1/*
 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
22/* 
23 * readAsArrayBuffer
24 * 
25 * IN:
26 *  args
27 *   0 - URL of file to read
28 *   1 - start position
29 *   2 - end position
30 * OUT:
31 *  success - ArrayBuffer of file
32 *  fail - FileError
33 */
34
35var resolve = cordova.require('cordova-plugin-file.resolveLocalFileSystemURIProxy'),
36    requestAnimationFrame = cordova.require('cordova-plugin-file.bb10RequestAnimationFrame');
37
38module.exports = function (success, fail, args) {
39    var uri = args[0],
40        start = args[1],
41        end = args[2],
42        onSuccess = function (data) {
43            if (typeof success === 'function') {
44                success(data);
45            }
46        },
47        onFail = function (error) {
48            if (typeof fail === 'function') {
49                if (error && error.code) {
50                    fail(error.code);
51                } else {
52                    fail(error);
53                }
54            }
55        };
56    resolve(function (fs) {
57        requestAnimationFrame(function () {
58            fs.nativeEntry.file(function (file) {
59                var reader = new FileReader()._realReader;
60                reader.onloadend = function () {
61                    onSuccess(this.result.slice(start, end));
62                };
63                reader.onerror = onFail;
64                reader.readAsArrayBuffer(file); 
65            }, onFail);
66        });
67    }, fail, [uri]);
68};