ash/host/ash_window_tree_host.h

   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 #ifndef ASH_HOST_ASH_WINDOW_TREE_HOST_H_
   6 #define ASH_HOST_ASH_WINDOW_TREE_HOST_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "base/memory/scoped_ptr.h"
  10
  11 namespace aura {
  12 class Window;
  13 class WindowTreeHost;
  14 }
  15
  16 namespace gfx {
  17 class Insets;
  18 class Rect;
  19 }
  20
  21 namespace ui {
  22 class EventSource;
  23 class KeyEvent;
  24 class LocatedEvent;
  25 }
  26
  27 namespace ash {
  28 struct AshWindowTreeHostInitParams;
  29 class InputMethodEventHandler;
  30 class RootWindowTransformer;
  31
  32 class ASH_EXPORT AshWindowTreeHost {
  33  public:
  34   AshWindowTreeHost();
  35   virtual ~AshWindowTreeHost() {}
  36
  37   // Creates a new AshWindowTreeHost. The caller owns the returned value.
  38   static AshWindowTreeHost* Create(
  39       const AshWindowTreeHostInitParams& init_params);
  40
  41   void set_input_method_handler(InputMethodEventHandler* input_method_handler) {
  42     input_method_handler_ = input_method_handler;
  43   }
  44
  45   InputMethodEventHandler* input_method_handler() {
  46     return input_method_handler_;
  47   }
  48
  49   // Toggles the host's full screen state.
  50   virtual void ToggleFullScreen() = 0;
  51
  52   // Clips the cursor to the bounds of the root window until UnConfineCursor().
  53   // We would like to be able to confine the cursor to that window. However,
  54   // currently, we do not have such functionality in X. So we just confine
  55   // to the root window. This is ok because this option is currently only
  56   // being used in fullscreen mode, so root_window bounds = window bounds.
  57   virtual bool ConfineCursorToRootWindow() = 0;
  58   virtual void UnConfineCursor() = 0;
  59
  60   virtual void SetRootWindowTransformer(
  61       scoped_ptr<RootWindowTransformer> transformer) = 0;
  62
  63   virtual gfx::Insets GetHostInsets() const = 0;
  64
  65   virtual aura::WindowTreeHost* AsWindowTreeHost() = 0;
  66
  67   // Stop listening for events in preparation for shutdown.
  68   virtual void PrepareForShutdown() {}
  69
  70   virtual void RegisterMirroringHost(AshWindowTreeHost* mirroring_ash_host) {}
  71
  72  protected:
  73   // Translates the native mouse location into screen coordinates.
  74   void TranslateLocatedEvent(ui::LocatedEvent* event);
  75
  76  private:
  77   InputMethodEventHandler* input_method_handler_;
  78 };
  79
  80 }  // namespace ash
  81
  82 #endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_H_