feat: markdown editor and markdown renderer

web/package.json

@@ -91,6 +91,7 @@
     "@kleros/ui-components-library": "^2.20.0",
     "@lifi/wallet-management": "^3.7.1",
     "@lifi/widget": "^3.18.1",
+    "@mdxeditor/editor": "^3.45.0",
     "@reown/appkit": "^1.7.1",
     "@reown/appkit-adapter-wagmi": "^1.7.1",
     "@sentry/react": "^7.120.0",
@@ -99,6 +100,7 @@
     "@solana/wallet-adapter-react": "^0.15.36",
     "@solana/web3.js": "^1.98.0",
     "@tanstack/react-query": "^5.69.0",
+    "@types/dompurify": "^3.2.0",
     "@types/react-modal": "^3.16.3",
     "@wagmi/connectors": "^5.7.11",
     "@wagmi/core": "^2.16.7",
@@ -107,6 +109,7 @@
     "chartjs-adapter-moment": "^1.0.1",
     "chartjs-plugin-datalabels": "^2.2.0",
     "core-js": "^3.39.0",
+    "dompurify": "^3.2.6",
     "ethers": "^5.8.0",
     "graphql": "^16.9.0",
     "graphql-request": "^7.1.2",

web/src/components/EvidenceCard.tsx

@@ -1,7 +1,6 @@
 import React, { useMemo } from "react";
 import styled, { css } from "styled-components";
 
-import ReactMarkdown from "react-markdown";
 import { useParams } from "react-router-dom";
 
 import { Card } from "@kleros/ui-components-library";
@@ -18,9 +17,11 @@ import { hoverShortTransitionTiming } from "styles/commonStyles";
 import { landscapeStyle } from "styles/landscapeStyle";
 import { responsiveSize } from "styles/responsiveSize";
 
+import JurorTitle from "pages/Home/TopJurors/JurorCard/JurorTitle";
+
 import { ExternalLink } from "./ExternalLink";
 import { InternalLink } from "./InternalLink";
-import JurorTitle from "pages/Home/TopJurors/JurorCard/JurorTitle";
+import MarkdownRenderer from "./MarkdownRenderer";
 
 const StyledCard = styled(Card)`
   width: 100%;
@@ -66,17 +67,6 @@ const Index = styled.p`
 `;
 
 const ReactMarkdownWrapper = styled.div``;
-const StyledReactMarkdown = styled(ReactMarkdown)`
-  a {
-    font-size: 16px;
-  }
-  code {
-    color: ${({ theme }) => theme.secondaryText};
-  }
-  p {
-    margin: 0;
-  }
-`;
 
 const BottomShade = styled.div`
   background-color: ${({ theme }) => theme.lightBlue};
@@ -227,10 +217,12 @@ const EvidenceCard: React.FC<IEvidenceCard> = ({
         </IndexAndName>
         {name && description ? (
           <ReactMarkdownWrapper dir="auto">
-            <StyledReactMarkdown>{description}</StyledReactMarkdown>
+            <MarkdownRenderer content={description} />
           </ReactMarkdownWrapper>
         ) : (
-          <p>{evidence}</p>
+          <ReactMarkdownWrapper dir="auto">
+            <MarkdownRenderer content={evidence} />
+          </ReactMarkdownWrapper>
         )}
       </TopContent>
       <BottomShade>

web/src/components/ExternalLinkWarning.tsx

@@ -0,0 +1,168 @@
+import React from "react";
+import styled, { css } from "styled-components";
+
+import Modal from "react-modal";
+
+import { Button } from "@kleros/ui-components-library";
+
+import WarningIcon from "svgs/icons/warning-outline.svg";
+
+import { landscapeStyle } from "styles/landscapeStyle";
+
+const StyledModal = styled(Modal)`
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  right: auto;
+  bottom: auto;
+  margin-right: -50%;
+  transform: translate(-50%, -50%);
+  height: auto;
+  width: min(90%, 480px);
+  border: 1px solid ${({ theme }) => theme.stroke};
+  border-radius: 8px;
+  background-color: ${({ theme }) => theme.whiteBackground};
+  padding: 32px;
+  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
+  z-index: 10002;
+`;
+
+const Overlay = styled.div`
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: rgba(0, 0, 0, 0.5);
+  z-index: 10001;
+`;
+
+const Header = styled.div`
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 16px;
+`;
+
+const StyledWarningIcon = styled(WarningIcon)`
+  width: 24px;
+  height: 24px;
+  fill: ${({ theme }) => theme.warning};
+`;
+
+const Title = styled.h3`
+  color: ${({ theme }) => theme.primaryText};
+  font-size: 18px;
+  font-weight: 600;
+  margin: 0;
+`;
+
+const Message = styled.p`
+  color: ${({ theme }) => theme.primaryText};
+  font-size: 14px;
+  line-height: 1.5;
+  margin: 0 0 16px 0;
+`;
+
+const UrlContainer = styled.div`
+  background-color: ${({ theme }) => theme.lightGrey};
+  border: 1px solid ${({ theme }) => theme.stroke};
+  border-radius: 4px;
+  padding: 12px;
+  margin: 16px 0;
+  word-break: break-all;
+`;
+
+const Url = styled.code`
+  color: ${({ theme }) => theme.secondaryText};
+  font-size: 13px;
+  font-family: monospace;
+`;
+
+const ButtonContainer = styled.div`
+  display: flex;
+  gap: 12px;
+  justify-content: center;
+  flex-wrap: wrap;
+  margin-top: 24px;
+
+  ${landscapeStyle(
+    () => css`
+      justify-content: flex-end;
+    `
+  )}
+`;
+
+const CancelButton = styled(Button)`
+  background-color: ${({ theme }) => theme.whiteBackground};
+  border: 1px solid ${({ theme }) => theme.stroke};
+
+  p {
+    color: ${({ theme }) => theme.primaryText} !important;
+  }
+
+  &:hover {
+    background-color: ${({ theme }) => theme.mediumBlue};
+  }
+`;
+
+const ConfirmButton = styled(Button)`
+  background-color: ${({ theme }) => theme.warning};
+  color: ${({ theme }) => theme.whiteBackground};
+  border: 1px solid ${({ theme }) => theme.warning};
+
+  &:hover {
+    background-color: ${({ theme }) => theme.warning}BB;
+  }
+`;
+
+interface IExternalLinkWarning {
+  isOpen: boolean;
+  url: string;
+  onConfirm: () => void;
+  onCancel: () => void;
+}
+
+const ExternalLinkWarning: React.FC<IExternalLinkWarning> = ({ isOpen, url, onConfirm, onCancel }) => {
+  return (
+    <StyledModal
+      isOpen={isOpen}
+      onRequestClose={onCancel}
+      overlayElement={(props, contentElement) => <Overlay {...props}>{contentElement}</Overlay>}
+      ariaHideApp={false}
+      role="dialog"
+      aria-labelledby="external-link-title"
+      aria-describedby="external-link-description"
+    >
+      <Header>
+        <StyledWarningIcon />
+        <Title id="external-link-title">External Link Warning</Title>
+      </Header>
+
+      <Message id="external-link-description">
+        You are about to navigate to an external website. Please verify the URL before proceeding to ensure it&apos;s
+        safe and legitimate.
+      </Message>
+
+      <UrlContainer>
+        <Url>{url}</Url>
+      </UrlContainer>
+
+      <Message>
+        <strong>Safety Tips:</strong>
+        <br />
+        • Verify the domain name is correct
+        <br />
+        • Check for suspicious characters or typos
+        <br />• Only proceed if you trust this destination
+      </Message>
+
+      <ButtonContainer>
+        <CancelButton text="Cancel" onClick={onCancel} />
+        <ConfirmButton text="Continue to External Site" onClick={onConfirm} />
+      </ButtonContainer>
+    </StyledModal>
+  );
+};
+
+export default ExternalLinkWarning;

web/src/components/FileViewer/Viewers/MarkdownViewer.tsx

@@ -2,23 +2,14 @@ import React from "react";
 import styled from "styled-components";
 
 import { type DocRenderer } from "@cyntler/react-doc-viewer";
-import ReactMarkdown from "react-markdown";
+
+import MarkdownRenderer from "../../MarkdownRenderer";
 
 const Container = styled.div`
   padding: 16px;
 `;
 
-const StyledMarkdown = styled(ReactMarkdown)`
-  background-color: ${({ theme }) => theme.whiteBackground};
-  a {
-    font-size: 16px;
-  }
-  code {
-    color: ${({ theme }) => theme.secondaryText};
-  }
-`;
-
-const MarkdownRenderer: DocRenderer = ({ mainState: { currentDocument } }) => {
+const MarkdownDocRenderer: DocRenderer = ({ mainState: { currentDocument } }) => {
   if (!currentDocument) return null;
   const base64String = (currentDocument.fileData as string).split(",")[1];
 
@@ -27,12 +18,12 @@ const MarkdownRenderer: DocRenderer = ({ mainState: { currentDocument } }) => {
 
   return (
     <Container id="md-renderer">
-      <StyledMarkdown>{decodedData}</StyledMarkdown>
+      <MarkdownRenderer content={decodedData} />
     </Container>
   );
 };
 
-MarkdownRenderer.fileTypes = ["md", "text/plain"];
-MarkdownRenderer.weight = 1;
+MarkdownDocRenderer.fileTypes = ["md", "text/plain"];
+MarkdownDocRenderer.weight = 1;
 
-export default MarkdownRenderer;
+export default MarkdownDocRenderer;