behavior-phui-file-upload.js
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	/**
	* @provides javelin-behavior-phui-file-upload
	* @requires javelin-behavior
	* javelin-stratcom
	* javelin-dom
	* phuix-dropdown-menu
	*/

	JX.behavior('phui-file-upload', function(config) {

	function startUpload(workflow, input) {
	var files = input.files;

	if (!files \|\| !files.length) {
	return;
	}

	var state = {
	workflow: workflow,
	input: input,
	waiting: 0,
	phids: []
	};

	var callback = JX.bind(null, didUpload, state);

	var dummy = input;
	var uploader = new JX.PhabricatorDragAndDropFileUpload(dummy)
	.setURI(config.uploadURI)
	.setChunkThreshold(config.chunkThreshold);

	uploader.listen('didUpload', callback);
	uploader.start();

	workflow.pause();
	for (var ii = 0; ii < files.length; ii++) {
	state.waiting++;
	uploader.sendRequest(files[ii]);
	}
	}

	function didUpload(state, file) {
	state.phids.push(file.getPHID());
	state.waiting--;

	if (state.waiting) {
	return;
	}

	state.workflow
	.addData(config.inputName, state.phids.join(', '))
	.resume();
	}

	JX.Workflow.listen('start', function(workflow) {
	var form = workflow.getSourceForm();
	if (!form) {
	return;
	}

	var input;
	try {
	input = JX.$(config.fileInputID);
	} catch (ex) {
	return;
	}

	var local_form = JX.DOM.findAbove(input, 'form');
	if (!local_form) {
	return;
	}

	if (local_form !== form) {
	return;
	}

	startUpload(workflow, input);
	});

	});