behavior-form.js
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behavior-form.js
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	/**
	* @requires javelin-behavior javelin-stratcom javelin-dom
	* @provides javelin-behavior-aphront-form-disable-on-submit
	*/

	JX.behavior('aphront-form-disable-on-submit', function(config) {

	var restore = [];
	var root = null;
	var new_tab = false;

	JX.Stratcom.listen('click', 'tag:button', function(e) {
	var raw = e.getRawEvent();
	new_tab = (raw.altKey \|\| raw.ctrlKey \|\| raw.metaKey \|\| raw.shiftKey);
	});

	JX.Stratcom.listen('submit', 'tag:form', function(e) {
	if (e.getNode('workflow')) {
	// Don't activate for forms with workflow, the workflow behavior will
	// handle it.
	return;
	}

	root = e.getNode('tag:form');

	// Open the form to a new tab in Firefox explicitly (automatic in Chrome).
	// We render some buttons as links so users may be confused that the links
	// don't open to new tabs with Ctrl+click as normal links.
	root.target = (new_tab ? '_blank' : '');
	if (new_tab) {
	return;
	}

	if (root._disabled) {
	e.kill();
	}
	root._disabled = true;
	var buttons = JX.DOM.scry(root, 'button');
	for (var ii = 0; ii < buttons.length; ii++) {
	if (!buttons[ii].disabled) {
	buttons[ii].disabled = 'disabled';
	JX.DOM.alterClass(buttons[ii], 'disabled', true);
	restore.push(buttons[ii]);
	}
	}
	});

	JX.Stratcom.listen('unload', null, function(e) {
	// Reenable everything on page unload so we don't bfcache back to a page
	// that has disabled forms.
	for (var ii = 0; ii < restore.length; ii++) {
	restore[ii].disabled = '';
	JX.DOM.alterClass(restore[ii], 'disabled', false);
	root._disabled = false;
	}
	if (root) {
	delete root._disabled;
	}
	restore = [];
	root = null;
	});

	});