@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();
processBaseEvent(event);
}
if (Util.isTouchEvent(event)) {
event.preventDefault(); // avoid simulated events
event.stopPropagation();
}
if (client != null) {
client.handleTooltipEvent(event, this);
}
}
private void setValue(Double value, boolean updateToServer) {
if (value == null) {
return;
}
if (value < min) {
value = min;
} else if (value > max) {
value = max;
}
// Update handle position
final String styleAttribute = vertical ? "marginTop" : "marginLeft";
final String domProperty = vertical ? "offsetHeight" : "offsetWidth";
final int handleSize = Integer.parseInt(DOM.getElementProperty(handle, domProperty));
final int baseSize =
Integer.parseInt(DOM.getElementProperty(base, domProperty)) - (2 * BASE_BORDER_WIDTH);
final int range = baseSize - handleSize;
double v = value.doubleValue();
// Round value to resolution
if (resolution > 0) {
v = Math.round(v * Math.pow(10, resolution));
v = v / Math.pow(10, resolution);
} else {
v = Math.round(v);
}
final double valueRange = max - min;
double p = 0;
if (valueRange > 0) {
p = range * ((v - min) / valueRange);
}
if (p < 0) {
p = 0;
}
if (vertical) {
// IE6 rounding behaves a little unstable, reduce one pixel so the
// containing element (base) won't expand without limits
p = range - p - (BrowserInfo.get().isIE6() ? 1 : 0);
}
final double pos = p;
DOM.setStyleAttribute(handle, styleAttribute, (Math.round(pos)) + "px");
// Update value
this.value = new Double(v);
setFeedbackValue(v);
if (updateToServer) {
updateValueToServer();
}
}