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Unified Diff: chrome/browser/resources/gpu_internals/tracing_controller.js

Issue 6551019: Trace_event upgrades (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: More gooder js thanks to arv. Created 9 years, 10 months ago
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Index: chrome/browser/resources/gpu_internals/tracing_controller.js
diff --git a/chrome/browser/resources/gpu_internals/tracing_controller.js b/chrome/browser/resources/gpu_internals/tracing_controller.js
new file mode 100644
index 0000000000000000000000000000000000000000..69a3b400ed6713d4b73f7347e83dd41929dacf23
--- /dev/null
+++ b/chrome/browser/resources/gpu_internals/tracing_controller.js
@@ -0,0 +1,123 @@
+// Copyright (c) 2010 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.
+cr.define('gpu', function() {
arv (Not doing code reviews) 2011/02/25 00:51:29 Can you add an empty line before this?
+ function TracingController() {
+ this.overlay_ = $('gpu-tracing-overlay-template').cloneNode(true);
+ this.overlay_.removeAttribute('id');
arv (Not doing code reviews) 2011/02/25 00:51:29 Prefer DOM properties where possible this.overlay
+ cr.ui.decorate(this.overlay_, gpu.Overlay);
+
+ this.traceEvents_ = [];
+
+ var startButton = $('gpu-tracing-start-button-template').cloneNode(true);
+ startButton.removeAttribute('id');
+ document.body.appendChild(startButton);
+ startButton.onclick = this.beginTracing.bind(this);
+
+ var stopButton = this.overlay_.querySelector('.gpu-tracing-stop-button');
+ stopButton.onclick = this.endTracing.bind(this);
+ }
+
+ TracingController.prototype = {
+ __proto__: cr.EventTarget.prototype,
+
+ tracingEnabled_ : false,
+
+ /**
+ * Called by info_view to empty the trace buffer
+ */
+ beginTracing: function() {
+ if (this.tracingEnabled_)
+ throw Error('Tracing already begun.');
+
+ this.overlay_.visible = true;
+
+ this.tracingEnabled_ = true;
+ console.log('Beginning to trace...');
+
+ this.traceEvents_ = [];
+ if (!browserBridge.debugMode)
+ chrome.send('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);
+
+ var self;
+ window.addEventListener('keypress', function f(e) {
+ if(e.keyIdentifier == 'Enter') {
arv (Not doing code reviews) 2011/02/25 00:51:29 ws
+ window.removeEventListener('keypress', f);
+ self.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.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.');
+
+ console.log('Finishing trace');
+ if (!browserBridge.debugMode) {
+ chrome.send('beginToEndTracing');
+ } else {
+ var events;
+ if(window.getTimelineTestData1){
arv (Not doing code reviews) 2011/02/25 00:51:29 ws
arv (Not doing code reviews) 2011/02/25 00:51:29 or events = window.getTimelineTestData1 ? getTime
+ events = getTimelineTestData1();
+ } else {
+ events = [];
+ }
+ this.onTraceDataCollected(events);
+ window.setTimeout(this.onEndTracingComplete.bind(this), 250);
+ }
+ },
+ /* Called by the browser when all processes ack tracing having completed. */
arv (Not doing code reviews) 2011/02/25 00:51:29 Use JSDoc
+ onEndTracingComplete: function() {
+ this.overlay_.visible = false;
+ this.tracingEnabled_ = false;
+ console.log('onEndTracingComplete p1 with ' +
+ this.traceEvents_.length + ' events.');
+ var e = new cr.Event('traceEnded');
+ e.events = this.traceEvents_;
+ this.dispatchEvent(e);
+ },
+
+ selfTest: function() {
+ this.beginTracing();
+ window.setTimeout(this.endTracing.bind(This), 500);
+ }
+ };
+ return {
+ TracingController : TracingController
+ };
+});
+

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