feat: copy code, code highlight

package-lock.json

@@ -13,6 +13,7 @@
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         "react-markdown": "^8.0.3",
         "react-router-dom": "^6.4.2",
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         "remark-math": "^5.1.1"
       },
@@ -392,6 +393,17 @@
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+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.21.0.tgz",
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@@ -917,6 +929,24 @@
         "url": "https://github.com/sponsors/wooorm"
       }
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+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
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@@ -1664,6 +1694,18 @@
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+      "resolved": "https://registry.npmjs.org/fault/-/fault-1.0.4.tgz",
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+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
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@@ -1689,6 +1731,14 @@
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@@ -1851,6 +1901,14 @@
         "url": "https://opencollective.com/unified"
       }
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+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
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+        "is-decimal": "^1.0.0"
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@@ -1949,6 +2029,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
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+      "resolved": "https://registry.npmjs.org/is-decimal/-/is-decimal-1.0.4.tgz",
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+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
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@@ -1970,6 +2059,15 @@
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       }
     },
+    "node_modules/is-hexadecimal": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-hexadecimal/-/is-hexadecimal-1.0.4.tgz",
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+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
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@@ -2144,6 +2242,19 @@
         "loose-envify": "cli.js"
       }
     },
+    "node_modules/lowlight": {
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/lowlight/-/lowlight-1.20.0.tgz",
+      "integrity": "sha512-8Ktj+prEb1RoCPkEOrPMYUN/nCggB7qAWe3a7OpMjWQkh3l2RD5wKRQ+o8Q8YuI9RG/xs95waaI/E6ym/7NsTw==",
+      "dependencies": {
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+        "highlight.js": "~10.7.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
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@@ -2866,6 +2977,32 @@
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+        "url": "https://github.com/sponsors/wooorm"
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@@ -3039,6 +3176,14 @@
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@@ -3210,6 +3355,21 @@
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@@ -3231,6 +3391,88 @@
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@@ -4281,6 +4522,14 @@
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@@ -5247,6 +5519,11 @@
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+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-alphabetical/-/is-alphabetical-1.0.4.tgz",
+      "integrity": "sha512-DwzsA04LQ10FHTZuL0/grVDk4rFoVH1pjAToYwBrHSxcrBIGQuXrQMtD5U1b0U2XVgKZCTLLP8u2Qxqhy3l2Vg=="
+    },
+    "is-alphanumerical": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-alphanumerical/-/is-alphanumerical-1.0.4.tgz",
+      "integrity": "sha512-UzoZUr+XfVz3t3v4KyGEniVL9BDRoQtY7tOyrRybkVNjDFWyo1yhXNGrrBTQxp3ib9BLAWs7k2YKBQsFRkZG9A==",
+      "requires": {
+        "is-alphabetical": "^1.0.0",
+        "is-decimal": "^1.0.0"
+      }
+    },
     "is-binary-path": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
@@ -5310,6 +5601,11 @@
         "has": "^1.0.3"
       }
     },
+    "is-decimal": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-decimal/-/is-decimal-1.0.4.tgz",
+      "integrity": "sha512-RGdriMmQQvZ2aqaQq3awNA6dCGtKpiDFcOzrTWrDAT2MiWrKQVPmxLGHl7Y2nNu6led0kEyoX0enY0qXYsv9zw=="
+    },
     "is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -5325,6 +5621,11 @@
         "is-extglob": "^2.1.1"
       }
     },
+    "is-hexadecimal": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-hexadecimal/-/is-hexadecimal-1.0.4.tgz",
+      "integrity": "sha512-gyPJuv83bHMpocVYoqof5VDiZveEoGoFL8m3BXNb2VW8Xs+rz9kqO8LOQ5DH6EsuvilT1ApazU0pyl+ytbPtlw=="
+    },
     "is-number": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
@@ -5440,6 +5741,15 @@
         "js-tokens": "^3.0.0 || ^4.0.0"
       }
     },
+    "lowlight": {
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/lowlight/-/lowlight-1.20.0.tgz",
+      "integrity": "sha512-8Ktj+prEb1RoCPkEOrPMYUN/nCggB7qAWe3a7OpMjWQkh3l2RD5wKRQ+o8Q8YuI9RG/xs95waaI/E6ym/7NsTw==",
+      "requires": {
+        "fault": "^1.0.0",
+        "highlight.js": "~10.7.0"
+      }
+    },
     "magic-string": {
       "version": "0.26.7",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.26.7.tgz",
@@ -5878,6 +6188,26 @@
         "word-wrap": "~1.2.3"
       }
     },
+    "parse-entities": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/parse-entities/-/parse-entities-2.0.0.tgz",
+      "integrity": "sha512-kkywGpCcRYhqQIchaWqZ875wzpS/bMKhz5HnN3p7wveJTkTtyAB/AlnS0f8DFSqYW1T82t6yEAkEcB+A1I3MbQ==",
+      "requires": {
+        "character-entities": "^1.0.0",
+        "character-entities-legacy": "^1.0.0",
+        "character-reference-invalid": "^1.0.0",
+        "is-alphanumerical": "^1.0.0",
+        "is-decimal": "^1.0.0",
+        "is-hexadecimal": "^1.0.0"
+      },
+      "dependencies": {
+        "character-entities": {
+          "version": "1.2.4",
+          "resolved": "https://registry.npmjs.org/character-entities/-/character-entities-1.2.4.tgz",
+          "integrity": "sha512-iBMyeEHxfVnIakwOuDXpVkc54HijNgCyQB2w0VfGQThle6NXn50zU6V/u+LDhxHcDUPojn6Kpga3PTAD8W1bQw=="
+        }
+      }
+    },
     "parse5": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/parse5/-/parse5-6.0.1.tgz",
@@ -5978,6 +6308,11 @@
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz",
       "integrity": "sha512-ESF23V4SKG6lVSGZgYNpbsiaAkdab6ZgOxe52p7+Kid3W3u3bxR4Vfd/o21dmN7jSt0IwgZ4v5MUd26FEtXE9w=="
     },
+    "prismjs": {
+      "version": "1.29.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.29.0.tgz",
+      "integrity": "sha512-Kx/1w86q/epKcmte75LNrEoT+lX8pBpavuAbvJWRXar7Hz8jrtF+e3vY751p0R8H9HdArwaCTNDDzHg/ScJK1Q=="
+    },
     "prop-types": {
       "version": "15.8.1",
       "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
@@ -6094,6 +6429,18 @@
         "react-router": "6.4.2"
       }
     },
+    "react-syntax-highlighter": {
+      "version": "15.5.0",
+      "resolved": "https://registry.npmjs.org/react-syntax-highlighter/-/react-syntax-highlighter-15.5.0.tgz",
+      "integrity": "sha512-+zq2myprEnQmH5yw6Gqc8lD55QHnpKaU8TOcFeC/Lg/MQSs8UknEA0JC4nTZGFAXC2J2Hyj/ijJ7NlabyPi2gg==",
+      "requires": {
+        "@babel/runtime": "^7.3.1",
+        "highlight.js": "^10.4.1",
+        "lowlight": "^1.17.0",
+        "prismjs": "^1.27.0",
+        "refractor": "^3.6.0"
+      }
+    },
     "read-cache": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/read-cache/-/read-cache-1.0.0.tgz",
@@ -6112,6 +6459,63 @@
         "picomatch": "^2.2.1"
       }
     },
+    "refractor": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/refractor/-/refractor-3.6.0.tgz",
+      "integrity": "sha512-MY9W41IOWxxk31o+YvFCNyNzdkc9M20NoZK5vq6jkv4I/uh2zkWcfudj0Q1fovjUQJrNewS9NMzeTtqPf+n5EA==",
+      "requires": {
+        "hastscript": "^6.0.0",
+        "parse-entities": "^2.0.0",
+        "prismjs": "~1.27.0"
+      },
+      "dependencies": {
+        "comma-separated-tokens": {
+          "version": "1.0.8",
+          "resolved": "https://registry.npmjs.org/comma-separated-tokens/-/comma-separated-tokens-1.0.8.tgz",
+          "integrity": "sha512-GHuDRO12Sypu2cV70d1dkA2EUmXHgntrzbpvOB+Qy+49ypNfGgFQIC2fhhXbnyrJRynDCAARsT7Ou0M6hirpfw=="
+        },
+        "hast-util-parse-selector": {
+          "version": "2.2.5",
+          "resolved": "https://registry.npmjs.org/hast-util-parse-selector/-/hast-util-parse-selector-2.2.5.tgz",
+          "integrity": "sha512-7j6mrk/qqkSehsM92wQjdIgWM2/BW61u/53G6xmC8i1OmEdKLHbk419QKQUjz6LglWsfqoiHmyMRkP1BGjecNQ=="
+        },
+        "hastscript": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/hastscript/-/hastscript-6.0.0.tgz",
+          "integrity": "sha512-nDM6bvd7lIqDUiYEiu5Sl/+6ReP0BMk/2f4U/Rooccxkj0P5nm+acM5PrGJ/t5I8qPGiqZSE6hVAwZEdZIvP4w==",
+          "requires": {
+            "@types/hast": "^2.0.0",
+            "comma-separated-tokens": "^1.0.0",
+            "hast-util-parse-selector": "^2.0.0",
+            "property-information": "^5.0.0",
+            "space-separated-tokens": "^1.0.0"
+          }
+        },
+        "prismjs": {
+          "version": "1.27.0",
+          "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.27.0.tgz",
+          "integrity": "sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA=="
+        },
+        "property-information": {
+          "version": "5.6.0",
+          "resolved": "https://registry.npmjs.org/property-information/-/property-information-5.6.0.tgz",
+          "integrity": "sha512-YUHSPk+A30YPv+0Qf8i9Mbfe/C0hdPXk1s1jPVToV8pk8BQtpw10ct89Eo7OWkutrwqvT0eicAxlOg3dOAu8JA==",
+          "requires": {
+            "xtend": "^4.0.0"
+          }
+        },
+        "space-separated-tokens": {
+          "version": "1.1.5",
+          "resolved": "https://registry.npmjs.org/space-separated-tokens/-/space-separated-tokens-1.1.5.tgz",
+          "integrity": "sha512-q/JSVd1Lptzhf5bkYm4ob4iWPjx0KiRe3sRFBNrVqbJkFaBm5vbbowy1mymoPNLRa52+oadOhJ+K49wsSeSjTA=="
+        }
+      }
+    },
+    "regenerator-runtime": {
+      "version": "0.13.11",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
+      "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg=="
+    },
     "rehype-mathjax": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/rehype-mathjax/-/rehype-mathjax-4.0.2.tgz",
@@ -6625,8 +7029,7 @@
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
-      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
-      "dev": true
     },
     "yaml": {
       "version": "1.10.2",

package.json

@@ -14,6 +14,7 @@
     "react-dom": "^18.2.0",
     "react-markdown": "^8.0.3",
     "react-router-dom": "^6.4.2",
+    "react-syntax-highlighter": "^15.5.0",
     "rehype-mathjax": "^4.0.2",
     "remark-math": "^5.1.1"
   },

src/components/checkbox.jsx

@@ -2,7 +2,7 @@ function CheckBox(props) {
   return (
     <div className={`form-check m-5 ${props.className}`}>
       <input
-        className="form-check-input appearance-none h-3 w-6 duration-500 checked:bg-blue-600 checked:border-blue-600 pr-3 border border-gray-300 rounded-lg mr-1 checked:shadow-lg checked:shadow-blue-600 transition ease-out"
+        className="form-check-input appearance-none h-3 w-6 duration-500 checked:bg-blue-600 checked:border-blue-600 pr-3 border border-gray-300 rounded-lg mr-1 checked:shadow-lg checked:shadow-blue-600 transition ease-out cursor-pointer"
         type="checkbox"
         id={props.id}
         defaultChecked={props.checked}
@@ -11,7 +11,7 @@ function CheckBox(props) {
       />
       <label
         title={props.title}
-        className="form-check-label inline-block"
+        className="form-check-label inline-block cursor-pointer"
         htmlFor={props.id}
       >
         {props.label}

src/components/copytocb.jsx

@@ -6,7 +6,6 @@ function CopyToClipboard(props) {
   let [copied, setCopied] = useState(false);
 
   useEffect(() => {
-    console.log(copied);
     if (copied === true) {
       setTimeout(() => {
         setCopied(false);
@@ -23,6 +22,36 @@ function CopyToClipboard(props) {
       }}
     >
       <div className="col-span-3 truncate">{props.text}</div>
+      <div className="justify-self-center lg:justify-self-end cursor-pointer">
+        {copied === true ? (
+          <CheckIcon className="transform translate-z-0 h-7 w-7" />
+        ) : (
+          <ClipboardIcon className="transform translate-z-0 h-7 w-7" />
+        )}
+      </div>
+    </div>
+  );
+}
+
+function CodeCopyBtn(props) {
+  let [copied, setCopied] = useState(false);
+
+  useEffect(() => {
+    if (copied === true) {
+      setTimeout(() => {
+        setCopied(false);
+      }, 1000);
+    }
+  });
+
+  return (
+    <div
+      className="code-copy-btn"
+      onClick={() => {
+        navigator.clipboard.writeText(props.children[0].props.children[0]);
+        setCopied(true);
+      }}
+    >
       <div className="justify-self-center lg:justify-self-end">
         {copied === true ? (
           <CheckIcon className="transform translate-z-0 h-7 w-7" />
@@ -34,4 +63,4 @@ function CopyToClipboard(props) {
   );
 }
 
-export { CopyToClipboard };
+export { CopyToClipboard, CodeCopyBtn };

src/components/markdown.jsx

@@ -2,14 +2,47 @@ import rehypeMathjax from "rehype-mathjax";
 import remarkMath from "remark-math";
 import ReactMarkdown from "react-markdown";
 
+import SyntaxHighlighter from "react-syntax-highlighter";
+import { darcula, github } from "react-syntax-highlighter/dist/esm/styles/hljs";
+
+import { CodeCopyBtn } from "./copytocb";
+
+let theme = window.matchMedia("(prefers-color-scheme: dark)").matches
+  ? "dark"
+  : "light";
+
+function CodeBlock(props) {
+  return (
+    <SyntaxHighlighter
+      className={`md-code ${props.className}`}
+      style={theme == "light" ? github : darcula}
+    >
+      {props.children[0]}
+    </SyntaxHighlighter>
+  );
+}
+
 function RenderMarkdown(props) {
   return (
     <ReactMarkdown
       children={props.children}
       remarkPlugins={[remarkMath]}
       rehypePlugins={[rehypeMathjax]}
+      components={{
+        code: CodeBlock,
+        pre: Pre,
+      }}
     />
   );
 }
 
+function Pre({ children }) {
+  return (
+    <pre className="blog-pre">
+      <CodeCopyBtn>{children}</CodeCopyBtn>
+      {children}
+    </pre>
+  );
+}
+
 export default RenderMarkdown;

src/index.css

@@ -3,8 +3,9 @@
 @tailwind utilities;
 
 
-/* styles for displaying markdown */
+
 @layer base {
+  /* styles for displaying markdown */
   .md h1 {
     @apply text-6xl;
   }
@@ -28,6 +29,7 @@
     @apply border-l-4 pl-2 rounded-lg ml-4 mt-2 mb-2;
     @apply bg-zinc-200 border-zinc-400;
     @apply dark:bg-zinc-800 dark:border-zinc-600;
+    @apply pb-2;
   }
 
   .md hr {
@@ -50,7 +52,7 @@
     @apply list-decimal list-inside ml-4;
   }
 
-  .md code {
+  .md-code {
     @apply p-1;
     @apply rounded-lg;
     @apply bg-zinc-200 border-zinc-400;
@@ -66,4 +68,21 @@
   }
 
   .md p, .math-inline { display: inline-block; }
+  .md li p {
+    display: inline;
+  }
+
+  /* other styles */
+
+  .blog-pre {
+    @apply mt-2 mb-2 relative;
+  }
+  
+  .code-copy-btn {
+    @apply text-zinc-400 dark:text-zinc-300 absolute right-2 top-2 cursor-pointer;
+  }
+  
+  .code-copy-btn:hover {
+    @apply text-zinc-500 dark:text-zinc-400;
+  }
 }

src/pages/create.jsx

@@ -3,6 +3,7 @@ import { ChevronDoubleRightIcon } from "@heroicons/react/24/outline";
 import { CheckBox } from "../components/checkbox";
 import { useState } from "react";
 import RenderMarkdown from "../components/markdown";
+import printDate from "../components/utils";
 
 function CreateNote() {
   const [preview, setPreview] = useState(false);
@@ -10,12 +11,20 @@ function CreateNote() {
   const [text, setText] = useState(localStorage.getItem("NoteText"));
   const [name, setName] = useState(localStorage.getItem("NoteName"));
 
+  const [date, setDate] = useState(Date.now());
+
+  setInterval(() => {
+    if (preview) {
+      setDate(Date.now());
+    }
+  }, 1000);
+
   let inputStyle = `form-control block px-3 py-1.5 text-base font-normal text-gray-700 dark:text-white bg-white dark:bg-zinc-900 bg-clip-padding border border-solid border-gray-300 rounded-lg transition ease-in-out focus:border-blue-600 focus:outline-none`;
   return (
     <div>
       <div className="grid grid-cols-1 lg:grid-cols-2">
         <h2 className="font-medium text-center lg:text-left leading-tight text-4xl mt-0 mb-2">
-          Написать заметку
+          {`${preview ? "" : "Написать заметку"}`}
         </h2>
         <CheckBox
           className="justify-self-center lg:justify-self-end"
@@ -27,13 +36,15 @@ function CreateNote() {
 
       <input
         type="text"
-        className={`mb-2 md:w-1/6 w-full ${inputStyle}`}
+        className={`mb-2 md:w-1/6 w-full ${inputStyle} ${
+          preview ? "hidden" : ""
+        }`}
         placeholder="Название заметки..."
         maxLength={64}
         value={localStorage.getItem("NoteName") || ""}
         onChange={(e) => {
-          localStorage.setItem("NoteName", e.target.value);
           setName(e.target.value);
+          localStorage.setItem("NoteName", e.target.value);
         }}
       />
       <textarea
@@ -46,12 +57,22 @@ function CreateNote() {
         placeholder="Ваша заметка начинается здесь. Можно использовать markdown..."
         maxLength={5000}
         onChange={(e) => {
-          localStorage.setItem("NoteText", e.target.value);
           setText(e.target.value);
+          localStorage.setItem("NoteText", e.target.value);
         }}
         value={localStorage.getItem("NoteText") || ""}
       ></textarea>
 
+      {preview && (
+        <div className="grid grid-cols-1 lg:grid-cols-2">
+          <h2 className="font-medium text-center lg:text-left leading-tight text-4xl mt-0 mb-2">
+            {name}
+          </h2>
+          <div className="justify-self-center lg:justify-self-end">
+            {printDate(Date.now())}
+          </div>
+        </div>
+      )}
       {preview && (
         <div className="w-full md break-words">
           <RenderMarkdown>{text}</RenderMarkdown>
@@ -80,7 +101,7 @@ function CreateNote() {
                 <ChevronDoubleRightIcon className="transform translate-z-0 h-7 w-7" />
               }
             >
-              Отправить
+              {publicState ? "Сохранить" : "Опубликовать"}
             </IconWithText>
           </Button>
         </div>

src/pages/pubError.jsx

@@ -1,8 +1,12 @@
 import printDate from "../components/utils";
 import { ChevronDoubleLeftIcon } from "@heroicons/react/24/outline";
 import { Button, IconWithText } from "../components/button";
+import { useSearchParams } from "react-router-dom";
 
 function PubError() {
+  const [searchParams] = useSearchParams();
+  let err = searchParams.get("err");
+
   return (
     <div className="">
       <Button className="mb-4" href="/">
@@ -24,7 +28,7 @@ function PubError() {
           </div>
         </div>
         <div className="w-full md">
-          Заметка не была опубликована из-за неизвестной ошибки
+          {err ? err : "Заметка не была опубликована из-за неизвестной ошибки"}
         </div>
       </div>
     </div>

src/pages/publish.jsx

@@ -9,11 +9,19 @@ function Publish() {
     if (!done) {
       done = true;
 
+      let err = false;
       const note = {
         name: localStorage.getItem("NoteName"),
         text: localStorage.getItem("NoteText"),
       };
 
+      if (!note.name) {
+        err = "Заметка не была опубликована, так как отсутствует название.";
+      }
+      if (!note.text) {
+        err = "Заметка не была опубликована, так как отсутствует текст.";
+      }
+
       fetch(`/publish`, {
         method: "POST",
         headers: {
@@ -30,7 +38,7 @@ function Publish() {
               navigate(`/pubNotesSafe/${data.id}`, { replace: true });
             })
             .catch(() => {
-              navigate(`/pubError`, { replace: true });
+              navigate(`/pubError?err=${err}`, { replace: true });
             });
         })
         .catch(() => {