summaryrefslogtreecommitdiffstats
path: root/catalog-ui/app/scripts/services/url-tobase64-service.ts
blob: 2d6980da3f61fb6d131b3a3183901f7ff2a3b7a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed 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.
 * ============LICENSE_END=========================================================
 */
/// <reference path="../references"/>
module Sdc.Services {
    'use strict';

    export interface IUrlToBase64Service {
        downloadUrl(url:string, callback:Function):void;
    }

    export class UrlToBase64Service implements IUrlToBase64Service {
        constructor() {}

        public downloadUrl = (url:string, callback:Function): void => {
            let xhr :any = new XMLHttpRequest();
            
            xhr.onload = ():void => {
                let reader  = new FileReader();
                reader.onloadend = ():void => {
                    if (xhr.status === 200) {
                        callback(reader.result);
                    } else {
                        callback(null);
                    }
                };
                reader.readAsDataURL(xhr.response);
            };
            xhr.open('GET', url);
            xhr.responseType = 'blob';
            xhr.send();
        }

    }
}