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gecko-dev/widget/qt/nsWindow.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Christopher Blizzard
* <blizzard@mozilla.org>. Portions created by the Initial Developer
* are Copyright (C) 2001 the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Masayuki Nakano <masayuki@d-toybox.com>
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __nsWindow_h__
#define __nsWindow_h__
#include <QKeyEvent>
#include <qgraphicswidget.h>
#include <QTime>
#include "nsAutoPtr.h"
#include "nsBaseWidget.h"
#include "nsGUIEvent.h"
#include "nsWeakReference.h"
#include "nsGkAtoms.h"
#ifdef MOZ_LOGGING
// make sure that logging is enabled before including prlog.h
#define FORCE_PR_LOG
#include "prlog.h"
#include "nsTArray.h"
extern PRLogModuleInfo *gWidgetLog;
extern PRLogModuleInfo *gWidgetFocusLog;
extern PRLogModuleInfo *gWidgetIMLog;
extern PRLogModuleInfo *gWidgetDrawLog;
#define LOG(args) PR_LOG(gWidgetLog, 4, args)
#define LOGFOCUS(args) PR_LOG(gWidgetFocusLog, 4, args)
#define LOGIM(args) PR_LOG(gWidgetIMLog, 4, args)
#define LOGDRAW(args) PR_LOG(gWidgetDrawLog, 4, args)
#else
#ifdef DEBUG_WIDGETS
#define PR_LOG2(_args) \
PR_BEGIN_MACRO \
qDebug _args; \
PR_END_MACRO
#define LOG(args) PR_LOG2(args)
#define LOGFOCUS(args) PR_LOG2(args)
#define LOGIM(args) PR_LOG2(args)
#define LOGDRAW(args) PR_LOG2(args)
#else
#define LOG(args)
#define LOGFOCUS(args)
#define LOGIM(args)
#define LOGDRAW(args)
#endif
#endif /* MOZ_LOGGING */
class QEvent;
class QGraphicsView;
class MozQWidget;
class nsIdleService;
class nsWindow : public nsBaseWidget,
public nsSupportsWeakReference
{
public:
nsWindow();
virtual ~nsWindow();
nsEventStatus DoPaint( QPainter* aPainter, const QStyleOptionGraphicsItem * aOption, QWidget* aWidget);
static void ReleaseGlobals();
NS_DECL_ISUPPORTS_INHERITED
//
// nsIWidget
//
NS_IMETHOD ConfigureChildren(const nsTArray<nsIWidget::Configuration>&);
NS_IMETHOD Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext,
nsWidgetInitData *aInitData);
virtual already_AddRefed<nsIWidget>
CreateChild(const nsIntRect& aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext* aContext,
nsWidgetInitData* aInitData = nsnull,
bool aForceUseIWidgetParent = true);
NS_IMETHOD Destroy(void);
NS_IMETHOD SetParent(nsIWidget* aNewParent);
virtual nsIWidget *GetParent(void);
virtual float GetDPI();
NS_IMETHOD Show(bool aState);
NS_IMETHOD SetModal(bool aModal);
NS_IMETHOD IsVisible(bool & aState);
NS_IMETHOD ConstrainPosition(bool aAllowSlop,
PRInt32 *aX,
PRInt32 *aY);
NS_IMETHOD Move(PRInt32 aX,
PRInt32 aY);
NS_IMETHOD Resize(PRInt32 aWidth,
PRInt32 aHeight,
bool aRepaint);
NS_IMETHOD Resize(PRInt32 aX,
PRInt32 aY,
PRInt32 aWidth,
PRInt32 aHeight,
bool aRepaint);
NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
nsIWidget *aWidget,
bool aActivate);
NS_IMETHOD SetSizeMode(PRInt32 aMode);
NS_IMETHOD Enable(bool aState);
NS_IMETHOD SetFocus(bool aRaise = false);
NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
NS_IMETHOD SetForegroundColor(const nscolor &aColor);
NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
NS_IMETHOD SetCursor(nsCursor aCursor);
NS_IMETHOD SetCursor(imgIContainer* aCursor,
PRUint32 aHotspotX, PRUint32 aHotspotY);
NS_IMETHOD SetHasTransparentBackground(bool aTransparent);
NS_IMETHOD GetHasTransparentBackground(bool& aTransparent);
NS_IMETHOD HideWindowChrome(bool aShouldHide);
NS_IMETHOD MakeFullScreen(bool aFullScreen);
NS_IMETHOD Invalidate(const nsIntRect &aRect);
virtual void* GetNativeData(PRUint32 aDataType);
NS_IMETHOD SetTitle(const nsAString& aTitle);
NS_IMETHOD SetIcon(const nsAString& aIconSpec);
virtual nsIntPoint WidgetToScreenOffset();
NS_IMETHOD DispatchEvent(nsGUIEvent *aEvent, nsEventStatus &aStatus);
NS_IMETHOD EnableDragDrop(bool aEnable);
NS_IMETHOD CaptureMouse(bool aCapture);
NS_IMETHOD CaptureRollupEvents(nsIRollupListener *aListener,
bool aDoCapture,
bool aConsumeRollupEvent);
NS_IMETHOD SetWindowClass(const nsAString& xulWinType);
NS_IMETHOD GetAttention(PRInt32 aCycleCount);
NS_IMETHOD BeginResizeDrag (nsGUIEvent* aEvent, PRInt32 aHorizontal, PRInt32 aVertical);
NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
const InputContextAction& aAction);
NS_IMETHOD_(InputContext) GetInputContext();
//
// utility methods
//
void QWidgetDestroyed();
/***** from CommonWidget *****/
// event handling code
void DispatchActivateEvent(void);
void DispatchDeactivateEvent(void);
void DispatchActivateEventOnTopLevelWindow(void);
void DispatchDeactivateEventOnTopLevelWindow(void);
void DispatchResizeEvent(nsIntRect &aRect, nsEventStatus &aStatus);
nsEventStatus DispatchEvent(nsGUIEvent *aEvent) {
nsEventStatus status;
DispatchEvent(aEvent, status);
return status;
}
// Some of the nsIWidget methods
NS_IMETHOD IsEnabled (bool *aState);
// called when we are destroyed
void OnDestroy(void);
// called to check and see if a widget's dimensions are sane
bool AreBoundsSane(void);
NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
QWidget* GetViewWidget();
virtual PRUint32 GetGLFrameBufferFormat() MOZ_OVERRIDE;
protected:
nsCOMPtr<nsIWidget> mParent;
// Is this a toplevel window?
bool mIsTopLevel;
// Has this widget been destroyed yet?
bool mIsDestroyed;
// This flag tracks if we're hidden or shown.
bool mIsShown;
// is this widget enabled?
bool mEnabled;
// Has anyone set an x/y location for this widget yet? Toplevels
// shouldn't be automatically set to 0,0 for first show.
bool mPlaced;
// Remember the last sizemode so that we can restore it when
// leaving fullscreen
nsSizeMode mLastSizeMode;
InputContext mInputContext;
/**
* Event handlers (proxied from the actual qwidget).
* They follow normal Qt widget semantics.
*/
void Initialize(MozQWidget *widget);
friend class nsQtEventDispatcher;
friend class InterceptContainer;
friend class MozQWidget;
virtual nsEventStatus OnMoveEvent(QGraphicsSceneHoverEvent *);
virtual nsEventStatus OnResizeEvent(QGraphicsSceneResizeEvent *);
virtual nsEventStatus OnCloseEvent(QCloseEvent *);
virtual nsEventStatus OnEnterNotifyEvent(QGraphicsSceneHoverEvent *);
virtual nsEventStatus OnLeaveNotifyEvent(QGraphicsSceneHoverEvent *);
virtual nsEventStatus OnMotionNotifyEvent(QPointF, Qt::KeyboardModifiers);
virtual nsEventStatus OnButtonPressEvent(QGraphicsSceneMouseEvent *);
virtual nsEventStatus OnButtonReleaseEvent(QGraphicsSceneMouseEvent *);
virtual nsEventStatus OnMouseDoubleClickEvent(QGraphicsSceneMouseEvent *);
virtual nsEventStatus OnFocusInEvent(QEvent *);
virtual nsEventStatus OnFocusOutEvent(QEvent *);
virtual nsEventStatus OnKeyPressEvent(QKeyEvent *);
virtual nsEventStatus OnKeyReleaseEvent(QKeyEvent *);
virtual nsEventStatus OnScrollEvent(QGraphicsSceneWheelEvent *);
virtual nsEventStatus contextMenuEvent(QGraphicsSceneContextMenuEvent *);
virtual nsEventStatus imComposeEvent(QInputMethodEvent *, bool &handled);
virtual nsEventStatus OnDragEnter (QGraphicsSceneDragDropEvent *);
virtual nsEventStatus OnDragMotionEvent(QGraphicsSceneDragDropEvent *);
virtual nsEventStatus OnDragLeaveEvent(QGraphicsSceneDragDropEvent *);
virtual nsEventStatus OnDragDropEvent (QGraphicsSceneDragDropEvent *);
virtual nsEventStatus showEvent(QShowEvent *);
virtual nsEventStatus hideEvent(QHideEvent *);
//Gestures are only supported in qt > 4.6
#if (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
virtual nsEventStatus OnTouchEvent(QTouchEvent *event, bool &handled);
virtual nsEventStatus OnGestureEvent(QGestureEvent *event, bool &handled);
nsEventStatus DispatchGestureEvent(PRUint32 aMsg, PRUint32 aDirection,
double aDelta, const nsIntPoint& aRefPoint);
double DistanceBetweenPoints(const QPointF &aFirstPoint, const QPointF &aSecondPoint);
#endif
void NativeResize(PRInt32 aWidth,
PRInt32 aHeight,
bool aRepaint);
void NativeResize(PRInt32 aX,
PRInt32 aY,
PRInt32 aWidth,
PRInt32 aHeight,
bool aRepaint);
void NativeShow (bool aAction);
enum PluginType {
PluginType_NONE = 0, /* do not have any plugin */
PluginType_XEMBED, /* the plugin support xembed */
PluginType_NONXEMBED /* the plugin does not support xembed */
};
void SetPluginType(PluginType aPluginType);
void ThemeChanged(void);
gfxASurface* GetThebesSurface();
private:
typedef struct {
QPointF centerPoint;
QPointF touchPoint;
double delta;
bool needDispatch;
double startDistance;
double prevDistance;
} MozCachedTouchEvent;
typedef struct {
QPointF pos;
Qt::KeyboardModifiers modifiers;
bool needDispatch;
} MozCachedMoveEvent;
void* SetupPluginPort(void);
nsresult SetWindowIconList(const nsTArray<nsCString> &aIconList);
void SetDefaultIcon(void);
void InitButtonEvent(nsMouseEvent &event, QGraphicsSceneMouseEvent *aEvent, int aClickCount = 1);
nsEventStatus DispatchCommandEvent(nsIAtom* aCommand);
nsEventStatus DispatchContentCommandEvent(PRInt32 aMsg);
MozQWidget* createQWidget(MozQWidget* parent,
nsNativeWidget nativeParent,
nsWidgetInitData* aInitData);
void SetSoftwareKeyboardState(bool aOpen, const InputContextAction& aAction);
MozQWidget* mWidget;
PRUint32 mIsVisible : 1,
mActivatePending : 1;
PRInt32 mSizeState;
PluginType mPluginType;
nsRefPtr<gfxASurface> mThebesSurface;
nsCOMPtr<nsIdleService> mIdleService;
bool mIsTransparent;
// all of our DND stuff
// this is the last window that had a drag event happen on it.
void InitDragEvent (nsMouseEvent &aEvent);
// this is everything we need to be able to fire motion events
// repeatedly
PRUint32 mKeyDownFlags[8];
/* Helper methods for DOM Key Down event suppression. */
PRUint32* GetFlagWord32(PRUint32 aKeyCode, PRUint32* aMask) {
/* Mozilla DOM Virtual Key Code is from 0 to 224. */
NS_ASSERTION((aKeyCode <= 0xFF), "Invalid DOM Key Code");
aKeyCode &= 0xFF;
/* 32 = 2^5 = 0x20 */
*aMask = PRUint32(1) << (aKeyCode & 0x1F);
return &mKeyDownFlags[(aKeyCode >> 5)];
}
bool IsKeyDown(PRUint32 aKeyCode) {
PRUint32 mask;
PRUint32* flag = GetFlagWord32(aKeyCode, &mask);
return ((*flag) & mask) != 0;
}
void SetKeyDownFlag(PRUint32 aKeyCode) {
PRUint32 mask;
PRUint32* flag = GetFlagWord32(aKeyCode, &mask);
*flag |= mask;
}
void ClearKeyDownFlag(PRUint32 aKeyCode) {
PRUint32 mask;
PRUint32* flag = GetFlagWord32(aKeyCode, &mask);
*flag &= ~mask;
}
PRInt32 mQCursor;
// Call this function when the users activity is the direct cause of an
// event (like a keypress or mouse click).
void UserActivity();
inline void ProcessMotionEvent() {
if (mPinchEvent.needDispatch) {
double distance = DistanceBetweenPoints(mPinchEvent.centerPoint, mPinchEvent.touchPoint);
distance *= 2;
mPinchEvent.delta = distance - mPinchEvent.prevDistance;
nsIntPoint centerPoint(mPinchEvent.centerPoint.x(), mPinchEvent.centerPoint.y());
DispatchGestureEvent(NS_SIMPLE_GESTURE_MAGNIFY_UPDATE,
0, mPinchEvent.delta, centerPoint);
mPinchEvent.prevDistance = distance;
}
if (mMoveEvent.needDispatch) {
nsMouseEvent event(true, NS_MOUSE_MOVE, this, nsMouseEvent::eReal);
event.refPoint.x = nscoord(mMoveEvent.pos.x());
event.refPoint.y = nscoord(mMoveEvent.pos.y());
event.isShift = ((mMoveEvent.modifiers & Qt::ShiftModifier) != 0);
event.isControl = ((mMoveEvent.modifiers & Qt::ControlModifier) != 0);
event.isAlt = ((mMoveEvent.modifiers & Qt::AltModifier) != 0);
event.isMeta = ((mMoveEvent.modifiers & Qt::MetaModifier) != 0);
event.clickCount = 0;
DispatchEvent(&event);
mMoveEvent.needDispatch = false;
}
mTimerStarted = false;
}
void DispatchMotionToMainThread() {
if (!mTimerStarted) {
nsCOMPtr<nsIRunnable> event =
NS_NewRunnableMethod(this, &nsWindow::ProcessMotionEvent);
NS_DispatchToMainThread(event);
mTimerStarted = true;
}
}
// Remember dirty area caused by ::Scroll
QRegion mDirtyScrollArea;
#if (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
QTime mLastMultiTouchTime;
#endif
bool mNeedsResize;
bool mNeedsMove;
bool mListenForResizes;
bool mNeedsShow;
bool mGesturesCancelled;
MozCachedTouchEvent mPinchEvent;
MozCachedMoveEvent mMoveEvent;
bool mTimerStarted;
};
class nsChildWindow : public nsWindow
{
public:
nsChildWindow();
~nsChildWindow();
PRInt32 mChildID;
};
class nsPopupWindow : public nsWindow
{
public:
nsPopupWindow ();
~nsPopupWindow ();
PRInt32 mChildID;
};
#endif /* __nsWindow_h__ */
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