better-testing

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();
			});