void WebViewNix::didChangeContentPosition(const WebCore::FloatPoint& trajectoryVector)
{
DrawingAreaProxy* drawingArea = page()->drawingArea();
if (!drawingArea)
return;
FloatRect visibleContentsRect(contentPosition(), visibleContentsSize());
visibleContentsRect.intersect(FloatRect(FloatPoint(), contentsSize()));
drawingArea->setVisibleContentsRect(visibleContentsRect, trajectoryVector);
}
void PageViewportController::syncVisibleContents(const FloatPoint& trajectoryVector)
{
DrawingAreaProxy* drawingArea = m_webPageProxy->drawingArea();
if (!drawingArea || m_viewportSize.isEmpty() || m_contentsSize.isEmpty())
return;
FloatRect visibleContentsRect(clampViewportToContents(m_viewportPos, m_effectiveScale), viewportSizeInContentsCoordinates());
visibleContentsRect.intersect(FloatRect(FloatPoint::zero(), m_contentsSize));
drawingArea->setVisibleContentsRect(visibleContentsRect, m_effectiveScale, trajectoryVector);
m_client->didChangeVisibleContents();
}
void QtViewportHandler::informVisibleContentChange(const QPointF& trajectoryVector)
{
DrawingAreaProxy* drawingArea = m_webPageProxy->drawingArea();
if (!drawingArea)
return;
if (m_lastVisibleContentsRect == visibleContentsRect())
return;
qreal scale = m_pageItem->contentsScale();
if (scale != m_lastCommittedScale)
emit m_viewportItem->experimental()->test()->contentsScaleCommitted();
m_lastCommittedScale = scale;
m_lastVisibleContentsRect = visibleContentsRect();
drawingArea->setVisibleContentsRect(visibleContentsRect(), scale, trajectoryVector, m_viewportItem->contentPos());
// Ensure that updatePaintNode is always called before painting.
m_pageItem->update();
}
