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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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 com.android.ide.common.api;
import com.android.annotations.NonNull;
import com.android.annotations.Nullable;
import com.google.common.annotations.Beta;
import java.util.List;
/**
* Callback interface for a {@link RuleAction}. The callback performs the actual
* work of the action, and this level of indirection allows multiple actions (which
* typically do not have their own class, only their own instances) to share a single
* implementation callback class.
* <p>
* <b>NOTE: This is not a public or final API; if you rely on this be prepared
* to adjust your code for the next tools release.</b>
* </p>
*/
@Beta
public interface IMenuCallback {
/**
* Performs the actual work promised by the {@link RuleAction}.
* @param action The action being applied.
* @param selectedNodes The nodes to apply the action to
* @param valueId For a Choices action, the string id of the selected choice
* @param newValue For a toggle or for a flag, true if the item is being
* checked, false if being unchecked. For enums this is not
* useful; however for flags it allows one to add or remove items
* to the flag's choices.
*/
void action(
@NonNull RuleAction action,
@NonNull List<? extends INode> selectedNodes,
@Nullable String valueId,
@Nullable Boolean newValue);
/** Callback which does nothing */
@NonNull
public static final IMenuCallback NONE = new IMenuCallback() {
@Override
public void action(
@NonNull RuleAction action,
@NonNull
List<? extends INode> selectedNodes,
@Nullable String valueId,
@Nullable Boolean newValue) {
}
};
}
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