/**
* Called to start preempting. The given display will preempt all other displays for this isolate.
*
* @param displayId ID of the Display
*/
public void startPreempting(int displayId) {
foregroundEventProducer.sendDisplayBackgroundNotifyEvent(displayId);
requestForeground(displayId, true);
}
/**
* Called to end preempting.
*
* @param displayId ID of the Display
*/
public void stopPreempting(int displayId) {
foregroundEventProducer.sendDisplayBackgroundNotifyEvent(displayId);
requestForeground(currentDisplayId, false);
}
/**
* Called to request the foreground. This implementation does nothing.
*
* @param displayId ID of the Display
* @param isAlert true if the current displayable is an Alert
*/
public void requestForeground(int displayId, boolean isAlert) {
NativeForegroundState.setState(internalSecurityToken, displayId);
foregroundEventProducer.sendDisplayForegroundNotifyEvent(displayId);
}