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/*
* Copyright (C) 2016 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.settings.inputmethod;
import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Bundle;
import android.provider.SearchIndexableResource;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settingslib.inputmethod.InputMethodAndSubtypeUtilCompat;
import com.android.settingslib.inputmethod.InputMethodPreference;
import com.android.settingslib.inputmethod.InputMethodSettingValuesWrapper;
import com.android.settingslib.search.SearchIndexable;
import java.text.Collator;
import java.util.ArrayList;
import java.util.List;
@SearchIndexable
public final class AvailableVirtualKeyboardFragment extends SettingsPreferenceFragment
implements InputMethodPreference.OnSavePreferenceListener {
private final ArrayList<InputMethodPreference> mInputMethodPreferenceList = new ArrayList<>();
private InputMethodSettingValuesWrapper mInputMethodSettingValues;
private InputMethodManager mImm;
private DevicePolicyManager mDpm;
@Override
public void onCreatePreferences(Bundle bundle, String s) {
addPreferencesFromResource(R.xml.available_virtual_keyboard);
Activity activity = getActivity();
mInputMethodSettingValues = InputMethodSettingValuesWrapper.getInstance(activity);
mImm = activity.getSystemService(InputMethodManager.class);
mDpm = activity.getSystemService(DevicePolicyManager.class);
}
@Override
public void onResume() {
super.onResume();
// Refresh internal states in mInputMethodSettingValues to keep the latest
// "InputMethodInfo"s and "InputMethodSubtype"s
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
updateInputMethodPreferenceViews();
}
@Override
public void onSaveInputMethodPreference(final InputMethodPreference pref) {
final boolean hasHardwareKeyboard = getResources().getConfiguration().keyboard
== Configuration.KEYBOARD_QWERTY;
InputMethodAndSubtypeUtilCompat.saveInputMethodSubtypeList(this, getContentResolver(),
mImm.getInputMethodList(), hasHardwareKeyboard);
// Update input method settings and preference list.
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
for (final InputMethodPreference p : mInputMethodPreferenceList) {
p.updatePreferenceViews();
}
}
@Override
public int getMetricsCategory() {
return SettingsEnums.ENABLE_VIRTUAL_KEYBOARDS;
}
private void updateInputMethodPreferenceViews() {
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
// Clear existing "InputMethodPreference"s
mInputMethodPreferenceList.clear();
List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
final Context context = getPrefContext();
final List<InputMethodInfo> imis = mInputMethodSettingValues.getInputMethodList();
final List<InputMethodInfo> enabledImis = mImm.getEnabledInputMethodList();
final int numImis = (imis == null ? 0 : imis.size());
for (int i = 0; i < numImis; ++i) {
final InputMethodInfo imi = imis.get(i);
// TODO (b/182876800): Move this logic out of isAllowedByOrganization and
// into a new boolean.
// If an input method is enabled but not included in the permitted list, then set it as
// allowed by organization. Doing so will allow the user to disable the input method and
// remain complaint with the organization's policy. Once disabled, the input method
// cannot be re-enabled because it is not in the permitted list.
final boolean isAllowedByOrganization = permittedList == null
|| permittedList.contains(imi.getPackageName())
|| enabledImis.contains(imi);
final InputMethodPreference pref = new InputMethodPreference(
context, imi, true, isAllowedByOrganization, this);
pref.setIcon(imi.loadIcon(context.getPackageManager()));
mInputMethodPreferenceList.add(pref);
}
final Collator collator = Collator.getInstance();
mInputMethodPreferenceList.sort((lhs, rhs) -> lhs.compareTo(rhs, collator));
getPreferenceScreen().removeAll();
for (int i = 0; i < numImis; ++i) {
final InputMethodPreference pref = mInputMethodPreferenceList.get(i);
pref.setOrder(i);
getPreferenceScreen().addPreference(pref);
InputMethodAndSubtypeUtilCompat.removeUnnecessaryNonPersistentPreference(pref);
pref.updatePreferenceViews();
}
}
public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
boolean enabled) {
List<SearchIndexableResource> res = new ArrayList<>();
SearchIndexableResource index = new SearchIndexableResource(context);
index.xmlResId = R.xml.available_virtual_keyboard;
res.add(index);
return res;
}
};
}
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