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Fix: Spoilers would not toggle.

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Hook events into Markdown render using ref.
This commit is contained in:
Paul 2021-07-07 12:45:55 +01:00
parent f88a37f831
commit 197ba53c60
2 changed files with 64 additions and 69 deletions
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4
src/components/common/messaging/attachments/Attachment.module.scss
View file

@ -4,7 +4,7 @@
grid-auto-flow: row dense;
width: max-content;
border-radius: 6px;
margin: .125rem 0 .125rem;
@ -31,7 +31,7 @@
}
}
&.video {
&.video {
.actions {
padding: 10px 12px;
border-radius: 6px 6px 0 0;

129
src/components/markdown/Renderer.tsx
View file

@ -13,7 +13,7 @@ import "prismjs/themes/prism-tomorrow.css";
import { RE_MENTIONS } from "revolt.js";
import styles from "./Markdown.module.scss";
import { useContext } from "preact/hooks";
import { useCallback, useContext, useRef } from "preact/hooks";
import { internalEmit } from "../../lib/eventEmitter";
@ -83,64 +83,6 @@ declare global {
}
}
// Handler for internal links, pushes events to React using magic.
if (typeof window !== "undefined") {
window.internalHandleURL = function (element: HTMLAnchorElement) {
const url = new URL(element.href, location.href);
const pathname = url.pathname;
if (pathname.startsWith("/@")) {
internalEmit("Intermediate", "openProfile", pathname.substr(2));
} else {
internalEmit("Intermediate", "navigate", pathname);
}
};
}
md.renderer.rules.link_open = function (tokens, idx, options, env, self) {
let internal;
const hIndex = tokens[idx].attrIndex("href");
if (hIndex >= 0) {
try {
// For internal links, we should use our own handler to use react-router history.
// @ts-ignore
const href = tokens[idx].attrs[hIndex][1];
const url = new URL(href, location.href);
if (url.hostname === location.hostname) {
internal = true;
// I'm sorry.
tokens[idx].attrPush([
"onclick",
"internalHandleURL(this); return false",
]);
if (url.pathname.startsWith("/@")) {
tokens[idx].attrPush(["data-type", "mention"]);
}
}
} catch (err) {
// Ignore the error, treat as normal link.
}
}
if (!internal) {
// Add target=_blank for external links.
const aIndex = tokens[idx].attrIndex("target");
if (aIndex < 0) {
tokens[idx].attrPush(["target", "_blank"]);
} else {
try {
// @ts-ignore
tokens[idx].attrs[aIndex][1] = "_blank";
} catch (_) {}
}
}
return defaultRender(tokens, idx, options, env, self);
};
md.renderer.rules.emoji = function (token, idx) {
return generateEmoji(token[idx].content);
};
@ -172,21 +114,74 @@ export default function Renderer({ content, disallowBigEmoji }: MarkdownProps) {
? false
: content.replace(RE_TWEMOJI, "").trim().length === 0;
const toggle = useCallback((ev: MouseEvent) => {
if (ev.currentTarget) {
let element = ev.currentTarget as HTMLDivElement;
if (element.classList.contains("spoiler")) {
element.classList.add("shown");
}
}
}, []);
const handleLink = useCallback((ev: MouseEvent) => {
ev.preventDefault();
if (ev.currentTarget) {
const element = ev.currentTarget as HTMLAnchorElement;
const url = new URL(element.href, location.href);
const pathname = url.pathname;
if (pathname.startsWith("/@")) {
internalEmit("Intermediate", "openProfile", pathname.substr(2));
} else {
internalEmit("Intermediate", "navigate", pathname);
}
}
}, []);
return (
<span
ref={el => {
if (el) {
(el.querySelectorAll<HTMLDivElement>('.spoiler'))
.forEach(element => {
element.removeEventListener('click', toggle);
element.addEventListener('click', toggle);
});
(el.querySelectorAll<HTMLAnchorElement>('a'))
.forEach(element => {
element.removeEventListener('click', handleLink);
element.removeAttribute('data-type');
element.removeAttribute('target');
let internal;
const href = element.href;
if (href) {
try {
const url = new URL(href, location.href);
if (url.hostname === location.hostname) {
internal = true;
element.addEventListener('click', handleLink);
if (url.pathname.startsWith('/@')) {
element.setAttribute('data-type', 'mention');
}
}
} catch (err) {}
}
if (!internal) {
element.setAttribute('target', '_blank');
}
});
}
}}
className={styles.markdown}
dangerouslySetInnerHTML={{
__html: md.render(newContent),
}}
data-large-emojis={useLargeEmojis}
onClick={(ev) => {
if (ev.target) {
let element = ev.currentTarget;
if (element.classList.contains("spoiler")) {
element.classList.add("shown");
}
}
}}
/>
);
}