92 lines
3.3 KiB
Java
92 lines
3.3 KiB
Java
/*
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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"); you may not use this file
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* except in compliance with the License. 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 distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.settings.display;
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import static android.os.UserManager.DISALLOW_SET_WALLPAPER;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.os.UserHandle;
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import android.text.TextUtils;
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import android.util.Log;
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import com.android.settings.R;
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import com.android.settings.core.PreferenceControllerMixin;
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import com.android.settingslib.RestrictedLockUtils;
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import com.android.settingslib.RestrictedPreference;
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import com.android.settingslib.core.AbstractPreferenceController;
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import java.util.List;
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import androidx.preference.Preference;
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public class WallpaperPreferenceController extends AbstractPreferenceController implements
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PreferenceControllerMixin {
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private static final String TAG = "WallpaperPrefController";
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public static final String KEY_WALLPAPER = "wallpaper";
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private final String mWallpaperPackage;
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private final String mWallpaperClass;
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public WallpaperPreferenceController(Context context) {
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super(context);
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mWallpaperPackage = mContext.getString(R.string.config_wallpaper_picker_package);
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mWallpaperClass = mContext.getString(R.string.config_wallpaper_picker_class);
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}
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@Override
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public boolean isAvailable() {
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if (TextUtils.isEmpty(mWallpaperPackage) || TextUtils.isEmpty(mWallpaperClass)) {
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Log.e(TAG, "No Wallpaper picker specified!");
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return false;
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}
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final ComponentName componentName =
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new ComponentName(mWallpaperPackage, mWallpaperClass);
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final PackageManager pm = mContext.getPackageManager();
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final Intent intent = new Intent();
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intent.setComponent(componentName);
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final List<ResolveInfo> resolveInfos =
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pm.queryIntentActivities(intent, 0 /* flags */);
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return resolveInfos != null && resolveInfos.size() != 0;
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}
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@Override
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public String getPreferenceKey() {
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return KEY_WALLPAPER;
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}
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@Override
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public void updateState(Preference preference) {
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disablePreferenceIfManaged((RestrictedPreference) preference);
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}
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private void disablePreferenceIfManaged(RestrictedPreference pref) {
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final String restriction = DISALLOW_SET_WALLPAPER;
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if (pref != null) {
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pref.setDisabledByAdmin(null);
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if (RestrictedLockUtils.hasBaseUserRestriction(mContext,
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restriction, UserHandle.myUserId())) {
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pref.setEnabled(false);
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} else {
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pref.checkRestrictionAndSetDisabled(restriction);
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}
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}
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}
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}
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