Home | History | Annotate | Download | only in sidepanel 
      1 /*
      2  * Copyright (C) 2015 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.tv.ui.sidepanel;
     18 
     19 import android.view.View;
     20 import android.widget.CompoundButton;
     21 import android.widget.TextView;
     22 import com.android.tv.R;
     23 
     24 public abstract class CompoundButtonItem extends Item {
     25     private static int sDefaultMaxLine = 0;
     26 
     27     private final String mCheckedTitle;
     28     private final String mUncheckedTitle;
     29     private final String mDescription;
     30     private final int mMaxLine;
     31     private boolean mChecked;
     32     private TextView mTextView;
     33     private CompoundButton mCompoundButton;
     34 
     35     public CompoundButtonItem(String title, String description) {
     36         this(title, title, description);
     37     }
     38 
     39     public CompoundButtonItem(String checkedTitle, String uncheckedTitle, String description) {
     40         mCheckedTitle = checkedTitle;
     41         mUncheckedTitle = uncheckedTitle;
     42         mDescription = description;
     43         mMaxLine = 0;
     44     }
     45 
     46     public CompoundButtonItem(
     47             String checkedTitle, String uncheckedTitle, String description, int maxLine) {
     48         mCheckedTitle = checkedTitle;
     49         mUncheckedTitle = uncheckedTitle;
     50         mDescription = description;
     51         mMaxLine = maxLine;
     52     }
     53 
     54     protected abstract int getCompoundButtonId();
     55 
     56     protected int getTitleViewId() {
     57         return R.id.title;
     58     }
     59 
     60     protected int getDescriptionViewId() {
     61         return R.id.description;
     62     }
     63 
     64     @Override
     65     protected void onBind(View view) {
     66         super.onBind(view);
     67         mCompoundButton = (CompoundButton) view.findViewById(getCompoundButtonId());
     68         mTextView = (TextView) view.findViewById(getTitleViewId());
     69         TextView descriptionView = (TextView) view.findViewById(getDescriptionViewId());
     70         if (mDescription != null) {
     71             if (mMaxLine != 0) {
     72                 descriptionView.setMaxLines(mMaxLine);
     73             } else {
     74                 if (sDefaultMaxLine == 0) {
     75                     sDefaultMaxLine =
     76                             view.getContext()
     77                                     .getResources()
     78                                     .getInteger(R.integer.option_item_description_max_lines);
     79                 }
     80                 descriptionView.setMaxLines(sDefaultMaxLine);
     81             }
     82             descriptionView.setVisibility(View.VISIBLE);
     83             descriptionView.setText(mDescription);
     84         } else {
     85             descriptionView.setVisibility(View.GONE);
     86         }
     87     }
     88 
     89     @Override
     90     protected void onUnbind() {
     91         super.onUnbind();
     92         mTextView = null;
     93         mCompoundButton = null;
     94     }
     95 
     96     @Override
     97     protected void onUpdate() {
     98         super.onUpdate();
     99         updateInternal();
    100     }
    101 
    102     public void setChecked(boolean checked) {
    103         if (mChecked != checked) {
    104             mChecked = checked;
    105             updateInternal();
    106         }
    107     }
    108 
    109     public boolean isChecked() {
    110         return mChecked;
    111     }
    112 
    113     private void updateInternal() {
    114         if (isBound()) {
    115             mTextView.setText(mChecked ? mCheckedTitle : mUncheckedTitle);
    116             mCompoundButton.setChecked(mChecked);
    117         }
    118     }
    119 }
    120