git.scottworley.com Git - vopamoi/blob - vopamoi.ts

   1 // Typescript doesn't know about MAX_SAFE_INTEGER??  This was supposed to be
   2 // fixed in typescript 2.0.1 in 2016, but is not working for me in typescript
   3 // 4.2.4 in 2022.  :( https://github.com/microsoft/TypeScript/issues/9937
   4 //const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER;
   5 const MAX_SAFE_INTEGER = 9007199254740991;
   6
   7 // A sane split that splits N *times*, leaving the last chunk unsplit.
   8 function splitN(str: string, delimiter: string, limit: number = MAX_SAFE_INTEGER): string[] {
   9   if (limit < 1) {
  10     return [str];
  11   }
  12   const at = str.indexOf(delimiter);
  13   return at === -1 ? [str] : [str.substring(0, at)].concat(splitN(str.substring(at + delimiter.length), delimiter, limit - 1));
  14 }
  15
  16 // A clock that never goes backwards; monotonic.
  17 function Clock() {
  18   var previousNow = Date.now();
  19   return {
  20     now: function (): number {
  21       const now = Date.now();
  22       if (now > previousNow) {
  23         previousNow = now;
  24         return now;
  25       }
  26       return ++previousNow;
  27     },
  28   };
  29 }
  30 const clock = Clock();
  31
  32 // Returns a promise for a hue based on a hash of the string
  33 function hashHue(str: string) {
  34   // Using crypto for this is overkill
  35   return crypto.subtle.digest("SHA-256", new TextEncoder().encode(str)).then((buf) => (new Uint16Array(buf)[0] * 360) / 2 ** 16);
  36 }
  37
  38 const Model = {
  39   addTask: function (timestamp: string, description: string): Element {
  40     const task = document.createElement("div");
  41     const desc = document.createElement("span");
  42     desc.textContent = description;
  43     desc.classList.add("desc");
  44     task.appendChild(desc);
  45     task.classList.add("task");
  46     task.setAttribute("tabindex", "0");
  47     task.setAttribute("data-created", timestamp);
  48     task.setAttribute("data-state", "todo");
  49     const tasks = document.getElementById("tasks")!;
  50     tasks.insertBefore(task, tasks.firstElementChild);
  51     return task;
  52   },
  53
  54   addTag: function (createTimestamp: string, tagName: string): Element | null {
  55     const task = this.getTask(createTimestamp);
  56     if (!task) return null;
  57     const existingTag = this.hasTag(task, tagName);
  58     if (existingTag) return existingTag;
  59     const tag = document.createElement("span");
  60     tag.appendChild(document.createTextNode(tagName));
  61     tag.classList.add("tag");
  62     tag.setAttribute("tabindex", "0");
  63     hashHue(tagName).then((hue) => (tag.style.backgroundColor = `hsl(${hue},90%,45%)`));
  64     for (const child of task.getElementsByClassName("tag")) {
  65       if (tagName > child.textContent!) {
  66         task.insertBefore(tag, child);
  67         return tag;
  68       }
  69     }
  70     task.insertBefore(tag, task.getElementsByClassName("desc")[0]!);
  71     return tag;
  72   },
  73
  74   edit: function (createTimestamp: string, newDescription: string): Element | null {
  75     const target = this.getTask(createTimestamp);
  76     if (!target) return null;
  77     if (target.hasAttribute("data-description")) {
  78       // Oh no: An edit has arrived from a replica while a local edit is in progress.
  79       const input = target.getElementsByTagName("input")[0]!;
  80       if (
  81         input.value === target.getAttribute("data-description") &&
  82         input.selectionStart === input.value.length &&
  83         input.selectionEnd === input.value.length
  84       ) {
  85         // No local changes have actually been made yet.  Change the contents of the edit box!
  86         input.value = newDescription;
  87       } else {
  88         // No great options.
  89         // Prefer not to interrupt the local user's edit.
  90         // The remote edit is mostly lost; this mostly becomes last-write-wins.
  91         target.setAttribute("data-description", newDescription);
  92       }
  93     } else {
  94       target.getElementsByClassName("desc")[0].textContent = newDescription;
  95     }
  96     return target;
  97   },
  98
  99   hasTag: function (task: Element, tag: string): Element | null {
 100     for (const child of task.getElementsByClassName("tag")) {
 101       if (child.textContent === tag) {
 102         return child;
 103       }
 104     }
 105     return null;
 106   },
 107
 108   getPriority: function (task: Element): number {
 109     if (task.hasAttribute("data-priority")) {
 110       return parseFloat(task.getAttribute("data-priority")!);
 111     }
 112     return parseFloat(task.getAttribute("data-created")!);
 113   },
 114
 115   getTask: function (createTimestamp: string) {
 116     for (const task of document.getElementsByClassName("task")) {
 117       if (task.getAttribute("data-created") === createTimestamp) {
 118         return task;
 119       }
 120     }
 121   },
 122
 123   insertInPriorityOrder: function (task: Element, dest: Element) {
 124     const priority = this.getPriority(task);
 125     for (const t of dest.children) {
 126       if (t !== task && this.getPriority(t) < priority) {
 127         dest.insertBefore(task, t);
 128         return;
 129       }
 130     }
 131     dest.appendChild(task);
 132   },
 133
 134   removeTag: function (createTimestamp: string, tagName: string) {
 135     const task = this.getTask(createTimestamp);
 136     if (!task) return null;
 137     const tag = this.hasTag(task, tagName);
 138     if (!tag) return;
 139     task.removeChild(tag);
 140     if (task instanceof HTMLElement) task.focus();
 141   },
 142
 143   setPriority: function (createTimestamp: string, priority: number): Element | null {
 144     const target = this.getTask(createTimestamp);
 145     if (!target) return null;
 146     target.setAttribute("data-priority", `${priority}`);
 147     this.insertInPriorityOrder(target, target.parentElement!);
 148     return target;
 149   },
 150
 151   setState: function (stateTimestamp: string, createTimestamp: string, state: string) {
 152     const task = this.getTask(createTimestamp);
 153     if (!task) return;
 154     task.setAttribute("data-state", state);
 155     var date = task.getElementsByClassName("statedate")[0];
 156     if (state === "todo") {
 157       task.removeChild(date);
 158       return;
 159     }
 160     if (!date) {
 161       date = document.createElement("span");
 162       date.classList.add("statedate");
 163       task.insertBefore(date, task.firstChild);
 164     }
 165     const d = new Date(parseInt(stateTimestamp));
 166     date.textContent = `${d.getFullYear()}-${`${d.getMonth() + 1}`.padStart(2, "0")}-${`${d.getDate()}`.padStart(2, "0")}`;
 167   },
 168 };
 169
 170 function Log(prefix: string = "vp-") {
 171   var next_log_index = 0;
 172   return {
 173     apply: function (entry: string) {
 174       const [timestamp, command, data] = splitN(entry, " ", 2);
 175       if (command == "Create") {
 176         return Model.addTask(timestamp, data);
 177       }
 178       if (command == "Edit") {
 179         const [createTimestamp, description] = splitN(data, " ", 1);
 180         return Model.edit(createTimestamp, description);
 181       }
 182       if (command == "Priority") {
 183         const [createTimestamp, newPriority] = splitN(data, " ", 1);
 184         return Model.setPriority(createTimestamp, parseFloat(newPriority));
 185       }
 186       if (command == "State") {
 187         const [createTimestamp, state] = splitN(data, " ", 1);
 188         return Model.setState(timestamp, createTimestamp, state);
 189       }
 190       if (command == "Tag") {
 191         const [createTimestamp, tag] = splitN(data, " ", 1);
 192         return Model.addTag(createTimestamp, tag);
 193       }
 194       if (command == "Untag") {
 195         const [createTimestamp, tag] = splitN(data, " ", 1);
 196         return Model.removeTag(createTimestamp, tag);
 197       }
 198     },
 199
 200     record: function (entry: string) {
 201       window.localStorage.setItem(`${prefix}${next_log_index++}`, entry);
 202     },
 203
 204     recordAndApply: function (entry: string) {
 205       this.record(entry);
 206       return this.apply(entry);
 207     },
 208
 209     replay: function () {
 210       while (true) {
 211         const entry = window.localStorage.getItem(`${prefix}${next_log_index}`);
 212         if (entry === null) {
 213           break;
 214         }
 215         this.apply(entry);
 216         next_log_index++;
 217       }
 218     },
 219   };
 220 }
 221 const log = Log();
 222
 223 function UI() {
 224   const undoLog: string[][] = [];
 225   const redoLog: string[][] = [];
 226   function perform(forward: string, reverse: string) {
 227     undoLog.push([reverse, forward]);
 228     return log.recordAndApply(`${clock.now()} ${forward}`);
 229   }
 230   return {
 231     addTask: function (description: string): Element {
 232       const now = clock.now();
 233       undoLog.push([`State ${now} deleted`, `State ${now} todo`]);
 234       return <Element>log.recordAndApply(`${now} Create ${description}`);
 235     },
 236     addTag: function (createTimestamp: string, tag: string) {
 237       return perform(`Tag ${createTimestamp} ${tag}`, `Untag ${createTimestamp} ${tag}`);
 238     },
 239     edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
 240       return perform(`Edit ${createTimestamp} ${newDescription}`, `Edit ${createTimestamp} ${oldDescription}`);
 241     },
 242     removeTag: function (createTimestamp: string, tag: string) {
 243       return perform(`Untag ${createTimestamp} ${tag}`, `Tag ${createTimestamp} ${tag}`);
 244     },
 245     setPriority: function (createTimestamp: string, newPriority: number, oldPriority: number) {
 246       return perform(`Priority ${createTimestamp} ${newPriority}`, `Priority ${createTimestamp} ${oldPriority}`);
 247     },
 248     setState: function (createTimestamp: string, newState: string, oldState: string) {
 249       return perform(`State ${createTimestamp} ${newState}`, `State ${createTimestamp} ${oldState}`);
 250     },
 251     undo: function () {
 252       const entry = undoLog.pop();
 253       if (entry) {
 254         redoLog.push(entry);
 255         return log.recordAndApply(`${clock.now()} ${entry[0]}`);
 256       }
 257     },
 258     redo: function () {
 259       const entry = redoLog.pop();
 260       if (entry) {
 261         undoLog.push(entry);
 262         return log.recordAndApply(`${clock.now()} ${entry[1]}`);
 263       }
 264     },
 265   };
 266 }
 267 const ui = UI();
 268
 269 enum CommitOrAbort {
 270   Commit,
 271   Abort,
 272 }
 273
 274 function BrowserUI() {
 275   const viewColors: { [key: string]: string } = {
 276     all: "Gold",
 277     cancelled: "Red",
 278     deleted: "Black",
 279     done: "LawnGreen",
 280     "someday-maybe": "DeepSkyBlue",
 281     todo: "White",
 282     waiting: "MediumOrchid",
 283   };
 284   var currentTagView: string | null = null;
 285   var currentViewState = "todo";
 286   var taskFocusedBeforeJumpingToInput: HTMLElement | null = null;
 287   var lastTagNameEntered = "";
 288   return {
 289     addTask: function (event: KeyboardEvent) {
 290       const input = <HTMLInputElement>document.getElementById("taskName");
 291       if (input.value.match(/^ *$/)) return;
 292       const task = ui.addTask(input.value);
 293       if (currentViewState === "todo" || currentViewState === "all") {
 294         task instanceof HTMLElement && task.focus();
 295       } else if (this.returnFocusAfterInput()) {
 296       } else {
 297         this.firstVisibleTask()?.focus();
 298       }
 299       input.value = "";
 300       if (currentTagView) {
 301         ui.addTag(task.getAttribute("data-created")!, currentTagView);
 302       }
 303       if (event.getModifierState("Control")) {
 304         this.makeBottomPriority(task);
 305       }
 306     },
 307
 308     beginEdit: function (event: Event) {
 309       const task = this.currentTask();
 310       if (!task) return;
 311       const input = document.createElement("input");
 312       const desc = task.getElementsByClassName("desc")[0];
 313       const oldDescription = desc.textContent!;
 314       task.setAttribute("data-description", oldDescription);
 315       input.value = oldDescription;
 316       input.addEventListener("blur", this.completeEdit, { once: true });
 317       desc.textContent = "";
 318       task.insertBefore(input, task.firstChild);
 319       input.focus();
 320       event.preventDefault();
 321     },
 322
 323     beginTagEdit: function (event: Event) {
 324       const task = this.currentTask();
 325       if (!task) return;
 326       const input = document.createElement("input");
 327       input.classList.add("tag");
 328       input.addEventListener("blur", this.completeTagEdit, { once: true });
 329       input.value = lastTagNameEntered;
 330       task.appendChild(input);
 331       input.focus();
 332       input.select();
 333       event.preventDefault();
 334     },
 335
 336     completeEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
 337       const input = event.target as HTMLInputElement;
 338       const task = input.parentElement!;
 339       const desc = task.getElementsByClassName("desc")[0];
 340       const oldDescription = task.getAttribute("data-description")!;
 341       const newDescription = input.value;
 342       input.removeEventListener("blur", this.completeEdit);
 343       task.removeChild(input);
 344       task.removeAttribute("data-description");
 345       task.focus();
 346       if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
 347         desc.textContent = oldDescription;
 348       } else {
 349         ui.edit(task.getAttribute("data-created")!, newDescription, oldDescription);
 350       }
 351     },
 352
 353     completeTagEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
 354       const input = event.target as HTMLInputElement;
 355       const task = input.parentElement!;
 356       const newTagName = input.value;
 357       input.removeEventListener("blur", this.completeTagEdit);
 358       task.removeChild(input);
 359       task.focus();
 360       if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !Model.hasTag(task, newTagName)) {
 361         ui.addTag(task.getAttribute("data-created")!, newTagName);
 362         lastTagNameEntered = newTagName;
 363       }
 364     },
 365
 366     currentTag: function (): Element | null {
 367       var target = document.activeElement;
 368       if (!target) return null;
 369       if (target.classList.contains("task")) {
 370         const tags = target.getElementsByClassName("tag");
 371         target = tags[tags.length - 1];
 372       }
 373       if (!target || !target.classList.contains("tag")) return null;
 374       return target;
 375     },
 376
 377     currentTask: function (): HTMLElement | null {
 378       var target = document.activeElement;
 379       if (!target) return null;
 380       if (target.classList.contains("tag")) target = target.parentElement!;
 381       return target as HTMLElement;
 382     },
 383
 384     firstVisibleTask: function () {
 385       for (const task of document.getElementsByClassName("task")) {
 386         const state = task.getAttribute("data-state");
 387         if (
 388           task instanceof HTMLElement &&
 389           (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
 390           !task.classList.contains("hide")
 391         ) {
 392           return task;
 393         }
 394       }
 395     },
 396
 397     focusTaskNameInput: function (event: Event) {
 398       taskFocusedBeforeJumpingToInput = this.currentTask();
 399       document.getElementById("taskName")!.focus();
 400       window.scroll(0, 0);
 401       event.preventDefault();
 402     },
 403
 404     visibleTaskAtOffset(task: Element, offset: number): Element {
 405       var cursor: Element | null = task;
 406       var valid_cursor = cursor;
 407       const increment = offset / Math.abs(offset);
 408       while (true) {
 409         cursor = increment > 0 ? cursor.nextElementSibling : cursor.previousElementSibling;
 410         if (!cursor || !(cursor instanceof HTMLElement)) break;
 411         const state = cursor.getAttribute("data-state")!;
 412         if (
 413           (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
 414           !cursor.classList.contains("hide")
 415         ) {
 416           offset -= increment;
 417           valid_cursor = cursor;
 418         }
 419         if (Math.abs(offset) < 0.5) break;
 420       }
 421       return valid_cursor;
 422     },
 423
 424     jumpCursor: function (position: number) {
 425       const first = this.firstVisibleTask();
 426       if (!first) return;
 427       const dest = this.visibleTaskAtOffset(first, position - 1);
 428       if (dest instanceof HTMLElement) dest.focus();
 429     },
 430
 431     makeBottomPriority: function (task: Element | null = null) {
 432       if (!task) task = this.currentTask();
 433       if (!task) return;
 434       this.setPriority(task, document.getElementById("tasks")!.lastElementChild, null);
 435     },
 436
 437     makeTopPriority: function (task: Element | null = null) {
 438       if (!task) task = this.currentTask();
 439       if (!task) return;
 440       ui.setPriority(task.getAttribute("data-created")!, clock.now(), Model.getPriority(task));
 441       task instanceof HTMLElement && task.focus();
 442     },
 443
 444     moveCursor: function (offset: number): boolean {
 445       const active = this.currentTask();
 446       if (!active) return false;
 447       const dest = this.visibleTaskAtOffset(active, offset);
 448       if (dest !== active && dest instanceof HTMLElement) {
 449         dest.focus();
 450         return true;
 451       }
 452       return false;
 453     },
 454
 455     moveTask: function (offset: number) {
 456       const active = this.currentTask();
 457       if (!active) return;
 458       const dest = this.visibleTaskAtOffset(active, offset);
 459       if (dest === active) return; // Already extremal
 460       var onePastDest: Element | null = this.visibleTaskAtOffset(dest, offset / Math.abs(offset));
 461       if (onePastDest == dest) onePastDest = null; // Will become extremal
 462       if (offset > 0) {
 463         this.setPriority(active, dest, onePastDest);
 464       } else {
 465         this.setPriority(active, onePastDest, dest);
 466       }
 467     },
 468
 469     removeTag: function () {
 470       const target = this.currentTag();
 471       if (!target) return;
 472       ui.removeTag(target.parentElement!.getAttribute("data-created")!, target.textContent!);
 473     },
 474
 475     resetTagView: function () {
 476       currentTagView = null;
 477       const taskList = document.getElementById("tasks")!;
 478       for (const task of Array.from(document.getElementsByClassName("task"))) {
 479         task.classList.remove("hide");
 480         if (task.parentElement !== taskList) {
 481           Model.insertInPriorityOrder(task, taskList);
 482         }
 483       }
 484     },
 485
 486     resetView: function () {
 487       this.setView("todo");
 488       this.resetTagView();
 489     },
 490
 491     returnFocusAfterInput: function (): boolean {
 492       if (taskFocusedBeforeJumpingToInput) {
 493         taskFocusedBeforeJumpingToInput.focus();
 494         return true;
 495       }
 496       return false;
 497     },
 498
 499     // Change task's priority to be between other tasks a and b.
 500     setPriority: function (task: Element, a: Element | null, b: Element | null) {
 501       const aPriority = a === null ? clock.now() : Model.getPriority(a);
 502       const bPriority = b === null ? 0 : Model.getPriority(b);
 503       console.assert(aPriority > bPriority, aPriority, ">", bPriority);
 504       const span = aPriority - bPriority;
 505       const newPriority = bPriority + 0.1 * span + 0.8 * span * Math.random();
 506       console.assert(aPriority > newPriority && newPriority > bPriority, aPriority, ">", newPriority, ">", bPriority);
 507       const newPriorityRounded = Math.round(newPriority);
 508       const okToRound = aPriority > newPriorityRounded && newPriorityRounded > bPriority;
 509       ui.setPriority(task.getAttribute("data-created")!, okToRound ? newPriorityRounded : newPriority, Model.getPriority(task));
 510       task instanceof HTMLElement && task.focus();
 511     },
 512
 513     setState: function (newState: string) {
 514       const task = this.currentTask();
 515       if (!task) return;
 516       const oldState = task.getAttribute("data-state")!;
 517       if (newState === oldState) return;
 518       const createTimestamp = task.getAttribute("data-created")!;
 519       if (currentViewState !== "all" || newState == "deleted") {
 520         this.moveCursor(1) || this.moveCursor(-1);
 521       }
 522       return ui.setState(createTimestamp, newState, oldState);
 523     },
 524
 525     setTagView: function (tag: string | null = null) {
 526       if (tag === null) {
 527         const target = this.currentTag();
 528         if (!target) return;
 529         tag = target.textContent!;
 530       }
 531
 532       if (currentTagView !== null) {
 533         this.resetTagView();
 534       }
 535
 536       const tasksWithTag = new Map();
 537       for (const task of document.getElementsByClassName("task")) {
 538         if (Model.hasTag(task, tag)) {
 539           tasksWithTag.set(task.getElementsByClassName("desc")[0].textContent, [Model.getPriority(task), task]);
 540         }
 541       }
 542
 543       function highestPrioritySuperTask(t: Element) {
 544         var maxPriority = -1;
 545         var superTask = null;
 546         for (const child of t.getElementsByClassName("tag")) {
 547           const e = tasksWithTag.get(child.textContent);
 548           if (e !== undefined && e[0] > maxPriority) {
 549             maxPriority = e[0];
 550             superTask = e[1];
 551           }
 552         }
 553         return superTask;
 554       }
 555
 556       for (const task of Array.from(document.getElementsByClassName("task"))) {
 557         if (Model.hasTag(task, tag)) {
 558           task.classList.remove("hide");
 559         } else {
 560           const superTask = highestPrioritySuperTask(task);
 561           if (superTask !== null) {
 562             Model.insertInPriorityOrder(task, superTask);
 563           } else {
 564             task.classList.add("hide");
 565           }
 566         }
 567       }
 568
 569       currentTagView = tag;
 570     },
 571
 572     setView: function (state: string) {
 573       const sheet = (document.getElementById("viewStyle") as HTMLStyleElement).sheet!;
 574       if (state === "all") {
 575         sheet.insertRule(`.task[data-state=deleted] { display: none }`);
 576       } else {
 577         sheet.insertRule(`.task:not([data-state=${state}]) { display: none }`);
 578       }
 579       sheet.insertRule(`:root { --view-state-indicator-color: ${viewColors[state]}; }`);
 580       sheet.removeRule(2);
 581       sheet.removeRule(2);
 582       currentViewState = state;
 583       if (this.currentTask()?.getAttribute("data-state") !== state) {
 584         this.firstVisibleTask()?.focus();
 585       }
 586     },
 587
 588     setUntaggedView: function () {
 589       if (currentTagView !== null) {
 590         this.resetTagView();
 591       }
 592       for (const task of document.getElementsByClassName("task")) {
 593         if (task.getElementsByClassName("tag").length === 0) {
 594           task.classList.remove("hide");
 595         } else {
 596           task.classList.add("hide");
 597         }
 598       }
 599     },
 600
 601     undo: function () {
 602       const ret = ui.undo();
 603       if (ret && ret instanceof HTMLElement) ret.focus();
 604     },
 605     redo: function () {
 606       const ret = ui.redo();
 607       if (ret && ret instanceof HTMLElement) ret.focus();
 608     },
 609   };
 610 }
 611 const browserUI = BrowserUI();
 612
 613 const scrollIncrement = 60;
 614 enum InputState {
 615   Root,
 616   S,
 617   V,
 618   VS,
 619 }
 620 var inputState = InputState.Root;
 621 var inputCount: number | null = null;
 622
 623 function handleKey(event: any) {
 624   if (["Alt", "Control", "Meta", "Shift"].includes(event.key)) return;
 625   if (event.target.tagName === "INPUT") {
 626     if (event.target.id === "taskName") {
 627       if (event.key == "Enter") return browserUI.addTask(event);
 628       if (event.key == "Escape") return browserUI.returnFocusAfterInput();
 629     } else if (event.target.classList.contains("tag")) {
 630       if (event.key == "Enter") return browserUI.completeTagEdit(event);
 631       if (event.key == "Escape") return browserUI.completeTagEdit(event, CommitOrAbort.Abort);
 632     } else {
 633       if (event.key == "Enter") return browserUI.completeEdit(event);
 634       if (event.key == "Escape") return browserUI.completeEdit(event, CommitOrAbort.Abort);
 635     }
 636   } else {
 637     if (inputState === InputState.Root) {
 638       if ("0" <= event.key && event.key <= "9") {
 639         return (inputCount = (inputCount ?? 0) * 10 + parseInt(event.key));
 640       }
 641       try {
 642         if (event.ctrlKey) {
 643           if (event.key == "e") return window.scrollBy(0, (inputCount ?? 1) * scrollIncrement);
 644           if (event.key == "y") return window.scrollBy(0, (inputCount ?? 1) * -scrollIncrement);
 645         } else {
 646           if (event.key == "j") return browserUI.moveCursor(inputCount ?? 1);
 647           if (event.key == "k") return browserUI.moveCursor(-(inputCount ?? 1));
 648           if (event.key == "J") return browserUI.moveTask(inputCount ?? 1);
 649           if (event.key == "K") return browserUI.moveTask(-(inputCount ?? 1));
 650           if (event.key == "G") return browserUI.jumpCursor(inputCount ?? MAX_SAFE_INTEGER);
 651           if (event.key == "T") return browserUI.makeTopPriority();
 652           if (event.key == "n") return browserUI.focusTaskNameInput(event);
 653           if (event.key == "c") return browserUI.setState("cancelled");
 654           if (event.key == "d") return browserUI.setState("done");
 655           if (event.key == "q") return browserUI.setState("todo");
 656           if (event.key == "s") return (inputState = InputState.S);
 657           if (event.key == "w") return browserUI.setState("waiting");
 658           if (event.key == "X") return browserUI.setState("deleted");
 659           if (event.key == "x") return browserUI.removeTag();
 660           if (event.key == "u") return browserUI.undo();
 661           if (event.key == "r") return browserUI.redo();
 662           if (event.key == "e") return browserUI.beginEdit(event);
 663           if (event.key == "t") return browserUI.beginTagEdit(event);
 664           if (event.key == "v") return (inputState = InputState.V);
 665         }
 666       } finally {
 667         inputCount = null;
 668       }
 669     } else if (inputState === InputState.S) {
 670       inputState = InputState.Root;
 671       if (event.key == "m") return browserUI.setState("someday-maybe");
 672     } else if (inputState === InputState.V) {
 673       inputState = InputState.Root;
 674       if (event.key == "a") return browserUI.setView("all");
 675       if (event.key == "c") return browserUI.setView("cancelled");
 676       if (event.key == "d") return browserUI.setView("done");
 677       if (event.key == "i") return browserUI.setUntaggedView();
 678       if (event.key == "p") return browserUI.setTagView("Project");
 679       if (event.key == "q") return browserUI.setView("todo");
 680       if (event.key == "s") return (inputState = InputState.VS);
 681       if (event.key == "T") return browserUI.resetTagView();
 682       if (event.key == "t") return browserUI.setTagView();
 683       if (event.key == "u") return browserUI.setUntaggedView();
 684       if (event.key == "v") return browserUI.resetView();
 685       if (event.key == "w") return browserUI.setView("waiting");
 686       if (event.key == "x") return browserUI.setView("deleted");
 687     } else if (inputState === InputState.VS) {
 688       inputState = InputState.Root;
 689       if (event.key == "m") return browserUI.setView("someday-maybe");
 690     }
 691   }
 692 }
 693
 694 function browserInit() {
 695   log.replay();
 696   browserUI.firstVisibleTask()?.focus();
 697   document.body.addEventListener("keydown", handleKey, { capture: false });
 698 }