| /* |
| * 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.internal.app; |
| |
| import static android.view.accessibility.AccessibilityManager.ACCESSIBILITY_BUTTON; |
| import static android.view.accessibility.AccessibilityManager.ACCESSIBILITY_SHORTCUT_KEY; |
| import static android.view.accessibility.AccessibilityManager.ShortcutType; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.annotation.IntDef; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| import android.util.ArraySet; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.AdapterView; |
| import android.widget.BaseAdapter; |
| import android.widget.FrameLayout; |
| import android.widget.ImageView; |
| import android.widget.Switch; |
| import android.widget.TextView; |
| |
| import com.android.internal.R; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.StringJoiner; |
| |
| /** |
| * Activity used to display and persist a service or feature target for the Accessibility button. |
| */ |
| public class AccessibilityButtonChooserActivity extends Activity { |
| |
| private static final String MAGNIFICATION_COMPONENT_ID = |
| "com.android.server.accessibility.MagnificationController"; |
| |
| private static final char SERVICES_SEPARATOR = ':'; |
| private static final TextUtils.SimpleStringSplitter sStringColonSplitter = |
| new TextUtils.SimpleStringSplitter(SERVICES_SEPARATOR); |
| private static final int ACCESSIBILITY_BUTTON_USER_TYPE = convertToUserType( |
| ACCESSIBILITY_BUTTON); |
| private static final int ACCESSIBILITY_SHORTCUT_KEY_USER_TYPE = convertToUserType( |
| ACCESSIBILITY_SHORTCUT_KEY); |
| |
| private int mShortcutType; |
| private List<AccessibilityButtonTarget> mTargets = new ArrayList<>(); |
| private AlertDialog mAlertDialog; |
| private TargetAdapter mTargetAdapter; |
| |
| /** |
| * Annotation for different user shortcut type UI type. |
| * |
| * {@code DEFAULT} for displaying default value. |
| * {@code SOFTWARE} for displaying specifying the accessibility services or features which |
| * choose accessibility button in the navigation bar as preferred shortcut. |
| * {@code HARDWARE} for displaying specifying the accessibility services or features which |
| * choose accessibility shortcut as preferred shortcut. |
| * {@code TRIPLETAP} for displaying specifying magnification to be toggled via quickly |
| * tapping screen 3 times as preferred shortcut. |
| */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef({ |
| UserShortcutType.DEFAULT, |
| UserShortcutType.SOFTWARE, |
| UserShortcutType.HARDWARE, |
| UserShortcutType.TRIPLETAP, |
| }) |
| /** Denotes the user shortcut type. */ |
| public @interface UserShortcutType { |
| int DEFAULT = 0; |
| int SOFTWARE = 1; // 1 << 0 |
| int HARDWARE = 2; // 1 << 1 |
| int TRIPLETAP = 4; // 1 << 2 |
| } |
| |
| /** |
| * Annotation for different accessibilityService fragment UI type. |
| * |
| * {@code LEGACY} for displaying appearance aligned with sdk version Q accessibility service |
| * page, but only hardware shortcut allowed and under service in version Q or early. |
| * {@code INVISIBLE} for displaying appearance without switch bar. |
| * {@code INTUITIVE} for displaying appearance with version R accessibility design. |
| * {@code BOUNCE} for displaying appearance with pop-up action. |
| */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef({ |
| AccessibilityServiceFragmentType.LEGACY, |
| AccessibilityServiceFragmentType.INVISIBLE, |
| AccessibilityServiceFragmentType.INTUITIVE, |
| AccessibilityServiceFragmentType.BOUNCE, |
| }) |
| public @interface AccessibilityServiceFragmentType { |
| int LEGACY = 0; |
| int INVISIBLE = 1; |
| int INTUITIVE = 2; |
| int BOUNCE = 3; |
| } |
| |
| /** |
| * Annotation for different shortcut menu mode. |
| * |
| * {@code LAUNCH} for clicking list item to trigger the service callback. |
| * {@code EDIT} for clicking list item and save button to disable the service. |
| */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef({ |
| ShortcutMenuMode.LAUNCH, |
| ShortcutMenuMode.EDIT, |
| }) |
| public @interface ShortcutMenuMode { |
| int LAUNCH = 0; |
| int EDIT = 1; |
| } |
| |
| @Override |
| protected void onCreate(@Nullable Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| final TypedArray theme = getTheme().obtainStyledAttributes(android.R.styleable.Theme); |
| if (!theme.getBoolean(android.R.styleable.Theme_windowNoTitle, /* defValue= */ false)) { |
| requestWindowFeature(Window.FEATURE_NO_TITLE); |
| } |
| |
| mShortcutType = getIntent().getIntExtra(AccessibilityManager.EXTRA_SHORTCUT_TYPE, |
| ACCESSIBILITY_BUTTON); |
| mTargets.addAll(getServiceTargets(this, mShortcutType)); |
| |
| mTargetAdapter = new TargetAdapter(mTargets); |
| mAlertDialog = new AlertDialog.Builder(this) |
| .setAdapter(mTargetAdapter, /* listener= */ null) |
| .setPositiveButton( |
| getString(R.string.edit_accessibility_shortcut_menu_button), |
| /* listener= */ null) |
| .setOnDismissListener(dialog -> finish()) |
| .create(); |
| mAlertDialog.setOnShowListener(dialog -> updateDialogListeners()); |
| mAlertDialog.show(); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| mAlertDialog.dismiss(); |
| super.onDestroy(); |
| } |
| |
| /** |
| * Gets the corresponding fragment type of a given accessibility service. |
| * |
| * @param accessibilityServiceInfo The accessibilityService's info. |
| * @return int from {@link AccessibilityServiceFragmentType}. |
| */ |
| private static @AccessibilityServiceFragmentType int getAccessibilityServiceFragmentType( |
| AccessibilityServiceInfo accessibilityServiceInfo) { |
| final int targetSdk = accessibilityServiceInfo.getResolveInfo() |
| .serviceInfo.applicationInfo.targetSdkVersion; |
| final boolean requestA11yButton = (accessibilityServiceInfo.flags |
| & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0; |
| |
| if (targetSdk <= Build.VERSION_CODES.Q) { |
| return AccessibilityServiceFragmentType.LEGACY; |
| } |
| return requestA11yButton |
| ? AccessibilityServiceFragmentType.INVISIBLE |
| : AccessibilityServiceFragmentType.INTUITIVE; |
| } |
| |
| private static List<AccessibilityButtonTarget> getServiceTargets(@NonNull Context context, |
| @ShortcutType int shortcutType) { |
| final AccessibilityManager ams = (AccessibilityManager) context.getSystemService( |
| Context.ACCESSIBILITY_SERVICE); |
| final List<AccessibilityServiceInfo> installedServices = |
| ams.getInstalledAccessibilityServiceList(); |
| if (installedServices == null) { |
| return Collections.emptyList(); |
| } |
| |
| final List<AccessibilityButtonTarget> targets = new ArrayList<>(installedServices.size()); |
| for (AccessibilityServiceInfo info : installedServices) { |
| if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) { |
| targets.add(new AccessibilityButtonTarget(context, info)); |
| } |
| } |
| |
| final List<String> requiredTargets = ams.getAccessibilityShortcutTargets(shortcutType); |
| targets.removeIf(target -> !requiredTargets.contains(target.getId())); |
| |
| // TODO(b/146815874): Will replace it with white list services. |
| if (Settings.Secure.getInt(context.getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, 0) == 1) { |
| final AccessibilityButtonTarget magnificationTarget = new AccessibilityButtonTarget( |
| context, |
| MAGNIFICATION_COMPONENT_ID, |
| R.string.accessibility_magnification_chooser_text, |
| R.drawable.ic_accessibility_magnification, |
| AccessibilityServiceFragmentType.INTUITIVE); |
| targets.add(magnificationTarget); |
| } |
| |
| return targets; |
| } |
| |
| private static class ViewHolder { |
| ImageView mIconView; |
| TextView mLabelView; |
| FrameLayout mItemContainer; |
| ImageView mViewItem; |
| Switch mSwitchItem; |
| } |
| |
| private static class TargetAdapter extends BaseAdapter { |
| @ShortcutMenuMode |
| private int mShortcutMenuMode = ShortcutMenuMode.LAUNCH; |
| private List<AccessibilityButtonTarget> mButtonTargets; |
| |
| TargetAdapter(List<AccessibilityButtonTarget> targets) { |
| this.mButtonTargets = targets; |
| } |
| |
| void setShortcutMenuMode(int shortcutMenuMode) { |
| mShortcutMenuMode = shortcutMenuMode; |
| } |
| |
| int getShortcutMenuMode() { |
| return mShortcutMenuMode; |
| } |
| |
| @Override |
| public int getCount() { |
| return mButtonTargets.size(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return mButtonTargets.get(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| final Context context = parent.getContext(); |
| ViewHolder holder; |
| if (convertView == null) { |
| convertView = LayoutInflater.from(context).inflate( |
| R.layout.accessibility_button_chooser_item, parent, /* attachToRoot= */ |
| false); |
| holder = new ViewHolder(); |
| holder.mIconView = convertView.findViewById(R.id.accessibility_button_target_icon); |
| holder.mLabelView = convertView.findViewById( |
| R.id.accessibility_button_target_label); |
| holder.mItemContainer = convertView.findViewById( |
| R.id.accessibility_button_target_item_container); |
| holder.mViewItem = convertView.findViewById( |
| R.id.accessibility_button_target_view_item); |
| holder.mSwitchItem = convertView.findViewById( |
| R.id.accessibility_button_target_switch_item); |
| convertView.setTag(holder); |
| } else { |
| holder = (ViewHolder) convertView.getTag(); |
| } |
| |
| final AccessibilityButtonTarget target = mButtonTargets.get(position); |
| holder.mIconView.setImageDrawable(target.getDrawable()); |
| holder.mLabelView.setText(target.getLabel()); |
| |
| updateActionItem(context, holder, target); |
| |
| return convertView; |
| } |
| |
| private void updateActionItem(@NonNull Context context, |
| @NonNull ViewHolder holder, AccessibilityButtonTarget target) { |
| |
| switch (target.getFragmentType()) { |
| case AccessibilityServiceFragmentType.LEGACY: |
| updateLegacyActionItemVisibility(context, holder); |
| break; |
| case AccessibilityServiceFragmentType.INVISIBLE: |
| updateInvisibleActionItemVisibility(context, holder); |
| break; |
| case AccessibilityServiceFragmentType.INTUITIVE: |
| updateIntuitiveActionItemVisibility(context, holder, target); |
| break; |
| case AccessibilityServiceFragmentType.BOUNCE: |
| updateBounceActionItemVisibility(context, holder); |
| break; |
| default: |
| throw new IllegalStateException("Unexpected fragment type"); |
| } |
| } |
| |
| private void updateLegacyActionItemVisibility(@NonNull Context context, |
| @NonNull ViewHolder holder) { |
| final boolean isEditMenuMode = (mShortcutMenuMode == ShortcutMenuMode.EDIT); |
| |
| holder.mLabelView.setEnabled(!isEditMenuMode); |
| holder.mViewItem.setEnabled(!isEditMenuMode); |
| holder.mViewItem.setImageDrawable(context.getDrawable(R.drawable.ic_delete_item)); |
| holder.mViewItem.setVisibility(View.VISIBLE); |
| holder.mSwitchItem.setVisibility(View.GONE); |
| holder.mItemContainer.setVisibility(isEditMenuMode ? View.VISIBLE : View.GONE); |
| } |
| |
| private void updateInvisibleActionItemVisibility(@NonNull Context context, |
| @NonNull ViewHolder holder) { |
| final boolean isEditMenuMode = (mShortcutMenuMode == ShortcutMenuMode.EDIT); |
| |
| holder.mViewItem.setImageDrawable(context.getDrawable(R.drawable.ic_delete_item)); |
| holder.mViewItem.setVisibility(View.VISIBLE); |
| holder.mSwitchItem.setVisibility(View.GONE); |
| holder.mItemContainer.setVisibility(isEditMenuMode ? View.VISIBLE : View.GONE); |
| } |
| |
| private void updateIntuitiveActionItemVisibility(@NonNull Context context, |
| @NonNull ViewHolder holder, AccessibilityButtonTarget target) { |
| final boolean isEditMenuMode = (mShortcutMenuMode == ShortcutMenuMode.EDIT); |
| |
| holder.mViewItem.setImageDrawable(context.getDrawable(R.drawable.ic_delete_item)); |
| holder.mViewItem.setVisibility(isEditMenuMode ? View.VISIBLE : View.GONE); |
| holder.mSwitchItem.setVisibility(isEditMenuMode ? View.GONE : View.VISIBLE); |
| holder.mSwitchItem.setChecked(!isEditMenuMode && isServiceEnabled(context, target)); |
| holder.mItemContainer.setVisibility(View.VISIBLE); |
| } |
| |
| private void updateBounceActionItemVisibility(@NonNull Context context, |
| @NonNull ViewHolder holder) { |
| final boolean isEditMenuMode = (mShortcutMenuMode == ShortcutMenuMode.EDIT); |
| |
| holder.mViewItem.setImageDrawable( |
| isEditMenuMode ? context.getDrawable(R.drawable.ic_delete_item) |
| : context.getDrawable(R.drawable.ic_open_in_new)); |
| holder.mViewItem.setVisibility(isEditMenuMode ? View.VISIBLE : View.GONE); |
| holder.mSwitchItem.setVisibility(View.GONE); |
| holder.mItemContainer.setVisibility(View.VISIBLE); |
| } |
| } |
| |
| private static class AccessibilityButtonTarget { |
| private String mId; |
| private CharSequence mLabel; |
| private Drawable mDrawable; |
| @AccessibilityServiceFragmentType |
| private int mFragmentType; |
| |
| AccessibilityButtonTarget(@NonNull Context context, |
| @NonNull AccessibilityServiceInfo serviceInfo) { |
| this.mId = serviceInfo.getComponentName().flattenToString(); |
| this.mLabel = serviceInfo.getResolveInfo().loadLabel(context.getPackageManager()); |
| this.mDrawable = serviceInfo.getResolveInfo().loadIcon(context.getPackageManager()); |
| this.mFragmentType = getAccessibilityServiceFragmentType(serviceInfo); |
| } |
| |
| AccessibilityButtonTarget(Context context, @NonNull String id, int labelResId, |
| int iconRes, @AccessibilityServiceFragmentType int fragmentType) { |
| this.mId = id; |
| this.mLabel = context.getText(labelResId); |
| this.mDrawable = context.getDrawable(iconRes); |
| this.mFragmentType = fragmentType; |
| } |
| |
| public String getId() { |
| return mId; |
| } |
| |
| public CharSequence getLabel() { |
| return mLabel; |
| } |
| |
| public Drawable getDrawable() { |
| return mDrawable; |
| } |
| |
| public int getFragmentType() { |
| return mFragmentType; |
| } |
| } |
| |
| private static boolean isServiceEnabled(@NonNull Context context, |
| AccessibilityButtonTarget target) { |
| final AccessibilityManager ams = (AccessibilityManager) context.getSystemService( |
| Context.ACCESSIBILITY_SERVICE); |
| final List<AccessibilityServiceInfo> enabledServices = |
| ams.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_ALL_MASK); |
| |
| for (AccessibilityServiceInfo info : enabledServices) { |
| final String id = info.getComponentName().flattenToString(); |
| if (id.equals(target.getId())) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private void onTargetSelected(AdapterView<?> parent, View view, int position, long id) { |
| Settings.Secure.putString(getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_BUTTON_TARGET_COMPONENT, |
| mTargets.get(position).getId()); |
| // TODO(b/146969684): notify accessibility button clicked. |
| mAlertDialog.dismiss(); |
| } |
| |
| private void onTargetDeleted(AdapterView<?> parent, View view, int position, long id) { |
| final AccessibilityButtonTarget target = mTargets.get(position); |
| final ComponentName targetComponentName = |
| ComponentName.unflattenFromString(target.getId()); |
| |
| switch (target.getFragmentType()) { |
| case AccessibilityServiceFragmentType.INVISIBLE: |
| onInvisibleTargetDeleted(targetComponentName); |
| break; |
| case AccessibilityServiceFragmentType.INTUITIVE: |
| onIntuitiveTargetDeleted(targetComponentName); |
| break; |
| case AccessibilityServiceFragmentType.LEGACY: |
| case AccessibilityServiceFragmentType.BOUNCE: |
| // Do nothing |
| break; |
| default: |
| throw new IllegalStateException("Unexpected fragment type"); |
| } |
| |
| mTargets.remove(position); |
| mTargetAdapter.notifyDataSetChanged(); |
| |
| if (mTargets.isEmpty()) { |
| mAlertDialog.dismiss(); |
| } |
| } |
| |
| private void onInvisibleTargetDeleted(ComponentName componentName) { |
| if (mShortcutType == ACCESSIBILITY_BUTTON) { |
| optOutValueFromSettings(this, ACCESSIBILITY_BUTTON_USER_TYPE, componentName); |
| |
| if (!hasValueInSettings(this, |
| ACCESSIBILITY_SHORTCUT_KEY_USER_TYPE, componentName)) { |
| setAccessibilityServiceState(this, componentName, /* enabled= */ false); |
| } |
| } else if (mShortcutType == ACCESSIBILITY_SHORTCUT_KEY) { |
| optOutValueFromSettings(this, ACCESSIBILITY_SHORTCUT_KEY_USER_TYPE, componentName); |
| |
| if (!hasValueInSettings(this, |
| ACCESSIBILITY_BUTTON_USER_TYPE, componentName)) { |
| setAccessibilityServiceState(this, componentName, /* enabled= */ false); |
| } |
| } else { |
| throw new IllegalArgumentException("Unsupported shortcut type:" + mShortcutType); |
| } |
| } |
| |
| private void onIntuitiveTargetDeleted(ComponentName componentName) { |
| if (mShortcutType == ACCESSIBILITY_BUTTON) { |
| optOutValueFromSettings(this, ACCESSIBILITY_BUTTON_USER_TYPE, componentName); |
| } else if (mShortcutType == ACCESSIBILITY_SHORTCUT_KEY) { |
| optOutValueFromSettings(this, ACCESSIBILITY_SHORTCUT_KEY_USER_TYPE, componentName); |
| } else { |
| throw new IllegalArgumentException("Unsupported shortcut type:" + mShortcutType); |
| } |
| } |
| |
| private void onCancelButtonClicked() { |
| mTargetAdapter.setShortcutMenuMode(ShortcutMenuMode.LAUNCH); |
| mTargetAdapter.notifyDataSetChanged(); |
| |
| mAlertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setText( |
| getString(R.string.edit_accessibility_shortcut_menu_button)); |
| |
| updateDialogListeners(); |
| } |
| |
| private void onEditButtonClicked() { |
| mTargetAdapter.setShortcutMenuMode(ShortcutMenuMode.EDIT); |
| mTargetAdapter.notifyDataSetChanged(); |
| |
| mAlertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setText( |
| getString(R.string.cancel_accessibility_shortcut_menu_button)); |
| |
| updateDialogListeners(); |
| } |
| |
| private void updateDialogListeners() { |
| final boolean isEditMenuMode = |
| (mTargetAdapter.getShortcutMenuMode() == ShortcutMenuMode.EDIT); |
| |
| mAlertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setOnClickListener( |
| isEditMenuMode ? view -> onCancelButtonClicked() : view -> onEditButtonClicked()); |
| mAlertDialog.getListView().setOnItemClickListener( |
| isEditMenuMode ? this::onTargetDeleted : this::onTargetSelected); |
| } |
| |
| /** |
| * @return the set of enabled accessibility services for {@param userId}. If there are no |
| * services, it returns the unmodifiable {@link Collections#emptySet()}. |
| */ |
| private Set<ComponentName> getEnabledServicesFromSettings(Context context, int userId) { |
| final String enabledServicesSetting = Settings.Secure.getStringForUser( |
| context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES, |
| userId); |
| if (TextUtils.isEmpty(enabledServicesSetting)) { |
| return Collections.emptySet(); |
| } |
| |
| final Set<ComponentName> enabledServices = new HashSet<>(); |
| final TextUtils.StringSplitter colonSplitter = |
| new TextUtils.SimpleStringSplitter(SERVICES_SEPARATOR); |
| colonSplitter.setString(enabledServicesSetting); |
| |
| for (String componentNameString : colonSplitter) { |
| final ComponentName enabledService = ComponentName.unflattenFromString( |
| componentNameString); |
| if (enabledService != null) { |
| enabledServices.add(enabledService); |
| } |
| } |
| |
| return enabledServices; |
| } |
| |
| /** |
| * Changes an accessibility component's state. |
| */ |
| private void setAccessibilityServiceState(Context context, ComponentName componentName, |
| boolean enabled) { |
| setAccessibilityServiceState(context, componentName, enabled, UserHandle.myUserId()); |
| } |
| |
| /** |
| * Changes an accessibility component's state for {@param userId}. |
| */ |
| private void setAccessibilityServiceState(Context context, ComponentName componentName, |
| boolean enabled, int userId) { |
| Set<ComponentName> enabledServices = getEnabledServicesFromSettings( |
| context, userId); |
| |
| if (enabledServices.isEmpty()) { |
| enabledServices = new ArraySet<>(/* capacity= */ 1); |
| } |
| |
| if (enabled) { |
| enabledServices.add(componentName); |
| } else { |
| enabledServices.remove(componentName); |
| } |
| |
| final StringBuilder enabledServicesBuilder = new StringBuilder(); |
| for (ComponentName enabledService : enabledServices) { |
| enabledServicesBuilder.append(enabledService.flattenToString()); |
| enabledServicesBuilder.append( |
| SERVICES_SEPARATOR); |
| } |
| |
| final int enabledServicesBuilderLength = enabledServicesBuilder.length(); |
| if (enabledServicesBuilderLength > 0) { |
| enabledServicesBuilder.deleteCharAt(enabledServicesBuilderLength - 1); |
| } |
| |
| Settings.Secure.putStringForUser(context.getContentResolver(), |
| Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES, |
| enabledServicesBuilder.toString(), userId); |
| } |
| |
| /** |
| * Opts out component name into colon-separated {@code shortcutType} key's string in Settings. |
| * |
| * @param context The current context. |
| * @param shortcutType The preferred shortcut type user selected. |
| * @param componentName The component name that need to be opted out from Settings. |
| */ |
| private void optOutValueFromSettings( |
| Context context, int shortcutType, ComponentName componentName) { |
| final StringJoiner joiner = new StringJoiner(String.valueOf(SERVICES_SEPARATOR)); |
| final String targetsKey = convertToKey(shortcutType); |
| final String targetsValue = Settings.Secure.getString(context.getContentResolver(), |
| targetsKey); |
| |
| if (TextUtils.isEmpty(targetsValue)) { |
| return; |
| } |
| |
| sStringColonSplitter.setString(targetsValue); |
| while (sStringColonSplitter.hasNext()) { |
| final String name = sStringColonSplitter.next(); |
| if (TextUtils.isEmpty(name) || (componentName.flattenToString()).equals(name)) { |
| continue; |
| } |
| joiner.add(name); |
| } |
| |
| Settings.Secure.putString(context.getContentResolver(), targetsKey, joiner.toString()); |
| } |
| |
| /** |
| * Returns if component name existed in Settings. |
| * |
| * @param context The current context. |
| * @param shortcutType The preferred shortcut type user selected. |
| * @param componentName The component name that need to be checked existed in Settings. |
| * @return {@code true} if componentName existed in Settings. |
| */ |
| private boolean hasValueInSettings(Context context, @UserShortcutType int shortcutType, |
| @NonNull ComponentName componentName) { |
| final String targetKey = convertToKey(shortcutType); |
| final String targetString = Settings.Secure.getString(context.getContentResolver(), |
| targetKey); |
| |
| if (TextUtils.isEmpty(targetString)) { |
| return false; |
| } |
| |
| sStringColonSplitter.setString(targetString); |
| while (sStringColonSplitter.hasNext()) { |
| final String name = sStringColonSplitter.next(); |
| if ((componentName.flattenToString()).equals(name)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Converts {@link UserShortcutType} to key in Settings. |
| * |
| * @param type The shortcut type. |
| * @return Mapping key in Settings. |
| */ |
| private String convertToKey(@UserShortcutType int type) { |
| switch (type) { |
| case UserShortcutType.SOFTWARE: |
| return Settings.Secure.ACCESSIBILITY_BUTTON_TARGET_COMPONENT; |
| case UserShortcutType.HARDWARE: |
| return Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_SERVICE; |
| case UserShortcutType.TRIPLETAP: |
| return Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED; |
| default: |
| throw new IllegalArgumentException( |
| "Unsupported user shortcut type: " + type); |
| } |
| } |
| |
| private static @UserShortcutType int convertToUserType(@ShortcutType int type) { |
| switch (type) { |
| case ACCESSIBILITY_BUTTON: |
| return UserShortcutType.SOFTWARE; |
| case ACCESSIBILITY_SHORTCUT_KEY: |
| return UserShortcutType.HARDWARE; |
| default: |
| throw new IllegalArgumentException( |
| "Unsupported shortcut type:" + type); |
| } |
| } |
| } |