a2702f6d
 刘淇
巡查计划
|
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
|
let incId = 1;
const noop = function () { };
class GImage {
static GBridge = null;
constructor() {
this._id = incId++;
this._width = 0;
this._height = 0;
this._src = undefined;
this._onload = noop;
this._onerror = noop;
this.complete = false;
}
get width() {
return this._width;
}
set width(v) {
this._width = v;
}
get height() {
return this._height;
}
set height(v) {
this._height = v;
}
get src() {
return this._src;
}
set src(v) {
if (v.startsWith('//')) {
v = 'http:' + v;
}
this._src = v;
GImage.GBridge.perloadImage([this._src, this._id], (data) => {
if (typeof data === 'string') {
data = JSON.parse(data);
}
if (data.error) {
var evt = { type: 'error', target: this };
this.onerror(evt);
} else {
this.complete = true;
this.width = typeof data.width === 'number' ? data.width : 0;
this.height = typeof data.height === 'number' ? data.height : 0;
var evt = { type: 'load', target: this };
this.onload(evt);
}
});
}
addEventListener(name, listener) {
if (name === 'load') {
this.onload = listener;
} else if (name === 'error') {
this.onerror = listener;
}
}
removeEventListener(name, listener) {
if (name === 'load') {
this.onload = noop;
} else if (name === 'error') {
this.onerror = noop;
}
}
get onload() {
return this._onload;
}
set onload(v) {
this._onload = v;
}
get onerror() {
return this._onerror;
}
set onerror(v) {
this._onerror = v;
}
}
export default GImage;
|
