| /* |
| * 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.launcher3.util; |
| |
| import android.content.ComponentName; |
| import android.os.UserHandle; |
| |
| import com.android.launcher3.LauncherSettings.Favorites; |
| import com.android.launcher3.model.data.ItemInfo; |
| import com.android.launcher3.shortcuts.ShortcutKey; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * A utility class to check for {@link ItemInfo} |
| */ |
| public interface ItemInfoMatcher { |
| |
| boolean matches(ItemInfo info, ComponentName cn); |
| |
| /** |
| * Returns true if the itemInfo matches this check |
| */ |
| default boolean matchesInfo(ItemInfo info) { |
| if (info != null) { |
| ComponentName cn = info.getTargetComponent(); |
| return cn != null && matches(info, cn); |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns a new matcher with returns true if either this or {@param matcher} returns true. |
| */ |
| default ItemInfoMatcher or(ItemInfoMatcher matcher) { |
| return (info, cn) -> matches(info, cn) || matcher.matches(info, cn); |
| } |
| |
| /** |
| * Returns a new matcher with returns true if both this and {@param matcher} returns true. |
| */ |
| default ItemInfoMatcher and(ItemInfoMatcher matcher) { |
| return (info, cn) -> matches(info, cn) && matcher.matches(info, cn); |
| } |
| |
| /** |
| * Returns a new matcher with returns the opposite value of this. |
| */ |
| default ItemInfoMatcher negate() { |
| return (info, cn) -> !matches(info, cn); |
| } |
| |
| static ItemInfoMatcher ofUser(UserHandle user) { |
| return (info, cn) -> info.user.equals(user); |
| } |
| |
| static ItemInfoMatcher ofComponents(HashSet<ComponentName> components, UserHandle user) { |
| return (info, cn) -> components.contains(cn) && info.user.equals(user); |
| } |
| |
| static ItemInfoMatcher ofPackages(Set<String> packageNames, UserHandle user) { |
| return (info, cn) -> packageNames.contains(cn.getPackageName()) && info.user.equals(user); |
| } |
| |
| static ItemInfoMatcher ofShortcutKeys(Set<ShortcutKey> keys) { |
| return (info, cn) -> info.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT && |
| keys.contains(ShortcutKey.fromItemInfo(info)); |
| } |
| |
| /** |
| * Returns a matcher for items with provided ids |
| */ |
| static ItemInfoMatcher ofItemIds(IntSet ids) { |
| return (info, cn) -> ids.contains(info.id); |
| } |
| } |