gradio-app--gradio/js/chatbot/shared/Copy.svelte

<script lang="ts">
	import { Copy, Check } from "@gradio/icons";
	import { IconButton } from "@gradio/atoms";
	import type { CopyData } from "@gradio/utils";
	import type { I18nFormatter } from "js/core/src/gradio_helper";

	let {
		value,
		watermark = null,
		i18n,
		oncopy
	}: {
		value: string;
		watermark?: string | null;
		i18n: I18nFormatter;
		oncopy?: (data: CopyData) => void;
	} = $props();

	let copied = $state(false);
	let timer: NodeJS.Timeout;

	function copy_feedback(): void {
		copied = true;
		if (timer) clearTimeout(timer);
		timer = setTimeout(() => {
			copied = false;
		}, 2000);
	}

	async function handle_copy(): Promise<void> {
		if ("clipboard" in navigator) {
			oncopy?.({ value: value });
			const text_to_copy = watermark ? `${value}\n\n${watermark}` : value;
			await navigator.clipboard.writeText(text_to_copy);
			copy_feedback();
		} else {
			const textArea = document.createElement("textarea");
			const text_to_copy = watermark ? `${value}\n\n${watermark}` : value;
			textArea.value = text_to_copy;

			textArea.style.position = "absolute";
			textArea.style.left = "-999999px";

			document.body.prepend(textArea);
			textArea.select();

			try {
				document.execCommand("copy");
				copy_feedback();
			} catch (error) {
				console.error(error);
			} finally {
				textArea.remove();
			}
		}
	}

	$effect(() => {
		return () => {
			if (timer) clearTimeout(timer);
		};
	});
</script>

<IconButton
	onclick={handle_copy}
	label={copied ? i18n("chatbot.copied_message") : i18n("chatbot.copy_message")}
	Icon={copied ? Check : Copy}
/>