mojo/examples/sample_view_manager_app/sample_view_manager_app.cc

   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/at_exit.h"
   6 #include "base/bind.h"
   7 #include "base/command_line.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "mojo/public/cpp/application/application.h"
  10 #include "mojo/public/cpp/environment/environment.h"
  11 #include "mojo/public/cpp/system/core.h"
  12 #include "mojo/public/cpp/system/macros.h"
  13 #include "mojo/public/cpp/utility/run_loop.h"
  14 #include "mojo/services/public/cpp/view_manager/view.h"
  15 #include "mojo/services/public/cpp/view_manager/view_manager.h"
  16 #include "mojo/services/public/cpp/view_manager/view_tree_node.h"
  17 #include "ui/gfx/canvas.h"
  18
  19 #if defined(WIN32)
  20 #if !defined(CDECL)
  21 #define CDECL __cdecl
  22 #endif
  23 #define SAMPLE_APP_EXPORT __declspec(dllexport)
  24 #else
  25 #define CDECL
  26 #define SAMPLE_APP_EXPORT __attribute__((visibility("default")))
  27 #endif
  28
  29 namespace mojo {
  30 namespace examples {
  31
  32 class SampleApp : public Application {
  33  public:
  34   explicit SampleApp(MojoHandle service_provider_handle)
  35       : Application(service_provider_handle) {
  36     view_manager_.reset(new view_manager::ViewManager(service_provider()));
  37     view_manager_->Init();
  38     view_manager::ViewTreeNode* node1 =
  39         view_manager::ViewTreeNode::Create(view_manager_.get());
  40     view_manager::ViewTreeNode* node11 =
  41         view_manager::ViewTreeNode::Create(view_manager_.get());
  42     node11->SetBounds(gfx::Rect(800, 600));
  43
  44     view_manager::View* view11 =
  45         view_manager::View::Create(view_manager_.get());
  46     node11->SetActiveView(view11);
  47     view_manager_->tree()->AddChild(node1);
  48     node1->AddChild(node11);
  49
  50     gfx::Canvas canvas(gfx::Size(800, 600), 1.0f, true);
  51     canvas.DrawColor(SK_ColorRED);
  52     view11->SetContents(
  53         skia::GetTopDevice(*canvas.sk_canvas())->accessBitmap(true));
  54   }
  55
  56   virtual ~SampleApp() {
  57   }
  58
  59  private:
  60   // SampleApp creates a ViewManager and a trivial node hierarchy.
  61   scoped_ptr<view_manager::ViewManager> view_manager_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(SampleApp);
  64 };
  65
  66 }  // namespace examples
  67 }  // namespace mojo
  68
  69 extern "C" SAMPLE_APP_EXPORT MojoResult CDECL MojoMain(
  70     MojoHandle service_provider_handle) {
  71   base::MessageLoop loop;
  72
  73   mojo::examples::SampleApp app(service_provider_handle);
  74   loop.Run();
  75   return MOJO_RESULT_OK;
  76 }