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/*
* Copyright (C) 2014 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.dialer.util;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.graphics.Point;
import android.os.Bundle;
import android.telecom.TelecomManager;
import android.telephony.TelephonyManager;
import android.text.BidiFormatter;
import android.text.TextDirectionHeuristics;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Toast;
import com.android.dialer.common.LogUtil;
import com.android.dialer.telecom.TelecomUtil;
import java.io.File;
import java.util.Iterator;
import java.util.Random;
/** General purpose utility methods for the Dialer. */
public class DialerUtils {
/**
* Prefix on a dialed number that indicates that the call should be placed through the Wireless
* Priority Service.
*/
private static final String WPS_PREFIX = "*272";
public static final String FILE_PROVIDER_CACHE_DIR = "my_cache";
private static final Random RANDOM = new Random();
/**
* Attempts to start an activity and displays a toast with the default error message if the
* activity is not found, instead of throwing an exception.
*
* @param context to start the activity with.
* @param intent to start the activity with.
*/
public static void startActivityWithErrorToast(Context context, Intent intent) {
startActivityWithErrorToast(context, intent, R.string.activity_not_available);
}
/**
* Attempts to start an activity and displays a toast with a provided error message if the
* activity is not found, instead of throwing an exception.
*
* @param context to start the activity with.
* @param intent to start the activity with.
* @param msgId Resource ID of the string to display in an error message if the activity is not
* found.
*/
public static void startActivityWithErrorToast(
final Context context, final Intent intent, int msgId) {
try {
if ((Intent.ACTION_CALL.equals(intent.getAction()))) {
// All dialer-initiated calls should pass the touch point to the InCallUI
Point touchPoint = TouchPointManager.getInstance().getPoint();
if (touchPoint.x != 0 || touchPoint.y != 0) {
Bundle extras;
// Make sure to not accidentally clobber any existing extras
if (intent.hasExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS)) {
extras = intent.getParcelableExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS);
} else {
extras = new Bundle();
}
extras.putParcelable(TouchPointManager.TOUCH_POINT, touchPoint);
intent.putExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS, extras);
}
if (shouldWarnForOutgoingWps(context, intent.getData().getSchemeSpecificPart())) {
LogUtil.i(
"DialUtils.startActivityWithErrorToast",
"showing outgoing WPS dialog before placing call");
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage(R.string.outgoing_wps_warning);
builder.setPositiveButton(
R.string.dialog_continue,
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
placeCallOrMakeToast(context, intent);
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.create().show();
} else {
placeCallOrMakeToast(context, intent);
}
} else {
context.startActivity(intent);
}
} catch (ActivityNotFoundException e) {
Toast.makeText(context, msgId, Toast.LENGTH_SHORT).show();
}
}
private static void placeCallOrMakeToast(Context context, Intent intent) {
final boolean hasCallPermission = TelecomUtil.placeCall(context, intent);
if (!hasCallPermission) {
// TODO: Make calling activity show request permission dialog and handle
// callback results appropriately.
Toast.makeText(context, "Cannot place call without Phone permission", Toast.LENGTH_SHORT)
.show();
}
}
/**
* Returns whether the user should be warned about an outgoing WPS call. This checks if there is a
* currently active call over LTE. Regardless of the country or carrier, the radio will drop an
* active LTE call if a WPS number is dialed, so this warning is necessary.
*/
@SuppressLint("MissingPermission")
private static boolean shouldWarnForOutgoingWps(Context context, String number) {
if (number != null && number.startsWith(WPS_PREFIX)) {
TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class);
boolean isOnVolte =
telephonyManager.getVoiceNetworkType() == TelephonyManager.NETWORK_TYPE_LTE;
boolean hasCurrentActiveCall =
telephonyManager.getCallState() == TelephonyManager.CALL_STATE_OFFHOOK;
return isOnVolte && hasCurrentActiveCall;
}
return false;
}
/**
* Closes an {@link AutoCloseable}, silently ignoring any checked exceptions. Does nothing if
* null.
*
* @param closeable to close.
*/
public static void closeQuietly(AutoCloseable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (RuntimeException rethrown) {
throw rethrown;
} catch (Exception ignored) {
}
}
}
/**
* Joins a list of {@link CharSequence} into a single {@link CharSequence} seperated by ", ".
*
* @param list List of char sequences to join.
* @return Joined char sequences.
*/
public static CharSequence join(Iterable<CharSequence> list) {
StringBuilder sb = new StringBuilder();
final BidiFormatter formatter = BidiFormatter.getInstance();
final CharSequence separator = ", ";
Iterator<CharSequence> itr = list.iterator();
boolean firstTime = true;
while (itr.hasNext()) {
if (firstTime) {
firstTime = false;
} else {
sb.append(separator);
}
// Unicode wrap the elements of the list to respect RTL for individual strings.
sb.append(
formatter.unicodeWrap(itr.next().toString(), TextDirectionHeuristics.FIRSTSTRONG_LTR));
}
// Unicode wrap the joined value, to respect locale's RTL ordering for the whole list.
return formatter.unicodeWrap(sb.toString());
}
public static void showInputMethod(View view) {
final InputMethodManager imm =
(InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null) {
imm.showSoftInput(view, 0);
}
}
public static void hideInputMethod(View view) {
final InputMethodManager imm =
(InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null) {
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
/**
* Create a File in the cache directory that Dialer's FileProvider knows about so they can be
* shared to other apps.
*/
public static File createShareableFile(Context context) {
long fileId = Math.abs(RANDOM.nextLong());
File parentDir = new File(context.getCacheDir(), FILE_PROVIDER_CACHE_DIR);
if (!parentDir.exists()) {
parentDir.mkdirs();
}
return new File(parentDir, String.valueOf(fileId));
}
}
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