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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.content.Context;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.SwitchPreference;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Switch;
import com.android.ims.ImsConfig;
import com.android.ims.ImsManager;
import com.android.settings.widget.SwitchBar;
/**
* "Wi-Fi Calling settings" screen. This preference screen lets you
* enable/disable Wi-Fi Calling, change mode, enable/disable
* handover while on roaming.
*/
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";
private static final String BUTTON_WFC_ROAM = "wifi_calling_roam";
//UI objects
private SwitchBar mSwitchBar;
private Switch mSwitch;
private ListPreference mButtonWfcMode;
private SwitchPreference mButtonWfcRoam;
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);
int wfcMode = ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY;
if (pref != null) {
pref.setEnabled(isWfcEnabled
&& (state == TelephonyManager.CALL_STATE_IDLE));
ListPreference prefWfcMode = (ListPreference) pref;
wfcMode = Integer.valueOf(prefWfcMode.getValue()).intValue();
}
pref = getPreferenceScreen().findPreference(BUTTON_WFC_ROAM);
if (pref != null) {
pref.setEnabled(isWfcEnabled
&& (wfcMode != ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY)
&& (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();
}
@Override
public void onDestroyView() {
super.onDestroyView();
mSwitchBar.hide();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.wifi_calling_settings);
mButtonWfcMode = (ListPreference) findPreference(BUTTON_WFC_MODE);
mButtonWfcMode.setOnPreferenceChangeListener(this);
mButtonWfcRoam = (SwitchPreference) findPreference(BUTTON_WFC_ROAM);
mButtonWfcRoam.setOnPreferenceChangeListener(this);
}
@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);
}
// 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));
mButtonWfcMode.setSummary(getWfcModeSummary(context, ImsManager.getWfcMode(context)));
mButtonWfcRoam.setChecked(wfcEnabled
&& (wfcMode != ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY)
&& ImsManager.isWfcRoamingEnabledByUser(context));
}
@Override
public void onPause() {
super.onPause();
if (ImsManager.isWfcEnabledByPlatform(getActivity())) {
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
mSwitchBar.removeOnSwitchChangeListener(this);
}
}
/**
* Listens to the state change of the switch.
*/
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
final Context context = getActivity();
ImsManager.setWfcSetting(context, isChecked);
mButtonWfcMode.setEnabled(isChecked);
boolean wfcHandoffEnabled = (ImsManager.getWfcMode(context)
!= ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY);
mButtonWfcRoam.setEnabled(isChecked && wfcHandoffEnabled);
mButtonWfcRoam.setChecked(isChecked && wfcHandoffEnabled
&& ImsManager.isWfcRoamingEnabledByUser(context));
}
@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));
}
boolean wfcHandoffEnabled =
(buttonMode != ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY);
mButtonWfcRoam.setEnabled(wfcHandoffEnabled);
mButtonWfcRoam.setChecked(wfcHandoffEnabled &&
ImsManager.isWfcRoamingEnabledByUser(context));
} else if (preference == mButtonWfcRoam) {
SwitchPreference wfcRoamPref = (SwitchPreference) preference;
wfcRoamPref.setChecked(!wfcRoamPref.isChecked());
ImsManager.setWfcRoamingSetting(context, wfcRoamPref.isChecked());
}
return true;
}
static int getWfcModeSummary(Context context, int wfcMode) {
int resId = R.string.wifi_calling_off_summary;
if (ImsManager.isWfcEnabledByUser(context)) {
switch (wfcMode) {
case ImsConfig.WfcModeFeatureValueConstants.WIFI_ONLY:
resId = R.string.wfc_mode_wifi_only_summary;
break;
case ImsConfig.WfcModeFeatureValueConstants.CELLULAR_PREFERRED:
resId = R.string.wfc_mode_cellular_preferred_summary;
break;
case ImsConfig.WfcModeFeatureValueConstants.WIFI_PREFERRED:
resId = R.string.wfc_mode_wifi_preferred_summary;
break;
default:
Log.e(TAG, "Unexpected WFC mode value: " + wfcMode);
}
}
return resId;
}
}
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