forked from qt-creator/qt-creator
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
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/*
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This file was generated by the Html5 Application wizard of Qt Creator.
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Html5ApplicationViewer is a convenience class containing mobile device specific
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code such as screen orientation handling.
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It is recommended not to modify this file, since newer versions of Qt Creator
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may offer an updated version of it.
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*/
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#include <QWebFrame>
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#include "webtouchscroller.h"
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void qtwebkit_webframe_scrollRecursively(QWebFrame* qFrame, int dx, int dy, const QPoint &pos)
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{
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Q_UNUSED(pos);
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if (!qFrame)
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return;
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bool scrollHorizontal = false;
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bool scrollVertical = false;
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do {
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if (qFrame->scrollBarPolicy(Qt::Horizontal) == Qt::ScrollBarAlwaysOn) {
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if (dx > 0) // scroll right
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scrollHorizontal = qFrame->scrollBarValue(Qt::Horizontal) < qFrame->scrollBarMaximum(Qt::Horizontal);
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else if (dx < 0) // scroll left
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scrollHorizontal = qFrame->scrollBarValue(Qt::Horizontal) > qFrame->scrollBarMinimum(Qt::Horizontal);
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} else {
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scrollHorizontal = true;
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}
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if (qFrame->scrollBarPolicy(Qt::Vertical) == Qt::ScrollBarAlwaysOn) {
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if (dy > 0) // scroll down
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scrollVertical = qFrame->scrollBarValue(Qt::Vertical) < qFrame->scrollBarMaximum(Qt::Vertical);
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else if (dy < 0) //scroll up
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scrollVertical = qFrame->scrollBarValue(Qt::Vertical) > qFrame->scrollBarMinimum(Qt::Vertical);
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} else {
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scrollVertical = true;
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}
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if (scrollHorizontal || scrollVertical) {
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qFrame->scroll(dx, dy);
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return;
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}
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qFrame = qFrame->parentFrame();
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} while (qFrame);
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}
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WebTouchScroller::WebTouchScroller(QObject *parent)
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: QObject(parent)
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, m_webFrame(0)
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{
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}
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WebTouchScroller::~WebTouchScroller()
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{
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}
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void WebTouchScroller::setFrame(QWebFrame* frame)
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{
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m_webFrame = frame;
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}
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void WebTouchScroller::scroll(const QPointF &delta, const QPoint &scrollStartPoint)
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{
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if (!m_webFrame)
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return;
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qtwebkit_webframe_scrollRecursively(m_webFrame, delta.x(), delta.y(),
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scrollStartPoint - m_webFrame->scrollPosition());
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}
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