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/*
* 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.settings;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceScreen;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Switch;
import android.widget.TextView;
import com.android.ims.ImsConfig;
import com.android.ims.ImsManager;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.telephony.imsphone.ImsPhone;
import com.android.settings.widget.SwitchBar;
/**
* "Wi-Fi Calling settings" screen. This preference screen lets you
* enable/disable Wi-Fi Calling and change Wi-Fi Calling mode.
*/
public class WifiCallingSettings extends SettingsPreferenceFragment
implements SwitchBar.OnSwitchChangeListener,
Preference.OnPreferenceChangeListener {
private static final String TAG = "WifiCallingSettings";
//String keys for preference lookup
private static final String BUTTON_WFC_MODE = "wifi_calling_mode";
//UI objects
private SwitchBar mSwitchBar;
private Switch mSwitch;
private ListPreference mButtonWfcMode;
private TextView mEmptyView;
private boolean mValidListener = false;
private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
/*
* Enable/disable controls when in/out of a call and depending on
* TTY mode and TTY support over VoLTE.
* @see android.telephony.PhoneStateListener#onCallStateChanged(int,
* java.lang.String)
*/
@Override
public void onCallStateChanged(int state, String incomingNumber) {
final SettingsActivity activity = (SettingsActivity) getActivity();
boolean isNonTtyOrTtyOnVolteEnabled = ImsManager
.isNonTtyOrTtyOnVolteEnabled(activity);
final SwitchBar switchBar = activity.getSwitchBar();
boolean isWfcEnabled = switchBar.getSwitch().isChecked()
&& isNonTtyOrTtyOnVolteEnabled;
switchBar.setEnabled((state == TelephonyManager.CALL_STATE_IDLE)
&& isNonTtyOrTtyOnVolteEnabled);
Preference pref = getPreferenceScreen().findPreference(BUTTON_WFC_MODE);
if (pref != null) {
pref.setEnabled(isWfcEnabled
&& (state == TelephonyManager.CALL_STATE_IDLE));
}
}
};
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
final SettingsActivity activity = (SettingsActivity) getActivity();
mSwitchBar = activity.getSwitchBar();
mSwitch = mSwitchBar.getSwitch();
mSwitchBar.show();
mEmptyView = (TextView) getView().findViewById(android.R.id.empty);
getListView().setEmptyView(mEmptyView);
mEmptyView.setText(R.string.wifi_calling_off_explanation);
}
@Override
public void onDestroyView() {
super.onDestroyView();
mSwitchBar.hide();
}
private void showAlert(Intent intent) {
Context context = getActivity();
CharSequence title = intent.getCharSequenceExtra(ImsPhone.EXTRA_KEY_ALERT_TITLE);
CharSequence message = intent.getCharSequenceExtra(ImsPhone.EXTRA_KEY_ALERT_MESSAGE);
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage(message)
.setTitle(title)
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
private IntentFilter mIntentFilter;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(ImsManager.ACTION_IMS_REGISTRATION_ERROR)) {
// If this fragment is active then we are immediately
// showing alert on screen. There is no need to add
// notification in this case.
//
// In order to communicate to ImsPhone that it should
// not show notification, we are changing result code here.
setResultCode(Activity.RESULT_CANCELED);
// UX requirement is to disable WFC in case of "permanent" registration failures.
mSwitch.setChecked(false);
showAlert(intent);
}
}
};
@Override
protected int getMetricsCategory() {
return MetricsLogger.WIFI_CALLING;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.wifi_calling_settings);
mButtonWfcMode = (ListPreference) findPreference(BUTTON_WFC_MODE);
mButtonWfcMode.setOnPreferenceChangeListener(this);
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(ImsManager.ACTION_IMS_REGISTRATION_ERROR);
}
@Override
public void onResume() {
super.onResume();
final Context context = getActivity();
if (ImsManager.isWfcEnabledByPlatform(context)) {
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
mSwitchBar.addOnSwitchChangeListener(this);
mValidListener = true;
}
// NOTE: Buttons will be enabled/disabled in mPhoneStateListener
boolean wfcEnabled = ImsManager.isWfcEnabledByUser(context)
&& ImsManager.isNonTtyOrTtyOnVolteEnabled(context);
mSwitch.setChecked(wfcEnabled);
int wfcMode = ImsManager.getWfcMode(context);
mButtonWfcMode.setValue(Integer.toString(wfcMode));
updateButtonWfcMode(context, wfcEnabled, wfcMode);
context.registerReceiver(mIntentReceiver, mIntentFilter);
Intent intent = getActivity().getIntent();
if (intent.getBooleanExtra(ImsPhone.EXTRA_KEY_ALERT_SHOW, false)) {
showAlert(intent);
}
}
@Override
public void onPause() {
super.onPause();
final Context context = getActivity();
if (mValidListener) {
mValidListener = false;
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
mSwitchBar.removeOnSwitchChangeListener(this);
}
context.unregisterReceiver(mIntentReceiver);
}
/**
* Listens to the state change of the switch.
*/
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
final Context context = getActivity();
ImsManager.setWfcSetting(context, isChecked);
int wfcMode = ImsManager.getWfcMode(context);
updateButtonWfcMode(context, isChecked, wfcMode);
if (isChecked) {
MetricsLogger.action(getActivity(), getMetricsCategory(), wfcMode);
} else {
MetricsLogger.action(getActivity(), getMetricsCategory(), -1);
}
}
private void updateButtonWfcMode(Context context, boolean wfcEnabled, int wfcMode) {
mButtonWfcMode.setSummary(getWfcModeSummary(context, wfcMode));
mButtonWfcMode.setEnabled(wfcEnabled);
final PreferenceScreen preferenceScreen = getPreferenceScreen();
if (wfcEnabled) {
preferenceScreen.addPreference(mButtonWfcMode);
} else {
preferenceScreen.removePreference(mButtonWfcMode);
}
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final Context context = getActivity();
if (preference == mButtonWfcMode) {
mButtonWfcMode.setValue((String) newValue);
int buttonMode = Integer.valueOf((String) newValue);
int currentMode = ImsManager.getWfcMode(context);
if (buttonMode != currentMode) {
ImsManager.setWfcMode(context, buttonMode);
mButtonWfcMode.setSummary(getWfcModeSummary(context, buttonMode));
MetricsLogger.action(getActivity(), getMetricsCategory(), buttonMode);
}
}
return true;
}
static int getWfcModeSummary(Context context, int wfcMode) {
int resId = com.android.internal.R.string.wifi_calling_off_summary;
if (ImsManager.isWfcEnabledByUser(context)) {
switch (wfcMode) {
case ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY:
resId = com.android.internal.R.string.wfc_mode_wifi_only_summary;
break;
case ImsConfig.WfcModeFeatureValueConstants.CELLULAR_PREFERRED:
resId = com.android.internal.R.string.wfc_mode_cellular_preferred_summary;
break;
case ImsConfig.WfcModeFeatureValueConstants.WIFI_PREFERRED:
resId = com.android.internal.R.string.wfc_mode_wifi_preferred_summary;
break;
default:
Log.e(TAG, "Unexpected WFC mode value: " + wfcMode);
}
}
return resId;
}
}