1<!DOCTYPE html>
2<!--
3Copyright (c) 2015 The Chromium Authors. All rights reserved.
4Use of this source code is governed by a BSD-style license that can be
5found in the LICENSE file.
6-->
7
8<link rel="import" href="/tracing/ui/tracks/chart_track.html">
9<link rel="import" href="/tracing/ui/tracks/container_track.html">
10<link rel="import" href="/tracing/ui/tracks/letter_dot_track.html">
11<link rel="import" href="/tracing/ui/tracks/memory_dump_track_util.html">
12
13<script>
14'use strict';
15
16tr.exportTo('tr.ui.tracks', function() {
17
18  var USED_MEMORY_TRACK_HEIGHT = 50;
19  var ALLOCATED_MEMORY_TRACK_HEIGHT = 50;
20
21  /**
22   * A track that displays an array of GlobalMemoryDump objects.
23   * @constructor
24   * @extends {ContainerTrack}
25   */
26  var GlobalMemoryDumpTrack = tr.ui.b.define(
27      'global-memory-dump-track', tr.ui.tracks.ContainerTrack);
28
29  GlobalMemoryDumpTrack.prototype = {
30    __proto__: tr.ui.tracks.ContainerTrack.prototype,
31
32    decorate: function(viewport) {
33      tr.ui.tracks.ContainerTrack.prototype.decorate.call(this, viewport);
34      this.memoryDumps_ = undefined;
35    },
36
37    get memoryDumps() {
38      return this.memoryDumps_;
39    },
40
41    set memoryDumps(memoryDumps) {
42      this.memoryDumps_ = memoryDumps;
43      this.updateContents_();
44    },
45
46    updateContents_: function() {
47      this.clearTracks_();
48
49      // Show no tracks if there are no dumps.
50      if (!this.memoryDumps_ || !this.memoryDumps_.length)
51        return;
52
53      this.appendDumpDotsTrack_();
54      this.appendUsedMemoryTrack_();
55      this.appendAllocatedMemoryTrack_();
56    },
57
58    appendDumpDotsTrack_: function() {
59      var items = tr.ui.tracks.buildMemoryLetterDots(this.memoryDumps_);
60      if (!items)
61        return;
62
63      var track = new tr.ui.tracks.LetterDotTrack(this.viewport);
64      track.heading = 'Memory Dumps';
65      track.items = items;
66      this.appendChild(track);
67    },
68
69    appendUsedMemoryTrack_: function() {
70      var series = tr.ui.tracks.buildGlobalUsedMemoryChartSeries(
71          this.memoryDumps_);
72      if (!series)
73        return;
74
75      var track = new tr.ui.tracks.ChartTrack(this.viewport);
76      track.heading = 'Memory per process';
77      track.height = USED_MEMORY_TRACK_HEIGHT + 'px';
78      track.series = series;
79      track.autoSetAllAxes({expandMax: true});
80      this.appendChild(track);
81    },
82
83    appendAllocatedMemoryTrack_: function() {
84      var series = tr.ui.tracks.buildGlobalAllocatedMemoryChartSeries(
85          this.memoryDumps_);
86      if (!series)
87        return;
88
89      var track = new tr.ui.tracks.ChartTrack(this.viewport);
90      track.heading = 'Memory per component';
91      track.height = ALLOCATED_MEMORY_TRACK_HEIGHT + 'px';
92      track.series = series;
93      track.autoSetAllAxes({expandMax: true});
94      this.appendChild(track);
95    }
96  };
97
98  return {
99    GlobalMemoryDumpTrack: GlobalMemoryDumpTrack
100  };
101});
102</script>
103