behavior-transaction-list.js
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	/**
	* @provides javelin-behavior-phabricator-transaction-list
	* @requires javelin-behavior
	* javelin-stratcom
	* javelin-workflow
	* javelin-dom
	* javelin-fx
	* javelin-uri
	* phabricator-textareautils
	*/

	JX.behavior('phabricator-transaction-list', function(config) {

	var list = JX.$(config.listID);
	var xaction_nodes = null;
	var next_anchor = config.nextAnchor;

	function get_xaction_nodes() {
	if (xaction_nodes === null) {
	xaction_nodes = {};
	var xactions = JX.DOM.scry(list, 'div', 'transaction');
	for (var ii = 0; ii < xactions.length; ii++) {
	xaction_nodes[JX.Stratcom.getData(xactions[ii]).phid] = xactions[ii];
	}
	}
	return xaction_nodes;
	}

	function ontransactions(response) {
	var fade_in = [];
	var first_new = null;

	var nodes = get_xaction_nodes();
	for (var phid in response.xactions) {
	var new_node = JX.$H(response.xactions[phid]).getFragment().firstChild;
	fade_in.push(new_node);

	if (nodes[phid]) {
	JX.DOM.replace(nodes[phid], new_node);
	} else {
	if (first_new === null) {
	first_new = new_node;
	}
	list.appendChild(new_node);

	// Add a spacer after new transactions.
	var spacer = JX.$H(response.spacer).getFragment().firstChild;
	list.appendChild(spacer);
	fade_in.push(spacer);

	next_anchor++;
	}
	nodes[phid] = new_node;
	}

	// Scroll to the first new transaction, if transactions were added.
	if (first_new) {
	JX.DOM.scrollTo(first_new);
	}

	// Make any new or updated transactions fade in.
	for (var ii = 0; ii < fade_in.length; ii++) {
	new JX.FX(fade_in[ii]).setDuration(500).start({opacity: [0, 1]});
	}
	}

	JX.Stratcom.listen(
	'click',
	[['transaction-edit'], ['transaction-remove']],
	function(e) {
	if (!e.isNormalClick()) {
	return;
	}

	e.prevent();

	var anchor = e.getNodeData('tag:a').anchor;
	var uri = JX.$U(window.location).setFragment(anchor);

	JX.Workflow.newFromLink(e.getNode('tag:a'))
	.setHandler(function() {
	// In most cases, `uri` is on the same page (just at a new anchor),
	// so we have to call reload() explicitly to get the browser to
	// refresh the page. It would be nice to just issue a server-side
	// redirect instead, but there isn't currently an easy way to do
	// that without complexity and/or a semi-open redirect.
	uri.go();
	window.location.reload();
	})
	.start();
	});

	JX.Stratcom.listen(
	'click',
	'transaction-quote',
	function(e) {
	e.prevent();

	var data = e.getNodeData('transaction-quote');
	new JX.Workflow(data.uri)
	.setData({ref: data.ref})
	.setHandler(function(r) {
	var textarea = JX.$(data.targetID);

	JX.DOM.scrollTo(textarea);

	var value = textarea.value;
	if (value.length) {
	value += "\n\n";
	}
	value += r.quoteText;
	value += "\n\n";
	textarea.value = value;

	JX.TextAreaUtils.setSelectionRange(
	textarea,
	textarea.value.length,
	textarea.value.length);
	})
	.start();
	});

	JX.Stratcom.listen(
	['submit', 'didSyntheticSubmit'],
	'transaction-append',
	function(e) {
	var form = e.getTarget();
	if (JX.Stratcom.getData(form).objectPHID != config.objectPHID) {
	// This indicates there are several forms on the page, and the user
	// submitted a different one than the one we're in control of.
	return;
	}

	e.kill();

	JX.DOM.invoke(form, 'willSubmit');

	JX.Workflow.newFromForm(form, { anchor : next_anchor })
	.setHandler(function(response) {
	ontransactions(response);

	var e = JX.DOM.invoke(form, 'willClear');
	if (!e.getPrevented()) {
	var ii;
	var textareas = JX.DOM.scry(form, 'textarea');
	for (ii = 0; ii < textareas.length; ii++) {
	textareas[ii].value = '';
	}

	var inputs = JX.DOM.scry(form, 'input');
	for (ii = 0; ii < inputs.length; ii++) {
	switch (inputs[ii].type) {
	case 'password':
	case 'text':
	inputs[ii].value = '';
	break;
	case 'checkbox':
	case 'radio':
	inputs[ii].checked = false;
	break;
	}
	}

	var selects = JX.DOM.scry(form, 'select');
	var jj;
	for (ii = 0; ii < selects.length; ii++) {
	if (selects[ii].type == 'select-one') {
	selects[ii].selectedIndex = 0;
	} else {
	for (jj = 0; jj < selects[ii].options.length; jj++) {
	selects[ii].options[jj].selected = false;
	}
	}
	}
	}
	})
	.start();

	});
	});

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