File: khtml_ext.h

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/* This file is part of the KDE project
 *
 * Copyright (C) 2000-2003 Simon Hausmann <hausmann@kde.org>
 *               2001-2003 George Staikos <staikos@kde.org>
 *               2001-2003 Laurent Montel <montel@kde.org>
 *               2001-2003 Dirk Mueller <mueller@kde.org>
 *               2001-2003 Waldo Bastian <bastian@kde.org>
 *               2001-2003 David Faure <faure@kde.org>
 *               2001-2003 Daniel Naber <dnaber@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __khtml_ext_h__
#define __khtml_ext_h__

#include "khtml_part.h"

#include <QPointer>

#include <kselectaction.h>
#include <kparts/textextension.h>
#include <kparts/htmlextension.h>
#include <kparts/selectorinterface.h>
#include <kparts/htmlsettingsinterface.h>
#include <kio/global.h>

/**
 * This is the BrowserExtension for a KHTMLPart document. Please see the KParts documentation for
 * more information about the BrowserExtension.
 */
class KHTMLPartBrowserExtension : public KParts::BrowserExtension
{
    Q_OBJECT
    friend class KHTMLPart;
    friend class KHTMLView;
public:
    KHTMLPartBrowserExtension(KHTMLPart *parent);

    int xOffset() override;
    int yOffset() override;

    void saveState(QDataStream &stream) override;
    void restoreState(QDataStream &stream) override;

    // internal
    void editableWidgetFocused(QWidget *widget);
    void editableWidgetBlurred(QWidget *widget);

    void setExtensionProxy(KParts::BrowserExtension *proxyExtension);

public Q_SLOTS:
    void cut();
    void copy();
    void paste();
    void searchProvider();
    void reparseConfiguration();
    void print();
    void disableScrolling();

    // internal . updates the state of the cut/copt/paste action based
    // on whether data is available in the clipboard
    void updateEditActions();

private Q_SLOTS:
    // connected to a frame's browserextensions enableAction signal
    void extensionProxyActionEnabled(const char *action, bool enable);
    void extensionProxyEditableWidgetFocused();
    void extensionProxyEditableWidgetBlurred();

Q_SIGNALS:
    void editableWidgetFocused();
    void editableWidgetBlurred();
private:
    void callExtensionProxyMethod(const char *method);

    KHTMLPart *m_part;
    QPointer<QWidget> m_editableFormWidget;
    QPointer<KParts::BrowserExtension> m_extensionProxy;
    bool m_connectedToClipboard;
};

class KHTMLPartBrowserHostExtension : public KParts::BrowserHostExtension
{
public:
    KHTMLPartBrowserHostExtension(KHTMLPart *part);
    virtual ~KHTMLPartBrowserHostExtension();

    QStringList frameNames() const override;

    const QList<KParts::ReadOnlyPart *> frames() const override;

    BrowserHostExtension *findFrameParent(KParts::ReadOnlyPart *callingPart, const QString &frame) override;

    bool openUrlInFrame(const QUrl &url, const KParts::OpenUrlArguments &arguments, const KParts::BrowserArguments &browserArguments) override;

private:
    KHTMLPart *m_part;
};

/**
 * @internal
 * INTERNAL class. *NOT* part of the public API.
 */
class KHTMLPopupGUIClient : public QObject
{
    Q_OBJECT
public:
    KHTMLPopupGUIClient(KHTMLPart *khtml, const QUrl &url);
    virtual ~KHTMLPopupGUIClient();

    KParts::BrowserExtension::ActionGroupMap actionGroups() const;

    static void saveURL(QWidget *parent, const QString &caption, const QUrl &url,
                        const QMap<QString, QString> &metaData = KIO::MetaData(),
                        const QString &filter = QString(), long cacheId = 0,
                        const QString &suggestedFilename = QString());

    static void saveURL(QWidget *parent, const QUrl &url, const QUrl &destination,
                        const QMap<QString, QString> &metaData = KIO::MetaData(),
                        long cacheId = 0);

    static QString selectedTextAsOneLine(KHTMLPart *part);

private Q_SLOTS:
    void slotSaveLinkAs();
    void slotSaveImageAs();
    void slotCopyLinkLocation();
    void slotSendImage();
    void slotStopAnimations();
    void slotCopyImageLocation();
    void slotCopyImage();
    void slotViewImage();
    void slotReloadFrame();
    void slotFrameInWindow();
    void slotFrameInTop();
    void slotFrameInTab();
    void slotBlockImage();
    void slotBlockHost();
    void slotBlockIFrame();
    void openSelection();

private:
    void addSearchActions(QList<QAction *> &editActions);

    class KHTMLPopupGUIClientPrivate;
    KHTMLPopupGUIClientPrivate *const d;
};

class KHTMLZoomFactorAction : public KSelectAction
{
    Q_OBJECT
public:
    KHTMLZoomFactorAction(KHTMLPart *part, bool direction, const QString &iconName, const QString &text, QObject *parent);
    virtual ~KHTMLZoomFactorAction();

protected Q_SLOTS:
    void slotTriggered(QAction *action);
private:
    void init(KHTMLPart *part, bool direction);
private:
    bool m_direction;
    KHTMLPart *m_part;
};

/**
 * @internal
 * Implements the TextExtension interface
 */
class KHTMLTextExtension : public KParts::TextExtension
{
    Q_OBJECT
public:
    KHTMLTextExtension(KHTMLPart *part);

    bool hasSelection() const override;
    QString selectedText(Format format) const override;
    QString completeText(Format format) const override;

    KHTMLPart *part() const;
};

/**
 * @internal
 * Implements the HtmlExtension interface
 */
class KHTMLHtmlExtension : public KParts::HtmlExtension,
    public KParts::SelectorInterface,
    public KParts::HtmlSettingsInterface
{
    Q_OBJECT
    Q_INTERFACES(KParts::SelectorInterface)
    Q_INTERFACES(KParts::HtmlSettingsInterface)

public:
    KHTMLHtmlExtension(KHTMLPart *part);

    // HtmlExtension
    QUrl baseUrl() const override;
    bool hasSelection() const override;

    // SelectorInterface
    QueryMethods supportedQueryMethods() const override;
    Element querySelector(const QString &query, QueryMethod method) const override;
    QList<Element> querySelectorAll(const QString &query, QueryMethod method) const override;

    // SettingsInterface
    QVariant htmlSettingsProperty(HtmlSettingsType type) const override;
    bool setHtmlSettingsProperty(HtmlSettingsType type, const QVariant &value) override;

    KHTMLPart *part() const;
};

#endif