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/*
* Copyright (C) 2015 Vincent Breitmoser <v.breitmoser@my.amazin.horse>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui;
import java.util.ArrayList;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.ui.util.Notify.Style;
import org.sufficientlysecure.keychain.ui.util.recyclerview.DividerItemDecoration;
import org.sufficientlysecure.keychain.util.Preferences;
import org.sufficientlysecure.keychain.util.Preferences.CacheTTLPrefs;
public class SettingsCacheTTLFragment extends Fragment {
public static final String ARG_TTL_PREFS = "ttl_prefs";
private CacheTTLListAdapter mAdapter;
public static SettingsCacheTTLFragment newInstance(CacheTTLPrefs ttlPrefs) {
Bundle args = new Bundle();
args.putSerializable(ARG_TTL_PREFS, ttlPrefs);
SettingsCacheTTLFragment fragment = new SettingsCacheTTLFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
return inflater.inflate(R.layout.settings_cache_ttl_fragment, null);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
CacheTTLPrefs prefs = (CacheTTLPrefs) getArguments().getSerializable(ARG_TTL_PREFS);
mAdapter = new CacheTTLListAdapter(prefs);
RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.cache_ttl_recycler_view);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setAdapter(mAdapter);
recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));
}
private void savePreference() {
FragmentActivity activity = getActivity();
if (activity == null) {
return;
}
CacheTTLPrefs prefs = mAdapter.getPrefs();
Preferences.getPreferences(activity).setPassphraseCacheTtl(prefs);
}
public class CacheTTLListAdapter extends RecyclerView.Adapter<CacheTTLListAdapter.ViewHolder> {
private final ArrayList<Boolean> mPositionIsChecked;
public CacheTTLListAdapter(CacheTTLPrefs prefs) {
this.mPositionIsChecked = new ArrayList<>();
for (int ttlTime : CacheTTLPrefs.CACHE_TTLS) {
mPositionIsChecked.add(prefs.ttlTimes.contains(ttlTime));
}
}
public CacheTTLPrefs getPrefs() {
ArrayList<String> ttls = new ArrayList<>();
for (int i = 0; i < mPositionIsChecked.size(); i++) {
if (mPositionIsChecked.get(i)) {
ttls.add(Integer.toString(CacheTTLPrefs.CACHE_TTLS.get(i)));
}
}
return new CacheTTLPrefs(ttls);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.settings_cache_ttl_item, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.bind(position);
}
@Override
public int getItemCount() {
return mPositionIsChecked.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
CheckBox mChecked;
TextView mTitle;
public ViewHolder(View itemView) {
super(itemView);
mChecked = (CheckBox) itemView.findViewById(R.id.ttl_selected);
mTitle = (TextView) itemView.findViewById(R.id.ttl_title);
itemView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mChecked.performClick();
}
});
}
public void bind(final int position) {
int ttl = CacheTTLPrefs.CACHE_TTLS.get(position);
boolean isChecked = mPositionIsChecked.get(position);
mTitle.setText(CacheTTLPrefs.CACHE_TTL_NAMES.get(ttl));
// avoid some ui flicker by skipping unnecessary updates
if (mChecked.isChecked() != isChecked) {
mChecked.setChecked(isChecked);
}
mChecked.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setTtlChecked(position);
savePreference();
}
});
}
private void setTtlChecked(int position) {
boolean isChecked = mPositionIsChecked.get(position);
int checkedItems = countCheckedItems();
boolean isLastChecked = isChecked && checkedItems == 1;
boolean isOneTooMany = !isChecked && checkedItems >= 3;
if (isLastChecked) {
Notify.create(getActivity(), R.string.settings_cache_ttl_at_least_one, Style.ERROR).show();
} else if (isOneTooMany) {
Notify.create(getActivity(), R.string.settings_cache_ttl_max_three, Style.ERROR).show();
} else {
mPositionIsChecked.set(position, !isChecked);
}
notifyItemChanged(position);
}
private int countCheckedItems() {
int result = 0;
for (boolean isChecked : mPositionIsChecked) {
if (isChecked) {
result += 1;
}
}
return result;
}
}
}
}
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