/*
* Copyright 2003-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.openapi.editor.assist;
import jetbrains.mps.openapi.editor.menus.transformation.TransformationMenuItem;
import org.jetbrains.annotations.Nullable;
import java.util.List;
public interface ContextAssistantManager {
void register(ContextAssistant assistant);
void unregister(ContextAssistant assistant);
/**
* Notify the instance that it should update its state (hide/rebuild/show the menu). The menu will be hidden immediately, and a delayed update scheduled.
*/
void scheduleUpdate();
/**
* Hide/rebuild/show the menu immediately.
*/
void updateImmediately();
/**
* @return the currently active (visible) assistant, or {@code null}.
*/
@Nullable
ContextAssistant getActiveAssistant();
/**
* @return the currently active (visible) menu items, or {@code null}.
*/
@Nullable
List<TransformationMenuItem> getActiveMenuItems();
}