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[android_pandora.git] / apps / AndroidSupportV2 / src / android / support / v2 / view / MenuCompat.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * 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 android.support.v2.view;

import android.view.MenuItem;

/**
 * Helper for accessing newer features in menus.
 */
public class MenuCompat {
    /**
     * Interface for the full API.
     */
    interface MenuVersionImpl {
        public boolean setShowAsAction(MenuItem item, int actionEnum);
    }

    /**
     * Interface implementation that doesn't use anything about v4 APIs.
     */
    static class BaseMenuVersionImpl implements MenuVersionImpl {
        @Override
        public boolean setShowAsAction(MenuItem item, int actionEnum) {
            return false;
        }
    }

    /**
     * Interface implementation for devices with at least v11 APIs.
     */
    static class HoneycombMenuVersionImpl implements MenuVersionImpl {
        @Override
        public boolean setShowAsAction(MenuItem item, int actionEnum) {
            //MenuCompatHoneycomb.setShowAsAction(item, actionEnum);
            return true;
        }
    }

    /**
     * Select the correct implementation to use for the current platform.
     */
    static final MenuVersionImpl IMPL;
    static {
        //v4 if (android.os.Build.VERSION.SDK_INT >= 11) {
        if (android.support.v2.os.Build.VERSION.SDK_INT >= 11) {
            IMPL = null;//new HoneycombMenuVersionImpl();
        } else {
            IMPL = new BaseMenuVersionImpl();
        }
    }

    // -------------------------------------------------------------------

    /**
     * Call {@link MenuItem#setShowAsAction(int) MenuItem.setShowAsAction()}.
     * If running on a pre-{@android.os.Build.VERSION_CODES#HONEYCOMB} device,
     * does nothing and returns false.  Otherwise returns true.
     */
    public static boolean setShowAsAction(MenuItem item, int actionEnum) {
        return IMPL.setShowAsAction(item, actionEnum);
    }
}