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<script lang="ts">
import type { PageFragment } from '$gql/graphql';
import { getSelectionContext } from '$lib/selection/Selection.svelte';
import SelectionOverlay from '$lib/selection/SelectionOverlay.svelte';
import { src } from '$lib/Utils';
interface Props {
page: PageFragment;
index: number;
open: (page: number) => void;
updateCover: (page: number) => void;
}
let { page, index, open, updateCover }: Props = $props();
const selection = getSelectionContext<PageFragment>();
let span: 'single' | 'double' | 'triple' = $derived.by(() => {
const aspectRatio = page.image.aspectRatio;
if (aspectRatio <= 1) {
return 'single';
} else if (aspectRatio > 1 && aspectRatio <= 2) {
return 'double';
} else {
return 'triple';
}
});
function onclick(event: MouseEvent | KeyboardEvent) {
if (event instanceof KeyboardEvent && event.key !== 'Enter') {
return;
}
if (selection.active) {
if (event.ctrlKey) {
open(index);
} else if (selectable) {
selection.update(index, event.shiftKey);
}
} else if (event.ctrlKey) {
updateCover(page.id);
} else {
open(index);
}
event.preventDefault();
}
let selectable = $derived(selection.selectable(page));
let dim = $derived(selection.active && !selectable);
let selected = $derived(selection.contains(page.id));
</script>
<div
class:dim
role="button"
tabindex="0"
class="{span} relative overflow-hidden rounded-sm focus-visible:outline-4 focus-visible:outline-blue-600"
{onclick}
onkeydown={onclick}
>
<SelectionOverlay position="top" {selected} />
<img
class="h-full w-full object-cover object-[center_top] transition-opacity"
loading="lazy"
alt=""
width={page.image.width}
height={page.image.height}
src={src(page.image)}
title={`${page.path} (${page.image.width} x ${page.image.height})`}
/>
</div>
<style>
.dim {
cursor: not-allowed;
}
.dim > img {
opacity: 0.2;
filter: grayscale(1);
}
.double {
grid-column: span 2;
}
.triple {
grid-column: span 3;
}
</style>
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