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import {makeInstance, adopt} from './adopter.js'
import {map} from './utils.js'
import {registerMethods} from './methods.js'
import Element from './Element.js'
import {ns} from './namespaces.js'
export default class Parent extends Element {
// Returns all child elements
children () {
return map(this.node.children, function (node) {
return adopt(node)
})
}
// Add given element at a position
add (element, i) {
element = makeInstance(element)
if (i == null) {
this.node.appendChild(element.node)
} else if (element.node !== this.node.childNodes[i]) {
this.node.insertBefore(element.node, this.node.childNodes[i])
}
return this
}
// Basically does the same as `add()` but returns the added element instead
put (element, i) {
this.add(element, i)
return element.instance || element
}
// Checks if the given element is a child
has (element) {
return this.index(element) >= 0
}
// Gets index of given element
index (element) {
return [].slice.call(this.node.childNodes).indexOf(element.node)
}
// Get a element at the given index
get (i) {
return adopt(this.node.childNodes[i])
}
// Get first child
first () {
return adopt(this.node.firstChild)
}
// Get the last child
last () {
return adopt(this.node.lastChild)
}
// Iterates over all children and invokes a given block
each (block, deep) {
var children = this.children()
var i, il
for (i = 0, il = children.length; i < il; i++) {
if (children[i] instanceof Element) {
block.apply(children[i], [i, children])
}
if (deep && (children[i] instanceof Parent)) {
children[i].each(block, deep)
}
}
return this
}
// Remove a given child
removeElement (element) {
this.node.removeChild(element.node)
return this
}
// Remove all elements in this container
clear () {
// remove children
while (this.node.hasChildNodes()) {
this.node.removeChild(this.node.lastChild)
}
// remove defs reference
delete this._defs
return this
}
// Import raw svg
svg (svg) {
var well, len
// act as a setter if svg is given
if (svg) {
// create temporary holder
well = document.createElementNS(ns, 'svg')
// dump raw svg
well.innerHTML = svg
// transplant nodes
for (len = well.children.length; len--;) {
this.node.appendChild(well.firstElementChild)
}
// otherwise act as a getter
} else {
// write svgjs data to the dom
this.writeDataToDom()
return this.node.outerHTML
}
return this
}
// write svgjs data to the dom
writeDataToDom () {
// dump variables recursively
this.each(function () {
this.writeDataToDom()
})
// remove previously set data
this.node.removeAttribute('svgjs:data')
if (Object.keys(this.dom).length) {
this.node.setAttribute('svgjs:data', JSON.stringify(this.dom)) // see #428
}
return this
}
flatten (parent) {
this.each(function () {
if (this instanceof Parent) return this.flatten(parent).ungroup(parent)
return this.toParent(parent)
})
// we need this so that Doc does not get removed
this.node.firstElementChild || this.remove()
return this
}
ungroup (parent) {
parent = parent || this.parent()
this.each(function () {
return this.toParent(parent)
})
this.remove()
return this
}
}
// registerMethods('Container', {
// children, add, put, has, index, get, first, last, each,
// removeElement, clear, svg, writeDataToDom, flatten, ungroup
// })
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