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reconciler.go
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reconciler.go
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package vn
import (
vnd "github.com/mfrachet/go-vdom-wasm/dom"
vnh "github.com/mfrachet/go-vdom-wasm/helpers"
)
func Append(parent vnd.DomNode, child vnd.DomNode) {
parent.AppendChild(child)
}
func Remove(domNode vnd.DomNode) {
domNode.Remove()
}
func CreateText(parent vnd.DomNode, virtualNode *TextNode) vnd.DomNode {
return parent.CreateTextNode(virtualNode.GetValue())
}
func CreateInstance(parent vnd.DomNode, vnode Node) vnd.DomNode {
domNode := parent.CreateElement(vnode.GetTagName())
attrs := vnode.GetAttrs()
for attr, attrValue := range *attrs.Props {
domNode.SetAttribute(attr, attrValue)
}
for eventName, handler := range *attrs.Events {
domNode.AddEventListener(eventName, handler)
}
return domNode
}
func ComputeChildren(parent vnd.DomNode, vnode Node) {
textNode := vnode.GetText()
if vnh.NotNil(textNode) {
textElement := CreateText(parent, textNode)
textNode.SetElement(textElement)
Append(parent, textElement)
} else {
for _, el := range vnode.GetChildren() {
childElement := CreateIfNotExist(parent, el)
parent.AppendChild(childElement)
}
}
}
func CreateIfNotExist(parent vnd.DomNode, vnode Node) vnd.DomNode {
if vnode.HasElement() {
return *vnode.GetElement()
}
newElement := CreateInstance(parent, vnode)
vnode.SetElement(newElement)
ComputeChildren(newElement, vnode)
return newElement
}