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September 5, 2019 05:24
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Draft js editor with images and videos
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import React, {Component} from 'react' | |
import ReactDOM from 'react-dom'; | |
import { EditorState, RichUtils,Editor, ContentState, DefaultDraftBlockRenderMap, convertFromHTML, getSafeBodyFromHTML, AtomicBlockUtils, CompositeDecorator} from 'draft-js'; | |
import createImagePlugin from "draft-js-image-plugin"; | |
import './rich-editor.scss' | |
import * as Immutable from "immutable"; | |
import {stateToHTML} from 'draft-js-export-html'; | |
import {InlineStyleControls, BlockStyleControls} from './StyleButton' | |
import Svg from 'common/Svg'; | |
import createVideoPlugin from 'draft-js-video-plugin'; | |
const videoPlugin = createVideoPlugin(); | |
const imagePlugin = createImagePlugin(); | |
const plugins = [imagePlugin, videoPlugin]; | |
export default class DraftEditor extends React.Component { | |
constructor(props) { | |
super(props); | |
const decorator = new CompositeDecorator([ | |
{ | |
strategy: findLinkEntities, | |
component: Link, | |
}, | |
{ | |
strategy: findImageEntities, | |
component: Image, | |
}, | |
{ | |
strategy: findVideoEntities, | |
component: Video, | |
}, | |
]); | |
let state; | |
//Если HTML пришел | |
if(/^\s*</.test(props.sampleMarkup)){ | |
const blocksFromHTML = convertFromHTML(props.sampleMarkup || '') | |
console.log(props.sampleMarkup, blocksFromHTML) | |
state = ContentState.createFromBlockArray( | |
blocksFromHTML.contentBlocks, | |
blocksFromHTML.entityMap | |
); | |
}else{ | |
state= ContentState.createFromText(props.sampleMarkup || '') | |
} | |
this.state = { | |
editorState: EditorState.createWithContent( | |
state, | |
decorator, | |
), | |
showURLInput: false, | |
showMediaInput: false, | |
urlValue: '', | |
}; | |
this.focus = () => this.refs.editor.focus(); | |
this.onChange = this._onChange.bind(this) | |
this.promptForLink = this._promptForLink.bind(this); | |
this.onURLChange = (e) => this.setState({urlValue: e.target.value}); | |
this.confirmLink = this._confirmLink.bind(this); | |
this.onLinkInputKeyDown = this._onLinkInputKeyDown.bind(this); | |
this.removeLink = this._removeLink.bind(this); | |
this.toggleBlockType = this._toggleBlockType.bind(this); | |
this.toggleInlineStyle = this._toggleInlineStyle.bind(this); | |
this.promptForMedia = this._promptForMedia.bind(this); | |
this.confirmMedia = this._confirmMedia.bind(this); | |
} | |
_onChange = (editorState) => { | |
this.setState({ editorState: editorState }); | |
let options = { | |
blockRenderers: { | |
atomic: (block) => { | |
let entity; | |
let key= block.getEntityAt(0); | |
if(key){ | |
entity = editorState.getCurrentContent().getEntity(key); | |
}else{ | |
const contentStateWithEntity = editorState.getCurrentContent().createEntity("VIDEO", "IMMUTABLE", { | |
}); | |
const entityKey = contentStateWithEntity.getLastCreatedEntityKey(); | |
entity = editorState.getCurrentContent().getEntity(entityKey); | |
} | |
if (entity.getType() === 'VIDEO') { | |
const {src} = entity.getData(); | |
return '<figure><iframe width="560" height="315" src="'+src+'" frameBorder="0" allowfullscreen></iframe></figure>'; | |
} | |
}, | |
}, | |
}; | |
this.props.onChangeText('text',stateToHTML(editorState.getCurrentContent(), options)) | |
} | |
_promptForLink(e) { | |
e.preventDefault(); | |
const {editorState} = this.state; | |
const selection = editorState.getSelection(); | |
if (!selection.isCollapsed()) { | |
const contentState = editorState.getCurrentContent(); | |
const startKey = editorState.getSelection().getStartKey(); | |
const startOffset = editorState.getSelection().getStartOffset(); | |
const blockWithLinkAtBeginning = contentState.getBlockForKey(startKey); | |
const linkKey = blockWithLinkAtBeginning.getEntityAt(startOffset); | |
let url = ''; | |
if (linkKey) { | |
const linkInstance = contentState.getEntity(linkKey); | |
url = linkInstance.getData().url; | |
} | |
this.setState({ | |
showURLInput: true, | |
urlValue: url, | |
}, () => { | |
setTimeout(() => this.refs.url.focus(), 0); | |
}); | |
} | |
} | |
_confirmLink(e) { | |
e.preventDefault(); | |
const {editorState, urlValue} = this.state; | |
const contentState = editorState.getCurrentContent(); | |
const contentStateWithEntity = contentState.createEntity( | |
'LINK', | |
'MUTABLE', | |
{url: urlValue} | |
); | |
const entityKey = contentStateWithEntity.getLastCreatedEntityKey(); | |
const newEditorState = EditorState.set(editorState, { currentContent: contentStateWithEntity }); | |
this.setState({ | |
editorState: RichUtils.toggleLink( | |
newEditorState, | |
newEditorState.getSelection(), | |
entityKey | |
), | |
showURLInput: false, | |
urlValue: '', | |
}, () => { | |
setTimeout(() => this.refs.editor.focus(), 0); | |
}); | |
} | |
_onLinkInputKeyDown(e) { | |
if (e.which === 13) { | |
this._confirmLink(e); | |
} | |
} | |
_removeLink(e) { | |
e.preventDefault(); | |
const {editorState} = this.state; | |
const selection = editorState.getSelection(); | |
if (!selection.isCollapsed()) { | |
this.setState({ | |
editorState: RichUtils.toggleLink(editorState, selection, null), | |
}, () => { | |
setTimeout(() => this.refs.editor.focus(), 0); | |
}); | |
} | |
} | |
_toggleBlockType(blockType) { | |
this.onChange( | |
RichUtils.toggleBlockType( | |
this.state.editorState, | |
blockType | |
) | |
); | |
} | |
_toggleInlineStyle(inlineStyle) { | |
this.onChange( | |
RichUtils.toggleInlineStyle( | |
this.state.editorState, | |
inlineStyle | |
) | |
); | |
} | |
onAddImage=(e) => { | |
e.preventDefault(); | |
const editorState = this.state.editorState; | |
const reader = new FileReader() | |
const file = e.target.files[0] | |
if (!file) return | |
reader.onloadend = () => { | |
const urlValue = reader.result | |
const contentState = editorState.getCurrentContent(); | |
const contentStateWithEntity = contentState.createEntity( | |
"IMAGE", | |
"IMMUTABLE", | |
{src: urlValue} | |
); | |
const entityKey = contentStateWithEntity.getLastCreatedEntityKey(); | |
const newEditorState = EditorState.set( | |
editorState, | |
{currentContent: contentStateWithEntity}, | |
"create-entity" | |
); | |
this.setState( | |
{ | |
editorState: AtomicBlockUtils.insertAtomicBlock( | |
newEditorState, | |
entityKey, | |
" " | |
) | |
}, | |
() => { | |
setTimeout(() => this.focus(), 0); | |
} | |
); | |
} | |
reader.readAsDataURL(file) | |
}; | |
_confirmMedia(e) { | |
e.preventDefault(); | |
const {editorState, urlValue} = this.state; | |
const contentState = editorState.getCurrentContent(); | |
const contentStateWithEntity = contentState.createEntity( | |
'VIDEO', | |
'IMMUTABLE', | |
{src: urlValue} | |
); | |
const entityKey = contentStateWithEntity.getLastCreatedEntityKey(); | |
const newEditorState = EditorState.set( | |
editorState, | |
{currentContent: contentStateWithEntity}, | |
"create-entity" | |
); | |
this.setState({ | |
editorState: AtomicBlockUtils.insertAtomicBlock( | |
newEditorState, | |
entityKey, | |
' ' | |
), | |
showMediaInput: false, | |
urlValue: '', | |
}, () => { | |
setTimeout(() => this.focus(), 0); | |
}); | |
} | |
_promptForMedia() { | |
const {editorState} = this.state; | |
this.setState({ | |
showMediaInput: true, | |
urlValue: '', | |
}, () => { | |
setTimeout(() => this.refs.url.focus(), 0); | |
}); | |
} | |
render() { | |
const {editorState} = this.state; | |
let urlInput; | |
if (this.state.showURLInput || this.state.showMediaInput) { | |
urlInput = | |
<div style={styles.urlInputContainer}> | |
<input | |
onChange={this.onURLChange} | |
ref="url" | |
style={styles.urlInput} | |
type="text" | |
value={this.state.urlValue} | |
onKeyDown={this.onLinkInputKeyDown} | |
/> | |
{!this.state.showMediaInput ? | |
(<React.Fragment><button onMouseDown={this.confirmLink}> | |
Вставить | |
</button> | |
<button onClick={(e)=>this.removeLink(e)}> | |
Удалить | |
</button></React.Fragment>): | |
<button onMouseDown={this.confirmMedia}> | |
Вставить | |
</button>} | |
</div>; | |
} | |
return ( | |
<div style={styles.root}> | |
<div style={{marginBottom: 10}}> | |
<BlockStyleControls | |
editorState={editorState} | |
onToggle={this.toggleBlockType} | |
/> | |
<InlineStyleControls | |
editorState={editorState} | |
onToggle={this.toggleInlineStyle} | |
/> | |
<label> | |
<Svg name={'image_editor_button'} width={47} height={47}/> | |
<input onChange={(e)=>this.onAddImage(e)} placeholder={'image'} type="file" className="feed-form__file-input"/> | |
</label> | |
<label> | |
<Svg name={'link_button'} onClick={this.promptForLink} width={47} height={47}/> | |
</label> | |
<label> | |
<Svg name={'editor_video'} onClick={this.promptForMedia} width={47} height={47}/> | |
</label> | |
</div> | |
{urlInput} | |
<div style={styles.editor} onClick={this.focus}> | |
<Editor | |
editorState={this.state.editorState} | |
onChange={this.onChange} | |
plugins={plugins} | |
blockRendererFn={mediaBlockRenderer} | |
ref="editor" | |
/> | |
</div> | |
</div> | |
); | |
} | |
} | |
function findLinkEntities(contentBlock, callback, contentState) { | |
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} target="_blank" style={styles.link}> | |
{props.children} | |
</a> | |
); | |
}; | |
function findImageEntities(contentBlock, callback, contentState) { | |
contentBlock.findEntityRanges( | |
(character) => { | |
const entityKey = character.getEntity(); | |
return ( | |
entityKey !== null && | |
contentState.getEntity(entityKey).getType() === 'IMAGE' | |
); | |
}, | |
callback | |
); | |
} | |
function findVideoEntities(contentBlock, callback, contentState) { | |
contentBlock.findEntityRanges( | |
(character) => { | |
const entityKey = character.getEntity(); | |
return ( | |
entityKey !== null && | |
contentState.getEntity(entityKey).getType() === 'VIDEO' | |
); | |
}, | |
callback | |
); | |
} | |
const Image = (props) => { | |
return <img src={props.src} style={styles.media} />; | |
}; | |
function mediaBlockRenderer(block) { | |
if (block.getType() === 'atomic') { | |
return { | |
component: Media, | |
editable: false, | |
}; | |
} | |
return null; | |
} | |
const Video = (props) => { | |
return <iframe width="560" height="315" src={props.src} frameBorder="0" allowFullScreen></iframe> | |
}; | |
const Media = (props) => { | |
let entity; | |
let key= props.block.getEntityAt(0); | |
if(key){ | |
entity = props.contentState.getEntity(key); | |
}else{ | |
const contentStateWithEntity = props.contentState.createEntity("VIDEO", "IMMUTABLE", { src: 'src' | |
}); | |
const entityKey = contentStateWithEntity.getLastCreatedEntityKey(); | |
entity = props.contentState.getEntity(entityKey); | |
} | |
const {src} = entity.getData(); | |
const type = entity.getType(); | |
let media; | |
if (type === 'IMAGE') { | |
media = <Image src={src} />; | |
} else if (type === 'VIDEO' ) { | |
media = <Video src={src} />; | |
}else{ | |
console.log(type) | |
return null; | |
} | |
return media; | |
}; | |
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', | |
}, | |
urlInputContainer: { | |
marginBottom: 10, | |
}, | |
urlInput: { | |
fontFamily: '\'Georgia\', serif', | |
marginRight: 10, | |
padding: 3, | |
} | |
}; | |
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