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/*
* Copyright (C) 2012 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.users;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.AttributeSet;
import androidx.preference.PreferenceViewHolder;
import com.android.settingslib.RestrictedPreference;
import java.util.Comparator;
/**
* Preference for a user that appear on {@link UserSettings} screen.
*/
public class UserPreference extends RestrictedPreference {
private static final int ALPHA_ENABLED = 255;
private static final int ALPHA_DISABLED = 102;
public static final int USERID_UNKNOWN = -10;
public static final int USERID_GUEST_DEFAULTS = -11;
public static final Comparator<UserPreference> SERIAL_NUMBER_COMPARATOR =
(p1, p2) -> {
if (p1 == null) {
return -1;
} else if (p2 == null) {
return 1;
}
int sn1 = p1.getSerialNumber();
int sn2 = p2.getSerialNumber();
if (sn1 < sn2) {
return -1;
} else if (sn1 > sn2) {
return 1;
}
return 0;
};
private int mSerialNumber = -1;
private int mUserId = USERID_UNKNOWN;
public UserPreference(Context context, AttributeSet attrs) {
this(context, attrs, USERID_UNKNOWN);
}
UserPreference(Context context, AttributeSet attrs, int userId) {
super(context, attrs);
mUserId = userId;
useAdminDisabledSummary(true);
}
private void dimIcon(boolean dimmed) {
Drawable icon = getIcon();
if (icon != null) {
icon.mutate().setAlpha(dimmed ? ALPHA_DISABLED : ALPHA_ENABLED);
setIcon(icon);
}
}
@Override
protected boolean shouldHideSecondTarget() {
return true;
}
@Override
public void onBindViewHolder(PreferenceViewHolder view) {
super.onBindViewHolder(view);
dimIcon(isDisabledByAdmin());
}
private int getSerialNumber() {
if (mUserId == UserHandle.myUserId()) return Integer.MIN_VALUE;
if (mSerialNumber < 0) {
// If the userId is unknown
if (mUserId == USERID_UNKNOWN) {
return Integer.MAX_VALUE;
} else if (mUserId == USERID_GUEST_DEFAULTS) {
return Integer.MAX_VALUE - 1;
}
mSerialNumber = ((UserManager) getContext().getSystemService(Context.USER_SERVICE))
.getUserSerialNumber(mUserId);
if (mSerialNumber < 0) return mUserId;
}
return mSerialNumber;
}
public int getUserId() {
return mUserId;
}
}