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add image support for convertFromHTML, along with new example (#734)
* add image support for convertFromHTML, along with new example * Update example page title * Chrome fix * clean up requires
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<!-- | ||
Copyright (c) 2013-present, Facebook, Inc. All rights reserved. | ||
This file provided by Facebook is for non-commercial testing and evaluation | ||
purposes only. Facebook reserves all rights not expressly granted. | ||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | ||
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
--> | ||
<!DOCTYPE html> | ||
<html> | ||
<head> | ||
<meta charset="utf-8" /> | ||
<title>Draft • Convert from HTML</title> | ||
<link rel="stylesheet" href="../../dist/Draft.css" /> | ||
</head> | ||
<body> | ||
<div id="target"></div> | ||
<script src="../../node_modules/react/dist/react.js"></script> | ||
<script src="../../node_modules/react-dom/dist/react-dom.js"></script> | ||
<script src="../../node_modules/immutable/dist/immutable.js"></script> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.34/browser.js"></script> | ||
<script src="../../dist/Draft.js"></script> | ||
<script type="text/babel"> | ||
'use strict'; | ||
|
||
const { | ||
CompositeDecorator, | ||
ContentBlock, | ||
ContentState, | ||
Editor, | ||
EditorState, | ||
convertFromHTML, | ||
convertToRaw, | ||
} = Draft; | ||
|
||
class HTMLConvertExample extends React.Component { | ||
constructor(props) { | ||
super(props); | ||
|
||
const decorator = new CompositeDecorator([ | ||
{ | ||
strategy: findLinkEntities, | ||
component: Link, | ||
}, | ||
{ | ||
strategy: findImageEntities, | ||
component: Image, | ||
}, | ||
]); | ||
|
||
const sampleMarkup = | ||
'<b>Bold text</b>, <i>Italic text</i><br/ ><br />' + | ||
'<a href="http://www.facebook.com">Example link</a><br /><br/ >' + | ||
'<img src="image.png" height="112" width="200" />'; | ||
|
||
const blocksFromHTML = convertFromHTML(sampleMarkup); | ||
const state = ContentState.createFromBlockArray( | ||
blocksFromHTML.contentBlocks, | ||
blocksFromHTML.entityMap, | ||
); | ||
|
||
this.state = { | ||
editorState: EditorState.createWithContent( | ||
state, | ||
decorator, | ||
), | ||
}; | ||
|
||
this.focus = () => this.refs.editor.focus(); | ||
this.onChange = (editorState) => this.setState({editorState}); | ||
this.logState = () => { | ||
const content = this.state.editorState.getCurrentContent(); | ||
console.log(convertToRaw(content)); | ||
}; | ||
} | ||
|
||
render() { | ||
return ( | ||
<div style={styles.root}> | ||
<div style={{marginBottom: 10}}> | ||
Sample HTML converted into Draft content state | ||
</div> | ||
<div style={styles.editor} onClick={this.focus}> | ||
<Editor | ||
editorState={this.state.editorState} | ||
onChange={this.onChange} | ||
ref="editor" | ||
/> | ||
</div> | ||
<input | ||
onClick={this.logState} | ||
style={styles.button} | ||
type="button" | ||
value="Log State" | ||
/> | ||
</div> | ||
); | ||
} | ||
} | ||
|
||
function findLinkEntities(contentState, contentBlock, callback) { | ||
contentBlock.findEntityRanges( | ||
(character) => { | ||
const entityKey = character.getEntity(); | ||
return ( | ||
entityKey !== null && | ||
contentState.getEntity(entityKey).getType() === 'LINK' | ||
); | ||
}, | ||
callback | ||
); | ||
} | ||
|
||
const Link = (props) => { | ||
const {url} = props.contentState.getEntity(props.entityKey).getData(); | ||
return ( | ||
<a href={url} style={styles.link}> | ||
{props.children} | ||
</a> | ||
); | ||
}; | ||
|
||
function findImageEntities(contentState, contentBlock, callback) { | ||
contentBlock.findEntityRanges( | ||
(character) => { | ||
const entityKey = character.getEntity(); | ||
return ( | ||
entityKey !== null && | ||
contentState.getEntity(entityKey).getType() === 'IMAGE' | ||
); | ||
}, | ||
callback | ||
); | ||
} | ||
|
||
const Image = (props) => { | ||
const { | ||
height, | ||
src, | ||
width, | ||
} = props.contentState.getEntity(props.entityKey).getData(); | ||
|
||
return ( | ||
<img src={src} height={height} width={width} /> | ||
); | ||
}; | ||
|
||
const styles = { | ||
root: { | ||
fontFamily: '\'Helvetica\', sans-serif', | ||
padding: 20, | ||
width: 600, | ||
}, | ||
editor: { | ||
border: '1px solid #ccc', | ||
cursor: 'text', | ||
minHeight: 80, | ||
padding: 10, | ||
}, | ||
button: { | ||
marginTop: 10, | ||
textAlign: 'center', | ||
}, | ||
}; | ||
|
||
ReactDOM.render( | ||
<HTMLConvertExample />, | ||
document.getElementById('target') | ||
); | ||
</script> | ||
</body> | ||
</html> |
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