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/*
* Copyright (C) 2021 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.tv.settings.autofill;
import android.Manifest;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.provider.Settings;
import android.service.autofill.AutofillService;
import android.service.autofill.AutofillServiceInfo;
import android.text.TextUtils;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.android.settingslib.applications.DefaultAppInfo;
import java.util.ArrayList;
import java.util.List;
/**
* Helper class for autofill related settings.
*/
public class AutofillHelper {
private static final String TAG = "AutofillHelper";
static final Intent AUTOFILL_PROBE = new Intent(AutofillService.SERVICE_INTERFACE);
/**
* Get a list of autofill services.
*/
@NonNull
public static List<DefaultAppInfo> getAutofillCandidates(@NonNull Context context,
@NonNull PackageManager pm, int myUserId) {
final List<DefaultAppInfo> candidates = new ArrayList<>();
final List<ResolveInfo> resolveInfos = pm.queryIntentServices(
AUTOFILL_PROBE, PackageManager.GET_META_DATA);
for (ResolveInfo info : resolveInfos) {
final String permission = info.serviceInfo.permission;
if (Manifest.permission.BIND_AUTOFILL_SERVICE.equals(permission)
|| Manifest.permission.BIND_AUTOFILL.equals(permission)) {
candidates.add(new DefaultAppInfo(context, pm, myUserId, new ComponentName(
info.serviceInfo.packageName, info.serviceInfo.name)));
}
}
return candidates;
}
/**
* Get flattened ComponentName of current autofill service
*/
@Nullable
public static String getCurrentAutofill(@NonNull Context context) {
return Settings.Secure.getString(context.getContentResolver(),
Settings.Secure.AUTOFILL_SERVICE);
}
/**
* Get flattened ComponentName of current autofill service
*/
@Nullable
public static ComponentName getCurrentAutofillAsComponentName(@NonNull Context context) {
String flattenedName = getCurrentAutofill(context);
return TextUtils.isEmpty(flattenedName)
? null : ComponentName.unflattenFromString(flattenedName);
}
/**
* Find the current autofill service from the list.
*/
@Nullable
public static DefaultAppInfo getCurrentAutofill(@NonNull Context context,
@NonNull List<DefaultAppInfo> candidates) {
final ComponentName name = getCurrentAutofillAsComponentName(context);
for (int i = 0; i < candidates.size(); i++) {
DefaultAppInfo appInfo = candidates.get(i);
if ((name == null && appInfo.componentName == null)
|| (name != null && name.equals(appInfo.componentName))) {
return appInfo;
}
}
return null;
}
/**
* Get the Intent for settings activity of autofill service. Returns null if does not exist.
*/
@Nullable
public static Intent getAutofillSettingsIntent(@NonNull Context context,
@NonNull PackageManager pm, @Nullable DefaultAppInfo appInfo) {
if (appInfo == null || appInfo.componentName == null) {
return null;
}
String plattenString = appInfo.componentName.flattenToString();
final List<ResolveInfo> resolveInfos = pm.queryIntentServices(
AUTOFILL_PROBE, PackageManager.GET_META_DATA);
for (ResolveInfo resolveInfo : resolveInfos) {
final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
final String flattenKey = new ComponentName(
serviceInfo.packageName, serviceInfo.name).flattenToString();
if (TextUtils.equals(plattenString, flattenKey)) {
final String settingsActivity;
try {
settingsActivity = new AutofillServiceInfo(context, serviceInfo)
.getSettingsActivity();
} catch (SecurityException e) {
// Service does not declare the proper permission, ignore it.
Log.w(TAG, "Error getting info for " + serviceInfo + ": " + e);
return null;
}
if (TextUtils.isEmpty(settingsActivity)) {
return null;
}
return new Intent(Intent.ACTION_MAIN).setComponent(
new ComponentName(serviceInfo.packageName, settingsActivity));
}
}
return null;
}
/**
* Set autofill service and write to settings.
*/
public static void setCurrentAutofill(@NonNull Context context, @Nullable String id) {
if (id == null) {
throw new IllegalArgumentException("Null ID");
}
Settings.Secure.putString(context.getContentResolver(), Settings.Secure.AUTOFILL_SERVICE,
id);
}
}
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