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Monorepo for Tangled
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Svelte
at icy/tmrrpn
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120<script lang="ts"> import { untrack } from "svelte"; import { FileDiff } from "@pierre/diffs"; import ChevronDown from "$icon/chevron-down"; import ChevronRight from "$icon/chevron-right"; import LoaderCircle from "$icon/loader-circle"; import DiffStatPill from "$lib/components/repo/DiffStatPill.svelte"; import { clearPierreRender, pierreDiffOptions, type DiffStyle } from "$lib/components/repo/pierre"; import type { Action } from "svelte/action"; import type { FileContentsResult, PullDiffFile } from "$lib/api/pullDiff";
interface Props { file: PullDiffFile; // absent until this card's text has been fetched contents?: FileContentsResult; diffStyle?: DiffStyle; open?: boolean; // registers this card with the list's shared IntersectionObserver observe: Action<HTMLElement>; }
let { file, contents, diffStyle = "unified", open = true, observe }: Props = $props();
// the diff endpoint hands us metadata only, so unlike the commit page we give // pierre both file contents and let it diff them — which is also what makes // hunk expansion work const pair = $derived(contents && "oldFile" in contents ? contents : undefined); const note = $derived( file.note ?? (contents && "note" in contents ? contents.note : undefined) );
let host: HTMLElement | undefined = $state(); let mounted: FileDiff | undefined; // the style at hydrate time, so the options effect skips right after a mount let mountedStyle: DiffStyle | undefined;
$effect(() => { const element = host; const files = pair; if (!element || !files) return; // the diff arrives on the client, so there is never ssr output to keep: a // reload lands here with the previous render, drop it clearPierreRender(element); const instance = new FileDiff(pierreDiffOptions(untrack(() => diffStyle)), undefined, true); instance.hydrate({ oldFile: files.oldFile, newFile: files.newFile, fileContainer: element }); mounted = instance; mountedStyle = untrack(() => diffStyle); return () => { instance.cleanUp(); mounted = undefined; }; });
// a remount would lose expanded hunks, so a style change re-renders in place $effect(() => { const style = diffStyle; const instance = mounted; const files = pair; if (!instance || !files || style === mountedStyle) return; mountedStyle = style; instance.setOptions(pierreDiffOptions(style)); instance.render({ oldFile: files.oldFile, newFile: files.newFile, forceRender: true }); });</script>
<div use:observe data-diff-key={file.key} class="overflow-clip rounded-sm drop-shadow-xs"> <details id="file-{file.name}" {open} class="group w-full"> <!-- sticks below the diff toolbar, which is itself sticky at top-17 --> <summary class="sticky top-34.5 z-10 cursor-pointer list-none bg-background-default"> <div class="flex justify-between rounded-sm border border-border-default bg-background-default group-open:rounded-b-none" > <div class="flex items-center gap-2 p-2 typography-paragraph-small"> <ChevronRight class="inline size-4 shrink-0 group-open:hidden" aria-hidden="true" /> <ChevronDown class="hidden size-4 shrink-0 group-open:inline" aria-hidden="true" /> <DiffStatPill stat={{ ...file.stat, files_changed: 1 }} /> <span>{file.name}</span> </div> <!-- the appview's `Reviewed` checkbox goes here, with the localStorage review state that drives it --> <div class="flex items-center gap-2 px-2"></div> </div> </summary>
<div class="overflow-clip rounded-b-sm border-x border-b border-border-default"> {#if note} <div class="p-4 text-center typography-paragraph-small text-foreground-placeholder"> {note} </div> {:else if pair} <diffs-container class="diffs-container" bind:this={host}></diffs-container> {:else} <!-- reserves roughly the height the text will take, so the page does not jump as cards below the fold fill in. capped, a 5000-line file should not reserve a screen-mile --> <div style="min-height: min({file.lines}lh, 40rem)" class="flex items-start justify-center p-4 text-foreground-subtle" > <LoaderCircle class="size-4 animate-spin" aria-hidden="true" /> </div> {/if} </div> </details></div>