| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| <link rel="import" href="/base/base.html"> |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.c', function() { |
| function makeCaseInsensitiveRegex(pattern) { |
| // See https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/ |
| // Regular_Expressions. |
| pattern = pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); |
| return new RegExp(pattern, 'i'); |
| } |
| |
| /** |
| * @constructor The generic base class for filtering a Model based on |
| * various rules. The base class returns true for everything. |
| */ |
| function Filter() { } |
| |
| Filter.prototype = { |
| __proto__: Object.prototype, |
| |
| matchCounter: function(counter) { |
| return true; |
| }, |
| |
| matchCpu: function(cpu) { |
| return true; |
| }, |
| |
| matchProcess: function(process) { |
| return true; |
| }, |
| |
| matchSlice: function(slice) { |
| return true; |
| }, |
| |
| matchThread: function(thread) { |
| return true; |
| } |
| }; |
| |
| /** |
| * @constructor A filter that matches objects by their name or category |
| * case insensitive. |
| * .findAllObjectsMatchingFilter |
| */ |
| function TitleOrCategoryFilter(text) { |
| Filter.call(this); |
| this.regex_ = makeCaseInsensitiveRegex(text); |
| |
| if (!text.length) |
| throw new Error('Filter text is empty.'); |
| } |
| TitleOrCategoryFilter.prototype = { |
| __proto__: Filter.prototype, |
| |
| matchSlice: function(slice) { |
| if (slice.title === undefined && slice.category === undefined) |
| return false; |
| |
| return this.regex_.test(slice.title) || |
| (!!slice.category && this.regex_.test(slice.category)); |
| } |
| }; |
| |
| /** |
| * @constructor A filter that matches objects with the exact given title. |
| */ |
| function ExactTitleFilter(text) { |
| Filter.call(this); |
| this.text_ = text; |
| |
| if (!text.length) |
| throw new Error('Filter text is empty.'); |
| } |
| ExactTitleFilter.prototype = { |
| __proto__: Filter.prototype, |
| |
| matchSlice: function(slice) { |
| return slice.title === this.text_; |
| } |
| }; |
| |
| /** |
| * @constructor A filter that matches objects by their full text contents |
| * (title, category, args). Note that for performance this filter applies a |
| * regex against all the keys of the slice arguments instead of recursing |
| * through any embedded sub-objects. |
| */ |
| function FullTextFilter(text) { |
| Filter.call(this); |
| this.regex_ = makeCaseInsensitiveRegex(text); |
| this.titleOrCategoryFilter_ = new TitleOrCategoryFilter(text); |
| } |
| FullTextFilter.prototype = { |
| __proto__: Filter.prototype, |
| |
| matchObject_: function(obj) { |
| for (var key in obj) { |
| if (!obj.hasOwnProperty(key)) |
| continue; |
| if (this.regex_.test(key)) |
| return true; |
| if (this.regex_.test(obj[key])) |
| return true; |
| } |
| return false; |
| }, |
| |
| matchSlice: function(slice) { |
| if (this.titleOrCategoryFilter_.matchSlice(slice)) |
| return true; |
| return this.matchObject_(slice.args); |
| } |
| }; |
| |
| return { |
| Filter: Filter, |
| TitleOrCategoryFilter: TitleOrCategoryFilter, |
| ExactTitleFilter: ExactTitleFilter, |
| FullTextFilter: FullTextFilter |
| }; |
| }); |
| </script> |
