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/*
* Copyright (C) 2014 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;
import android.content.ContentValues;
import android.media.tv.TvContract;
import android.net.Uri;
import android.os.Bundle;
import android.support.v17.leanback.widget.VerticalGridView;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;
import com.android.internal.util.Preconditions;
import com.android.tv.R;
import com.android.tv.TvActivity;
import com.android.tv.data.Channel;
import com.android.tv.input.TvInput;
public class EditChannelsFragment extends BaseSideFragment {
private static final int ACTION_SHOW_ALL = 0;
private static final int ACTION_HIDE_ALL = 1;
private TvInput mSelectedInput;
private TvActivity mTvActivity;
private Item[] mItems;
private String[] mActions;
private Channel[] mChannels;
private int mBrowsableChannelCount;
private static final class Item {
private static final int TYPE_ACTION = 0;
private static final int TYPE_CHANNEL = 1;
private static final int TYPE_DIVIDER = 2;
private Item(int type, int action, Channel channel) {
mType = type;
mAction = action;
Preconditions.checkState(!(type == TYPE_CHANNEL && channel == null));
mChannel = channel;
}
private int mType;
private int mAction;
private Channel mChannel;
}
public EditChannelsFragment(Channel[] channels) {
mChannels = channels;
mBrowsableChannelCount = 0;
for (Channel channel : channels) {
if (channel.isBrowsable()) {
++mBrowsableChannelCount;
}
}
}
@Override
public void onDetach() {
super.onDetach();
mTvActivity.onSideFragmentCanceled(getInitiator());
mTvActivity.hideOverlays(false, false, true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mTvActivity = (TvActivity) getActivity();
mSelectedInput = mTvActivity.getSelectedTvInput();
mActions = getActivity().getResources().getStringArray(R.array.edit_channels_actions);
mItems = new Item[mActions.length + mChannels.length + 1];
int index = 0;
for (; index < mActions.length; ++index) {
mItems[index] = new Item(Item.TYPE_ACTION, index ,null);
}
mItems[index++] = new Item(Item.TYPE_DIVIDER, 0, null);
for (Channel channel : mChannels) {
mItems[index++] = new Item(Item.TYPE_CHANNEL, 0, channel);
}
String displayName = mSelectedInput.getDisplayName();
String title = String.format(getString(R.string.edit_channels_title), displayName);
initialize(title, mItems, R.layout.option_fragment, R.layout.edit_channels_item,
R.color.option_item_background, R.color.option_item_focused_background,
R.dimen.edit_channels_item_height);
if (mBrowsableChannelCount <= 0) {
Toast.makeText(getActivity(), R.string.all_the_channels_are_unchecked,
Toast.LENGTH_SHORT).show();
}
return super.onCreateView(inflater, container, savedInstanceState);
}
@Override
public void onResume() {
super.onResume();
// TODO: the current channel should be initially focused.
setSelectedPosition(0);
}
@Override
public void onBindView(View v, int position, Object tag, boolean prevSelected) {
super.onBindView(v, position, tag, prevSelected);
CheckBox checkBox = (CheckBox) v.findViewById(R.id.check_box);
TextView textView = (TextView) v.findViewById(R.id.channel_text_view);
View itemContainer = v.findViewById(R.id.item_container);
View divider = v.findViewById(R.id.divider);
Item item = (Item) tag;
if (item.mType == Item.TYPE_ACTION) {
checkBox.setVisibility(View.GONE);
textView.setText(mActions[item.mAction]);
} else if (item.mType == Item.TYPE_CHANNEL) {
checkBox.setVisibility(View.VISIBLE);
checkBox.setChecked(item.mChannel.isBrowsable());
String channelNumber = item.mChannel.getDisplayNumber();
String channelName = item.mChannel.getDisplayName();
String channelString;
if (TextUtils.isEmpty(channelName)) {
channelString = channelNumber;
} else {
channelString = String.format(getString(R.string.channel_item),
channelNumber, channelName);
}
textView.setText(channelString);
}
divider.setVisibility(item.mType == Item.TYPE_DIVIDER ? View.VISIBLE : View.GONE);
itemContainer.setVisibility(item.mType != Item.TYPE_DIVIDER ? View.VISIBLE : View.GONE);
v.setFocusable(item.mType != Item.TYPE_DIVIDER);
}
@Override
public void onItemSelected(View v, int position, Object tag) {
Item item = (Item) tag;
if (item.mType == Item.TYPE_ACTION) {
if (item.mAction == ACTION_SHOW_ALL) {
updateAllChannels(true);
} else if (item.mAction == ACTION_HIDE_ALL) {
updateAllChannels(false);
}
} else if (item.mType == Item.TYPE_CHANNEL) {
CheckBox checkBox = (CheckBox) v.findViewById(R.id.check_box);
boolean checked = checkBox.isChecked();
Channel channel = item.mChannel;
Uri uri = TvContract.buildChannelUri(channel.getId());
ContentValues values = new ContentValues();
values.put(TvContract.Channels.COLUMN_BROWSABLE, checked ? 0 : 1);
getActivity().getContentResolver().update(uri, values, null, null);
channel.setBrowsable(!checked);
checkBox.setChecked(!checked);
mBrowsableChannelCount += checked ? -1 : 1;
if (mBrowsableChannelCount <= 0) {
Toast.makeText(getActivity(), R.string.all_the_channels_are_unchecked,
Toast.LENGTH_SHORT).show();
}
}
super.onItemSelected(v, position, tag);
}
private void updateAllChannels(boolean browsable) {
Uri uri = mSelectedInput.buildChannelsUri(null);
ContentValues values = new ContentValues();
values.put(TvContract.Channels.COLUMN_BROWSABLE, browsable ? 1 : 0);
getActivity().getContentResolver().update(uri, values, null, null);
for (Channel channel : mChannels) {
channel.setBrowsable(browsable);
}
mAdapter.notifyDataSetChanged();
if (browsable) {
mBrowsableChannelCount = mChannels.length;
} else {
mBrowsableChannelCount = 0;
Toast.makeText(getActivity(), R.string.all_the_channels_are_unchecked,
Toast.LENGTH_SHORT).show();
}
}
@Override
public void onItemFocusChanged(View v, boolean focusGained, int position, Object tag) {
super.onItemFocusChanged(v, focusGained, position, tag);
}
}
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