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      1 // Copyright (c) 2013 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_CURSOR_LOADER_UPDATER_H_
      6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_CURSOR_LOADER_UPDATER_H_
      7 
      8 namespace aura {
      9 class RootWindow;
     10 }
     11 
     12 namespace gfx {
     13 class Display;
     14 }
     15 
     16 namespace ui {
     17 class CursorLoader;
     18 }
     19 
     20 namespace views {
     21 
     22 // An interface to optionally update the state of a cursor loader. Only used on
     23 // desktop AuraX11.
     24 class DesktopCursorLoaderUpdater {
     25  public:
     26   virtual ~DesktopCursorLoaderUpdater() {}
     27 
     28   // Called when a CursorLoader is created.
     29   virtual void OnCreate(aura::RootWindow* window,
     30                         ui::CursorLoader* loader) = 0;
     31 
     32   // Called when the display has changed (as we may need to reload the cursor
     33   // assets in response to a device scale factor or rotation change).
     34   virtual void OnDisplayUpdated(const gfx::Display& display,
     35                                 ui::CursorLoader* loader) = 0;
     36 };
     37 
     38 }  // namespace views
     39 
     40 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DISPLAY_CHANGE_HANDLER_H_
     41