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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebEngine module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef RENDER_WIDGET_HOST_VIEW_QT_H
#define RENDER_WIDGET_HOST_VIEW_QT_H
#include "render_widget_host_view_qt_delegate.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "cc/resources/transferable_resource.h"
#include "content/browser/accessibility/browser_accessibility_manager.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "delegated_frame_node.h"
#include "ui/events/gestures/gesture_recognizer.h"
#include "ui/events/gestures/gesture_types.h"
#include <QMap>
#include <QPoint>
#include <QRect>
#include <QtGlobal>
QT_BEGIN_NAMESPACE
class QEvent;
class QFocusEvent;
class QHoverEvent;
class QKeyEvent;
class QMouseEvent;
class QTouchEvent;
class QVariant;
class QWheelEvent;
class QAccessibleInterface;
QT_END_NAMESPACE
class WebContentsAdapterClient;
struct MultipleMouseClickHelper
{
QPoint lastPressPosition;
Qt::MouseButton lastPressButton;
int clickCounter;
ulong lastPressTimestamp;
MultipleMouseClickHelper()
: lastPressPosition(QPoint())
, lastPressButton(Qt::NoButton)
, clickCounter(0)
, lastPressTimestamp(0)
{
}
};
class RenderWidgetHostViewQt
: public content::RenderWidgetHostViewBase
, public ui::GestureConsumer
, public ui::GestureEventHelper
, public RenderWidgetHostViewQtDelegateClient
, public content::BrowserAccessibilityDelegate
, public base::SupportsWeakPtr<RenderWidgetHostViewQt>
{
public:
RenderWidgetHostViewQt(content::RenderWidgetHost* widget);
~RenderWidgetHostViewQt();
void setDelegate(RenderWidgetHostViewQtDelegate *delegate);
void setAdapterClient(WebContentsAdapterClient *adapterClient);
virtual content::BackingStore *AllocBackingStore(const gfx::Size &size) Q_DECL_OVERRIDE;
virtual void InitAsChild(gfx::NativeView) Q_DECL_OVERRIDE;
virtual void InitAsPopup(content::RenderWidgetHostView*, const gfx::Rect&) Q_DECL_OVERRIDE;
virtual void InitAsFullscreen(content::RenderWidgetHostView*) Q_DECL_OVERRIDE;
virtual content::RenderWidgetHost* GetRenderWidgetHost() const Q_DECL_OVERRIDE;
virtual void SetSize(const gfx::Size& size) Q_DECL_OVERRIDE;
virtual void SetBounds(const gfx::Rect& rect) Q_DECL_OVERRIDE;
virtual gfx::Size GetPhysicalBackingSize() const Q_DECL_OVERRIDE;
virtual gfx::NativeView GetNativeView() const Q_DECL_OVERRIDE;
virtual gfx::NativeViewId GetNativeViewId() const Q_DECL_OVERRIDE;
virtual gfx::NativeViewAccessible GetNativeViewAccessible() Q_DECL_OVERRIDE;
virtual void Focus() Q_DECL_OVERRIDE;
virtual bool HasFocus() const Q_DECL_OVERRIDE;
virtual bool IsSurfaceAvailableForCopy() const Q_DECL_OVERRIDE;
virtual void Show() Q_DECL_OVERRIDE;
virtual void Hide() Q_DECL_OVERRIDE;
virtual bool IsShowing() Q_DECL_OVERRIDE;
virtual gfx::Rect GetViewBounds() const Q_DECL_OVERRIDE;
virtual void SetBackground(const SkBitmap& background) Q_DECL_OVERRIDE;
virtual bool LockMouse() Q_DECL_OVERRIDE;
virtual void UnlockMouse() Q_DECL_OVERRIDE;
virtual void WasShown() Q_DECL_OVERRIDE;
virtual void WasHidden() Q_DECL_OVERRIDE;
virtual void MovePluginWindows(const gfx::Vector2d&, const std::vector<content::WebPluginGeometry>&) Q_DECL_OVERRIDE;
virtual void Blur() Q_DECL_OVERRIDE;
virtual void UpdateCursor(const WebCursor&) Q_DECL_OVERRIDE;
virtual void SetIsLoading(bool) Q_DECL_OVERRIDE;
virtual void TextInputTypeChanged(ui::TextInputType, ui::TextInputMode, bool) Q_DECL_OVERRIDE;
virtual void ImeCancelComposition() Q_DECL_OVERRIDE;
virtual void ImeCompositionRangeChanged(const gfx::Range&, const std::vector<gfx::Rect>&) Q_DECL_OVERRIDE;
virtual void DidUpdateBackingStore(const gfx::Rect& scroll_rect, const gfx::Vector2d& scroll_delta, const std::vector<gfx::Rect>& copy_rects, const ui::LatencyInfo&) Q_DECL_OVERRIDE;
virtual void RenderProcessGone(base::TerminationStatus, int) Q_DECL_OVERRIDE;
virtual void Destroy() Q_DECL_OVERRIDE;
virtual void SetTooltipText(const base::string16 &tooltip_text) Q_DECL_OVERRIDE;
virtual void SelectionBoundsChanged(const ViewHostMsg_SelectionBounds_Params&) Q_DECL_OVERRIDE;
virtual void ScrollOffsetChanged() Q_DECL_OVERRIDE;
virtual void CopyFromCompositingSurface(const gfx::Rect& src_subrect, const gfx::Size& /* dst_size */, const base::Callback<void(bool, const SkBitmap&)>& callback) Q_DECL_OVERRIDE;
virtual void CopyFromCompositingSurfaceToVideoFrame(const gfx::Rect& src_subrect, const scoped_refptr<media::VideoFrame>& target, const base::Callback<void(bool)>& callback) Q_DECL_OVERRIDE;
virtual bool CanCopyToVideoFrame() const Q_DECL_OVERRIDE;
virtual void OnAcceleratedCompositingStateChange() Q_DECL_OVERRIDE;
virtual void AcceleratedSurfaceInitialized(int host_id, int route_id) Q_DECL_OVERRIDE;
virtual void AcceleratedSurfaceBuffersSwapped(const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params, int gpu_host_id) Q_DECL_OVERRIDE;
virtual void AcceleratedSurfacePostSubBuffer(const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params, int gpu_host_id) Q_DECL_OVERRIDE;
virtual void AcceleratedSurfaceSuspend() Q_DECL_OVERRIDE;
virtual void AcceleratedSurfaceRelease() Q_DECL_OVERRIDE;
virtual bool HasAcceleratedSurface(const gfx::Size&) Q_DECL_OVERRIDE;
virtual void OnSwapCompositorFrame(uint32 output_surface_id, scoped_ptr<cc::CompositorFrame> frame) Q_DECL_OVERRIDE;
virtual void GetScreenInfo(blink::WebScreenInfo* results) Q_DECL_OVERRIDE;
virtual gfx::Rect GetBoundsInRootWindow() Q_DECL_OVERRIDE;
virtual gfx::GLSurfaceHandle GetCompositingSurface() Q_DECL_OVERRIDE;
virtual void SetHasHorizontalScrollbar(bool) Q_DECL_OVERRIDE;
virtual void SetScrollOffsetPinning(bool, bool) Q_DECL_OVERRIDE;
virtual void OnAccessibilityEvents(const std::vector<AccessibilityHostMsg_EventParams>&) Q_DECL_OVERRIDE;
virtual void ProcessAckedTouchEvent(const content::TouchEventWithLatencyInfo &touch, content::InputEventAckState ack_result) Q_DECL_OVERRIDE;
// Overridden from RenderWidgetHostViewBase.
virtual void SelectionChanged(const base::string16 &text, size_t offset, const gfx::Range &range) Q_DECL_OVERRIDE;
// Overridden from ui::GestureEventHelper.
virtual bool CanDispatchToConsumer(ui::GestureConsumer*) Q_DECL_OVERRIDE;
virtual void DispatchPostponedGestureEvent(ui::GestureEvent*) Q_DECL_OVERRIDE;
virtual void DispatchCancelTouchEvent(ui::TouchEvent*) Q_DECL_OVERRIDE;
// Overridden from RenderWidgetHostViewQtDelegateClient.
virtual QSGNode *updatePaintNode(QSGNode *, QSGRenderContext *) Q_DECL_OVERRIDE;
virtual void notifyResize() Q_DECL_OVERRIDE;
virtual bool forwardEvent(QEvent *) Q_DECL_OVERRIDE;
virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const Q_DECL_OVERRIDE;
virtual void windowChanged() Q_DECL_OVERRIDE;
void handleMouseEvent(QMouseEvent*);
void handleKeyEvent(QKeyEvent*);
void handleWheelEvent(QWheelEvent*);
void handleTouchEvent(QTouchEvent*);
void handleHoverEvent(QHoverEvent*);
void handleFocusEvent(QFocusEvent*);
void handleInputMethodEvent(QInputMethodEvent*);
#if defined(OS_MACOSX)
virtual void SetTakesFocusOnlyOnMouseDown(bool flag) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void SetActive(bool active) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual bool IsSpeaking() const Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED; return false; }
virtual void SpeakSelection() Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual bool PostProcessEventForPluginIme(const content::NativeWebKeyboardEvent& event) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED; return false; }
virtual void AboutToWaitForBackingStoreMsg() Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void StopSpeaking() Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void SetWindowVisibility(bool visible) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual bool SupportsSpeech() const Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED; return false; }
virtual void ShowDefinitionForSelection() Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void WindowFrameChanged() Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
#endif // defined(OS_MACOSX)
#if defined(OS_ANDROID)
virtual void ShowDisambiguationPopup(const gfx::Rect&, const SkBitmap&) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void HasTouchEventHandlers(bool) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
#endif // defined(OS_ANDROID)
#if defined(OS_WIN)
#if defined(USE_AURA)
virtual void SetParentNativeViewAccessible(gfx::NativeViewAccessible accessible_parent) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual gfx::NativeViewId GetParentForWindowlessPlugin() const Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED return gfx::NativeViewId(); }
#else
virtual void SetClickthroughRegion(SkRegion *) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
virtual void WillWmDestroy(void) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
#endif // defined(USE_AURA)
#endif // defined(OS_WIN)
// Overridden from content::BrowserAccessibilityDelegate
virtual void SetAccessibilityFocus(int acc_obj_id) Q_DECL_OVERRIDE;
virtual void AccessibilityDoDefaultAction(int acc_obj_id) Q_DECL_OVERRIDE;
virtual void AccessibilityScrollToMakeVisible(int acc_obj_id, gfx::Rect subfocus) Q_DECL_OVERRIDE;
virtual void AccessibilityScrollToPoint(int acc_obj_id, gfx::Point point) Q_DECL_OVERRIDE;
virtual void AccessibilitySetTextSelection(int acc_obj_id, int start_offset, int end_offset) Q_DECL_OVERRIDE;
virtual gfx::Point GetLastTouchEventLocation() const Q_DECL_OVERRIDE;
virtual void FatalAccessibilityTreeError() Q_DECL_OVERRIDE;
QAccessibleInterface *GetQtAccessible();
private:
void sendDelegatedFrameAck();
void Paint(const gfx::Rect& damage_rect);
void ProcessGestures(ui::GestureRecognizer::Gestures *gestures);
void ForwardGestureEventToRenderer(ui::GestureEvent* gesture);
int GetMappedTouch(int qtTouchId);
void RemoveExpiredMappings(QTouchEvent *ev);
float dpiScale() const;
bool IsPopup() const;
void CreateBrowserAccessibilityManagerIfNeeded();
content::RenderWidgetHostImpl *m_host;
scoped_ptr<ui::GestureRecognizer> m_gestureRecognizer;
base::TimeDelta m_eventsToNowDelta;
QMap<int, int> m_touchIdMapping;
blink::WebTouchEvent m_accumTouchEvent;
scoped_ptr<RenderWidgetHostViewQtDelegate> m_delegate;
QExplicitlySharedDataPointer<DelegatedFrameNodeData> m_frameNodeData;
cc::ReturnedResourceArray m_resourcesToRelease;
bool m_needsDelegatedFrameAck;
uint32 m_pendingOutputSurfaceId;
WebContentsAdapterClient *m_adapterClient;
MultipleMouseClickHelper m_clickHelper;
ui::TextInputType m_currentInputType;
QRect m_cursorRect;
size_t m_anchorPositionWithinSelection;
size_t m_cursorPositionWithinSelection;
bool m_initPending;
};
#endif // RENDER_WIDGET_HOST_VIEW_QT_H
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