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/*
* Copyright (C) 2013 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.phone;
import android.app.Activity;
import android.app.Dialog;
import android.os.AsyncResult;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.Toast;
import com.android.internal.telephony.CallManager;
import com.android.internal.telephony.MmiCode;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.PhoneConstants;
import java.util.List;
/**
* Used to display a dialog from within the Telephony service when running an USSD code
*/
public class MMIDialogActivity extends Activity {
private static final String TAG = MMIDialogActivity.class.getSimpleName();
private Dialog mMMIDialog;
private Handler mHandler;
private CallManager mCM = PhoneGlobals.getInstance().getCallManager();
private Phone mPhone = PhoneGlobals.getPhone();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case PhoneGlobals.MMI_COMPLETE:
onMMIComplete((MmiCode) ((AsyncResult) msg.obj).result);
break;
case PhoneGlobals.MMI_CANCEL:
onMMICancel();
break;
}
}
};
mCM.registerForMmiComplete(mHandler, PhoneGlobals.MMI_COMPLETE, null);
if (mCM.getState() == PhoneConstants.State.OFFHOOK) {
Toast.makeText(this, R.string.incall_status_dialed_mmi, Toast.LENGTH_SHORT).show();
}
showMMIDialog();
}
@Override
protected void onDestroy() {
super.onDestroy();
if (mMMIDialog != null) {
mMMIDialog.dismiss();
mMMIDialog = null;
}
if (mHandler != null) {
mCM.unregisterForMmiComplete(mHandler);
mHandler = null;
}
}
private void showMMIDialog() {
final List<? extends MmiCode> codes = mPhone.getPendingMmiCodes();
if (codes.size() > 0) {
final MmiCode mmiCode = codes.get(0);
final Message message = Message.obtain(mHandler, PhoneGlobals.MMI_CANCEL);
mMMIDialog = PhoneUtils.displayMMIInitiate(this, mmiCode, message, mMMIDialog);
} else {
finish();
}
}
/**
* Handles an MMI_COMPLETE event, which is triggered by telephony
*/
private void onMMIComplete(MmiCode mmiCode) {
// Check the code to see if the request is ready to
// finish, this includes any MMI state that is not
// PENDING.
// if phone is a CDMA phone display feature code completed message
int phoneType = mPhone.getPhoneType();
if (phoneType == PhoneConstants.PHONE_TYPE_CDMA) {
PhoneUtils.displayMMIComplete(mPhone, this, mmiCode, null, null);
} else if (phoneType == PhoneConstants.PHONE_TYPE_GSM) {
if (mmiCode.getState() != MmiCode.State.PENDING) {
Log.d(TAG, "Got MMI_COMPLETE, finishing dialog activity...");
dismissDialogsAndFinish();
}
}
}
/**
* Handles an MMI_CANCEL event, which is triggered by the button
* (labeled either "OK" or "Cancel") on the "MMI Started" dialog.
* @see PhoneUtils#cancelMmiCode(Phone)
*/
private void onMMICancel() {
Log.v(TAG, "onMMICancel()...");
// First of all, cancel the outstanding MMI code (if possible.)
PhoneUtils.cancelMmiCode(mPhone);
// Regardless of whether the current MMI code was cancelable, the
// PhoneApp will get an MMI_COMPLETE event very soon, which will
// take us to the MMI Complete dialog (see
// PhoneUtils.displayMMIComplete().)
//
// But until that event comes in, we *don't* want to stay here on
// the in-call screen, since we'll be visible in a
// partially-constructed state as soon as the "MMI Started" dialog
// gets dismissed. So let's forcibly bail out right now.
Log.d(TAG, "onMMICancel: finishing InCallScreen...");
dismissDialogsAndFinish();
}
private void dismissDialogsAndFinish() {
if (mMMIDialog != null) {
mMMIDialog.dismiss();
mMMIDialog = null;
}
if (mHandler != null) {
mCM.unregisterForMmiComplete(mHandler);
mHandler = null;
}
finish();
}
}
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