From 842e119f1d44364309de6492ee70bd4acac00013 Mon Sep 17 00:00:00 2001
From: Wind-Explorer <windexplorer@outlook.com>
Date: Mon, 24 Aug 2026 00:28:38 +0800
Subject: [PATCH] click to show lil info panel

---
 src/lib/components/popover.svelte             | 122 ++++++++++++++++++
 src/routes/scene/+page.svelte                 |  73 ++++++++---
 .../scene/scene-user-popover-content.svelte   |  64 +++++++++
 3 files changed, 244 insertions(+), 15 deletions(-)
 create mode 100644 src/lib/components/popover.svelte
 create mode 100644 src/routes/scene/scene-user-popover-content.svelte

diff --git a/src/lib/components/popover.svelte b/src/lib/components/popover.svelte
new file mode 100644
index 0000000..938f04f
--- /dev/null
+++ b/src/lib/components/popover.svelte
@@ -0,0 +1,122 @@
+<script lang="ts">
+  import { tick } from "svelte";
+  import { fly } from "svelte/transition";
+  import type { Snippet } from "svelte";
+
+  type Props = {
+    id: string;
+    label: string;
+    labelledBy: string;
+    open: boolean;
+    onOpenChange: (open: boolean, trigger: HTMLButtonElement) => void;
+    trigger: Snippet;
+    children: Snippet;
+    class?: string;
+    triggerClass?: string;
+    panelClass?: string;
+    panelStyle?: string;
+  };
+
+  let {
+    id,
+    label,
+    labelledBy,
+    open,
+    onOpenChange,
+    trigger,
+    children,
+    class: className = "",
+    triggerClass = "",
+    panelClass = "",
+    panelStyle,
+  }: Props = $props();
+
+  let root = $state<HTMLDivElement>();
+  let panel = $state<HTMLDivElement>();
+  let triggerButton = $state<HTMLButtonElement>();
+
+  $effect(() => {
+    if (open) {
+      tick().then(() => {
+        if (open) panel?.focus({ preventScroll: true });
+      });
+    }
+  });
+
+  function setOpen(nextOpen: boolean) {
+    if (triggerButton) onOpenChange(nextOpen, triggerButton);
+  }
+
+  function closeOnEscape(event: KeyboardEvent) {
+    if (open && event.key === "Escape") {
+      setOpen(false);
+      triggerButton?.focus({ preventScroll: true });
+    }
+  }
+
+  function closeOnOutsidePointer(event: PointerEvent) {
+    if (
+      open &&
+      root &&
+      event.target instanceof Node &&
+      !root.contains(event.target)
+    ) {
+      setOpen(false);
+    }
+  }
+
+  function closeOnFocusOut(event: FocusEvent) {
+    if (
+      open &&
+      root &&
+      (!(event.relatedTarget instanceof Node) ||
+        !root.contains(event.relatedTarget))
+    ) {
+      setOpen(false);
+    }
+  }
+
+  function closeOnWindowBlur() {
+    if (open) setOpen(false);
+  }
+</script>
+
+<svelte:window
+  onkeydown={closeOnEscape}
+  onpointerdown={closeOnOutsidePointer}
+  onblur={closeOnWindowBlur}
+/>
+
+<div
+  bind:this={root}
+  class={`relative grid place-items-center ${className}`}
+  onfocusout={closeOnFocusOut}
+>
+  {#if open}
+    <div
+      bind:this={panel}
+      {id}
+      class={`absolute z-20 focus:outline-none ${panelClass}`}
+      style={panelStyle}
+      role="dialog"
+      aria-labelledby={labelledBy}
+      tabindex="-1"
+    >
+      <div transition:fly={{ y: 12, duration: 180 }}>
+        {@render children()}
+      </div>
+    </div>
+  {/if}
+
+  <button
+    bind:this={triggerButton}
+    type="button"
+    class={`grid cursor-pointer place-items-center border-0 bg-transparent p-0 transition-transform duration-150 hover:-translate-y-0.5 focus-visible:-translate-y-0.5 ${triggerClass}`}
+    aria-label={label}
+    aria-expanded={open}
+    aria-controls={id}
+    onclick={() => setOpen(!open)}
+  >
+    {@render trigger()}
+  </button>
+</div>
diff --git a/src/routes/scene/+page.svelte b/src/routes/scene/+page.svelte
index 56b3cc2..fefcc9c 100644
--- a/src/routes/scene/+page.svelte
+++ b/src/routes/scene/+page.svelte
@@ -1,33 +1,76 @@
 <script lang="ts">
   import { onMount } from "svelte";
-  import { startHitboxSync } from "./hitboxes";
+  import Popover from "$lib/components/popover.svelte";
   import { liveMetadata } from "$lib/listeners/live-metadata";
+  import SceneUserPopoverContent from "./scene-user-popover-content.svelte";
+  import { startHitboxSync } from "./hitboxes";
+
+  let selectedUserId: string | null = null;
+  let selectedUserX: number | null = null;
 
   onMount(startHitboxSync);
+
+  function setPopoverOpen(
+    userId: string,
+    cursorX: number,
+    open: boolean,
+    trigger: HTMLButtonElement,
+  ) {
+    selectedUserId = open ? userId : null;
+    selectedUserX = open
+      ? window.innerWidth > 0
+        ? trigger.getBoundingClientRect().left / window.innerWidth
+        : cursorX
+      : null;
+  }
 </script>
 
-<div class="size-full flex flex-col justify-end">
-  <div role="banner" class="relative h-8 w-full my-2">
-    {#each Object.entries($liveMetadata.cursorPositions) as [userId, cursor] (userId)}
-      {@const ico = $liveMetadata.foregroundApps.get(userId)?.ico}
+<div class="flex size-full flex-col justify-end">
+  <div role="banner" class="relative my-2 h-8 w-full">
+    {#each Object.entries($liveMetadata.cursorPositions) as [userId, cursor], index (userId)}
+      {@const foregroundApp = $liveMetadata.foregroundApps.get(userId)}
+      {@const popoverId = `scene-user-${index}`}
       {#if cursor}
+        {@const renderedX = selectedUserId === userId ? selectedUserX : cursor.mapped.x}
         <div
-          class="scene-hitbox absolute bottom-0 left-0 flex flex-col gap-1 items-center transition-transform ease-linear duration-1000"
-          style:transform={`translateX(${cursor.mapped.x * 100}vw)`}
+          class="absolute bottom-0 left-0 flex flex-col items-center gap-1 transition-transform duration-1000 ease-linear"
+          style:transform={`translateX(${(renderedX ?? cursor.mapped.x) * 100}vw)`}
         >
-          {#if ico}
+          {#if foregroundApp?.ico}
             <img
-              src={`data:image/png;base64,${ico}`}
+              src={`data:image/png;base64,${foregroundApp.ico}`}
               alt=""
               class="size-4 object-contain"
             />
           {/if}
-          <img
-            src="/fa.png"
-            alt=""
-            class="size-6"
-            style="filter: sepia(1) saturate(200%) hue-rotate(100deg);"
-          />
+
+          <Popover
+            id={popoverId}
+            label="Show live user information"
+            labelledBy={`${popoverId}-title`}
+            open={selectedUserId === userId}
+            onOpenChange={(open, trigger) =>
+              setPopoverOpen(userId, cursor.mapped.x, open, trigger)}
+            triggerClass="scene-hitbox"
+            panelClass="scene-hitbox bottom-[calc(100%+0.75rem)] w-68"
+            panelStyle={`left: clamp(calc(0.5rem - ${(renderedX ?? cursor.mapped.x) * 100}vw), -8rem, calc(100vw - ${(renderedX ?? cursor.mapped.x) * 100}vw - 17.5rem))`}
+          >
+            {#snippet trigger()}
+              <img
+                src="/fa.png"
+                alt=""
+                class="size-6 sepia saturate-200 hue-rotate-[100deg]"
+              />
+            {/snippet}
+
+            <SceneUserPopoverContent
+              titleId={`${popoverId}-title`}
+              {userId}
+              isLocal={userId === $liveMetadata.localId}
+              {cursor}
+              {foregroundApp}
+            />
+          </Popover>
         </div>
       {/if}
     {/each}
diff --git a/src/routes/scene/scene-user-popover-content.svelte b/src/routes/scene/scene-user-popover-content.svelte
new file mode 100644
index 0000000..08cb0e2
--- /dev/null
+++ b/src/routes/scene/scene-user-popover-content.svelte
@@ -0,0 +1,64 @@
+<script lang="ts">
+  import type { AppMeta, CursorPositions } from "$lib/bindings";
+  import { friends } from "$lib/listeners/friends";
+  import { profile } from "$lib/listeners/profile";
+
+  type Props = {
+    titleId: string;
+    userId: string;
+    isLocal: boolean;
+    cursor: CursorPositions;
+    foregroundApp?: AppMeta;
+  };
+
+  let { titleId, userId, isLocal, cursor, foregroundApp }: Props = $props();
+  let username = $derived(
+    $profile?.id === userId
+      ? $profile.displayName
+      : ($friends.find((friend) => friend.id === userId)?.displayName ??
+          "Unknown user"),
+  );
+
+  function compactId(id: string) {
+    return id.length > 18 ? `${id.slice(0, 9)}…${id.slice(-7)}` : id;
+  }
+</script>
+
+<article class="w-68 overflow-hidden text-neutral-100">
+  <header
+    class="flex w-max items-center ml-2 gap-1 px-2 py-0.5 bg-neutral-800 border border-neutral-500 border-b-0"
+  >
+    <div class="min-w-0 flex-1">
+      <p id={titleId} class="truncate text-xs">{username}</p>
+    </div>
+  </header>
+
+  <div
+    class="grid gap-3 p-2 text-sm bg-neutral-900 border border-neutral-500 shadow-lg"
+  >
+    <section>
+      <h3 class="text-xs font-medium text-neutral-400">Currently enjoying</h3>
+      <div class="mt-1 flex min-w-0 items-center gap-2">
+        {#if foregroundApp?.ico}
+          <img
+            src={`data:image/png;base64,${foregroundApp.ico}`}
+            alt=""
+            class="size-6 shrink-0 object-contain"
+          />
+        {/if}
+        <div class="min-w-0">
+          <p class="truncate text-xs">
+            {foregroundApp?.local ??
+              foregroundApp?.unlocal ??
+              "Waiting for data"}
+          </p>
+          {#if foregroundApp?.local && foregroundApp.unlocal}
+            <p class="truncate text-xs text-neutral-400">
+              {foregroundApp.unlocal}
+            </p>
+          {/if}
+        </div>
+      </div>
+    </section>
+  </div>
+</article>