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/*
* Copyright (C) 2017 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.settings.development;
import static com.android.settings.development.DevelopmentOptionsActivityRequestCodes.REQUEST_MOCK_LOCATION_APP;
import android.Manifest;
import android.app.Activity;
import android.app.AppOpsManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.text.TextUtils;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import com.android.settings.R;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.development.DeveloperOptionsPreferenceController;
import java.util.List;
public class MockLocationAppPreferenceController extends DeveloperOptionsPreferenceController
implements PreferenceControllerMixin, OnActivityResultListener {
private static final String MOCK_LOCATION_APP_KEY = "mock_location_app";
private static final int[] MOCK_LOCATION_APP_OPS = new int[]{AppOpsManager.OP_MOCK_LOCATION};
private final DevelopmentSettingsDashboardFragment mFragment;
private final AppOpsManager mAppsOpsManager;
private final PackageManager mPackageManager;
public MockLocationAppPreferenceController(Context context,
DevelopmentSettingsDashboardFragment fragment) {
super(context);
mFragment = fragment;
mAppsOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
mPackageManager = context.getPackageManager();
}
@Override
public String getPreferenceKey() {
return MOCK_LOCATION_APP_KEY;
}
@Override
public boolean handlePreferenceTreeClick(Preference preference) {
if (!TextUtils.equals(preference.getKey(), getPreferenceKey())) {
return false;
}
final Intent intent = new Intent(mContext, AppPicker.class);
intent.putExtra(AppPicker.EXTRA_REQUESTIING_PERMISSION,
Manifest.permission.ACCESS_MOCK_LOCATION);
mFragment.startActivityForResult(intent, REQUEST_MOCK_LOCATION_APP);
return true;
}
@Override
public void updateState(Preference preference) {
updateMockLocation();
}
@Override
public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != REQUEST_MOCK_LOCATION_APP || resultCode != Activity.RESULT_OK) {
return false;
}
writeMockLocation(data.getAction());
updateMockLocation();
return true;
}
@Override
public void onDeveloperOptionsDisabled() {
super.onDeveloperOptionsDisabled();
removeAllMockLocations();
}
private void updateMockLocation() {
final String mockLocationApp = getCurrentMockLocationApp();
if (!TextUtils.isEmpty(mockLocationApp)) {
mPreference.setSummary(
mContext.getResources().getString(R.string.mock_location_app_set,
getAppLabel(mockLocationApp)));
} else {
mPreference.setSummary(
mContext.getResources().getString(R.string.mock_location_app_not_set));
}
}
private void writeMockLocation(String mockLocationAppName) {
removeAllMockLocations();
// Enable the app op of the new mock location app if such.
if (!TextUtils.isEmpty(mockLocationAppName)) {
try {
final ApplicationInfo ai = mPackageManager.getApplicationInfo(
mockLocationAppName, PackageManager.MATCH_DISABLED_COMPONENTS);
mAppsOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
mockLocationAppName, AppOpsManager.MODE_ALLOWED);
} catch (PackageManager.NameNotFoundException e) {
/* ignore */
}
}
}
private String getAppLabel(String mockLocationApp) {
try {
final ApplicationInfo ai = mPackageManager.getApplicationInfo(
mockLocationApp, PackageManager.MATCH_DISABLED_COMPONENTS);
final CharSequence appLabel = mPackageManager.getApplicationLabel(ai);
return appLabel != null ? appLabel.toString() : mockLocationApp;
} catch (PackageManager.NameNotFoundException e) {
return mockLocationApp;
}
}
private void removeAllMockLocations() {
// Disable the app op of the previous mock location app if such.
final List<AppOpsManager.PackageOps> packageOps = mAppsOpsManager.getPackagesForOps(
MOCK_LOCATION_APP_OPS);
if (packageOps == null) {
return;
}
// Should be one but in case we are in a bad state due to use of command line tools.
for (AppOpsManager.PackageOps packageOp : packageOps) {
if (packageOp.getOps().get(0).getMode() != AppOpsManager.MODE_ERRORED) {
removeMockLocationForApp(packageOp.getPackageName());
}
}
}
private void removeMockLocationForApp(String appName) {
try {
final ApplicationInfo ai = mPackageManager.getApplicationInfo(
appName, PackageManager.MATCH_DISABLED_COMPONENTS);
mAppsOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
appName, AppOpsManager.MODE_ERRORED);
} catch (PackageManager.NameNotFoundException e) {
/* ignore */
}
}
@VisibleForTesting
String getCurrentMockLocationApp() {
final List<AppOpsManager.PackageOps> packageOps = mAppsOpsManager.getPackagesForOps(
MOCK_LOCATION_APP_OPS);
if (packageOps != null) {
for (AppOpsManager.PackageOps packageOp : packageOps) {
if (packageOp.getOps().get(0).getMode() == AppOpsManager.MODE_ALLOWED) {
return packageOps.get(0).getPackageName();
}
}
}
return null;
}
}
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