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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Custom binding for the Media Gallery API.
var binding = require('binding').Binding.create('mediaGalleries');
var blobNatives = requireNative('blob_natives');
var mediaGalleriesNatives = requireNative('mediaGalleries');
var mediaGalleriesMetadata = {};
function createFileSystemObjectsAndUpdateMetadata(response) {
var result = [];
mediaGalleriesMetadata = {}; // Clear any previous metadata.
if (response) {
for (var i = 0; i < response.length; i++) {
var filesystem = mediaGalleriesNatives.GetMediaFileSystemObject(
response[i].fsid);
$Array.push(result, filesystem);
var metadata = response[i];
delete metadata.fsid;
mediaGalleriesMetadata[filesystem.name] = metadata;
}
}
return result;
}
binding.registerCustomHook(function(bindingsAPI, extensionId) {
var apiFunctions = bindingsAPI.apiFunctions;
// getMediaFileSystems, addUserSelectedFolder, and addScanResults use a
// custom callback so that they can instantiate and return an array of file
// system objects.
apiFunctions.setCustomCallback('getMediaFileSystems',
function(name, request, response) {
var result = createFileSystemObjectsAndUpdateMetadata(response);
if (request.callback)
request.callback(result);
request.callback = null;
});
apiFunctions.setCustomCallback('addScanResults',
function(name, request, response) {
var result = createFileSystemObjectsAndUpdateMetadata(response);
if (request.callback)
request.callback(result);
request.callback = null;
});
apiFunctions.setCustomCallback('addUserSelectedFolder',
function(name, request, response) {
var fileSystems = [];
var selectedFileSystemName = "";
if (response && 'mediaFileSystems' in response &&
'selectedFileSystemIndex' in response) {
fileSystems = createFileSystemObjectsAndUpdateMetadata(
response['mediaFileSystems']);
var selectedFileSystemIndex = response['selectedFileSystemIndex'];
if (selectedFileSystemIndex >= 0) {
selectedFileSystemName = fileSystems[selectedFileSystemIndex].name;
}
}
if (request.callback)
request.callback(fileSystems, selectedFileSystemName);
request.callback = null;
});
apiFunctions.setCustomCallback('dropPermissionForMediaFileSystem',
function(name, request, response) {
var galleryId = response;
if (galleryId) {
for (var key in mediaGalleriesMetadata) {
if (mediaGalleriesMetadata[key].galleryId == galleryId) {
delete mediaGalleriesMetadata[key];
break;
}
}
}
if (request.callback)
request.callback();
request.callback = null;
});
apiFunctions.setHandleRequest('getMediaFileSystemMetadata',
function(filesystem) {
if (filesystem && filesystem.name &&
filesystem.name in mediaGalleriesMetadata) {
return mediaGalleriesMetadata[filesystem.name];
}
return {
'name': '',
'galleryId': '',
'isRemovable': false,
'isMediaDevice': false,
'isAvailable': false,
};
});
apiFunctions.setUpdateArgumentsPostValidate('getMetadata',
function(mediaFile, options, callback) {
var blobUuid = blobNatives.GetBlobUuid(mediaFile)
return [blobUuid, options, callback];
});
apiFunctions.setCustomCallback('getMetadata',
function(name, request, response) {
if (response.attachedImagesBlobInfo) {
for (var i = 0; i < response.attachedImagesBlobInfo.length; i++) {
var blobInfo = response.attachedImagesBlobInfo[i];
var blob = blobNatives.TakeBrowserProcessBlob(
blobInfo.blobUUID, blobInfo.type, blobInfo.size);
response.metadata.attachedImages.push(blob);
}
}
if (request.callback)
request.callback(response.metadata);
request.callback = null;
});
});
exports.binding = binding.generate();
|
