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/*
* Copyright (C) 2019 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.admin.DevicePolicyManager;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settings.core.BasePreferenceController;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.inputmethod.InputMethodPreference;
import java.text.Collator;
import java.util.ArrayList;
import java.util.List;
import com.google.common.annotations.VisibleForTesting;
public class InputMethodPreferenceController extends BasePreferenceController implements
LifecycleObserver, OnStart {
@VisibleForTesting
PreferenceScreen mScreen;
private Preference mPreference;
private InputMethodManager mImm;
private DevicePolicyManager mDpm;
public InputMethodPreferenceController(Context context, String key) {
super(context, key);
mImm = context.getSystemService(InputMethodManager.class);
mDpm = context.getSystemService(DevicePolicyManager.class);
}
@Override
public int getAvailabilityStatus() {
return AVAILABLE_UNSEARCHABLE;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mScreen = screen;
mPreference = mScreen.findPreference(getPreferenceKey());
}
@Override
public void onStart() {
updateInputMethodPreferenceViews();
}
private void updateInputMethodPreferenceViews() {
final List<InputMethodPreference> preferenceList = new ArrayList<>();
final List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
final List<InputMethodInfo> imis = mImm.getEnabledInputMethodList();
final int N = (imis == null ? 0 : imis.size());
for (int i = 0; i < N; ++i) {
final InputMethodInfo imi = imis.get(i);
final boolean isAllowedByOrganization = permittedList == null
|| permittedList.contains(imi.getPackageName());
final Drawable icon = imi.loadIcon(mContext.getPackageManager());
final InputMethodPreference pref = new InputMethodPreference(
mScreen.getContext(),
imi,
false, /* isImeEnabler */
isAllowedByOrganization,
null /* this can be null since isImeEnabler is false */);
pref.setIcon(icon);
preferenceList.add(pref);
}
final Collator collator = Collator.getInstance();
preferenceList.sort((lhs, rhs) -> lhs.compareTo(rhs, collator));
mScreen.removeAll();
for (int i = 0; i < N; ++i) {
final InputMethodPreference pref = preferenceList.get(i);
pref.setOrder(i);
mScreen.addPreference(pref);
pref.updatePreferenceViews();
}
mScreen.addPreference(mPreference);
}
}
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