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
|
import Shape from './Shape.js'
import Pattern from './Pattern.js'
import {on, off} from './event.js'
import {nodeOrNew} from './tools.js'
import {xlink} from './namespaces.js'
import {register} from './adopter.js'
import {registerMethods} from './methods.js'
export default class Image extends Shape {
constructor (node) {
super(nodeOrNew('image', node), Image)
}
// (re)load image
load (url, callback) {
if (!url) return this
var img = new window.Image()
on(img, 'load', function (e) {
var p = this.parent(Pattern)
// ensure image size
if (this.width() === 0 && this.height() === 0) {
this.size(img.width, img.height)
}
if (p instanceof Pattern) {
// ensure pattern size if not set
if (p.width() === 0 && p.height() === 0) {
p.size(this.width(), this.height())
}
}
if (typeof callback === 'function') {
callback.call(this, {
width: img.width,
height: img.height,
ratio: img.width / img.height,
url: url
})
}
}, this)
on(img, 'load error', function () {
// dont forget to unbind memory leaking events
off(img)
})
return this.attr('href', (img.src = url), xlink)
}
attrHook (obj) {
return obj.doc().defs().pattern(0, 0, (pattern) => {
pattern.add(this)
})
}
}
registerMethods({
Container: {
// create image element, load image and set its size
image (source, callback) {
return this.put(new Image()).size(0, 0).load(source, callback)
}
}
})
register(Image)
|
