File size: 2,363 Bytes
8766bc5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | <script lang="ts">
import { afterUpdate, createEventDispatcher } from "svelte";
import DOMPurify from "dompurify";
import render_math_in_element from "katex/dist/contrib/auto-render.js";
import "katex/dist/katex.min.css";
import { marked } from "./utils";
import "./prism.css";
export let chatbot = true;
export let message: string;
export let sanitize_html = true;
export let latex_delimiters: {
left: string;
right: string;
display: boolean;
}[] = [];
export let render_markdown = true;
let el: HTMLSpanElement;
let html: string;
DOMPurify.addHook("afterSanitizeAttributes", function (node) {
if ("target" in node) {
node.setAttribute("target", "_blank");
node.setAttribute("rel", "noopener noreferrer");
}
});
function process_message(value: string): string {
if (render_markdown) {
value = marked.parse(value);
}
if (sanitize_html) {
value = DOMPurify.sanitize(value);
}
return value;
}
$: if (message && message.trim()) {
html = process_message(message);
} else {
html = "";
}
async function render_html(value: string): Promise<void> {
if (latex_delimiters.length > 0 && value) {
render_math_in_element(el, {
delimiters: latex_delimiters,
throwOnError: false
});
}
}
afterUpdate(() => render_html(message));
</script>
<span class:chatbot bind:this={el} class="md">
{#if render_markdown}
{@html html}
{:else}
{html}
{/if}
</span>
<style>
span :global(div[class*="code_wrap"]) {
position: relative;
}
/* KaTeX */
span :global(span.katex) {
font-size: var(--text-lg);
direction: ltr;
}
span :global(div[class*="code_wrap"] > button) {
position: absolute;
top: var(--spacing-sm);
right: var(--spacing-sm);
z-index: 1;
cursor: pointer;
border-bottom-left-radius: var(--radius-sm);
padding: 5px;
padding: var(--spacing-md);
width: 25px;
height: 25px;
}
span :global(code > button > span) {
position: absolute;
top: var(--spacing-sm);
right: var(--spacing-sm);
width: 12px;
height: 12px;
}
span :global(.check) {
position: absolute;
top: 0;
right: 0;
opacity: 0;
z-index: var(--layer-top);
transition: opacity 0.2s;
background: var(--background-fill-primary);
padding: var(--size-1);
width: 100%;
height: 100%;
color: var(--body-text-color);
}
span :global(pre) {
position: relative;
}
</style>
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