First working prototype of contract tab

package-lock.json

@@ -30,15 +30,18 @@
         "@types/react": "^17.0.19",
         "@types/react-blockies": "^1.4.1",
         "@types/react-dom": "^17.0.9",
+        "@types/react-highlight": "^0.12.3",
         "@types/react-router-dom": "^5.1.8",
         "chart.js": "^3.5.1",
         "ethers": "^5.4.1",
+        "highlightjs-solidity": "^1.2.0",
         "query-string": "^7.0.1",
         "react": "^17.0.2",
         "react-blockies": "^1.4.1",
         "react-chartjs-2": "^3.0.4",
         "react-dom": "^17.0.2",
         "react-error-boundary": "^3.1.3",
+        "react-highlight": "^0.14.0",
         "react-image": "^4.0.3",
         "react-router-dom": "^5.2.1",
         "react-scripts": "4.0.3",
@@ -3103,6 +3106,14 @@
         "@types/react": "*"
       }
     },
+    "node_modules/@types/react-highlight": {
+      "version": "0.12.3",
+      "resolved": "https://registry.npmjs.org/@types/react-highlight/-/react-highlight-0.12.3.tgz",
+      "integrity": "sha512-mfhuHdE3dUjvRv1lvZIvda2B+VW7rkG1ufnFLKbDcRUp/L73bGUmEuEfpnjgdLgeWYho88ahQZRcMSh9GsZA0g==",
+      "dependencies": {
+        "@types/react": "*"
+      }
+    },
     "node_modules/@types/react-router": {
       "version": "5.1.15",
       "resolved": "https://registry.npmjs.org/@types/react-router/-/react-router-5.1.15.tgz",
@@ -9207,6 +9218,19 @@
       "version": "1.1.0",
       "license": "MIT"
     },
+    "node_modules/highlight.js": {
+      "version": "10.7.3",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.7.3.tgz",
+      "integrity": "sha512-tzcUFauisWKNHaRkN4Wjl/ZA07gENAjFl3J/c480dprkGTg5EQstgaNFqBfUqCq54kZRIEcreTsAgF/m2quD7A==",
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/highlightjs-solidity": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/highlightjs-solidity/-/highlightjs-solidity-1.2.0.tgz",
+      "integrity": "sha512-KXYcVzBRof3CBWHsxGffsSEAJF0YsPaOk1jgIYv2xSzrBSxkfNUJFXrlE2oZEWvYQKbPqLe4qprJyNbSDV+LZA=="
+    },
     "node_modules/history": {
       "version": "4.10.1",
       "resolved": "https://registry.npmjs.org/history/-/history-4.10.1.tgz",
@@ -14419,6 +14443,18 @@
       "version": "6.0.9",
       "license": "MIT"
     },
+    "node_modules/react-highlight": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/react-highlight/-/react-highlight-0.14.0.tgz",
+      "integrity": "sha512-kWE+KXOXidS7SABhVopOgMnowbI3RAfeGZbnrduLNlWrYAED8sycL9l/Fvw3w0PFpIIawB7mRDnyhDcM/cIIGA==",
+      "dependencies": {
+        "highlight.js": "^10.5.0"
+      },
+      "peerDependencies": {
+        "react": "^15.0.0 || ^16.0.0 || ^17.0.0",
+        "react-dom": "^15.0.0 || ^16.0.0 || ^17.0.0"
+      }
+    },
     "node_modules/react-image": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/react-image/-/react-image-4.0.3.tgz",
@@ -21465,6 +21501,14 @@
         "@types/react": "*"
       }
     },
+    "@types/react-highlight": {
+      "version": "0.12.3",
+      "resolved": "https://registry.npmjs.org/@types/react-highlight/-/react-highlight-0.12.3.tgz",
+      "integrity": "sha512-mfhuHdE3dUjvRv1lvZIvda2B+VW7rkG1ufnFLKbDcRUp/L73bGUmEuEfpnjgdLgeWYho88ahQZRcMSh9GsZA0g==",
+      "requires": {
+        "@types/react": "*"
+      }
+    },
     "@types/react-router": {
       "version": "5.1.15",
       "resolved": "https://registry.npmjs.org/@types/react-router/-/react-router-5.1.15.tgz",
@@ -25605,6 +25649,16 @@
     "hex-color-regex": {
       "version": "1.1.0"
     },
+    "highlight.js": {
+      "version": "10.7.3",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.7.3.tgz",
+      "integrity": "sha512-tzcUFauisWKNHaRkN4Wjl/ZA07gENAjFl3J/c480dprkGTg5EQstgaNFqBfUqCq54kZRIEcreTsAgF/m2quD7A=="
+    },
+    "highlightjs-solidity": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/highlightjs-solidity/-/highlightjs-solidity-1.2.0.tgz",
+      "integrity": "sha512-KXYcVzBRof3CBWHsxGffsSEAJF0YsPaOk1jgIYv2xSzrBSxkfNUJFXrlE2oZEWvYQKbPqLe4qprJyNbSDV+LZA=="
+    },
     "history": {
       "version": "4.10.1",
       "resolved": "https://registry.npmjs.org/history/-/history-4.10.1.tgz",
@@ -29065,6 +29119,14 @@
     "react-error-overlay": {
       "version": "6.0.9"
     },
+    "react-highlight": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/react-highlight/-/react-highlight-0.14.0.tgz",
+      "integrity": "sha512-kWE+KXOXidS7SABhVopOgMnowbI3RAfeGZbnrduLNlWrYAED8sycL9l/Fvw3w0PFpIIawB7mRDnyhDcM/cIIGA==",
+      "requires": {
+        "highlight.js": "^10.5.0"
+      }
+    },
     "react-image": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/react-image/-/react-image-4.0.3.tgz",

package.json

@@ -25,15 +25,18 @@
     "@types/react": "^17.0.19",
     "@types/react-blockies": "^1.4.1",
     "@types/react-dom": "^17.0.9",
+    "@types/react-highlight": "^0.12.3",
     "@types/react-router-dom": "^5.1.8",
     "chart.js": "^3.5.1",
     "ethers": "^5.4.1",
+    "highlightjs-solidity": "^1.2.0",
     "query-string": "^7.0.1",
     "react": "^17.0.2",
     "react-blockies": "^1.4.1",
     "react-chartjs-2": "^3.0.4",
     "react-dom": "^17.0.2",
     "react-error-boundary": "^3.1.3",
+    "react-highlight": "^0.14.0",
     "react-image": "^4.0.3",
     "react-router-dom": "^5.2.1",
     "react-scripts": "4.0.3",

src/AddressTransactions.tsx

@@ -1,5 +1,11 @@
 import React, { useState, useEffect, useMemo, useContext } from "react";
-import { useParams, useLocation, useHistory } from "react-router-dom";
+import {
+  useParams,
+  useLocation,
+  useHistory,
+  Switch,
+  Route,
+} from "react-router-dom";
 import { BlockTag } from "@ethersproject/abstract-provider";
 import { getAddress, isAddress } from "@ethersproject/address";
 import queryString from "query-string";
@@ -8,6 +14,9 @@ import StandardFrame from "./StandardFrame";
 import StandardSubtitle from "./StandardSubtitle";
 import Copy from "./components/Copy";
 import ContentFrame from "./ContentFrame";
+import TabGroup from "./components/TabGroup";
+import Tab from "./components/Tab";
+import Contract from "./address/Contract";
 import UndefinedPageControl from "./search/UndefinedPageControl";
 import ResultHeader from "./search/ResultHeader";
 import PendingResults from "./search/PendingResults";
@@ -194,7 +203,15 @@ const AddressTransactions: React.FC = () => {
                 )}
               </div>
             </StandardSubtitle>
-            <ContentFrame>
+            <TabGroup>
+              <Tab href={`/address/${checksummedAddress}`}>Overview</Tab>
+              <Tab href={`/address/${checksummedAddress}/contract`}>
+                Contract
+              </Tab>
+            </TabGroup>
+            <Switch>
+              <Route path="/address/:addressOrName" exact>
+                <ContentFrame tabs>
                   <div className="flex justify-between items-baseline py-3">
                     <div className="text-sm text-gray-500">
                       {page === undefined ? (
@@ -230,23 +247,35 @@ const AddressTransactions: React.FC = () => {
                       ))}
                       <div className="flex justify-between items-baseline py-3">
                         <div className="text-sm text-gray-500">
-                      {page !== undefined && (
+                          {page === undefined ? (
+                            <>Waiting for search results...</>
+                          ) : (
                             <>{page.length} transactions on this page</>
                           )}
                         </div>
                         <UndefinedPageControl
                           address={params.addressOrName}
-                      isFirst={controller.isFirst}
+                          isFirst={controller?.isFirst}
-                      isLast={controller.isLast}
+                          isLast={controller?.isLast}
                           prevHash={page ? page[0].hash : ""}
                           nextHash={page ? page[page.length - 1].hash : ""}
+                          disabled={controller === undefined}
                         />
                       </div>
+                      <ResultHeader
+                        feeDisplay={feeDisplay}
+                        feeDisplayToggler={feeDisplayToggler}
+                      />
                     </SelectionContext.Provider>
                   ) : (
                     <PendingResults />
                   )}
                 </ContentFrame>
+              </Route>
+              <Route path="/address/:addressOrName/contract" exact>
+                <Contract checksummedAddress={checksummedAddress} />
+              </Route>
+            </Switch>
           </>
         )
       )}

src/Transaction.tsx

@@ -3,6 +3,7 @@ import { Route, Switch, useParams } from "react-router-dom";
 import StandardFrame from "./StandardFrame";
 import StandardSubtitle from "./StandardSubtitle";
 import ContentFrame from "./ContentFrame";
+import TabGroup from "./components/TabGroup";
 import Tab from "./components/Tab";
 import Details from "./transaction/Details";
 import Logs from "./transaction/Logs";
@@ -55,14 +56,14 @@ const Transaction: React.FC = () => {
       )}
       {txData && (
         <SelectionContext.Provider value={selectionCtx}>
-          <div className="flex space-x-2 border-l border-r border-t rounded-t-lg bg-white">
+          <TabGroup>
             <Tab href={`/tx/${txhash}`}>Overview</Tab>
             {txData.confirmedData?.blockNumber !== undefined && (
               <Tab href={`/tx/${txhash}/logs`}>
                 Logs{txData && ` (${txData.confirmedData?.logs?.length ?? 0})`}
               </Tab>
             )}
-          </div>
+          </TabGroup>
           <Switch>
             <Route path="/tx/:txhash/" exact>
               <Details

src/address/Contract.tsx

@@ -0,0 +1,76 @@
+import React, { useState, useEffect } from "react";
+import ContentFrame from "../ContentFrame";
+import Highlight from "react-highlight";
+
+import "highlight.js/styles/stackoverflow-light.css";
+import hljs from "highlight.js";
+import hljsDefineSolidity from "highlightjs-solidity";
+hljsDefineSolidity(hljs);
+hljs.initHighlightingOnLoad();
+
+type ContractProps = {
+  checksummedAddress: string;
+};
+
+const Contract: React.FC<ContractProps> = ({ checksummedAddress }) => {
+  const [sources, setSources] = useState<
+    { [fileName: string]: any } | undefined | null
+  >(undefined);
+  useEffect(() => {
+    if (!checksummedAddress) {
+      return;
+    }
+
+    const fetchMetadata = async () => {
+      try {
+        const result = await fetch(
+          `https://repo.sourcify.dev/contracts/full_match/1/${checksummedAddress}/metadata.json`
+        );
+        if (result.ok) {
+          const json = await result.json();
+          console.log(json);
+          setSources(json.sources);
+          setSelected(Object.keys(json.sources)[0]);
+        } else {
+          setSources(null);
+        }
+      } catch (err) {
+        console.error(err);
+        setSources(null);
+      }
+    };
+    fetchMetadata();
+  }, [checksummedAddress]);
+
+  const [selected, setSelected] = useState<string>();
+
+  return (
+    <ContentFrame tabs>
+      <div className="py-5">
+        {sources === null && (
+          <span>Couldn't find contract metadata in Sourcify repository.</span>
+        )}
+        {sources !== undefined && sources !== null && (
+          <>
+            {Object.entries(sources).map(([k]) => (
+              <button
+                className={`border-b-2 border-transparent rounded-t text-sm px-2 py-1 bg-gray-200 text-gray-500 ${
+                  selected === k ? "border-orange-300 font-bold" : ""
+                }`}
+              >
+                {k}
+              </button>
+            ))}
+            {selected && (
+              <Highlight className="w-full h-full border focus:outline-none font-code text-base">
+                {sources[selected].content}
+              </Highlight>
+            )}
+          </>
+        )}
+      </div>
+    </ContentFrame>
+  );
+};
+
+export default React.memo(Contract);

src/components/TabGroup.tsx

@@ -0,0 +1,7 @@
+const TabGroup: React.FC = ({ children }) => (
+  <div className="flex space-x-2 border-l border-r border-t rounded-t-lg bg-white">
+    {children}
+  </div>
+);
+
+export default TabGroup;

src/react-app-env.d.ts

@@ -1,2 +1,3 @@
 /// <reference types="react-scripts" />
 declare module "use-keyboard-shortcut";
+declare module "highlightjs-solidity";

tailwind.config.js

@@ -27,6 +27,7 @@ module.exports = {
         data: ["Roboto Mono"],
         balance: ["Fira Code"],
         blocknum: ["Roboto"],
+        code: ["Fira Code"],
       },
       borderColor: {
         skin: {