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/*
* 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.FolderInfo;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.LauncherAppWidgetInfo;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.ShortcutInfo;
import com.android.launcher3.shortcuts.ShortcutKey;
import java.util.HashSet;
/**
* A utility class to check for {@link ItemInfo}
*/
public abstract class ItemInfoMatcher {
public abstract boolean matches(ItemInfo info, ComponentName cn);
/**
* Filters {@param infos} to those satisfying the {@link #matches(ItemInfo, ComponentName)}.
*/
public final HashSet<ItemInfo> filterItemInfos(Iterable<ItemInfo> infos) {
HashSet<ItemInfo> filtered = new HashSet<>();
for (ItemInfo i : infos) {
if (i instanceof ShortcutInfo) {
ShortcutInfo info = (ShortcutInfo) i;
ComponentName cn = info.getTargetComponent();
if (cn != null && matches(info, cn)) {
filtered.add(info);
}
} else if (i instanceof FolderInfo) {
FolderInfo info = (FolderInfo) i;
for (ShortcutInfo s : info.contents) {
ComponentName cn = s.getTargetComponent();
if (cn != null && matches(s, cn)) {
filtered.add(s);
}
}
} else if (i instanceof LauncherAppWidgetInfo) {
LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) i;
ComponentName cn = info.providerName;
if (cn != null && matches(info, cn)) {
filtered.add(info);
}
}
}
return filtered;
}
public static ItemInfoMatcher ofUser(final UserHandle user) {
return new ItemInfoMatcher() {
@Override
public boolean matches(ItemInfo info, ComponentName cn) {
return info.user.equals(user);
}
};
}
public static ItemInfoMatcher ofComponents(
final HashSet<ComponentName> components, final UserHandle user) {
return new ItemInfoMatcher() {
@Override
public boolean matches(ItemInfo info, ComponentName cn) {
return components.contains(cn) && info.user.equals(user);
}
};
}
public static ItemInfoMatcher ofPackages(
final HashSet<String> packageNames, final UserHandle user) {
return new ItemInfoMatcher() {
@Override
public boolean matches(ItemInfo info, ComponentName cn) {
return packageNames.contains(cn.getPackageName()) && info.user.equals(user);
}
};
}
public static ItemInfoMatcher ofShortcutKeys(final HashSet<ShortcutKey> keys) {
return new ItemInfoMatcher() {
@Override
public boolean matches(ItemInfo info, ComponentName cn) {
return info.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT &&
keys.contains(ShortcutKey.fromItemInfo(info));
}
};
}
}
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