java/src/com/android/inputmethod/latin/StaticInnerHandlerWrapper.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 com.android.inputmethod.latin;

import android.os.Handler;
import android.os.Looper;

import java.lang.ref.WeakReference;

public class StaticInnerHandlerWrapper<T> extends Handler {
    private final WeakReference<T> mOuterInstanceRef;

    public StaticInnerHandlerWrapper(final T outerInstance) {
        this(outerInstance, Looper.myLooper());
    }

    public StaticInnerHandlerWrapper(final T outerInstance, final Looper looper) {
        super(looper);
        if (outerInstance == null) {
            throw new NullPointerException("outerInstance is null");
        }
        mOuterInstanceRef = new WeakReference<T>(outerInstance);
    }

    public T getOuterInstance() {
        return mOuterInstanceRef.get();
    }
}