Make the cursor have separate mode for disabled mouse events and invisible.

ui/aura/root_window.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/aura/root_window.h"
 
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 50 matching lines @@
 float GetDeviceScaleFactorFromDisplay(Window* window) {
   return gfx::Screen::GetScreenFor(window)->
       GetDisplayNearestWindow(window).device_scale_factor();
 }
 
 Window* ConsumerToWindow(ui::GestureConsumer* consumer) {
   return consumer && !consumer->ignores_events() ?
       static_cast<Window*>(consumer) : NULL;
 }
 
-void SetLastMouseLocation(const Window* root_window,
-                          const gfx::Point& location) {
-  Env::GetInstance()->SetLastMouseLocation(*root_window, location);
+void SetLastMouseLocation(const RootWindow* root_window,
+                          const gfx::Point& location_in_root) {
+  client::ScreenPositionClient* client =
+      client::GetScreenPositionClient(root_window);
+  if (client) {
+    gfx::Point location_in_screen = location_in_root;
+    client->ConvertPointToScreen(root_window, &location_in_screen);
+    Env::GetInstance()->set_last_mouse_location(location_in_screen);
+  } else {
+    Env::GetInstance()->set_last_mouse_location(location_in_root);
+  }
 }
 
 RootWindowHost* CreateHost(RootWindow* root_window,
                            const RootWindow::CreateParams& params) {
   RootWindowHost* host = params.host ?
       params.host : RootWindowHost::Create(params.initial_bounds);
   host->SetDelegate(root_window);
   return host;
 }
 
@@ skipping 87 matching lines @@
 }
 
 void RootWindow::SetHostSize(const gfx::Size& size_in_pixel) {
   DispatchHeldMouseMove();
   gfx::Rect bounds = host_->GetBounds();
   bounds.set_size(size_in_pixel);
   host_->SetBounds(bounds);
 
   // Requery the location to constrain it within the new root window size.
   gfx::Point point;
   if (host_->QueryMouseLocation(&point))

[oshima, 2012/12/06 18:55:46]

I think QueryMouseLocation needs to fail if the mouse is disabled

[mazda, 2012/12/07 20:50:51]

Done.
In order to get the cursor enabled state in RootWindowHost, I added
IsCursorEnabled to CursorClient.

     SetLastMouseLocation(this, ui::ConvertPointToDIP(layer(), point));
 
   synthesize_mouse_move_ = false;
 }
 
 gfx::Size RootWindow::GetHostSize() const {
   return host_->GetBounds().size();
 }
 
 void RootWindow::SetHostBounds(const gfx::Rect& bounds_in_pixel) {
   DispatchHeldMouseMove();
   host_->SetBounds(bounds_in_pixel);
   synthesize_mouse_move_ = false;
 }
 
 gfx::Point RootWindow::GetHostOrigin() const {
   return host_->GetBounds().origin();
 }
 
 void RootWindow::SetCursor(gfx::NativeCursor cursor) {
   last_cursor_ = cursor;
   // A lot of code seems to depend on NULL cursors actually showing an arrow,
   // so just pass everything along to the host.
   host_->SetCursor(cursor);
 }
 
-void RootWindow::OnCursorVisibilityChanged(bool show) {
+void RootWindow::OnCursorEnableStateChanged(bool enabled) {
   // Send entered / exited so that visual state can be updated to match
   // cursor state.
-  Env::GetInstance()->SetCursorShown(show);
   PostMouseMoveEventAfterWindowChange();
 }
 
 void RootWindow::MoveCursorTo(const gfx::Point& location_in_dip) {
   gfx::Point location = location_in_dip;
   layer()->transform().TransformPoint(location);
   host_->MoveCursorTo(ui::ConvertPointToPixel(layer(), location));
   SetLastMouseLocation(this, location_in_dip);
   client::CursorClient* cursor_client = client::GetCursorClient(this);
   if (cursor_client)
@@ skipping 816 matching lines @@
   ui::MouseEvent event(ui::ET_MOUSE_MOVED,
                        orig_mouse_location,
                        orig_mouse_location,
                        ui::EF_IS_SYNTHESIZED);
   event.set_system_location(Env::GetInstance()->last_mouse_location());
   OnHostMouseEvent(&event);
 #endif
 }
 
 }  // namespace aura