113 lines
3.9 KiB
JavaScript
113 lines
3.9 KiB
JavaScript
(function () {
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'use strict';
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// Full page reload for these form actions — logout intentionally kills the session.
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const FULL_RELOAD_ACTIONS = ['/logout'];
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function isSameOrigin(href) {
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try { return new URL(href, location.href).origin === location.origin; }
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catch { return false; }
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}
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// Re-execute script tags injected via innerHTML (browser skips them otherwise).
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function runScripts(container) {
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container.querySelectorAll('script').forEach((old) => {
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const s = document.createElement('script');
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[...old.attributes].forEach((a) => s.setAttribute(a.name, a.value));
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s.textContent = old.textContent;
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old.replaceWith(s);
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});
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}
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// Swap #page-shell content, update title, and optionally push history.
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function applyPage(doc, finalUrl, pushState) {
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const newShell = doc.getElementById('page-shell');
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const curShell = document.getElementById('page-shell');
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if (newShell && curShell) {
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curShell.innerHTML = newShell.innerHTML;
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runScripts(curShell);
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}
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document.title = doc.title;
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if (pushState) history.pushState({ btiNav: true }, doc.title, finalUrl);
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window.scrollTo(0, 0);
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window.dispatchEvent(new CustomEvent('briTunes:navigate'));
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}
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async function navigate(url, pushState) {
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if (pushState === undefined) pushState = true;
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try {
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const res = await fetch(url);
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if (!isSameOrigin(res.url)) { location.href = url; return; }
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const html = await res.text();
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applyPage(new DOMParser().parseFromString(html, 'text/html'), res.url, pushState);
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} catch {
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location.href = url;
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}
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}
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// Build the right body type for fetch POST:
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// - Forms with actual file selections → multipart FormData (multer handles it)
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// - All other forms → URL-encoded (express.urlencoded handles it)
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function buildBody(form) {
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const fd = new FormData(form);
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const hasFile = [...fd.values()].some(v => v instanceof File && v.size > 0);
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if (hasFile) return fd;
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const params = new URLSearchParams();
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for (const [k, v] of fd.entries()) {
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if (typeof v === 'string') params.append(k, v);
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}
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return params;
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}
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// --- Intercept link clicks ---
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document.addEventListener('click', (e) => {
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if (e.defaultPrevented || e.metaKey || e.ctrlKey || e.shiftKey || e.altKey) return;
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const a = e.target.closest('a[href]');
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if (!a) return;
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if (a.target && a.target !== '_self') return;
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if (a.hasAttribute('download')) return;
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const raw = a.getAttribute('href');
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if (!raw || raw.startsWith('#') || raw.startsWith('mailto:') || raw.startsWith('tel:')) return;
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if (!isSameOrigin(a.href)) return;
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e.preventDefault();
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navigate(a.href);
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});
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// --- Intercept form submissions ---
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document.addEventListener('submit', (e) => {
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const form = e.target;
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if (!(form instanceof HTMLFormElement)) return;
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if (!isSameOrigin(form.action)) return;
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const action = new URL(form.action, location.href).pathname;
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if (FULL_RELOAD_ACTIONS.some(ex => action.startsWith(ex))) return;
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const method = (form.method || 'GET').toUpperCase();
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if (method === 'GET') {
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// Rebuild URL with form data then navigate.
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e.preventDefault();
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const url = new URL(form.action, location.href);
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for (const [k, v] of new FormData(form).entries()) {
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if (typeof v === 'string') url.searchParams.set(k, v);
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}
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navigate(url.toString());
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return;
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}
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if (method === 'POST') {
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e.preventDefault();
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fetch(form.action, { method: 'POST', body: buildBody(form) })
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.then(async (res) => {
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if (!isSameOrigin(res.url)) { location.href = res.url; return; }
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const html = await res.text();
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applyPage(new DOMParser().parseFromString(html, 'text/html'), res.url, true);
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})
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.catch(() => form.submit());
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}
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});
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// --- Back / forward ---
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window.addEventListener('popstate', () => navigate(location.href, false));
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})();
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