ui/views/widget/desktop_aura/desktop_native_cursor_manager.h

   1 // Copyright (c) 2012 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 UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_CURSOR_MANAGER_H_
   6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_CURSOR_MANAGER_H_
   7
   8 #include <set>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/views/views_export.h"
  13 #include "ui/wm/core/native_cursor_manager.h"
  14
  15 namespace aura {
  16 class WindowTreeHost;
  17 }
  18
  19 namespace ui {
  20 class CursorLoader;
  21 }
  22
  23 namespace wm {
  24 class NativeCursorManagerDelegate;
  25 }
  26
  27 namespace views {
  28 class DesktopCursorLoaderUpdater;
  29
  30 // A NativeCursorManager that performs the desktop-specific setting of cursor
  31 // state. Similar to AshNativeCursorManager, it also communicates these changes
  32 // to all root windows.
  33 class VIEWS_EXPORT DesktopNativeCursorManager
  34     : public wm::NativeCursorManager {
  35  public:
  36   DesktopNativeCursorManager(
  37       scoped_ptr<DesktopCursorLoaderUpdater> cursor_loader_updater);
  38   virtual ~DesktopNativeCursorManager();
  39
  40   // Builds a cursor and sets the internal platform representation.
  41   gfx::NativeCursor GetInitializedCursor(int type);
  42
  43   // Adds |host| to the set |hosts_|.
  44   void AddHost(aura::WindowTreeHost* host);
  45
  46   // Removes |host| from the set |hosts_|.
  47   void RemoveHost(aura::WindowTreeHost* host);
  48
  49  private:
  50   // Overridden from wm::NativeCursorManager:
  51   virtual void SetDisplay(
  52       const gfx::Display& display,
  53       wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
  54   virtual void SetCursor(
  55       gfx::NativeCursor cursor,
  56       wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
  57   virtual void SetVisibility(
  58       bool visible,
  59       wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
  60   virtual void SetCursorSet(
  61       ui::CursorSetType cursor_set,
  62       wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
  63   virtual void SetMouseEventsEnabled(
  64       bool enabled,
  65       wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
  66
  67   // The set of hosts to notify of changes in cursor state.
  68   typedef std::set<aura::WindowTreeHost*> Hosts;
  69   Hosts hosts_;
  70
  71   scoped_ptr<DesktopCursorLoaderUpdater> cursor_loader_updater_;
  72   scoped_ptr<ui::CursorLoader> cursor_loader_;
  73
  74   DISALLOW_COPY_AND_ASSIGN(DesktopNativeCursorManager);
  75 };
  76
  77 }  // namespace views
  78
  79 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_CURSOR_MANAGER_H_
  80