Aura: windows in aura should honor Widget::InitParams::accept_events

ui/aura/window_delegate.h

 // Copyright (c) 2011 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.
 
 #ifndef UI_AURA_WINDOW_DELEGATE_H_
 #define UI_AURA_WINDOW_DELEGATE_H_
 #pragma once
 
 #include "ui/aura/aura_export.h"
 #include "ui/base/events.h"
@@ skipping 36 matching lines @@
   virtual bool OnMouseEvent(MouseEvent* event) = 0;
 
   virtual ui::TouchStatus OnTouchEvent(TouchEvent* event) = 0;
 
   // Returns true if the window should be activated. |event| is either the mouse
   // event supplied if the activation is the result of a mouse, or the touch
   // event if the activation is the result of a touch, or NULL if activation is
   // attempted for another reason.
   virtual bool ShouldActivate(Event* event) = 0;
 
+  // Returns true if this window should accept events, false if it should
+  // ignore all events and make them pass to the window behind it.
+  virtual bool ShouldAcceptEvents() { return true; }

[Ben Goodger (Google), 2011/11/15 22:10:53]

Everything else on this interface is pure virtual. 

Instead, can we add an ignores_events_ field to Window?

+
   // Sent when the window is activated.
   virtual void OnActivated() = 0;
 
   // Sent when the window loses active status.
   virtual void OnLostActive() = 0;
 
   // Invoked when mouse capture is lost on the window.
   virtual void OnCaptureLost() = 0;
 
   // Asks the delegate to paint window contents into the supplied canvas.
@@ skipping 12 matching lines @@
   // Called when the visibility of a Window changed.
   virtual void OnWindowVisibilityChanged(bool visible) = 0;
 
  protected:
   virtual ~WindowDelegate() {}
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_DELEGATE_H_