Partial fix for keyboard occlusion.

ash/shelf/shelf_layout_manager.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 ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 #define ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher.h"
 #include "ash/shelf/background_animator.h"
 #include "ash/shelf/shelf_types.h"
 #include "ash/shell_observer.h"
 #include "ash/system/status_area_widget.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/observer_list.h"
 #include "base/timer.h"
 #include "ui/aura/client/activation_change_observer.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/rect.h"
+#include "ui/keyboard/keyboard_controller.h"
 
 namespace aura {
 class RootWindow;
 }
 
 namespace ui {
 class GestureEvent;
 }
 
 namespace ash {
 class ScreenAsh;
 class ShelfWidget;
 namespace internal {
 
 class PanelLayoutManagerTest;
 class ShelfLayoutManagerTest;
 class StatusAreaWidget;
 class WorkspaceController;
 
 // ShelfLayoutManager is the layout manager responsible for the launcher and
 // status widgets. The launcher is given the total available width and told the
 // width of the status area. This allows the launcher to draw the background and
 // layout to the status area.
 // To respond to bounds changes in the status area StatusAreaLayoutManager works
 // closely with ShelfLayoutManager.
 class ASH_EXPORT ShelfLayoutManager :
     public aura::LayoutManager,
     public ash::ShellObserver,
-    public aura::client::ActivationChangeObserver {
+    public aura::client::ActivationChangeObserver,
+    public keyboard::KeyboardController::Observer {
  public:
 
   // TODO(rharrison): Move this observer out of ash::internal::
   //                  namespace. Tracked in crosbug.com/223936
   class ASH_EXPORT Observer {
    public:
     // Called when the target ShelfLayoutManager will be deleted.
     virtual void WillDeleteShelf() {}
 
     // Called when the visibility change is scheduled.
@@ skipping 210 matching lines @@
       ShelfVisibilityState visibility_state) const;
 
   // Updates the hit test bounds override for launcher and status area.
   void UpdateHitTestBounds();
 
   // Returns true if |window| is a descendant of the shelf.
   bool IsShelfWindow(aura::Window* window);
 
   int GetWorkAreaSize(const State& state, int size) const;
 
+  // Return the bounds available in the parent, taking into account the bounds
+  // of the keyboard if necessary.
+  gfx::Rect GetAvailableBounds() const;
+
+  // Overridden from keyboard::KeyboardController::Observer:
+  virtual void OnKeyboardBoundsChanging(
+      const gfx::Rect& keyboard_bounds) OVERRIDE;
+
   // The RootWindow is cached so that we don't invoke Shell::GetInstance() from
   // our destructor. We avoid that as at the time we're deleted Shell is being
   // deleted too.
   aura::RootWindow* root_window_;
 
   // True when inside LayoutShelf method. Used to prevent calling LayoutShelf
   // again from SetChildBounds().
   bool in_layout_;
 
   // See description above setter.
@@ skipping 33 matching lines @@
   // Tracks the amount of the drag. The value is only valid when
   // |gesture_drag_status_| is set to GESTURE_DRAG_IN_PROGRESS.
   float gesture_drag_amount_;
 
   // Manage the auto-hide state during the gesture.
   ShelfAutoHideState gesture_drag_auto_hide_state_;
 
   // Used to delay updating shelf background.
   UpdateShelfObserver* update_shelf_observer_;
 
+  // The bounds of the keyboard.
+  gfx::Rect keyboard_bounds_;
+
   DISALLOW_COPY_AND_ASSIGN(ShelfLayoutManager);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SHELF_SHELF_LAYOUT_MANAGER_H_