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<!doctype html>
<html lang="en">
<head>
<title>Code coverage report for src/useCodeMirror.ts</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="../prettify.css" />
<link rel="stylesheet" href="../base.css" />
<link rel="shortcut icon" type="image/x-icon" href="../favicon.png" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style type='text/css'>
.coverage-summary .sorter {
background-image: url(../sort-arrow-sprite.png);
}
</style>
</head>
<body>
<div class='wrapper'>
<div class='pad1'>
<h1><a href="../index.html">All files</a> / <a href="index.html">src</a> useCodeMirror.ts</h1>
<div class='clearfix'>
<div class='fl pad1y space-right2'>
<span class="strong">91.54% </span>
<span class="quiet">Statements</span>
<span class='fraction'>65/71</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">80% </span>
<span class="quiet">Branches</span>
<span class='fraction'>56/70</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Functions</span>
<span class='fraction'>11/11</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">91.42% </span>
<span class="quiet">Lines</span>
<span class='fraction'>64/70</span>
</div>
</div>
<p class="quiet">
Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
</p>
<template id="filterTemplate">
<div class="quiet">
Filter:
<input oninput="onInput()" type="search" id="fileSearch">
</div>
</template>
</div>
<div class='status-line high'></div>
<pre><table class="coverage">
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { useEffect, useState } from 'react';
import { Annotation, EditorState, StateEffect } from '@codemirror/state';
import { indentWithTab } from '@codemirror/commands';
import { EditorView, keymap, ViewUpdate, placeholder } from '@codemirror/view';
import { basicSetup } from '@uiw/codemirror-extensions-basic-setup';
import { oneDark } from '@codemirror/theme-one-dark';
import { getStatistics } from './utils';
import { ReactCodeMirrorProps } from '.';
const External = Annotation.define<boolean>();
export interface UseCodeMirror extends ReactCodeMirrorProps {
container?: HTMLDivElement | null;
}
export function useCodeMirror(props: UseCodeMirror) {
const {
value,
selection,
onChange,
onStatistics,
onCreateEditor,
onUpdate,
extensions = <span class="branch-0 cbranch-no" title="branch not covered" >[],</span>
autoFocus,
theme = <span class="branch-0 cbranch-no" title="branch not covered" >'light',</span>
height = '',
minHeight = '',
maxHeight = '',
placeholder: placeholderStr = '',
width = '',
minWidth = '',
maxWidth = '',
editable = true,
readOnly = false,
indentWithTab: defaultIndentWithTab = true,
basicSetup: defaultBasicSetup = true,
root,
initialState,
} = props;
const [container, setContainer] = useState<HTMLDivElement>();
const [view, setView] = useState<EditorView>();
const [state, setState] = useState<EditorState>();
const defaultLightThemeOption = EditorView.theme(
{
'&': {
backgroundColor: '#fff',
},
},
{
dark: false,
},
);
const defaultThemeOption = EditorView.theme({
'&': {
height,
minHeight,
maxHeight,
width,
minWidth,
maxWidth,
},
});
const updateListener = EditorView.updateListener.of((vu: ViewUpdate) => {
if (
vu.docChanged &&
typeof onChange === 'function' &&
// Fix echoing of the remote changes:
// If transaction is market as remote we don't have to call `onChange` handler again
!vu.transactions.some((tr) => tr.annotation(External))
) {
const doc = vu.state.doc;
const value = doc.toString();
onChange(value, vu);
}
onStatistics && <span class="branch-1 cbranch-no" title="branch not covered" >onStatistics(getStatistics(vu));</span>
});
let getExtensions = [updateListener, defaultThemeOption];
<span class="missing-if-branch" title="else path not taken" >E</span>if (defaultIndentWithTab) {
getExtensions.unshift(keymap.of([indentWithTab]));
}
<span class="missing-if-branch" title="else path not taken" >E</span>if (defaultBasicSetup) {
if (typeof defaultBasicSetup === 'boolean') {
getExtensions.unshift(basicSetup());
} else <span class="missing-if-branch" title="else path not taken" >E</span>{
<span class="cstat-no" title="statement not covered" > getExtensions.unshift(basicSetup(defaultBasicSetup));</span>
}
}
if (placeholderStr) {
getExtensions.unshift(placeholder(placeholderStr));
}
switch (theme) {
case 'light':
getExtensions.push(defaultLightThemeOption);
break;
case 'dark':
getExtensions.push(oneDark);
break;
<span class="branch-2 cbranch-no" title="branch not covered" > case 'none':</span>
<span class="cstat-no" title="statement not covered" > break;</span>
<span class="branch-3 cbranch-no" title="branch not covered" > default:</span>
<span class="cstat-no" title="statement not covered" > getExtensions.push(theme);</span>
<span class="cstat-no" title="statement not covered" > break;</span>
}
if (editable === false) {
getExtensions.push(EditorView.editable.of(false));
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (readOnly) {
<span class="cstat-no" title="statement not covered" > getExtensions.push(EditorState.readOnly.of(true));</span>
}
if (onUpdate && typeof onUpdate === 'function') {
getExtensions.push(EditorView.updateListener.of(onUpdate));
}
getExtensions = getExtensions.concat(extensions);
useEffect(() => {
if (container && !state) {
const config = {
doc: value,
selection,
extensions: getExtensions,
};
const stateCurrent = initialState
? <span class="branch-0 cbranch-no" title="branch not covered" >EditorState.fromJSON(initialState.json, config, initialState.fields)</span>
: EditorState.create(config);
setState(stateCurrent);
<span class="missing-if-branch" title="else path not taken" >E</span>if (!view) {
const viewCurrent = new EditorView({
state: stateCurrent,
parent: container,
root,
});
setView(viewCurrent);
onCreateEditor && <span class="branch-1 cbranch-no" title="branch not covered" >onCreateEditor(viewCurrent, stateCurrent);</span>
}
}
return () => {
if (view) {
setState(undefined);
setView(undefined);
}
};
}, [container, state]);
useEffect(() => setContainer(props.container!), [props.container]);
useEffect(
() => () => {
if (view) {
view.destroy();
setView(undefined);
}
},
[view],
);
useEffect(() => {
if (autoFocus && view) {
view.focus();
}
}, [autoFocus, view]);
useEffect(() => {
if (view) {
view.dispatch({ effects: StateEffect.reconfigure.of(getExtensions) });
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [
theme,
extensions,
height,
minHeight,
maxHeight,
width,
minWidth,
maxWidth,
placeholderStr,
editable,
readOnly,
defaultIndentWithTab,
defaultBasicSetup,
onChange,
onUpdate,
]);
useEffect(() => {
<span class="missing-if-branch" title="if path not taken" >I</span>if (value === undefined) {
<span class="cstat-no" title="statement not covered" > return;</span>
}
const currentValue = view ? view.state.doc.toString() : '';
if (view && value !== currentValue) {
view.dispatch({
changes: { from: 0, to: currentValue.length, insert: value || <span class="branch-1 cbranch-no" title="branch not covered" >'' </span>},
annotations: [External.of(true)],
});
}
}, [value, view]);
return { state, setState, view, setView, container, setContainer };
}
</pre></td></tr></table></pre>
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