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.support.v7.preference.Preference; 23 import android.text.BidiFormatter; 24 import android.view.inputmethod.InputMethodInfo; 25 import android.view.inputmethod.InputMethodManager; 26 27 import com.android.settings.R; 28 import com.android.settings.core.PreferenceControllerMixin; 29 import com.android.settingslib.core.AbstractPreferenceController; 30 31 import java.util.ArrayList; 32 import java.util.List; 33 34 public class VirtualKeyboardPreferenceController extends AbstractPreferenceController 35 implements PreferenceControllerMixin { 36 37 private final InputMethodManager mImm; 38 private final DevicePolicyManager mDpm; 39 private final PackageManager mPm; 40 VirtualKeyboardPreferenceController(Context context)41 public VirtualKeyboardPreferenceController(Context context) { 42 super(context); 43 mPm = mContext.getPackageManager(); 44 mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE); 45 mImm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE); 46 } 47 48 @Override isAvailable()49 public boolean isAvailable() { 50 return mContext.getResources().getBoolean(R.bool.config_show_virtual_keyboard_pref); 51 } 52 53 @Override getPreferenceKey()54 public String getPreferenceKey() { 55 return "virtual_keyboard_pref"; 56 } 57 58 @Override updateState(Preference preference)59 public void updateState(Preference preference) { 60 final List<InputMethodInfo> imis = mImm.getEnabledInputMethodList(); 61 if (imis == null) { 62 preference.setSummary(R.string.summary_empty); 63 return; 64 } 65 66 final List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser(); 67 final List<String> labels = new ArrayList<>(); 68 69 for (InputMethodInfo imi : imis) { 70 final boolean isAllowedByOrganization = permittedList == null 71 || permittedList.contains(imi.getPackageName()); 72 if (!isAllowedByOrganization) { 73 continue; 74 } 75 labels.add(imi.loadLabel(mPm).toString()); 76 } 77 if (labels.isEmpty()) { 78 preference.setSummary(R.string.summary_empty); 79 return; 80 } 81 82 final BidiFormatter bidiFormatter = BidiFormatter.getInstance(); 83 84 String summary = null; 85 for (String label : labels) { 86 if (summary == null) { 87 summary = bidiFormatter.unicodeWrap(label); 88 } else { 89 summary = mContext.getString(R.string.join_many_items_middle, summary, 90 bidiFormatter.unicodeWrap(label)); 91 } 92 } 93 preference.setSummary(summary); 94 } 95 } 96