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/pages/DefaultPage.svelte | 173 ++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 src/components/pages/DefaultPage.svelte

(limited to 'src/components/pages/DefaultPage.svelte')

diff --git a/src/components/pages/DefaultPage.svelte b/src/components/pages/DefaultPage.svelte
new file mode 100644
index 0000000..7905b07
--- /dev/null
+++ b/src/components/pages/DefaultPage.svelte
@@ -0,0 +1,173 @@
+<script lang="ts" context="module">
+    import type {
+        PagePresentationOptions,
+        Shelf,
+    } from '@jet-app/app-store/api/models';
+    import type { WebRenderablePage } from '@jet-app/app-store/api/models/web-renderable-page';
+
+    /**
+     * Just the `Page` props that we actually need to render this component
+     */
+    export interface DefaultPageRequirements extends WebRenderablePage {
+        shelves: Shelf[];
+        presentationOptions?: PagePresentationOptions;
+    }
+</script>
+
+<script lang="ts">
+    import type { MarkerShelf } from '~/components/jet/shelf/MarkerShelf.svelte';
+    import { isUberShelf } from '~/components/jet/shelf/UberShelf.svelte';
+    import ShelfComponent from '~/components/jet/shelf/Shelf.svelte';
+    import { partition } from '~/utils/array';
+    import { carouselMediaStyle } from '~/stores/carousel-media-style';
+    import mediaQueries from '~/utils/media-queries';
+    import { isHeroCarouselShelf } from '../jet/shelf/HeroCarouselShelf.svelte';
+    import { isRtl } from '~/utils/locale';
+
+    interface $$Slots {
+        'before-shelves': {};
+
+        /**
+         * If {@linkcode ShelfComponent}` recognizes a shelf to be a {@linkcode MarkerShelf},
+         * this slot will be rendered so that the "page" data can be supplied by a "parent"
+         * component
+         */
+        'marker-shelf': {
+            shelf: MarkerShelf;
+        };
+    }
+
+    export let page: DefaultPageRequirements;
+
+    $: ({ title, presentationOptions = [] } = page);
+
+    // Some shelves are meant to be rendered above the title, rather than below it
+    $: [aboveTitleShelves, belowTitleShelves] = partition(
+        page.shelves,
+        (shelf) => {
+            // Some "uber" shelves might be placed above the title
+            if (isUberShelf(shelf)) {
+                const [uber] = shelf.items;
+                return uber.style === 'above';
+            }
+
+            // Everything else should be below it
+            return false;
+        },
+    );
+
+    $: prefersHiddenPageTitle = presentationOptions.includes(
+        'prefersHiddenPageTitle',
+    );
+    $: prefersLargeTitle = presentationOptions.includes('prefersLargeTitle');
+    $: prefersOverlayedPageHeader =
+        $mediaQueries === 'xsmall' &&
+        presentationOptions.includes('prefersOverlayedPageHeader');
+    $: isOnDarkBackground =
+        prefersOverlayedPageHeader && $carouselMediaStyle === 'dark';
+
+    $: isTitleDuplicatedInHero = (() => {
+        const firstShelf = page.shelves?.[0];
+
+        if (
+            !firstShelf ||
+            !isHeroCarouselShelf(firstShelf) ||
+            firstShelf.items?.length !== 1
+        ) {
+            return false;
+        }
+
+        const { items: ltrItems, rtlItems } = firstShelf.items?.[0] ?? {};
+        const firstItem = isRtl() && rtlItems?.length ? rtlItems : ltrItems;
+        const firstTitle = firstItem?.[0]?.overlay?.titleText;
+
+        return title === firstTitle;
+    })();
+</script>
+
+<div
+    class="default-page-container"
+    data-testid="default-page-container"
+    class:with-overlaid-title={prefersOverlayedPageHeader}
+    class:with-title-in-hero={isTitleDuplicatedInHero}
+>
+    {#each aboveTitleShelves as shelf}
+        <ShelfComponent {shelf}>
+            <slot name="marker-shelf" slot="marker-shelf" let:shelf {shelf} />
+        </ShelfComponent>
+    {/each}
+
+    {#if title && !prefersHiddenPageTitle && !isTitleDuplicatedInHero}
+        <h1
+            data-test-id="page-title"
+            class:large-title={prefersLargeTitle}
+            class:overlaid={prefersOverlayedPageHeader}
+            class:on-dark-background={isOnDarkBackground}
+        >
+            {title}
+        </h1>
+    {/if}
+
+    <slot name="before-shelves" />
+
+    {#each belowTitleShelves as shelf}
+        {#if !shelf.isHidden}
+            <ShelfComponent {shelf}>
+                <slot
+                    name="marker-shelf"
+                    slot="marker-shelf"
+                    let:shelf
+                    {shelf}
+                />
+            </ShelfComponent>
+        {/if}
+    {/each}
+</div>
+
+<style lang="scss">
+    @use 'ac-sasskit/modules/viewportcontent/core' as *;
+    @use 'amp/stylekit/core/viewports' as *;
+
+    .default-page-container {
+        flex-grow: 1;
+        width: 100%;
+        max-width: viewport-content-for(xlarge);
+        margin: 0 auto;
+    }
+
+    .default-page-container.with-overlaid-title {
+        margin-top: -13px;
+    }
+
+    .default-page-container.with-title-in-hero {
+        @media (--range-small-up) {
+            margin-top: 10px;
+        }
+    }
+
+    h1 {
+        padding: 11px var(--bodyGutter);
+        font: var(--large-title-emphasized);
+        letter-spacing: -0.5px;
+        word-wrap: break-word;
+        color: var(--systemPrimary, #000);
+        position: relative;
+        z-index: 1;
+        transition: color 210ms ease-in;
+    }
+
+    h1.large-title {
+        font: var(--large-title-emphasized-tall);
+    }
+
+    h1.overlaid {
+        position: absolute;
+        z-index: 3;
+        padding: var(--bodyGutter) var(--bodyGutter) 0;
+        color: var(--systemPrimary-onLight, #000);
+    }
+
+    h1.on-dark-background {
+        color: var(--systemPrimary-onDark);
+    }
+</style>
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