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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.attr('id') + '")')
}
// Unmask element
, unmask: function() {
return this.attr('mask', null)
}
, masker: function() {
return this.reference('mask')
}
})
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