gecko-dev/widget/src/qt/mozqwidget.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=4 et sw=4 tw=80: */
/* ***** 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 Nokia.
*
* The Initial Developer of the Original Code is Nokia Corporation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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 MOZQWIDGET_H
#define MOZQWIDGET_H
#include <QtGui/QApplication>
#include <QtGui/QGraphicsView>
#include <QtGui/QGraphicsWidget>
#include "nsIWidget.h"
#include "prenv.h"
#include "nsIObserverService.h"
#include "mozilla/Services.h"
#ifdef MOZ_ENABLE_QTMOBILITY
#include "mozqorientationsensorfilter.h"
#endif
#ifdef MOZ_ENABLE_MEEGOTOUCH
#include <QtGui/QGraphicsSceneResizeEvent>
#include <MSceneWindow>
#include <MScene>
#include <QTimer>
#include <MInputMethodState>
#include <MApplication>
#endif
class QEvent;
class QPixmap;
class QWidget;
class nsWindow;
class MozQWidget : public QGraphicsWidget
{
Q_OBJECT
public:
MozQWidget(nsWindow* aReceiver, QGraphicsItem *aParent);
~MozQWidget();
/**
* Mozilla helper.
*/
void setModal(bool);
2008-04-19 15:37:55 +00:00
bool SetCursor(nsCursor aCursor);
void dropReceiver() { mReceiver = 0x0; };
nsWindow* getReceiver() { return mReceiver; };
void activate();
void deactivate();
QVariant inputMethodQuery(Qt::InputMethodQuery aQuery) const;
/**
* VirtualKeyboardIntegration
*/
static void requestVKB(int aTimeout = 0, QObject* aWidget = 0);
static void hideVKB();
static bool isVKBOpen();
public slots:
static void showVKB();
#ifdef MOZ_ENABLE_QTMOBILITY
void orientationChanged();
#endif
protected:
virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent* aEvent);
virtual void dragEnterEvent(QGraphicsSceneDragDropEvent* aEvent);
virtual void dragLeaveEvent(QGraphicsSceneDragDropEvent* aEvent);
virtual void dragMoveEvent(QGraphicsSceneDragDropEvent* aEvent);
virtual void dropEvent(QGraphicsSceneDragDropEvent* aEvent);
virtual void focusInEvent(QFocusEvent* aEvent);
virtual void focusOutEvent(QFocusEvent* aEvent);
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent* aEvent);
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent* aEvent);
virtual void hoverMoveEvent(QGraphicsSceneHoverEvent* aEvent);
virtual void keyPressEvent(QKeyEvent* aEvent);
virtual void keyReleaseEvent(QKeyEvent* aEvent);
virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent* aEvent);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent* aEvent);
virtual void mousePressEvent(QGraphicsSceneMouseEvent* aEvent);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent* aEvent);
virtual void inputMethodEvent(QInputMethodEvent* aEvent);
virtual void wheelEvent(QGraphicsSceneWheelEvent* aEvent);
virtual void paint(QPainter* aPainter, const QStyleOptionGraphicsItem* aOption, QWidget* aWidget = 0);
virtual void resizeEvent(QGraphicsSceneResizeEvent* aEvent);
virtual void closeEvent(QCloseEvent* aEvent);
virtual void hideEvent(QHideEvent* aEvent);
virtual void showEvent(QShowEvent* aEvent);
virtual bool event(QEvent* aEvent);
bool SetCursor(const QPixmap& aPixmap, int, int);
private:
void sendPressReleaseKeyEvent(int key, const QChar* letter = 0, bool autorep = false, ushort count = 1);
nsWindow *mReceiver;
};
class MozQGraphicsViewEvents
{
public:
MozQGraphicsViewEvents(QGraphicsView* aView)
: mView(aView)
{ }
void handleEvent(QEvent* aEvent, MozQWidget* aTopLevel)
{
if (!aEvent)
return;
if (aEvent->type() == QEvent::WindowActivate) {
if (aTopLevel)
aTopLevel->activate();
}
if (aEvent->type() == QEvent::WindowDeactivate) {
if (aTopLevel)
aTopLevel->deactivate();
}
}
void handleResizeEvent(QResizeEvent* aEvent, MozQWidget* aTopLevel)
{
if (!aEvent)
return;
if (aTopLevel) {
// transfer new size to graphics widget
aTopLevel->setGeometry(0.0, 0.0,
static_cast<qreal>(aEvent->size().width()),
static_cast<qreal>(aEvent->size().height()));
// resize scene rect to vieport size,
// to avoid extra scrolling from QAbstractScrollable
if (mView)
mView->setSceneRect(mView->viewport()->rect());
}
}
bool handleCloseEvent(QCloseEvent* aEvent, MozQWidget* aTopLevel)
{
if (!aEvent)
return false;
if (aTopLevel) {
// close graphics widget instead, this view will be discarded
// automatically
QApplication::postEvent(aTopLevel, new QCloseEvent(*aEvent));
aEvent->ignore();
return true;
}
return false;
}
private:
QGraphicsView* mView;
};
/**
This is a helper class to synchronize the QGraphicsView window with
its contained QGraphicsWidget for things like resizing and closing
by the user.
*/
class MozQGraphicsView : public QGraphicsView
{
Q_OBJECT
public:
MozQGraphicsView(MozQWidget* aTopLevel, QWidget * aParent = nsnull)
: QGraphicsView (new QGraphicsScene(), aParent)
, mEventHandler(this)
, mTopLevelWidget(aTopLevel)
{
scene()->addItem(aTopLevel);
setMouseTracking(true);
setFrameShape(QFrame::NoFrame);
}
protected:
virtual bool event(QEvent* aEvent)
{
mEventHandler.handleEvent(aEvent, mTopLevelWidget);
return QGraphicsView::event(aEvent);
}
virtual void resizeEvent(QResizeEvent* aEvent)
{
mEventHandler.handleResizeEvent(aEvent, mTopLevelWidget);
QGraphicsView::resizeEvent(aEvent);
}
virtual void closeEvent (QCloseEvent* aEvent)
{
if (!mEventHandler.handleCloseEvent(aEvent, mTopLevelWidget))
QGraphicsView::closeEvent(aEvent);
}
private:
MozQGraphicsViewEvents mEventHandler;
MozQWidget* mTopLevelWidget;
};
#ifdef MOZ_ENABLE_MEEGOTOUCH
class MozMSceneWindow : public MSceneWindow
{
Q_OBJECT
public:
MozMSceneWindow(MozQWidget* aTopLevel)
: MSceneWindow(aTopLevel->parentItem())
, mTopLevelWidget(aTopLevel)
{
mTopLevelWidget->setParentItem(this);
mTopLevelWidget->installEventFilter(this);
MInputMethodState* inputMethodState = MInputMethodState::instance();
if (inputMethodState) {
connect(inputMethodState, SIGNAL(inputMethodAreaChanged(const QRect&)),
this, SLOT(VisibleScreenAreaChanged(const QRect&)));
}
}
protected:
virtual void resizeEvent(QGraphicsSceneResizeEvent* aEvent)
{
mCurrentSize = aEvent->newSize();
MSceneWindow::resizeEvent(aEvent);
CheckTopLevelSize();
}
virtual bool eventFilter(QObject* watched, QEvent* e)
{
if (e->type() == QEvent::GraphicsSceneResize ||
e->type() == QEvent::GraphicsSceneMove) {
//Do this in next event loop, or we are in recursion!
QTimer::singleShot(0, this, SLOT(CheckTopLevelSize()));
}
return false;
}
private slots:
void CheckTopLevelSize()
{
if (mTopLevelWidget) {
qreal xpos = 0;
qreal ypos = 0;
qreal width = mCurrentSize.width();
qreal height = mCurrentSize.height();
// transfer new size to graphics widget if changed
QRectF r = mTopLevelWidget->geometry();
if (r != QRectF(xpos, ypos, width, height)) {
mTopLevelWidget->setGeometry(xpos, ypos, width, height);
}
}
}
void VisibleScreenAreaChanged(const QRect& rect) {
if (mTopLevelWidget) {
QRegion region(scene()->views()[0]->rect());
region -= rect;
QRectF bounds = mapRectFromScene(region.boundingRect());
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (observerService) {
QString rect = QString("{\"left\": %1, \"top\": %2, \"right\": %3, \"bottom\": %4}")
.arg(bounds.x()).arg(bounds.y()).arg(bounds.width()).arg(bounds.height());
observerService->NotifyObservers(nsnull, "softkb-change", rect.utf16());
}
}
}
private:
MozQWidget* mTopLevelWidget;
QSizeF mCurrentSize;
};
/**
This is a helper class to synchronize the MWindow window with
its contained QGraphicsWidget for things like resizing and closing
by the user.
*/
class MozMGraphicsView : public MWindow
{
Q_OBJECT
public:
MozMGraphicsView(MozQWidget* aTopLevel, QWidget* aParent = nsnull)
: MWindow(aParent)
, mEventHandler(this)
, mTopLevelWidget(aTopLevel)
{
MozMSceneWindow* page = new MozMSceneWindow(aTopLevel);
page->appear(this);
QObject::connect(this, SIGNAL(switcherEntered()), this, SLOT(onSwitcherEntered()));
QObject::connect(this, SIGNAL(switcherExited()), this, SLOT(onSwitcherExited()));
}
public Q_SLOTS:
void onSwitcherEntered() {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (!os)
return;
os->NotifyObservers(nsnull, "application-background", nsnull);
}
void onSwitcherExited() {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (!os)
return;
os->NotifyObservers(nsnull, "application-foreground", nsnull);
}
protected:
virtual bool event(QEvent* aEvent) {
mEventHandler.handleEvent(aEvent, mTopLevelWidget);
return MWindow::event(aEvent);
}
virtual void resizeEvent(QResizeEvent* aEvent)
{
setSceneRect(viewport()->rect());
MWindow::resizeEvent(aEvent);
}
virtual void closeEvent (QCloseEvent* aEvent)
{
if (!mEventHandler.handleCloseEvent(aEvent, mTopLevelWidget)) {
MWindow::closeEvent(aEvent);
}
}
private:
MozQGraphicsViewEvents mEventHandler;
MozQWidget* mTopLevelWidget;
};
#endif /* MOZ_ENABLE_MEEGOTOUCH */
#endif