HTML titlebars for v2 apps.

chrome/renderer/extensions/app_window_custom_bindings.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/renderer/extensions/app_window_custom_bindings.h"
 
 #include <string>
 
-#include "base/string_util.h"
-#include "chrome/common/extensions/extension_action.h"
 #include "chrome/common/extensions/extension_messages.h"
-#include "chrome/common/url_constants.h"
+#include "chrome/renderer/extensions/chrome_v8_context.h"
 #include "chrome/renderer/extensions/dispatcher.h"
-#include "chrome/renderer/extensions/extension_helper.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
-#include "grit/renderer_resources.h"
+#include "content/public/renderer/render_view_observer.h"
+#include "content/public/renderer/render_view_visitor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebNavigationPolicy.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebWindowFeatures.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURLRequest.h"
 #include "v8/include/v8.h"
-#include "webkit/glue/webkit_glue.h"
-
-#include "content/public/renderer/render_view.h"
-#include "content/public/renderer/render_view_visitor.h"
 
 namespace extensions {
 
+class DidCreateDocumentElementObserver : public content::RenderViewObserver {
+ public:
+  DidCreateDocumentElementObserver(
+      content::RenderView* view, Dispatcher* dispatcher)
+      : content::RenderViewObserver(view), dispatcher_(dispatcher) {
+  }
+
+  virtual void DidCreateDocumentElement(WebKit::WebFrame* frame) OVERRIDE {
+    v8::HandleScope handle_scope;
+    DCHECK(frame);
+    DCHECK(dispatcher_);
+    ChromeV8Context* v8_context =
+        dispatcher_->v8_context_set().GetByV8Context(
+            frame->mainWorldScriptContext());
+
+    if (!v8_context)
+      return;
+    v8::Context::Scope context_scope(v8_context->v8_context());
+    v8_context->module_system()->CallModuleMethod(
+        "injectAppTitlebar", "didCreateDocumentElement");
+  }
+
+ private:
+  Dispatcher* dispatcher_;
+};
+
 AppWindowCustomBindings::AppWindowCustomBindings(Dispatcher* dispatcher)
     : ChromeV8Extension(dispatcher) {
-  RouteStaticFunction("GetView", &GetView);
+  RouteFunction("GetView",
+      base::Bind(&AppWindowCustomBindings::GetView,
+                 base::Unretained(this)));
 }
 
 namespace {
 class FindViewByID : public content::RenderViewVisitor {
  public:
   explicit FindViewByID(int route_id) : route_id_(route_id), view_(NULL) {
   }
 
   content::RenderView* view() { return view_; }
 
   // Returns false to terminate the iteration.
   virtual bool Visit(content::RenderView* render_view) {
     if (render_view->GetRoutingID() == route_id_) {
       view_ = render_view;
       return false;
     }
     return true;
   }
 
  private:
   int route_id_;
   content::RenderView* view_;
 };
 }  // namespace
 
 v8::Handle<v8::Value> AppWindowCustomBindings::GetView(
     const v8::Arguments& args) {
   // TODO(jeremya): convert this to IDL nocompile to get validation, and turn
   // these argument checks into CHECK().
-  if (args.Length() != 1)
+  if (args.Length() != 2)
     return v8::Undefined();
 
   if (!args[0]->IsInt32())
     return v8::Undefined();
 
+  if (!args[1]->IsBoolean())
+    return v8::Undefined();
+
   int view_id = args[0]->Int32Value();
 
+  bool inject_titlebar = args[1]->BooleanValue();
+
   if (view_id == MSG_ROUTING_NONE)
     return v8::Undefined();
 
   // TODO(jeremya): there exists a direct map of routing_id -> RenderView as
   // ChildThread::current()->ResolveRoute(), but ResolveRoute returns an
   // IPC::Listener*, which RenderView doesn't inherit from (RenderViewImpl
   // does, indirectly, via RenderWidget, but the link isn't exposed outside of
   // content/.)
   FindViewByID view_finder(view_id);
   content::RenderView::ForEach(&view_finder);
   content::RenderView* view = view_finder.view();
   if (!view)
     return v8::Undefined();
 
+  if (inject_titlebar)
+    new DidCreateDocumentElementObserver(view, dispatcher());
+
   // TODO(jeremya): it doesn't really make sense to set the opener here, but we
   // need to make sure the security origin is set up before returning the DOM
   // reference. A better way to do this would be to have the browser pass the
   // opener through so opener_id is set in RenderViewImpl's constructor.
   content::RenderView* render_view = GetCurrentRenderView();
   if (!render_view)
     return v8::Undefined();
   WebKit::WebFrame* opener = render_view->GetWebView()->mainFrame();
   WebKit::WebFrame* frame = view->GetWebView()->mainFrame();
   frame->setOpener(opener);
   content::RenderThread::Get()->Send(
       new ExtensionHostMsg_ResumeRequests(view->GetRoutingID()));
 
   v8::Local<v8::Value> window = frame->mainWorldScriptContext()->Global();
   return window;
 }
 
 }  // namespace extensions