plasma-framework/private/animablegraphicswebview.cpp
Marco Martin 2f8e70b7ab make the webview widget use scrollwidget for flicking
still some issues to fix, but most of the behaviour is ported.
patch based on zack's work
CCMAIL:zack@kde.org

svn path=/trunk/KDE/kdelibs/; revision=1108058
2010-03-27 17:44:16 +00:00

193 lines
4.7 KiB
C++

/*
* Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
* Copyright 2010 Davide Bettio <davide.bettio@kdemail.net>
*
* This program 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, or
* (at your option) any later version.
*
* This program 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 General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "animablegraphicswebview_p.h"
#include <QtGui/QApplication>
#include <QGestureEvent>
#include <QPinchGesture>
#include <QtWebKit/QWebFrame>
#include <kwebpage.h>
using namespace Plasma;
AnimableGraphicsWebView::AnimableGraphicsWebView(QGraphicsItem * parent)
: KGraphicsWebView(parent)
{
setAcceptTouchEvents(true);
m_dragToScroll = false;
}
void AnimableGraphicsWebView::setDragToScroll(bool enable)
{
m_dragToScroll = enable;
}
bool AnimableGraphicsWebView::dragToScroll() const
{
return m_dragToScroll;
}
QSizeF AnimableGraphicsWebView::contentsSize() const
{
if (!page()) {
return QSizeF();
} else {
return page()->mainFrame()->contentsSize();
}
}
void AnimableGraphicsWebView::setScrollPosition(const QPointF &position)
{
if (!page()) {
return;
} else {
page()->mainFrame()->setScrollPosition(position.toPoint());
}
}
QPointF AnimableGraphicsWebView::scrollPosition() const
{
if (!page() || !page()->mainFrame()) {
return QPointF();
} else {
return page()->mainFrame()->scrollPosition();
}
}
qreal AnimableGraphicsWebView::zoom() const
{
return KGraphicsWebView::zoomFactor();
}
void AnimableGraphicsWebView::setZoom(const qreal zoom)
{
KGraphicsWebView::setZoomFactor(zoom);
}
QRectF AnimableGraphicsWebView::viewportGeometry() const
{
QRectF result;
if (!page()) {
return result;
} else {
return page()->mainFrame()->geometry();
}
}
void AnimableGraphicsWebView::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (!page()) {
KGraphicsWebView::mouseMoveEvent(event);
return;
}
if (m_dragToScroll) {
return;
}
QMouseEvent me(QEvent::MouseMove, event->pos().toPoint(), event->button(),
event->buttons(), event->modifiers());
page()->event(&me);
if (me.isAccepted()) {
event->accept();
}
}
void AnimableGraphicsWebView::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (!page()) {
KGraphicsWebView::mousePressEvent(event);
return;
}
m_lastScrollPosition = scrollPosition();
setFocus();
QMouseEvent me(QEvent::MouseButtonPress, event->pos().toPoint(),
event->button(), event->buttons(), event->modifiers());
page()->event(&me);
if (me.isAccepted() && !m_dragToScroll) {
event->accept();
}
}
void AnimableGraphicsWebView::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (!page()) {
KGraphicsWebView::mouseReleaseEvent(event);
return;
}
QMouseEvent me(QEvent::MouseButtonRelease, event->pos().toPoint(),
event->button(),event->buttons(), event->modifiers());
if (!m_dragToScroll || (scrollPosition() - m_lastScrollPosition).manhattanLength() < QApplication::startDragDistance()) {
page()->event(&me);
}
if (me.isAccepted() && !m_dragToScroll) {
event->accept();
}
}
void AnimableGraphicsWebView::wheelEvent(QGraphicsSceneWheelEvent *event)
{
if (!page()) {
KGraphicsWebView::wheelEvent(event);
return;
}
QWheelEvent we(event->pos().toPoint(), event->delta(), event->buttons(),
event->modifiers(), event->orientation());
page()->event(&we);
event->setAccepted(!m_dragToScroll);
}
qreal AnimableGraphicsWebView::scrollPositionX() const
{
return page()->mainFrame()->scrollPosition().x();
}
void AnimableGraphicsWebView::setScrollPositionX(qreal position)
{
QPointF pt(position, scrollPositionY());
setScrollPosition(pt);
}
qreal AnimableGraphicsWebView::scrollPositionY() const
{
return page()->mainFrame()->scrollPosition().y();
}
void AnimableGraphicsWebView::setScrollPositionY(qreal position)
{
QPointF pt(scrollPositionX(), position);
setScrollPosition(pt);
}
#include "animablegraphicswebview_p.moc"