ui: switch storage to indexeddb

packages/ui-default/components/scratchpad/reducers/editor.ts

@@ -1,6 +1,7 @@
 let cacheKey = `${UserContext._id}/${UiContext.pdoc.domainId}/${UiContext.pdoc.docId}`;
 if (UiContext.tdoc?._id && UiContext.tdoc.rule !== 'homework') cacheKey += `@${UiContext.tdoc._id}`;
 
+// TODO switch to indexeddb
 export default function reducer(state = {
   lang: localStorage.getItem(`${cacheKey}#lang`) || UiContext.codeLang,
   code: localStorage.getItem(cacheKey) || UiContext.codeTemplate,

packages/ui-default/components/socket/index.ts

@@ -54,6 +54,10 @@ export default class Sock {
   onclose: (code: number, reason: string) => void;
   onopen: (sock: ReconnectingWebSocket) => void;
 
+  on(event: 'message' | 'close' | 'open', callback: (...args: any[]) => void) {
+    this[`on${event}`] = callback;
+  }
+
   send(data) {
     this.sock.send(data);
   }

packages/ui-default/package.json

@@ -14,8 +14,8 @@
     "cli": false
   },
   "devDependencies": {
-    "@blueprintjs/core": "^5.10.3",
+    "@blueprintjs/core": "^5.10.4",
-    "@cordisjs/core": "^3.17.3",
+    "@cordisjs/core": "3.17.3",
     "@fontsource/dm-mono": "^5.0.20",
     "@fontsource/fira-code": "^5.0.18",
     "@fontsource/inconsolata": "^5.0.18",
@@ -31,6 +31,7 @@
     "@svgr/webpack": "^8.1.0",
     "@types/gulp-if": "^0.0.34",
     "@types/jquery": "^3.5.30",
+    "@types/jquery.transit": "^0.9.33",
     "@types/json-schema": "^7.0.15",
     "@types/katex": "^0.16.7",
     "@types/markdown-it": "^14.1.1",
@@ -40,7 +41,7 @@
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
     "@types/redux-logger": "^3.0.13",
-    "@types/uuid": "^10",
+    "@types/uuid": "^10.0.0",
     "@types/webpack-env": "^1.18.5",
     "@vscode/codicons": "^0.0.36",
     "ajv": "^8.16.0",
@@ -69,12 +70,13 @@
     "gulp-if": "^3.0.0",
     "gulp-plumber": "^1.2.1",
     "gulp-svgmin": "^4.1.0",
+    "idb": "^8.0.0",
     "jquery": "^3.7.1",
     "jquery-scroll-lock": "^3.1.3",
     "jquery.easing": "^1.4.1",
     "jquery.transit": "^0.9.12",
     "matchmedia-polyfill": "^0.3.2",
-    "md-editor-rt": "^4.17.0",
+    "md-editor-rt": "^4.17.1",
     "mini-css-extract-plugin": "^2.9.0",
     "moment": "^2.30.1",
     "monaco-editor": "0.50.0",
@@ -135,7 +137,7 @@
     "fs-extra": "^11.2.0",
     "js-yaml": "^4.1.0",
     "jsesc": "^3.0.2",
-    "katex": "^0.16.10",
+    "katex": "^0.16.11",
     "lodash": "^4.17.21",
     "markdown-it": "^14.1.0",
     "markdown-it-anchor": "^9.0.1",

packages/ui-default/pages/contest_scoreboard.page.ts

@@ -1,17 +1,19 @@
 import $ from 'jquery';
 import { NamedPage } from 'vj/misc/Page';
 import { pjax } from 'vj/utils';
+import { openDB } from 'vj/utils/db';
 
-const page = new NamedPage(['contest_scoreboard', 'homework_scoreboard'], () => {
+const page = new NamedPage(['contest_scoreboard', 'homework_scoreboard'], async () => {
+  const db = await openDB;
   const { tdoc } = UiContext;
-  const key = `scoreboard-star/${tdoc.domainId}/${tdoc.docId}`;
+  const id = `${tdoc.domainId}/${tdoc.docId}`;
-  const read = () => JSON.parse(localStorage.getItem(key) || '[]');
+  const read = async () => (await db.get('scoreboard-star', id)).value || [];
-  const write = (data) => localStorage.setItem(key, JSON.stringify(data));
+  const write = (data) => db.put('scoreboard-star', { id, data });
 
   $(`.star.user--${UserContext._id}`).closest('tr').addClass('star-highlight');
-  read().forEach((uid) => $(`.star.user--${uid}`).addClass('activated').closest('tr').addClass('star-highlight'));
+  (await read()).forEach((uid) => $(`.star.user--${uid}`).addClass('activated').closest('tr').addClass('star-highlight'));
-  $('.star').on('click', (e) => {
+  $('.star').on('click', async (e) => {
-    const star = read();
+    const star = await read();
     const $target = $(e.currentTarget);
     const uid = $target.data('uid');
     if (star.includes(uid)) {
@@ -24,14 +26,14 @@ const page = new NamedPage(['contest_scoreboard', 'homework_scoreboard'], () =>
     write(star);
   });
 
-  $('.select.filter').on('change', (e) => {
+  async function update() {
-    const val = $(e.target).val();
+    const val = $($('.select.filter')).val();
     if (val === 'all') {
       $('.data-table tbody tr').show();
-      read().forEach((uid) => $(`.star.user--${uid}`).closest('tr').addClass('star-highlight'));
+      (await read()).forEach((uid) => $(`.star.user--${uid}`).closest('tr').addClass('star-highlight'));
     } else if (val === 'star') {
       $('.data-table tbody tr').hide();
-      read().forEach((uid) => $(`.star.user--${uid}`).closest('tr').show().removeClass('star-highlight'));
+      (await read()).forEach((uid) => $(`.star.user--${uid}`).closest('tr').show().removeClass('star-highlight'));
     } else if (val === 'rank') {
       $('.data-table tbody tr').show();
       $('.rank--unrank').closest('tr').hide();
@@ -41,13 +43,17 @@ const page = new NamedPage(['contest_scoreboard', 'homework_scoreboard'], () =>
       if (!uids?.length) return;
       uids.forEach((uid) => $(`.user--${uid}`).closest('tr').show());
     }
-  });
+  }
+  $('.select.filter').on('change', update);
 
   const beginAt = new Date(UiContext.tdoc.beginAt).getTime();
   const endAt = new Date(UiContext.tdoc.endAt).getTime();
-  function updateScoreboard() {
+  async function updateScoreboard() {
     const now = Date.now();
-    if (beginAt <= now && now <= endAt) pjax.request({ url: UiContext.scoreboardUrl || '', push: false });
+    if (beginAt <= now && now <= endAt) {
+      await pjax.request({ url: UiContext.scoreboardUrl || '', push: false });
+      await update();
+    }
   }
 
   setInterval(updateScoreboard, 180000);

packages/ui-default/pages/problem_detail.page.tsx

@@ -9,15 +9,14 @@ import { NamedPage } from 'vj/misc/Page';
 import {
   delay, i18n, loadReactRedux, pjax, request, tpl,
 } from 'vj/utils';
+import { openDB } from 'vj/utils/db';
 
 class ProblemPageExtender {
-  constructor() {
+  isExtended = false;
-    this.isExtended = false;
+  inProgress = false;
-    this.inProgress = false;
+  $content = $('.problem-content-container');
-    this.$content = $('.problem-content-container');
+  $contentBound = this.$content.closest('.section');
-    this.$contentBound = this.$content.closest('.section');
+  $scratchpadContainer = $('.scratchpad-container');
-    this.$scratchpadContainer = $('.scratchpad-container');
-  }
 
   async extend() {
     if (this.inProgress) return;
@@ -28,6 +27,7 @@ class ProblemPageExtender {
       .get(0)
       .getBoundingClientRect();
 
+    // @ts-ignore
     this.$content.transition({ opacity: 0 }, { duration: 100 });
     await delay(100);
 
@@ -41,6 +41,7 @@ class ProblemPageExtender {
       })
       .show()
       .transition({
+        // @ts-ignore
         left: 0,
         top: 0,
         width: '100%',
@@ -77,6 +78,7 @@ class ProblemPageExtender {
 
     await this.$scratchpadContainer
       .transition({
+        // @ts-ignore
         left: bound.left,
         top: bound.top,
         width: bound.width,
@@ -88,6 +90,7 @@ class ProblemPageExtender {
       .promise();
 
     this.$scratchpadContainer.hide();
+    // @ts-ignore
     this.$content.transition({ opacity: 1 }, { duration: 100 });
     window.document.body.style.overflow = 'scroll';
 
@@ -112,6 +115,7 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
   }
 
   async function scratchpadFadeIn() {
+    // @ts-ignore
     await $('#scratchpad')
       .transition(
         { opacity: 1 },
@@ -121,6 +125,7 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
   }
 
   async function scratchpadFadeOut() {
+    // @ts-ignore
     await $('#scratchpad')
       .transition(
         { opacity: 0 },
@@ -138,6 +143,7 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
     const { default: ScratchpadReducer } = await import('../components/scratchpad/reducers');
     const { Provider, store } = await loadReactRedux(ScratchpadReducer);
 
+    // @ts-ignore
     window.store = store;
     const sock = new WebSocket(UiContext.ws_prefix + UiContext.pretestConnUrl);
     sock.onmessage = (message) => {
@@ -237,22 +243,25 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
       [, setUpdate] = React.useState(0);
       return <div className="contest-problems" style={{ margin: '1em' }}>
         {pids.map((i) => <a href={`#p${i}`} className={ans[i] ? 'pass ' : ''}>
-          <span class="id">{i}</span>
+          <span className="id">{i}</span>
-          {ans[i] && <span class="icon icon-check"></span>}
+          {ans[i] && <span className="icon icon-check"></span>}
         </a>)}
       </div>;
     }
 
-    function saveAns() {
+    const db = await openDB;
-      localStorage.setItem(`${cacheKey}#objective`, JSON.stringify(ans));
+    async function saveAns() {
-      setUpdate?.((i) => i + 1);
+      await db.put('solutions', {
+        id: `${cacheKey}#objective`,
+        value: JSON.stringify(ans),
+      });
     }
-    function clearAns() {
+    async function clearAns() {
-      localStorage.removeItem(`${cacheKey}#objective`);
+      await db.delete('solutions', `${cacheKey}#objective`);
       window.location.reload();
     }
-    function loadAns() {
+    async function loadAns() {
-      const saved = localStorage.getItem(`${cacheKey}#objective`);
+      const saved = await db.get('solutions', `${cacheKey}#objective`);
       if (!saved) return;
       const isValidOption = (v) => v.length === 1 && v.charCodeAt(0) >= 65 && v.charCodeAt(0) <= 90;
       Object.assign(ans, JSON.parse(saved));
@@ -261,27 +270,28 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
           for (const v of val) {
             if (isValidOption(v)) $(`.objective_${id} input[value="${v}"]`).prop('checked', true);
           }
-        } else {
+        } else if (val) {
-          $(`.objective_${id} input[type=text], .objective_${id} textarea`).val(val);
+          $(`.objective_${id} input[type=text], .objective_${id} textarea`).val(val.toString());
           if (isValidOption(val)) $(`.objective_${id}.radiobox [value="${val}"]`).prop('checked', true);
         }
       }
+      setUpdate((v) => v + 1);
     }
 
     if (cnt) {
-      loadAns();
+      await loadAns();
       $('.problem-content .typo').append(document.getElementsByClassName('nav__item--round').length
         ? `<input type="submit" disabled class="button rounded primary disabled" value="${i18n('Login to Submit')}" />`
         : `<input type="submit" class="button rounded primary" value="${i18n('Submit')}" />`);
-      $('.objective-input[type!=checkbox]').on('input', (e) => {
+      $('.objective-input[type!=checkbox]').on('input', (e: JQuery.TriggeredEvent<HTMLInputElement>) => {
         ans[e.target.name] = e.target.value;
         saveAns();
       });
-      $('input.objective-input[type=checkbox]').on('input', (e) => {
+      $('input.objective-input[type=checkbox]').on('input', (e: JQuery.TriggeredEvent<HTMLInputElement>) => {
         if (e.target.checked) {
           ans[e.target.name] ||= [];
           ans[e.target.name].push(e.target.value);
-          ans[e.target.name] = [...new Set(ans[e.target.name])].sort((a, b) => a.charCodeAt(0) - b.charCodeAt(0));
+          ans[e.target.name] = [...new Set(ans[e.target.name])].sort((a: string, b: string) => a.charCodeAt(0) - b.charCodeAt(0));
         } else {
           ans[e.target.name] = ans[e.target.name].filter((v) => v !== e.target.value);
         }
@@ -310,7 +320,7 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
         const result = await new ConfirmDialog({
           $body: tpl.typoMsg('All changes will be lost. Are you sure to clear all answers?'),
         }).open();
-        if (result === 'yes') clearAns();
+        if (result === 'yes') await clearAns();
       });
     }
     const ele = document.createElement('div');

packages/ui-default/utils/db.ts

@@ -0,0 +1,37 @@
+import { openDB as _open } from 'idb';
+import { InfoDialog } from 'vj/components/dialog';
+import { tpl } from 'vj/utils';
+
+export const openDB = _open('hydro', 1, {
+  upgrade(db, oldVersion) {
+    if (oldVersion < 1) {
+      const solutionStore = db.createObjectStore('solutions', { keyPath: 'id' });
+      db.createObjectStore('scoreboard-star', { keyPath: 'id' });
+      const keys = Object.keys(localStorage);
+      for (const key of keys) {
+        if (key.endsWith('#objective')) {
+          const value = localStorage.getItem(key);
+          if (value) solutionStore.put({ id: key, value: JSON.parse(value) });
+          localStorage.removeItem(key);
+        }
+        if (key.startsWith('scoreboard-star/')) localStorage.removeItem(key);
+        if (/^0\.\d+$/.test(key)) localStorage.removeItem(key);
+      }
+    }
+  },
+  blocked(currentVersion, blockedVersion) {
+    console.error('IDB Blocked by version', blockedVersion, 'want', currentVersion);
+    new InfoDialog({
+      $body: tpl.typoMsg('Some other opened tabs locked the database. Please close them.'),
+    }).open();
+  },
+  blocking(currentVersion, blockedVersion) {
+    console.error('IDB Blocking version', blockedVersion);
+    new InfoDialog({
+      $body: tpl.typoMsg('Please close or refresh this tab to perform the upgrade.'),
+    }).open();
+  },
+  terminated() {
+    console.error('IDB Terminated');
+  },
+});