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Copy pathmain.js
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239 lines (213 loc) · 6.38 KB
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/**
* cookie consent banner and modify button rendering
*
*/
import { cookieName, getCookie, sAll, sEssential } from "./cookie.js"
import css from "./main.css"
const w = window
const d = document
const qs = (selector, node = d) => node.querySelector(selector)
const qsa = (selector, node = d) => node.querySelectorAll(selector)
const body = d.body
const sClassName = "className"
const sTextContent = "textContent"
const sInnerHTML = "innerHTML"
const settings = w.f3ccData || JSON.parse(qs("#f3cc-data")[sTextContent])
const injectedScripts = {}
const providerKey = "f3cc-embed-providers"
let mainElementRef
let banner
let modify
const crel = (tagName, attributes, children = []) => {
const dom = d.createElement(tagName)
for (const name in attributes) dom[name] = attributes[name]
dom.append(...children)
return dom
}
const renderBanner = () => {
if (banner) {
display(banner)
return
}
// The buttons are anchors without a href; they have no default action
// which would have to be prevented.
banner = crel("div", { [sClassName]: "f3cc f3cc-banner" }, [
crel("div", { [sClassName]: "f3cc-container" }, [
crel("div", { [sClassName]: "f3cc-content" }, [
crel("div", {
[sClassName]: "f3cc-title",
[sTextContent]: settings.heading,
}),
crel("div", {
[sClassName]: "f3cc-description",
[sInnerHTML]: settings.description,
}),
]),
crel("div", { [sClassName]: "f3cc-buttons" }, [
crel("a", {
[sClassName]: "f3cc-button accept",
[sTextContent]: settings.buttonAccept,
onclick: onAccept(true),
}),
crel("a", {
[sClassName]: "f3cc-button reject",
[sTextContent]: settings.buttonReject,
onclick: onAccept(false),
}),
]),
]),
])
mainElement().append(banner)
}
const renderModify = () => {
if (modify) {
display(modify)
return
}
const existing = qs(".f3cc-modify")
if (existing) {
// Remember the element so that later renderModify() calls short circuit
// above instead of adding the click listener again and again.
modify = existing
existing.addEventListener("click", (e) => {
e.preventDefault()
renderBanner()
})
return
}
const ppu = settings.ppu
const loc = w.location
if (
settings.buttonModify &&
(!ppu || ppu === `${loc.protocol}//${loc.host}${loc.pathname}`)
) {
modify = crel("a", {
[sClassName]: "f3cc-button modify",
[sTextContent]: settings.buttonModify,
onclick: () => {
display(modify, "none")
renderBanner()
},
})
mainElement().append(modify)
}
}
const setCookie = (value) => {
let cookie = `${cookieName}=${value};max-age=31536000;path=/;sameSite=Strict`
if (settings.domain) {
cookie += `;domain=${settings.domain}`
}
// biome-ignore lint/suspicious/noDocumentCookie: The recommended API isn't available everywhere
d.cookie = cookie
}
const isKnownCookieValue = () => {
const c = getCookie()
return sAll === c || sEssential === c
}
const getConsentToAll = () => {
return getCookie() === sAll
}
const display = (el, display = "") => {
if (el) el.style.display = display
}
const onAccept = (accept) => () => {
setCookie(accept ? sAll : sEssential)
display(banner, "none")
renderModify()
renderAcceptedEmbeds()
injectAcceptedScripts()
w.dispatchEvent(new Event(`f3cc_consent_${accept ? "granted" : "denied"}`))
}
const injectAcceptedScripts = () => {
if (getConsentToAll()) {
for (const cookie of settings.cookies) {
// Scripts are only injected once; accepting again after using the
// modify button would otherwise load and run them again.
if (!injectedScripts[cookie.name]) {
const node = (injectedScripts[cookie.name] = crel("div"))
node.dataset.name = cookie.name
mainElement().append(node)
setInnerHTML(node, cookie.script)
}
}
}
}
const mainElement = () => {
if (!mainElementRef) {
body.append((mainElementRef = crel("div", { [sClassName]: "f3cc" })))
}
return mainElementRef
}
// The local storage may be unavailable (or contain garbage); fall back to
// remembering the providers for the lifetime of the page in that case.
let providersFallback
const acceptedProviders = () => {
let providers = providersFallback
try {
providers = JSON.parse(localStorage.getItem(providerKey))
} catch (_e) {}
return Array.isArray(providers) ? providers : []
}
const setAcceptedProviders = (providers) => {
providersFallback = providers
try {
localStorage.setItem(providerKey, JSON.stringify(providers))
} catch (_e) {}
}
const renderAcceptedEmbeds = () => {
const providers = acceptedProviders()
for (const node of qsa(".f3cc-embed")) {
const template = qs("template", node)
const nodesProvider = node.dataset.provider
if (template && nodesProvider) {
if (getConsentToAll() || providers.includes(nodesProvider)) {
const clone = template.content.cloneNode(true)
// The .f3cc wrapper is optional: embeds may also be hand-written
// markup which only uses .f3cc-embed.
const target = node.closest(".f3cc") || node
target.replaceWith(clone)
}
}
}
}
const setInnerHTML = (elm, html) => {
elm[sInnerHTML] = html
for (const oldScriptEl of qsa("script", elm)) {
const newScriptEl = crel("script")
for (const attr of oldScriptEl.attributes) {
newScriptEl.setAttribute(attr.name, attr.value)
}
newScriptEl[sTextContent] = oldScriptEl[sTextContent]
oldScriptEl.replaceWith(newScriptEl)
}
}
/*
const initEmbedMutationObserver = () => {
const observer = new MutationObserver(renderAcceptedEmbeds)
observer.observe(body, { subtree: true, childList: true })
}
initEmbedMutationObserver()
*/
d.head.append(crel("style", { [sTextContent]: css }))
w.f3ccRenderEmbeds = renderAcceptedEmbeds
body.addEventListener("click", (e) => {
const button = e.target.closest(".f3cc-button")
const node = button?.closest(".f3cc-embed")
if (button && node) {
e.preventDefault()
const providers = acceptedProviders()
const provider = node.dataset.provider
if (!providers.includes(provider)) {
providers.push(provider)
setAcceptedProviders(providers)
}
renderAcceptedEmbeds()
}
})
injectAcceptedScripts()
renderAcceptedEmbeds()
if (!isKnownCookieValue()) {
renderBanner()
} else {
renderModify()
}