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SVG.Mask = SVG.invent({
// Initialize node
create: 'mask',
// Inherit from
inherit: SVG.Container,
// Add class methods
extend: {
// Unmask all masked elements and remove itself
remove: function () {
// unmask all targets
this.targets().forEach(function (el) {
el.unmask()
})
// remove mask from parent
return SVG.Element.prototype.remove.call(this)
},
targets: function () {
return SVG.select('svg [mask*="' + this.id() + '"]')
}
},
// Add parent method
construct: {
// Create masking element
mask: function () {
return this.defs().put(new SVG.Mask())
}
}
})
SVG.extend(SVG.Element, {
// Distribute mask to svg element
maskWith: function (element) {
// use given mask or create a new one
var masker = element instanceof SVG.Mask ? element : this.parent().mask().add(element)
// apply mask
return this.attr('mask', 'url("#' + masker.id() + '")')
},
// Unmask element
unmask: function () {
return this.attr('mask', null)
},
masker: function () {
return this.reference('mask')
}
})
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