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      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.browser.view;
     18 
     19 import android.content.Context;
     20 import android.graphics.drawable.Drawable;
     21 import android.graphics.drawable.StateListDrawable;
     22 import android.graphics.drawable.TransitionDrawable;
     23 import android.util.AttributeSet;
     24 import android.view.View;
     25 import android.view.View.OnClickListener;
     26 import android.view.ViewConfiguration;
     27 import android.widget.RelativeLayout;
     28 
     29 public class BookmarkContainer extends RelativeLayout implements OnClickListener {
     30 
     31     private OnClickListener mClickListener;
     32 
     33     public BookmarkContainer(Context context) {
     34         super(context);
     35         init();
     36     }
     37 
     38     public BookmarkContainer(Context context, AttributeSet attrs) {
     39         super(context, attrs);
     40         init();
     41     }
     42 
     43     public BookmarkContainer(
     44             Context context, AttributeSet attrs, int defStyle) {
     45         super(context, attrs, defStyle);
     46         init();
     47     }
     48 
     49     void init() {
     50         setFocusable(true);
     51         super.setOnClickListener(this);
     52     }
     53 
     54     @Override
     55     public void setBackgroundDrawable(Drawable d) {
     56         super.setBackgroundDrawable(d);
     57     }
     58 
     59     @Override
     60     public void setOnClickListener(OnClickListener l) {
     61         mClickListener = l;
     62     }
     63 
     64     @Override
     65     protected void drawableStateChanged() {
     66         super.drawableStateChanged();
     67         updateTransitionDrawable(isPressed());
     68     }
     69 
     70     void updateTransitionDrawable(boolean pressed) {
     71         final int longPressTimeout = ViewConfiguration.getLongPressTimeout();
     72         Drawable selector = getBackground();
     73         if (selector != null && selector instanceof StateListDrawable) {
     74             Drawable d = ((StateListDrawable)selector).getCurrent();
     75             if (d != null && d instanceof TransitionDrawable) {
     76                 if (pressed && isLongClickable()) {
     77                     ((TransitionDrawable) d).startTransition(longPressTimeout);
     78                 } else {
     79                     ((TransitionDrawable) d).resetTransition();
     80                 }
     81             }
     82         }
     83     }
     84 
     85     @Override
     86     public void onClick(View view) {
     87         updateTransitionDrawable(false);
     88         if (mClickListener != null) {
     89             mClickListener.onClick(view);
     90         }
     91     }
     92 }
     93