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SVG.Image = SVG.invent({
// Initialize node
create: 'image',
// Inherit from
inherit: SVG.Shape,
// Add class methods
extend: {
// (re)load image
load: function (url, callback) {
if (!url) return this
var img = new window.Image()
SVG.on(img, 'load', function (e) {
var p = this.parent(SVG.Pattern)
// ensure image size
if (this.width() === 0 && this.height() === 0) {
this.size(img.width, img.height)
}
if (p instanceof SVG.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)
SVG.on(img, 'load error', function () {
// dont forget to unbind memory leaking events
SVG.off(img)
})
return this.attr('href', (img.src = url), SVG.xlink)
}
},
// Add parent method
construct: {
// create image element, load image and set its size
image: function (source, callback) {
return this.put(new SVG.Image()).size(0, 0).load(source, callback)
}
}
})
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