Pass ServiceProvider thru ViewManagerService::Embed() allowing embedder & embeddee to expose servic…

mojo/examples/wm_flow/wm/wm.cc

 // Copyright 2014 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 "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/application/exported_service_registry.h"
 #include "mojo/services/public/cpp/view_manager/view_manager.h"
 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
 #include "mojo/services/public/cpp/view_manager/window_manager_delegate.h"
 #include "mojo/services/window_manager/window_manager_app.h"
 
 namespace examples {
 
 class SimpleWM : public mojo::ApplicationDelegate,
                  public mojo::ViewManagerDelegate,
                  public mojo::WindowManagerDelegate {
@@ skipping 11 matching lines @@
   virtual void Initialize(mojo::ApplicationImpl* impl) MOJO_OVERRIDE {
     window_manager_app_->Initialize(impl);
   }
   virtual bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) MOJO_OVERRIDE {
     window_manager_app_->ConfigureIncomingConnection(connection);
     return true;
   }
 
   // Overridden from mojo::ViewManagerDelegate:
-  virtual void OnEmbed(mojo::ViewManager* view_manager,
-                       mojo::Node* root) MOJO_OVERRIDE {
+  virtual void OnEmbed(
+      mojo::ViewManager* view_manager,
+      mojo::Node* root,
+      mojo::ExportedServiceRegistry* exported_services,
+      scoped_ptr<mojo::ServiceProvider> remote_service_provider) MOJO_OVERRIDE {
     view_manager_ = view_manager;
     root_ = root;
     view_manager_->SetWindowManagerDelegate(this);
 
     window_container_ = mojo::Node::Create(view_manager_);
     window_container_->SetBounds(root_->bounds());
     root_->AddChild(window_container_);
 
   }
   virtual void OnViewManagerDisconnected(
       mojo::ViewManager* view_manager) MOJO_OVERRIDE {
     view_manager_ = NULL;
     root_ = NULL;
   }
 
   // Overridden from mojo::WindowManagerDelegate:
-  virtual void Embed(const mojo::String& url) MOJO_OVERRIDE {
+  virtual void Embed(
+      const mojo::String& url,
+      mojo::InterfaceRequest<mojo::ServiceProvider> service_provider)
+          MOJO_OVERRIDE {
     mojo::Node* embed_node =
         mojo::Node::Create(view_manager_);
     embed_node->SetBounds(gfx::Rect(next_window_origin_, gfx::Size(400, 400)));
     window_container_->AddChild(embed_node);
-    embed_node->Embed(url);
+
+    // TODO(beng): We're dropping the |service_provider| passed from the client
+    //             on the floor here and passing our own. Seems like we should
+    //             be sending both. I'm not yet sure how this sould work for
+    //             N levels of proxying.
+    embed_node->Embed(url, scoped_ptr<mojo::ExportedServiceRegistry>(
+        new mojo::ExportedServiceRegistry).Pass());
     next_window_origin_.Offset(50, 50);
   }
   virtual void DispatchEvent(mojo::View* target,
                              mojo::EventPtr event) MOJO_OVERRIDE {
     view_manager_->DispatchEvent(target, event.Pass());
   }
 
   scoped_ptr<mojo::WindowManagerApp> window_manager_app_;
 
   mojo::ViewManager* view_manager_;
   mojo::Node* root_;
   mojo::Node* window_container_;
 
   gfx::Point next_window_origin_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleWM);
 };
 
 }  // namespace examples
 
 namespace mojo {
 
 // static
 ApplicationDelegate* ApplicationDelegate::Create() {
   return new examples::SimpleWM;
 }
 
 }  // namespace