1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import MediaLib from '@ohos.multimedia.mediaLibrary'; 17import mediaModel from '../model/MediaModel'; 18import { MediaConstants } from '../constants/MediaConstants'; 19import { MediaDataItem } from './MediaDataItem'; 20 21export class FavorMediaDataItem extends MediaDataItem { 22 constructor(selections: string, selectionArgs: Array<string>, index: number) { 23 super(selections, selectionArgs, "", index) 24 } 25 26 async loadFileAsset(): Promise<MediaLib.FileAsset> { 27 let fetchOption: MediaLib.MediaFetchOptions; 28 if (this.status == MediaConstants.UNDEFINED) { 29 fetchOption = { 30 selections: this.selections, 31 selectionArgs: this.selectionArgs, 32 order: `date_added DESC LIMIT ${this.index},1` 33 }; 34 } else { 35 fetchOption = { 36 selections: `${MediaLib.FileKey.ID} = ?`, 37 selectionArgs: [this.id.toString()], 38 order: `date_added DESC` 39 } 40 } 41 return (await mediaModel.getAllFavorMediaItem(fetchOption, false)).fileAsset; 42 } 43 44 async setFavor(): Promise<boolean> { 45 let isSuccess: boolean = await super.setFavor(); 46 let isFavor: boolean = await super.isFavor(); 47 this.status = isFavor ? this.status : MediaConstants.TRASHED; 48 return isSuccess; 49 } 50}