/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtDeclarative module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** 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, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

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** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QDECLARATIVEWEBVIEW_H

#define QDECLARATIVEWEBVIEW_H

#include <qdeclarativeitem.h>

#include <QtGui/QAction>

#include <QtCore/QUrl>

#include <QtNetwork/qnetworkaccessmanager.h>

#include <QtWebKit/QWebPage>

#include <QtWebKit/QGraphicsWebView>

QT_BEGIN_HEADER

class QWebHistory;

class QWebSettings;

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QDeclarativeWebSettings;

class QDeclarativeWebViewPrivate;

class QNetworkRequest;

class QDeclarativeWebView;

class QDeclarativeWebViewPrivate;

class QDeclarativeWebPage : public QWebPage

{

    Q_OBJECT

public:

    explicit QDeclarativeWebPage(QDeclarativeWebView *parent);

    ~QDeclarativeWebPage();

protected:

    QWebPage *createWindow(WebWindowType type);

    void javaScriptConsoleMessage(const QString& message, int lineNumber, const QString& sourceID);

    QString chooseFile(QWebFrame *originatingFrame, const QString& oldFile);

    void javaScriptAlert(QWebFrame *originatingFrame, const QString& msg);

    bool javaScriptConfirm(QWebFrame *originatingFrame, const QString& msg);

    bool javaScriptPrompt(QWebFrame *originatingFrame, const QString& msg, const QString& defaultValue, QString* result);

private:

    QDeclarativeWebView *viewItem();

};

class QDeclarativeWebViewAttached;

//### TODO: browser plugins

class QDeclarativeWebView : public QDeclarativeItem

{

    Q_OBJECT

    Q_ENUMS(Status SelectionMode)

    Q_PROPERTY(QString title READ title NOTIFY titleChanged)

    Q_PROPERTY(QPixmap icon READ icon NOTIFY iconChanged)

    Q_PROPERTY(qreal zoomFactor READ zoomFactor WRITE setZoomFactor NOTIFY zoomFactorChanged)

    Q_PROPERTY(QString statusText READ statusText NOTIFY statusTextChanged)

    Q_PROPERTY(QString html READ html WRITE setHtml NOTIFY htmlChanged)

    Q_PROPERTY(int pressGrabTime READ pressGrabTime WRITE setPressGrabTime NOTIFY pressGrabTimeChanged)

    Q_PROPERTY(int preferredWidth READ preferredWidth WRITE setPreferredWidth NOTIFY preferredWidthChanged)

    Q_PROPERTY(int preferredHeight READ preferredHeight WRITE setPreferredHeight NOTIFY preferredHeightChanged)

    Q_PROPERTY(QUrl url READ url WRITE setUrl NOTIFY urlChanged)

    Q_PROPERTY(qreal progress READ progress NOTIFY progressChanged)

    Q_PROPERTY(Status status READ status NOTIFY statusChanged)

    Q_PROPERTY(QAction* reload READ reloadAction CONSTANT)

    Q_PROPERTY(QAction* back READ backAction CONSTANT)

    Q_PROPERTY(QAction* forward READ forwardAction CONSTANT)

    Q_PROPERTY(QAction* stop READ stopAction CONSTANT)

    Q_PROPERTY(QDeclarativeWebSettings* settings READ settingsObject CONSTANT)

    Q_PROPERTY(QDeclarativeListProperty<QObject> javaScriptWindowObjects READ javaScriptWindowObjects CONSTANT)

    Q_PROPERTY(QDeclarativeComponent* newWindowComponent READ newWindowComponent WRITE setNewWindowComponent NOTIFY newWindowComponentChanged)

    Q_PROPERTY(QDeclarativeItem* newWindowParent READ newWindowParent WRITE setNewWindowParent NOTIFY newWindowParentChanged)

    Q_PROPERTY(bool renderingEnabled READ renderingEnabled WRITE setRenderingEnabled NOTIFY renderingEnabledChanged)

    Q_PROPERTY(QSize contentsSize READ contentsSize NOTIFY contentsSizeChanged)

    Q_PROPERTY(qreal contentsScale READ contentsScale WRITE setContentsScale NOTIFY contentsScaleChanged)

public:

    QDeclarativeWebView(QDeclarativeItem *parent=0);

    ~QDeclarativeWebView();

    QUrl url() const;

    void setUrl(const QUrl &);

    QString title() const;

    QPixmap icon() const;

    qreal zoomFactor() const;

    void setZoomFactor(qreal);

    Q_INVOKABLE bool heuristicZoom(int clickX, int clickY, qreal maxzoom);

    QRect elementAreaAt(int x, int y, int minwidth, int minheight) const;

    int pressGrabTime() const;

    void setPressGrabTime(int);

    int preferredWidth() const;

    void setPreferredWidth(int);

    int preferredHeight() const;

    void setPreferredHeight(int);

    enum Status { Null, Ready, Loading, Error };

    Status status() const;

    qreal progress() const;

    QString statusText() const;

    QAction *reloadAction() const;

    QAction *backAction() const;

    QAction *forwardAction() const;

    QAction *stopAction() const;

    QWebPage *page() const;

    void setPage(QWebPage *page);

    void load(const QNetworkRequest &request,

              QNetworkAccessManager::Operation operation = QNetworkAccessManager::GetOperation,

              const QByteArray &body = QByteArray());

    QString html() const;

    void setHtml(const QString &html, const QUrl &baseUrl = QUrl());

    void setContent(const QByteArray &data, const QString &mimeType = QString(), const QUrl &baseUrl = QUrl());

    QWebHistory *history() const;

    QWebSettings *settings() const;

    QDeclarativeWebSettings *settingsObject() const;

    bool renderingEnabled() const;

    void setRenderingEnabled(bool);

    QDeclarativeListProperty<QObject> javaScriptWindowObjects();

    static QDeclarativeWebViewAttached *qmlAttachedProperties(QObject *);

    QDeclarativeComponent *newWindowComponent() const;

    void setNewWindowComponent(QDeclarativeComponent *newWindow);

    QDeclarativeItem *newWindowParent() const;

    void setNewWindowParent(QDeclarativeItem *newWindow);

    bool isComponentCompletePublic() const { return isComponentComplete(); }

    QSize contentsSize() const;

    void setContentsScale(qreal scale);

    qreal contentsScale() const;

Q_SIGNALS:

    void preferredWidthChanged();

    void preferredHeightChanged();

    void urlChanged();

    void progressChanged();

    void statusChanged(Status);

    void titleChanged(const QString&);

    void iconChanged();

    void statusTextChanged();

    void htmlChanged();

    void pressGrabTimeChanged();

    void zoomFactorChanged();

    void newWindowComponentChanged();

    void newWindowParentChanged();

    void renderingEnabledChanged();

    void contentsSizeChanged(const QSize&);

    void contentsScaleChanged();

    void loadStarted();

    void loadFinished();

    void loadFailed();

    void doubleClick(int clickX, int clickY);

    void zoomTo(qreal zoom, int centerX, int centerY);

    void alert(const QString& message);

public Q_SLOTS:

    QVariant evaluateJavaScript(const QString&);

private Q_SLOTS:

    void doLoadStarted();

    void doLoadProgress(int p);

    void doLoadFinished(bool ok);

    void setStatusText(const QString&);

    void windowObjectCleared();

    void pageUrlChanged();

    void initialLayout();

    void propagateFocusToWebPage(bool);

    void updateDeclarativeWebViewSize();

protected:

    void mousePressEvent(QGraphicsSceneMouseEvent *event);

    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);

    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);

    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);

    void timerEvent(QTimerEvent *event);

    void hoverMoveEvent (QGraphicsSceneHoverEvent * event);

    virtual void geometryChanged(const QRectF &newGeometry,

                                 const QRectF &oldGeometry);

    virtual bool sceneEvent(QEvent *event);

    QDeclarativeWebView *createWindow(QWebPage::WebWindowType type);

private:

    void updateContentsSize();

    void init();

    virtual void componentComplete();

    Q_DISABLE_COPY(QDeclarativeWebView)

    QDeclarativeWebViewPrivate* d;

    QMouseEvent *sceneMouseEventToMouseEvent(QGraphicsSceneMouseEvent *);

    QMouseEvent *sceneHoverMoveEventToMouseEvent(QGraphicsSceneHoverEvent *);

    friend class QDeclarativeWebPage;

};

class QDeclarativeWebViewAttached : public QObject

{

    Q_OBJECT

    Q_PROPERTY(QString windowObjectName READ windowObjectName WRITE setWindowObjectName)

public:

    QDeclarativeWebViewAttached(QObject *parent)

        : QObject(parent)

    {

    }

    QString windowObjectName() const

    {

        return m_windowObjectName;

    }

    void setWindowObjectName(const QString &n)

    {

        m_windowObjectName = n;

    }

private:

    QString m_windowObjectName;

};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativeWebView)

QML_DECLARE_TYPEINFO(QDeclarativeWebView, QML_HAS_ATTACHED_PROPERTIES)

QT_END_HEADER

#endif