chore: tweak hashchange emitting a bit

src/client/app/router.ts

@@ -64,16 +64,11 @@ export function createRouter(
  }
 
  async function go(href: string = inBrowser ? location.href : '/') {
- const currentHash = inBrowser ? location.hash : ''
  href = normalizeHref(href)
  if ((await router.onBeforeRouteChange?.(href)) === false) return
  updateHistory(href)
  await loadPage(href)
  await router.onAfterRouteChanged?.(href)
- // do after the route is changed so location.hash in theme code is the new hash
- if (new URL(href, fakeHost).hash !== currentHash) {
- window.dispatchEvent(new Event('hashchange'))
- }
  }
 
  let latestPendingPath: string | null = null
@@ -212,7 +207,7 @@ export function createRouter(
  // use smooth scroll when clicking on header anchor links
  scrollTo(link, hash, link.classList.contains('header-anchor'))
  } else {
- updateHistory(href)
+ updateHistory(href, false) // already emitted hashchange above
  window.scrollTo(0, 0)
  }
  } else {
@@ -305,11 +300,15 @@ function shouldHotReload(payload: PageDataPayload): boolean {
  return payloadPath === locationPath
 }
 
-function updateHistory(href: string) {
+function updateHistory(href: string, emitHashChange = true) {
  if (inBrowser && normalizeHref(href) !== normalizeHref(location.href)) {
+ const currentHash = location.hash
  // save scroll position before changing url
  history.replaceState({ scrollPosition: window.scrollY }, document.title)
  history.pushState(null, '', href)
+ if (emitHashChange && new URL(href, fakeHost).hash !== currentHash) {
+ window.dispatchEvent(new Event('hashchange'))
+ }
  }
 }