Improve GitLab embed
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@@ -8,15 +8,26 @@ import { s } from "../../styles";
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import { sanitizeUrl } from "../../utils/urls";
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type Props = Omit<Optional<HTMLIFrameElement>, "children"> & {
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/** The URL to load in the iframe */
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src?: string;
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/** Whether to display a border, defaults to true */
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border?: boolean;
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/** The aria title of the frame */
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title?: string;
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/** An icon to display under the frame representing the service */
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icon?: React.ReactNode;
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/** The canonical URL of the content */
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canonicalUrl?: string;
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/** Whether the node is currently selected */
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isSelected?: boolean;
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/** The width of the frame */
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width?: string;
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/** The height of the frame */
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height?: string;
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/** The allow policy of the frame */
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allow?: string;
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/** Whether to skip sanitization of the `src` prop */
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dangerouslySkipSanitizeSrc?: boolean;
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};
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type PropsWithRef = Props & {
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@@ -58,6 +69,7 @@ class Frame extends React.Component<PropsWithRef> {
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isSelected,
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referrerPolicy,
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className = "",
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dangerouslySkipSanitizeSrc,
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src,
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} = this.props;
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const withBar = !!(icon || canonicalUrl);
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@@ -82,7 +94,7 @@ class Frame extends React.Component<PropsWithRef> {
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frameBorder="0"
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title="embed"
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loading="lazy"
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src={sanitizeUrl(src)}
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src={dangerouslySkipSanitizeSrc ? src : sanitizeUrl(src)}
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referrerPolicy={referrerPolicy}
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allowFullScreen
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/>
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@@ -155,6 +167,19 @@ const Bar = styled.div`
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position: relative;
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`;
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/**
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* Resize observer script that sends a message to the parent window when content is resized. Inject
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* this script into the iframe to receive resize events.
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*/
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export const resizeObserverScript = `<script>
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const resizeObserver = new ResizeObserver((entries) => {
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for (const entry of entries) {
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window.parent.postMessage({ "type": "frame-resized", "value": entry.contentRect.height }, '*');
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}
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});
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resizeObserver.observe(document.body);
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</script>`;
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export default React.forwardRef<HTMLIFrameElement, Props>((props, ref) => (
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<Frame {...props} forwardedRef={ref} />
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));
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@@ -1,30 +1,25 @@
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import * as React from "react";
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import styled from "styled-components";
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import Frame from "../components/Frame";
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import { EmbedProps as Props } from ".";
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const Iframe = styled.iframe`
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margin-top: 8px;
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`;
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function Gist(props: Props) {
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const gistUrl = new URL(props.attrs.href);
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const id = gistUrl.pathname.split("/")[2];
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const gistLink = `https://gist.github.com/${id}.js`;
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const gistScript = `<script type="text/javascript" src="${gistLink}"></script>`;
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const styles =
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"<style>*{ font-size:12px; } body { margin: 0; } .gist .blob-wrapper.data { max-height:150px; overflow:auto; }</style>";
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"<style>*{ font-size:12px; } body { margin: 0; } .gist .blob-wrapper.data { max-height:300px; overflow:auto; }</style>";
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const iframeHtml = `<html><head><base target="_parent">${styles}</head><body>${gistScript}</body></html>`;
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return (
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<Iframe
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<Frame
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src={`data:text/html;base64,${btoa(iframeHtml)}`}
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className={props.isSelected ? "ProseMirror-selectednode" : ""}
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frameBorder="0"
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width="100%"
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height="200px"
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scrolling="no"
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height="355px"
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id={`gist-${id}`}
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title="GitHub Gist"
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dangerouslySkipSanitizeSrc
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/>
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);
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}
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@@ -1,28 +1,38 @@
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import * as React from "react";
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import styled from "styled-components";
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import useEventListener from "~/hooks/useEventListener";
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import Frame, { resizeObserverScript } from "../components/Frame";
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import { EmbedProps as Props } from ".";
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const Iframe = styled.iframe`
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margin-top: 8px;
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`;
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function GitLabSnippet(props: Props) {
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const frame = React.useRef(null);
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const [height, setHeight] = React.useState(400);
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const snippetUrl = new URL(props.attrs.href);
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const id = snippetUrl.pathname.split("/").pop();
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const snippetLink = `${snippetUrl}.js`;
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const snippetScript = `<script type="text/javascript" src="${snippetLink}"></script>`;
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const styles = "<style>body { margin: 0; }</style>";
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const snippetScript = `<script type="text/javascript" src="${snippetLink}"></script>${resizeObserverScript}`;
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const styles =
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"<style>body { margin: 0; .gitlab-embed-snippets { margin: 0; } }</style>";
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const iframeHtml = `<html><head><base target="_parent">${styles}</head><body>${snippetScript}</body></html>`;
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useEventListener(
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"message",
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(event: MessageEvent<{ type: string; value: number }>) => {
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if (event.data.type === "frame-resized") {
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setHeight(event.data.value);
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}
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}
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);
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return (
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<Iframe
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<Frame
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ref={frame}
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src={`data:text/html;base64,${btoa(iframeHtml)}`}
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className={props.isSelected ? "ProseMirror-selectednode" : ""}
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frameBorder="0"
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width="100%"
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height="400px"
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height={`${height}px`}
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id={`gitlab-snippet-${id}`}
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title="GitLab Snippet"
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dangerouslySkipSanitizeSrc
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/>
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);
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}
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