1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.quicksearchbox 17 18 import android.util.Log 19 20 /** 21 * A SuggestionCursor that is backed by a list of SuggestionPosition objects and doesn't allow 22 * duplicate suggestions. 23 */ 24 class ListSuggestionCursorNoDuplicates(userQuery: String?) : ListSuggestionCursor(userQuery) { 25 private val mSuggestionKeys: HashSet<String> 26 27 @Override addnull28 override fun add(suggestion: Suggestion): Boolean { 29 val key = SuggestionUtils.getSuggestionKey(suggestion) 30 return if (mSuggestionKeys.add(key)) { 31 super.add(suggestion) 32 } else { 33 if (DBG) Log.d(TAG, "Rejecting duplicate $key") 34 false 35 } 36 } 37 38 companion object { 39 private const val DBG = false 40 private const val TAG = "QSB.ListSuggestionCursorNoDuplicates" 41 } 42 43 init { 44 mSuggestionKeys = HashSet<String>() 45 } 46 } 47