Sync Foliate progress state

static/foliate-reader/reader.js

@@ -310,6 +310,13 @@ window.addEventListener('message', event => {
     if (event.source !== window.parent || event.data?.type !== 'voice-foliate-goto') return
     if (event.data.href) globalThis.reader?.view?.goTo(event.data.href).catch(e => console.error(e))
 })
+window.addEventListener('message', event => {
+    if (event.source !== window.parent) return
+    const type = event.data?.type
+    if (type === 'voice-foliate-seek') globalThis.reader?.view?.goToFraction(Number(event.data.percent) / 100)
+    else if (type === 'voice-foliate-prev') globalThis.reader?.view?.prev()
+    else if (type === 'voice-foliate-next') globalThis.reader?.view?.next()
+})
 window.addEventListener('message', event => {
     if (event.source !== window.parent || event.data?.type !== 'voice-foliate-layout') return
     const renderer = globalThis.reader?.view?.renderer