Mirror of my GitHub Pages site
www.spenser.black/
Add copy to clipboard for Steam markup
Spenser Black
(Jul 17, 2026, 8:00 PM EDT)
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src/components/Steamdown.svelte
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src/components/Steamdown.svelte
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<script lang="ts">
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import { parse, render } from "@steamdown/core";
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import { render as renderHTML } from "@steamdown/html";
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import { write as writeClipboard } from "../scripts/clipboard";
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type Output = "markup" | "preview";
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let output = $state<Output>("markup");
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const onSubmit = (e: SubmitEvent) => {
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e.preventDefault();
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};
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let copied = $state(false);
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let copyTimeout: number | null = null;
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const onCopyClick = async () => {
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if (copyTimeout != null) {
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clearTimeout(copyTimeout);
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}
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await writeClipboard(markup);
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copied = true;
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copyTimeout = setTimeout(() => {
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copied = false;
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}, 750);
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};
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</script>
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···
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<h3>Output</h3>
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<div id="outputs">
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{#if output === "markup"}
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<button
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type="button"
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id="button-copy-markup"
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class="primary"
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title="Copy markup to clipboard"
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onclick={onCopyClick}
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>Cop{#if copied}ied{:else}y{/if}</button
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>
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<output id="output-markup" for="steamdown-source radio-markup">
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<pre id="output-markup-content">{#each markup.split("\n") as line}<code
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>{line}</code
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width: 100%;
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margin: auto;
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}
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#outputs {
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position: relative;
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}
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#output-markup-content {
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overflow-x: auto;
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}
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#button-copy-markup {
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position: absolute;
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right: 0;
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top: 0;
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}
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</style>