text: // 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/skia/include/core/SkColor.h"
  #include "third_party/WebKit/Source/Platform/chromium/public/WebExternalTextureLayer.h"
  #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
  #include "ui/gfx/size.h"
  
  struct ViewHostMsg_TextInputState_Params;
  
  struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
  struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
  
  namespace WebKit {
  class WebTouchEvent;
  class WebMouseEvent;
  }
  
  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 SelectionBoundsChanged(
        const gfx::Rect& start_rect,
        WebKit::WebTextDirection start_direction,
        const gfx::Rect& end_rect,
        WebKit::WebTextDirection end_direction) 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::PlatformBitmap* 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 ProcessAckedTouchEvent(const WebKit::WebTouchEvent& touch,
                                        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 HasTouchEventHandlers(bool need_touch_events) OVERRIDE;
    virtual void SetCachedBackgroundColor(SkColor color) OVERRIDE;
    virtual void SetCachedPageScaleFactorLimits(float minimum_scale,
                                                float maximum_scale) OVERRIDE;
    virtual void UpdateFrameInfo(const gfx::Point& scroll_offset,
                                 float page_scale_factor,
                                 const gfx::Size& content_size) OVERRIDE;
  
    // Non-virtual methods
    void SetContentViewCore(ContentViewCoreImpl* content_view_core);
    SkColor GetCachedBackgroundColor() const;
    void SendKeyEvent(const NativeWebKeyboardEvent& event);
    void SendTouchEvent(const WebKit::WebTouchEvent& event);
    void SendMouseEvent(const WebKit::WebMouseEvent& event);
    void SendMouseWheelEvent(const WebKit::WebMouseWheelEvent& event);
    void SendGestureEvent(const WebKit::WebGestureEvent& event);
  
    int GetNativeImeAdapter();
  
    WebKit::WebGLId GetScaledContentTexture(const gfx::Size& size);
    bool PopulateBitmapWithContents(jobject jbitmap);
  
    // 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_;
  
    // Body background color of the underlying document.
    SkColor cached_background_color_;
  
    // The texture layer for this view when using browser-side compositing.
    scoped_ptr<WebKit::WebExternalTextureLayer> texture_layer_;
  
    // The most recent texture id that was pushed to the texture layer.
    unsigned int texture_id_in_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_
  