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 LocatedEvent;
  23 }
  24
  25 namespace ash {
  26 struct AshWindowTreeHostInitParams;
  27 class RootWindowTransformer;
  28
  29 class ASH_EXPORT AshWindowTreeHost {
  30  public:
  31   virtual ~AshWindowTreeHost() {}
  32
  33   // Creates a new AshWindowTreeHost. The caller owns the returned value.
  34   static AshWindowTreeHost* Create(
  35       const AshWindowTreeHostInitParams& init_params);
  36
  37   // Toggles the host's full screen state.
  38   virtual void ToggleFullScreen() = 0;
  39
  40   // Clips the cursor to the bounds of the root window until UnConfineCursor().
  41   // We would like to be able to confine the cursor to that window. However,
  42   // currently, we do not have such functionality in X. So we just confine
  43   // to the root window. This is ok because this option is currently only
  44   // being used in fullscreen mode, so root_window bounds = window bounds.
  45   virtual bool ConfineCursorToRootWindow() = 0;
  46   virtual void UnConfineCursor() = 0;
  47
  48   virtual void SetRootWindowTransformer(
  49       scoped_ptr<RootWindowTransformer> transformer) = 0;
  50
  51   virtual gfx::Insets GetHostInsets() const = 0;
  52
  53   virtual aura::WindowTreeHost* AsWindowTreeHost() = 0;
  54
  55   // Updates the display IDs associated with this root window.
  56   // A root window can be associated with up to 2 display IDs (e.g. in mirror
  57   // mode dual monitors case). If the root window is only associated with one
  58   // display id, then the other id should be set to
  59   // gfx::Display::kInvalidDisplayID.
  60   virtual void UpdateDisplayID(int64 id1, int64 id2) {}
  61
  62   // Stop listening for events in preparation for shutdown.
  63   virtual void PrepareForShutdown() {}
  64
  65  protected:
  66   // Translates the native mouse location into screen coordinates.
  67   void TranslateLocatedEvent(ui::LocatedEvent* event);
  68 };
  69
  70 }  // namespace ash
  71
  72 #endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_H_