From bce557cc2dc767628bed6aac87301a1be7c5431b Mon Sep 17 00:00:00 2001
From: rxliuli <rxliuli@gmail.com>
Date: Tue, 4 Nov 2025 05:03:50 +0800
Subject: init commit

---
 src/components/AppIconRiver.svelte | 92 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/components/AppIconRiver.svelte

(limited to 'src/components/AppIconRiver.svelte')

diff --git a/src/components/AppIconRiver.svelte b/src/components/AppIconRiver.svelte
new file mode 100644
index 0000000..b673dd0
--- /dev/null
+++ b/src/components/AppIconRiver.svelte
@@ -0,0 +1,92 @@
+<script lang="ts">
+    import { onMount } from 'svelte';
+    import type { Artwork } from '@jet-app/app-store/api/models';
+    import AppIcon, { type AppIconProfile } from '~/components/AppIcon.svelte';
+
+    export let icons: Artwork[];
+    export let profile: AppIconProfile = 'app-icon-river';
+
+    $: aspectRatio = icons[0].width / icons[0].height;
+
+    let mounted = false;
+    const numberOfIcons = icons.length;
+
+    // We shift the order of the bottom row of icons to ensure that the same icons aren't shown
+    // next to each other. Note that this is different from purely shuffling the icons, as that
+    // could still lead to the same icons being next to one another, due to how small the set is.
+    // The input and output here is as such:
+    // in  = [1, 2, 3, 4, 5, 6, 7]
+    // out = [4, 5, 6, 7, 1, 2, 3]
+    const iconsInShiftedOrder = [
+        ...icons.slice(numberOfIcons / 2),
+        ...icons.slice(0, numberOfIcons / 2),
+    ];
+
+    // We are quadrupling the icons we render so the flow is seamless and stretches across the
+    // full width of the container.
+    const topRow = Array(4).fill(icons).flat();
+    const bottomRow = Array(4).fill(iconsInShiftedOrder).flat();
+
+    // We use this `mounted` flag to defer the rendering of the `AppIconRiver`, since it's markup heavy
+    // and has no semantic meaning for SEO. This deferring saves about 190kb of initial HTML per instance.
+    onMount(() => (mounted = true));
+</script>
+
+{#if mounted}
+    {#each [topRow, bottomRow] as iconRow}
+        <ul class="app-icons">
+            {#each iconRow as icon}
+                <li
+                    class="app-icon-container"
+                    style:--aspect-ratio={aspectRatio}
+                >
+                    <AppIcon {icon} {profile} fixedWidth={false} />
+                </li>
+            {/each}
+        </ul>
+    {/each}
+{/if}
+
+<style lang="scss">
+    @use '@amp/web-shared-styles/sasskit-stylekit/ac-sasskit-config';
+    @use 'ac-sasskit/core/locale' as *;
+
+    .app-icons {
+        --icon-width: var(--app-icon-river-icon-width, 128px);
+        --speed: var(--app-icon-river-speed, 240s);
+        --direction: -50%;
+
+        @include rtl {
+            --direction: 50%;
+        }
+        display: flex;
+        width: fit-content;
+        z-index: 2;
+        animation: scroll var(--speed) linear infinite;
+    }
+
+    .app-icons:last-of-type {
+        margin-bottom: 20px;
+    }
+
+    .app-icon-container {
+        width: var(--icon-width);
+        aspect-ratio: var(--aspect-ratio);
+        margin: 8px;
+    }
+
+    .app-icons:last-of-type .app-icon-container {
+        position: relative;
+        right: calc((var(--icon-width) / 2) + 8px);
+    }
+
+    @keyframes scroll {
+        0% {
+            transform: translateX(0);
+        }
+
+        100% {
+            transform: translateX(var(--direction));
+        }
+    }
+</style>
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