ginebra2/ContentViews/ScrollableWebContentView.h
changeset 6 1c3b8676e58c
child 9 b39122337a00
equal deleted inserted replaced
5:0f2326c2a325 6:1c3b8676e58c
       
     1 /*
       
     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 *
       
     5 * This program is free software: you can redistribute it and/or modify
       
     6 * it under the terms of the GNU Lesser General Public License as published by
       
     7 * the Free Software Foundation, version 2.1 of the License.
       
     8 *
       
     9 * This program is distributed in the hope that it will be useful,
       
    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       
    12 * GNU Lesser General Public License for more details.
       
    13 *
       
    14 * You should have received a copy of the GNU Lesser General Public License
       
    15 * along with this program.  If not,
       
    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
       
    17 *
       
    18 * Description:
       
    19 *
       
    20 */
       
    21 
       
    22 #ifndef ScrollableWebContentView_h
       
    23 #define ScrollableWebContentView_h
       
    24 
       
    25 #include "Gestures/GestureEvent.h"
       
    26 #include "Gestures/GestureListener.h"
       
    27 #include "Gestures/GestureRecognizer.h"
       
    28 #include "ScrollableViewBase.h"
       
    29 #include "ZoomMetaData.h"
       
    30 
       
    31 #include <QPropertyAnimation>
       
    32 #include <QTimer>
       
    33 
       
    34 class QWebHitTestResult;
       
    35 
       
    36 namespace GVA {
       
    37 
       
    38 class ViewportMetaData;
       
    39 class WebContentAnimationItem;
       
    40 
       
    41 class ScrollableWebContentView : public ScrollableViewBase, protected GestureListener {
       
    42     Q_OBJECT
       
    43 public:
       
    44     ScrollableWebContentView(WebContentAnimationItem* viewportProxyWidget, QGraphicsItem* parent = 0);
       
    45     ~ScrollableWebContentView();
       
    46 
       
    47     WebContentAnimationItem* viewportWidget() const;
       
    48     void zoomToScreenCenter(bool zoomIn);
       
    49 
       
    50     ZoomMetaData currentPageInfo();
       
    51     void setCurrentPageInfo(ZoomMetaData data);
       
    52     ZoomMetaData defaultZoomData();
       
    53     void updatePreferredContentSize();
       
    54     void setSuperPage();
       
    55 
       
    56 Q_SIGNALS:
       
    57     void contextEventObject(QWebHitTestResult* eventTarget);
       
    58     void viewScrolled(QPoint& scrollPos, QPoint& delta);
       
    59 
       
    60 public Q_SLOTS:
       
    61     void reset();
       
    62     void contentsSizeChanged(const QSize&);
       
    63     void pageLoadFinished(bool);
       
    64 
       
    65 protected:
       
    66     bool sceneEventFilter(QGraphicsItem*, QEvent*);
       
    67 
       
    68     //From GestureListener
       
    69     void handleGesture(GestureEvent*);
       
    70 
       
    71     //Helpers
       
    72     void handlePress(GestureEvent*);
       
    73     void handleRelease(GestureEvent*);
       
    74     void handleFlick(GestureEvent*);
       
    75     void handleDoubleTap(GestureEvent*);
       
    76     void handlePan(GestureEvent*);
       
    77     void handleLongTap(GestureEvent*);
       
    78 
       
    79     void setViewportWidgetGeometry(const QRectF& r);
       
    80     void startZoomAnimToItemHotspot(const QPointF& hotspot, const QPointF& viewTargetHotspot, qreal scale, QRectF target = QRectF());
       
    81     bool isZoomedIn() const;
       
    82 
       
    83     //To handle kinetic scroller state changes
       
    84     void stateChanged(KineticScrollable::State oldState, KineticScrollable::State newState);
       
    85 
       
    86     void startZoomAnimation(const QRectF& zoomedRect);
       
    87     void stopZoomAnimation();
       
    88     void updateZoomEndRect();
       
    89     void resizeEvent(QGraphicsSceneResizeEvent* event);
       
    90     void adjustViewportSize(QSizeF oldSize, QSizeF newSize);
       
    91     void sendEventToWebKit(QEvent::Type type, QPointF& scenPos);
       
    92    
       
    93 protected Q_SLOTS:
       
    94     void zoomAnimationStateChanged(QAbstractAnimation::State newState, QAbstractAnimation::State);
       
    95 
       
    96 private:
       
    97     GestureRecognizer m_gestureRecognizer;
       
    98     QRectF m_animationEndRect;
       
    99     QPropertyAnimation* m_zoomAnimator;          //Animates zooming transitions
       
   100     ViewportMetaData* m_viewportMetaData;
       
   101     QTimer m_tileUpdateEnableTimer;
       
   102 }; //ScrollableWebContentView
       
   103 
       
   104 } //namespace GVA
       
   105 
       
   106 #endif //ScrollableWebContentView_h