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/*
* Copyright (C) 2019 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.settings.wifi.savedaccesspoints2;
import android.content.Context;
import android.text.TextUtils;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.PreferenceGroup;
import androidx.preference.PreferenceScreen;
import com.android.settings.core.BasePreferenceController;
import com.android.settingslib.wifi.WifiEntryPreference;
import com.android.wifitrackerlib.WifiEntry;
import java.util.ArrayList;
import java.util.List;
/**
* Controller that manages a PreferenceGroup, which contains a list of saved access points.
*/
public class SavedAccessPointsPreferenceController2 extends BasePreferenceController implements
Preference.OnPreferenceClickListener {
private PreferenceGroup mPreferenceGroup;
private SavedAccessPointsWifiSettings2 mHost;
@VisibleForTesting
List<WifiEntry> mWifiEntries = new ArrayList<>();
public SavedAccessPointsPreferenceController2(Context context, String preferenceKey) {
super(context, preferenceKey);
}
/**
* Set {@link SavedAccessPointsWifiSettings2} for click callback action.
*/
public SavedAccessPointsPreferenceController2 setHost(SavedAccessPointsWifiSettings2 host) {
mHost = host;
return this;
}
@Override
public int getAvailabilityStatus() {
return mWifiEntries.size() > 0 ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
}
@Override
public void displayPreference(PreferenceScreen screen) {
mPreferenceGroup = screen.findPreference(getPreferenceKey());
updatePreference();
super.displayPreference(screen);
}
void displayPreference(PreferenceScreen screen, List<WifiEntry> wifiEntries) {
if (wifiEntries == null || wifiEntries.isEmpty()) {
mWifiEntries.clear();
} else {
mWifiEntries = wifiEntries;
}
displayPreference(screen);
}
@Override
public boolean onPreferenceClick(Preference preference) {
if (mHost != null) {
mHost.showWifiPage(preference.getKey(), preference.getTitle());
}
return false;
}
/**
* mPreferenceGroup is not in a RecyclerView. To keep TalkBack focus, this method should not
* mPreferenceGroup.removeAll() then mPreferenceGroup.addPreference for mWifiEntries.
*/
private void updatePreference() {
// Remove the Preference of removed WifiEntry.
final List<String> removedPreferenceKeys = new ArrayList<>();
final int preferenceCount = mPreferenceGroup.getPreferenceCount();
for (int i = 0; i < preferenceCount; i++) {
final String key = mPreferenceGroup.getPreference(i).getKey();
if (mWifiEntries.stream().filter(wifiEntry ->
TextUtils.equals(key, wifiEntry.getKey())).count() == 0) {
removedPreferenceKeys.add(key);
}
}
for (String removedPreferenceKey : removedPreferenceKeys) {
mPreferenceGroup.removePreference(
mPreferenceGroup.findPreference(removedPreferenceKey));
}
// Add the Preference of new added WifiEntry.
for (WifiEntry wifiEntry : mWifiEntries) {
if (mPreferenceGroup.findPreference(wifiEntry.getKey()) == null) {
final WifiEntryPreference preference = new WifiEntryPreference(mContext, wifiEntry);
preference.setKey(wifiEntry.getKey());
preference.setOnPreferenceClickListener(this);
mPreferenceGroup.addPreference(preference);
}
}
}
}
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