yunkong2.vis.cordova/plugins/cordova-plugin-file/www/DirectoryEntry.js
2018-09-22 10:44:38 +08:00

118 lines
4.5 KiB
JavaScript

/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
var argscheck = require('cordova/argscheck'),
utils = require('cordova/utils'),
exec = require('cordova/exec'),
Entry = require('./Entry'),
FileError = require('./FileError'),
DirectoryReader = require('./DirectoryReader');
/**
* An interface representing a directory on the file system.
*
* {boolean} isFile always false (readonly)
* {boolean} isDirectory always true (readonly)
* {DOMString} name of the directory, excluding the path leading to it (readonly)
* {DOMString} fullPath the absolute full path to the directory (readonly)
* {FileSystem} filesystem on which the directory resides (readonly)
*/
var DirectoryEntry = function(name, fullPath, fileSystem, nativeURL) {
// add trailing slash if it is missing
if ((fullPath) && !/\/$/.test(fullPath)) {
fullPath += "/";
}
// add trailing slash if it is missing
if (nativeURL && !/\/$/.test(nativeURL)) {
nativeURL += "/";
}
DirectoryEntry.__super__.constructor.call(this, false, true, name, fullPath, fileSystem, nativeURL);
};
utils.extend(DirectoryEntry, Entry);
/**
* Creates a new DirectoryReader to read entries from this directory
*/
DirectoryEntry.prototype.createReader = function() {
return new DirectoryReader(this.toInternalURL());
};
/**
* Creates or looks up a directory
*
* @param {DOMString} path either a relative or absolute path from this directory in which to look up or create a directory
* @param {Flags} options to create or exclusively create the directory
* @param {Function} successCallback is called with the new entry
* @param {Function} errorCallback is called with a FileError
*/
DirectoryEntry.prototype.getDirectory = function(path, options, successCallback, errorCallback) {
argscheck.checkArgs('sOFF', 'DirectoryEntry.getDirectory', arguments);
var fs = this.filesystem;
var win = successCallback && function(result) {
var entry = new DirectoryEntry(result.name, result.fullPath, fs, result.nativeURL);
successCallback(entry);
};
var fail = errorCallback && function(code) {
errorCallback(new FileError(code));
};
exec(win, fail, "File", "getDirectory", [this.toInternalURL(), path, options]);
};
/**
* Deletes a directory and all of it's contents
*
* @param {Function} successCallback is called with no parameters
* @param {Function} errorCallback is called with a FileError
*/
DirectoryEntry.prototype.removeRecursively = function(successCallback, errorCallback) {
argscheck.checkArgs('FF', 'DirectoryEntry.removeRecursively', arguments);
var fail = errorCallback && function(code) {
errorCallback(new FileError(code));
};
exec(successCallback, fail, "File", "removeRecursively", [this.toInternalURL()]);
};
/**
* Creates or looks up a file
*
* @param {DOMString} path either a relative or absolute path from this directory in which to look up or create a file
* @param {Flags} options to create or exclusively create the file
* @param {Function} successCallback is called with the new entry
* @param {Function} errorCallback is called with a FileError
*/
DirectoryEntry.prototype.getFile = function(path, options, successCallback, errorCallback) {
argscheck.checkArgs('sOFF', 'DirectoryEntry.getFile', arguments);
var fs = this.filesystem;
var win = successCallback && function(result) {
var FileEntry = require('./FileEntry');
var entry = new FileEntry(result.name, result.fullPath, fs, result.nativeURL);
successCallback(entry);
};
var fail = errorCallback && function(code) {
errorCallback(new FileError(code));
};
exec(win, fail, "File", "getFile", [this.toInternalURL(), path, options]);
};
module.exports = DirectoryEntry;