1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.phone; 18 19 import android.app.Activity; 20 import android.app.Dialog; 21 import android.content.Intent; 22 import android.os.AsyncResult; 23 import android.os.Bundle; 24 import android.os.Handler; 25 import android.os.Message; 26 import android.telephony.SubscriptionManager; 27 import android.util.Log; 28 import android.widget.Toast; 29 30 import com.android.internal.telephony.CallManager; 31 import com.android.internal.telephony.MmiCode; 32 import com.android.internal.telephony.Phone; 33 import com.android.internal.telephony.PhoneConstants; 34 35 import java.util.ArrayList; 36 import java.util.List; 37 38 /** 39 * Used to display a dialog from within the Telephony service when running an USSD code 40 */ 41 public class MMIDialogActivity extends Activity { 42 private static final String TAG = MMIDialogActivity.class.getSimpleName(); 43 44 private Dialog mMMIDialog; 45 46 private Handler mHandler; 47 48 private CallManager mCM = PhoneGlobals.getInstance().getCallManager(); 49 private Phone mPhone; 50 51 52 @Override 53 protected void onCreate(Bundle savedInstanceState) { 54 super.onCreate(savedInstanceState); 55 Intent intent = getIntent(); 56 int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY, 57 SubscriptionManager.DEFAULT_SUBSCRIPTION_ID); 58 mPhone = PhoneGlobals.getPhone(subId); 59 mHandler = new Handler() { 60 @Override 61 public void handleMessage(Message msg) { 62 switch (msg.what) { 63 case PhoneGlobals.MMI_COMPLETE: 64 onMMIComplete((MmiCode) ((AsyncResult) msg.obj).result); 65 break; 66 case PhoneGlobals.MMI_CANCEL: 67 onMMICancel(); 68 break; 69 } 70 } 71 }; 72 Log.d(TAG, "onCreate; registering for mmi complete."); 73 mCM.registerForMmiComplete(mHandler, PhoneGlobals.MMI_COMPLETE, null); 74 showMMIDialog(); 75 } 76 77 @Override 78 protected void onDestroy() { 79 super.onDestroy(); 80 81 if (mMMIDialog != null) { 82 mMMIDialog.dismiss(); 83 mMMIDialog = null; 84 } 85 if (mHandler != null) { 86 mCM.unregisterForMmiComplete(mHandler); 87 mHandler = null; 88 } 89 } 90 91 private void showMMIDialog() { 92 final List<MmiCode> codes = new ArrayList<>(mPhone.getPendingMmiCodes()); 93 // If the phone has an IMS phone, also get pending imS MMIsl. 94 if (mPhone.getImsPhone() != null) { 95 codes.addAll(mPhone.getImsPhone().getPendingMmiCodes()); 96 } 97 if (codes.size() > 0) { 98 final MmiCode mmiCode = codes.get(0); 99 final Message message = Message.obtain(mHandler, PhoneGlobals.MMI_CANCEL); 100 Log.d(TAG, "showMMIDialog: mmiCode = " + mmiCode); 101 mMMIDialog = PhoneUtils.displayMMIInitiate(this, mmiCode, message, mMMIDialog); 102 } else { 103 Log.d(TAG, "showMMIDialog: no pending MMIs; finishing"); 104 finish(); 105 } 106 } 107 108 /** 109 * Handles an MMI_COMPLETE event, which is triggered by telephony 110 */ 111 private void onMMIComplete(MmiCode mmiCode) { 112 // Check the code to see if the request is ready to 113 // finish, this includes any MMI state that is not 114 // PENDING. 115 Log.d(TAG, "onMMIComplete: mmi=" + mmiCode); 116 117 // if phone is a CDMA phone display feature code completed message 118 int phoneType = mPhone.getPhoneType(); 119 if (phoneType == PhoneConstants.PHONE_TYPE_CDMA) { 120 PhoneUtils.displayMMIComplete(mPhone, this, mmiCode, null, null); 121 } else if (phoneType == PhoneConstants.PHONE_TYPE_GSM) { 122 if (mmiCode.getState() != MmiCode.State.PENDING) { 123 Log.d(TAG, "onMMIComplete: Got MMI_COMPLETE, finishing dialog activity..."); 124 dismissDialogsAndFinish(); 125 } else { 126 Log.d(TAG, "onMMIComplete: still pending."); 127 } 128 } 129 } 130 131 /** 132 * Handles an MMI_CANCEL event, which is triggered by the button 133 * (labeled either "OK" or "Cancel") on the "MMI Started" dialog. 134 * @see PhoneUtils#cancelMmiCode(Phone) 135 */ 136 private void onMMICancel() { 137 Log.v(TAG, "onMMICancel()..."); 138 139 // First of all, cancel the outstanding MMI code (if possible.) 140 PhoneUtils.cancelMmiCode(mPhone); 141 142 // Regardless of whether the current MMI code was cancelable, the 143 // PhoneApp will get an MMI_COMPLETE event very soon, which will 144 // take us to the MMI Complete dialog (see 145 // PhoneUtils.displayMMIComplete().) 146 // 147 // But until that event comes in, we *don't* want to stay here on 148 // the in-call screen, since we'll be visible in a 149 // partially-constructed state as soon as the "MMI Started" dialog 150 // gets dismissed. So let's forcibly bail out right now. 151 Log.d(TAG, "onMMICancel: finishing MMI dialog..."); 152 dismissDialogsAndFinish(); 153 } 154 155 private void dismissDialogsAndFinish() { 156 if (mMMIDialog != null) { 157 mMMIDialog.dismiss(); 158 mMMIDialog = null; 159 } 160 if (mHandler != null) { 161 mCM.unregisterForMmiComplete(mHandler); 162 mHandler = null; 163 } 164 Log.v(TAG, "dismissDialogsAndFinish"); 165 finish(); 166 } 167 } 168
