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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CENTRALWIDGET_H
#define CENTRALWIDGET_H
#include <QtCore/QUrl>
#include <QtCore/QHash>
#include <QtWidgets/QTabBar>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE
class FindWidget;
class HelpViewer;
class QStackedWidget;
class QPrinter;
class TabBar : public QTabBar
{
Q_OBJECT
friend class CentralWidget;
public:
~TabBar();
int addNewTab(const QString &title);
void setCurrent(HelpViewer *viewer);
void removeTabAt(HelpViewer *viewer);
public slots:
void titleChanged();
signals:
void currentTabChanged(HelpViewer *viewer);
void addBookmark(const QString &title, const QString &url);
private:
TabBar(QWidget *parent = nullptr);
private slots:
void slotCurrentChanged(int index);
void slotTabCloseRequested(int index);
void slotCustomContextMenuRequested(const QPoint &pos);
};
class CentralWidget : public QWidget
{
Q_OBJECT
friend class OpenPagesManager;
public:
CentralWidget(QWidget *parent = nullptr);
~CentralWidget() override;
static CentralWidget *instance();
QUrl currentSource() const;
QString currentTitle() const;
bool hasSelection() const;
bool isForwardAvailable() const;
bool isBackwardAvailable() const;
HelpViewer *viewerAt(int index) const;
HelpViewer *currentHelpViewer() const;
int currentIndex() const;
void connectTabBar();
public slots:
#if QT_CONFIG(clipboard)
void copy();
#endif
void home();
void zoomIn();
void zoomOut();
void resetZoom();
void forward();
void nextPage();
void backward();
void previousPage();
void print();
void pageSetup();
void printPreview();
void setSource(const QUrl &url);
void setSourceFromSearch(const QUrl &url);
void findNext();
void findPrevious();
void find(const QString &text, bool forward, bool incremental);
void activateTab();
void showTextSearch();
void updateBrowserFont();
void updateUserInterface();
signals:
void currentViewerChanged();
#if QT_CONFIG(clipboard)
void copyAvailable(bool yes);
#endif
void sourceChanged(const QUrl &url);
void highlighted(const QUrl &link);
void forwardAvailable(bool available);
void backwardAvailable(bool available);
void addBookmark(const QString &title, const QString &url);
protected:
void keyPressEvent(QKeyEvent *) override;
void focusInEvent(QFocusEvent *event) override;
private slots:
void highlightSearchTerms();
void printPreviewToPrinter(QPrinter *printer);
void handleSourceChanged(const QUrl &url);
void slotHighlighted(const QUrl& link);
private:
void initPrinter();
void connectSignals(HelpViewer *page);
bool eventFilter(QObject *object, QEvent *e) override;
void removePage(int index);
void setCurrentPage(HelpViewer *page);
void addPage(HelpViewer *page, bool fromSearch = false);
private:
#ifndef QT_NO_PRINTER
QPrinter *m_printer;
#endif
FindWidget *m_findWidget;
QStackedWidget *m_stackedWidget;
TabBar *m_tabBar;
QHash<QUrl, QUrl> m_resolvedLinks;
};
QT_END_NAMESPACE
#endif // CENTRALWIDGET_H
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