hellendag/gist:6cd425613caabb7f238d

## gistfile1.txt
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>Draft • Decorators</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="../../node_modules/babel-core/browser.js"></script>
    <script src="../../dist/Draft.js"></script>
    <script type="text/babel">
      'use strict';

      const {CompositeDecorator, Editor, EditorState, Modifier, SelectionState} = Draft;


      const Draggable = (props) => {
        const onDragStart = (e) => {
          e.dataTransfer.dropEffect = 'move';
          e.dataTransfer.setData("text", props.block.key);
        };
        return (
          <div
            contentEditable={false}
            onDragStart={onDragStart}
            draggable="true"
            style={styles.draggable}
          />
        )
      };

      class MarkdownEditorExample extends React.Component {
        constructor(props) {
          super(props);

          this.state = {
            editorState: EditorState.createEmpty(),
          };

          this.focus = () => this.refs.editor.focus();
          this.onChange = (editorState) => this.setState({editorState});
          this.logState = () => console.log(this.state.editorState.toJS());
          this.drop = this._drop.bind(this);

          this.blockRenderer = (contentBlock) => {
            const type = contentBlock.getType();
            if (type === 'draggable') {
              return {
                component: Draggable,
                props: {
                  onDrop: this.drop,
                }
              };
            }
          }
        }

        addBlock() {
          const {editorState} = this.state;
          const contentState = editorState.getCurrentContent();
          const selectionState = editorState.getSelection();

          const afterRemoval = Modifier.removeRange(
            contentState,
            selectionState,
            'backward'
          );

          const targetSelection = afterRemoval.getSelectionAfter();
          const afterSplit = Modifier.splitBlock(
            afterRemoval,
            targetSelection
          );
          const insertionTarget = afterSplit.getSelectionAfter();

          const insertText = Modifier.insertText(
            afterSplit,
            insertionTarget,
            ' '
          );

          const asMedia = Modifier.setBlockType(
            insertText,
            insertText.getSelectionAfter(),
            'draggable'
          );

          this.setState({
            editorState: EditorState.push(
              editorState,
              asMedia,
              'insert-fragment'
            ),
          });
        }

        _drop(e, dropSelection) {
          const blockKey = e.dataTransfer.getData("text");
          // Set timeout to allow cursor/selection to move to drop location

          // Get content, selection, block
          const {editorState} = this.state;
          const content = editorState.getCurrentContent();
          const block = content.getBlockForKey(blockKey);

          const draggedRange = new SelectionState({
            anchorKey: blockKey,
            anchorOffset: 0,
            focusKey: blockKey,
            focusOffset: block.getLength(),
            isBackward: false,
          });

          // Split on drop location and set block type
          const afterFirstSplit = Modifier.splitBlock(content, dropSelection);
          const targetSelection = afterFirstSplit.getSelectionAfter();
          const afterSecondSplit = Modifier.splitBlock(
            afterFirstSplit,
            targetSelection
          );
          const afterMove = Modifier.moveText(
            afterSecondSplit,
            draggedRange,
            targetSelection
          );
          const resetAsDraggable = Modifier.setBlockType(
            afterMove,
            afterMove.getSelectionAfter(),
            block.getType()
          );

          const blockAfterDraggable = resetAsDraggable.getBlockAfter(blockKey);
          const cursorKey = blockAfterDraggable.getKey();
          const moveSelection = resetAsDraggable.merge({
            selectionBefore: dropSelection,
            selectionAfter: new SelectionState({
              anchorKey: cursorKey,
              anchorOffset: 0,
              focusKey: cursorKey,
              focusOffset: 0,
              isBackward: false,
            }),
          });

          this.setState({
            editorState: EditorState.push(
              editorState,
              moveSelection,
              'insert-fragment'
            ),
          });

          return true;
        }

        render() {
          return (
            <div style={styles.root}>
              <div style={styles.editor}
                onClick={this.focus}
                onDragOver={(e) => e.preventDefault()}>
                <Editor
                  blockRendererFn={this.blockRenderer}
                  editorState={this.state.editorState}
                  handleDrop={this.drop}
                  onChange={this.onChange}
                  placeholder="Write a tweet..."
                  ref="editor"
                  spellCheck={true}
                />
              </div>
              <input
                onClick={this.logState}
                style={styles.button}
                type="button"
                value="Log State"
              />
              <input
                onClick={this.addBlock.bind(this)}
                style={styles.button}
                type="button"
                value="Add block"
              />
            </div>
          );
        }
      }

      const styles = {
        root: {
          fontFamily: '\'Helvetica\', sans-serif',
          padding: 20,
          width: 600,
        },
        editor: {
          border: '1px solid #ddd',
          cursor: 'text',
          fontSize: 16,
          minHeight: 40,
          padding: 10,
        },
        draggable: {
          backgroundColor: 'rgba(98, 177, 254, 1.0)',
          width: 40,
          height: 40,
        },
        button: {
          marginTop: 10,
          textAlign: 'center',
        }
      };

      ReactDOM.render(
        <MarkdownEditorExample />,
        document.getElementById('target')
      );
    </script>
  </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<title>Draft • Decorators</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="../../node_modules/babel-core/browser.js"></script>
	<script src="../../dist/Draft.js"></script>
	<script type="text/babel">
	'use strict';

	const {CompositeDecorator, Editor, EditorState, Modifier, SelectionState} = Draft;


	const Draggable = (props) => {
	const onDragStart = (e) => {
	e.dataTransfer.dropEffect = 'move';
	e.dataTransfer.setData("text", props.block.key);
	};
	return (
	<div
	contentEditable={false}
	onDragStart={onDragStart}
	draggable="true"
	style={styles.draggable}
	/>
	)
	};

	class MarkdownEditorExample extends React.Component {
	constructor(props) {
	super(props);

	this.state = {
	editorState: EditorState.createEmpty(),
	};

	this.focus = () => this.refs.editor.focus();
	this.onChange = (editorState) => this.setState({editorState});
	this.logState = () => console.log(this.state.editorState.toJS());
	this.drop = this._drop.bind(this);

	this.blockRenderer = (contentBlock) => {
	const type = contentBlock.getType();
	if (type === 'draggable') {
	return {
	component: Draggable,
	props: {
	onDrop: this.drop,
	}
	};
	}
	}
	}

	addBlock() {
	const {editorState} = this.state;
	const contentState = editorState.getCurrentContent();
	const selectionState = editorState.getSelection();

	const afterRemoval = Modifier.removeRange(
	contentState,
	selectionState,
	'backward'
	);

	const targetSelection = afterRemoval.getSelectionAfter();
	const afterSplit = Modifier.splitBlock(
	afterRemoval,
	targetSelection
	);
	const insertionTarget = afterSplit.getSelectionAfter();

	const insertText = Modifier.insertText(
	afterSplit,
	insertionTarget,
	' '
	);

	const asMedia = Modifier.setBlockType(
	insertText,
	insertText.getSelectionAfter(),
	'draggable'
	);

	this.setState({
	editorState: EditorState.push(
	editorState,
	asMedia,
	'insert-fragment'
	),
	});
	}

	_drop(e, dropSelection) {
	const blockKey = e.dataTransfer.getData("text");
	// Set timeout to allow cursor/selection to move to drop location

	// Get content, selection, block
	const {editorState} = this.state;
	const content = editorState.getCurrentContent();
	const block = content.getBlockForKey(blockKey);

	const draggedRange = new SelectionState({
	anchorKey: blockKey,
	anchorOffset: 0,
	focusKey: blockKey,
	focusOffset: block.getLength(),
	isBackward: false,
	});

	// Split on drop location and set block type
	const afterFirstSplit = Modifier.splitBlock(content, dropSelection);
	const targetSelection = afterFirstSplit.getSelectionAfter();
	const afterSecondSplit = Modifier.splitBlock(
	afterFirstSplit,
	targetSelection
	);
	const afterMove = Modifier.moveText(
	afterSecondSplit,
	draggedRange,
	targetSelection
	);
	const resetAsDraggable = Modifier.setBlockType(
	afterMove,
	afterMove.getSelectionAfter(),
	block.getType()
	);

	const blockAfterDraggable = resetAsDraggable.getBlockAfter(blockKey);
	const cursorKey = blockAfterDraggable.getKey();
	const moveSelection = resetAsDraggable.merge({
	selectionBefore: dropSelection,
	selectionAfter: new SelectionState({
	anchorKey: cursorKey,
	anchorOffset: 0,
	focusKey: cursorKey,
	focusOffset: 0,
	isBackward: false,
	}),
	});

	this.setState({
	editorState: EditorState.push(
	editorState,
	moveSelection,
	'insert-fragment'
	),
	});

	return true;
	}

	render() {
	return (
	<div style={styles.root}>
	<div style={styles.editor}
	onClick={this.focus}
	onDragOver={(e) => e.preventDefault()}>
	<Editor
	blockRendererFn={this.blockRenderer}
	editorState={this.state.editorState}
	handleDrop={this.drop}
	onChange={this.onChange}
	placeholder="Write a tweet..."
	ref="editor"
	spellCheck={true}
	/>
	</div>
	<input
	onClick={this.logState}
	style={styles.button}
	type="button"
	value="Log State"
	/>
	<input
	onClick={this.addBlock.bind(this)}
	style={styles.button}
	type="button"
	value="Add block"
	/>
	</div>
	);
	}
	}

	const styles = {
	root: {
	fontFamily: '\'Helvetica\', sans-serif',
	padding: 20,
	width: 600,
	},
	editor: {
	border: '1px solid #ddd',
	cursor: 'text',
	fontSize: 16,
	minHeight: 40,
	padding: 10,
	},
	draggable: {
	backgroundColor: 'rgba(98, 177, 254, 1.0)',
	width: 40,
	height: 40,
	},
	button: {
	marginTop: 10,
	textAlign: 'center',
	}
	};

	ReactDOM.render(
	<MarkdownEditorExample />,
	document.getElementById('target')
	);
	</script>
	</body>
	</html>