content/browser/frame_host/render_widget_host_view_guest.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_GUEST_H_
   6 #define CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_GUEST_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
  12 #include "content/common/content_export.h"
  13 #include "content/common/cursors/webcursor.h"
  14 #include "ui/events/event.h"
  15 #include "ui/events/gestures/gesture_recognizer.h"
  16 #include "ui/events/gestures/gesture_types.h"
  17 #include "ui/gfx/native_widget_types.h"
  18 #include "ui/gfx/rect.h"
  19 #include "ui/gfx/vector2d_f.h"
  20
  21 namespace content {
  22 class BrowserPluginGuest;
  23 class RenderWidgetHost;
  24 class RenderWidgetHostImpl;
  25 struct NativeWebKeyboardEvent;
  26
  27 // See comments in render_widget_host_view.h about this class and its members.
  28 // This version is for the BrowserPlugin which handles a lot of the
  29 // functionality in a diffent place and isn't platform specific.
  30 // The BrowserPlugin is currently a special case for out-of-process rendered
  31 // content and therefore inherits from RenderWidgetHostViewChildFrame.
  32 // Eventually all RenderWidgetHostViewGuest code will be subsumed by
  33 // RenderWidgetHostViewChildFrame and this class will be removed.
  34 //
  35 // Some elements that are platform specific will be deal with by delegating
  36 // the relevant calls to the platform view.
  37 class CONTENT_EXPORT RenderWidgetHostViewGuest
  38     : public RenderWidgetHostViewChildFrame,
  39       public ui::GestureConsumer,
  40       public ui::GestureEventHelper {
  41  public:
  42   RenderWidgetHostViewGuest(
  43       RenderWidgetHost* widget,
  44       BrowserPluginGuest* guest,
  45       base::WeakPtr<RenderWidgetHostViewBase> platform_view);
  46   ~RenderWidgetHostViewGuest() override;
  47
  48   bool OnMessageReceivedFromEmbedder(const IPC::Message& message,
  49                                      RenderWidgetHostImpl* embedder);
  50
  51   // RenderWidgetHostView implementation.
  52   bool OnMessageReceived(const IPC::Message& msg) override;
  53   void InitAsChild(gfx::NativeView parent_view) override;
  54   void SetSize(const gfx::Size& size) override;
  55   void SetBounds(const gfx::Rect& rect) override;
  56   void Focus() override;
  57   bool HasFocus() const override;
  58   gfx::NativeView GetNativeView() const override;
  59   gfx::NativeViewId GetNativeViewId() const override;
  60   gfx::NativeViewAccessible GetNativeViewAccessible() override;
  61   gfx::Rect GetViewBounds() const override;
  62   void SetBackgroundColor(SkColor color) override;
  63   gfx::Size GetPhysicalBackingSize() const override;
  64   base::string16 GetSelectedText() const override;
  65
  66   // RenderWidgetHostViewBase implementation.
  67   void InitAsPopup(RenderWidgetHostView* parent_host_view,
  68                    const gfx::Rect& pos) override;
  69   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
  70   void WasShown() override;
  71   void WasHidden() override;
  72   void MovePluginWindows(const std::vector<WebPluginGeometry>& moves) override;
  73   void UpdateCursor(const WebCursor& cursor) override;
  74   void SetIsLoading(bool is_loading) override;
  75   void TextInputTypeChanged(ui::TextInputType type,
  76                             ui::TextInputMode input_mode,
  77                             bool can_compose_inline,
  78                             int flags) override;
  79   void ImeCancelComposition() override;
  80 #if defined(OS_MACOSX) || defined(USE_AURA)
  81   void ImeCompositionRangeChanged(
  82       const gfx::Range& range,
  83       const std::vector<gfx::Rect>& character_bounds) override;
  84 #endif
  85   void RenderProcessGone(base::TerminationStatus status,
  86                          int error_code) override;
  87   void Destroy() override;
  88   void SetTooltipText(const base::string16& tooltip_text) override;
  89   void SelectionChanged(const base::string16& text,
  90                         size_t offset,
  91                         const gfx::Range& range) override;
  92   void SelectionBoundsChanged(
  93       const ViewHostMsg_SelectionBounds_Params& params) override;
  94   void CopyFromCompositingSurface(const gfx::Rect& src_subrect,
  95                                   const gfx::Size& dst_size,
  96                                   CopyFromCompositingSurfaceCallback& callback,
  97                                   const SkColorType color_type) override;
  98   void OnSwapCompositorFrame(uint32 output_surface_id,
  99                              scoped_ptr<cc::CompositorFrame> frame) override;
 100 #if defined(USE_AURA)
 101   virtual void ProcessAckedTouchEvent(
 102       const TouchEventWithLatencyInfo& touch,
 103       InputEventAckState ack_result) override;
 104 #endif
 105   bool LockMouse() override;
 106   void UnlockMouse() override;
 107   void GetScreenInfo(blink::WebScreenInfo* results) override;
 108
 109 #if defined(OS_MACOSX)
 110   // RenderWidgetHostView implementation.
 111   void SetActive(bool active) override;
 112   void SetWindowVisibility(bool visible) override;
 113   void WindowFrameChanged() override;
 114   void ShowDefinitionForSelection() override;
 115   bool SupportsSpeech() const override;
 116   void SpeakSelection() override;
 117   bool IsSpeaking() const override;
 118   void StopSpeaking() override;
 119
 120   // RenderWidgetHostViewBase implementation.
 121   bool PostProcessEventForPluginIme(
 122       const NativeWebKeyboardEvent& event) override;
 123 #endif  // defined(OS_MACOSX)
 124
 125 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 126   // RenderWidgetHostViewBase implementation.
 127   virtual void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
 128                                        const SkBitmap& zoomed_bitmap) override;
 129 #endif  // defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 130
 131 #if defined(OS_ANDROID)
 132   virtual void LockCompositingSurface() override;
 133   virtual void UnlockCompositingSurface() override;
 134 #endif  // defined(OS_ANDROID)
 135
 136 #if defined(OS_WIN)
 137   virtual void SetParentNativeViewAccessible(
 138       gfx::NativeViewAccessible accessible_parent) override;
 139   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 140 #endif
 141
 142   // Overridden from ui::GestureEventHelper.
 143   bool CanDispatchToConsumer(ui::GestureConsumer* consumer) override;
 144   void DispatchGestureEvent(ui::GestureEvent* event) override;
 145   void DispatchCancelTouchEvent(ui::TouchEvent* event) override;
 146
 147   SkColorType PreferredReadbackFormat() override;
 148
 149  protected:
 150   friend class RenderWidgetHostView;
 151
 152  private:
 153   // Destroys this view without calling |Destroy| on |platform_view_|.
 154   void DestroyGuestView();
 155
 156   // Builds and forwards a WebKitGestureEvent to the renderer.
 157   bool ForwardGestureEventToRenderer(ui::GestureEvent* gesture);
 158
 159   // Process all of the given gestures (passes them on to renderer)
 160   void ProcessGestures(ui::GestureRecognizer::Gestures* gestures);
 161
 162   RenderWidgetHostViewBase* GetGuestRenderWidgetHostView() const;
 163
 164   void OnHandleInputEvent(RenderWidgetHostImpl* embedder,
 165                           int browser_plugin_instance_id,
 166                           const gfx::Rect& guest_window_rect,
 167                           const blink::WebInputEvent* event);
 168
 169   // BrowserPluginGuest and RenderWidgetHostViewGuest's lifetimes are not tied
 170   // to one another, therefore we access |guest_| through WeakPtr.
 171   base::WeakPtr<BrowserPluginGuest> guest_;
 172   gfx::Size size_;
 173   // The platform view for this RenderWidgetHostView.
 174   // RenderWidgetHostViewGuest mostly only cares about stuff related to
 175   // compositing, the rest are directly forwared to this |platform_view_|.
 176   base::WeakPtr<RenderWidgetHostViewBase> platform_view_;
 177 #if defined(USE_AURA)
 178   scoped_ptr<ui::GestureRecognizer> gesture_recognizer_;
 179 #endif
 180   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewGuest);
 181 };
 182
 183 }  // namespace content
 184
 185 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_GUEST_H_