feat: Handle internal links to headings within notes

Author: laudep

src/lib/platform.ts

@@ -3,11 +3,27 @@ import { openExternal } from './electronOnly'
 
 export const appIsElectron = isElectron()
 
+const isInternalLink = (link: string) => link[0] === '#'
+
+const openInternalLink = (link: string) => {
+  const extractedId = link.slice(1)
+  const targetId = `user-content-${extractedId}`
+  const targetElement = window.document.getElementById(targetId)
+  if (targetElement != null) {
+    targetElement.scrollIntoView()
+  }
+}
+
 export const openNew = (url: string) => {
   if (url.length === 0) {
     return
   }
 
+  if (isInternalLink(url)) {
+    openInternalLink(url)
+    return
+  }
+
   if (appIsElectron) {
     openExternal(url)
   } else {