1 /* 2 * Copyright (C) 2016 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.Activity; 20 import android.app.admin.DevicePolicyManager; 21 import android.app.settings.SettingsEnums; 22 import android.content.Context; 23 import android.graphics.drawable.Drawable; 24 import android.os.Bundle; 25 import android.provider.SearchIndexableResource; 26 import android.view.inputmethod.InputMethodInfo; 27 import android.view.inputmethod.InputMethodManager; 28 29 import androidx.preference.Preference; 30 31 import com.android.internal.util.Preconditions; 32 import com.android.settings.R; 33 import com.android.settings.SettingsPreferenceFragment; 34 import com.android.settings.search.BaseSearchIndexProvider; 35 import com.android.settings.search.Indexable; 36 import com.android.settingslib.inputmethod.InputMethodAndSubtypeUtilCompat; 37 import com.android.settingslib.inputmethod.InputMethodPreference; 38 import com.android.settingslib.search.SearchIndexable; 39 40 import java.text.Collator; 41 import java.util.ArrayList; 42 import java.util.Arrays; 43 import java.util.List; 44 45 @SearchIndexable 46 public final class VirtualKeyboardFragment extends SettingsPreferenceFragment implements Indexable { 47 48 private static final String ADD_VIRTUAL_KEYBOARD_SCREEN = "add_virtual_keyboard_screen"; 49 50 private final ArrayList<InputMethodPreference> mInputMethodPreferenceList = new ArrayList<>(); 51 private InputMethodManager mImm; 52 private DevicePolicyManager mDpm; 53 private Preference mAddVirtualKeyboardScreen; 54 55 @Override onCreatePreferences(Bundle bundle, String s)56 public void onCreatePreferences(Bundle bundle, String s) { 57 Activity activity = Preconditions.checkNotNull(getActivity()); 58 addPreferencesFromResource(R.xml.virtual_keyboard_settings); 59 mImm = Preconditions.checkNotNull(activity.getSystemService(InputMethodManager.class)); 60 mDpm = Preconditions.checkNotNull(activity.getSystemService(DevicePolicyManager.class)); 61 mAddVirtualKeyboardScreen = Preconditions.checkNotNull( 62 findPreference(ADD_VIRTUAL_KEYBOARD_SCREEN)); 63 } 64 65 @Override onResume()66 public void onResume() { 67 super.onResume(); 68 // Refresh internal states in mInputMethodSettingValues to keep the latest 69 // "InputMethodInfo"s and "InputMethodSubtype"s 70 updateInputMethodPreferenceViews(); 71 } 72 73 @Override getMetricsCategory()74 public int getMetricsCategory() { 75 return SettingsEnums.VIRTUAL_KEYBOARDS; 76 } 77 updateInputMethodPreferenceViews()78 private void updateInputMethodPreferenceViews() { 79 // Clear existing "InputMethodPreference"s 80 mInputMethodPreferenceList.clear(); 81 List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser(); 82 final Context context = getPrefContext(); 83 final List<InputMethodInfo> imis = mImm.getEnabledInputMethodList(); 84 final int N = (imis == null ? 0 : imis.size()); 85 for (int i = 0; i < N; ++i) { 86 final InputMethodInfo imi = imis.get(i); 87 final boolean isAllowedByOrganization = permittedList == null 88 || permittedList.contains(imi.getPackageName()); 89 final Drawable icon = imi.loadIcon(context.getPackageManager()); 90 final InputMethodPreference pref = new InputMethodPreference( 91 context, 92 imi, 93 false, /* isImeEnabler */ 94 isAllowedByOrganization, 95 null /* this can be null since isImeEnabler is false */); 96 pref.setIcon(icon); 97 mInputMethodPreferenceList.add(pref); 98 } 99 final Collator collator = Collator.getInstance(); 100 mInputMethodPreferenceList.sort((lhs, rhs) -> lhs.compareTo(rhs, collator)); 101 getPreferenceScreen().removeAll(); 102 for (int i = 0; i < N; ++i) { 103 final InputMethodPreference pref = mInputMethodPreferenceList.get(i); 104 pref.setOrder(i); 105 getPreferenceScreen().addPreference(pref); 106 InputMethodAndSubtypeUtilCompat.removeUnnecessaryNonPersistentPreference(pref); 107 pref.updatePreferenceViews(); 108 } 109 mAddVirtualKeyboardScreen.setIcon(R.drawable.ic_add_24dp); 110 mAddVirtualKeyboardScreen.setOrder(N); 111 getPreferenceScreen().addPreference(mAddVirtualKeyboardScreen); 112 } 113 114 public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 115 new BaseSearchIndexProvider() { 116 @Override 117 public List<SearchIndexableResource> getXmlResourcesToIndex( 118 Context context, boolean enabled) { 119 final SearchIndexableResource sir = new SearchIndexableResource(context); 120 sir.xmlResId = R.xml.virtual_keyboard_settings; 121 return Arrays.asList(sir); 122 } 123 }; 124 } 125