void AutoscrollController::autoscrollTimerFired(Timer<AutoscrollController>&)
{
if (!m_autoscrollRenderer) {
stopAutoscrollTimer();
return;
}
Frame& frame = m_autoscrollRenderer->frame();
switch (m_autoscrollType) {
case AutoscrollForDragAndDrop:
if (WTF::currentTime() - m_dragAndDropAutoscrollStartTime > autoscrollDelay)
m_autoscrollRenderer->autoscroll(m_dragAndDropAutoscrollReferencePosition);
break;
case AutoscrollForSelection: {
if (!frame.eventHandler().mousePressed()) {
stopAutoscrollTimer();
return;
}
#if ENABLE(DRAG_SUPPORT)
frame.eventHandler().updateSelectionForMouseDrag();
#endif
m_autoscrollRenderer->autoscroll(frame.eventHandler().lastKnownMousePosition());
break;
}
case NoAutoscroll:
break;
#if ENABLE(PAN_SCROLLING)
case AutoscrollForPanCanStop:
case AutoscrollForPan:
// we verify that the main frame hasn't received the order to stop the panScroll
if (Frame* mainFrame = getMainFrame(&frame)) {
if (!mainFrame->eventHandler().panScrollInProgress()) {
stopAutoscrollTimer();
return;
}
}
if (FrameView* view = frame.view())
updatePanScrollState(view, frame.eventHandler().lastKnownMousePosition());
m_autoscrollRenderer->panScroll(m_panScrollStartPos);
break;
#endif
}
}
// FIXME: This would get get better animation fidelity if it used the monotonicFrameBeginTime instead
// of WTF::currentTime().
void AutoscrollController::animate(double)
{
if (!m_autoscrollLayoutObject) {
stopAutoscroll();
return;
}
EventHandler& eventHandler = m_autoscrollLayoutObject->frame()->eventHandler();
switch (m_autoscrollType) {
case AutoscrollForDragAndDrop:
if (WTF::currentTime() - m_dragAndDropAutoscrollStartTime > autoscrollDelay)
m_autoscrollLayoutObject->autoscroll(m_dragAndDropAutoscrollReferencePosition);
break;
case AutoscrollForSelection:
if (!eventHandler.mousePressed()) {
stopAutoscroll();
return;
}
eventHandler.updateSelectionForMouseDrag();
m_autoscrollLayoutObject->autoscroll(eventHandler.lastKnownMousePosition());
break;
case NoAutoscroll:
break;
#if OS(WIN)
case AutoscrollForPanCanStop:
case AutoscrollForPan:
if (!panScrollInProgress()) {
stopAutoscroll();
return;
}
if (FrameView* view = m_autoscrollLayoutObject->frame()->view())
updatePanScrollState(view, eventHandler.lastKnownMousePosition());
m_autoscrollLayoutObject->panScroll(m_panScrollStartPos);
break;
#endif
}
if (m_autoscrollType != NoAutoscroll && m_autoscrollLayoutObject)
m_page->chromeClient().scheduleAnimation(m_autoscrollLayoutObject->frame()->view());
}
void AutoscrollController::autoscrollTimerFired(Timer<AutoscrollController>*)
{
if (!m_autoscrollRenderer) {
stopAutoscrollTimer();
return;
}
EventHandler* eventHandler = m_autoscrollRenderer->frame()->eventHandler();
switch (m_autoscrollType) {
case AutoscrollForDragAndDrop:
if (WTF::currentTime() - m_dragAndDropAutoscrollStartTime > autoscrollDelay)
m_autoscrollRenderer->autoscroll(m_dragAndDropAutoscrollReferencePosition);
break;
case AutoscrollForSelection:
if (!eventHandler->mousePressed()) {
stopAutoscrollTimer();
return;
}
eventHandler->updateSelectionForMouseDrag();
m_autoscrollRenderer->autoscroll(eventHandler->lastKnownMousePosition());
break;
case NoAutoscroll:
break;
#if ENABLE(PAN_SCROLLING)
case AutoscrollForPanCanStop:
case AutoscrollForPan:
if (!panScrollInProgress()) {
stopAutoscrollTimer();
return;
}
if (FrameView* view = m_autoscrollRenderer->frame()->view())
updatePanScrollState(view, eventHandler->lastKnownMousePosition());
m_autoscrollRenderer->panScroll(m_panScrollStartPos);
break;
#endif
}
}
