/*
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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");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.util;
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import android.content.ComponentName;
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import android.os.UserHandle;
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import com.android.launcher3.FolderInfo;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.LauncherAppWidgetInfo;
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import com.android.launcher3.LauncherSettings.Favorites;
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import com.android.launcher3.WorkspaceItemInfo;
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import com.android.launcher3.shortcuts.ShortcutKey;
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import java.util.HashSet;
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/**
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* A utility class to check for {@link ItemInfo}
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*/
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public interface ItemInfoMatcher {
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boolean matches(ItemInfo info, ComponentName cn);
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/**
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* Filters {@param infos} to those satisfying the {@link #matches(ItemInfo, ComponentName)}.
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*/
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default HashSet<ItemInfo> filterItemInfos(Iterable<ItemInfo> infos) {
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HashSet<ItemInfo> filtered = new HashSet<>();
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for (ItemInfo i : infos) {
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if (i instanceof WorkspaceItemInfo) {
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WorkspaceItemInfo info = (WorkspaceItemInfo) i;
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ComponentName cn = info.getTargetComponent();
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if (cn != null && matches(info, cn)) {
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filtered.add(info);
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}
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} else if (i instanceof FolderInfo) {
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FolderInfo info = (FolderInfo) i;
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for (WorkspaceItemInfo s : info.contents) {
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ComponentName cn = s.getTargetComponent();
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if (cn != null && matches(s, cn)) {
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filtered.add(s);
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}
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}
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} else if (i instanceof LauncherAppWidgetInfo) {
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LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) i;
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ComponentName cn = info.providerName;
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if (cn != null && matches(info, cn)) {
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filtered.add(info);
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}
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}
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}
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return filtered;
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}
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/**
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* Returns a new matcher with returns true if either this or {@param matcher} returns true.
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*/
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default ItemInfoMatcher or(ItemInfoMatcher matcher) {
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return (info, cn) -> matches(info, cn) || matcher.matches(info, cn);
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}
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/**
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* Returns a new matcher with returns true if both this and {@param matcher} returns true.
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*/
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default ItemInfoMatcher and(ItemInfoMatcher matcher) {
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return (info, cn) -> matches(info, cn) && matcher.matches(info, cn);
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}
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/**
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* Returns a new matcher which returns the opposite boolean value of the provided
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* {@param matcher}.
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*/
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static ItemInfoMatcher not(ItemInfoMatcher matcher) {
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return (info, cn) -> !matcher.matches(info, cn);
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}
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static ItemInfoMatcher ofUser(UserHandle user) {
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return (info, cn) -> info.user.equals(user);
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}
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static ItemInfoMatcher ofComponents(HashSet<ComponentName> components, UserHandle user) {
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return (info, cn) -> components.contains(cn) && info.user.equals(user);
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}
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static ItemInfoMatcher ofPackages(HashSet<String> packageNames, UserHandle user) {
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return (info, cn) -> packageNames.contains(cn.getPackageName()) && info.user.equals(user);
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}
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static ItemInfoMatcher ofShortcutKeys(HashSet<ShortcutKey> keys) {
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return (info, cn) -> info.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT &&
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keys.contains(ShortcutKey.fromItemInfo(info));
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}
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static ItemInfoMatcher ofItemIds(IntSparseArrayMap<Boolean> ids, Boolean matchDefault) {
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return (info, cn) -> ids.get(info.id, matchDefault);
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}
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}
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