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219 | ;; Room view: header + note wall + composer. No frameworks; the note list is a
;; full re-render coalesced via requestAnimationFrame (plenty at demo scale — go
;; incremental only when your app's state earns it). The DOM is built as NODES
;; through __NAME__.app.dom — no `innerHTML` anywhere, so every remote string is
;; a text node and there is no escape function to forget to call
;; (test/source-hygiene.test.mjs holds that as an absolute).
;;
;; Only this namespace touches the document; room.cljs wires the hooks.
(ns __NAME__.app.ui
(:require [__NAME__.app.dom :as d]
[__NAME__.app.store :as store]
[__NAME__.i18n :as i18n :refer (t)]
[ardegazu.rooms.js :as j]
[shadow.cljs.modern :refer (defclass)]))
(declare render render-peers copy-invite! ask-name)
;; hooks: js obj (post rename inviteURL roomLabel goLobby)
(defclass UI
(constructor [this root store hooks]
(unchecked-set this "_store" store)
(unchecked-set this "_hooks" hooks)
(unchecked-set this "_peers" (js/Map.))
(unchecked-set this "_baseTitle" (.-title js/document))
(unchecked-set this "_raf" 0)
(let [app (d/el "div" "app")
header (d/el "header" "top")
btn-lobby (d/btn "icon-btn" "⌂" (fn [] ((unchecked-get hooks "goLobby"))))
room-name (d/txt "div" "room-name" ((unchecked-get hooks "roomLabel")))
dot (d/el "span" "dot")
peers-el (d/el "span" "peers")
btn-name (d/btn "icon-btn" "✎"
(fn []
(-> (ask-name this (store/my-name store))
(.then (fn [name] ((unchecked-get hooks "rename") name))))))
btn-invite (d/btn "icon-btn" "🔗" (fn [] (copy-invite! this)))
msgs (d/el "main" "msgs")
composer (d/el "form" "composer")
input (d/input nil (t "notes.ph") 8000)
send-btn (d/txt "button" "primary" (t "notes.send"))]
(set! (.-id btn-lobby) "btn-lobby")
(set! (.-id dot) "net-dot")
(set! (.-id btn-name) "btn-name")
(set! (.-id btn-invite) "btn-invite")
(set! (.-id input) "note-in")
(set! (.-id send-btn) "note-send")
(.setAttribute input "enterkeyhint" "send")
;; translated chrome (the room view is built here, not in index.html)
(set! (.-title btn-lobby) (t "top.rooms.title"))
(set! (.-title btn-name) (t "top.name.title"))
(set! (.-title btn-invite) (t "top.invite.title"))
(d/add! header btn-lobby room-name dot peers-el btn-name btn-invite)
(d/add! composer input send-btn)
(d/add! app header msgs composer)
(.appendChild ^js root app)
(unchecked-set this "_app" app)
(unchecked-set this "_peersEl" peers-el)
(unchecked-set this "_dotEl" dot)
(unchecked-set this "_msgsEl" msgs)
(.addEventListener composer "submit"
(fn [^js e]
(.preventDefault e)
(when (j/truthy? (.trim (.-value input)))
((unchecked-get hooks "post") (.-value input)))
(set! (.-value input) "")
(.focus input)
js/undefined))
(.addEventListener js/document "visibilitychange"
(fn []
(when (identical? "visible" (.-visibilityState js/document))
(set! (.-title js/document) (unchecked-get this "_baseTitle")))
js/undefined))
(render-peers this)
(render this))))
;; ---- notes -----------------------------------------------------------------
(defn- render-now [self]
(let [el ^js (unchecked-get self "_msgsEl")
at-bottom (< (- (.-scrollHeight el) (.-scrollTop el) (.-clientHeight el)) 60)
notes ^js (unchecked-get (unchecked-get self "_store") "notes")]
(d/clear! el)
(if (zero? (.-length notes))
(d/add! el
(d/add! (d/el "div" "empty")
(d/txt "div" "empty-lock" "🔒")
(d/txt "strong" nil (t "empty.title"))
(d/txt "p" nil (t "empty.body" {"host" (.-host js/location)}))
(d/btn "ghost" (t "empty.invite") (fn [] (copy-invite! self)))))
(do
(doseq [n (array-seq notes)]
(d/add! el
(d/add! (d/el "div" (if (j/truthy? (unchecked-get n "mine")) "note mine" "note"))
(d/add! (d/el "div" "note-head")
(d/txt "span" "note-name" (unchecked-get n "name"))
(d/txt "span" "note-time"
(i18n/fmt-time (js/Date. (unchecked-get n "ts"))
(j/ordered "hour" "2-digit" "minute" "2-digit"))))
(d/txt "div" "note-text" (unchecked-get n "text")))))
(when at-bottom (set! (.-scrollTop el) (.-scrollHeight el))))))
js/undefined)
(defn render
"Coalesced full re-render of the note wall."
[self]
;; `if (this.#raf) return` — JS truthiness on a raf handle (0 = none)
(when-not (j/truthy? (unchecked-get self "_raf"))
(unchecked-set self "_raf"
(js/requestAnimationFrame (fn []
(unchecked-set self "_raf" 0)
(render-now self)))))
js/undefined)
(defn notify-incoming
"Live foreign note arrived (the store gates out replay + own echoes)."
[self _note]
(when (identical? "hidden" (.-visibilityState js/document))
(set! (.-title js/document) (str "• " (unchecked-get self "_baseTitle"))))
js/undefined)
;; ---- roster / connectivity -------------------------------------------------
(defn set-peer [self peer state name]
(let [peers ^js (unchecked-get self "_peers")
rec (.get peers peer)]
(.set peers peer (j/ordered "state" state
"name" (j/nn name (when (j/truthy? rec) (unchecked-get rec "name")))))
(render-peers self))
js/undefined)
(defn remove-peer [self peer]
(.delete ^js (unchecked-get self "_peers") peer)
(render-peers self)
js/undefined)
(defn set-peer-name [self peer name]
(let [rec (.get ^js (unchecked-get self "_peers") peer)]
(when (j/truthy? rec) (unchecked-set rec "name" name)))
(render-peers self)
js/undefined)
(defn set-signaling [self up]
(.toggle (.-classList ^js (unchecked-get self "_dotEl")) "on" (j/truthy? up))
js/undefined)
(defn- render-peers [self]
(let [peers ^js (unchecked-get self "_peers")
el ^js (unchecked-get self "_peersEl")
n (.-size peers)]
(d/set-text! el (if (zero? n) (t "peers.just-you") (t "peers.here" {"n" (inc n)})))
;; hover roster on desktop: names + transport states, nothing sensitive
(set! (.-title el)
(.join (.map (js/Array.from (.values peers))
(fn [p] (str (j/nn (unchecked-get p "name") "?") " · " (unchecked-get p "state"))))
"\n")))
js/undefined)
;; ---- overlays --------------------------------------------------------------
(defn ask-name
"Name prompt (first join) / rename (pre-filled). Resolves non-empty."
[self initial]
(js/Promise.
(fn [resolve _reject]
(let [overlay (d/el "div" "overlay")
form (d/el "form" "modal")
input (d/input nil (t "join.name.ph") 40)]
(.setAttribute input "enterkeyhint" "go")
(when (j/truthy? initial) (set! (.-value input) initial))
(d/add! form
(d/txt "h2" nil ((unchecked-get (unchecked-get self "_hooks") "roomLabel")))
(d/txt "p" nil (t "join.sub"))
input
(d/txt "button" "primary" (t "join.btn")))
(d/add! overlay form)
(.addEventListener form "submit"
(fn [^js e]
(.preventDefault e)
(let [name (.trim (.-value input))]
(when (j/truthy? name)
(.remove overlay)
(resolve name)))
js/undefined))
(.appendChild ^js (unchecked-get self "_app") overlay)
(js/setTimeout (fn [] (.focus input)) 30)))))
(defn toast [self msg]
(let [el (d/txt "div" "toast" msg)]
(.appendChild ^js (unchecked-get self "_app") el)
(js/setTimeout (fn [] (.remove el)) 2600))
js/undefined)
(defn- copy-invite! [self]
(let [url ((unchecked-get (unchecked-get self "_hooks") "inviteURL"))]
(-> (.writeText (.-clipboard js/navigator) url)
(.then (fn [_] (toast self (t "toast.invite-copied")) js/undefined))
(.catch
(fn [_]
;; no clipboard permission (or non-secure context) — show it for
;; manual copy
(let [overlay (d/el "div" "overlay")
out (d/el "input" "copy-out")]
(set! (.-type out) "text")
(set! (.-readOnly out) true)
(set! (.-value out) url)
(d/add! overlay
(d/add! (d/el "div" "modal")
(d/txt "p" nil (t "copy.manual"))
out
(d/btn "ghost" (t "sheet.close") (fn [] (.remove overlay)))))
(.appendChild ^js (unchecked-get self "_app") overlay)
(.focus out)
(.select out))
js/undefined)))))
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