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 base.require('base.utils');
   8 base.require('tracing.analysis.slice_view');
   9 base.require('tracing.analysis.util');
  10 base.require('tracing.analysis.analysis_link');
  11 base.requireTemplate('tracing.analysis.cpu_slice_view');
  12
  13 base.exportTo('tracing.analysis', function() {
  14   var tsRound = tracing.analysis.tsRound;
  15
  16   /**
  17    * @constructor
  18    */
  19   var CpuSliceView = ui.define('cpu-slice-view', tracing.analysis.SliceView);
  20
  21   CpuSliceView.prototype = {
  22     __proto__: tracing.analysis.SliceView.prototype,
  23
  24     decorate: function() {
  25       tracing.analysis.SliceView.prototype.decorate.call(this);
  26       this.classList.add('cpu-slice-view');
  27     },
  28
  29     updateContents: function() {
  30       this.textContent = '';
  31       this.appendChild(base.instantiateTemplate('#cpu-slice-view-template'));
  32
  33       var cpuSlice = this.slice;
  34       var thread = cpuSlice.threadThatWasRunning;
  35
  36       if (thread) {
  37         this.querySelector('#process-name').textContent =
  38             thread.parent.userFriendlyName;
  39         this.querySelector('#thread-name').textContent =
  40             thread.userFriendlyName;
  41       } else {
  42         this.querySelector('#process-name').parentElement.style.display =
  43             'none';
  44         this.querySelector('#thread-name').textContent = cpuSlice.title;
  45       }
  46       this.querySelector('#start').textContent = tsRound(cpuSlice.start) + 'ms';
  47       this.querySelector('#duration').textContent =
  48           tsRound(cpuSlice.duration) + 'ms';
  49       var runningThreadEl = this.querySelector('#running-thread');
  50       var timeSlice = cpuSlice.getAssociatedTimeslice();
  51       if (!timeSlice) {
  52         runningThreadEl.parentElement.style.display = 'none';
  53       } else {
  54         var threadLink = new tracing.analysis.AnalysisLink();
  55         threadLink.textContent = 'Click to select';
  56         threadLink.selectionGenerator = function() {
  57           var selection = new tracing.Selection();
  58           selection.push(timeSlice);
  59           return selection;
  60         }.bind(this);
  61         runningThreadEl.appendChild(threadLink);
  62       }
  63     }
  64   };
  65
  66   tracing.analysis.SliceView.register(
  67       'tracing.analysis.CpuSlice', CpuSliceView);
  68
  69   return {
  70     CpuSliceView: CpuSliceView
  71   };
  72 });