Jobqiangdan32Client/assets/cordova/plugins/org.apache.cordova.file/www/FileReader.js

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cordova.define("org.apache.cordova.file.FileReader", function(require, exports, module) { /*
 *
 * 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 exec = require('cordova/exec'),
    modulemapper = require('cordova/modulemapper'),
    utils = require('cordova/utils'),
    File = require('./File'),
    FileError = require('./FileError'),
    ProgressEvent = require('./ProgressEvent'),
    origFileReader = modulemapper.getOriginalSymbol(window, 'FileReader');

/**
 * This class reads the mobile device file system.
 *
 * For Android:
 *      The root directory is the root of the file system.
 *      To read from the SD card, the file name is "sdcard/my_file.txt"
 * @constructor
 */
var FileReader = function() {
    this._readyState = 0;
    this._error = null;
    this._result = null;
    this._localURL = '';
    this._realReader = origFileReader ? new origFileReader() : {};
};

// States
FileReader.EMPTY = 0;
FileReader.LOADING = 1;
FileReader.DONE = 2;

utils.defineGetter(FileReader.prototype, 'readyState', function() {
    return this._localURL ? this._readyState : this._realReader.readyState;
});

utils.defineGetter(FileReader.prototype, 'error', function() {
    return this._localURL ? this._error: this._realReader.error;
});

utils.defineGetter(FileReader.prototype, 'result', function() {
    return this._localURL ? this._result: this._realReader.result;