Implement overscroll support for the virtual keyboard.

content/browser/renderer_host/render_widget_host_view_aura.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 13 matching lines @@
 #include "content/browser/compositor/owned_mailbox.h"
 #include "content/browser/renderer_host/delegated_frame_evictor.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/renderer_host/software_frame_manager.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/cursor_client_observer.h"
 #include "ui/aura/client/focus_change_observer.h"
+#include "ui/aura/client/virtual_keyboard_observer.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_tree_host_observer.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_observer.h"
 #include "ui/compositor/compositor_vsync_manager.h"
 #include "ui/gfx/display_observer.h"
 #include "ui/gfx/rect.h"
 #include "ui/wm/public/activation_change_observer.h"
 #include "ui/wm/public/activation_delegate.h"
@@ skipping 43 matching lines @@
       public ui::CompositorObserver,
       public ui::CompositorVSyncManager::Observer,
       public ui::TextInputClient,
       public gfx::DisplayObserver,
       public aura::WindowTreeHostObserver,
       public aura::WindowDelegate,
       public aura::client::ActivationDelegate,
       public aura::client::ActivationChangeObserver,
       public aura::client::FocusChangeObserver,
       public aura::client::CursorClientObserver,
+      public aura::client::VirtualKeyboardObserver,
       public ImageTransportFactoryObserver,
       public BrowserAccessibilityDelegate,
       public SoftwareFrameManagerClient,
       public DelegatedFrameEvictorClient,
       public base::SupportsWeakPtr<RenderWidgetHostViewAura>,
       public cc::DelegatedFrameResourceCollectionClient {
  public:
   // Displays and controls touch editing elements such as selection handles.
   class TouchEditingClient {
    public:
@@ skipping 125 matching lines @@
       bool has_horizontal_scrollbar) OVERRIDE;
   virtual void SetScrollOffsetPinning(
       bool is_pinned_to_left, bool is_pinned_to_right) OVERRIDE;
   virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
   virtual void CreateBrowserAccessibilityManagerIfNeeded() OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
   virtual void OnSwapCompositorFrame(
       uint32 output_surface_id,
       scoped_ptr<cc::CompositorFrame> frame) OVERRIDE;
+  virtual float GetOverdrawBottomHeight() const OVERRIDE;
 #if defined(OS_WIN)
   virtual void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) OVERRIDE;
   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const OVERRIDE;
 #endif
 
   // Overridden from ui::TextInputClient:
   virtual void SetCompositionText(
       const ui::CompositionText& composition) OVERRIDE;
   virtual void ConfirmCompositionText() OVERRIDE;
@@ skipping 61 matching lines @@
   // Overridden from aura::client::ActivationDelegate:
   virtual bool ShouldActivate() const OVERRIDE;
 
   // Overridden from aura::client::ActivationChangeObserver:
   virtual void OnWindowActivated(aura::Window* gained_activation,
                                  aura::Window* lost_activation) OVERRIDE;
 
   // Overridden from aura::client::CursorClientObserver:
   virtual void OnCursorVisibilityChanged(bool is_visible) OVERRIDE;
 
+  // Overridden from aura::client::VirtualKeyboardObserver:
+  virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) OVERRIDE;
+
   // Overridden from aura::client::FocusChangeObserver:
   virtual void OnWindowFocused(aura::Window* gained_focus,
                                aura::Window* lost_focus) OVERRIDE;
 
   // Overridden from aura::WindowTreeHostObserver:
   virtual void OnHostMoved(const aura::WindowTreeHost* host,
                            const gfx::Point& new_origin) OVERRIDE;
 
   // SoftwareFrameManagerClient implementation:
   virtual void SoftwareFrameWasFreed(
@@ skipping 415 matching lines @@
   // The list of rectangles from constrained windows over this view. Windowed
   // NPAPI plugins shouldn't draw over them.
   std::vector<gfx::Rect> constrained_rects_;
 
   typedef std::map<HWND, WebPluginGeometry> PluginWindowMoves;
   // Contains information about each windowed plugin's clip and cutout rects (
   // from the renderer). This is needed because when the transient windoiws
   // over this view changes, we need this information in order to create a new
   // region for the HWND.
   PluginWindowMoves plugin_window_moves_;
+#elif defined(OS_CHROMEOS)
+  // Bounds of onscreen keyboard.
+  gfx::Rect virtual_keyboard_bounds_;
 #endif
 
   base::TimeTicks last_draw_ended_;
 
   // Subscriber that listens to frame presentation events.
   scoped_ptr<RenderWidgetHostViewFrameSubscriber> frame_subscriber_;
   std::vector<scoped_refptr<OwnedMailbox> > idle_frame_subscriber_textures_;
   std::set<OwnedMailbox*> active_frame_subscriber_textures_;
 
   // YUV readback pipeline.
@@ skipping 24 matching lines @@
   // etc.
   scoped_ptr<content::LegacyRenderWidgetHostHWND>
       legacy_render_widget_host_HWND_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_