nsEventStatus AsyncPanZoomController::OnTouchStart(const MultiTouchInput& aEvent) {
SingleTouchData& touch = GetFirstSingleTouch(aEvent);
nsIntPoint point = touch.mScreenPoint;
PRInt32 xPos = point.x, yPos = point.y;
switch (mState) {
case FLING:
CancelAnimation();
// Fall through.
case NOTHING:
mX.StartTouch(xPos);
mY.StartTouch(yPos);
mState = TOUCHING;
break;
case TOUCHING:
case PANNING:
case PINCHING:
NS_WARNING("Received impossible touch in OnTouchStart");
break;
default:
NS_WARNING("Unhandled case in OnTouchStart");
break;
}
return nsEventStatus_eConsumeNoDefault;
}
nsEventStatus AsyncPanZoomController::OnTouchStart(const MultiTouchEvent& event) {
SingleTouchData& touch = GetTouchFromEvent(event);
nsIntPoint point = touch.mScreenPoint;
PRInt32 xPos = point.x, yPos = point.y;
switch (mState) {
case ANIMATED_ZOOM: {
// We just interrupted a double-tap animation, so force a redraw in case
// this touchstart is just a tap that doesn't end up triggering a redraw.
ReentrantMonitorAutoEnter monitor(mReentrantMonitor);
ForceRepaint();
SendViewportChange();
}
// Fall through.
case FLING:
case BOUNCE:
CancelAnimation();
// Fall through.
case NOTHING:
case WAITING_LISTENERS:
mX.StartTouch(xPos);
mY.StartTouch(yPos);
mState = TOUCHING;
break;
case TOUCHING:
case PANNING:
case PANNING_LOCKED:
case PANNING_HOLD:
case PANNING_HOLD_LOCKED:
case PINCHING:
NS_WARNING("Received impossible touch in OnTouchStart");
break;
default:
NS_WARNING("Unhandled case in OnTouchStart");
break;
}
return nsEventStatus_eConsumeNoDefault;
}