bool QtViewportInteractionEngine::ensureContentWithinViewportBoundary(bool immediate)
{
ASSERT(m_suspendCount);
if (scrollAnimationActive() || scaleAnimationActive())
return false;
qreal endItemScale = itemScaleFromCSS(innerBoundedCSSScale(currentCSSScale()));
const QRectF viewportRect = m_viewport->boundingRect();
QPointF viewportHotspot = viewportRect.center();
QPointF endPosition = m_viewport->mapToWebContent(viewportHotspot) * endItemScale - viewportHotspot;
QRectF endPosRange = computePosRangeForItemAtScale(endItemScale);
endPosition = boundPosition(endPosRange.topLeft(), endPosition, endPosRange.bottomRight());
QRectF endVisibleContentRect(endPosition / endItemScale, viewportRect.size() / endItemScale);
if (immediate) {
setItemRectVisible(endVisibleContentRect);
return true;
}
return !animateItemRectVisible(endVisibleContentRect);
}
QRectF QtViewportHandler::nearestValidBounds() const
{
qreal endItemScale = itemScaleFromCSS(innerBoundedCSSScale(currentCSSScale()));
const QRectF viewportRect = m_viewportItem->boundingRect();
QPointF viewportHotspot = viewportRect.center();
QPointF endPosition = m_viewportItem->mapToWebContent(viewportHotspot) * endItemScale - viewportHotspot;
QRectF endPosRange = computePosRangeForPageItemAtScale(endItemScale);
endPosition = boundPosition(endPosRange.topLeft(), endPosition, endPosRange.bottomRight());
QRectF endVisibleContentRect(endPosition / endItemScale, viewportRect.size() / endItemScale);
return endVisibleContentRect;
}
