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import { addMethodNames } from './methods.js'
import { capitalize } from './utils.js'
import { ns } from '../modules/core/namespaces.js'
import { globals } from '../utils/window.js'
import Base from '../types/Base.js'
const elements = {}
export const root = '___SYMBOL___ROOT___'
// Method for element creation
export function makeNode (name) {
// create element
return globals.document.createElementNS(ns, name)
}
export function makeInstance (element) {
if (element instanceof Base) return element
if (typeof element === 'object') {
return adopter(element)
}
if (element == null) {
return new elements[root]()
}
if (typeof element === 'string' && element.charAt(0) !== '<') {
return adopter(globals.document.querySelector(element))
}
var node = makeNode('svg')
node.innerHTML = element
// We can use firstChild here because we know,
// that the first char is < and thus an element
element = adopter(node.firstChild)
return element
}
export function nodeOrNew (name, node) {
return node instanceof globals.window.Node ? node : makeNode(name)
}
// Adopt existing svg elements
export function adopt (node) {
// check for presence of node
if (!node) return null
// make sure a node isn't already adopted
if (node.instance instanceof Base) return node.instance
// initialize variables
var className = capitalize(node.nodeName)
// Make sure that gradients are adopted correctly
if (className === 'LinearGradient' || className === 'RadialGradient') {
className = 'Gradient'
// Fallback to Dom if element is not known
} else if (!elements[className]) {
className = 'Dom'
}
return new elements[className](node)
}
let adopter = adopt
export function mockAdopt(mock = adopt) {
adopter = mock
}
export function register (element, name = element.name, asRoot = false) {
elements[name] = element
if (asRoot) elements[root] = element
addMethodNames(Object.keys(element.prototype))
return element
}
export function getClass (name) {
return elements[name]
}
// Element id sequence
let did = 1000
// Get next named element id
export function eid (name) {
return 'Svgjs' + capitalize(name) + (did++)
}
// Deep new id assignment
export function assignNewId (node) {
// do the same for SVG child nodes as well
for (var i = node.children.length - 1; i >= 0; i--) {
assignNewId(node.children[i])
}
if (node.id) {
return adopt(node).id(eid(node.nodeName))
}
return adopt(node)
}
// Method for extending objects
export function extend (modules, methods, attrCheck) {
var key, i
modules = Array.isArray(modules) ? modules : [modules]
for (i = modules.length - 1; i >= 0; i--) {
for (key in methods) {
let method = methods[key]
if (attrCheck) {
method = wrapWithAttrCheck(methods[key])
}
modules[i].prototype[key] = method
}
}
}
// export function extendWithAttrCheck (...args) {
// extend(...args, true)
// }
export function wrapWithAttrCheck (fn) {
return function (...args) {
let o = args[args.length - 1]
if (o && o.constructor === Object && !(o instanceof Array)) {
return fn.apply(this, args.slice(0, -1)).attr(o)
} else {
return fn.apply(this, args)
}
}
}
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