/*******************************************************************************
* Copyright (c) 2016, 2017 Obeo.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.eef.core.api.controllers;
import java.util.function.Consumer;
/**
* The Widget controller is responsible for the refresh of the label of a widget.
*
* @author sbegaudeau
*/
public interface IEEFWidgetController extends IEEFController {
/**
* Register a consumer which will be called with the new value of the label when it will change.
*
* @param consumer
* The consumer of the new value of the label
*/
void onNewLabel(Consumer<String> consumer);
/**
* Remove the consumer of the new value of the label.
*/
void removeNewLabelConsumer();
/**
* Registers a consumer which will be called with the new value of the help.
*
* @param consumer
* The consumer of the new value of the help
*/
void onNewHelp(Consumer<String> consumer);
/**
* Removes the consumer of the new value of the help.
*/
void removeNewHelpConsumer();
/**
* Compute the help message.
*/
void computeHelp();
}