/*
* Copyright (C) 2006 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.contacts;
import com.android.internal.telephony.ITelephony;
import android.app.AlertDialog;
import android.app.KeyguardManager;
import android.app.ProgressDialog;
import android.content.AsyncQueryHandler;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.provider.Telephony.Intents;
import android.telephony.PhoneNumberUtils;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.Toast;
/**
* Helper class to listen for some magic character sequences
* that are handled specially by the dialer.
*/
public class SpecialCharSequenceMgr {
private static final String TAG = "SpecialCharSequenceMgr";
private static final String MMI_IMEI_DISPLAY = "*#06#";
/** This class is never instantiated. */
private SpecialCharSequenceMgr() {
}
static boolean handleChars(Context context, String input, EditText textField) {
return handleChars(context, input, false, textField);
}
static boolean handleChars(Context context, String input) {
return handleChars(context, input, false, null);
}
static boolean handleChars(Context context, String input, boolean useSystemWindow,
EditText textField) {
//get rid of the separators so that the string gets parsed correctly
String dialString = PhoneNumberUtils.stripSeparators(input);
if (handleIMEIDisplay(context, dialString, useSystemWindow)
|| handlePinEntry(context, dialString)
|| handleAdnEntry(context, dialString, textField)
|| handleSecretCode(context, dialString)) {
return true;
}
return false;
}
/**
* Handles secret codes to launch arbitrary activities in the form of *#*#<code>#*#*.
* If a secret code is encountered an Intent is started with the android_secret_code://<code>
* URI.
*
* @param context the context to use
* @param input the text to check for a secret code in
* @return true if a secret code was encountered
*/
static boolean handleSecretCode(Context context, String input) {
// Secret codes are in the form *#*#<code>#*#*
int len = input.length();
if (len > 8 && input.startsWith("*#*#") && input.endsWith("#*#*")) {
Intent intent = new Intent(Intents.SECRET_CODE_ACTION,
Uri.parse("android_secret_code://" + input.substring(4, len - 4)));
context.sendBroadcast(intent);
return true;
}
return false;
}
/**
* Handle ADN requests by filling in the SIM contact number into the requested
* EditText.
*
* This code works alongside the Asynchronous query handler {@link QueryHandler}
* and query cancel handler implemented in {@link SimContactQueryCookie}.
*/
static boolean handleAdnEntry(Context context, String input, EditText textField) {
/* ADN entries are of the form "N(N)(N)#" */
// if the phone is keyguard-restricted, then just ignore this
// input. We want to make sure that sim card contacts are NOT
// exposed unless the phone is unlocked, and this code can be
// accessed from the emergency dialer.
KeyguardManager keyguardManager =
(KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
if (keyguardManager.inKeyguardRestrictedInputMode()) {
return false;
}
int len = input.length();
if ((len > 1) && (len < 5) && (input.endsWith("#"))) {
try {
// get the ordinal number of the sim contact
int index = Integer.parseInt(input.substring(0, len-1));
// The original code that navigated to a SIM Contacts list view did not
// highlight the requested contact correctly, a requirement for PTCRB
// certification. This behaviour is consistent with the UI paradigm
// for touch-enabled lists, so it does not make sense to try to work
// around it. Instead we fill in the the requested phone number into
// the dialer text field.
// create the async query handler
QueryHandler handler = new QueryHandler (context.getContentResolver());
// create the cookie object
SimContactQueryCookie sc = new SimContactQueryCookie(index - 1, handler,
ADN_QUERY_TOKEN);
// setup the cookie fields
sc.contactNum = index - 1;
sc.setTextField(textField);
// create the progress dialog
sc.progressDialog = new ProgressDialog(context);
sc.progressDialog.setTitle(R.string.simContacts_title);
sc.progressDialog.setMessage(context.getText(R.string.simContacts_emptyLoading));
sc.progressDialog.setIndeterminate(true);
sc.progressDialog.setCancelable(true);
sc.progressDialog.setOnCancelListener(sc);
sc.progressDialog.getWindow().addFlags(
WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
// display the progress dialog
sc.progressDialog.show();
// run the query.
handler.startQuery(ADN_QUERY_TOKEN, sc, Uri.parse("content://sim/adn"),
new String[]{ADN_PHONE_NUMBER_COLUMN_NAME}, null, null, null);
return true;
} catch (NumberFormatException ex) {
// Ignore
}
}
return false;
}
static boolean handlePinEntry(Context context, String input) {
if ((input.startsWith("**04") || input.startsWith("**05")) && input.endsWith("#")) {
try {
return ITelephony.Stub.asInterface(ServiceManager.getService("phone"))
.handlePinMmi(input);
} catch (RemoteException e) {
Log.e(TAG, "Failed to handlePinMmi due to remote exception");
return false;
}
}
return false;
}
static boolean handleIMEIDisplay(Context context, String input, boolean useSystemWindow) {
if (input.equals(MMI_IMEI_DISPLAY)) {
showIMEIPanel(context, useSystemWindow);
return true;
}
return false;
}
static void showIMEIPanel(Context context, boolean useSystemWindow) {
String imeiStr = ((TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE))
.getDeviceId();
AlertDialog alert = new AlertDialog.Builder(context)
.setTitle(R.string.imei)
.setMessage(imeiStr)
.setPositiveButton(android.R.string.ok, null)
.setCancelable(false)
.show();
alert.getWindow().setType(WindowManager.LayoutParams.TYPE_PRIORITY_PHONE);
}
/*******
* This code is used to handle SIM Contact queries
*******/
private static final String ADN_PHONE_NUMBER_COLUMN_NAME = "number";
private static final String ADN_NAME_COLUMN_NAME = "name";
private static final int ADN_QUERY_TOKEN = -1;
/**
* Cookie object that contains everything we need to communicate to the
* handler's onQuery Complete, as well as what we need in order to cancel
* the query (if requested).
*
* Note, access to the textField field is going to be synchronized, because
* the user can request a cancel at any time through the UI.
*/
private static class SimContactQueryCookie implements DialogInterface.OnCancelListener{
public ProgressDialog progressDialog;
public int contactNum;
// Used to identify the query request.
private int mToken;
private QueryHandler mHandler;
// The text field we're going to update
private EditText textField;
public SimContactQueryCookie(int number, QueryHandler handler, int token) {
contactNum = number;
mHandler = handler;
mToken = token;
}
/**
* Synchronized getter for the EditText.
*/
public synchronized EditText getTextField() {
return textField;
}
/**
* Synchronized setter for the EditText.
*/
public synchronized void setTextField(EditText text) {
textField = text;
}
/**
* Cancel the ADN query by stopping the operation and signaling
* the cookie that a cancel request is made.
*/
public synchronized void onCancel(DialogInterface dialog) {
// close the progress dialog
if (progressDialog != null) {
progressDialog.dismiss();
}
// setting the textfield to null ensures that the UI does NOT get
// updated.
textField = null;
// Cancel the operation if possible.
mHandler.cancelOperation(mToken);
}
}
/**
* Asynchronous query handler that services requests to look up ADNs
*
* Queries originate from {@link handleAdnEntry}.
*/
private static class QueryHandler extends AsyncQueryHandler {
public QueryHandler(ContentResolver cr) {
super(cr);
}
/**
* Override basic onQueryComplete to fill in the textfield when
* we're handed the ADN cursor.
*/
@Override
protected void onQueryComplete(int token, Object cookie, Cursor c) {
SimContactQueryCookie sc = (SimContactQueryCookie) cookie;
// close the progress dialog.
sc.progressDialog.dismiss();
// get the EditText to update or see if the request was cancelled.
EditText text = sc.getTextField();
// if the textview is valid, and the cursor is valid and postionable
// on the Nth number, then we update the text field and display a
// toast indicating the caller name.
if ((c != null) && (text != null) && (c.moveToPosition(sc.contactNum))) {
String name = c.getString(c.getColumnIndexOrThrow(ADN_NAME_COLUMN_NAME));
String number = c.getString(c.getColumnIndexOrThrow(ADN_PHONE_NUMBER_COLUMN_NAME));
// fill the text in.
text.getText().replace(0, 0, number);
// display the name as a toast
Context context = sc.progressDialog.getContext();
name = context.getString(R.string.menu_callNumber, name);
Toast.makeText(context, name, Toast.LENGTH_SHORT)
.show();
}
}
}
}
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