hoverWidth = options.hoverBorderWidth; + + max = borderWidth > max ? borderWidth : max; + max = hoverWidth > max ? hoverWidth : max; + } + } + return max; + }, + + /** + * @protected + */ + setHoverStyle: function(arc) { + var model = arc._model; + var options = arc._options; + var getHoverColor = helpers$1.getHoverColor; + + arc.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + }; + + model.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth); + }, + + /** + * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly + * @private + */ + _getRingWeightOffset: function(datasetIndex) { + var ringWeightOffset = 0; + + for (var i = 0; i < datasetIndex; ++i) { + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + + return ringWeightOffset; + }, + + /** + * @private + */ + _getRingWeight: function(dataSetIndex) { + return Math.max(valueOrDefault$5(this.chart.data.datasets[dataSetIndex].weight, 1), 0); + }, + + /** + * Returns the sum of all visibile data set weights. This value can be 0. + * @private + */ + _getVisibleDatasetWeightTotal: function() { + return this._getRingWeightOffset(this.chart.data.datasets.length); + } +}); + +core_defaults._set('horizontalBar', { + hover: { + mode: 'index', + axis: 'y' + }, + + scales: { + xAxes: [{ + type: 'linear', + position: 'bottom' + }], + + yAxes: [{ + type: 'category', + position: 'left', + offset: true, + gridLines: { + offsetGridLines: true + } + }] + }, + + elements: { + rectangle: { + borderSkipped: 'left' + } + }, + + tooltips: { + mode: 'index', + axis: 'y' + } +}); + +core_defaults._set('global', { + datasets: { + horizontalBar: { + categoryPercentage: 0.8, + barPercentage: 0.9 + } + } +}); + +var controller_horizontalBar = controller_bar.extend({ + /** + * @private + */ + _getValueScaleId: function() { + return this.getMeta().xAxisID; + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.getMeta().yAxisID; + } +}); + +var valueOrDefault$6 = helpers$1.valueOrDefault; +var resolve$2 = helpers$1.options.resolve; +var isPointInArea = helpers$1.canvas._isPointInArea; + +core_defaults._set('line', { + showLines: true, + spanGaps: false, + + hover: { + mode: 'label' + }, + + scales: { + xAxes: [{ + type: 'category', + id: 'x-axis-0' + }], + yAxes: [{ + type: 'linear', + id: 'y-axis-0' + }] + } +}); + +function scaleClip(scale, halfBorderWidth) { + var tickOpts = scale && scale.options.ticks || {}; + var reverse = tickOpts.reverse; + var min = tickOpts.min === undefined ? halfBorderWidth : 0; + var max = tickOpts.max === undefined ? halfBorderWidth : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; +} + +function defaultClip(xScale, yScale, borderWidth) { + var halfBorderWidth = borderWidth / 2; + var x = scaleClip(xScale, halfBorderWidth); + var y = scaleClip(yScale, halfBorderWidth); + + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; +} + +function toClip(value) { + var t, r, b, l; + + if (helpers$1.isObject(value)) { + t = value.top; + r = value.right; + b = value.bottom; + l = value.left; + } else { + t = r = b = l = value; + } + + return { + top: t, + right: r, + bottom: b, + left: l + }; +} + + +var controller_line = core_datasetController.extend({ + + datasetElementType: elements.Line, + + dataElementType: elements.Point, + + /** + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderCapStyle', + 'borderColor', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'borderWidth', + 'cubicInterpolationMode', + 'fill' + ], + + /** + * @private + */ + _dataElementOptions: { + backgroundColor: 'pointBackgroundColor', + borderColor: 'pointBorderColor', + borderWidth: 'pointBorderWidth', + hitRadius: 'pointHitRadius', + hoverBackgroundColor: 'pointHoverBackgroundColor', + hoverBorderColor: 'pointHoverBorderColor', + hoverBorderWidth: 'pointHoverBorderWidth', + hoverRadius: 'pointHoverRadius', + pointStyle: 'pointStyle', + radius: 'pointRadius', + rotation: 'pointRotation' + }, + + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var line = meta.dataset; + var points = meta.data || []; + var options = me.chart.options; + var config = me._config; + var showLine = me._showLine = valueOrDefault$6(config.showLine, options.showLines); + var i, ilen; + + me._xScale = me.getScaleForId(meta.xAxisID); + me._yScale = me.getScaleForId(meta.yAxisID); + + // Update Line + if (showLine) { + // Compatibility: If the properties are defined with only the old name, use those values + if (config.tension !== undefined && config.lineTension === undefined) { + config.lineTension = config.tension; + } + + // Utility + line._scale = me._yScale; + line._datasetIndex = me.index; + // Data + line._children = points; + // Model + line._model = me._resolveDatasetElementOptions(line); + + line.pivot(); + } + + // Update Points + for (i = 0, ilen = points.length; i < ilen; ++i) { + me.updateElement(points[i], i, reset); + } + + if (showLine && line._model.tension !== 0) { + me.updateBezierControlPoints(); + } + + // Now pivot the point for animation + for (i = 0, ilen = points.length; i < ilen; ++i) { + points[i].pivot(); + } + }, + + updateElement: function(point, index, reset) { + var me = this; + var meta = me.getMeta(); + var custom = point.custom || {}; + var dataset = me.getDataset(); + var datasetIndex = me.index; + var value = dataset.data[index]; + var xScale = me._xScale; + var yScale = me._yScale; + var lineModel = meta.dataset._model; + var x, y; + + var options = me._resolveDataElementOptions(point, index); + + x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex); + y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex); + + // Utility + point._xScale = xScale; + point._yScale = yScale; + point._options = options; + point._datasetIndex = datasetIndex; + point._index = index; + + // Desired view properties + point._model = { + x: x, + y: y, + skip: custom.skip || isNaN(x) || isNaN(y), + // Appearance + radius: options.radius, + pointStyle: options.pointStyle, + rotation: options.rotation, + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + tension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0), + steppedLine: lineModel ? lineModel.steppedLine : false, + // Tooltip + hitRadius: options.hitRadius + }; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function(element) { + var me = this; + var config = me._config; + var custom = element.custom || {}; + var options = me.chart.options; + var lineOptions = options.elements.line; + var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments); + + // The default behavior of lines is to break at null values, according + // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158 + // This option gives lines the ability to span gaps + values.spanGaps = valueOrDefault$6(config.spanGaps, options.spanGaps); + values.tension = valueOrDefault$6(config.lineTension, lineOptions.tension); + values.steppedLine = resolve$2([custom.steppedLine, config.steppedLine, lineOptions.stepped]); + values.clip = toClip(valueOrDefault$6(config.clip, defaultClip(me._xScale, me._yScale, values.borderWidth))); + + return values; + }, + + calculatePointY: function(value, index, datasetIndex) { + var me = this; + var chart = me.chart; + var yScale = me._yScale; + var sumPos = 0; + var sumNeg = 0; + var i, ds, dsMeta, stackedRightValue, rightValue, metasets, ilen; + + if (yScale.options.stacked) { + rightValue = +yScale.getRightValue(value); + metasets = chart._getSortedVisibleDatasetMetas(); + ilen = metasets.length; + + for (i = 0; i < ilen; ++i) { + dsMeta = metasets[i]; + if (dsMeta.index === datasetIndex) { + break; + } + + ds = chart.data.datasets[dsMeta.index]; + if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id) { + stackedRightValue = +yScale.getRightValue(ds.data[index]); + if (stackedRightValue < 0) { + sumNeg += stackedRightValue || 0; + } else { + sumPos += stackedRightValue || 0; + } + } + } + + if (rightValue < 0) { + return yScale.getPixelForValue(sumNeg + rightValue); + } + return yScale.getPixelForValue(sumPos + rightValue); + } + return yScale.getPixelForValue(value); + }, + + updateBezierControlPoints: function() { + var me = this; + var chart = me.chart; + var meta = me.getMeta(); + var lineModel = meta.dataset._model; + var area = chart.chartArea; + var points = meta.data || []; + var i, ilen, model, controlPoints; + + // Only consider points that are drawn in case the spanGaps option is used + if (lineModel.spanGaps) { + points = points.filter(function(pt) { + return !pt._model.skip; + }); + } + + function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); + } + + if (lineModel.cubicInterpolationMode === 'monotone') { + helpers$1.splineCurveMonotone(points); + } else { + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + controlPoints = helpers$1.splineCurve( + helpers$1.previousItem(points, i)._model, + model, + helpers$1.nextItem(points, i)._model, + lineModel.tension + ); + model.controlPointPreviousX = controlPoints.previous.x; + model.controlPointPreviousY = controlPoints.previous.y; + model.controlPointNextX = controlPoints.next.x; + model.controlPointNextY = controlPoints.next.y; + } + } + + if (chart.options.elements.line.capBezierPoints) { + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + if (isPointInArea(model, area)) { + if (i > 0 && isPointInArea(points[i - 1]._model, area)) { + model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right); + model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom); + } + if (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) { + model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right); + model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom); + } + } + } + } + }, + + draw: function() { + var me = this; + var chart = me.chart; + var meta = me.getMeta(); + var points = meta.data || []; + var area = chart.chartArea; + var canvas = chart.canvas; + var i = 0; + var ilen = points.length; + var clip; + + if (me._showLine) { + clip = meta.dataset._model.clip; + + helpers$1.canvas.clipArea(chart.ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? canvas.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? canvas.height : area.bottom + clip.bottom + }); + + meta.dataset.draw(); + + helpers$1.canvas.unclipArea(chart.ctx); + } + + // Draw the points + for (; i < ilen; ++i) { + points[i].draw(area); + } + }, + + /** + * @protected + */ + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth); + model.radius = valueOrDefault$6(options.hoverRadius, options.radius); + }, +}); + +var resolve$3 = helpers$1.options.resolve; + +core_defaults._set('polarArea', { + scale: { + type: 'radialLinear', + angleLines: { + display: false + }, + gridLines: { + circular: true + }, + pointLabels: { + display: false + }, + ticks: { + beginAtZero: true + } + }, + + // Boolean - Whether to animate the rotation of the chart + animation: { + animateRotate: true, + animateScale: true + }, + + startAngle: -0.5 * Math.PI, + legendCallback: function(chart) { + var list = document.createElement('ul'); + var data = chart.data; + var datasets = data.datasets; + var labels = data.labels; + var i, ilen, listItem, listItemSpan; + + list.setAttribute('class', chart.id + '-legend'); + if (datasets.length) { + for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) { + listItem = list.appendChild(document.createElement('li')); + listItemSpan = listItem.appendChild(document.createElement('span')); + listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i]; + if (labels[i]) { + listItem.appendChild(document.createTextNode(labels[i])); + } + } + } + + return list.outerHTML; + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var style = meta.controller.getStyle(i); + + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }); + } + return []; + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + meta.data[index].hidden = !meta.data[index].hidden; + } + + chart.update(); + } + }, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(item, data) { + return data.labels[item.index] + ': ' + item.yLabel; + } + } + } +}); + +var controller_polarArea = core_datasetController.extend({ + + dataElementType: elements.Arc, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'borderAlign', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + ], + + /** + * @private + */ + _getIndexScaleId: function() { + return this.chart.scale.id; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.chart.scale.id; + }, + + update: function(reset) { + var me = this; + var dataset = me.getDataset(); + var meta = me.getMeta(); + var start = me.chart.options.startAngle || 0; + var starts = me._starts = []; + var angles = me._angles = []; + var arcs = meta.data; + var i, ilen, angle; + + me._updateRadius(); + + meta.count = me.countVisibleElements(); + + for (i = 0, ilen = dataset.data.length; i < ilen; i++) { + starts[i] = start; + angle = me._computeAngle(i); + angles[i] = angle; + start += angle; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arcs[i]._options = me._resolveDataElementOptions(arcs[i], i); + me.updateElement(arcs[i], i, reset); + } + }, + + /** + * @private + */ + _updateRadius: function() { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + + chart.outerRadius = Math.max(minSize / 2, 0); + chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); + chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount(); + + me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index); + me.innerRadius = me.outerRadius - chart.radiusLength; + }, + + updateElement: function(arc, index, reset) { + var me = this; + var chart = me.chart; + var dataset = me.getDataset(); + var opts = chart.options; + var animationOpts = opts.animation; + var scale = chart.scale; + var labels = chart.data.labels; + + var centerX = scale.xCenter; + var centerY = scale.yCenter; + + // var negHalfPI = -0.5 * Math.PI; + var datasetStartAngle = opts.startAngle; + var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); + var startAngle = me._starts[index]; + var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]); + + var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); + var options = arc._options || {}; + + helpers$1.extend(arc, { + // Utility + _datasetIndex: me.index, + _index: index, + _scale: scale, + + // Desired view properties + _model: { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + borderAlign: options.borderAlign, + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius: reset ? resetRadius : distance, + startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle, + endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle, + label: helpers$1.valueAtIndexOrDefault(labels, index, labels[index]) + } + }); + + arc.pivot(); + }, + + countVisibleElements: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var count = 0; + + helpers$1.each(meta.data, function(element, index) { + if (!isNaN(dataset.data[index]) && !element.hidden) { + count++; + } + }); + + return count; + }, + + /** + * @protected + */ + setHoverStyle: function(arc) { + var model = arc._model; + var options = arc._options; + var getHoverColor = helpers$1.getHoverColor; + var valueOrDefault = helpers$1.valueOrDefault; + + arc.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + }; + + model.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth); + }, + + /** + * @private + */ + _computeAngle: function(index) { + var me = this; + var count = this.getMeta().count; + var dataset = me.getDataset(); + var meta = me.getMeta(); + + if (isNaN(dataset.data[index]) || meta.data[index].hidden) { + return 0; + } + + // Scriptable options + var context = { + chart: me.chart, + dataIndex: index, + dataset: dataset, + datasetIndex: me.index + }; + + return resolve$3([ + me.chart.options.elements.arc.angle, + (2 * Math.PI) / count + ], context, index); + } +}); + +core_defaults._set('pie', helpers$1.clone(core_defaults.doughnut)); +core_defaults._set('pie', { + cutoutPercentage: 0 +}); + +// Pie charts are Doughnut chart with different defaults +var controller_pie = controller_doughnut; + +var valueOrDefault$7 = helpers$1.valueOrDefault; + +core_defaults._set('radar', { + spanGaps: false, + scale: { + type: 'radialLinear' + }, + elements: { + line: { + fill: 'start', + tension: 0 // no bezier in radar + } + } +}); + +var controller_radar = core_datasetController.extend({ + datasetElementType: elements.Line, + + dataElementType: elements.Point, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderWidth', + 'borderColor', + 'borderCapStyle', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'fill' + ], + + /** + * @private + */ + _dataElementOptions: { + backgroundColor: 'pointBackgroundColor', + borderColor: 'pointBorderColor', + borderWidth: 'pointBorderWidth', + hitRadius: 'pointHitRadius', + hoverBackgroundColor: 'pointHoverBackgroundColor', + hoverBorderColor: 'pointHoverBorderColor', + hoverBorderWidth: 'pointHoverBorderWidth', + hoverRadius: 'pointHoverRadius', + pointStyle: 'pointStyle', + radius: 'pointRadius', + rotation: 'pointRotation' + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.chart.scale.id; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.chart.scale.id; + }, + + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var line = meta.dataset; + var points = meta.data || []; + var scale = me.chart.scale; + var config = me._config; + var i, ilen; + + // Compatibility: If the properties are defined with only the old name, use those values + if (config.tension !== undefined && config.lineTension === undefined) { + config.lineTension = config.tension; + } + + // Utility + line._scale = scale; + line._datasetIndex = me.index; + // Data + line._children = points; + line._loop = true; + // Model + line._model = me._resolveDatasetElementOptions(line); + + line.pivot(); + + // Update Points + for (i = 0, ilen = points.length; i < ilen; ++i) { + me.updateElement(points[i], i, reset); + } + + // Update bezier control points + me.updateBezierControlPoints(); + + // Now pivot the point for animation + for (i = 0, ilen = points.length; i < ilen; ++i) { + points[i].pivot(); + } + }, + + updateElement: function(point, index, reset) { + var me = this; + var custom = point.custom || {}; + var dataset = me.getDataset(); + var scale = me.chart.scale; + var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]); + var options = me._resolveDataElementOptions(point, index); + var lineModel = me.getMeta().dataset._model; + var x = reset ? scale.xCenter : pointPosition.x; + var y = reset ? scale.yCenter : pointPosition.y; + + // Utility + point._scale = scale; + point._options = options; + point._datasetIndex = me.index; + point._index = index; + + // Desired view properties + point._model = { + x: x, // value not used in dataset scale, but we want a consistent API between scales + y: y, + skip: custom.skip || isNaN(x) || isNaN(y), + // Appearance + radius: options.radius, + pointStyle: options.pointStyle, + rotation: options.rotation, + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + tension: valueOrDefault$7(custom.tension, lineModel ? lineModel.tension : 0), + + // Tooltip + hitRadius: options.hitRadius + }; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function() { + var me = this; + var config = me._config; + var options = me.chart.options; + var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments); + + values.spanGaps = valueOrDefault$7(config.spanGaps, options.spanGaps); + values.tension = valueOrDefault$7(config.lineTension, options.elements.line.tension); + + return values; + }, + + updateBezierControlPoints: function() { + var me = this; + var meta = me.getMeta(); + var area = me.chart.chartArea; + var points = meta.data || []; + var i, ilen, model, controlPoints; + + // Only consider points that are drawn in case the spanGaps option is used + if (meta.dataset._model.spanGaps) { + points = points.filter(function(pt) { + return !pt._model.skip; + }); + } + + function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); + } + + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + controlPoints = helpers$1.splineCurve( + helpers$1.previousItem(points, i, true)._model, + model, + helpers$1.nextItem(points, i, true)._model, + model.tension + ); + + // Prevent the bezier going outside of the bounds of the graph + model.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right); + model.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom); + model.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right); + model.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom); + } + }, + + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$7(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$7(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$7(options.hoverBorderWidth, options.borderWidth); + model.radius = valueOrDefault$7(options.hoverRadius, options.radius); + } +}); + +core_defaults._set('scatter', { + hover: { + mode: 'single' + }, + + scales: { + xAxes: [{ + id: 'x-axis-1', // need an ID so datasets can reference the scale + type: 'linear', // scatter should not use a category axis + position: 'bottom' + }], + yAxes: [{ + id: 'y-axis-1', + type: 'linear', + position: 'left' + }] + }, + + tooltips: { + callbacks: { + title: function() { + return ''; // doesn't make sense for scatter since data are formatted as a point + }, + label: function(item) { + return '(' + item.xLabel + ', ' + item.yLabel + ')'; + } + } + } +}); + +core_defaults._set('global', { + datasets: { + scatter: { + showLine: false + } + } +}); + +// Scatter charts use line controllers +var controller_scatter = controller_line; + +// NOTE export a map in which the key represents the controller type, not +// the class, and so must be CamelCase in order to be correctly retrieved +// by the controller in core.controller.js (`controllers[meta.type]`). + +var controllers = { + bar: controller_bar, + bubble: controller_bubble, + doughnut: controller_doughnut, + horizontalBar: controller_horizontalBar, + line: controller_line, + polarArea: controller_polarArea, + pie: controller_pie, + radar: controller_radar, + scatter: controller_scatter +}; + +/** + * Helper function to get relative position for an event + * @param {Event|IEvent} event - The event to get the position for + * @param {Chart} chart - The chart + * @returns {object} the event position + */ +function getRelativePosition(e, chart) { + if (e.native) { + return { + x: e.x, + y: e.y + }; + } + + return helpers$1.getRelativePosition(e, chart); +} + +/** + * Helper function to traverse all of the visible elements in the chart + * @param {Chart} chart - the chart + * @param {function} handler - the callback to execute for each visible item + */ +function parseVisibleItems(chart, handler) { + var metasets = chart._getSortedVisibleDatasetMetas(); + var metadata, i, j, ilen, jlen, element; + + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + metadata = metasets[i].data; + for (j = 0, jlen = metadata.length; j < jlen; ++j) { + element = metadata[j]; + if (!element._view.skip) { + handler(element); + } + } + } +} + +/** + * Helper function to get the items that intersect the event position + * @param {ChartElement[]} items - elements to filter + * @param {object} position - the point to be nearest to + * @return {ChartElement[]} the nearest items + */ +function getIntersectItems(chart, position) { + var elements = []; + + parseVisibleItems(chart, function(element) { + if (element.inRange(position.x, position.y)) { + elements.push(element); + } + }); + + return elements; +} + +/** + * Helper function to get the items nearest to the event position considering all visible items in teh chart + * @param {Chart} chart - the chart to look at elements from + * @param {object} position - the point to be nearest to + * @param {boolean} intersect - if true, only consider items that intersect the position + * @param {function} distanceMetric - function to provide the distance between points + * @return {ChartElement[]} the nearest items + */ +function getNearestItems(chart, position, intersect, distanceMetric) { + var minDistance = Number.POSITIVE_INFINITY; + var nearestItems = []; + + parseVisibleItems(chart, function(element) { + if (intersect && !element.inRange(position.x, position.y)) { + return; + } + + var center = element.getCenterPoint(); + var distance = distanceMetric(position, center); + if (distance < minDistance) { + nearestItems = [element]; + minDistance = distance; + } else if (distance === minDistance) { + // Can have multiple items at the same distance in which case we sort by size + nearestItems.push(element); + } + }); + + return nearestItems; +} + +/** + * Get a distance metric function for two points based on the + * axis mode setting + * @param {string} axis - the axis mode. x|y|xy + */ +function getDistanceMetricForAxis(axis) { + var useX = axis.indexOf('x') !== -1; + var useY = axis.indexOf('y') !== -1; + + return function(pt1, pt2) { + var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; +} + +function indexMode(chart, e, options) { + var position = getRelativePosition(e, chart); + // Default axis for index mode is 'x' to match old behaviour + options.axis = options.axis || 'x'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); + var elements = []; + + if (!items.length) { + return []; + } + + chart._getSortedVisibleDatasetMetas().forEach(function(meta) { + var element = meta.data[items[0]._index]; + + // don't count items that are skipped (null data) + if (element && !element._view.skip) { + elements.push(element); + } + }); + + return elements; +} + +/** + * @interface IInteractionOptions + */ +/** + * If true, only consider items that intersect the point + * @name IInterfaceOptions#boolean + * @type Boolean + */ + +/** + * Contains interaction related functions + * @namespace Chart.Interaction + */ +var core_interaction = { + // Helper function for different modes + modes: { + single: function(chart, e) { + var position = getRelativePosition(e, chart); + var elements = []; + + parseVisibleItems(chart, function(element) { + if (element.inRange(position.x, position.y)) { + elements.push(element); + return elements; + } + }); + + return elements.slice(0, 1); + }, + + /** + * @function Chart.Interaction.modes.label + * @deprecated since version 2.4.0 + * @todo remove at version 3 + * @private + */ + label: indexMode, + + /** + * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something + * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item + * @function Chart.Interaction.modes.index + * @since v2.4.0 + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use during interaction + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + index: indexMode, + + /** + * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something + * If the options.intersect is false, we find the nearest item and return the items in that dataset + * @function Chart.Interaction.modes.dataset + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use during interaction + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + dataset: function(chart, e, options) { + var position = getRelativePosition(e, chart); + options.axis = options.axis || 'xy'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); + + if (items.length > 0) { + items = chart.getDatasetMeta(items[0]._datasetIndex).data; + } + + return items; + }, + + /** + * @function Chart.Interaction.modes.x-axis + * @deprecated since version 2.4.0. Use index mode and intersect == true + * @todo remove at version 3 + * @private + */ + 'x-axis': function(chart, e) { + return indexMode(chart, e, {intersect: false}); + }, + + /** + * Point mode returns all elements that hit test based on the event position + * of the event + * @function Chart.Interaction.modes.intersect + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + point: function(chart, e) { + var position = getRelativePosition(e, chart); + return getIntersectItems(chart, position); + }, + + /** + * nearest mode returns the element closest to the point + * @function Chart.Interaction.modes.intersect + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + nearest: function(chart, e, options) { + var position = getRelativePosition(e, chart); + options.axis = options.axis || 'xy'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + return getNearestItems(chart, position, options.intersect, distanceMetric); + }, + + /** + * x mode returns the elements that hit-test at the current x coordinate + * @function Chart.Interaction.modes.x + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + x: function(chart, e, options) { + var position = getRelativePosition(e, chart); + var items = []; + var intersectsItem = false; + + parseVisibleItems(chart, function(element) { + if (element.inXRange(position.x)) { + items.push(element); + } + + if (element.inRange(position.x, position.y)) { + intersectsItem = true; + } + }); + + // If we want to trigger on an intersect and we don't have any items + // that intersect the position, return nothing + if (options.intersect && !intersectsItem) { + items = []; + } + return items; + }, + + /** + * y mode returns the elements that hit-test at the current y coordinate + * @function Chart.Interaction.modes.y + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + y: function(chart, e, options) { + var position = getRelativePosition(e, chart); + var items = []; + var intersectsItem = false; + + parseVisibleItems(chart, function(element) { + if (element.inYRange(position.y)) { + items.push(element); + } + + if (element.inRange(position.x, position.y)) { + intersectsItem = true; + } + }); + + // If we want to trigger on an intersect and we don't have any items + // that intersect the position, return nothing + if (options.intersect && !intersectsItem) { + items = []; + } + return items; + } + } +}; + +var extend = helpers$1.extend; + +function filterByPosition(array, position) { + return helpers$1.where(array, function(v) { + return v.pos === position; + }); +} + +function sortByWeight(array, reverse) { + return array.sort(function(a, b) { + var v0 = reverse ? b : a; + var v1 = reverse ? a : b; + return v0.weight === v1.weight ? + v0.index - v1.index : + v0.weight - v1.weight; + }); +} + +function wrapBoxes(boxes) { + var layoutBoxes = []; + var i, ilen, box; + + for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { + box = boxes[i]; + layoutBoxes.push({ + index: i, + box: box, + pos: box.position, + horizontal: box.isHorizontal(), + weight: box.weight + }); + } + return layoutBoxes; +} + +function setLayoutDims(layouts, params) { + var i, ilen, layout; + for (i = 0, ilen = layouts.length; i < ilen; ++i) { + layout = layouts[i]; + // store width used instead of chartArea.w in fitBoxes + layout.width = layout.horizontal + ? layout.box.fullWidth && params.availableWidth + : params.vBoxMaxWidth; + // store height used instead of chartArea.h in fitBoxes + layout.height = layout.horizontal && params.hBoxMaxHeight; + } +} + +function buildLayoutBoxes(boxes) { + var layoutBoxes = wrapBoxes(boxes); + var left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + var right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + var top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + var bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + + return { + leftAndTop: left.concat(top), + rightAndBottom: right.concat(bottom), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right), + horizontal: top.concat(bottom) + }; +} + +function getCombinedMax(maxPadding, chartArea, a, b) { + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); +} + +function updateDims(chartArea, params, layout) { + var box = layout.box; + var maxPadding = chartArea.maxPadding; + var newWidth, newHeight; + + if (layout.size) { + // this layout was already counted for, lets first reduce old size + chartArea[layout.pos] -= layout.size; + } + layout.size = layout.horizontal ? box.height : box.width; + chartArea[layout.pos] += layout.size; + + if (box.getPadding) { + var boxPadding = box.getPadding(); + maxPadding.top = Math.max(maxPadding.top, boxPadding.top); + maxPadding.left = Math.max(maxPadding.left, boxPadding.left); + maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); + maxPadding.right = Math.max(maxPadding.right, boxPadding.right); + } + + newWidth = params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'); + newHeight = params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'); + + if (newWidth !== chartArea.w || newHeight !== chartArea.h) { + chartArea.w = newWidth; + chartArea.h = newHeight; + + // return true if chart area changed in layout's direction + return layout.horizontal ? newWidth !== chartArea.w : newHeight !== chartArea.h; + } +} + +function handleMaxPadding(chartArea) { + var maxPadding = chartArea.maxPadding; + + function updatePos(pos) { + var change = Math.max(maxPadding[pos] - chartArea[pos], 0); + chartArea[pos] += change; + return change; + } + chartArea.y += updatePos('top'); + chartArea.x += updatePos('left'); + updatePos('right'); + updatePos('bottom'); +} + +function getMargins(horizontal, chartArea) { + var maxPadding = chartArea.maxPadding; + + function marginForPositions(positions) { + var margin = {left: 0, top: 0, right: 0, bottom: 0}; + positions.forEach(function(pos) { + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + + return horizontal + ? marginForPositions(['left', 'right']) + : marginForPositions(['top', 'bottom']); +} + +function fitBoxes(boxes, chartArea, params) { + var refitBoxes = []; + var i, ilen, layout, box, refit, changed; + + for (i = 0, ilen = boxes.length; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + + box.update( + layout.width || chartArea.w, + layout.height || chartArea.h, + getMargins(layout.horizontal, chartArea) + ); + if (updateDims(chartArea, params, layout)) { + changed = true; + if (refitBoxes.length) { + // Dimensions changed and there were non full width boxes before this + // -> we have to refit those + refit = true; + } + } + if (!box.fullWidth) { // fullWidth boxes don't need to be re-fitted in any case + refitBoxes.push(layout); + } + } + + return refit ? fitBoxes(refitBoxes, chartArea, params) || changed : changed; +} + +function placeBoxes(boxes, chartArea, params) { + var userPadding = params.padding; + var x = chartArea.x; + var y = chartArea.y; + var i, ilen, layout, box; + + for (i = 0, ilen = boxes.length; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + if (layout.horizontal) { + box.left = box.fullWidth ? userPadding.left : chartArea.left; + box.right = box.fullWidth ? params.outerWidth - userPadding.right : chartArea.left + chartArea.w; + box.top = y; + box.bottom = y + box.height; + box.width = box.right - box.left; + y = box.bottom; + } else { + box.left = x; + box.right = x + box.width; + box.top = chartArea.top; + box.bottom = chartArea.top + chartArea.h; + box.height = box.bottom - box.top; + x = box.right; + } + } + + chartArea.x = x; + chartArea.y = y; +} + +core_defaults._set('global', { + layout: { + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } + } +}); + +/** + * @interface ILayoutItem + * @prop {string} position - The position of the item in the chart layout. Possible values are + * 'left', 'top', 'right', 'bottom', and 'chartArea' + * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area + * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down + * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom) + * @prop {function} update - Takes two parameters: width and height. Returns size of item + * @prop {function} getPadding - Returns an object with padding on the edges + * @prop {number} width - Width of item. Must be valid after update() + * @prop {number} height - Height of item. Must be valid after update() + * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update + * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update + * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update + * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update + */ + +// The layout service is very self explanatory. It's responsible for the layout within a chart. +// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need +// It is this service's responsibility of carrying out that layout. +var core_layouts = { + defaults: {}, + + /** + * Register a box to a chart. + * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title. + * @param {Chart} chart - the chart to use + * @param {ILayoutItem} item - the item to add to be layed out + */ + addBox: function(chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + + // initialize item with default values + item.fullWidth = item.fullWidth || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [{ + z: 0, + draw: function() { + item.draw.apply(item, arguments); + } + }]; + }; + + chart.boxes.push(item); + }, + + /** + * Remove a layoutItem from a chart + * @param {Chart} chart - the chart to remove the box from + * @param {ILayoutItem} layoutItem - the item to remove from the layout + */ + removeBox: function(chart, layoutItem) { + var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + + /** + * Sets (or updates) options on the given `item`. + * @param {Chart} chart - the chart in which the item lives (or will be added to) + * @param {ILayoutItem} item - the item to configure with the given options + * @param {object} options - the new item options. + */ + configure: function(chart, item, options) { + var props = ['fullWidth', 'position', 'weight']; + var ilen = props.length; + var i = 0; + var prop; + + for (; i < ilen; ++i) { + prop = props[i]; + if (options.hasOwnProperty(prop)) { + item[prop] = options[prop]; + } + } + }, + + /** + * Fits boxes of the given chart into the given size by having each box measure itself + * then running a fitting algorithm + * @param {Chart} chart - the chart + * @param {number} width - the width to fit into + * @param {number} height - the height to fit into + */ + update: function(chart, width, height) { + if (!chart) { + return; + } + + var layoutOptions = chart.options.layout || {}; + var padding = helpers$1.options.toPadding(layoutOptions.padding); + + var availableWidth = width - padding.width; + var availableHeight = height - padding.height; + var boxes = buildLayoutBoxes(chart.boxes); + var verticalBoxes = boxes.vertical; + var horizontalBoxes = boxes.horizontal; + + // Essentially we now have any number of boxes on each of the 4 sides. + // Our canvas looks like the following. + // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and + // B1 is the bottom axis + // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays + // These locations are single-box locations only, when trying to register a chartArea location that is already taken, + // an error will be thrown. + // + // |----------------------------------------------------| + // | T1 (Full Width) | + // |----------------------------------------------------| + // | | | T2 | | + // | |----|-------------------------------------|----| + // | | | C1 | | C2 | | + // | | |----| |----| | + // | | | | | + // | L1 | L2 | ChartArea (C0) | R1 | + // | | | | | + // | | |----| |----| | + // | | | C3 | | C4 | | + // | |----|-------------------------------------|----| + // | | | B1 | | + // |----------------------------------------------------| + // | B2 (Full Width) | + // |----------------------------------------------------| + // + + var params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding: padding, + availableWidth: availableWidth, + vBoxMaxWidth: availableWidth / 2 / verticalBoxes.length, + hBoxMaxHeight: availableHeight / 2 + }); + var chartArea = extend({ + maxPadding: extend({}, padding), + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + + setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + + // First fit vertical boxes + fitBoxes(verticalBoxes, chartArea, params); + + // Then fit horizontal boxes + if (fitBoxes(horizontalBoxes, chartArea, params)) { + // if the area changed, re-fit vertical boxes + fitBoxes(verticalBoxes, chartArea, params); + } + + handleMaxPadding(chartArea); + + // Finally place the boxes to correct coordinates + placeBoxes(boxes.leftAndTop, chartArea, params); + + // Move to opposite side of chart + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + + placeBoxes(boxes.rightAndBottom, chartArea, params); + + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h + }; + + // Finally update boxes in chartArea (radial scale for example) + helpers$1.each(boxes.chartArea, function(layout) { + var box = layout.box; + extend(box, chart.chartArea); + box.update(chartArea.w, chartArea.h); + }); + } +}; + +/** + * Platform fallback implementation (minimal). + * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939 + */ + +var platform_basic = { + acquireContext: function(item) { + if (item && item.canvas) { + // Support for any object associated to a canvas (including a context2d) + item = item.canvas; + } + + return item && item.getContext('2d') || null; + } +}; + +var platform_dom = "/*\n * DOM element rendering detection\n * https://davidwalsh.name/detect-node-insertion\n */\n@keyframes chartjs-render-animation {\n\tfrom { opacity: 0.99; }\n\tto { opacity: 1; }\n}\n\n.chartjs-render-monitor {\n\tanimation: chartjs-render-animation 0.001s;\n}\n\n/*\n * DOM element resizing detection\n * https://github.com/marcj/css-element-queries\n */\n.chartjs-size-monitor,\n.chartjs-size-monitor-expand,\n.chartjs-size-monitor-shrink {\n\tposition: absolute;\n\tdirection: ltr;\n\tleft: 0;\n\ttop: 0;\n\tright: 0;\n\tbottom: 0;\n\toverflow: hidden;\n\tpointer-events: none;\n\tvisibility: hidden;\n\tz-index: -1;\n}\n\n.chartjs-size-monitor-expand > div {\n\tposition: absolute;\n\twidth: 1000000px;\n\theight: 1000000px;\n\tleft: 0;\n\ttop: 0;\n}\n\n.chartjs-size-monitor-shrink > div {\n\tposition: absolute;\n\twidth: 200%;\n\theight: 200%;\n\tleft: 0;\n\ttop: 0;\n}\n"; + +var platform_dom$1 = /*#__PURE__*/Object.freeze({ +__proto__: null, +'default': platform_dom +}); + +var stylesheet = getCjsExportFromNamespace(platform_dom$1); + +var EXPANDO_KEY = '$chartjs'; +var CSS_PREFIX = 'chartjs-'; +var CSS_SIZE_MONITOR = CSS_PREFIX + 'size-monitor'; +var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor'; +var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation'; +var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart']; + +/** + * DOM event types -> Chart.js event types. + * Note: only events with different types are mapped. + * @see https://developer.mozilla.org/en-US/docs/Web/Events + */ +var EVENT_TYPES = { + touchstart: 'mousedown', + touchmove: 'mousemove', + touchend: 'mouseup', + pointerenter: 'mouseenter', + pointerdown: 'mousedown', + pointermove: 'mousemove', + pointerup: 'mouseup', + pointerleave: 'mouseout', + pointerout: 'mouseout' +}; + +/** + * The "used" size is the final value of a dimension property after all calculations have + * been performed. This method uses the computed style of `element` but returns undefined + * if the computed style is not expressed in pixels. That can happen in some cases where + * `element` has a size relative to its parent and this last one is not yet displayed, + * for example because of `display: none` on a parent node. + * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value + * @returns {number} Size in pixels or undefined if unknown. + */ +function readUsedSize(element, property) { + var value = helpers$1.getStyle(element, property); + var matches = value && value.match(/^(\d+)(\.\d+)?px$/); + return matches ? Number(matches[1]) : undefined; +} + +/** + * Initializes the canvas style and render size without modifying the canvas display size, + * since responsiveness is handled by the controller.resize() method. The config is used + * to determine the aspect ratio to apply in case no explicit height has been specified. + */ +function initCanvas(canvas, config) { + var style = canvas.style; + + // NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it + // returns null or '' if no explicit value has been set to the canvas attribute. + var renderHeight = canvas.getAttribute('height'); + var renderWidth = canvas.getAttribute('width'); + + // Chart.js modifies some canvas values that we want to restore on destroy + canvas[EXPANDO_KEY] = { + initial: { + height: renderHeight, + width: renderWidth, + style: { + display: style.display, + height: style.height, + width: style.width + } + } + }; + + // Force canvas to display as block to avoid extra space caused by inline + // elements, which would interfere with the responsive resize process. + // https://github.com/chartjs/Chart.js/issues/2538 + style.display = style.display || 'block'; + + if (renderWidth === null || renderWidth === '') { + var displayWidth = readUsedSize(canvas, 'width'); + if (displayWidth !== undefined) { + canvas.width = displayWidth; + } + } + + if (renderHeight === null || renderHeight === '') { + if (canvas.style.height === '') { + // If no explicit render height and style height, let's apply the aspect ratio, + // which one can be specified by the user but also by charts as default option + // (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2. + canvas.height = canvas.width / (config.options.aspectRatio || 2); + } else { + var displayHeight = readUsedSize(canvas, 'height'); + if (displayWidth !== undefined) { + canvas.height = displayHeight; + } + } + } + + return canvas; +} + +/** + * Detects support for options object argument in addEventListener. + * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support + * @private + */ +var supportsEventListenerOptions = (function() { + var supports = false; + try { + var options = Object.defineProperty({}, 'passive', { + // eslint-disable-next-line getter-return + get: function() { + supports = true; + } + }); + window.addEventListener('e', null, options); + } catch (e) { + // continue regardless of error + } + return supports; +}()); + +// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events. +// https://github.com/chartjs/Chart.js/issues/4287 +var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; + +function addListener(node, type, listener) { + node.addEventListener(type, listener, eventListenerOptions); +} + +function removeListener(node, type, listener) { + node.removeEventListener(type, listener, eventListenerOptions); +} + +function createEvent(type, chart, x, y, nativeEvent) { + return { + type: type, + chart: chart, + native: nativeEvent || null, + x: x !== undefined ? x : null, + y: y !== undefined ? y : null, + }; +} + +function fromNativeEvent(event, chart) { + var type = EVENT_TYPES[event.type] || event.type; + var pos = helpers$1.getRelativePosition(event, chart); + return createEvent(type, chart, pos.x, pos.y, event); +} + +function throttled(fn, thisArg) { + var ticking = false; + var args = []; + + return function() { + args = Array.prototype.slice.call(arguments); + thisArg = thisArg || this; + + if (!ticking) { + ticking = true; + helpers$1.requestAnimFrame.call(window, function() { + ticking = false; + fn.apply(thisArg, args); + }); + } + }; +} + +function createDiv(cls) { + var el = document.createElement('div'); + el.className = cls || ''; + return el; +} + +// Implementation based on https://github.com/marcj/css-element-queries +function createResizer(handler) { + var maxSize = 1000000; + + // NOTE(SB) Don't use innerHTML because it could be considered unsafe. + // https://github.com/chartjs/Chart.js/issues/5902 + var resizer = createDiv(CSS_SIZE_MONITOR); + var expand = createDiv(CSS_SIZE_MONITOR + '-expand'); + var shrink = createDiv(CSS_SIZE_MONITOR + '-shrink'); + + expand.appendChild(createDiv()); + shrink.appendChild(createDiv()); + + resizer.appendChild(expand); + resizer.appendChild(shrink); + resizer._reset = function() { + expand.scrollLeft = maxSize; + expand.scrollTop = maxSize; + shrink.scrollLeft = maxSize; + shrink.scrollTop = maxSize; + }; + + var onScroll = function() { + resizer._reset(); + handler(); + }; + + addListener(expand, 'scroll', onScroll.bind(expand, 'expand')); + addListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink')); + + return resizer; +} + +// https://davidwalsh.name/detect-node-insertion +function watchForRender(node, handler) { + var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {}); + var proxy = expando.renderProxy = function(e) { + if (e.animationName === CSS_RENDER_ANIMATION) { + handler(); + } + }; + + helpers$1.each(ANIMATION_START_EVENTS, function(type) { + addListener(node, type, proxy); + }); + + // #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class + // is removed then added back immediately (same animation frame?). Accessing the + // `offsetParent` property will force a reflow and re-evaluate the CSS animation. + // https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics + // https://github.com/chartjs/Chart.js/issues/4737 + expando.reflow = !!node.offsetParent; + + node.classList.add(CSS_RENDER_MONITOR); +} + +function unwatchForRender(node) { + var expando = node[EXPANDO_KEY] || {}; + var proxy = expando.renderProxy; + + if (proxy) { + helpers$1.each(ANIMATION_START_EVENTS, function(type) { + removeListener(node, type, proxy); + }); + + delete expando.renderProxy; + } + + node.classList.remove(CSS_RENDER_MONITOR); +} + +function addResizeListener(node, listener, chart) { + var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {}); + + // Let's keep track of this added resizer and thus avoid DOM query when removing it. + var resizer = expando.resizer = createResizer(throttled(function() { + if (expando.resizer) { + var container = chart.options.maintainAspectRatio && node.parentNode; + var w = container ? container.clientWidth : 0; + listener(createEvent('resize', chart)); + if (container && container.clientWidth < w && chart.canvas) { + // If the container size shrank during chart resize, let's assume + // scrollbar appeared. So we resize again with the scrollbar visible - + // effectively making chart smaller and the scrollbar hidden again. + // Because we are inside `throttled`, and currently `ticking`, scroll + // events are ignored during this whole 2 resize process. + // If we assumed wrong and something else happened, we are resizing + // twice in a frame (potential performance issue) + listener(createEvent('resize', chart)); + } + } + })); + + // The resizer needs to be attached to the node parent, so we first need to be + // sure that `node` is attached to the DOM before injecting the resizer element. + watchForRender(node, function() { + if (expando.resizer) { + var container = node.parentNode; + if (container && container !== resizer.parentNode) { + container.insertBefore(resizer, container.firstChild); + } + + // The container size might have changed, let's reset the resizer state. + resizer._reset(); + } + }); +} + +function removeResizeListener(node) { + var expando = node[EXPANDO_KEY] || {}; + var resizer = expando.resizer; + + delete expando.resizer; + unwatchForRender(node); + + if (resizer && resizer.parentNode) { + resizer.parentNode.removeChild(resizer); + } +} + +/** + * Injects CSS styles inline if the styles are not already present. + * @param {HTMLDocument|ShadowRoot} rootNode - the node to contain the