131 lines
4 KiB
JavaScript
131 lines
4 KiB
JavaScript
;(function(window) {
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'use strict';
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/** The base path of the lodash builds. */
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var basePath = '../';
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/** The lodash build to load. */
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var build = (build = /build=([^&]+)/.exec(location.search)) && decodeURIComponent(build[1]);
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/** The other library to load. */
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var other = (other = /other=([^&]+)/.exec(location.search)) && decodeURIComponent(other[1]);
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/** The `ui` object. */
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var ui = {};
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/*--------------------------------------------------------------------------*/
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/**
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* Registers an event listener on an element.
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*
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* @private
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* @param {Element} element The element.
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* @param {string} eventName The name of the event.
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* @param {Function} handler The event handler.
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* @returns {Element} The element.
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*/
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function addListener(element, eventName, handler) {
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if (typeof element.addEventListener != 'undefined') {
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element.addEventListener(eventName, handler, false);
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} else if (typeof element.attachEvent != 'undefined') {
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element.attachEvent('on' + eventName, handler);
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}
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}
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/*--------------------------------------------------------------------------*/
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// Initialize controls.
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addListener(window, 'load', function() {
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function eventHandler(event) {
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var buildIndex = buildList.selectedIndex,
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otherIndex = otherList.selectedIndex,
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search = location.search.replace(/^\?|&?(?:build|other)=[^&]*&?/g, '');
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if (event.stopPropagation) {
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event.stopPropagation();
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} else {
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event.cancelBubble = true;
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}
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location.href =
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location.href.split('?')[0] + '?' +
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(search ? search + '&' : '') +
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'build=' + (buildIndex < 0 ? build : buildList[buildIndex].value) + '&' +
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'other=' + (otherIndex < 0 ? other : otherList[otherIndex].value);
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}
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var span1 = document.createElement('span');
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span1.style.cssText = 'float:right';
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span1.innerHTML =
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'<label for="perf-build">Build: </label>' +
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'<select id="perf-build">' +
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'<option value="lodash">lodash</option>' +
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'</select>';
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var span2 = document.createElement('span');
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span2.style.cssText = 'float:right';
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span2.innerHTML =
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'<label for="perf-other">Other Library: </label>' +
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'<select id="perf-other">' +
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'<option value="underscore-dev">Underscore (development)</option>' +
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'<option value="underscore">Underscore (production)</option>' +
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'<option value="lodash">lodash</option>' +
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'</select>';
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var buildList = span1.lastChild,
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otherList = span2.lastChild,
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toolbar = document.getElementById('perf-toolbar');
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toolbar.appendChild(span2);
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toolbar.appendChild(span1);
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buildList.selectedIndex = (function() {
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switch (build) {
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case 'lodash':
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case null: return 0;
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}
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return -1;
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}());
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otherList.selectedIndex = (function() {
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switch (other) {
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case 'underscore-dev': return 0;
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case 'lodash': return 2;
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case 'underscore':
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case null: return 1;
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}
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return -1;
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}());
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addListener(buildList, 'change', eventHandler);
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addListener(otherList, 'change', eventHandler);
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});
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// The lodash build file path.
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ui.buildPath = (function() {
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var result;
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switch (build) {
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case null: build = 'lodash';
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case 'lodash': result = 'dist/lodash.min.js'; break;
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default: return build;
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}
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return basePath + result;
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}());
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// The other library file path.
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ui.otherPath = (function() {
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var result;
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switch (other) {
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case 'lodash': result = 'dist/lodash.min.js'; break;
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case 'underscore-dev': result = 'vendor/underscore/underscore.js'; break;
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case null: other = 'underscore';
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case 'underscore': result = 'vendor/underscore/underscore-min.js'; break;
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default: return other;
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}
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return basePath + result;
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}());
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ui.urlParams = { 'build': build, 'other': other };
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window.ui = ui;
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}(this));
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