content/browser/renderer_host/render_widget_host_view_android.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_ANDROID_H_
#define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_

#include "base/compiler_specific.h"
#include "base/i18n/rtl.h"
#include "base/memory/scoped_ptr.h"
#include "base/process.h"
#include "content/browser/renderer_host/ime_adapter_android.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebExternalTextureLayer.h"
#include "ui/gfx/size.h"

struct ViewHostMsg_TextInputState_Params;

struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;

namespace content {
class ContentViewCoreImpl;
class RenderWidgetHost;
class RenderWidgetHostImpl;
struct NativeWebKeyboardEvent;

// -----------------------------------------------------------------------------
// See comments in render_widget_host_view.h about this class and its members.
// -----------------------------------------------------------------------------
class RenderWidgetHostViewAndroid : public RenderWidgetHostViewBase {
 public:
  RenderWidgetHostViewAndroid(RenderWidgetHostImpl* widget,
                              ContentViewCoreImpl* content_view_core);
  virtual ~RenderWidgetHostViewAndroid();

  // RenderWidgetHostView implementation.
  virtual void InitAsChild(gfx::NativeView parent_view) OVERRIDE;
  virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
                           const gfx::Rect& pos) OVERRIDE;
  virtual void InitAsFullscreen(
      RenderWidgetHostView* reference_host_view) OVERRIDE;
  virtual RenderWidgetHost* GetRenderWidgetHost() const OVERRIDE;
  virtual void WasShown() OVERRIDE;
  virtual void WasHidden() OVERRIDE;
  virtual void SetSize(const gfx::Size& size) OVERRIDE;
  virtual void SetBounds(const gfx::Rect& rect) OVERRIDE;
  virtual gfx::NativeView GetNativeView() const OVERRIDE;
  virtual gfx::NativeViewId GetNativeViewId() const OVERRIDE;
  virtual gfx::NativeViewAccessible GetNativeViewAccessible() OVERRIDE;
  virtual void MovePluginWindows(
      const gfx::Point& scroll_offset,
      const std::vector<webkit::npapi::WebPluginGeometry>& moves) OVERRIDE;
  virtual void Focus() OVERRIDE;
  virtual void Blur() OVERRIDE;
  virtual bool HasFocus() const OVERRIDE;
  virtual bool IsSurfaceAvailableForCopy() const OVERRIDE;
  virtual void Show() OVERRIDE;
  virtual void Hide() OVERRIDE;
  virtual bool IsShowing() OVERRIDE;
  virtual gfx::Rect GetViewBounds() const OVERRIDE;
  virtual void UpdateCursor(const WebCursor& cursor) OVERRIDE;
  virtual void SetIsLoading(bool is_loading) OVERRIDE;
  virtual void TextInputStateChanged(
      const ViewHostMsg_TextInputState_Params& params) OVERRIDE;
  virtual void ImeCancelComposition() OVERRIDE;
  virtual void DidUpdateBackingStore(
      const gfx::Rect& scroll_rect, int scroll_dx, int scroll_dy,
      const std::vector<gfx::Rect>& copy_rects) OVERRIDE;
  virtual void RenderViewGone(base::TerminationStatus status,
                              int error_code) OVERRIDE;
  virtual void Destroy() OVERRIDE;
  virtual void SetTooltipText(const string16& tooltip_text) OVERRIDE;
  virtual void SelectionChanged(const string16& text,
                                size_t offset,
                                const ui::Range& range) OVERRIDE;
  virtual void OnAcceleratedCompositingStateChange() OVERRIDE;
  virtual void AcceleratedSurfaceBuffersSwapped(
      const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
      int gpu_host_id) OVERRIDE;
  virtual void AcceleratedSurfacePostSubBuffer(
      const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
      int gpu_host_id) OVERRIDE;
  virtual void AcceleratedSurfaceSuspend() OVERRIDE;
  virtual bool HasAcceleratedSurface(const gfx::Size& desired_size) OVERRIDE;
  virtual void SetBackground(const SkBitmap& background) OVERRIDE;
  virtual void CopyFromCompositingSurface(
      const gfx::Rect& src_subrect,
      const gfx::Size& dst_size,
      const base::Callback<void(bool)>& callback,
      skia::PlatformCanvas* output) OVERRIDE;
  virtual BackingStore* AllocBackingStore(const gfx::Size& size) OVERRIDE;
  virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
  virtual void GetScreenInfo(WebKit::WebScreenInfo* results) OVERRIDE;
  virtual gfx::Rect GetBoundsInRootWindow() OVERRIDE;
  virtual void UnhandledWheelEvent(
      const WebKit::WebMouseWheelEvent& event) OVERRIDE;
  virtual void ProcessTouchAck(WebKit::WebInputEvent::Type type,
                               bool processed) OVERRIDE;
  virtual void SetHasHorizontalScrollbar(
      bool has_horizontal_scrollbar) OVERRIDE;
  virtual void SetScrollOffsetPinning(
      bool is_pinned_to_left, bool is_pinned_to_right) OVERRIDE;
  virtual bool LockMouse() OVERRIDE;
  virtual void UnlockMouse() OVERRIDE;
  virtual void StartContentIntent(const GURL& content_url) OVERRIDE;
  virtual void DidSetNeedTouchEvents(bool need_touch_events) OVERRIDE;

  void SetContentViewCore(ContentViewCoreImpl* content_view_core);

  void SendKeyEvent(const NativeWebKeyboardEvent& event);
  void TouchEvent(const WebKit::WebTouchEvent& event);
  void GestureEvent(const WebKit::WebGestureEvent& event);

  int GetNativeImeAdapter();

  // Select all text between the given coordinates.
  void SelectRange(const gfx::Point& start, const gfx::Point& end);

 private:
  // The model object.
  RenderWidgetHostImpl* host_;

  // Whether or not this widget is hidden.
  bool is_hidden_;

  // ContentViewCoreImpl is our interface to the view system.
  ContentViewCoreImpl* content_view_core_;

  // The size that we want the renderer to be.  We keep this in a separate
  // variable because resizing is async.
  gfx::Size requested_size_;

  ImeAdapterAndroid ime_adapter_android_;

  // The texture layer for this view when using browser-side compositing.
  scoped_ptr<WebKit::WebExternalTextureLayer> texture_layer_;

  // The handle for the transport surface (between renderer and browser-side
  // compositor) for this view.
  gfx::GLSurfaceHandle shared_surface_;

  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAndroid);
};

} // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_