vert/src/lib/components/functional/FormatDropdown.svelte

370 lines
9.9 KiB
Svelte

<script lang="ts">
import { duration, fade, transition } from "$lib/animation";
import { isMobile, files } from "$lib/store/index.svelte";
import type { Categories } from "$lib/types";
import { ChevronDown, SearchIcon } from "lucide-svelte";
import { onMount } from "svelte";
import { quintOut } from "svelte/easing";
type Props = {
categories: Categories;
selected?: string;
onselect?: (option: string) => void;
disabled?: boolean;
};
let {
categories,
selected = $bindable(""),
onselect,
disabled,
}: Props = $props();
let open = $state(false);
let hover = $state(false);
let dropdown = $state<HTMLDivElement>();
let initialCategory = $state<string | null>();
let currentCategory = $state<string | null>();
let searchQuery = $state("");
let dropdownMenu: HTMLElement | undefined = $state();
// initialize current category
$effect(() => {
if (!currentCategory) {
if (selected) {
const foundCat = Object.keys(categories).find((cat) =>
categories[cat].formats.includes(selected),
);
currentCategory =
foundCat || Object.keys(categories)[0] || null;
initialCategory = currentCategory;
} else {
// find category based on file types
const fileFormats = files.files.map((f) => f.from);
const foundCat = Object.keys(categories).find((cat) =>
fileFormats.some((format) =>
categories[cat].formats.includes(format),
),
);
currentCategory =
foundCat || Object.keys(categories)[0] || null;
initialCategory = currentCategory;
}
}
});
// other available categories based on current category (e.g. converting between video and audio)
const availableCategories = $derived.by(() => {
if (!currentCategory) return Object.keys(categories);
return Object.keys(categories).filter(
(cat) =>
cat === currentCategory ||
categories[cat].canConvertTo?.includes(currentCategory || ""),
);
});
const shouldShowFormat = (format: string, category: string): boolean => {
const currentFileExt = files.files[0]?.from;
if (!currentFileExt) return true;
if (category === initialCategory) {
return true;
} else if (
initialCategory &&
categories[initialCategory].formats.includes(format)
) {
return false;
}
const formatInOtherCategories = Object.keys(categories)
.filter((cat) => cat !== category)
.some((cat) => categories[cat].formats.includes(format));
if (formatInOtherCategories) {
const nativeCategory = Object.keys(categories).find((cat) =>
cat.toLowerCase().includes(format.slice(1)),
);
return category === nativeCategory;
}
return true;
};
const filteredData = $derived.by(() => {
// if no query, return formats for current category
if (!searchQuery) {
return {
categories: availableCategories,
formats: currentCategory
? categories[currentCategory].formats.filter((format) =>
shouldShowFormat(format, currentCategory || ""),
)
: [],
};
}
const searchLower = searchQuery.toLowerCase();
// find all categories that have formats matching the search query
const matchingCategories = availableCategories.filter((cat) =>
categories[cat].formats.some(
(format) =>
format.toLowerCase().includes(searchLower) &&
shouldShowFormat(format, cat),
),
);
if (matchingCategories.length === 0) {
return {
categories: availableCategories,
formats: [],
};
}
// find all matching formats across all categories
const allMatchingFormats = matchingCategories.flatMap((cat) => {
return categories[cat].formats
.filter(
(format) =>
format.toLowerCase().includes(searchLower) &&
shouldShowFormat(format, cat),
)
.map((format) => ({ format, category: cat }));
});
// if current category has no matches, switch to first category that does
const currentCategoryHasMatches =
currentCategory &&
allMatchingFormats.some(
(item) => item.category === currentCategory,
);
if (!currentCategoryHasMatches && matchingCategories.length > 0) {
const newCategory = matchingCategories[0];
currentCategory = newCategory;
}
// return formats only from the current category that match the search
const filteredFormats = currentCategory
? categories[currentCategory].formats.filter(
(format) =>
format.toLowerCase().includes(searchLower) &&
shouldShowFormat(format, currentCategory || ""),
)
: [];
return {
categories:
matchingCategories.length > 0
? matchingCategories
: availableCategories,
formats: filteredFormats,
};
});
const selectOption = (option: string) => {
selected = option;
open = false;
// find the category of this option if it's not in the current category
if (
currentCategory &&
!categories[currentCategory].formats.includes(option)
) {
const formatCategory = Object.keys(categories).find((cat) =>
categories[cat].formats.includes(option),
);
if (formatCategory) {
currentCategory = formatCategory;
}
}
onselect?.(option);
};
const selectCategory = (category: string) => {
if (!categories[category]) return;
currentCategory = category;
};
const handleSearch = (event: Event) => {
const query = (event.target as HTMLInputElement).value;
searchQuery = query;
// find which categories have matching formats & switch
if (query) {
const queryLower = query.toLowerCase();
const categoriesWithMatches = availableCategories.filter((cat) =>
categories[cat].formats.some(
(format) =>
format.toLowerCase().includes(queryLower) &&
shouldShowFormat(format, cat),
),
);
if (categoriesWithMatches.length > 0) {
const currentHasMatches =
currentCategory &&
categories[currentCategory].formats.some(
(format) =>
format.toLowerCase().includes(queryLower) &&
shouldShowFormat(format, currentCategory || ""),
);
if (!currentHasMatches) {
currentCategory = categoriesWithMatches[0];
}
}
}
};
onMount(() => {
const handleClickOutside = (e: MouseEvent) => {
if (dropdown && !dropdown.contains(e.target as Node)) {
open = false;
}
};
window.addEventListener("click", handleClickOutside);
return () => window.removeEventListener("click", handleClickOutside);
});
// initialize selected format if none chosen
$effect(() => {
if (
!selected &&
currentCategory &&
categories[currentCategory]?.formats?.length > 0
) {
const from = files.files[0]?.from;
const firstDiff = categories[currentCategory].formats.find(
(f) => f !== from,
);
selected = firstDiff || categories[currentCategory].formats[0];
}
});
</script>
<div
class="relative w-full min-w-fit text-xl font-medium text-center"
bind:this={dropdown}
>
<button
class="font-display w-full justify-center overflow-hidden relative cursor-pointer px-3 py-3.5 bg-button {disabled
? 'opacity-50 cursor-auto'
: 'cursor-pointer'} flex items-center rounded-full focus:!outline-none"
onclick={() => (open = !open)}
onmouseenter={() => (hover = true)}
onmouseleave={() => (hover = false)}
{disabled}
>
<!-- <p>{selected}</p> -->
<div class="grid grid-cols-1 grid-rows-1 w-fit flex-grow-0">
{#key selected}
<p
in:fade={{
duration,
easing: quintOut,
}}
out:fade={{
duration,
easing: quintOut,
}}
class="col-start-1 row-start-1 text-center font-body font-medium"
>
{selected}
</p>
{/key}
{#if currentCategory}
{#each categories[currentCategory].formats as option}
<p
class="col-start-1 row-start-1 invisible pointer-events-none"
>
{option}
</p>
{/each}
{/if}
</div>
<ChevronDown
class="w-4 h-4 ml-4 mt-0.5 flex-shrink-0"
style="transform: rotate({open
? 180
: 0}deg); transition: transform {duration}ms {transition};"
/>
</button>
{#if open}
<div
bind:this={dropdownMenu}
transition:fade={{
duration,
easing: quintOut,
}}
class={$isMobile
? "fixed inset-x-0 bottom-0 w-full z-[200] shadow-xl bg-panel-alt shadow-black/25 rounded-t-2xl overflow-hidden"
: "w-[250%] min-w-full shadow-xl bg-panel-alt shadow-black/25 absolute -translate-x-1/2 top-full mt-2 z-50 rounded-2xl overflow-hidden"}
>
<!-- search box -->
<div class="p-3 w-full">
<div class="relative">
<input
type="text"
placeholder="Search format"
class="flex-grow w-full !pl-11 !pr-3 rounded-lg bg-panel text-foreground"
bind:value={searchQuery}
oninput={handleSearch}
onfocus={() => {}}
/>
<span
class="absolute left-4 top-1/2 -translate-y-1/2 flex items-center"
>
<SearchIcon class="w-4 h-4" />
</span>
{#if searchQuery}
<span
class="absolute right-2 top-1/2 -translate-y-1/2 text-xs text-muted"
style="font-size: 0.7rem;"
>
{filteredData.formats.length}
{filteredData.formats.length === 1
? "result"
: "results"}
</span>
{/if}
</div>
</div>
<!-- available categories -->
<div class="flex items-center justify-between">
{#each filteredData.categories as category}
<button
class="flex-grow text-lg hover:text-muted/20 border-b-[1px] pb-2 capitalize
{currentCategory === category
? 'text-accent border-b-accent'
: 'border-b-separator text-muted'}"
onclick={() => selectCategory(category)}
>
{category}
</button>
{/each}
</div>
<!-- available formats -->
<div class="max-h-80 overflow-y-auto grid grid-cols-3 gap-2 p-2">
{#if filteredData.formats.length > 0}
{#each filteredData.formats as format}
<button
class="w-full p-2 text-center rounded-xl
{format === selected ? 'bg-accent text-black' : 'hover:bg-panel'}"
onclick={() => selectOption(format)}
>
{format}
</button>
{/each}
{:else}
<div class="col-span-3 text-center p-4 text-muted">
{searchQuery
? "No formats match your search"
: "No formats available"}
</div>
{/if}
</div>
</div>
{/if}
</div>