Virtual Keyboard: Update insets on change to window bounds.

ui/keyboard/keyboard_controller.h

 // Copyright (c) 2013 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_KEYBOARD_KEYBOARD_CONTROLLER_H_
 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/event_types.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/ime/input_method_observer.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/rect.h"
 #include "ui/keyboard/keyboard_export.h"
 #include "url/gurl.h"
 
 namespace aura {
 class Window;
 }
 namespace ui {
 class InputMethod;
 class TextInputClient;
 }
 
 namespace keyboard {
 
 class CallbackAnimationObserver;
+class WindowBoundsChangeObserver;
 class KeyboardControllerObserver;
 class KeyboardControllerProxy;
 
 // Provides control of the virtual keyboard, including providing a container
 // and controlling visibility.
 class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,
                                            public aura::WindowObserver {
  public:
   // Different ways to hide the keyboard.
   enum HideReason {
@@ skipping 51 matching lines @@
 
   // Returns true if keyboard is currently visible.
   bool keyboard_visible() { return keyboard_visible_; }
 
   // Returns the current keyboard bounds. When the keyboard is not shown,
   // an empty rectangle will get returned.
   const gfx::Rect& current_keyboard_bounds() {
     return current_keyboard_bounds_;
   }
 
+  // Updates insets on web content window
+  void UpdateWindowInsets(aura::Window* window);
+
  private:
   // For access to Observer methods for simulation.
   friend class KeyboardControllerTest;
 
   // aura::WindowObserver overrides
   virtual void OnWindowHierarchyChanged(
       const HierarchyChangeParams& params) OVERRIDE;
 
   // InputMethodObserver overrides
   virtual void OnTextInputTypeChanged(
@@ skipping 15 matching lines @@
   void ResetWindowInsets();
 
   // Returns true if keyboard is scheduled to hide.
   bool WillHideKeyboard() const;
 
   // Called when show and hide animation finished successfully. If the animation
   // is aborted, it won't be called.
   void ShowAnimationFinished();
   void HideAnimationFinished();
 
+  // Adds or removes an observer for tracking changes to a window size or
+  // position while the keyboard is displayed. Any window repositioning
+  // invalidates insets for overscrolling.
+  void AddBoundsChangedObserver(aura::Window* window);
+  void RemoveBoundsChangedObserver(aura::Window* window);
+
   scoped_ptr<KeyboardControllerProxy> proxy_;
   scoped_ptr<aura::Window> container_;
   // CallbackAnimationObserver should destructed before container_ because it
   // uses container_'s animator.
   scoped_ptr<CallbackAnimationObserver> animation_observer_;
 
+  scoped_ptr<WindowBoundsChangeObserver> window_bounds_observer_;
+
   ui::InputMethod* input_method_;
   bool keyboard_visible_;
   bool lock_keyboard_;
   ui::TextInputType type_;
 
   ObserverList<KeyboardControllerObserver> observer_list_;
 
   base::WeakPtrFactory<KeyboardController> weak_factory_;
 
   // The currently used keyboard position.
   gfx::Rect current_keyboard_bounds_;
 
   static KeyboardController* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardController);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_H_