private void processMouseWheelEvent(final Event event) {
final int dir = DOM.eventGetMouseWheelVelocityY(event);
if (dir < 0) {
increaseValue(false);
} else {
decreaseValue(false);
}
delayedValueUpdater.trigger();
DOM.eventPreventDefault(event);
DOM.eventCancelBubble(event, true);
}
@Override
public void onBrowserEvent(Event event) {
if (disabled || readonly) {
return;
}
final Element targ = DOM.eventGetTarget(event);
if (DOM.eventGetType(event) == Event.ONMOUSEWHEEL) {
processMouseWheelEvent(event);
} else if (dragging || targ == handle) {
processHandleEvent(event);
} else if (targ == smaller) {
decreaseValue(true);
} else if (targ == bigger) {
increaseValue(true);
} else if (DOM.eventGetType(event) == Event.MOUSEEVENTS) {
processBaseEvent(event);
} else if (BrowserInfo.get().isGecko() && DOM.eventGetType(event) == Event.ONKEYPRESS
|| !BrowserInfo.get().isGecko() && DOM.eventGetType(event) == Event.ONKEYDOWN) {
if (handleNavigation(event.getKeyCode(), event.getCtrlKey(), event.getShiftKey())) {
feedbackPopup.show();
delayedValueUpdater.trigger();
DOM.eventPreventDefault(event);
DOM.eventCancelBubble(event, true);
}
} else if (targ.equals(getElement()) && DOM.eventGetType(event) == Event.ONFOCUS) {
feedbackPopup.show();
} else if (targ.equals(getElement()) && DOM.eventGetType(event) == Event.ONBLUR) {
feedbackPopup.hide();
} else if (DOM.eventGetType(event) == Event.ONMOUSEDOWN) {
feedbackPopup.show();
}
if (WidgetUtil.isTouchEvent(event)) {
event.preventDefault(); // avoid simulated events
event.stopPropagation();
}
}