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/*
* Copyright (C) 2017 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.voicemail.impl.configui;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.preference.EditTextPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.preference.SwitchPreference;
import android.support.annotation.Nullable;
import android.support.annotation.VisibleForTesting;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telecom.TelecomManager;
import android.text.TextUtils;
import com.android.dialer.common.Assert;
import com.android.dialer.common.concurrent.ThreadUtil;
import com.android.dialer.strictmode.DialerStrictMode;
import com.android.voicemail.VoicemailComponent;
/**
* Fragment to edit the override values for the {@link import
* com.android.voicemail.impl.OmtpVvmCarrierConfigHelper}
*/
public class ConfigOverrideFragment extends PreferenceFragment
implements OnPreferenceChangeListener {
/**
* Any preference with key that starts with this prefix will be written to the dialer carrier
* config.
*/
@VisibleForTesting static final String CONFIG_OVERRIDE_KEY_PREFIX = "vvm_config_override_key_";
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
PreferenceManager.setDefaultValues(getActivity(), R.xml.vvm_config_override, false);
addPreferencesFromResource(R.xml.vvm_config_override);
// add listener so the value of a EditTextPreference will be updated to the summary.
for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); i++) {
Preference preference = getPreferenceScreen().getPreference(i);
preference.setOnPreferenceChangeListener(this);
updatePreference(preference);
}
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
Assert.isMainThread();
ThreadUtil.postOnUiThread(() -> updatePreference(preference));
return true;
}
private void updatePreference(Preference preference) {
if (preference instanceof EditTextPreference) {
EditTextPreference editTextPreference = (EditTextPreference) preference;
editTextPreference.setSummary(editTextPreference.getText());
}
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
if (TextUtils.equals(
preference.getKey(), getString(R.string.vvm_config_override_load_current_key))) {
loadCurrentConfig();
}
return super.onPreferenceTreeClick(preferenceScreen, preference);
}
/**
* Loads the config for the currently carrier into the override values, from the dialer or the
* carrier config app. This is a "reset" button to load the defaults.
*/
private void loadCurrentConfig() {
Context context = getActivity();
PhoneAccountHandle phoneAccountHandle =
context
.getSystemService(TelecomManager.class)
.getDefaultOutgoingPhoneAccount(PhoneAccount.SCHEME_VOICEMAIL);
PersistableBundle config =
VoicemailComponent.get(context).getVoicemailClient().getConfig(context, phoneAccountHandle);
for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); i++) {
Preference preference = getPreferenceScreen().getPreference(i);
String key = preference.getKey();
if (!key.startsWith(CONFIG_OVERRIDE_KEY_PREFIX)) {
continue;
}
String configKey = key.substring(CONFIG_OVERRIDE_KEY_PREFIX.length());
if (configKey.endsWith("bool")) {
((SwitchPreference) preference).setChecked(config.getBoolean(configKey));
} else if (configKey.endsWith("int")) {
((EditTextPreference) preference).setText(String.valueOf(config.getInt(configKey)));
} else if (configKey.endsWith("string")) {
((EditTextPreference) preference).setText(config.getString(configKey));
} else if (configKey.endsWith("string_array")) {
((EditTextPreference) preference).setText(toCsv(config.getStringArray(configKey)));
} else {
throw Assert.createAssertionFailException("unknown type for key " + configKey);
}
updatePreference(preference);
}
}
public static boolean isOverridden(Context context) {
return DialerStrictMode.bypass(
() ->
PreferenceManager.getDefaultSharedPreferences(context)
.getBoolean(context.getString(R.string.vvm_config_override_enabled_key), false));
}
public static PersistableBundle getConfig(Context context) {
Assert.checkState(isOverridden(context));
PersistableBundle result = new PersistableBundle();
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
for (String key : preferences.getAll().keySet()) {
if (!key.startsWith(CONFIG_OVERRIDE_KEY_PREFIX)) {
continue;
}
String configKey = key.substring(CONFIG_OVERRIDE_KEY_PREFIX.length());
if (configKey.endsWith("bool")) {
result.putBoolean(configKey, preferences.getBoolean(key, false));
} else if (configKey.endsWith("int")) {
result.putInt(configKey, Integer.valueOf(preferences.getString(key, null)));
} else if (configKey.endsWith("string")) {
result.putString(configKey, preferences.getString(key, null));
} else if (configKey.endsWith("string_array")) {
result.putStringArray(configKey, fromCsv(preferences.getString(key, null)));
} else {
throw Assert.createAssertionFailException("unknown type for key " + configKey);
}
}
return result;
}
private static String toCsv(String[] array) {
if (array == null) {
return "";
}
StringBuilder result = new StringBuilder();
for (String element : array) {
if (result.length() != 0) {
result.append(",");
}
result.append(element);
}
return result.toString();
};
private static String[] fromCsv(String csv) {
return csv.split(",");
}
}
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