lib/common/plugin/DirectoryEntry.js

var utils = require('cordova/utils'),
    exec = require('cordova/exec'),
    Entry = require('cordova/plugin/Entry'),
    FileError = require('cordova/plugin/FileError'),
    DirectoryReader = require('cordova/plugin/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) {
     DirectoryEntry.__super__.constructor.apply(this, [false, true, name, fullPath]);
};

utils.extend(DirectoryEntry, Entry);

/**
 * Creates a new DirectoryReader to read entries from this directory
 */
DirectoryEntry.prototype.createReader = function() {
    return new DirectoryReader(this.fullPath);
};

/**
 * 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 excluively 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) {
    var win = typeof successCallback !== 'function' ? null : function(result) {
        var entry = new DirectoryEntry(result.name, result.fullPath);
        successCallback(entry);
    };
    var fail = typeof errorCallback !== 'function' ? null : function(code) {
        errorCallback(new FileError(code));
    };
    exec(win, fail, "File", "getDirectory", [this.fullPath, 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) {
    var fail = typeof errorCallback !== 'function' ? null : function(code) {
        errorCallback(new FileError(code));
    };
    exec(successCallback, fail, "File", "removeRecursively", [this.fullPath]);
};

/**
 * 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 excluively 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) {
    var win = typeof successCallback !== 'function' ? null : function(result) {
        var FileEntry = require('cordova/plugin/FileEntry');
        var entry = new FileEntry(result.name, result.fullPath);
        successCallback(entry);
    };
    var fail = typeof errorCallback !== 'function' ? null : function(code) {
        errorCallback(new FileError(code));
    };
    exec(win, fail, "File", "getFile", [this.fullPath, path, options]);
};

module.exports = DirectoryEntry;