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cef/libcef/browser/render_widget_host_view_osr.h

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// Copyright (c) 2014 The Chromium Embedded Framework Authors.
// Portions 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 CEF_LIBCEF_BROWSER_RENDER_WIDGET_HOST_VIEW_OSR_H_
#define CEF_LIBCEF_BROWSER_RENDER_WIDGET_HOST_VIEW_OSR_H_
#pragma once
#include <vector>
#include "include/cef_base.h"
#include "include/cef_browser.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/compositor/delegated_frame_host.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "ui/compositor/compositor.h"
#if defined(OS_WIN)
#include "ui/gfx/win/window_impl.h"
#endif
namespace content {
class RenderWidgetHost;
class RenderWidgetHostImpl;
class BackingStore;
}
class CefBrowserHostImpl;
class CefWebContentsViewOSR;
#if defined(OS_MACOSX)
#ifdef __OBJC__
@class NSWindow;
#else
class NSWindow;
#endif
#endif
#if defined(USE_X11)
class CefWindowX11;
#endif
///////////////////////////////////////////////////////////////////////////////
// CefRenderWidgetHostViewOSR
//
// An object representing the "View" of a rendered web page. This object is
// responsible for sending paint events to the the CefRenderHandler
// when window rendering is disabled. It is the implementation of the
// RenderWidgetHostView that the cross-platform RenderWidgetHost object uses
// to display the data.
//
// Comment excerpted from render_widget_host.h:
//
// "The lifetime of the RenderWidgetHostView is tied to the render process.
// If the render process dies, the RenderWidgetHostView goes away and all
// references to it must become NULL."
//
// RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
///////////////////////////////////////////////////////////////////////////////
class CefRenderWidgetHostViewOSR
: public content::RenderWidgetHostViewBase,
public content::DelegatedFrameHostClient {
public:
explicit CefRenderWidgetHostViewOSR(content::RenderWidgetHost* widget);
virtual ~CefRenderWidgetHostViewOSR();
// RenderWidgetHostView implementation.
virtual void InitAsChild(gfx::NativeView parent_view) OVERRIDE;
virtual content::RenderWidgetHost* GetRenderWidgetHost() const 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 ui::TextInputClient* GetTextInputClient() OVERRIDE;
virtual void Focus() 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 SetBackgroundOpaque(bool opaque) OVERRIDE;
virtual bool LockMouse() OVERRIDE;
virtual void UnlockMouse() OVERRIDE;
#if defined(OS_MACOSX)
virtual void SetActive(bool active) OVERRIDE;
virtual void SetTakesFocusOnlyOnMouseDown(bool flag) OVERRIDE;
virtual void SetWindowVisibility(bool visible) OVERRIDE;
virtual void WindowFrameChanged() OVERRIDE;
virtual void ShowDefinitionForSelection() OVERRIDE;
virtual bool SupportsSpeech() const OVERRIDE;
virtual void SpeakSelection() OVERRIDE;
virtual bool IsSpeaking() const OVERRIDE;
virtual void StopSpeaking() OVERRIDE;
#endif // defined(OS_MACOSX)
// RenderWidgetHostViewBase implementation.
virtual void OnSwapCompositorFrame(
uint32 output_surface_id,
scoped_ptr<cc::CompositorFrame> frame) OVERRIDE;
virtual void InitAsPopup(content::RenderWidgetHostView* parent_host_view,
const gfx::Rect& pos) OVERRIDE;
virtual void InitAsFullscreen(
content::RenderWidgetHostView* reference_host_view) OVERRIDE;
virtual void WasShown() OVERRIDE;
virtual void WasHidden() OVERRIDE;
virtual void MovePluginWindows(
const std::vector<content::WebPluginGeometry>& moves) OVERRIDE;
virtual void Blur() OVERRIDE;
virtual void UpdateCursor(const content::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 RenderProcessGone(base::TerminationStatus status,
int error_code) OVERRIDE;
virtual void Destroy() OVERRIDE;
virtual void SetTooltipText(const base::string16& tooltip_text) OVERRIDE;
virtual void SelectionChanged(const base::string16& text,
size_t offset,
const gfx::Range& range) OVERRIDE;
virtual gfx::Size GetRequestedRendererSize() const OVERRIDE;
virtual gfx::Size GetPhysicalBackingSize() const OVERRIDE;
virtual void SelectionBoundsChanged(
const ViewHostMsg_SelectionBounds_Params& params) OVERRIDE;
virtual void ScrollOffsetChanged() OVERRIDE;
virtual void CopyFromCompositingSurface(
const gfx::Rect& src_subrect,
const gfx::Size& dst_size,
const base::Callback<void(bool, const SkBitmap&)>& callback,
const SkBitmap::Config config) OVERRIDE;
virtual void CopyFromCompositingSurfaceToVideoFrame(
const gfx::Rect& src_subrect,
const scoped_refptr<media::VideoFrame>& target,
const base::Callback<void(bool)>& callback) OVERRIDE;
virtual bool CanCopyToVideoFrame() const OVERRIDE;
virtual bool CanSubscribeFrame() const OVERRIDE;
virtual void BeginFrameSubscription(
scoped_ptr<content::RenderWidgetHostViewFrameSubscriber> subscriber)
OVERRIDE;
virtual void EndFrameSubscription() OVERRIDE;
virtual void AcceleratedSurfaceInitialized(int host_id,
int route_id) OVERRIDE;
virtual void AcceleratedSurfaceBuffersSwapped(
const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params_in_pixel,
int gpu_host_id) OVERRIDE;
virtual void AcceleratedSurfacePostSubBuffer(
const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params_in_pixel,
int gpu_host_id) OVERRIDE;
virtual void AcceleratedSurfaceSuspend() OVERRIDE;
virtual void AcceleratedSurfaceRelease() OVERRIDE;
virtual bool HasAcceleratedSurface(const gfx::Size& desired_size) OVERRIDE;
virtual void GetScreenInfo(blink::WebScreenInfo* results) OVERRIDE;
virtual gfx::Rect GetBoundsInRootWindow() OVERRIDE;
virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
#if defined(OS_MACOSX)
virtual bool PostProcessEventForPluginIme(
const content::NativeWebKeyboardEvent& event) OVERRIDE;
#endif
#if defined(OS_MACOSX) || defined(USE_AURA)
virtual void ImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) OVERRIDE;
#endif
#if defined(OS_WIN)
virtual void SetParentNativeViewAccessible(
gfx::NativeViewAccessible accessible_parent) OVERRIDE;
virtual gfx::NativeViewId GetParentForWindowlessPlugin() const OVERRIDE;
#endif
// DelegatedFrameHost implementation.
virtual ui::Compositor* GetCompositor() const OVERRIDE;
virtual ui::Layer* GetLayer() OVERRIDE;
virtual content::RenderWidgetHostImpl* GetHost() OVERRIDE;
virtual void SchedulePaintInRect(
const gfx::Rect& damage_rect_in_dip) OVERRIDE;
virtual bool IsVisible() OVERRIDE;
virtual scoped_ptr<content::ResizeLock> CreateResizeLock(
bool defer_compositor_lock) OVERRIDE;
virtual gfx::Size DesiredFrameSize() OVERRIDE;
virtual float CurrentDeviceScaleFactor() OVERRIDE;
virtual gfx::Size ConvertViewSizeToPixel(const gfx::Size& size) OVERRIDE;
virtual content::DelegatedFrameHost* GetDelegatedFrameHost() const OVERRIDE;
bool InstallTransparency();
void WasResized();
void OnScreenInfoChanged();
void Invalidate(CefBrowserHost::PaintElementType type);
void SendKeyEvent(const content::NativeWebKeyboardEvent& event);
void SendMouseEvent(const blink::WebMouseEvent& event);
void SendMouseWheelEvent(const blink::WebMouseWheelEvent& event);
void SendFocusEvent(bool focus);
void HoldResize();
void ReleaseResize();
bool IsPopupWidget() const {
return popup_type_ != blink::WebPopupTypeNone;
}
#if defined(OS_MACOSX)
NSTextInputContext* GetNSTextInputContext();
void HandleKeyEventBeforeTextInputClient(CefEventHandle keyEvent);
void HandleKeyEventAfterTextInputClient(CefEventHandle keyEvent);
bool GetCachedFirstRectForCharacterRange(gfx::Range range, gfx::Rect* rect,
gfx::Range* actual_range) const;
#endif // defined(OS_MACOSX)
CefRefPtr<CefBrowserHostImpl> browser_impl() const { return browser_impl_; }
void set_browser_impl(CefRefPtr<CefBrowserHostImpl> browser) {
browser_impl_ = browser;
}
void set_popup_host_view(CefRenderWidgetHostViewOSR* popup_view) {
popup_host_view_ = popup_view;
}
ui::Compositor* compositor() const { return compositor_.get(); }
content::RenderWidgetHostImpl* render_widget_host() const
{ return render_widget_host_; }
private:
void SetFrameRate();
void ResizeRootLayer();
// Implementation based on RendererOverridesHandler::InnerSwapCompositorFrame
// and DelegatedFrameHost::CopyFromCompositingSurface.
void GenerateFrame(bool force_frame);
void InternalGenerateFrame();
void CopyFromCompositingSurfaceHasResult(
scoped_ptr<cc::CopyOutputResult> result);
void PrepareTextureCopyOutputResult(
scoped_ptr<cc::CopyOutputResult> result);
static void CopyFromCompositingSurfaceFinishedProxy(
base::WeakPtr<CefRenderWidgetHostViewOSR> view,
scoped_ptr<cc::SingleReleaseCallback> release_callback,
scoped_ptr<SkBitmap> bitmap,
scoped_ptr<SkAutoLockPixels> bitmap_pixels_lock,
bool result);
void CopyFromCompositingSurfaceFinished(
scoped_ptr<SkBitmap> bitmap,
scoped_ptr<SkAutoLockPixels> bitmap_pixels_lock,
bool result);
void PrepareBitmapCopyOutputResult(
scoped_ptr<cc::CopyOutputResult> result);
void OnFrameCaptureFailure();
void OnFrameCaptureSuccess(
const SkBitmap& bitmap,
scoped_ptr<SkAutoLockPixels> bitmap_pixels_lock);
void OnFrameCaptureCompletion(bool force_frame);
void CancelPopupWidget();
#if defined(OS_MACOSX)
// Returns composition character boundary rectangle. The |range| is
// composition based range. Also stores |actual_range| which is corresponding
// to actually used range for returned rectangle.
gfx::Rect GetFirstRectForCompositionRange(const gfx::Range& range,
gfx::Range* actual_range) const;
// Converts from given whole character range to composition oriented range. If
// the conversion failed, return gfx::Range::InvalidRange.
gfx::Range ConvertCharacterRangeToCompositionRange(
const gfx::Range& request_range) const;
// Returns true if there is line break in |range| and stores line breaking
// point to |line_breaking_point|. The |line_break_point| is valid only if
// this function returns true.
static bool GetLineBreakIndex(const std::vector<gfx::Rect>& bounds,
const gfx::Range& range,
size_t* line_break_point);
void DestroyNSTextInputOSR();
#endif // defined(OS_MACOSX)
void PlatformCreateCompositorWidget();
void PlatformDestroyCompositorWidget();
scoped_ptr<content::DelegatedFrameHost> delegated_frame_host_;
scoped_ptr<ui::Compositor> compositor_;
gfx::AcceleratedWidget compositor_widget_;
scoped_ptr<ui::Layer> root_layer_;
#if defined(OS_WIN)
scoped_ptr<gfx::WindowImpl> window_;
#elif defined(OS_MACOSX)
NSWindow* window_;
#elif defined(USE_X11)
CefWindowX11* window_;
#endif
int frame_rate_threshold_ms_;
base::TimeTicks frame_start_time_;
bool frame_pending_;
bool frame_in_progress_;
int frame_retry_count_;
scoped_ptr<SkBitmap> bitmap_;
bool hold_resize_;
bool pending_resize_;
// The associated Model. While |this| is being Destroyed,
// |render_widget_host_| is NULL and the message loop is run one last time
// Message handlers must check for a NULL |render_widget_host_|.
content::RenderWidgetHostImpl* render_widget_host_;
CefRenderWidgetHostViewOSR* parent_host_view_;
CefRenderWidgetHostViewOSR* popup_host_view_;
CefRefPtr<CefBrowserHostImpl> browser_impl_;
bool is_showing_;
bool is_destroyed_;
gfx::Rect popup_position_;
#if defined(OS_MACOSX)
NSTextInputContext* text_input_context_osr_mac_;
#endif
base::WeakPtrFactory<CefRenderWidgetHostViewOSR> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(CefRenderWidgetHostViewOSR);
};
#endif // CEF_LIBCEF_BROWSER_RENDER_WIDGET_HOST_VIEW_OSR_H_
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