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import { nodeOrNew, register, wrapWithAttrCheck } from '../utils/adopter.js'
import { registerMethods } from '../utils/methods.js'
import { xlink } from '../modules/core/namespaces.js'
import Path from './Path.js'
import PathArray from '../types/PathArray.js'
import Text from './Text.js'
import baseFind from '../modules/core/selector.js'
export default class TextPath extends Text {
// Initialize node
constructor (node, attrs = node) {
super(nodeOrNew('textPath', node), attrs)
}
// return the array of the path track element
array () {
var track = this.track()
return track ? track.array() : null
}
// Plot path if any
plot (d) {
var track = this.track()
var pathArray = null
if (track) {
pathArray = track.plot(d)
}
return (d == null) ? pathArray : this
}
// Get the path element
track () {
return this.reference('href')
}
}
registerMethods({
Container: {
textPath: wrapWithAttrCheck(function (text, path) {
// Convert text to instance if needed
if (!(text instanceof Text)) {
text = this.text(text)
}
return text.path(path)
})
},
Text: {
// Create path for text to run on
path: wrapWithAttrCheck(function (track, importNodes = true) {
var textPath = new TextPath()
// if track is a path, reuse it
if (!(track instanceof Path)) {
// create path element
track = this.defs().path(track)
}
// link textPath to path and add content
textPath.attr('href', '#' + track, xlink)
// Transplant all nodes from text to textPath
let node
if (importNodes) {
while ((node = this.node.firstChild)) {
textPath.node.appendChild(node)
}
}
// add textPath element as child node and return textPath
return this.put(textPath)
}),
// Get the textPath children
textPath () {
return this.findOne('textPath')
}
},
Path: {
// creates a textPath from this path
text: wrapWithAttrCheck(function (text) {
// Convert text to instance if needed
if (!(text instanceof Text)) {
text = new Text().addTo(this.parent()).text(text)
}
// Create textPath from text and path and return
return text.path(this)
}),
targets () {
return baseFind('svg textPath').filter((node) => {
return node.attr('href').includes(this.id())
})
// Does not work in IE11. Use when IE support is dropped
// return baseFind('svg textPath[*|href*="' + this.id() + '"]')
}
}
})
TextPath.prototype.MorphArray = PathArray
register(TextPath, 'TextPath')
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