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.text.TextUtils; 20 import android.view.View; 21 import android.widget.TextView; 22 import com.android.tv.R; 23 import com.android.tv.data.ChannelDataManager; 24 import com.android.tv.data.ChannelDataManager.ChannelListener; 25 import com.android.tv.data.OnCurrentProgramUpdatedListener; 26 import com.android.tv.data.Program; 27 import com.android.tv.data.ProgramDataManager; 28 import com.android.tv.data.api.Channel; 29 30 public abstract class ChannelCheckItem extends CompoundButtonItem { 31 private final ChannelDataManager mChannelDataManager; 32 private final ProgramDataManager mProgramDataManager; 33 private Channel mChannel; 34 private TextView mProgramTitleView; 35 private TextView mChannelNumberView; 36 private final ChannelListener mChannelListener = 37 new ChannelListener() { 38 @Override 39 public void onChannelRemoved(Channel channel) {} 40 41 @Override 42 public void onChannelUpdated(Channel channel) { 43 mChannel = channel; 44 } 45 }; 46 47 private final OnCurrentProgramUpdatedListener mOnCurrentProgramUpdatedListener = 48 new OnCurrentProgramUpdatedListener() { 49 @Override 50 public void onCurrentProgramUpdated(long channelId, Program program) { 51 updateProgramTitle(program); 52 } 53 }; 54 ChannelCheckItem( Channel channel, ChannelDataManager channelDataManager, ProgramDataManager programDataManager)55 public ChannelCheckItem( 56 Channel channel, 57 ChannelDataManager channelDataManager, 58 ProgramDataManager programDataManager) { 59 super(channel.getDisplayName(), ""); 60 mChannel = channel; 61 mChannelDataManager = channelDataManager; 62 mProgramDataManager = programDataManager; 63 } 64 getChannel()65 protected Channel getChannel() { 66 return mChannel; 67 } 68 69 @Override getResourceId()70 protected int getResourceId() { 71 return R.layout.option_item_channel_check; 72 } 73 74 @Override getCompoundButtonId()75 protected int getCompoundButtonId() { 76 return R.id.check_box; 77 } 78 79 @Override getTitleViewId()80 protected int getTitleViewId() { 81 return R.id.channel_name; 82 } 83 84 @Override getDescriptionViewId()85 protected int getDescriptionViewId() { 86 return R.id.program_title; 87 } 88 89 @Override onBind(View view)90 protected void onBind(View view) { 91 super.onBind(view); 92 mChannelNumberView = (TextView) view.findViewById(R.id.channel_number); 93 mProgramTitleView = (TextView) view.findViewById(R.id.program_title); 94 mChannelDataManager.addChannelListener(mChannel.getId(), mChannelListener); 95 mProgramDataManager.addOnCurrentProgramUpdatedListener( 96 mChannel.getId(), mOnCurrentProgramUpdatedListener); 97 } 98 99 @Override onUpdate()100 protected void onUpdate() { 101 super.onUpdate(); 102 mChannelNumberView.setText(getChannel().getDisplayNumber()); 103 updateProgramTitle(mProgramDataManager.getCurrentProgram(mChannel.getId())); 104 } 105 106 @Override onUnbind()107 protected void onUnbind() { 108 mChannelDataManager.removeChannelListener(mChannel.getId(), mChannelListener); 109 mProgramDataManager.removeOnCurrentProgramUpdatedListener( 110 mChannel.getId(), mOnCurrentProgramUpdatedListener); 111 mProgramTitleView = null; 112 mChannelNumberView = null; 113 super.onUnbind(); 114 } 115 116 @Override onSelected()117 protected void onSelected() { 118 setChecked(!isChecked()); 119 } 120 updateProgramTitle(Program program)121 private void updateProgramTitle(Program program) { 122 String title = null; 123 if (program != null) { 124 title = program.getTitle(); 125 } 126 if (TextUtils.isEmpty(title)) { 127 title = mProgramTitleView.getContext().getString(R.string.no_program_information); 128 } 129 mProgramTitleView.setText(title); 130 } 131 } 132