void PageViewportControllerClientQt::animateContentRectVisible(const QRectF& contentRect)
{
ASSERT(m_scaleAnimation->state() == QAbstractAnimation::Stopped);
ASSERT(!scrollAnimationActive());
if (scrollAnimationActive())
return;
QRectF viewportRectInContentCoords = m_viewportItem->mapRectToWebContent(m_viewportItem->boundingRect());
if (contentRect == viewportRectInContentCoords) {
m_scaleChange.end();
updateViewportController();
return;
}
// Inform the web process about the requested visible content rect immediately so that new tiles
// are rendered at the final destination during the animation.
m_controller->didChangeContentsVisibility(contentRect.topLeft(), viewportScaleForRect(contentRect));
// Since we have to animate scale and position at the same time the scale animation interpolates
// from the current viewport rect in content coordinates to a visible rect of the content.
m_scaleAnimation->setStartValue(viewportRectInContentCoords);
m_scaleAnimation->setEndValue(contentRect);
m_scaleAnimation->start();
}
void PageViewportControllerClientQt::pageItemPositionChanged()
{
if (m_ignoreViewportChanges)
return;
QPointF newPosition = m_viewportItem->contentPos();
updateViewportController(m_lastScrollPosition - newPosition);
m_lastScrollPosition = newPosition;
}
void PageViewportControllerClientQt::scaleAnimationStateChanged(QAbstractAnimation::State newState, QAbstractAnimation::State /*oldState*/)
{
switch (newState) {
case QAbstractAnimation::Running:
m_scaleChange.begin();
break;
case QAbstractAnimation::Stopped:
m_scaleChange.end();
updateViewportController();
break;
default:
break;
}
}
void PageViewportControllerClientQt::resumeAndUpdateContent()
{
m_controller->resumeContent();
// Make sure that tiles all around the viewport will be requested.
updateViewportController();
}
void PageViewportControllerClientQt::setContentsRectToNearestValidBounds()
{
float targetScale = m_controller->innerBoundedViewportScale(m_pageItem->contentsScale());
setContentRectVisiblePositionAtScale(nearestValidVisibleContentsRect().topLeft(), targetScale);
updateViewportController();
}
void PageViewportControllerClientQt::didResumeContent()
{
// Make sure that tiles all around the viewport will be requested.
updateViewportController();
}
void PageViewportControllerClientQt::setViewportPosition(const FloatPoint& contentsPoint)
{
QPointF newPosition((m_pageItem->position() + QPointF(contentsPoint)) * m_pageItem->contentsScale());
m_viewportItem->setContentPos(newPosition);
updateViewportController();
}
void PageViewportControllerClientQt::pinchGestureCancelled()
{
m_pinchStartScale = -1;
m_scaleChange.end();
updateViewportController();
}
void PageViewportControllerClientQt::flickMoveEnded()
{
// This method is called on the end of the pan or pan kinetic animation.
m_scrollChange.end();
updateViewportController();
}
