Home | History | Annotate | Download | only in utils
      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.inputmethod.latin.utils;
     18 
     19 import android.os.Handler;
     20 import android.os.Looper;
     21 
     22 import java.lang.ref.WeakReference;
     23 
     24 public class StaticInnerHandlerWrapper<T> extends Handler {
     25     private final WeakReference<T> mOuterInstanceRef;
     26 
     27     public StaticInnerHandlerWrapper(final T outerInstance) {
     28         this(outerInstance, Looper.myLooper());
     29     }
     30 
     31     public StaticInnerHandlerWrapper(final T outerInstance, final Looper looper) {
     32         super(looper);
     33         if (outerInstance == null) {
     34             throw new NullPointerException("outerInstance is null");
     35         }
     36         mOuterInstanceRef = new WeakReference<T>(outerInstance);
     37     }
     38 
     39     public T getOuterInstance() {
     40         return mOuterInstanceRef.get();
     41     }
     42 }
     43