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/*
* Copyright (C) 2011 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.server.telecom;
// TODO: Needed for move to system service: import com.android.internal.R;
import com.android.internal.os.SomeArgs;
import com.android.internal.telephony.SmsApplication;
import android.content.ComponentName;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.telecom.Connection;
import android.telecom.Log;
import android.telecom.Response;
import android.telephony.PhoneNumberUtils;
import android.telephony.SmsManager;
import android.telephony.SubscriptionManager;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
/**
* Helper class to manage the "Respond via Message" feature for incoming calls.
*/
public class RespondViaSmsManager extends CallsManagerListenerBase {
private static final int MSG_SHOW_SENT_TOAST = 2;
private final CallsManager mCallsManager;
private final TelecomSystem.SyncRoot mLock;
private final Handler mHandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_SHOW_SENT_TOAST: {
SomeArgs args = (SomeArgs) msg.obj;
try {
String toastMessage = (String) args.arg1;
Context context = (Context) args.arg2;
showMessageSentToast(toastMessage, context);
} finally {
args.recycle();
}
break;
}
}
}
};
public RespondViaSmsManager(CallsManager callsManager, TelecomSystem.SyncRoot lock) {
mCallsManager = callsManager;
mLock = lock;
}
/**
* Read the (customizable) canned responses from SharedPreferences,
* or from defaults if the user has never actually brought up
* the Settings UI.
*
* The interface of this method is asynchronous since it does disk I/O.
*
* @param response An object to receive an async reply, which will be called from
* the main thread.
* @param context The context.
*/
public void loadCannedTextMessages(final Response<Void, List<String>> response,
final Context context) {
new Thread() {
@Override
public void run() {
Log.d(RespondViaSmsManager.this, "loadCannedResponses() starting");
// This function guarantees that QuickResponses will be in our
// SharedPreferences with the proper values considering there may be
// old QuickResponses in Telephony pre L.
QuickResponseUtils.maybeMigrateLegacyQuickResponses(context);
final SharedPreferences prefs = context.getSharedPreferences(
QuickResponseUtils.SHARED_PREFERENCES_NAME,
Context.MODE_PRIVATE | Context.MODE_MULTI_PROCESS);
final Resources res = context.getResources();
final ArrayList<String> textMessages = new ArrayList<>(
QuickResponseUtils.NUM_CANNED_RESPONSES);
// Note the default values here must agree with the corresponding
// android:defaultValue attributes in respond_via_sms_settings.xml.
textMessages.add(0, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_1,
res.getString(R.string.respond_via_sms_canned_response_1)));
textMessages.add(1, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_2,
res.getString(R.string.respond_via_sms_canned_response_2)));
textMessages.add(2, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_3,
res.getString(R.string.respond_via_sms_canned_response_3)));
textMessages.add(3, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_4,
res.getString(R.string.respond_via_sms_canned_response_4)));
Log.d(RespondViaSmsManager.this,
"loadCannedResponses() completed, found responses: %s",
textMessages.toString());
synchronized (mLock) {
response.onResult(null, textMessages);
}
}
}.start();
}
@Override
public void onIncomingCallRejected(Call call, boolean rejectWithMessage, String textMessage) {
if (rejectWithMessage
&& call.getHandle() != null
&& !call.can(Connection.CAPABILITY_CAN_SEND_RESPONSE_VIA_CONNECTION)) {
int subId = mCallsManager.getPhoneAccountRegistrar().getSubscriptionIdForPhoneAccount(
call.getTargetPhoneAccount());
rejectCallWithMessage(call.getContext(), call.getHandle().getSchemeSpecificPart(),
textMessage, subId, call.getName());
}
}
private void showMessageSentToast(final String phoneNumber, final Context context) {
// ...and show a brief confirmation to the user (since
// otherwise it's hard to be sure that anything actually
// happened.)
final Resources res = context.getResources();
final String formatString = res.getString(
R.string.respond_via_sms_confirmation_format);
final String confirmationMsg = String.format(formatString, phoneNumber);
int startingPosition = confirmationMsg.indexOf(phoneNumber);
int endingPosition = startingPosition + phoneNumber.length();
Spannable styledConfirmationMsg = new SpannableString(confirmationMsg);
PhoneNumberUtils.addTtsSpan(styledConfirmationMsg, startingPosition, endingPosition);
Toast.makeText(context, styledConfirmationMsg,
Toast.LENGTH_LONG).show();
// TODO: If the device is locked, this toast won't actually ever
// be visible! (That's because we're about to dismiss the call
// screen, which means that the device will return to the
// keyguard. But toasts aren't visible on top of the keyguard.)
// Possible fixes:
// (1) Is it possible to allow a specific Toast to be visible
// on top of the keyguard?
// (2) Artificially delay the dismissCallScreen() call by 3
// seconds to allow the toast to be seen?
// (3) Don't use a toast at all; instead use a transient state
// of the InCallScreen (perhaps via the InCallUiState
// progressIndication feature), and have that state be
// visible for 3 seconds before calling dismissCallScreen().
}
/**
* Reject the call with the specified message. If message is null this call is ignored.
*/
private void rejectCallWithMessage(Context context, String phoneNumber, String textMessage,
int subId, String contactName) {
if (TextUtils.isEmpty(textMessage)) {
Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: empty text message. ");
return;
}
if (!SubscriptionManager.isValidSubscriptionId(subId)) {
Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: Invalid SubId: " +
subId);
return;
}
SmsManager smsManager = SmsManager.getSmsManagerForSubscriptionId(subId);
try {
smsManager.sendTextMessage(phoneNumber, null, textMessage, null /*sentIntent*/,
null /*deliveryIntent*/);
SomeArgs args = SomeArgs.obtain();
args.arg1 = !TextUtils.isEmpty(contactName) ? contactName : phoneNumber;
args.arg2 = context;
mHandler.obtainMessage(MSG_SHOW_SENT_TOAST, args).sendToTarget();
} catch (IllegalArgumentException e) {
Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: " +
e.getMessage());
}
}
}
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