behavior-drag-and-drop-textarea.js
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behavior-drag-and-drop-textarea.js
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	/**
	* @provides javelin-behavior-aphront-drag-and-drop-textarea
	* @requires javelin-behavior
	* javelin-dom
	* phabricator-drag-and-drop-file-upload
	* phabricator-textareautils
	*/

	JX.behavior('aphront-drag-and-drop-textarea', function(config) {

	var target = JX.$(config.target);

	function onupload(f) {
	var text = JX.TextAreaUtils.getSelectionText(target);
	var ref = '{F' + f.getID() + '}';

	// If the user has dragged and dropped multiple files, we'll get an event
	// each time an upload completes. Rather than overwriting the first
	// reference, append the new reference if the selected text looks like an
	// existing file reference.
	if (text.match(/^\{F/)) {
	ref = text + '\n\n' + ref;
	}

	JX.TextAreaUtils.setSelectionText(target, ref);
	}

	if (JX.PhabricatorDragAndDropFileUpload.isSupported()) {
	var drop = new JX.PhabricatorDragAndDropFileUpload(target)
	.setURI(config.uri);
	drop.listen('didBeginDrag', function() {
	JX.DOM.alterClass(target, config.activatedClass, true);
	});
	drop.listen('didEndDrag', function() {
	JX.DOM.alterClass(target, config.activatedClass, false);
	});
	drop.listen('didUpload', onupload);
	drop.start();
	}

	});