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cef/libcef/browser/osr/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_OSR_RENDER_WIDGET_HOST_VIEW_OSR_H_
#define CEF_LIBCEF_BROWSER_OSR_RENDER_WIDGET_HOST_VIEW_OSR_H_
#pragma once
#include <set>
#include <vector>
#include "include/cef_base.h"
#include "include/cef_browser.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/delegated_frame_host.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "ui/compositor/compositor.h"
#if defined(OS_LINUX)
#include "ui/base/x/x11_util.h"
#endif
#if defined(OS_MACOSX)
#include "content/browser/renderer_host/browser_compositor_view_mac.h"
#endif
#if defined(OS_WIN)
#include "ui/gfx/win/window_impl.h"
#endif
namespace content {
class RenderWidgetHost;
class RenderWidgetHostImpl;
class RenderWidgetHostViewGuest;
class BackingStore;
}
class CefBeginFrameTimer;
class CefBrowserHostImpl;
class CefCopyFrameGenerator;
class CefSoftwareOutputDeviceOSR;
class CefWebContentsViewOSR;
#if defined(OS_MACOSX)
#ifdef __OBJC__
@class CALayer;
@class NSWindow;
#else
class CALayer;
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.
///////////////////////////////////////////////////////////////////////////////
#if defined(OS_MACOSX)
class MacHelper;
#endif
class CefRenderWidgetHostViewOSR
: public content::RenderWidgetHostViewBase,
public ui::CompositorDelegate
#if !defined(OS_MACOSX)
, public content::DelegatedFrameHostClient
#endif
{
public:
CefRenderWidgetHostViewOSR(const bool transparent,
content::RenderWidgetHost* widget,
CefRenderWidgetHostViewOSR* parent_host_view);
~CefRenderWidgetHostViewOSR() override;
// RenderWidgetHostView implementation.
void InitAsChild(gfx::NativeView parent_view) override;
content::RenderWidgetHost* GetRenderWidgetHost() const override;
void SetSize(const gfx::Size& size) override;
void SetBounds(const gfx::Rect& rect) override;
gfx::Vector2dF GetLastScrollOffset() const override;
gfx::NativeView GetNativeView() const override;
gfx::NativeViewAccessible GetNativeViewAccessible() override;
void Focus() override;
bool HasFocus() const override;
bool IsSurfaceAvailableForCopy() const override;
void Show() override;
void Hide() override;
bool IsShowing() override;
gfx::Rect GetViewBounds() const override;
void SetBackgroundColor(SkColor color) override;
bool LockMouse() override;
void UnlockMouse() override;
#if defined(OS_MACOSX)
ui::AcceleratedWidgetMac* GetAcceleratedWidgetMac() const override;
void SetActive(bool active) override;
void ShowDefinitionForSelection() override;
bool SupportsSpeech() const override;
void SpeakSelection() override;
bool IsSpeaking() const override;
void StopSpeaking() override;
#endif // defined(OS_MACOSX)
// RenderWidgetHostViewBase implementation.
void OnSwapCompositorFrame(uint32_t output_surface_id,
cc::CompositorFrame frame) override;
void ClearCompositorFrame() override;
void InitAsPopup(content::RenderWidgetHostView* parent_host_view,
const gfx::Rect& pos) override;
void InitAsFullscreen(
content::RenderWidgetHostView* reference_host_view) override;
void UpdateCursor(const content::WebCursor& cursor) override;
void SetIsLoading(bool is_loading) override;
void RenderProcessGone(base::TerminationStatus status,
int error_code) override;
void Destroy() override;
void SetTooltipText(const base::string16& tooltip_text) override;
gfx::Size GetRequestedRendererSize() const override;
gfx::Size GetPhysicalBackingSize() const override;
void CopyFromCompositingSurface(
const gfx::Rect& src_subrect,
const gfx::Size& dst_size,
const content::ReadbackRequestCallback& callback,
const SkColorType color_type) override;
void CopyFromCompositingSurfaceToVideoFrame(
const gfx::Rect& src_subrect,
const scoped_refptr<media::VideoFrame>& target,
const base::Callback<void(const gfx::Rect&, bool)>& callback) override;
bool CanCopyToVideoFrame() const override;
void BeginFrameSubscription(
std::unique_ptr<content::RenderWidgetHostViewFrameSubscriber> subscriber)
override;
void EndFrameSubscription() override;
bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
gfx::Rect GetBoundsInRootWindow() override;
content::BrowserAccessibilityManager*
CreateBrowserAccessibilityManager(
content::BrowserAccessibilityDelegate* delegate,
bool for_root_frame) override;
void LockCompositingSurface() override;
void UnlockCompositingSurface() override;
#if defined(TOOLKIT_VIEWS) || defined(USE_AURA)
void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
const SkBitmap& zoomed_bitmap) override;
#endif
void ImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) override;
void SetNeedsBeginFrames(bool enabled) override;
// ui::CompositorDelegate implementation.
std::unique_ptr<cc::SoftwareOutputDevice> CreateSoftwareOutputDevice(
ui::Compositor* compositor) override;
#if !defined(OS_MACOSX)
// DelegatedFrameHostClient implementation.
ui::Layer* DelegatedFrameHostGetLayer() const override;
bool DelegatedFrameHostIsVisible() const override;
SkColor DelegatedFrameHostGetGutterColor(SkColor color) const override;
gfx::Size DelegatedFrameHostDesiredSizeInDIP() const override;
bool DelegatedFrameCanCreateResizeLock() const override;
std::unique_ptr<content::ResizeLock> DelegatedFrameHostCreateResizeLock(
bool defer_compositor_lock) override;
void DelegatedFrameHostResizeLockWasReleased() override;
void DelegatedFrameHostSendReclaimCompositorResources(
int output_surface_id,
bool is_swap_ack,
const cc::ReturnedResourceArray& resources) override;
void SetBeginFrameSource(cc::BeginFrameSource* source) override;
bool IsAutoResizeEnabled() const override;
#endif // !defined(OS_MACOSX)
bool InstallTransparency();
void WasResized();
void GetScreenInfo(content::ScreenInfo* results);
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 UpdateFrameRate();
void HoldResize();
void ReleaseResize();
void OnPaint(const gfx::Rect& damage_rect,
int bitmap_width,
int bitmap_height,
void* bitmap_pixels);
bool IsPopupWidget() const {
return popup_type_ != blink::WebPopupTypeNone;
}
void ImeSetComposition(
const CefString& text,
const std::vector<CefCompositionUnderline>& underlines,
const CefRange& replacement_range,
const CefRange& selection_range);
void ImeCommitText(const CefString& text,
const CefRange& replacement_range,
int relative_cursor_pos);
void ImeFinishComposingText(bool keep_selection);
void ImeCancelComposition();
void AddGuestHostView(CefRenderWidgetHostViewOSR* guest_host);
void RemoveGuestHostView(CefRenderWidgetHostViewOSR* guest_host);
// Register a callback that will be executed when |guest_host_view| receives
// OnSwapCompositorFrame. The callback triggers repaint of the embedder view.
void RegisterGuestViewFrameSwappedCallback(
content::RenderWidgetHostViewGuest* guest_host_view);
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;
}
void set_child_host_view(CefRenderWidgetHostViewOSR* popup_view) {
child_host_view_ = popup_view;
}
ui::Compositor* GetCompositor() const;
content::RenderWidgetHostImpl* render_widget_host() const
{ return render_widget_host_; }
ui::Layer* GetRootLayer() const;
private:
content::DelegatedFrameHost* GetDelegatedFrameHost() const;
void SetFrameRate();
void SetDeviceScaleFactor();
void ResizeRootLayer();
// Called by CefBeginFrameTimer to send a BeginFrame request.
void OnBeginFrameTimerTick();
void SendBeginFrame(base::TimeTicks frame_time,
base::TimeDelta vsync_period);
void CancelWidget();
void OnScrollOffsetChanged();
void OnGuestViewFrameSwapped(
content::RenderWidgetHostViewGuest* guest_host_view);
void InvalidateInternal(const gfx::Rect& bounds_in_pixels);
void RequestImeCompositionUpdate(bool start_monitoring);
#if defined(OS_MACOSX)
friend class MacHelper;
#endif
void PlatformCreateCompositorWidget();
void PlatformResizeCompositorWidget(const gfx::Size& size);
void PlatformDestroyCompositorWidget();
#if defined(USE_AURA)
ui::PlatformCursor GetPlatformCursor(blink::WebCursorInfo::Type type);
#endif
const bool transparent_;
float scale_factor_;
int frame_rate_threshold_ms_;
#if !defined(OS_MACOSX)
std::unique_ptr<ui::Compositor> compositor_;
gfx::AcceleratedWidget compositor_widget_;
std::unique_ptr<content::DelegatedFrameHost> delegated_frame_host_;
std::unique_ptr<ui::Layer> root_layer_;
#endif
#if defined(OS_WIN)
std::unique_ptr<gfx::WindowImpl> window_;
#elif defined(OS_MACOSX)
NSWindow* window_;
CALayer* background_layer_;
std::unique_ptr<content::BrowserCompositorMac> browser_compositor_;
MacHelper* mac_helper_;
#elif defined(USE_X11)
CefWindowX11* window_;
std::unique_ptr<ui::XScopedCursor> invisible_cursor_;
#endif
// Used to control the VSync rate in subprocesses when BeginFrame scheduling
// is enabled.
std::unique_ptr<CefBeginFrameTimer> begin_frame_timer_;
// Used for direct rendering from the compositor when GPU compositing is
// disabled. This object is owned by the compositor.
CefSoftwareOutputDeviceOSR* software_output_device_;
// Used for managing copy requests when GPU compositing is enabled.
std::unique_ptr<CefCopyFrameGenerator> copy_frame_generator_;
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_;
bool has_parent_;
CefRenderWidgetHostViewOSR* parent_host_view_;
CefRenderWidgetHostViewOSR* popup_host_view_;
CefRenderWidgetHostViewOSR* child_host_view_;
std::set<CefRenderWidgetHostViewOSR*> guest_host_views_;
CefRefPtr<CefBrowserHostImpl> browser_impl_;
bool is_showing_;
bool is_destroyed_;
gfx::Rect popup_position_;
// The last scroll offset of the view.
gfx::Vector2dF last_scroll_offset_;
bool is_scroll_offset_changed_pending_;
base::WeakPtrFactory<CefRenderWidgetHostViewOSR> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(CefRenderWidgetHostViewOSR);
};
#endif // CEF_LIBCEF_BROWSER_OSR_RENDER_WIDGET_HOST_VIEW_OSR_H_
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