components/view_manager/view_manager_root_impl.h

   1 // Copyright 2015 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 #ifndef COMPONENTS_VIEW_MANAGER_VIEW_MANAGER_ROOT_IMPL_H_
   6 #define COMPONENTS_VIEW_MANAGER_VIEW_MANAGER_ROOT_IMPL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "components/view_manager/display_manager.h"
  10 #include "components/view_manager/public/cpp/types.h"
  11 #include "components/view_manager/public/interfaces/view_manager_root.mojom.h"
  12 #include "components/view_manager/server_view.h"
  13
  14 namespace cc {
  15 class SurfaceManager;
  16 }
  17
  18 namespace surfaces {
  19 class SurfacesScheduler;
  20 }
  21
  22 namespace view_manager {
  23
  24 class ConnectionManager;
  25 class ViewManagerRootDelegate;
  26 class ViewManagerServiceImpl;
  27
  28 // ViewManagerRootImpl is an implementation of the ViewManagerRoot interface.
  29 // It serves as a top level root view for a window. Its lifetime is managed by
  30 // ConnectionManager. If the connection to the client breaks or if the user
  31 // closes the associated window, then this object and related state will be
  32 // deleted.
  33 class ViewManagerRootImpl : public DisplayManagerDelegate,
  34                             public mojo::ViewManagerRoot {
  35  public:
  36   // TODO(fsamuel): All these parameters are just plumbing for creating
  37   // DisplayManagers. We should probably just store these common parameters
  38   // in the DisplayManagerFactory and pass them along on DisplayManager::Create.
  39   ViewManagerRootImpl(
  40       ConnectionManager* connection_manager,
  41       bool is_headless,
  42       mojo::ApplicationImpl* app_impl,
  43       const scoped_refptr<gles2::GpuState>& gpu_state,
  44       const scoped_refptr<surfaces::SurfacesState>& surfaces_state);
  45   ~ViewManagerRootImpl() override;
  46
  47   // Initializes state that depends on the existence of a ViewManagerRootImpl.
  48   void Init(ViewManagerRootDelegate* delegate);
  49
  50   ViewManagerServiceImpl* GetViewManagerService();
  51
  52   mojo::ViewManagerRootClient* client() const { return client_.get(); }
  53
  54   // Returns whether |view| is a descendant of this root but not itself a
  55   // root view.
  56   bool IsViewAttachedToRoot(const ServerView* view) const;
  57
  58   // Schedules a paint for the specified region in the coordinates of |view| if
  59   // the |view| is in this viewport. Returns whether |view| is in the viewport.
  60   bool SchedulePaintIfInViewport(const ServerView* view,
  61                                  const gfx::Rect& bounds);
  62
  63   // Returns the metrics for this viewport.
  64   const mojo::ViewportMetrics& GetViewportMetrics() const;
  65
  66   ConnectionManager* connection_manager() { return connection_manager_; }
  67
  68   // Returns the root ServerView of this viewport.
  69   ServerView* root_view() { return root_.get(); }
  70
  71   void UpdateTextInputState(const ui::TextInputState& state);
  72   void SetImeVisibility(bool visible);
  73
  74   // ViewManagerRoot:
  75   void SetViewManagerRootClient(mojo::ViewManagerRootClientPtr client) override;
  76   void SetViewportSize(mojo::SizePtr size) override;
  77   void CloneAndAnimate(mojo::Id transport_view_id) override;
  78   void AddAccelerator(mojo::KeyboardCode keyboard_code,
  79                       mojo::EventFlags flags) override;
  80   void RemoveAccelerator(mojo::KeyboardCode keyboard_code,
  81                          mojo::EventFlags flags) override;
  82
  83  private:
  84   // DisplayManagerDelegate:
  85   ServerView* GetRootView() override;
  86   void OnEvent(mojo::EventPtr event) override;
  87   void OnDisplayClosed() override;
  88   void OnViewportMetricsChanged(
  89       const mojo::ViewportMetrics& old_metrics,
  90       const mojo::ViewportMetrics& new_metrics) override;
  91
  92   ViewManagerRootDelegate* delegate_;
  93   ConnectionManager* const connection_manager_;
  94   mojo::ViewManagerRootClientPtr client_;
  95   scoped_ptr<ServerView> root_;
  96   scoped_ptr<DisplayManager> display_manager_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(ViewManagerRootImpl);
  99 };
 100
 101 }  // namespace view_manager
 102
 103 #endif  // COMPONENTS_VIEW_MANAGER_VIEW_MANAGER_ROOT_IMPL_H_