1 files changed, 130 insertions, 0 deletions
diff --git a/src/com/android/tv/ui/sidepanel/ChannelCheckItem.java b/src/com/android/tv/ui/sidepanel/ChannelCheckItem.java
new file mode 100644
index 00000000..8389675e
--- /dev/null
+++ b/src/com/android/tv/ui/sidepanel/ChannelCheckItem.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.tv.ui.sidepanel;
+
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.TextView;
+
+import com.android.tv.R;
+import com.android.tv.data.Channel;
+import com.android.tv.data.ChannelDataManager;
+import com.android.tv.data.ChannelDataManager.ChannelListener;
+import com.android.tv.data.OnCurrentProgramUpdatedListener;
+import com.android.tv.data.Program;
+import com.android.tv.data.ProgramDataManager;
+
+public abstract class ChannelCheckItem extends CompoundButtonItem {
+    private final ChannelDataManager mChannelDataManager;
+    private final ProgramDataManager mProgramDataManager;
+    private Channel mChannel;
+    private TextView mProgramTitleView;
+    private TextView mChannelNumberView;
+    private final ChannelListener mChannelListener = new ChannelListener() {
+        @Override
+        public void onChannelRemoved(Channel channel) { }
+
+        @Override
+        public void onChannelUpdated(Channel channel) {
+            mChannel = channel;
+        }
+    };
+
+    private final OnCurrentProgramUpdatedListener mOnCurrentProgramUpdatedListener
+            = new OnCurrentProgramUpdatedListener() {
+        @Override
+        public void onCurrentProgramUpdated(long channelId, Program program) {
+            updateProgramTitle(program);
+        }
+    };
+
+    public ChannelCheckItem(Channel channel,
+            ChannelDataManager channelDataManager,
+            ProgramDataManager programDataManager) {
+        super(channel.getDisplayName(), "");
+        mChannel = channel;
+        mChannelDataManager = channelDataManager;
+        mProgramDataManager = programDataManager;
+    }
+
+    protected Channel getChannel() {
+        return mChannel;
+    }
+
+    @Override
+    protected int getResourceId() {
+        return R.layout.option_item_channel_check;
+    }
+
+    @Override
+    protected int getCompoundButtonId() {
+        return R.id.check_box;
+    }
+
+    @Override
+    protected int getTitleViewId() {
+        return R.id.channel_name;
+    }
+
+    @Override
+    protected int getDescriptionViewId() {
+        return R.id.program_title;
+    }
+
+    @Override
+    protected void onBind(View view) {
+        super.onBind(view);
+        mChannelNumberView = (TextView) view.findViewById(R.id.channel_number);
+        mProgramTitleView = (TextView) view.findViewById(R.id.program_title);
+        mChannelDataManager.addChannelListener(mChannel.getId(), mChannelListener);
+        mProgramDataManager.addOnCurrentProgramUpdatedListener(mChannel.getId(),
+                mOnCurrentProgramUpdatedListener);
+    }
+
+    @Override
+    protected void onUpdate() {
+        super.onUpdate();
+        mChannelNumberView.setText(getChannel().getDisplayNumber());
+        updateProgramTitle(mProgramDataManager.getCurrentProgram(mChannel.getId()));
+    }
+
+    @Override
+    protected void onUnbind() {
+        mChannelDataManager.removeChannelListener(mChannel.getId(), mChannelListener);
+        mProgramDataManager.removeOnCurrentProgramUpdatedListener(mChannel.getId(),
+                mOnCurrentProgramUpdatedListener);
+        mProgramTitleView = null;
+        mChannelNumberView = null;
+        super.onUnbind();
+    }
+
+    @Override
+    protected void onSelected() {
+        setChecked(!isChecked());
+    }
+
+    private void updateProgramTitle(Program program) {
+        String title = null;
+        if (program != null) {
+            title = program.getTitle();
+        }
+        if (TextUtils.isEmpty(title)) {
+            title = mProgramTitleView.getContext().getString(R.string.no_program_information);
+        }
+        mProgramTitleView.setText(title);
+    }
+}