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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/basictypes.h"
      6 #include "base/bind.h"
      7 #include "base/message_loop/message_loop.h"
      8 #include "base/strings/stringprintf.h"
      9 #include "mojo/application/application_runner_chromium.h"
     10 #include "mojo/examples/window_manager/window_manager.mojom.h"
     11 #include "mojo/public/c/system/main.h"
     12 #include "mojo/public/cpp/application/application_connection.h"
     13 #include "mojo/public/cpp/application/application_delegate.h"
     14 #include "mojo/public/cpp/application/application_impl.h"
     15 #include "mojo/public/cpp/application/interface_factory_impl.h"
     16 #include "mojo/services/public/cpp/view_manager/view.h"
     17 #include "mojo/services/public/cpp/view_manager/view_manager.h"
     18 #include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
     19 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
     20 #include "mojo/services/public/cpp/view_manager/view_observer.h"
     21 #include "ui/events/event_constants.h"
     22 #include "url/gurl.h"
     23 
     24 namespace mojo {
     25 namespace examples {
     26 
     27 namespace {
     28 const char kEmbeddedAppURL[] = "mojo:mojo_embedded_app";
     29 }
     30 
     31 class NestingApp;
     32 
     33 // An app that embeds another app.
     34 // TODO(davemoore): Is this the right name?
     35 class NestingApp
     36     : public ApplicationDelegate,
     37       public ViewManagerDelegate,
     38       public ViewObserver {
     39  public:
     40   NestingApp() : nested_(NULL) {}
     41   virtual ~NestingApp() {}
     42 
     43  private:
     44   // Overridden from ApplicationDelegate:
     45   virtual void Initialize(ApplicationImpl* app) MOJO_OVERRIDE {
     46     view_manager_client_factory_.reset(
     47         new ViewManagerClientFactory(app->shell(), this));
     48   }
     49 
     50   // Overridden from ApplicationImpl:
     51   virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
     52       MOJO_OVERRIDE {
     53     connection->ConnectToService(&window_manager_);
     54     connection->AddService(view_manager_client_factory_.get());
     55     return true;
     56   }
     57 
     58   // Overridden from ViewManagerDelegate:
     59   virtual void OnEmbed(ViewManager* view_manager,
     60                        View* root,
     61                        ServiceProviderImpl* exported_services,
     62                        scoped_ptr<ServiceProvider> imported_services) OVERRIDE {
     63     root->AddObserver(this);
     64     root->SetColor(SK_ColorCYAN);
     65 
     66     nested_ = View::Create(view_manager);
     67     root->AddChild(nested_);
     68     nested_->SetBounds(gfx::Rect(20, 20, 50, 50));
     69     nested_->Embed(kEmbeddedAppURL);
     70   }
     71   virtual void OnViewManagerDisconnected(ViewManager* view_manager) OVERRIDE {
     72     base::MessageLoop::current()->Quit();
     73   }
     74 
     75   // Overridden from ViewObserver:
     76   virtual void OnViewDestroyed(View* view) OVERRIDE {
     77     // TODO(beng): reap views & child Views.
     78     nested_ = NULL;
     79   }
     80   virtual void OnViewInputEvent(View* view, const EventPtr& event) OVERRIDE {
     81     if (event->action == EVENT_TYPE_MOUSE_RELEASED)
     82       window_manager_->CloseWindow(view->id());
     83   }
     84 
     85   scoped_ptr<ViewManagerClientFactory> view_manager_client_factory_;
     86 
     87   View* nested_;
     88   IWindowManagerPtr window_manager_;
     89 
     90   DISALLOW_COPY_AND_ASSIGN(NestingApp);
     91 };
     92 
     93 }  // namespace examples
     94 }  // namespace mojo
     95 
     96 MojoResult MojoMain(MojoHandle shell_handle) {
     97   mojo::ApplicationRunnerChromium runner(new mojo::examples::NestingApp);
     98   return runner.Run(shell_handle);
     99 }
    100