Full-screen Magnifier: Support warping the cursor on the edge

ui/aura/root_window.h

Index: ui/aura/root_window.h
diff --git a/ui/aura/root_window.h b/ui/aura/root_window.h
index 708fa6cefbfee9b5889dec3e30397806b0f97e5f..61eb8455d89eb2bb6a4e41ba8f4d719eb048e129 100644
--- a/ui/aura/root_window.h
+++ b/ui/aura/root_window.h
@@ -96,6 +96,7 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
   Window* mouse_pressed_handler() { return mouse_pressed_handler_; }
   Window* capture_window() { return capture_window_; }
   Window* focused_window() { return focused_window_; }
+  ui::Layer* magnification_layer() { return magnification_layer_.get(); }
 
   // Initializes the root window.
   void Init();
@@ -119,6 +120,10 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
   // used.
   void SetCursor(gfx::NativeCursor cursor);
 
+  void SetForceHideCursor(bool hide) {

[sky, 2012/05/16 15:40:48]

Add description

[yoshiki, 2012/05/17 17:19:32]

Done.

+    force_hide_cursor_ = hide;

[sky, 2012/05/16 15:40:48]

SHouldn't this update the cursor immediately if the value is changing?

[yoshiki, 2012/05/17 17:19:32]

Done.

+  }
+
   // Shows or hides the cursor.
   void ShowCursor(bool show);
 
@@ -349,6 +354,8 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
 
   scoped_ptr<RootWindowHost> host_;
 
+  scoped_ptr<ui::Layer> magnification_layer_;

[sky, 2012/05/16 15:40:48]

Add description.

[yoshiki, 2012/05/17 17:19:32]

Done.

+
   // If set before the RootWindow is created, the cursor will be drawn within
   // the Aura root window but hidden outside of it, and it'll remain hidden
   // after the Aura window is closed.
@@ -399,6 +406,8 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
   bool should_hold_mouse_moves_;
   scoped_ptr<MouseEvent> held_mouse_move_;
 
+  bool force_hide_cursor_;
+
   CompositorLock* compositor_lock_;
   bool draw_on_compositor_unlock_;