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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.ui;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.os.Bundle;
import android.os.UserHandle;
import android.util.ArrayMap;
import android.util.Log;
import android.util.Pair;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.StringRes;
import androidx.lifecycle.ViewModelProviders;
import androidx.preference.Preference;
import androidx.preference.PreferenceManager;
import androidx.preference.PreferenceScreen;
import com.android.packageinstaller.permission.utils.Utils;
import com.android.packageinstaller.role.model.Role;
import com.android.packageinstaller.role.model.Roles;
import com.android.permissioncontroller.R;
import java.util.List;
/**
* Fragment for a special app access.
*/
public class SpecialAppAccessFragment extends SettingsFragment
implements Preference.OnPreferenceClickListener {
private static final String LOG_TAG = SpecialAppAccessFragment.class.getSimpleName();
private static final String PREFERENCE_EXTRA_APPLICATION_INFO =
"com.android.packageinstaller.role.ui.extra.APPLICATION_INFO";
private String mRoleName;
private Role mRole;
private SpecialAppAccessViewModel mViewModel;
/**
* Create a new instance of this fragment.
*
* @param roleName the name of the role for the special app access
*
* @return a new instance of this fragment
*/
@NonNull
public static SpecialAppAccessFragment newInstance(@NonNull String roleName) {
SpecialAppAccessFragment fragment = new SpecialAppAccessFragment();
Bundle arguments = new Bundle();
arguments.putString(Intent.EXTRA_ROLE_NAME, roleName);
fragment.setArguments(arguments);
return fragment;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle arguments = getArguments();
mRoleName = arguments.getString(Intent.EXTRA_ROLE_NAME);
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Activity activity = requireActivity();
mRole = Roles.get(activity).get(mRoleName);
activity.setTitle(mRole.getLabelResource());
mViewModel = ViewModelProviders.of(this, new SpecialAppAccessViewModel.Factory(mRole,
activity.getApplication())).get(SpecialAppAccessViewModel.class);
mViewModel.getRoleLiveData().observe(this, this::onRoleChanged);
mViewModel.observeManageRoleHolderState(this, this::onManageRoleHolderStateChanged);
}
@Override
@StringRes
protected int getEmptyTextResource() {
return R.string.special_app_access_no_apps;
}
private void onRoleChanged(
@NonNull List<Pair<ApplicationInfo, Boolean>> qualifyingApplications) {
PreferenceManager preferenceManager = getPreferenceManager();
Context context = preferenceManager.getContext();
PreferenceScreen preferenceScreen = getPreferenceScreen();
ArrayMap<String, Preference> oldPreferences = new ArrayMap<>();
if (preferenceScreen == null) {
preferenceScreen = preferenceManager.createPreferenceScreen(context);
setPreferenceScreen(preferenceScreen);
} else {
for (int i = preferenceScreen.getPreferenceCount() - 1; i >= 0; --i) {
Preference preference = preferenceScreen.getPreference(i);
preferenceScreen.removePreference(preference);
oldPreferences.put(preference.getKey(), preference);
}
}
int qualifyingApplicationsSize = qualifyingApplications.size();
for (int i = 0; i < qualifyingApplicationsSize; i++) {
Pair<ApplicationInfo, Boolean> qualifyingApplication = qualifyingApplications.get(i);
ApplicationInfo qualifyingApplicationInfo = qualifyingApplication.first;
boolean isHolderPackage = qualifyingApplication.second;
String key = qualifyingApplicationInfo.packageName + '_'
+ qualifyingApplicationInfo.uid;
AppIconSwitchPreference preference = (AppIconSwitchPreference) oldPreferences.get(
key);
if (preference == null) {
preference = new AppIconSwitchPreference(context);
preference.setKey(key);
preference.setIcon(Utils.getBadgedIcon(context, qualifyingApplicationInfo));
preference.setTitle(Utils.getAppLabel(qualifyingApplicationInfo, context));
preference.setPersistent(false);
preference.setOnPreferenceChangeListener((preference2, newValue) -> false);
preference.setOnPreferenceClickListener(this);
preference.getExtras().putParcelable(PREFERENCE_EXTRA_APPLICATION_INFO,
qualifyingApplicationInfo);
}
preference.setChecked(isHolderPackage);
// TODO: Ordering?
preferenceScreen.addPreference(preference);
}
updateState();
}
private void onManageRoleHolderStateChanged(@NonNull ManageRoleHolderStateLiveData liveData,
int state) {
switch (state) {
case ManageRoleHolderStateLiveData.STATE_SUCCESS:
liveData.resetState();
break;
case ManageRoleHolderStateLiveData.STATE_FAILURE:
liveData.resetState();
// TODO: STOPSHIP: Notify user.
break;
}
}
@Override
public boolean onPreferenceClick(@NonNull Preference preference) {
String key = preference.getKey();
ManageRoleHolderStateLiveData liveData = mViewModel.getManageRoleHolderStateLiveData(key,
this);
if (liveData.getValue() != ManageRoleHolderStateLiveData.STATE_IDLE) {
Log.i(LOG_TAG, "Trying to set special app access while another request is on-going");
return true;
}
ApplicationInfo applicationInfo = preference.getExtras().getParcelable(
PREFERENCE_EXTRA_APPLICATION_INFO);
String packageName = applicationInfo.packageName;
UserHandle user = UserHandle.getUserHandleForUid(applicationInfo.uid);
boolean add = !((AppIconSwitchPreference) preference).isChecked();
liveData.manageRoleHolderAsUser(mRoleName, packageName, user, add, requireContext());
return true;
}
}
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