/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.inputmethod;
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import android.app.Activity;
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import android.app.admin.DevicePolicyManager;
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import android.app.settings.SettingsEnums;
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import android.content.Context;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.provider.SearchIndexableResource;
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import android.view.inputmethod.InputMethodInfo;
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import android.view.inputmethod.InputMethodManager;
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import androidx.preference.Preference;
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import com.android.internal.util.Preconditions;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import com.android.settings.search.BaseSearchIndexProvider;
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import com.android.settings.search.Indexable;
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import com.android.settingslib.inputmethod.InputMethodAndSubtypeUtilCompat;
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import com.android.settingslib.inputmethod.InputMethodPreference;
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import com.android.settingslib.search.SearchIndexable;
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import java.text.Collator;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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@SearchIndexable
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public final class VirtualKeyboardFragment extends SettingsPreferenceFragment implements Indexable {
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private static final String ADD_VIRTUAL_KEYBOARD_SCREEN = "add_virtual_keyboard_screen";
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private final ArrayList<InputMethodPreference> mInputMethodPreferenceList = new ArrayList<>();
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private InputMethodManager mImm;
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private DevicePolicyManager mDpm;
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private Preference mAddVirtualKeyboardScreen;
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@Override
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public void onCreatePreferences(Bundle bundle, String s) {
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Activity activity = Preconditions.checkNotNull(getActivity());
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addPreferencesFromResource(R.xml.virtual_keyboard_settings);
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mImm = Preconditions.checkNotNull(activity.getSystemService(InputMethodManager.class));
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mDpm = Preconditions.checkNotNull(activity.getSystemService(DevicePolicyManager.class));
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mAddVirtualKeyboardScreen = Preconditions.checkNotNull(
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findPreference(ADD_VIRTUAL_KEYBOARD_SCREEN));
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}
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@Override
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public void onResume() {
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super.onResume();
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// Refresh internal states in mInputMethodSettingValues to keep the latest
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// "InputMethodInfo"s and "InputMethodSubtype"s
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updateInputMethodPreferenceViews();
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}
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@Override
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public int getMetricsCategory() {
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return SettingsEnums.VIRTUAL_KEYBOARDS;
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}
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private void updateInputMethodPreferenceViews() {
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// Clear existing "InputMethodPreference"s
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mInputMethodPreferenceList.clear();
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List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
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final Context context = getPrefContext();
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final List<InputMethodInfo> imis = mImm.getEnabledInputMethodList();
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final int N = (imis == null ? 0 : imis.size());
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for (int i = 0; i < N; ++i) {
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final InputMethodInfo imi = imis.get(i);
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final boolean isAllowedByOrganization = permittedList == null
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|| permittedList.contains(imi.getPackageName());
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final Drawable icon = imi.loadIcon(context.getPackageManager());
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final InputMethodPreference pref = new InputMethodPreference(
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context,
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imi,
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false, /* isImeEnabler */
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isAllowedByOrganization,
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null /* this can be null since isImeEnabler is false */);
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pref.setIcon(icon);
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mInputMethodPreferenceList.add(pref);
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}
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final Collator collator = Collator.getInstance();
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mInputMethodPreferenceList.sort((lhs, rhs) -> lhs.compareTo(rhs, collator));
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getPreferenceScreen().removeAll();
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for (int i = 0; i < N; ++i) {
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final InputMethodPreference pref = mInputMethodPreferenceList.get(i);
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pref.setOrder(i);
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getPreferenceScreen().addPreference(pref);
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InputMethodAndSubtypeUtilCompat.removeUnnecessaryNonPersistentPreference(pref);
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pref.updatePreferenceViews();
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}
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mAddVirtualKeyboardScreen.setIcon(R.drawable.ic_add_24dp);
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mAddVirtualKeyboardScreen.setOrder(N);
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getPreferenceScreen().addPreference(mAddVirtualKeyboardScreen);
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}
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public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
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new BaseSearchIndexProvider() {
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@Override
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public List<SearchIndexableResource> getXmlResourcesToIndex(
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Context context, boolean enabled) {
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final SearchIndexableResource sir = new SearchIndexableResource(context);
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sir.xmlResId = R.xml.virtual_keyboard_settings;
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return Arrays.asList(sir);
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}
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};
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}
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