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   ~DesktopNativeCursorManager() override;
  39
  40   // Builds a cursor and sets the internal platform representation. The return
  41   // value should not be cached.
  42   gfx::NativeCursor GetInitializedCursor(int type);
  43
  44   // Adds |host| to the set |hosts_|.
  45   void AddHost(aura::WindowTreeHost* host);
  46
  47   // Removes |host| from the set |hosts_|.
  48   void RemoveHost(aura::WindowTreeHost* host);
  49
  50  private:
  51   // Overridden from wm::NativeCursorManager:
  52   void SetDisplay(const gfx::Display& display,
  53                   wm::NativeCursorManagerDelegate* delegate) override;
  54   void SetCursor(gfx::NativeCursor cursor,
  55                  wm::NativeCursorManagerDelegate* delegate) override;
  56   void SetVisibility(bool visible,
  57                      wm::NativeCursorManagerDelegate* delegate) override;
  58   void SetCursorSet(ui::CursorSetType cursor_set,
  59                     wm::NativeCursorManagerDelegate* delegate) override;
  60   void SetMouseEventsEnabled(
  61       bool enabled,
  62       wm::NativeCursorManagerDelegate* delegate) override;
  63
  64   // The set of hosts to notify of changes in cursor state.
  65   typedef std::set<aura::WindowTreeHost*> Hosts;
  66   Hosts hosts_;
  67
  68   scoped_ptr<DesktopCursorLoaderUpdater> cursor_loader_updater_;
  69   scoped_ptr<ui::CursorLoader> cursor_loader_;
  70
  71   DISALLOW_COPY_AND_ASSIGN(DesktopNativeCursorManager);
  72 };
  73
  74 }  // namespace views
  75
  76 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_CURSOR_MANAGER_H_
  77