feat: add code wrapping option on mobile devices (#3196)

* feat: add code wrapping option on mobile devices

* Minor changes

* oopsie

web/src/components/MemoContent/CodeBlock.tsx

+import { Checkbox } from "@mui/joy";
 import classNames from "classnames";
 import copy from "copy-to-clipboard";
 import hljs from "highlight.js";
+import { useCallback, useMemo, useState } from "react";
 import toast from "react-hot-toast";
+import useResponsiveWidth from "@/hooks/useResponsiveWidth";
+import { useTranslate } from "@/utils/i18n";
 import Icon from "../Icon";
 import MermaidBlock from "./MermaidBlock";
 import { BaseProps } from "./types";
@@ -18,7 +22,8 @@ interface Props extends BaseProps {
 }
 
 const CodeBlock: React.FC<Props> = ({ language, content }: Props) => {
-  const formatedLanguage = (language || "").toLowerCase() || "text";
+  const formatedLanguage = useMemo(() => (language || "").toLowerCase() || "text", [language]);
+
   // Users can set Markdown code blocks as `__html` to render HTML directly.
   if (formatedLanguage === SpecialLanguage.HTML) {
     return <div className="w-full overflow-auto !my-2" dangerouslySetInnerHTML={{ __html: content }} />;
@@ -26,37 +31,57 @@ const CodeBlock: React.FC<Props> = ({ language, content }: Props) => {
     return <MermaidBlock content={content} />;
   }
 
-  let highlightedCode = content;
-  try {
-    const lang = hljs.getLanguage(formatedLanguage);
-    if (lang) {
-      const temp = hljs.highlight(content, {
-        language: formatedLanguage,
-      }).value;
-      highlightedCode = temp;
+  const { md } = useResponsiveWidth();
+  const t = useTranslate();
+
+  const [wrap, setWrap] = useState(true);
+  const handleWrapChange = useCallback(() => setWrap(!wrap), [setWrap, wrap]);
+
+  const highlightedCode: string = useMemo(() => {
+    try {
+      const lang = hljs.getLanguage(formatedLanguage);
+      if (lang) {
+        return hljs.highlight(content, {
+          language: formatedLanguage,
+        }).value;
+      }
+    } catch (error) {
+      // Skip error and use default highlighted code.
     }
-  } catch (error) {
-    // Skip error and use default highlighted code.
-  }
 
-  const handleCopyButtonClick = () => {
+    return content;
+  }, [formatedLanguage, content]);
+
+  const handleCopyButtonClick = useCallback(() => {
     copy(content);
     toast.success("Copied to clipboard!");
-  };
+  }, [content]);
 
   return (
-    <div className="w-full my-1 bg-amber-100 border-l-4 border-amber-400 rounded overflow-clip hover:shadow dark:bg-zinc-600 dark:border-zinc-400">
+    <div className="w-full my-1 bg-amber-100 border-l-4 border-amber-400 rounded hover:shadow dark:bg-zinc-600 dark:border-zinc-400 relative">
       <div className="w-full px-2 py-1 flex flex-row justify-between items-center text-amber-500 dark:text-zinc-400">
         <span className="text-sm font-mono">{formatedLanguage}</span>
-        <Icon.Copy className="w-4 h-auto cursor-pointer hover:opacity-80" onClick={handleCopyButtonClick} />
+        {md && <Icon.Copy className="w-4 h-auto cursor-pointer hover:opacity-80" onClick={handleCopyButtonClick} />}
       </div>
 
-      <pre className="w-full p-2 bg-amber-50 dark:bg-zinc-700 whitespace-pre-wrap relative">
-        <code
-          className={classNames(`language-${formatedLanguage}`, "block text-sm leading-5")}
-          dangerouslySetInnerHTML={{ __html: highlightedCode }}
-        ></code>
-      </pre>
+      <div className="overflow-auto">
+        <pre
+          className={classNames(wrap ? "whitespace-pre-wrap" : "no-wrap overflow-auto", "w-full p-2 bg-amber-50 dark:bg-zinc-700 relative")}
+        >
+          <code
+            className={classNames(`language-${formatedLanguage}`, "block text-sm leading-5")}
+            dangerouslySetInnerHTML={{ __html: highlightedCode }}
+          ></code>
+        </pre>
+      </div>
+      {!md && (
+        <div className="sticky flex px-2 h-8 bottom-0 bg-amber-100 dark:bg-zinc-600 rounded items-center">
+          <div className="grow h-full">
+            <Checkbox className="h-full items-center" label={t("memo.wrapping")} size="sm" checked={wrap} onChange={handleWrapChange} />
+          </div>
+          <Icon.Copy className="w-4 h-full cursor-pointer hover:opacity-80" onClick={handleCopyButtonClick} />
+        </div>
+      )}
     </div>
   );
 };

web/src/locales/en.json

@@ -105,7 +105,8 @@
       "self": "Comments",
       "no-comment": "No comment"
     },
-    "show-more": "Show more"
+    "show-more": "Show more",
+    "wrapping": "Wrapping"
   },
   "reference": {
     "add-references": "Add references",

web/src/locales/ru.json

@@ -122,7 +122,8 @@
       "private": "Видно только вам",
       "protected": "Видно только пользователям",
       "public": "Видно всем"
-    }
+    },
+    "wrapping": "Перенос"
   },
   "message": {
     "change-memo-created-time": "Изменить время создания записи",