Timeline addTraceProvider API

third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js

Index: third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js
diff --git a/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js b/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js
index 7a9b305fbc76abcc0829e3ba5893acbb4068899f..41a8d6e8dfdc77c2244c31ca014a60199f4ab6cf 100644
--- a/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js
+++ b/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionAPI.js
@@ -51,6 +51,8 @@ function defineCommonExtensionSymbols(apiPrivate)
 
     apiPrivate.Events = {
         AuditStarted: "audit-started-",
+        RecordingStarted: "trace-recording-started-",
+        RecordingStopped: "trace-recording-stopped-",
         ButtonClicked: "button-clicked-",
         PanelObjectSelected: "panel-objectSelected-",
         NetworkRequestFinished: "network-request-finished",
@@ -66,6 +68,8 @@ function defineCommonExtensionSymbols(apiPrivate)
         AddAuditCategory: "addAuditCategory",
         AddAuditResult: "addAuditResult",
         AddRequestHeaders: "addRequestHeaders",
+        AddTraceProvider: "addTraceProvider",
+        AddTraceData: "addTraceData",
         ApplyStyleSheet: "applyStyleSheet",
         CreatePanel: "createPanel",
         CreateSidebarPane: "createSidebarPane",
@@ -174,6 +178,7 @@ EventSinkImpl.prototype = {
 function InspectorExtensionAPI()
 {
     this.audits = new Audits();
+    this.timeline = new Timeline();
     this.inspectedWindow = new InspectedWindow();
     this.panels = new Panels();
     this.network = new Network();
@@ -411,6 +416,7 @@ function extractCallbackArgument(args)
 
 var AuditCategory = declareInterfaceClass(AuditCategoryImpl);
 var AuditResult = declareInterfaceClass(AuditResultImpl);
+var TraceData = declareInterfaceClass(TraceDataImpl);
 var Button = declareInterfaceClass(ButtonImpl);
 var EventSink = declareInterfaceClass(EventSinkImpl);
 var ExtensionPanel = declareInterfaceClass(ExtensionPanelImpl);
@@ -553,6 +559,71 @@ ButtonImpl.prototype = {
 /**
  * @constructor
  */
+function Timeline()
+{
+}
+
+Timeline.prototype = {
+    /**
+     * @param {string} categoryName
+     * @param {string} categoryTooltip
+     * @return {!TraceProvider}
+     */
+    addTraceProvider: function(categoryName, categoryTooltip)
+    {
+        var id = "extension-timeline-category-" + extensionServer.nextObjectId();
+        extensionServer.sendRequest({ command: commands.AddTraceProvider, id: id, categoryName: categoryName, categoryTooltip: categoryTooltip});
+        return new TraceProvider(id);
+    }
+}
+
+/**
+ * @constructor
+ */
+function TraceProvider(id)
+{
+    /**
+     * @this {EventSinkImpl}
+     */
+    function dispatchRecordingStoppedEvent(request)
+    {
+        var traceData = new TraceData(request.arguments[0], id);
+        try {
+            this._fire(traceData);
+        } catch (e) {
+            console.error("Uncaught exception in extension recording stopped event handler: " + e);
+        }
+    }
+    this.onRecordingStarted = new EventSink(events.RecordingStarted + id);
+    this.onRecordingStopped = new EventSink(events.RecordingStopped + id, dispatchRecordingStoppedEvent);
+}
+
+/**
+ * @constructor
+ */
+function TraceDataImpl(id, traceProviderId)
+{
+    this._id = id;
+    this._traceProviderId = traceProviderId;
+}
+
+TraceDataImpl.prototype = {
+    addTraceData: function(threadName, events)
+    {
+        var request = {
+            command: commands.AddTraceData,
+            dataId: this._id,
+            threadName: threadName,
+            events: events,
+            traceProviderId: this._traceProviderId,
+        };
+        extensionServer.sendRequest(request);
+    }
+}
+
+/**
+ * @constructor
+ */
 function Audits()
 {
 }