-
Notifications
You must be signed in to change notification settings - Fork 0
/
orc.js
228 lines (190 loc) · 6.33 KB
/
orc.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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
{
class BaseOrc {
constructor() {
const me = this
}
static parseMessage(mssg) {
return [mssg.data.fn, mssg.data.params, mssg.data.uid]
}
static dispatchMessage(fn, params) {
const me = this
return me[fn](params)
}
static uid() {
return (BaseOrc.s4() + BaseOrc.s4()) + '-' + BaseOrc.s4() + '-' + BaseOrc.s4() + '-' + BaseOrc.s4() + '-' + (BaseOrc.s4() + BaseOrc.s4() + BaseOrc.s4());
}
static s4() {
return Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1);
}
static createMethods(response) {
const me = this
response.forEach((method) => {
Object.defineProperty(me, method, {
enumerable: true,
writable: false,
value: function (...params) {
return me.post(method, params)
}
})
})
}
static create(url) {
return new MainOrc(url)
}
static createBlobURL(url) {
const me = this
if (Orc.urls[url]) return Orc.initialize.call(me, Orc.urls[url])
return fetch(url).then(resp=>resp.text()).then((response) => {
let blob;
try {
blob = new Blob([response], {
type: 'application/javascript'
});
} catch (e) {
window.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder;
blob = new BlobBuilder();
blob.append(response);
blob = blob.getBlob();
}
Orc.urls[url] = URL.createObjectURL(blob)
Orc.initialize.call(me, Orc.urls[url])
})
}
static initialize(url) {
const me = this
me.self = new Worker(url);
me.listenToWorker()
let uid = Orc.uid()
let mssg = {
'fn': "__initialize__",
'params': {},
'uid': Orc.uid()
}
me.self.postMessage(mssg)
}
}
BaseOrc.urls = {}
class ThreadOrc extends BaseOrc {
constructor(self) {
super()
const me = this
me.self = self
self.me = me
self.orc = me
self.onmessage = function (mssg) {
let [fn, params, uid] = ThreadOrc.parseMessage(mssg)
if (mssg.data.type == 'receipt') {
ThreadOrc.receipt.call(me, params)
return
}
let ret = ThreadOrc.dispatchMessage.call(me, fn, params)
if (!ret) return
if (typeof ret.then == 'function') {
ret.then((response) => {
ThreadOrc.respond.call(me, response, fn, params, uid)
})
} else {
ThreadOrc.respond.call(me, ret, fn, params, uid)
}
}
}
__initialize__() {
let arr = Object.keys(me)
arr.shift()
return arr
}
post(fn, ret, params = {}, uid = 'event') {
ThreadOrc.respond.call(this, ret, fn, params, 'uid')
}
trigger(event, args, params = {}, uid = 'event') {
ThreadOrc.respond.call(this, args, event, params, 'uid')
}
static respond(ret, fn, params, uid) {
const me = this
let mssg = {
'type': 'response',
'data': ret,
'fn': fn,
'params': params,
'uid': uid
}
me.self.postMessage(mssg)
}
static receipt(params) {
}
}
class MainOrc extends BaseOrc {
constructor(url) {
super()
const me = this
me.events = {}
me.promises = {}
me.ready = new Promise((resolve, reject) => {
Orc.createBlobURL.call(me, url)
me.on('__initialize__', (response) => {
Orc.createMethods.call(me, response)
resolve()
})
})
}
terminate() {
this.self.terminate()
}
on(eventName, callback) {
const me = this
me.events[eventName] ? me.events[eventName].push(callback) : me.events[eventName] = [callback];
return me
}
post(fn, params) {
const me = this
let uid = Orc.uid()
let mssg = {
'fn': fn,
'params': params,
'uid': uid
}
me.ready.then(() => {
me.self.postMessage(mssg)
})
me.promises[uid] = {}
me.promises[uid].promise = new Promise(function (resolve, reject) {
me.promises[uid].resolve = resolve
me.promises[uid].reject = reject
me.promises[uid].fn = fn
me.promises[uid].params = params
})
return me.promises[uid].promise
}
trigger(fn, data) {
const me = this
if (!me.events[fn]) return
me.events[fn].forEach((f) => {
f(data)
});
}
listenToWorker() {
const me = this
me.self.addEventListener('message', function (mssg) {
let [fn, params, uid] = Orc.parseMessage(mssg)
if (mssg.data.type == 'response') {
me.resolveMessage(uid, mssg.data.data)
me.acknowledgeWorker()
me.trigger(fn, mssg.data.data)
}
})
}
resolveMessage(uid, data) {
const me = this
if (uid && me.promises[uid]) me.promises[uid].resolve(data)
}
acknowledgeWorker(data) {
const me = this
let mssg = {
'type': 'receipt',
'data': data,
}
me.self.postMessage(mssg)
}
}
(self.document === undefined) ? new ThreadOrc(self): window.Orc = BaseOrc;
}