1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.inputmethod; 18 19 import android.app.admin.DevicePolicyManager; 20 import android.content.Context; 21 import android.content.pm.PackageManager; 22 import android.icu.text.ListFormatter; 23 import android.text.BidiFormatter; 24 import android.view.inputmethod.InputMethodInfo; 25 import android.view.inputmethod.InputMethodManager; 26 27 import androidx.preference.Preference; 28 29 import com.android.settings.R; 30 import com.android.settings.core.PreferenceControllerMixin; 31 import com.android.settingslib.core.AbstractPreferenceController; 32 33 import java.util.ArrayList; 34 import java.util.List; 35 36 public class VirtualKeyboardPreferenceController extends AbstractPreferenceController 37 implements PreferenceControllerMixin { 38 39 private final InputMethodManager mImm; 40 private final DevicePolicyManager mDpm; 41 private final PackageManager mPm; 42 VirtualKeyboardPreferenceController(Context context)43 public VirtualKeyboardPreferenceController(Context context) { 44 super(context); 45 mPm = mContext.getPackageManager(); 46 mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE); 47 mImm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE); 48 } 49 50 @Override isAvailable()51 public boolean isAvailable() { 52 return mContext.getResources().getBoolean(R.bool.config_show_virtual_keyboard_pref); 53 } 54 55 @Override getPreferenceKey()56 public String getPreferenceKey() { 57 return "virtual_keyboard_pref"; 58 } 59 60 @Override updateState(Preference preference)61 public void updateState(Preference preference) { 62 final List<InputMethodInfo> imis = mImm.getEnabledInputMethodList(); 63 if (imis == null) { 64 preference.setSummary(R.string.summary_empty); 65 return; 66 } 67 68 final List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser(); 69 final List<String> labels = new ArrayList<>(); 70 71 for (InputMethodInfo imi : imis) { 72 final boolean isAllowedByOrganization = permittedList == null 73 || permittedList.contains(imi.getPackageName()); 74 if (!isAllowedByOrganization) { 75 continue; 76 } 77 labels.add(imi.loadLabel(mPm).toString()); 78 } 79 if (labels.isEmpty()) { 80 preference.setSummary(R.string.summary_empty); 81 return; 82 } 83 84 final BidiFormatter bidiFormatter = BidiFormatter.getInstance(); 85 86 final List<String> summaries = new ArrayList<>(); 87 for (String label : labels) { 88 summaries.add(bidiFormatter.unicodeWrap(label)); 89 } 90 preference.setSummary(ListFormatter.getInstance().format(summaries)); 91 } 92 } 93