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      1 /*
      2  * Copyright (C) 2012 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.launcher3;
     18 
     19 import android.content.Context;
     20 import android.content.res.TypedArray;
     21 import android.util.AttributeSet;
     22 import android.view.MotionEvent;
     23 import android.view.View;
     24 import android.widget.LinearLayout;
     25 
     26 public class DrawableStateProxyView extends LinearLayout {
     27 
     28     private View mView;
     29     private int mViewId;
     30 
     31     public DrawableStateProxyView(Context context) {
     32         this(context, null);
     33     }
     34 
     35     public DrawableStateProxyView(Context context, AttributeSet attrs) {
     36         this(context, attrs, 0);
     37     }
     38 
     39 
     40     public DrawableStateProxyView(Context context, AttributeSet attrs, int defStyle) {
     41         super(context, attrs, defStyle);
     42 
     43         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.DrawableStateProxyView,
     44                 defStyle, 0);
     45         mViewId = a.getResourceId(R.styleable.DrawableStateProxyView_sourceViewId, -1);
     46         a.recycle();
     47 
     48         setFocusable(false);
     49     }
     50 
     51     @Override
     52     protected void drawableStateChanged() {
     53         super.drawableStateChanged();
     54 
     55         if (mView == null) {
     56             View parent = (View) getParent();
     57             mView = parent.findViewById(mViewId);
     58         }
     59         if (mView != null) {
     60             mView.setPressed(isPressed());
     61             mView.setHovered(isHovered());
     62         }
     63     }
     64 
     65     @Override
     66     public boolean onHoverEvent(MotionEvent event) {
     67         return false;
     68     }
     69 }
     70