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/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __ARTICLEWEBVIEW_HH_INCLUDED__
#define __ARTICLEWEBVIEW_HH_INCLUDED__
#include "config.hh"
#include <QEvent>
#include <QMouseEvent>
#include <QWebEngineView>
#include <QPointer>
/// A thin wrapper around QWebEngineView to accommodate to some ArticleView's needs.
/// Currently the only added features:
/// 1. Ability to know if the middle mouse button is pressed or not according
/// to the view's current state. This is used to open links in new tabs when
/// they are clicked with middle button. There's also an added possibility to
/// get double-click events after the fact with the doubleClicked() signal.
class ArticleWebView: public QWebEngineView
{
Q_OBJECT
public:
ArticleWebView( QWidget * parent );
~ArticleWebView();
void setUp( Config::Class * cfg );
bool isMidButtonPressed() const
{ return midButtonPressed; }
void resetMidButtonPressed()
{
midButtonPressed = false;
}
void setSelectionBySingleClick( bool set )
{ selectionBySingleClick = set; }
bool eventFilter(QObject *obj, QEvent *ev);
signals:
/// Signals that the user has just double-clicked. The signal is delivered
/// after the event was processed by the view -- that's the difference from
/// installing an event filter. This is used for translating the double-clicked
/// word, which gets selected by the view in response to double-click.
void doubleClicked( QPoint pos );
void linkClicked( const QUrl & url );
protected:
QWebEngineView *createWindow(QWebEnginePage::WebWindowType type);
bool event( QEvent * event );
void singleClickAction(QMouseEvent *event);
void sendCustomMouseEvent(QEvent::Type type);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent( QMouseEvent * event );
void doubleClickAction( QMouseEvent * event );
void focusInEvent( QFocusEvent * event );
void wheelEvent( QWheelEvent * event );
private:
Config::Class * cfg;
//QPointer<QOpenGLWidget> child_;
bool midButtonPressed;
bool selectionBySingleClick;
//MouseDbClickEvent will also emit MousePressEvent which conflict the single click event.
//this variable used to distinguish the single click and real double click.
bool singleClickToDbClick;
bool dbClicked;
public slots:
//receive signal ,a link has been clicked.
void linkClickedInHtml(QUrl const& url);
};
#endif
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