make menus, bubbles, etc. top level windows on aura

ui/aura/window_delegate.h

 // 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.
 
 #ifndef UI_AURA_WINDOW_DELEGATE_H_
 #define UI_AURA_WINDOW_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "ui/aura/aura_export.h"
@@ skipping 21 matching lines @@
 
 // Delegate interface for aura::Window.
 class AURA_EXPORT WindowDelegate : public ui::EventHandler {
  public:
   // Returns the window's minimum size, or size 0,0 if there is no limit.
   virtual gfx::Size GetMinimumSize() const = 0;
 
   // Returns the window's maximum size, or size 0,0 if there is no limit.
   virtual gfx::Size GetMaximumSize() const = 0;
 
+  // Ensure the host window is at least this large so that transitions have
+  // sufficient space.
+  virtual void SetHostTransitionBounds(const gfx::Rect& bounds) = 0;

[sky, 2013/03/15 03:15:05]

This and OnWindowHidingAnimationCompleted seem so specific that I would rather
they exist in their own interface. The animation code could look for a specific
property set on the window to see it it should invoke these.
DesktopNativeWidgetAura or maybe just RootWindowHostWin would implement the
interface.

[scottmg, 2013/03/15 22:23:46]

Done, seems much better.

+
   // Called when the Window's position and/or size changes.
   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
                                const gfx::Rect& new_bounds) = 0;
 
   // Returns the native cursor for the specified point, in window coordinates,
   // or NULL for the default cursor.
   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) = 0;
 
   // Returns the non-client component (see hit_test.h) containing |point|, in
   // window coordinates.
@@ skipping 10 matching lines @@
 
   // Invoked when mouse capture is lost on the window.
   virtual void OnCaptureLost() = 0;
 
   // Asks the delegate to paint window contents into the supplied canvas.
   virtual void OnPaint(gfx::Canvas* canvas) = 0;
 
   // Called when the window's device scale factor has changed.
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) = 0;
 
+  // Called after the window has faded out on a hide.
+  virtual void OnWindowHidingAnimationCompleted() = 0;
+
   // Called from Window's destructor before OnWindowDestroyed and before the
   // children have been destroyed and the window has been removed from its
   // parent.
   virtual void OnWindowDestroying() = 0;
 
   // Called when the Window has been destroyed (i.e. from its destructor). This
   // is called after OnWindowDestroying and after the children have been
   // deleted and the window has been removed from its parent.
   // The delegate can use this as an opportunity to delete itself if necessary.
   virtual void OnWindowDestroyed() = 0;
@@ skipping 17 matching lines @@
   // an external texture.
   virtual scoped_refptr<ui::Texture> CopyTexture() = 0;
 
  protected:
   virtual ~WindowDelegate() {}
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_DELEGATE_H_