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import { nodeOrNew, register, wrapWithAttrCheck } from '../utils/adopter.js'
import { registerMethods } from '../utils/methods.js'
import Box from '../types/Box.js'
import Container from './Container.js'
import baseFind from '../modules/core/selector.js'
export default class Pattern extends Container {
// Initialize node
constructor (node, attrs = node) {
super(nodeOrNew('pattern', node), attrs)
}
// Return the fill id
url () {
return 'url(#' + this.id() + ')'
}
// Update pattern by rebuilding
update (block) {
// remove content
this.clear()
// invoke passed block
if (typeof block === 'function') {
block.call(this, this)
}
return this
}
// Alias string convertion to fill
toString () {
return this.url()
}
// custom attr to handle transform
attr (a, b, c) {
if (a === 'transform') a = 'patternTransform'
return super.attr(a, b, c)
}
targets () {
return baseFind('svg [fill*="' + this.id() + '"]')
}
bbox () {
return new Box()
}
}
registerMethods({
Container: {
// Create pattern element in defs
pattern (...args) {
return this.defs().pattern(...args)
}
},
Defs: {
pattern: wrapWithAttrCheck(function (width, height, block) {
return this.put(new Pattern()).update(block).attr({
x: 0,
y: 0,
width: width,
height: height,
patternUnits: 'userSpaceOnUse'
})
})
}
})
register(Pattern, 'Pattern')
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