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/*
* Copyright (C) 2019 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.packageinstaller.role.model;
import android.app.role.RoleManager;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Build;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.preference.Preference;
import com.android.packageinstaller.permission.utils.CollectionUtils;
import com.android.packageinstaller.role.ui.TwoTargetPreference;
import com.android.packageinstaller.role.utils.UserUtils;
import com.android.permissioncontroller.R;
import java.util.List;
import java.util.Objects;
/**
* Class for behavior of the home role.
*
* @see com.android.settings.applications.DefaultAppSettings
* @see com.android.settings.applications.defaultapps.DefaultHomePreferenceController
* @see com.android.settings.applications.defaultapps.DefaultHomePicker
*/
public class HomeRoleBehavior implements RoleBehavior {
private static final String LOG_TAG = HomeRoleBehavior.class.getSimpleName();
@Override
public boolean isAvailableAsUser(@NonNull Role role, @NonNull UserHandle user,
@NonNull Context context) {
return !UserUtils.isWorkProfile(user, context);
}
/**
* @see com.android.server.pm.PackageManagerService#getDefaultHomeActivity(int)
*/
@Nullable
@Override
public String getFallbackHolder(@NonNull Role role, @NonNull Context context) {
PackageManager packageManager = context.getPackageManager();
Intent intent = role.getRequiredComponents().get(0).getIntentFilterData().createIntent();
List<ResolveInfo> resolveInfos = packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY | PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE);
String packageName = null;
int priority = Integer.MIN_VALUE;
int resolveInfosSize = resolveInfos.size();
for (int i = 0; i < resolveInfosSize; i++) {
ResolveInfo resolveInfo = resolveInfos.get(i);
// Leave the fallback to PackageManagerService if there is only the fallback home in
// Settings, because if we fallback to it here, we cannot fallback to a normal home
// later, and user cannot see the fallback home in the UI anyway.
if (isSettingsApplication(resolveInfo.activityInfo.applicationInfo, context)) {
continue;
}
if (resolveInfo.priority > priority) {
packageName = resolveInfo.activityInfo.packageName;
priority = resolveInfo.priority;
} else if (resolveInfo.priority == priority) {
packageName = null;
}
}
return packageName;
}
@Override
public boolean isVisibleAsUser(@NonNull Role role, @NonNull UserHandle user,
@NonNull Context context) {
return VisibilityMixin.isVisible("config_showDefaultHome", context);
}
@Override
public void preparePreferenceAsUser(@NonNull Role role, @NonNull TwoTargetPreference preference,
@NonNull UserHandle user, @NonNull Context context) {
TwoTargetPreference.OnSecondTargetClickListener listener = null;
RoleManager roleManager = context.getSystemService(RoleManager.class);
String packageName = CollectionUtils.firstOrNull(roleManager.getRoleHoldersAsUser(
role.getName(), user));
if (packageName != null) {
Intent intent = new Intent(Intent.ACTION_APPLICATION_PREFERENCES)
.setPackage(packageName)
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PackageManager userPackageManager = UserUtils.getUserContext(context, user)
.getPackageManager();
ActivityInfo activityInfo = intent.resolveActivityInfo(userPackageManager, 0);
if (activityInfo != null && activityInfo.exported) {
listener = preference2 -> {
try {
context.startActivity(intent);
} catch (ActivityNotFoundException e) {
Log.e(LOG_TAG, "Cannot start activity for home app preferences", e);
}
};
}
}
preference.setOnSecondTargetClickListener(listener);
}
@Override
public boolean isApplicationVisibleAsUser(@NonNull Role role,
@NonNull ApplicationInfo applicationInfo, @NonNull UserHandle user,
@NonNull Context context) {
// Home is not available for work profile, so we can just use the current user.
return !isSettingsApplication(applicationInfo, context);
}
@Override
public void prepareApplicationPreferenceAsUser(@NonNull Role role,
@NonNull Preference preference, @NonNull ApplicationInfo applicationInfo,
@NonNull UserHandle user, @NonNull Context context) {
boolean missingWorkProfileSupport = isMissingWorkProfileSupport(applicationInfo, context);
preference.setEnabled(!missingWorkProfileSupport);
preference.setSummary(missingWorkProfileSupport ? context.getString(
R.string.home_missing_work_profile_support) : null);
}
private boolean isMissingWorkProfileSupport(@NonNull ApplicationInfo applicationInfo,
@NonNull Context context) {
boolean hasWorkProfile = UserUtils.getWorkProfile(context) != null;
if (!hasWorkProfile) {
return false;
}
boolean isWorkProfileSupported = applicationInfo.targetSdkVersion
>= Build.VERSION_CODES.LOLLIPOP;
return !isWorkProfileSupported;
}
private boolean isSettingsApplication(@NonNull ApplicationInfo applicationInfo,
@NonNull Context context) {
PackageManager packageManager = context.getPackageManager();
ResolveInfo resolveInfo = packageManager.resolveActivity(new Intent(
Settings.ACTION_SETTINGS), PackageManager.MATCH_DEFAULT_ONLY
| PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE);
if (resolveInfo == null || resolveInfo.activityInfo == null) {
return false;
}
return Objects.equals(applicationInfo.packageName, resolveInfo.activityInfo.packageName);
}
@Override
public void onHolderSelectedAsUser(@NonNull Role role, @NonNull String packageName,
@NonNull UserHandle user, @NonNull Context context) {
// Launch the new home app so the change is immediately visible even if the home button is
// not pressed.
Intent intent = new Intent(Intent.ACTION_MAIN)
.addCategory(Intent.CATEGORY_HOME)
.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
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