| /* |
| * 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.car.settings.inputmethod; |
| |
| import android.app.admin.DevicePolicyManager; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.content.ActivityNotFoundException; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.util.ArrayMap; |
| import android.view.inputmethod.InputMethodInfo; |
| import android.view.inputmethod.InputMethodManager; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceGroup; |
| |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.Logger; |
| import com.android.car.settings.common.PreferenceController; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| /** Updates the enabled keyboard list. */ |
| public class EnabledKeyboardPreferenceController extends |
| PreferenceController<PreferenceGroup> { |
| private static final Logger LOG = new Logger(EnabledKeyboardPreferenceController.class); |
| |
| private final Map<String, Preference> mPreferences = new ArrayMap<>(); |
| private final InputMethodManager mInputMethodManager; |
| private final DevicePolicyManager mDevicePolicyManager; |
| private final PackageManager mPackageManager; |
| |
| public EnabledKeyboardPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mPackageManager = context.getPackageManager(); |
| mDevicePolicyManager = |
| (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE); |
| mInputMethodManager = |
| (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); |
| } |
| |
| @Override |
| protected Class<PreferenceGroup> getPreferenceType() { |
| return PreferenceGroup.class; |
| } |
| |
| @Override |
| protected void updateState(PreferenceGroup preferenceGroup) { |
| List<Preference> preferencesToDisplay = new ArrayList<>(); |
| Set<String> preferencesToRemove = new HashSet<>(mPreferences.keySet()); |
| List<String> permittedList = mDevicePolicyManager.getPermittedInputMethodsForCurrentUser(); |
| List<InputMethodInfo> inputMethodInfos = mInputMethodManager.getEnabledInputMethodList(); |
| int size = (inputMethodInfos == null) ? 0 : inputMethodInfos.size(); |
| for (int i = 0; i < size; ++i) { |
| InputMethodInfo inputMethodInfo = inputMethodInfos.get(i); |
| // permittedList is Null means that all input methods are allowed. |
| boolean isAllowedByOrganization = (permittedList == null) |
| || permittedList.contains(inputMethodInfo.getPackageName()); |
| if (!isAllowedByOrganization) { |
| continue; |
| } |
| |
| Preference preference = createPreference(inputMethodInfo); |
| if (mPreferences.containsKey(preference.getKey())) { |
| Preference displayedPreference = mPreferences.get(preference.getKey()); |
| if (arePreferencesDifferent(displayedPreference, preference)) { |
| preferencesToDisplay.add(preference); |
| } else { |
| preferencesToRemove.remove(preference.getKey()); |
| } |
| } else { |
| preferencesToDisplay.add(preference); |
| } |
| } |
| updatePreferenceGroup(preferenceGroup, preferencesToDisplay, preferencesToRemove); |
| } |
| |
| private void updatePreferenceGroup( |
| PreferenceGroup preferenceGroup, List<Preference> preferencesToDisplay, |
| Set<String> preferencesToRemove) { |
| Collections.sort(preferencesToDisplay, Comparator.comparing( |
| (Preference a) -> a.getTitle().toString()) |
| .thenComparing((Preference a) -> a.getSummary().toString())); |
| |
| for (String key : preferencesToRemove) { |
| preferenceGroup.removePreference(mPreferences.get(key)); |
| mPreferences.remove(key); |
| } |
| |
| for (int i = 0; i < preferencesToDisplay.size(); ++i) { |
| Preference pref = preferencesToDisplay.get(i); |
| pref.setOrder(i); |
| mPreferences.put(pref.getKey(), pref); |
| preferenceGroup.addPreference(pref); |
| } |
| } |
| |
| /** |
| * Creates a preference. |
| */ |
| private Preference createPreference(InputMethodInfo inputMethodInfo) { |
| Preference preference = new Preference(getContext()); |
| preference.setKey(String.valueOf(inputMethodInfo.hashCode())); |
| preference.setIcon(InputMethodUtil.getPackageIcon(mPackageManager, inputMethodInfo)); |
| preference.setTitle(InputMethodUtil.getPackageLabel(mPackageManager, inputMethodInfo)); |
| preference.setSummary(InputMethodUtil.getSummaryString( |
| getContext(), mInputMethodManager, inputMethodInfo)); |
| preference.setOnPreferenceClickListener(pref -> { |
| try { |
| Intent intent = new Intent(Intent.ACTION_MAIN); |
| String settingsActivity = inputMethodInfo.getSettingsActivity(); |
| intent.setClassName(inputMethodInfo.getPackageName(), settingsActivity); |
| // Invoke a settings activity of an input method. |
| getContext().startActivity(intent); |
| } catch (final ActivityNotFoundException e) { |
| LOG.d("IME's Settings Activity Not Found. " + e); |
| } |
| return true; |
| }); |
| return preference; |
| } |
| |
| private boolean arePreferencesDifferent(Preference lhs, Preference rhs) { |
| return !Objects.equals(lhs.getTitle(), rhs.getTitle()) |
| || !Objects.equals(lhs.getSummary(), rhs.getSummary()); |
| } |
| } |