-
Notifications
You must be signed in to change notification settings - Fork 1.8k
/
DiskStorage.js
175 lines (155 loc) · 5.32 KB
/
DiskStorage.js
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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
// ______________ (indexed-db)
// DiskStorage.js
/**
* DiskStorage is a standalone object used by {@link RecordRTC} to store recorded blobs in IndexedDB storage.
* @summary Writing blobs into IndexedDB.
* @license {@link https://github.com/muaz-khan/RecordRTC/blob/master/LICENSE|MIT}
* @author {@link https://MuazKhan.com|Muaz Khan}
* @example
* DiskStorage.Store({
* audioBlob: yourAudioBlob,
* videoBlob: yourVideoBlob,
* gifBlob : yourGifBlob
* });
* DiskStorage.Fetch(function(dataURL, type) {
* if(type === 'audioBlob') { }
* if(type === 'videoBlob') { }
* if(type === 'gifBlob') { }
* });
* // DiskStorage.dataStoreName = 'recordRTC';
* // DiskStorage.onError = function(error) { };
* @property {function} init - This method must be called once to initialize IndexedDB ObjectStore. Though, it is auto-used internally.
* @property {function} Fetch - This method fetches stored blobs from IndexedDB.
* @property {function} Store - This method stores blobs in IndexedDB.
* @property {function} onError - This function is invoked for any known/unknown error.
* @property {string} dataStoreName - Name of the ObjectStore created in IndexedDB storage.
* @see {@link https://github.com/muaz-khan/RecordRTC|RecordRTC Source Code}
*/
var DiskStorage = {
/**
* This method must be called once to initialize IndexedDB ObjectStore. Though, it is auto-used internally.
* @method
* @memberof DiskStorage
* @internal
* @example
* DiskStorage.init();
*/
init: function() {
var self = this;
if (typeof indexedDB === 'undefined' || typeof indexedDB.open === 'undefined') {
console.error('IndexedDB API are not available in this browser.');
return;
}
var dbVersion = 1;
var dbName = this.dbName || location.href.replace(/\/|:|#|%|\.|\[|\]/g, ''),
db;
var request = indexedDB.open(dbName, dbVersion);
function createObjectStore(dataBase) {
dataBase.createObjectStore(self.dataStoreName);
}
function putInDB() {
var transaction = db.transaction([self.dataStoreName], 'readwrite');
if (self.videoBlob) {
transaction.objectStore(self.dataStoreName).put(self.videoBlob, 'videoBlob');
}
if (self.gifBlob) {
transaction.objectStore(self.dataStoreName).put(self.gifBlob, 'gifBlob');
}
if (self.audioBlob) {
transaction.objectStore(self.dataStoreName).put(self.audioBlob, 'audioBlob');
}
function getFromStore(portionName) {
transaction.objectStore(self.dataStoreName).get(portionName).onsuccess = function(event) {
if (self.callback) {
self.callback(event.target.result, portionName);
}
};
}
getFromStore('audioBlob');
getFromStore('videoBlob');
getFromStore('gifBlob');
}
request.onerror = self.onError;
request.onsuccess = function() {
db = request.result;
db.onerror = self.onError;
if (db.setVersion) {
if (db.version !== dbVersion) {
var setVersion = db.setVersion(dbVersion);
setVersion.onsuccess = function() {
createObjectStore(db);
putInDB();
};
} else {
putInDB();
}
} else {
putInDB();
}
};
request.onupgradeneeded = function(event) {
createObjectStore(event.target.result);
};
},
/**
* This method fetches stored blobs from IndexedDB.
* @method
* @memberof DiskStorage
* @internal
* @example
* DiskStorage.Fetch(function(dataURL, type) {
* if(type === 'audioBlob') { }
* if(type === 'videoBlob') { }
* if(type === 'gifBlob') { }
* });
*/
Fetch: function(callback) {
this.callback = callback;
this.init();
return this;
},
/**
* This method stores blobs in IndexedDB.
* @method
* @memberof DiskStorage
* @internal
* @example
* DiskStorage.Store({
* audioBlob: yourAudioBlob,
* videoBlob: yourVideoBlob,
* gifBlob : yourGifBlob
* });
*/
Store: function(config) {
this.audioBlob = config.audioBlob;
this.videoBlob = config.videoBlob;
this.gifBlob = config.gifBlob;
this.init();
return this;
},
/**
* This function is invoked for any known/unknown error.
* @method
* @memberof DiskStorage
* @internal
* @example
* DiskStorage.onError = function(error){
* alerot( JSON.stringify(error) );
* };
*/
onError: function(error) {
console.error(JSON.stringify(error, null, '\t'));
},
/**
* @property {string} dataStoreName - Name of the ObjectStore created in IndexedDB storage.
* @memberof DiskStorage
* @internal
* @example
* DiskStorage.dataStoreName = 'recordRTC';
*/
dataStoreName: 'recordRTC',
dbName: null
};
if (typeof RecordRTC !== 'undefined') {
RecordRTC.DiskStorage = DiskStorage;
}