1 /*
2  * Copyright (C) 2013 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.documentsui;
18 
19 import android.content.Context;
20 import android.graphics.Rect;
21 import android.graphics.drawable.Drawable;
22 import android.graphics.drawable.InsetDrawable;
23 import android.util.AttributeSet;
24 import android.widget.FrameLayout;
25 
26 public class DirectoryView extends FrameLayout {
27     private float mPosition = 0f;
28 
29     private int mWidth;
30 
DirectoryView(Context context)31     public DirectoryView(Context context) {
32         super(context);
33     }
34 
DirectoryView(Context context, AttributeSet attrs)35     public DirectoryView(Context context, AttributeSet attrs) {
36         super(context, attrs);
37     }
38 
39     @Override
onSizeChanged(int w, int h, int oldw, int oldh)40     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
41         super.onSizeChanged(w, h, oldw, oldh);
42         mWidth = w;
43         setPosition(mPosition);
44     }
45 
getPosition()46     public float getPosition() {
47         return mPosition;
48     }
49 
setPosition(float position)50     public void setPosition(float position) {
51         mPosition = position;
52         setX((mWidth > 0) ? (mPosition * mWidth) : 0);
53 
54         if (mPosition != 0) {
55             setTranslationZ(getResources().getDimensionPixelSize(R.dimen.dir_elevation));
56         } else {
57             setTranslationZ(0);
58         }
59     }
60 }
61