void Scrollbar::mouseMoved(const PlatformMouseEvent& evt)
{
if (m_pressedPart == ThumbPart) {
moveThumb(m_orientation == HorizontalScrollbar ?
convertFromContainingView(evt.position()).x() :
convertFromContainingView(evt.position()).y());
return;
}
if (m_pressedPart != NoPart)
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
// FIXME(sky): Cleanup this code now that part is always NoPart.
ScrollbarPart part = NoPart;
if (part != m_hoveredPart) {
if (m_pressedPart != NoPart) {
if (part == m_pressedPart) {
// The mouse is moving back over the pressed part. We
// need to start up the timer action again.
startTimerIfNeeded(autoscrollTimerDelay());
invalidatePart(m_pressedPart);
} else if (m_hoveredPart == m_pressedPart) {
// The mouse is leaving the pressed part. Kill our timer
// if needed.
stopTimerIfNeeded();
invalidatePart(m_pressedPart);
}
}
setHoveredPart(part);
}
return;
}
IntPoint Widget::convertFromRootView(const IntPoint& rootPoint) const
{
if (const ScrollView* parentScrollView = parent()) {
IntPoint parentPoint = parentScrollView->convertFromRootView(rootPoint);
return convertFromContainingView(parentPoint);
}
return rootPoint;
}
IntPoint Widget::convertFromContainingWindow(const IntPoint& windowPoint) const
{
if (const ScrollView* parentScrollView = parent()) {
IntPoint parentPoint = parentScrollView->convertFromContainingWindow(windowPoint);
return convertFromContainingView(parentPoint);
}
return convertFromContainingWindowToRoot(this, windowPoint);
}
IntRect Widget::convertFromRootView(const IntRect& rootRect) const
{
if (const Widget* parentWidget = parent()) {
IntRect parentRect = parentWidget->convertFromRootView(rootRect);
return convertFromContainingView(parentRect);
}
return rootRect;
}
IntPoint Widget::convertFromContainingWindow(const IntPoint& windowPoint) const
{
if (const Widget* parentWidget = parent()) {
IntPoint parentPoint = parentWidget->convertFromContainingWindow(windowPoint);
return convertFromContainingView(parentPoint);
}
return windowPoint;
}
void Scrollbar::mouseDown(const PlatformMouseEvent& evt)
{
// Early exit for right click
if (evt.button() == RightButton)
return;
// FIXME(sky): Do we still need setPressedPart now that we only set it to NoPart?
setPressedPart(NoPart);
int pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
if (m_pressedPart == ThumbPart)
m_dragOrigin = m_currentPos;
m_pressedPos = pressedPos;
autoscrollPressedPart(initialAutoscrollTimerDelay());
}
bool Scrollbar::gestureEvent(const PlatformGestureEvent& evt)
{
switch (evt.type()) {
case PlatformEvent::GestureTapDown:
// FIXME(sky): Is setting the pressed part needed since we only have overlay scrollbars?
setPressedPart(NoPart);
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
return true;
case PlatformEvent::GestureTapDownCancel:
case PlatformEvent::GestureScrollBegin:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos = m_pressedPos;
return true;
case PlatformEvent::GestureScrollUpdate:
case PlatformEvent::GestureScrollUpdateWithoutPropagation:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos += orientation() == HorizontalScrollbar ? evt.deltaX() : evt.deltaY();
moveThumb(m_scrollPos);
return true;
case PlatformEvent::GestureScrollEnd:
case PlatformEvent::GestureLongPress:
case PlatformEvent::GestureFlingStart:
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
case PlatformEvent::GestureTap: {
if (m_pressedPart != ThumbPart && m_pressedPart != NoPart && m_scrollableArea
&& m_scrollableArea->scroll(pressedPartScrollDirection(), pressedPartScrollGranularity())) {
return true;
}
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
}
default:
// By default, we assume that gestures don't deselect the scrollbar.
return true;
}
}
