File size: 3,992 Bytes
8fdc036 |
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 |
<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 { create_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;
export let line_breaks = true;
export let header_links = false;
let el: HTMLSpanElement;
let html: string;
const marked = create_marked({
header_links,
line_breaks
});
const is_external_url = (link: string | null): boolean => {
try {
return !!link && new URL(link, location.href).origin !== location.origin;
} catch (e) {
return false;
}
};
DOMPurify.addHook("afterSanitizeAttributes", function (node) {
if ("target" in node) {
if (is_external_url(node.getAttribute("href"))) {
node.setAttribute("target", "_blank");
node.setAttribute("rel", "noopener noreferrer");
}
}
});
function process_message(value: string): string {
if (render_markdown) {
value = marked.parse(value) as string;
}
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) {
const containsDelimiter = latex_delimiters.some(
(delimiter) =>
value.includes(delimiter.left) && value.includes(delimiter.right)
);
if (containsDelimiter) {
render_math_in_element(el, {
delimiters: latex_delimiters,
throwOnError: false
});
}
}
}
afterUpdate(() => render_html(message));
</script>
<span class:chatbot bind:this={el} class="md" class:prose={render_markdown}>
{#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;
}
span:not(.chatbot) :global(ul) {
list-style-position: inside;
}
span:not(.chatbot) :global(ol) {
list-style-position: inside;
}
span :global(p:not(:first-child)) {
margin-top: var(--spacing-xxl);
}
span :global(.md-header-anchor) {
/* position: absolute; */
margin-left: -25px;
padding-right: 8px;
line-height: 1;
color: var(--body-text-color-subdued);
opacity: 0;
}
span :global(h1:hover .md-header-anchor),
span :global(h2:hover .md-header-anchor),
span :global(h3:hover .md-header-anchor),
span :global(h4:hover .md-header-anchor),
span :global(h5:hover .md-header-anchor),
span :global(h6:hover .md-header-anchor) {
opacity: 1;
}
span.md :global(.md-header-anchor > svg) {
color: var(--body-text-color-subdued);
}
span :global(h1),
span :global(h2),
span :global(h3),
span :global(h4),
span :global(h5),
span :global(h6) {
display: flex;
align-items: center;
white-space-collapse: break-spaces;
}
.prose :global(:last-child) {
margin-bottom: 0;
}
</style>
|