1/* 2 * Copyright (c) 2021-2023 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 { toast } from '../../base/utils/Common' 17import { FileMimeTypeUtil } from '../../base/utils/FileMimeTypeUtil' 18import { FILE_SUFFIX, SELECT_MODE } from '../constants/Constant'; 19import Logger from '../log/Logger'; 20import ObjectUtil from './ObjectUtil'; 21 22/** 23 * 文件选择器文件状态 24 * 25 * @param item 文件对象 26 * @param checkedNum 选中数量 27 * @return 是否超限 选择类型是否不匹配 28 */ 29export function pickerStatus(item, checkedNum) { 30 return { 31 // 选择是否超限 32 exceedLimit: globalThis.filePickerViewFlag && (checkedNum >= globalThis.filePickNum && !item.isChecked), 33 // 选择类型是否不匹配 34 differentTypes: !checkFileSelectable(item) 35 } 36} 37 38/** 39 * 根据文件后缀判断文件是否可选 40 * @param item 41 */ 42function checkFileSelectable(item): boolean { 43 // 非文件选择器场景 44 if (!globalThis.filePickerViewFlag) { 45 return true; 46 } 47 48 // selectMode检查 49 let selectMode: number = globalThis.keySelectMode; 50 let isFolder = false; 51 if (ObjectUtil.hasKey(item, 'isFolder')) { 52 isFolder = item.isFolder; 53 } 54 // 文件夹模式，直接返回 55 if(selectMode === SELECT_MODE.FOLDER){ 56 return isFolder; 57 } 58 59 if (isFolder) { 60 // 混选模式下，文件夹直接返回 61 if (selectMode === SELECT_MODE.MIX) { 62 return true; 63 } 64 // 文件模式下，文件夹直接返回false 65 return false; 66 } 67 // 后缀检查 68 let keyFileSuffixFilter: Array<string> = globalThis.keyFileSuffixFilter; 69 if (Array.isArray(keyFileSuffixFilter) && keyFileSuffixFilter.length > 0) { 70 return checkFileSuffix(item.fileName, keyFileSuffixFilter); 71 } 72 73 // mimeType检查 74 return checkFileMimetype(item.fileName); 75} 76 77/** 78 * 校验选中的文件后缀 79 * 80 * @param fileName 文件名称 81 * @param keyFileSuffixFilter 指定后缀 82 * @return 如果文件后缀满足三方指定，则返回true 83 */ 84function checkFileSuffix(fileName: string, keyFileSuffixFilter: Array<string>): boolean { 85 if (keyFileSuffixFilter) { 86 if (fileName) { 87 const suffix = FILE_SUFFIX.SUFFIX_START + FileMimeTypeUtil.getFileSuffix(fileName); 88 if (keyFileSuffixFilter.includes(suffix)) { 89 return true; 90 } 91 } 92 return false; 93 } 94 return true; 95} 96 97/** 98 * 校验选中的文件mimetype 99 * 100 * @param fileName 文件名称 101 * @return 条件满足返回true 102 */ 103function checkFileMimetype(fileName: string): boolean { 104 if (!fileName) { 105 return false 106 } 107 let keyPickTypeList: Array<string> = globalThis.keyPickTypeList 108 // 输入的类型全转换成小写，避免大小敏感问题 109 keyPickTypeList.forEach(item => item.toLowerCase()) 110 // 类型列表为空或包含*或*/*时,可选择所有文件 111 if (!keyPickTypeList || keyPickTypeList.length === 0 || keyPickTypeList.includes('*') || keyPickTypeList.includes('*/*')) { 112 return true 113 } 114 115 const mimeTypeObj = FileMimeTypeUtil.getFileMimeType(fileName) 116 const mimeType = mimeTypeObj.getMimeType() 117 118 // mimeType未知不可选 119 if (!mimeType) { 120 return false 121 } 122 123 // mimeType完全匹配 124 if (keyPickTypeList.includes(mimeType)) { 125 return true 126 } 127 128 let fileCategory = mimeType 129 const index = mimeType.indexOf('/') 130 if (index > 0) { 131 fileCategory = mimeType.substring(0, index) 132 } 133 // 某一类文件 134 if (keyPickTypeList.includes(fileCategory) || keyPickTypeList.includes(`${fileCategory}/*`)) { 135 return true 136 } 137 138 return false 139} 140 141/** 142 * 文件选择器 选择超限提示 143 * 144 * @param isImmersion 是否沉浸式 145 */ 146export const filePickerTip = () => { 147 globalThis.abilityContext.resourceManager.getPluralString($r('app.plural.filePickerTip').id, globalThis.filePickNum).then((value) => { 148 toast(value) 149 }) 150} 151 152 153