forked from jupyterlab/jupyterlab
/
widget.tsx
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/
widget.tsx
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// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
import { VDomRenderer, ToolbarButtonComponent } from '@jupyterlab/apputils';
import { ServiceManager } from '@jupyterlab/services';
import { Message } from '@phosphor/messaging';
import { Button, InputGroup, Collapse } from '@jupyterlab/ui-components';
import * as React from 'react';
import ReactPaginate from 'react-paginate';
import { ListModel, IEntry, Action } from './model';
import { isJupyterOrg } from './query';
// TODO: Replace pagination with lazy loading of lower search results
/**
* Search bar VDOM component.
*/
export class SearchBar extends React.Component<
SearchBar.IProperties,
SearchBar.IState
> {
constructor(props: SearchBar.IProperties) {
super(props);
this.state = {
value: ''
};
}
/**
* Render the list view using the virtual DOM.
*/
render(): React.ReactNode {
return (
<div className="jp-extensionmanager-search-bar">
<InputGroup
className="jp-extensionmanager-search-wrapper"
type="text"
placeholder={this.props.placeholder}
onChange={this.handleChange}
value={this.state.value}
rightIcon="search"
/>
</div>
);
}
/**
* Handler for search input changes.
*/
handleChange = (e: React.FormEvent<HTMLElement>) => {
let target = e.target as HTMLInputElement;
this.setState({
value: target.value
});
};
}
/**
* The namespace for search bar statics.
*/
export namespace SearchBar {
/**
* React properties for search bar component.
*/
export interface IProperties {
/**
* The placeholder string to use in the search bar input field when empty.
*/
placeholder: string;
}
/**
* React state for search bar component.
*/
export interface IState {
/**
* The value of the search bar input field.
*/
value: string;
}
}
/**
* Create a build prompt as a react element.
*
* @param props Configuration of the build prompt.
*/
function BuildPrompt(props: BuildPrompt.IProperties): React.ReactElement<any> {
return (
<div className="jp-extensionmanager-buildprompt">
<div className="jp-extensionmanager-buildmessage">
A build is needed to include the latest changes
</div>
<Button onClick={props.performBuild} minimal small>
Rebuild
</Button>
<Button onClick={props.ignoreBuild} minimal small>
Ignore
</Button>
</div>
);
}
/**
* The namespace for build prompt statics.
*/
namespace BuildPrompt {
/**
* Properties for build prompt react component.
*/
export interface IProperties {
/**
* Callback for when a build is requested.
*/
performBuild: () => void;
/**
* Callback for when a build notice is dismissed.
*/
ignoreBuild: () => void;
}
}
/**
* VDOM for visualizing an extension entry.
*/
function ListEntry(props: ListEntry.IProperties): React.ReactElement<any> {
const { entry } = props;
const flagClasses = [];
if (entry.status && ['ok', 'warning', 'error'].indexOf(entry.status) !== -1) {
flagClasses.push(`jp-extensionmanager-entry-${entry.status}`);
}
let title = entry.name;
if (isJupyterOrg(entry.name)) {
flagClasses.push(`jp-extensionmanager-entry-mod-whitelisted`);
title = `${entry.name} (Developed by Project Jupyter)`;
}
return (
<li
className={`jp-extensionmanager-entry ${flagClasses.join(' ')}`}
title={title}
>
<div className="jp-extensionmanager-entry-title">
<div className="jp-extensionmanager-entry-name">
<a href={entry.url} target="_blank" rel="noopener">
{entry.name}
</a>
</div>
<div className="jp-extensionmanager-entry-jupyter-org" />
</div>
<div className="jp-extensionmanager-entry-content">
<div className="jp-extensionmanager-entry-description">
{entry.description}
</div>
<div className="jp-extensionmanager-entry-buttons">
{!entry.installed && (
<Button
onClick={() => props.performAction('install', entry)}
minimal
small
>
Install
</Button>
)}
{ListModel.entryHasUpdate(entry) && (
<Button
onClick={() => props.performAction('install', entry)}
minimal
small
>
Update
</Button>
)}
{entry.installed && (
<Button
onClick={() => props.performAction('uninstall', entry)}
minimal
small
>
Uninstall
</Button>
)}
{entry.enabled && (
<Button
onClick={() => props.performAction('disable', entry)}
minimal
small
>
Disable
</Button>
)}
{entry.installed && !entry.enabled && (
<Button
onClick={() => props.performAction('enable', entry)}
minimal
small
>
Enable
</Button>
)}
</div>
</div>
</li>
);
}
/**
* The namespace for extension entry statics.
*/
export namespace ListEntry {
export interface IProperties {
/**
* The entry to visualize.
*/
entry: IEntry;
/**
* Callback to use for performing an action on the entry.
*/
performAction: (action: Action, entry: IEntry) => void;
}
}
/**
* List view widget for extensions
*/
export function ListView(props: ListView.IProperties): React.ReactElement<any> {
const entryViews = [];
for (let entry of props.entries) {
entryViews.push(
<ListEntry
entry={entry}
key={entry.name}
performAction={props.performAction}
/>
);
}
let pagination;
if (props.numPages > 1) {
pagination = (
<div className="jp-extensionmanager-pagination">
<ReactPaginate
previousLabel={'<'}
nextLabel={'>'}
breakLabel={<a href="">...</a>}
breakClassName={'break-me'}
pageCount={props.numPages}
marginPagesDisplayed={2}
pageRangeDisplayed={5}
onPageChange={(data: { selected: number }) =>
props.onPage(data.selected)
}
containerClassName={'pagination'}
activeClassName={'active'}
/>
</div>
);
}
const listview = (
<ul className="jp-extensionmanager-listview">{entryViews}</ul>
);
return (
<div className="jp-extensionmanager-listview-wrapper">
{entryViews.length > 0 ? (
listview
) : (
<div key="message" className="jp-extensionmanager-listview-message">
No entries
</div>
)}
{pagination}
</div>
);
}
/**
* The namespace for list view widget statics.
*/
export namespace ListView {
export interface IProperties {
/**
* The extension entries to display.
*/
entries: ReadonlyArray<IEntry>;
/**
* The number of pages that can be viewed via pagination.
*/
numPages: number;
/**
* The callback to use for changing the page
*/
onPage: (page: number) => void;
/**
* Callback to use for performing an action on an entry.
*/
performAction: (action: Action, entry: IEntry) => void;
}
}
function ErrorMessage(props: ErrorMessage.IProperties) {
return (
<div key="error-msg" className="jp-extensionmanager-error">
{props.children}
</div>
);
}
namespace ErrorMessage {
export interface IProperties {
children: React.ReactNode;
}
}
/**
*
*/
export class CollapsibleSection extends React.Component<
CollapsibleSection.IProperties,
CollapsibleSection.IState
> {
constructor(props: CollapsibleSection.IProperties) {
super(props);
this.state = {
isOpen: props.isOpen || true
};
}
/**
* Render the collapsible section using the virtual DOM.
*/
render(): React.ReactNode {
return (
<>
<header>
<ToolbarButtonComponent
iconClassName={
this.state.isOpen
? 'jp-extensionmanager-expandIcon'
: 'jp-extensionmanager-collapseIcon'
}
onClick={() => {
this.handleCollapse();
}}
/>
<span className="jp-extensionmanager-headerText">
{this.props.header}
</span>
{this.props.headerElements}
</header>
<Collapse isOpen={this.state.isOpen}>{this.props.children}</Collapse>
</>
);
}
/**
* Handler for search input changes.
*/
handleCollapse() {
this.setState(
{
isOpen: !this.state.isOpen
},
() => {
if (this.props.onCollapse) {
this.props.onCollapse(this.state.isOpen);
}
}
);
}
}
/**
* The namespace for collapsible section statics.
*/
export namespace CollapsibleSection {
/**
* React properties for collapsible section component.
*/
export interface IProperties {
/**
* The header string for section list.
*/
header: string;
/**
* Whether the view will be expanded or collapsed initially, defaults to open.
*/
isOpen?: boolean;
/**
* Handle collapse event.
*/
onCollapse?: (isOpen: boolean) => void;
/**
* Any additional elements to add to the header.
*/
headerElements?: React.ReactNode;
/**
* If given, this will be diplayed instead of the children.
*/
errorMessage?: string | null;
}
/**
* React state for collapsible section component.
*/
export interface IState {
/**
* Whether the section is expanded or collapsed.
*/
isOpen: boolean;
}
}
/**
* The main view for the discovery extension.
*/
export class ExtensionView extends VDomRenderer<ListModel> {
constructor(serviceManager: ServiceManager) {
super();
this.model = new ListModel(serviceManager);
this.addClass('jp-extensionmanager-view');
}
/**
* The search input node.
*/
get inputNode(): HTMLInputElement {
return this.node.querySelector(
'.jp-extensionmanager-search-wrapper input'
) as HTMLInputElement;
}
/**
* Render the extension view using the virtual DOM.
*/
protected render(): React.ReactElement<any>[] {
const model = this.model!;
let pages = Math.ceil(model.totalEntries / model.pagination);
let elements = [<SearchBar key="searchbar" placeholder="SEARCH" />];
if (model.promptBuild) {
elements.push(
<BuildPrompt
key="buildpromt"
performBuild={() => {
model.performBuild();
}}
ignoreBuild={() => {
model.ignoreBuildRecommendation();
}}
/>
);
}
// Indicator element for pending actions:
elements.push(
<div
key="pending"
className={`jp-extensionmanager-pending ${
model.hasPendingActions() ? 'jp-mod-hasPending' : ''
}`}
/>
);
const content = [];
if (!model.initialized) {
void model.initialize();
content.push(
<div key="loading-placeholder" className="jp-extensionmanager-loader">
Updating extensions list
</div>
);
} else if (model.serverConnectionError !== null) {
content.push(
<ErrorMessage key="error-msg">
<p>
Error communicating with server extension. Consult the documentation
for how to ensure that it is enabled.
</p>
<p>Reason given:</p>
<pre>{model.serverConnectionError}</pre>
</ErrorMessage>
);
} else if (model.serverRequirementsError !== null) {
content.push(
<ErrorMessage key="server-requirements-error">
<p>
The server has some missing requirements for installing extensions.
</p>
<p>Details:</p>
<pre>{model.serverRequirementsError}</pre>
</ErrorMessage>
);
} else {
// List installed and discovery sections
let installedContent = [];
if (model.installedError !== null) {
installedContent.push(
<ErrorMessage key="install-error">
{`Error querying installed extensions${
model.installedError ? `: ${model.installedError}` : '.'
}`}
</ErrorMessage>
);
} else {
installedContent.push(
<ListView
key="installed-items"
entries={model.installed}
numPages={1}
onPage={value => {
/* no-op */
}}
performAction={this.onAction.bind(this)}
/>
);
}
content.push(
<CollapsibleSection
key="installed-section"
isOpen={true}
header="Installed"
headerElements={
<ToolbarButtonComponent
key="refresh-button"
className="jp-extensionmanager-refresh"
iconClassName="jp-RefreshIcon"
onClick={() => {
model.refreshInstalled();
}}
tooltip="Refresh extension list"
/>
}
>
{installedContent}
</CollapsibleSection>
);
let searchContent = [];
if (model.searchError !== null) {
searchContent.push(
<ErrorMessage key="search-error">
{`Error searching for extensions${
model.searchError ? `: ${model.searchError}` : '.'
}`}
</ErrorMessage>
);
} else {
searchContent.push(
<ListView
key="search-items"
// Filter out installed extensions:
entries={model.searchResult.filter(
entry => model.installed.indexOf(entry) === -1
)}
numPages={pages}
onPage={value => {
this.onPage(value);
}}
performAction={this.onAction.bind(this)}
/>
);
}
content.push(
<CollapsibleSection
key="search-section"
isOpen={false}
header={model.query ? 'Search Results' : 'Discover'}
onCollapse={(isOpen: boolean) => {
if (isOpen && model.query === null) {
model.query = '';
}
}}
>
{searchContent}
</CollapsibleSection>
);
}
elements.push(
<div key="content" className="jp-extensionmanager-content">
{content}
</div>
);
return elements;
}
/**
* Callback handler for the user specifies a new search query.
*
* @param value The new query.
*/
onSearch(value: string) {
this.model!.query = value;
}
/**
* Callback handler for the user changes the page of the search result pagination.
*
* @param value The pagination page number.
*/
onPage(value: number) {
this.model!.page = value;
}
/**
* Callback handler for when the user wants to perform an action on an extension.
*
* @param action The action to perform.
* @param entry The entry to perform the action on.
*/
onAction(action: Action, entry: IEntry) {
switch (action) {
case 'install':
return this.model!.install(entry);
case 'uninstall':
return this.model!.uninstall(entry);
case 'enable':
return this.model!.enable(entry);
case 'disable':
return this.model!.disable(entry);
default:
throw new Error(`Invalid action: ${action}`);
}
}
/**
* Handle the DOM events for the command palette.
*
* @param event - The DOM event sent to the command palette.
*
* #### Notes
* This method implements the DOM `EventListener` interface and is
* called in response to events on the command palette's DOM node.
* It should not be called directly by user code.
*/
handleEvent(event: Event): void {
switch (event.type) {
case 'input':
this.onSearch(this.inputNode.value);
break;
case 'focus':
case 'blur':
this._toggleFocused();
break;
default:
break;
}
}
/**
* A message handler invoked on a `'before-attach'` message.
*/
protected onBeforeAttach(msg: Message): void {
this.node.addEventListener('input', this);
this.node.addEventListener('focus', this, true);
this.node.addEventListener('blur', this, true);
}
/**
* A message handler invoked on an `'after-detach'` message.
*/
protected onAfterDetach(msg: Message): void {
this.node.removeEventListener('input', this);
this.node.removeEventListener('focus', this, true);
this.node.removeEventListener('blur', this, true);
}
/**
* A message handler invoked on an `'activate-request'` message.
*/
protected onActivateRequest(msg: Message): void {
if (this.isAttached) {
let input = this.inputNode;
input.focus();
input.select();
}
}
/**
* Toggle the focused modifier based on the input node focus state.
*/
private _toggleFocused(): void {
let focused = document.activeElement === this.inputNode;
this.toggleClass('p-mod-focused', focused);
}
}