| /* |
| * Copyright (C) 2023 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.systemui.accessibility.floatingmenu; |
| |
| import android.text.TextUtils; |
| |
| import androidx.recyclerview.widget.DiffUtil; |
| |
| import com.android.internal.accessibility.dialog.AccessibilityTarget; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A {@link DiffUtil.Callback} to calculate the difference between old and new menu target List. |
| */ |
| class MenuTargetsCallback extends DiffUtil.Callback { |
| private final List<AccessibilityTarget> mOldTargets = new ArrayList<>(); |
| private final List<AccessibilityTarget> mNewTargets = new ArrayList<>(); |
| |
| MenuTargetsCallback(List<AccessibilityTarget> oldTargets, |
| List<AccessibilityTarget> newTargets) { |
| mOldTargets.addAll(oldTargets); |
| mNewTargets.addAll(newTargets); |
| } |
| |
| @Override |
| public int getOldListSize() { |
| return mOldTargets.size(); |
| } |
| |
| @Override |
| public int getNewListSize() { |
| return mNewTargets.size(); |
| } |
| |
| @Override |
| public boolean areItemsTheSame(int oldIndex, int newIndex) { |
| return mOldTargets.get(oldIndex).getId().equals(mNewTargets.get(newIndex).getId()); |
| } |
| |
| @Override |
| public boolean areContentsTheSame(int oldIndex, int newIndex) { |
| if (!TextUtils.equals(mOldTargets.get(oldIndex).getLabel(), |
| mNewTargets.get(newIndex).getLabel())) { |
| return false; |
| } |
| |
| if (!TextUtils.equals(mOldTargets.get(oldIndex).getStateDescription(), |
| mNewTargets.get(newIndex).getStateDescription())) { |
| return false; |
| } |
| |
| return true; |
| } |
| } |