src/third_party/trace-viewer/trace_viewer/tracing/find_controller.html

   1 <!DOCTYPE html>
   2 <!--
   3 Copyright (c) 2012 The Chromium Authors. All rights reserved.
   4 Use of this source code is governed by a BSD-style license that can be
   5 found in the LICENSE file.
   6 -->
   7
   8 <link rel="import" href="/tracing/filter.html">
   9 <link rel="import" href="/tracing/selection.html">
  10
  11 <script>
  12 'use strict';
  13
  14 /**
  15  * @fileoverview FindController.
  16  */
  17 tvcm.exportTo('tracing', function() {
  18   function FindController() {
  19     this.timeline_ = undefined;
  20     this.model_ = undefined;
  21     this.filterText_ = '';
  22     this.filterHits_ = new tracing.Selection();
  23     this.filterHitsDirty_ = true;
  24     this.currentHitIndex_ = -1;
  25   };
  26
  27   FindController.prototype = {
  28     __proto__: Object.prototype,
  29
  30     get timeline() {
  31       return this.timeline_;
  32     },
  33
  34     set timeline(t) {
  35       this.timeline_ = t;
  36       this.filterHitsDirty_ = true;
  37     },
  38
  39     get filterText() {
  40       return this.filterText_;
  41     },
  42
  43     set filterText(f) {
  44       if (f == this.filterText_)
  45         return;
  46       this.filterText_ = f;
  47       this.filterHitsDirty_ = true;
  48
  49       if (!this.timeline)
  50         return;
  51
  52       this.timeline.setHighlightAndClearSelection(this.filterHits);
  53     },
  54
  55     get filterHits() {
  56       if (this.filterHitsDirty_) {
  57         this.filterHitsDirty_ = false;
  58         this.filterHits_ = new tracing.Selection();
  59         this.currentHitIndex_ = -1;
  60
  61         if (this.timeline_ && this.filterText.length) {
  62           var filter = new tracing.TitleFilter(this.filterText);
  63           this.timeline.addAllObjectsMatchingFilterToSelection(
  64               filter, this.filterHits_);
  65         }
  66       }
  67       return this.filterHits_;
  68     },
  69
  70     get currentHitIndex() {
  71       return this.currentHitIndex_;
  72     },
  73
  74     find_: function(dir) {
  75       var firstHit = this.currentHitIndex_ === -1;
  76       if (firstHit && dir < 0)
  77         this.currentHitIndex_ = 0;
  78
  79       var N = this.filterHits.length;
  80       this.currentHitIndex_ = (this.currentHitIndex_ + dir + N) % N;
  81
  82       if (!this.timeline)
  83         return;
  84
  85       this.timeline.selection =
  86           this.filterHits.subSelection(this.currentHitIndex_, 1);
  87     },
  88
  89     findNext: function() {
  90       this.find_(1);
  91     },
  92
  93     findPrevious: function() {
  94       this.find_(-1);
  95     },
  96
  97     reset: function() {
  98       this.filterText_ = '';
  99       this.filterHitsDirty_ = true;
 100     }
 101   };
 102
 103   return {
 104     FindController: FindController
 105   };
 106 });
 107 </script>