behavior-show-all-comments.js
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behavior-show-all-comments.js
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	/**
	* @provides javelin-behavior-phabricator-show-all-transactions
	* @requires javelin-behavior
	* javelin-stratcom
	* javelin-dom
	*/

	/**
	* Automatically show older transactions if the user follows an anchor to a
	* transaction which is hidden by the "N older changes are hidden." shield.
	*/
	JX.behavior('phabricator-show-all-transactions', function(config) {

	var revealed = false;

	function get_hash() {
	return window.location.hash.replace(/^#/, '');
	}

	function hash_is_hidden() {
	var hash = get_hash();
	for (var ii = 0; ii < config.anchors.length; ii++) {
	if (config.anchors[ii] == hash) {
	return true;
	}
	}
	return false;
	}

	function reveal() {
	if (revealed) {
	return false;
	}

	JX.DOM.hide(JX.$(config.hideID));
	JX.DOM.show(JX.$(config.showID));
	revealed = true;

	return true;
	}

	function check_hash() {
	if (hash_is_hidden()) {
	if (reveal()) {
	try {
	var target = JX.$(get_hash());
	JX.DOM.scrollTo(target);
	} catch (ignored) {
	// We did our best.
	}
	}
	}
	}

	JX.DOM.listen(
	JX.$(config.linkID),
	'click',
	null,
	function (e) {
	e.kill();
	reveal();
	});

	JX.Stratcom.listen('hashchange', null, check_hash);
	check_hash();
	});