package skrueger.swing;


public abstract class CancellableDialogManager<KEY, DIALOG extends CancellableDialogAdapter>
		extends DialogManager<KEY, DIALOG> {

	/**
	 * Will force a dispose of all dialogs, but the user may decide whether she
	 * wants to save anything first.
	 */
	public void forceCloseAllInstances() {
		for (DIALOG d : getAllInstances()) {
			d.forceClose();
		}
		dialogCache.clear();
	}

	/**
	 * Will try to close all dialogs, but the user may decide whether she
	 * wants to save anything first or abort the closing.
	 */
	public boolean closeAllInstances() {
		for (DIALOG d : getAllInstances()) {
			if (!d.close())
				return false;
		}
		
		dialogCache.clear();
		return true;
	}

	/**
	 * Tells the user that the dialog shall be closed. The user may save, cancel or abort the closing.
	 * 
	 * @return <code>true</code> if there is no open instance or the instance has been disposed
	 */
	public boolean close(KEY key) {
		if (isVisibleFor(key)) {
			boolean closeResult =  getInstanceFor(key, null).close();
			if (closeResult) dialogCache.remove(key);
			return closeResult;
		}
		dialogCache.remove(key);
		return true;
	}

}