src/com/android/settings/accessibility/AccessibilityDetailsSettingsFragment.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * 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.settings.accessibility;

 import static com.android.internal.accessibility.AccessibilityShortcutController.ACCESSIBILITY_BUTTON_COMPONENT_NAME;
 import static com.android.internal.accessibility.AccessibilityShortcutController.ACCESSIBILITY_HEARING_AIDS_COMPONENT_NAME;
 import static com.android.internal.accessibility.AccessibilityShortcutController.MAGNIFICATION_COMPONENT_NAME;

 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.app.Activity;
 import android.app.AppOpsManager;
 import android.app.admin.DevicePolicyManager;
 import android.app.settings.SettingsEnums;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.accessibility.AccessibilityManager;

 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;

 import com.android.internal.annotations.VisibleForTesting;
 import com.android.settings.R;
 import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.accessibility.AccessibilityUtils;

 import java.util.List;
 import java.util.Objects;
 import java.util.Set;

 public class AccessibilityDetailsSettingsFragment extends InstrumentedFragment {

     private final static String TAG = "A11yDetailsSettings";
     private AppOpsManager mAppOps;

     @Override
     public int getMetricsCategory() {
         return SettingsEnums.ACCESSIBILITY_DETAILS_SETTINGS;
     }

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         mAppOps = getActivity().getSystemService(AppOpsManager.class);

         // In case the Intent doesn't have component name, go to a11y services list.
         final String extraComponentName = getActivity().getIntent().getStringExtra(
                 Intent.EXTRA_COMPONENT_NAME);
         if (extraComponentName == null) {
             Log.w(TAG, "Open accessibility services list due to no component name.");
             openAccessibilitySettingsAndFinish();
             return;
         }

         final ComponentName componentName = ComponentName.unflattenFromString(extraComponentName);
         if (openSystemAccessibilitySettingsAndFinish(componentName)) {
             return;
         }

         if (openAccessibilityDetailsSettingsAndFinish(componentName)) {
             return;
         }
         // Fall back to open accessibility services list.
         openAccessibilitySettingsAndFinish();
     }

     private boolean openSystemAccessibilitySettingsAndFinish(
             @Nullable ComponentName componentName) {
         final LaunchFragmentArguments launchArguments =
                 getSystemAccessibilitySettingsLaunchArguments(componentName);
         if (launchArguments == null) {
             return false;
         }
         openSubSettings(launchArguments.mDestination, launchArguments.mArguments);
         finish();
         return true;
     }

     @Nullable
     private LaunchFragmentArguments getSystemAccessibilitySettingsLaunchArguments(
             @Nullable ComponentName componentName) {
         if (MAGNIFICATION_COMPONENT_NAME.equals(componentName)) {
             final String destination = ToggleScreenMagnificationPreferenceFragment.class.getName();
             return new LaunchFragmentArguments(destination, /* arguments= */ null);
         }

         if (ACCESSIBILITY_BUTTON_COMPONENT_NAME.equals(componentName)) {
             final String destination = AccessibilityButtonFragment.class.getName();
             return new LaunchFragmentArguments(destination, /* arguments= */ null);
         }

         if (ACCESSIBILITY_HEARING_AIDS_COMPONENT_NAME.equals(componentName)) {
             final String destination = AccessibilityHearingAidsFragment.class.getName();
             return new LaunchFragmentArguments(destination, /* arguments= */ null);
         }

         return null;
     }


     private void openAccessibilitySettingsAndFinish() {
         openSubSettings(AccessibilitySettings.class.getName(), /* arguments= */ null);
         finish();
     }

     private boolean openAccessibilityDetailsSettingsAndFinish(
             @Nullable ComponentName componentName) {
         // In case the A11yServiceInfo doesn't exist, go to ally services list.
         final AccessibilityServiceInfo info = getAccessibilityServiceInfo(componentName);
         if (info == null) {
             Log.w(TAG, "openAccessibilityDetailsSettingsAndFinish : invalid component name.");
             return false;
         }

         // In case this accessibility service isn't permitted, go to a11y services list.
         if (!isServiceAllowed(info.getResolveInfo().serviceInfo.applicationInfo.uid,
                 componentName.getPackageName())) {
             Log.w(TAG,
                     "openAccessibilityDetailsSettingsAndFinish: target accessibility service is"
                             + "prohibited by Device Admin or App Op.");
             return false;
         }
         openSubSettings(ToggleAccessibilityServicePreferenceFragment.class.getName(),
                 buildArguments(info));
         finish();
         return true;
     }

     private void openSubSettings(@NonNull String destination, @Nullable Bundle arguments) {
         new SubSettingLauncher(getActivity())
                 .setDestination(destination)
                 .setSourceMetricsCategory(getMetricsCategory())
                 .setArguments(arguments)
                 .launch();
     }

     @VisibleForTesting
     boolean isServiceAllowed(int uid, String packageName) {
         final DevicePolicyManager dpm = getContext().getSystemService(DevicePolicyManager.class);
         final List<String> permittedServices = dpm.getPermittedAccessibilityServices(
                 UserHandle.myUserId());
         if (permittedServices != null && !permittedServices.contains(packageName)) {
             return false;
         }
         try {
             final int mode = mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_RESTRICTED_SETTINGS,
                     uid, packageName);
             final boolean ecmEnabled = getContext().getResources().getBoolean(
                     com.android.internal.R.bool.config_enhancedConfirmationModeEnabled);
             return !ecmEnabled || mode == AppOpsManager.MODE_ALLOWED;
         } catch (Exception e) {
             // Fallback in case if app ops is not available in testing.
             return true;
         }
     }

     private AccessibilityServiceInfo getAccessibilityServiceInfo(ComponentName componentName) {
         if (componentName == null) {
             return null;
         }

         final List<AccessibilityServiceInfo> serviceInfos = AccessibilityManager.getInstance(
                 getActivity()).getInstalledAccessibilityServiceList();
         final int serviceInfoCount = serviceInfos.size();
         for (int i = 0; i < serviceInfoCount; i++) {
             AccessibilityServiceInfo serviceInfo = serviceInfos.get(i);
             ResolveInfo resolveInfo = serviceInfo.getResolveInfo();
             if (componentName.getPackageName().equals(resolveInfo.serviceInfo.packageName)
                     && componentName.getClassName().equals(resolveInfo.serviceInfo.name)) {
                 return serviceInfo;
             }
         }
         return null;
     }

     private Bundle buildArguments(AccessibilityServiceInfo info) {
         final ResolveInfo resolveInfo = info.getResolveInfo();
         final String title = resolveInfo.loadLabel(getActivity().getPackageManager()).toString();
         final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
         final String packageName = serviceInfo.packageName;
         final ComponentName componentName = new ComponentName(packageName, serviceInfo.name);

         final Set<ComponentName> enabledServices =
                 AccessibilityUtils.getEnabledServicesFromSettings(getActivity());
         final boolean serviceEnabled = enabledServices.contains(componentName);
         String description = info.loadDescription(getActivity().getPackageManager());

         if (serviceEnabled && info.crashed) {
             // Update the summaries for services that have crashed.
             description = getString(R.string.accessibility_description_state_stopped);
         }

         final Bundle extras = new Bundle();
         extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
                 componentName.flattenToString());
         extras.putBoolean(AccessibilitySettings.EXTRA_CHECKED, serviceEnabled);
         extras.putString(AccessibilitySettings.EXTRA_TITLE, title);
         extras.putParcelable(AccessibilitySettings.EXTRA_RESOLVE_INFO, resolveInfo);
         extras.putString(AccessibilitySettings.EXTRA_SUMMARY, description);

         final String settingsClassName = info.getSettingsActivityName();
         if (!TextUtils.isEmpty(settingsClassName)) {
             extras.putString(AccessibilitySettings.EXTRA_SETTINGS_TITLE,
                     getString(R.string.accessibility_menu_item_settings));
             extras.putString(AccessibilitySettings.EXTRA_SETTINGS_COMPONENT_NAME,
                     new ComponentName(packageName, settingsClassName).flattenToString());
         }

         final String tileServiceClassName = info.getTileServiceName();
         if (!TextUtils.isEmpty(tileServiceClassName)) {
             extras.putString(AccessibilitySettings.EXTRA_TILE_SERVICE_COMPONENT_NAME,
                     new ComponentName(packageName, tileServiceClassName).flattenToString());
         }

         final int metricsCategory = FeatureFactory.getFeatureFactory()
                 .getAccessibilityMetricsFeatureProvider()
                 .getDownloadedFeatureMetricsCategory(componentName);
         extras.putInt(AccessibilitySettings.EXTRA_METRICS_CATEGORY, metricsCategory);
         extras.putParcelable(AccessibilitySettings.EXTRA_COMPONENT_NAME, componentName);
         extras.putInt(AccessibilitySettings.EXTRA_ANIMATED_IMAGE_RES, info.getAnimatedImageRes());

         final String htmlDescription = info.loadHtmlDescription(getActivity().getPackageManager());
         extras.putString(AccessibilitySettings.EXTRA_HTML_DESCRIPTION, htmlDescription);

         final CharSequence intro = info.loadIntro(getActivity().getPackageManager());
         extras.putCharSequence(AccessibilitySettings.EXTRA_INTRO, intro);

         // We will log nonA11yTool status from PolicyWarningUIController; others none.
         extras.putLong(AccessibilitySettings.EXTRA_TIME_FOR_LOGGING,
                 getActivity().getIntent().getLongExtra(
                         AccessibilitySettings.EXTRA_TIME_FOR_LOGGING, 0));
         return extras;
     }

     private void finish() {
         Activity activity = getActivity();
         if (activity == null) {
             return;
         }
         activity.finish();
     }

     private static class LaunchFragmentArguments {
         final String mDestination;
         final Bundle mArguments;
         LaunchFragmentArguments(@NonNull String destination, @Nullable Bundle arguments) {
             mDestination = Objects.requireNonNull(destination);
             mArguments = arguments;
         }
     }
 }
	/*
	* 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.settings.accessibility;

	import static com.android.internal.accessibility.AccessibilityShortcutController.ACCESSIBILITY_BUTTON_COMPONENT_NAME;
	import static com.android.internal.accessibility.AccessibilityShortcutController.ACCESSIBILITY_HEARING_AIDS_COMPONENT_NAME;
	import static com.android.internal.accessibility.AccessibilityShortcutController.MAGNIFICATION_COMPONENT_NAME;

	import android.accessibilityservice.AccessibilityServiceInfo;
	import android.app.Activity;
	import android.app.AppOpsManager;
	import android.app.admin.DevicePolicyManager;
	import android.app.settings.SettingsEnums;
	import android.content.ComponentName;
	import android.content.Intent;
	import android.content.pm.ResolveInfo;
	import android.content.pm.ServiceInfo;
	import android.os.Bundle;
	import android.os.UserHandle;
	import android.text.TextUtils;
	import android.util.Log;
	import android.view.accessibility.AccessibilityManager;

	import androidx.annotation.NonNull;
	import androidx.annotation.Nullable;

	import com.android.internal.annotations.VisibleForTesting;
	import com.android.settings.R;
	import com.android.settings.core.InstrumentedFragment;
	import com.android.settings.core.SubSettingLauncher;
	import com.android.settings.overlay.FeatureFactory;
	import com.android.settingslib.accessibility.AccessibilityUtils;

	import java.util.List;
	import java.util.Objects;
	import java.util.Set;

	public class AccessibilityDetailsSettingsFragment extends InstrumentedFragment {

	private final static String TAG = "A11yDetailsSettings";
	private AppOpsManager mAppOps;

	@Override
	public int getMetricsCategory() {
	return SettingsEnums.ACCESSIBILITY_DETAILS_SETTINGS;
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	mAppOps = getActivity().getSystemService(AppOpsManager.class);

	// In case the Intent doesn't have component name, go to a11y services list.
	final String extraComponentName = getActivity().getIntent().getStringExtra(
	Intent.EXTRA_COMPONENT_NAME);
	if (extraComponentName == null) {
	Log.w(TAG, "Open accessibility services list due to no component name.");
	openAccessibilitySettingsAndFinish();
	return;
	}

	final ComponentName componentName = ComponentName.unflattenFromString(extraComponentName);
	if (openSystemAccessibilitySettingsAndFinish(componentName)) {
	return;
	}

	if (openAccessibilityDetailsSettingsAndFinish(componentName)) {
	return;
	}
	// Fall back to open accessibility services list.
	openAccessibilitySettingsAndFinish();
	}

	private boolean openSystemAccessibilitySettingsAndFinish(
	@Nullable ComponentName componentName) {
	final LaunchFragmentArguments launchArguments =
	getSystemAccessibilitySettingsLaunchArguments(componentName);
	if (launchArguments == null) {
	return false;
	}
	openSubSettings(launchArguments.mDestination, launchArguments.mArguments);
	finish();
	return true;
	}

	@Nullable
	private LaunchFragmentArguments getSystemAccessibilitySettingsLaunchArguments(
	@Nullable ComponentName componentName) {
	if (MAGNIFICATION_COMPONENT_NAME.equals(componentName)) {
	final String destination = ToggleScreenMagnificationPreferenceFragment.class.getName();
	return new LaunchFragmentArguments(destination, /* arguments= */ null);
	}

	if (ACCESSIBILITY_BUTTON_COMPONENT_NAME.equals(componentName)) {
	final String destination = AccessibilityButtonFragment.class.getName();
	return new LaunchFragmentArguments(destination, /* arguments= */ null);
	}

	if (ACCESSIBILITY_HEARING_AIDS_COMPONENT_NAME.equals(componentName)) {
	final String destination = AccessibilityHearingAidsFragment.class.getName();
	return new LaunchFragmentArguments(destination, /* arguments= */ null);
	}

	return null;
	}


	private void openAccessibilitySettingsAndFinish() {
	openSubSettings(AccessibilitySettings.class.getName(), /* arguments= */ null);
	finish();
	}

	private boolean openAccessibilityDetailsSettingsAndFinish(
	@Nullable ComponentName componentName) {
	// In case the A11yServiceInfo doesn't exist, go to ally services list.
	final AccessibilityServiceInfo info = getAccessibilityServiceInfo(componentName);
	if (info == null) {
	Log.w(TAG, "openAccessibilityDetailsSettingsAndFinish : invalid component name.");
	return false;
	}

	// In case this accessibility service isn't permitted, go to a11y services list.
	if (!isServiceAllowed(info.getResolveInfo().serviceInfo.applicationInfo.uid,
	componentName.getPackageName())) {
	Log.w(TAG,
	"openAccessibilityDetailsSettingsAndFinish: target accessibility service is"
	+ "prohibited by Device Admin or App Op.");
	return false;
	}
	openSubSettings(ToggleAccessibilityServicePreferenceFragment.class.getName(),
	buildArguments(info));
	finish();
	return true;
	}

	private void openSubSettings(@NonNull String destination, @Nullable Bundle arguments) {
	new SubSettingLauncher(getActivity())
	.setDestination(destination)
	.setSourceMetricsCategory(getMetricsCategory())
	.setArguments(arguments)
	.launch();
	}

	@VisibleForTesting
	boolean isServiceAllowed(int uid, String packageName) {
	final DevicePolicyManager dpm = getContext().getSystemService(DevicePolicyManager.class);
	final List<String> permittedServices = dpm.getPermittedAccessibilityServices(
	UserHandle.myUserId());
	if (permittedServices != null && !permittedServices.contains(packageName)) {
	return false;
	}
	try {
	final int mode = mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_RESTRICTED_SETTINGS,
	uid, packageName);
	final boolean ecmEnabled = getContext().getResources().getBoolean(
	com.android.internal.R.bool.config_enhancedConfirmationModeEnabled);
	return !ecmEnabled \|\| mode == AppOpsManager.MODE_ALLOWED;
	} catch (Exception e) {
	// Fallback in case if app ops is not available in testing.
	return true;
	}
	}

	private AccessibilityServiceInfo getAccessibilityServiceInfo(ComponentName componentName) {
	if (componentName == null) {
	return null;
	}

	final List<AccessibilityServiceInfo> serviceInfos = AccessibilityManager.getInstance(
	getActivity()).getInstalledAccessibilityServiceList();
	final int serviceInfoCount = serviceInfos.size();
	for (int i = 0; i < serviceInfoCount; i++) {
	AccessibilityServiceInfo serviceInfo = serviceInfos.get(i);
	ResolveInfo resolveInfo = serviceInfo.getResolveInfo();
	if (componentName.getPackageName().equals(resolveInfo.serviceInfo.packageName)
	&& componentName.getClassName().equals(resolveInfo.serviceInfo.name)) {
	return serviceInfo;
	}
	}
	return null;
	}

	private Bundle buildArguments(AccessibilityServiceInfo info) {
	final ResolveInfo resolveInfo = info.getResolveInfo();
	final String title = resolveInfo.loadLabel(getActivity().getPackageManager()).toString();
	final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
	final String packageName = serviceInfo.packageName;
	final ComponentName componentName = new ComponentName(packageName, serviceInfo.name);

	final Set<ComponentName> enabledServices =
	AccessibilityUtils.getEnabledServicesFromSettings(getActivity());
	final boolean serviceEnabled = enabledServices.contains(componentName);
	String description = info.loadDescription(getActivity().getPackageManager());

	if (serviceEnabled && info.crashed) {
	// Update the summaries for services that have crashed.
	description = getString(R.string.accessibility_description_state_stopped);
	}

	final Bundle extras = new Bundle();
	extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
	componentName.flattenToString());
	extras.putBoolean(AccessibilitySettings.EXTRA_CHECKED, serviceEnabled);
	extras.putString(AccessibilitySettings.EXTRA_TITLE, title);
	extras.putParcelable(AccessibilitySettings.EXTRA_RESOLVE_INFO, resolveInfo);
	extras.putString(AccessibilitySettings.EXTRA_SUMMARY, description);

	final String settingsClassName = info.getSettingsActivityName();
	if (!TextUtils.isEmpty(settingsClassName)) {
	extras.putString(AccessibilitySettings.EXTRA_SETTINGS_TITLE,
	getString(R.string.accessibility_menu_item_settings));
	extras.putString(AccessibilitySettings.EXTRA_SETTINGS_COMPONENT_NAME,
	new ComponentName(packageName, settingsClassName).flattenToString());
	}

	final String tileServiceClassName = info.getTileServiceName();
	if (!TextUtils.isEmpty(tileServiceClassName)) {
	extras.putString(AccessibilitySettings.EXTRA_TILE_SERVICE_COMPONENT_NAME,
	new ComponentName(packageName, tileServiceClassName).flattenToString());
	}

	final int metricsCategory = FeatureFactory.getFeatureFactory()
	.getAccessibilityMetricsFeatureProvider()
	.getDownloadedFeatureMetricsCategory(componentName);
	extras.putInt(AccessibilitySettings.EXTRA_METRICS_CATEGORY, metricsCategory);
	extras.putParcelable(AccessibilitySettings.EXTRA_COMPONENT_NAME, componentName);
	extras.putInt(AccessibilitySettings.EXTRA_ANIMATED_IMAGE_RES, info.getAnimatedImageRes());

	final String htmlDescription = info.loadHtmlDescription(getActivity().getPackageManager());
	extras.putString(AccessibilitySettings.EXTRA_HTML_DESCRIPTION, htmlDescription);

	final CharSequence intro = info.loadIntro(getActivity().getPackageManager());
	extras.putCharSequence(AccessibilitySettings.EXTRA_INTRO, intro);

	// We will log nonA11yTool status from PolicyWarningUIController; others none.
	extras.putLong(AccessibilitySettings.EXTRA_TIME_FOR_LOGGING,
	getActivity().getIntent().getLongExtra(
	AccessibilitySettings.EXTRA_TIME_FOR_LOGGING, 0));
	return extras;
	}

	private void finish() {
	Activity activity = getActivity();
	if (activity == null) {
	return;
	}
	activity.finish();
	}

	private static class LaunchFragmentArguments {
	final String mDestination;
	final Bundle mArguments;
	LaunchFragmentArguments(@NonNull String destination, @Nullable Bundle arguments) {
	mDestination = Objects.requireNonNull(destination);
	mArguments = arguments;
	}
	}
	}