Moving the contents of chrome://gpu Profiling to chrome://tracing.

chrome/browser/resources/gpu_internals/tracing_controller.js

-// Copyright (c) 2011 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.
-
-
-/**
- * @fileoverview State and UI for trace data collection.
- */
-cr.define('gpu', function() {
-
-  function TracingController() {
-    this.overlay_ = document.createElement('div');
-    this.overlay_.className = 'gpu-tracing-overlay';
-
-    cr.ui.decorate(this.overlay_, gpu.Overlay);
-
-    this.statusDiv_ = document.createElement('div');
-    this.overlay_.appendChild(this.statusDiv_);
-
-    this.bufferPercentDiv_ = document.createElement('div');
-    this.overlay_.appendChild(this.bufferPercentDiv_);
-
-    this.stopButton_ = document.createElement('button');
-    this.stopButton_.onclick = this.endTracing.bind(this);
-    this.stopButton_.textContent = 'Stop tracing';
-    this.overlay_.appendChild(this.stopButton_);
-
-    this.traceEvents_ = [];
-
-    if (browserBridge.debugMode) {
-      var tracingControllerTests = document.createElement('script');
-      tracingControllerTests.src =
-          './gpu_internals/tracing_controller_tests.js';
-      document.body.appendChild(tracingControllerTests);
-    }
-
-    this.onKeydownBoundToThis_ = this.onKeydown_.bind(this);
-    this.onKeypressBoundToThis_ = this.onKeypress_.bind(this);
-  }
-
-  TracingController.prototype = {
-    __proto__: cr.EventTarget.prototype,
-
-    tracingEnabled_: false,
-    tracingEnding_: false,
-
-    onRequestBufferPercentFullComplete: function(percent_full) {
-      if (!this.overlay_.visible)
-        return;
-
-      window.setTimeout(this.beginRequestBufferPercentFull_.bind(this), 250);
-
-      this.bufferPercentDiv_.textContent = 'Buffer usage: ' +
-          Math.round(100 * percent_full) + '%';
-    },
-
-    /**
-     * Begin requesting the buffer fullness
-     */
-    beginRequestBufferPercentFull_: function() {
-      chrome.send('beginRequestBufferPercentFull');
-    },
-
-    /**
-     * Called by info_view to empty the trace buffer
-     */
-    beginTracing: function() {
-      if (this.tracingEnabled_)
-        throw Error('Tracing already begun.');
-
-      this.stopButton_.hidden = false;
-      this.statusDiv_.textContent = 'Tracing active.';
-      this.overlay_.visible = true;
-
-      this.tracingEnabled_ = true;
-      console.log('Beginning to trace...');
-      this.statusDiv_.textContent = 'Tracing active.';
-
-      this.traceEvents_ = [];
-      if (!browserBridge.debugMode) {
-        chrome.send('beginTracing');
-        this.beginRequestBufferPercentFull_();
-      } else {
-        gpu.tracingControllerTestHarness.beginTracing();
-      }
-
-      this.tracingEnabled_ = true;
-
-      var e = new cr.Event('traceBegun');
-      e.events = this.traceEvents_;
-      this.dispatchEvent(e);
-
-      e = new cr.Event('traceEventsChanged');
-      e.numEvents = this.traceEvents_.length;
-      this.dispatchEvent(e);
-
-      window.addEventListener('keypress', this.onKeypressBoundToThis_);
-      window.addEventListener('keydown', this.onKeydownBoundToThis_);
-    },
-
-    onKeydown_: function(e) {
-      if (e.keyCode == 27) {
-        this.endTracing();
-      }
-    },
-
-    onKeypress_: function(e) {
-      if (e.keyIdentifier == 'Enter') {
-        this.endTracing();
-      }
-    },
-    /**
-     * Checks whether tracing is enabled
-     */
-    get isTracingEnabled() {
-      return this.tracingEnabled_;
-    },
-
-    /**
-     * Gets the currently traced events. If tracing is active, then
-     * this can change on the fly.
-     */
-    get traceEvents() {
-      return this.traceEvents_;
-    },
-
-    /**
-     * Callbed by gpu c++ code when new GPU trace data arrives.
-     */
-    onTraceDataCollected: function(events) {
-      this.statusDiv_.textContent = 'Processing trace...';
-      this.traceEvents_.push.apply(this.traceEvents_, events);
-    },
-
-    /**
-     * Called by info_view to finish tracing and update all views.
-     */
-    endTracing: function() {
-      if (!this.tracingEnabled_) throw new Error('Tracing not begun.');
-      if (this.tracingEnding_) return;
-      this.tracingEnding_ = true;
-
-      this.statusDiv_.textContent = 'Ending trace...';
-      console.log('Finishing trace');
-      this.statusDiv_.textContent = 'Downloading trace data...';
-      this.stopButton_.hidden = true;
-      // delay sending endTracingAsync until we get a chance to
-      // update the screen...
-      window.setTimeout(function() {
-        if (!browserBridge.debugMode) {
-          chrome.send('endTracingAsync');
-        } else {
-          gpu.tracingControllerTestHarness.endTracing();
-        }
-      }, 100);
-    },
-
-    /**
-     * Called by the browser when all processes complete tracing.
-     */
-    onEndTracingComplete: function() {
-      window.removeEventListener('keydown', this.onKeydownBoundToThis_);
-      window.removeEventListener('keypress', this.onKeypressBoundToThis_);
-      this.overlay_.visible = false;
-      this.tracingEnabled_ = false;
-      this.tracingEnding_ = false;
-      console.log('onEndTracingComplete p1 with ' +
-                  this.traceEvents_.length + ' events.');
-      var e = new cr.Event('traceEnded');
-      e.events = this.traceEvents_;
-      this.dispatchEvent(e);
-    },
-
-    /**
-     * Tells browser to put up a load dialog and load the trace file
-     */
-    beginLoadTraceFile: function() {
-      chrome.send('loadTraceFile');
-    },
-
-    /**
-     * Called by the browser when a trace file is loaded.
-     */
-    onLoadTraceFileComplete: function(data) {
-      if (data.traceEvents) {
-        this.traceEvents_ = data.traceEvents;
-      } else { // path for loading traces saved without metadata
-        if (!data.length)
-          console.log('Expected an array when loading the trace file');
-        else
-          this.traceEvents_ = data;
-      }
-      var e = new cr.Event('loadTraceFileComplete');
-      e.events = this.traceEvents_;
-      this.dispatchEvent(e);
-    },
-
-    /**
-     * Called by the browser when loading a trace file was canceled.
-     */
-    onLoadTraceFileCanceled: function() {
-      cr.dispatchSimpleEvent(this, 'loadTraceFileCanceled');
-    },
-
-    /**
-     * Tells browser to put up a save dialog and save the trace file
-     */
-    beginSaveTraceFile: function(traceEvents) {
-      var data = {
-        traceEvents: traceEvents,
-        clientInfo: browserBridge.clientInfo,
-        gpuInfo: browserBridge.gpuInfo
-      };
-      chrome.send('saveTraceFile', [JSON.stringify(data)]);
-    },
-
-    /**
-     * Called by the browser when a trace file is saveed.
-     */
-    onSaveTraceFileComplete: function() {
-      cr.dispatchSimpleEvent(this, 'saveTraceFileComplete');
-    },
-
-    /**
-     * Called by the browser when saving a trace file was canceled.
-     */
-    onSaveTraceFileCanceled: function() {
-      cr.dispatchSimpleEvent(this, 'saveTraceFileCanceled');
-    },
-
-    selfTest: function() {
-      this.beginTracing();
-      window.setTimeout(this.endTracing.bind(This), 500);
-    }
-  };
-  return {
-    TracingController: TracingController
-  };
-});
-