On touch, a tap on a post opens its thread

On a phone the only way into a post's thread was a small Expand button (and now an entry in More), while a tap on the
post pinned it to a globe that is usually hidden there, outlining the card. Where the pointer can't hover, a tap on a
post that isn't on its links, controls or menus and doesn't end a text selection opens its thread through the card's
own thread link (main.js, data-thread on the card); cards are pinned to the globe with a mouse only. The globe's corner
stats have 12px text on touch. Phone flow: a tap in a post's margin opens its thread and pins nothing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

wwwroot/js/globe.js

@@ -21,6 +21,8 @@ const vendor = new URL("../vendor/globe/", import.meta.url).href
 const textures = { day: vendor + "earth-blue-marble.jpg", night: vendor + "earth-night.jpg" }
 const countriesUrl = vendor + "countries.json"
 const reducedMotion = matchMedia("(prefers-reduced-motion: reduce)")
+// a touch screen: a tap on a card opens its thread there (main.js), so cards are pinned with a mouse only
+const canHover = matchMedia("(hover: hover)")
 
 let loading = null
 let state = null
@@ -597,10 +599,10 @@ function watchCards() {
 			hover(null)
 	})
 	// a click on a card (not on its links or controls) pins it: the globe keeps its moment and place until it is
-	// clicked again or another card is pinned
+	// clicked again or another card is pinned. With a mouse only: on a touch screen the tap opens the post's thread
 	listen(scroller, "click", event => {
 		const card = event.target.closest?.("[data-post-id]")
-		if (!card || event.target.closest("a, button, input, textarea, select, label, summary, video, audio, [role=button]"))
+		if (!canHover.matches || !card || event.target.closest("a, button, input, textarea, select, label, summary, video, audio, [role=button]"))
 			return
 		const key = card.dataset.postId
 		scroller.querySelectorAll("[data-globe-pinned]").forEach(c => c.removeAttribute("data-globe-pinned"))

wwwroot/main.js

@@ -123,6 +123,23 @@ window.clearAppBadge = () => {
 		window.logFromJs(e.message, "clearAppBadge")
 	}
 }
+// On a touch screen a tap on a post (not on its links, controls or menus, and not ending a text selection) opens its
+// thread, through the card's own thread link (Content.razor, data-thread-link), which Blazor's router takes.
+document.addEventListener("click", event => {
+	try {
+		if (window.matchMedia("(hover: hover)").matches || !(event.target instanceof Element))
+			return
+		const card = event.target.closest("[data-thread]")
+		if (!card || event.target.closest("a, button, input, textarea, select, label, summary, video, audio, [role=button], .dropdown, .modal, [data-sheet]"))
+			return
+		if (!window.getSelection()?.isCollapsed)
+			return
+		card.querySelector("a[data-thread-link]")?.click()
+	} catch (e) {
+		console.error(e)
+		window.logFromJs(e.message, "openThread")
+	}
+})
 window.canHover = () => {
 	try {
 		return window.matchMedia("(hover: hover)").matches