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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.contacts.detail;
18 
19 import com.android.contacts.R;
20 
21 import android.content.Context;
22 import android.util.AttributeSet;
23 import android.view.View;
24 import android.widget.RelativeLayout;
25 import android.widget.TextView;
26 
27 /**
28  * This is a tab in the {@link ContactDetailTabCarousel}.
29  */
30 public class CarouselTab extends RelativeLayout implements ViewOverlay {
31 
32     private static final String TAG = CarouselTab.class.getSimpleName();
33 
34     private TextView mLabelView;
35 
36     /**
37      * This view adds an alpha layer over the entire tab.
38      */
39     private View mAlphaLayer;
40 
41     /**
42      * This view adds a layer over the entire tab so that when visible, it intercepts all touch
43      * events on the tab.
44      */
45     private View mTouchInterceptLayer;
46 
CarouselTab(Context context, AttributeSet attrs)47     public CarouselTab(Context context, AttributeSet attrs) {
48         super(context, attrs);
49     }
50 
51     @Override
onFinishInflate()52     protected void onFinishInflate() {
53         super.onFinishInflate();
54 
55         mLabelView = (TextView) findViewById(R.id.label);
56         mLabelView.setClickable(true);
57 
58         mAlphaLayer = findViewById(R.id.alpha_overlay);
59         mTouchInterceptLayer = findViewById(R.id.touch_intercept_overlay);
60     }
61 
setLabel(String label)62     public void setLabel(String label) {
63         mLabelView.setText(label);
64     }
65 
showSelectedState()66     public void showSelectedState() {
67         mLabelView.setSelected(true);
68     }
69 
showDeselectedState()70     public void showDeselectedState() {
71         mLabelView.setSelected(false);
72     }
73 
74     @Override
disableTouchInterceptor()75     public void disableTouchInterceptor() {
76         // This shouldn't be called because there is no need to disable the touch interceptor if
77         // there is no content within the tab that needs to be clicked.
78     }
79 
80     @Override
enableTouchInterceptor(OnClickListener clickListener)81     public void enableTouchInterceptor(OnClickListener clickListener) {
82         if (mTouchInterceptLayer != null) {
83             mTouchInterceptLayer.setVisibility(View.VISIBLE);
84             mTouchInterceptLayer.setOnClickListener(clickListener);
85         }
86     }
87 
88     @Override
setAlphaLayerValue(float alpha)89     public void setAlphaLayerValue(float alpha) {
90         ContactDetailDisplayUtils.setAlphaOnViewBackground(mAlphaLayer, alpha);
91     }
92 }
93