https://web.alticemusicapp.com/plugins/cordova-plugin-file/www/DirectoryReader.js

1cordova.define("cordova-plugin-file.DirectoryReader", function(require, exports, module) { /*
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements.  See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership.  The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License.  You may obtain a copy of the License at
10 *
11 *   http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied.  See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20*/
21
22const exec = require('cordova/exec');
23const FileError = require('./FileError');
24
25/**
26 * An interface that lists the files and directories in a directory.
27 */
28function DirectoryReader (localURL) {
29    this.localURL = localURL || null;
30    this.hasReadEntries = false;
31}
32
33/**
34 * Returns a list of entries from a directory.
35 *
36 * @param {Function} successCallback is called with a list of entries
37 * @param {Function} errorCallback is called with a FileError
38 */
39DirectoryReader.prototype.readEntries = function (successCallback, errorCallback) {
40    // If we've already read and passed on this directory's entries, return an empty list.
41    if (this.hasReadEntries) {
42        successCallback([]);
43        return;
44    }
45    const reader = this;
46    const win = typeof successCallback !== 'function'
47        ? null
48        : function (result) {
49            const retVal = [];
50            for (let i = 0; i < result.length; i++) {
51                let entry = null;
52                if (result[i].isDirectory) {
53                    entry = new (require('./DirectoryEntry'))();
54                } else if (result[i].isFile) {
55                    entry = new (require('./FileEntry'))();
56                }
57                entry.isDirectory = result[i].isDirectory;
58                entry.isFile = result[i].isFile;
59                entry.name = result[i].name;
60                entry.fullPath = result[i].fullPath;
61                entry.filesystem = new (require('./FileSystem'))(result[i].filesystemName);
62                entry.nativeURL = result[i].nativeURL;
63                retVal.push(entry);
64            }
65            reader.hasReadEntries = true;
66            successCallback(retVal);
67        };
68    const fail = typeof errorCallback !== 'function'
69        ? null
70        : function (code) {
71            errorCallback(new FileError(code));
72        };
73    exec(win, fail, 'File', 'readEntries', [this.localURL]);
74};
75
76module.exports = DirectoryReader;
77
78});