src/third_party/trace-viewer/src/tracing/analysis/cpu_slice_view.js

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 tvcm.require('tvcm.utils');
   8 tvcm.require('tracing.analysis.slice_view');
   9 tvcm.require('tracing.analysis.util');
  10 tvcm.require('tracing.analysis.analysis_link');
  11 tvcm.requireTemplate('tracing.analysis.cpu_slice_view');
  12
  13 tvcm.exportTo('tracing.analysis', function() {
  14   var tsRound = tracing.analysis.tsRound;
  15
  16   /**
  17    * @constructor
  18    */
  19   var CpuSliceView = tvcm.ui.define('cpu-slice-view',
  20                                     tracing.analysis.SliceView);
  21
  22   CpuSliceView.prototype = {
  23     __proto__: tracing.analysis.SliceView.prototype,
  24
  25     decorate: function() {
  26       tracing.analysis.SliceView.prototype.decorate.call(this);
  27       this.classList.add('cpu-slice-view');
  28     },
  29
  30     updateContents: function() {
  31       this.textContent = '';
  32       this.appendChild(tvcm.instantiateTemplate('#cpu-slice-view-template'));
  33
  34       var cpuSlice = this.slice;
  35       var thread = cpuSlice.threadThatWasRunning;
  36
  37       if (thread) {
  38         this.querySelector('#process-name').textContent =
  39             thread.parent.userFriendlyName;
  40         this.querySelector('#thread-name').textContent =
  41             thread.userFriendlyName;
  42       } else {
  43         this.querySelector('#process-name').parentElement.style.display =
  44             'none';
  45         this.querySelector('#thread-name').textContent = cpuSlice.title;
  46       }
  47       this.querySelector('#start').textContent = tsRound(cpuSlice.start) + 'ms';
  48       this.querySelector('#duration').textContent =
  49           tsRound(cpuSlice.duration) + 'ms';
  50       var runningThreadEl = this.querySelector('#running-thread');
  51       var timeSlice = cpuSlice.getAssociatedTimeslice();
  52       if (!timeSlice) {
  53         runningThreadEl.parentElement.style.display = 'none';
  54       } else {
  55         var threadLink = new tracing.analysis.AnalysisLink();
  56         threadLink.textContent = 'Click to select';
  57         threadLink.selectionGenerator = function() {
  58           var selection = new tracing.Selection();
  59           selection.push(timeSlice);
  60           return selection;
  61         }.bind(this);
  62         runningThreadEl.appendChild(threadLink);
  63       }
  64     }
  65   };
  66
  67   tracing.analysis.SliceView.register(
  68       'tracing.analysis.CpuSlice', CpuSliceView);
  69
  70   return {
  71     CpuSliceView: CpuSliceView
  72   };
  73 });