| /* |
| * Copyright (C) 2015 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.applications.appinfo; |
| |
| import android.app.AppOpsManager; |
| import android.app.settings.SettingsEnums; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.appcompat.app.AlertDialog; |
| import androidx.preference.Preference; |
| import androidx.preference.Preference.OnPreferenceChangeListener; |
| import androidx.preference.Preference.OnPreferenceClickListener; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| import com.android.settings.applications.AppInfoWithHeader; |
| import com.android.settings.applications.AppStateAppOpsBridge.PermissionState; |
| import com.android.settings.applications.AppStateOverlayBridge; |
| import com.android.settings.applications.AppStateOverlayBridge.OverlayState; |
| import com.android.settings.overlay.FeatureFactory; |
| import com.android.settingslib.applications.ApplicationsState.AppEntry; |
| import com.android.settingslib.core.instrumentation.MetricsFeatureProvider; |
| |
| public class DrawOverlayDetails extends AppInfoWithHeader implements OnPreferenceChangeListener, |
| OnPreferenceClickListener { |
| |
| private static final String KEY_APP_OPS_SETTINGS_SWITCH = "app_ops_settings_switch"; |
| private static final String LOG_TAG = "DrawOverlayDetails"; |
| |
| // Use a bridge to get the overlay details but don't initialize it to connect with all state. |
| // TODO: Break out this functionality into its own class. |
| private AppStateOverlayBridge mOverlayBridge; |
| private AppOpsManager mAppOpsManager; |
| private SwitchPreference mSwitchPref; |
| private OverlayState mOverlayState; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| Context context = getActivity(); |
| mOverlayBridge = new AppStateOverlayBridge(context, mState, null); |
| mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); |
| |
| if (!Utils.isSystemAlertWindowEnabled(context)) { |
| mPackageInfo = null; |
| return; |
| } |
| |
| // find preferences |
| addPreferencesFromResource(R.xml.draw_overlay_permissions_details); |
| mSwitchPref = findPreference(KEY_APP_OPS_SETTINGS_SWITCH); |
| |
| // install event listeners |
| mSwitchPref.setOnPreferenceChangeListener(this); |
| } |
| |
| // Override here so we don't have an empty screen |
| @Override |
| public View onCreateView(LayoutInflater inflater, |
| ViewGroup container, |
| Bundle savedInstanceState) { |
| // if we don't have a package info, show a page saying this is unsupported |
| if (mPackageInfo == null) { |
| return inflater.inflate(R.layout.manage_applications_apps_unsupported, null); |
| } |
| return super.onCreateView(inflater, container, savedInstanceState); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| mOverlayBridge.release(); |
| } |
| |
| @Override |
| public boolean onPreferenceClick(Preference preference) { |
| return false; |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| if (preference == mSwitchPref) { |
| if (mOverlayState != null && (Boolean) newValue != mOverlayState.isPermissible()) { |
| setCanDrawOverlay(!mOverlayState.isPermissible()); |
| refreshUi(); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| private void setCanDrawOverlay(boolean newState) { |
| logSpecialPermissionChange(newState, mPackageName); |
| mAppOpsManager.setMode(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, |
| mPackageInfo.applicationInfo.uid, mPackageName, newState |
| ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED); |
| } |
| |
| @VisibleForTesting |
| void logSpecialPermissionChange(boolean newState, String packageName) { |
| int logCategory = newState ? SettingsEnums.APP_SPECIAL_PERMISSION_APPDRAW_ALLOW |
| : SettingsEnums.APP_SPECIAL_PERMISSION_APPDRAW_DENY; |
| final MetricsFeatureProvider metricsFeatureProvider = |
| FeatureFactory.getFactory(getContext()).getMetricsFeatureProvider(); |
| metricsFeatureProvider.action( |
| metricsFeatureProvider.getAttribution(getActivity()), |
| logCategory, |
| getMetricsCategory(), |
| packageName, |
| 0); |
| } |
| |
| @Override |
| protected boolean refreshUi() { |
| if (mPackageInfo == null) { |
| return true; |
| } |
| |
| mOverlayState = mOverlayBridge.getOverlayInfo(mPackageName, |
| mPackageInfo.applicationInfo.uid); |
| |
| boolean isAllowed = mOverlayState.isPermissible(); |
| mSwitchPref.setChecked(isAllowed); |
| // you cannot ask a user to grant you a permission you did not have! |
| mSwitchPref.setEnabled(mOverlayState.permissionDeclared && mOverlayState.controlEnabled); |
| |
| return true; |
| } |
| |
| @Override |
| protected AlertDialog createDialog(int id, int errorCode) { |
| return null; |
| } |
| |
| @Override |
| public int getMetricsCategory() { |
| return SettingsEnums.SYSTEM_ALERT_WINDOW_APPS; |
| } |
| |
| public static CharSequence getSummary(Context context, AppEntry entry) { |
| OverlayState state; |
| if (entry.extraInfo instanceof OverlayState) { |
| state = (OverlayState) entry.extraInfo; |
| } else if (entry.extraInfo instanceof PermissionState) { |
| state = new OverlayState((PermissionState) entry.extraInfo); |
| } else { |
| state = new AppStateOverlayBridge(context, null, null).getOverlayInfo( |
| entry.info.packageName, entry.info.uid); |
| } |
| |
| return getSummary(context, state); |
| } |
| |
| public static CharSequence getSummary(Context context, OverlayState overlayState) { |
| return context.getString(overlayState.isPermissible() ? |
| R.string.app_permission_summary_allowed |
| : R.string.app_permission_summary_not_allowed); |
| } |
| } |