Disable the stop button when the user is hovering it and the page finishes lo...

views/widget/root_view.cc

 // Copyright (c) 2010 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 "views/widget/root_view.h"
 
 #include <algorithm>
 
 #include "app/drag_drop_types.h"
 #include "base/keyboard_codes.h"
@@ skipping 437 matching lines @@
     View* mouse_pressed_handler = mouse_pressed_handler_;
     mouse_pressed_handler_ = NULL;
     explicit_mouse_handler_ = false;
     mouse_pressed_handler->ProcessMouseReleased(mouse_released, canceled);
     // WARNING: we may have been deleted.
   }
 }
 
 void RootView::OnMouseMoved(const MouseEvent& e) {
   View* v = GetViewForPoint(e.location());
-  // Find the first enabled view.
-  while (v && !v->IsEnabled())
+  // Find the first enabled view, or the existing move handler, whichever comes
+  // first.  The check for the existing handler is because if a view becomes
+  // disabled while handling moves, it's wrong to suddenly send ET_MOUSE_EXITED
+  // and ET_MOUSE_ENTERED events, because the mouse hasn't actually exited yet.
+  while (v && !v->IsEnabled() && (v != mouse_move_handler_))
     v = v->GetParent();
   if (v && v != this) {
     if (v != mouse_move_handler_) {
       if (mouse_move_handler_ != NULL) {
         MouseEvent exited_event(Event::ET_MOUSE_EXITED, 0, 0, 0);
         mouse_move_handler_->OnMouseExited(exited_event);
       }
 
       mouse_move_handler_ = v;
 
@@ skipping 237 matching lines @@
       static_cast<WidgetGtk*>(GetWidget())->window_contents();
   if (!native_view)
     return;
   gdk_window_set_cursor(native_view->window, cursor);
   if (cursor)
     gdk_cursor_destroy(cursor);
 #endif
 }
 
 }  // namespace views