56 lines
1.8 KiB
JavaScript
56 lines
1.8 KiB
JavaScript
/*
|
|
A functional HTML generation library.
|
|
|
|
Example:
|
|
html.label(
|
|
html.span("Delete everything", {class: ["warning", "important"]}),
|
|
html.button("Click", {onClick: e => document.body.innerHTML=""}),
|
|
)
|
|
or
|
|
html.ul([1, 2, 3, 4, 5].map(x => html.li(x)), {class: "numbers"})
|
|
*/
|
|
|
|
const parseAttribute = (attribute) => {
|
|
if (typeof attribute == "string" || typeof attribute == "number")
|
|
return attribute
|
|
else if ("join" in attribute)
|
|
return attribute.join(" ")
|
|
else
|
|
return JSON.stringify(attribute)
|
|
}
|
|
|
|
const parseArgs = (element, ...args) => {
|
|
if (element.content) element = element.content
|
|
for (let arg of args)
|
|
if (typeof arg == "string" || typeof arg == "number")
|
|
element.appendChild(document.createTextNode(arg))
|
|
else if ("nodeName" in arg)
|
|
element.appendChild(arg)
|
|
else if ("length" in arg)
|
|
parseArgs(element, ...arg)
|
|
else
|
|
for (let key in arg)
|
|
if (key == "shadowRoot")
|
|
parseArgs((element.shadowRoot || element.attachShadow({mode: "open"})), arg[key])
|
|
else if (typeof arg[key] == "function")
|
|
element.addEventListener(key.replace(/^on[A-Z]/, x => x.charAt(x.length-1).toLowerCase()), e => e.preventDefault() || arg[key](e))
|
|
else
|
|
element.setAttribute(key, parseAttribute(arg[key]))
|
|
}
|
|
|
|
const node = (name, args, options) => {
|
|
let element
|
|
if (options.nameFilter) name = options.nameFilter(name)
|
|
if (options.xmlns)
|
|
element = document.createElementNS(options.xmlns, name)
|
|
else
|
|
element = document.createElement(name)
|
|
parseArgs(element, args)
|
|
return element
|
|
}
|
|
|
|
const nameSpacedProxy = (options={}) => new Proxy(Window, { get: (target, prop, receiver) => { return (...args) => node(prop, args, options) }})
|
|
|
|
export const html = nameSpacedProxy({nameFilter: name => name.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase()})
|
|
export const svg = nameSpacedProxy({xmlns: "http://www.w3.org/2000/svg"})
|