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 function Model() {
  39   return {
  40     addTask: function (timestamp: string, description: string): Element {
  41       const task = document.createElement("div");
  42       const desc = document.createElement("span");
  43       desc.textContent = description;
  44       desc.classList.add("desc");
  45       task.appendChild(desc);
  46       task.classList.add("task");
  47       task.setAttribute("tabindex", "0");
  48       task.setAttribute("id", timestamp);
  49       task.setAttribute("data-state", "todo");
  50       const tasks = document.getElementById("tasks")!;
  51       tasks.insertBefore(task, tasks.firstElementChild);
  52       return task;
  53     },
  54
  55     addTag: function (createTimestamp: string, tagName: string): Element | null {
  56       const task = this.getTask(createTimestamp);
  57       if (!task) return null;
  58       const existingTag = this.hasTag(task, tagName);
  59       if (existingTag) return existingTag;
  60       const tag = document.createElement("span");
  61       tag.appendChild(document.createTextNode(tagName));
  62       tag.classList.add("tag");
  63       tag.setAttribute("tabindex", "0");
  64       hashHue(tagName).then((hue) => (tag.style.backgroundColor = `hsl(${hue},90%,45%)`));
  65       for (const child of task.getElementsByClassName("tag")) {
  66         if (tagName > child.textContent!) {
  67           task.insertBefore(tag, child);
  68           return tag;
  69         }
  70       }
  71       task.insertBefore(tag, task.getElementsByClassName("desc")[0]!);
  72       return tag;
  73     },
  74
  75     edit: function (createTimestamp: string, newDescription: string): Element | null {
  76       const target = this.getTask(createTimestamp);
  77       if (!target) return null;
  78       if (target.hasAttribute("data-description")) {
  79         // Oh no: An edit has arrived from a replica while a local edit is in progress.
  80         const input = target.getElementsByTagName("input")[0]!;
  81         if (
  82           input.value === target.getAttribute("data-description") &&
  83           input.selectionStart === input.value.length &&
  84           input.selectionEnd === input.value.length
  85         ) {
  86           // No local changes have actually been made yet.  Change the contents of the edit box!
  87           input.value = newDescription;
  88         } else {
  89           // No great options.
  90           // Prefer not to interrupt the local user's edit.
  91           // The remote edit is mostly lost; this mostly becomes last-write-wins.
  92           target.setAttribute("data-description", newDescription);
  93         }
  94       } else {
  95         target.getElementsByClassName("desc")[0].textContent = newDescription;
  96       }
  97       return target;
  98     },
  99
 100     hasTag: function (task: Element, tag: string): Element | null {
 101       for (const child of task.getElementsByClassName("tag")) {
 102         if (child.textContent === tag) {
 103           return child;
 104         }
 105       }
 106       return null;
 107     },
 108
 109     getPriority: function (task: Element): number {
 110       if (task.hasAttribute("data-priority")) {
 111         return parseFloat(task.getAttribute("data-priority")!);
 112       }
 113       return parseFloat(task.getAttribute("id")!);
 114     },
 115
 116     getTask: function (createTimestamp: string) {
 117       return document.getElementById(createTimestamp);
 118     },
 119
 120     insertInPriorityOrder: function (task: Element, dest: Element) {
 121       const priority = this.getPriority(task);
 122       for (const t of dest.children) {
 123         if (t !== task && this.getPriority(t) < priority) {
 124           dest.insertBefore(task, t);
 125           return;
 126         }
 127       }
 128       dest.appendChild(task);
 129     },
 130
 131     removeTag: function (createTimestamp: string, tagName: string) {
 132       const task = this.getTask(createTimestamp);
 133       if (!task) return null;
 134       const tag = this.hasTag(task, tagName);
 135       if (!tag) return;
 136       task.removeChild(tag);
 137       if (task instanceof HTMLElement) task.focus();
 138     },
 139
 140     setPriority: function (createTimestamp: string, priority: number): Element | null {
 141       const target = this.getTask(createTimestamp);
 142       if (!target) return null;
 143       target.setAttribute("data-priority", `${priority}`);
 144       this.insertInPriorityOrder(target, target.parentElement!);
 145       return target;
 146     },
 147
 148     setState: function (stateTimestamp: string, createTimestamp: string, state: string) {
 149       const task = this.getTask(createTimestamp);
 150       if (!task) return;
 151       task.setAttribute("data-state", state);
 152       var date = task.getElementsByClassName("statedate")[0];
 153       if (state === "todo") {
 154         task.removeChild(date);
 155         return;
 156       }
 157       if (!date) {
 158         date = document.createElement("span");
 159         date.classList.add("statedate");
 160         task.insertBefore(date, task.firstChild);
 161       }
 162       const d = new Date(parseInt(stateTimestamp));
 163       date.textContent = `${d.getFullYear()}-${`${d.getMonth() + 1}`.padStart(2, "0")}-${`${d.getDate()}`.padStart(2, "0")}`;
 164     },
 165   };
 166 }
 167 const model = Model();
 168
 169 function Log(prefix: string = "vp-") {
 170   var next_log_index = 0;
 171   return {
 172     apply: function (entry: string) {
 173       const [timestamp, command, data] = splitN(entry, " ", 2);
 174       if (command == "Create") {
 175         return model.addTask(timestamp, data);
 176       }
 177       if (command == "Edit") {
 178         const [createTimestamp, description] = splitN(data, " ", 1);
 179         return model.edit(createTimestamp, description);
 180       }
 181       if (command == "Priority") {
 182         const [createTimestamp, newPriority] = splitN(data, " ", 1);
 183         return model.setPriority(createTimestamp, parseFloat(newPriority));
 184       }
 185       if (command == "State") {
 186         const [createTimestamp, state] = splitN(data, " ", 1);
 187         return model.setState(timestamp, createTimestamp, state);
 188       }
 189       if (command == "Tag") {
 190         const [createTimestamp, tag] = splitN(data, " ", 1);
 191         return model.addTag(createTimestamp, tag);
 192       }
 193       if (command == "Untag") {
 194         const [createTimestamp, tag] = splitN(data, " ", 1);
 195         return model.removeTag(createTimestamp, tag);
 196       }
 197     },
 198
 199     record: function (entry: string) {
 200       window.localStorage.setItem(`${prefix}${next_log_index++}`, entry);
 201     },
 202
 203     recordAndApply: function (entry: string) {
 204       this.record(entry);
 205       return this.apply(entry);
 206     },
 207
 208     replay: function () {
 209       document.getElementById("tasks")!.style.display = "none";
 210       while (true) {
 211         const entry = window.localStorage.getItem(`${prefix}${next_log_index}`);
 212         if (entry === null) {
 213           break;
 214         }
 215         this.apply(entry);
 216         next_log_index++;
 217       }
 218       document.getElementById("tasks")!.style.display = "";
 219     },
 220   };
 221 }
 222 const log = Log();
 223
 224 function UI() {
 225   const undoLog: string[][] = [];
 226   const redoLog: string[][] = [];
 227   function perform(forward: string, reverse: string) {
 228     undoLog.push([reverse, forward]);
 229     return log.recordAndApply(`${clock.now()} ${forward}`);
 230   }
 231   return {
 232     addTask: function (description: string): Element {
 233       const now = clock.now();
 234       undoLog.push([`State ${now} deleted`, `State ${now} todo`]);
 235       return <Element>log.recordAndApply(`${now} Create ${description}`);
 236     },
 237     addTag: function (createTimestamp: string, tag: string) {
 238       return perform(`Tag ${createTimestamp} ${tag}`, `Untag ${createTimestamp} ${tag}`);
 239     },
 240     edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
 241       return perform(`Edit ${createTimestamp} ${newDescription}`, `Edit ${createTimestamp} ${oldDescription}`);
 242     },
 243     removeTag: function (createTimestamp: string, tag: string) {
 244       return perform(`Untag ${createTimestamp} ${tag}`, `Tag ${createTimestamp} ${tag}`);
 245     },
 246     setPriority: function (createTimestamp: string, newPriority: number, oldPriority: number) {
 247       return perform(`Priority ${createTimestamp} ${newPriority}`, `Priority ${createTimestamp} ${oldPriority}`);
 248     },
 249     setState: function (createTimestamp: string, newState: string, oldState: string) {
 250       return perform(`State ${createTimestamp} ${newState}`, `State ${createTimestamp} ${oldState}`);
 251     },
 252     undo: function () {
 253       const entry = undoLog.pop();
 254       if (entry) {
 255         redoLog.push(entry);
 256         return log.recordAndApply(`${clock.now()} ${entry[0]}`);
 257       }
 258     },
 259     redo: function () {
 260       const entry = redoLog.pop();
 261       if (entry) {
 262         undoLog.push(entry);
 263         return log.recordAndApply(`${clock.now()} ${entry[1]}`);
 264       }
 265     },
 266   };
 267 }
 268 const ui = UI();
 269
 270 enum CommitOrAbort {
 271   Commit,
 272   Abort,
 273 }
 274
 275 function BrowserUI() {
 276   const viewColors: { [key: string]: string } = {
 277     all: "Gold",
 278     cancelled: "Red",
 279     deleted: "Black",
 280     done: "LawnGreen",
 281     "someday-maybe": "DeepSkyBlue",
 282     todo: "White",
 283     waiting: "MediumOrchid",
 284   };
 285   var currentTagView: string | null = null;
 286   var currentViewState = "todo";
 287   var taskFocusedBeforeJumpingToInput: HTMLElement | null = null;
 288   var lastTagNameEntered = "";
 289   return {
 290     addTask: function (event: KeyboardEvent) {
 291       const input = <HTMLInputElement>document.getElementById("taskName");
 292       if (input.value.match(/^ *$/)) return;
 293       const task = ui.addTask(input.value);
 294       if (currentViewState === "todo" || currentViewState === "all") {
 295         task instanceof HTMLElement && task.focus();
 296       } else if (this.returnFocusAfterInput()) {
 297       } else {
 298         this.firstVisibleTask()?.focus();
 299       }
 300       input.value = "";
 301       if (event.getModifierState("Control")) {
 302         this.makeBottomPriority(task);
 303       }
 304     },
 305
 306     beginEdit: function (event: Event) {
 307       const task = this.currentTask();
 308       if (!task) return;
 309       const input = document.createElement("input");
 310       const desc = task.getElementsByClassName("desc")[0];
 311       const oldDescription = desc.textContent!;
 312       task.setAttribute("data-description", oldDescription);
 313       input.value = oldDescription;
 314       input.addEventListener("blur", this.completeEdit, { once: true });
 315       desc.textContent = "";
 316       task.insertBefore(input, task.firstChild);
 317       input.focus();
 318       event.preventDefault();
 319     },
 320
 321     beginTagEdit: function (event: Event) {
 322       const task = this.currentTask();
 323       if (!task) return;
 324       const input = document.createElement("input");
 325       input.classList.add("tag");
 326       input.addEventListener("blur", this.completeTagEdit, { once: true });
 327       input.value = lastTagNameEntered;
 328       task.appendChild(input);
 329       input.focus();
 330       input.select();
 331       event.preventDefault();
 332     },
 333
 334     completeEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
 335       const input = event.target as HTMLInputElement;
 336       const task = input.parentElement!;
 337       const desc = task.getElementsByClassName("desc")[0];
 338       const oldDescription = task.getAttribute("data-description")!;
 339       const newDescription = input.value;
 340       input.removeEventListener("blur", this.completeEdit);
 341       task.removeChild(input);
 342       task.removeAttribute("data-description");
 343       task.focus();
 344       if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
 345         desc.textContent = oldDescription;
 346       } else {
 347         ui.edit(task.getAttribute("id")!, newDescription, oldDescription);
 348       }
 349     },
 350
 351     completeTagEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
 352       const input = event.target as HTMLInputElement;
 353       const task = input.parentElement!;
 354       const newTagName = input.value;
 355       input.removeEventListener("blur", this.completeTagEdit);
 356       task.removeChild(input);
 357       task.focus();
 358       if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !model.hasTag(task, newTagName)) {
 359         ui.addTag(task.getAttribute("id")!, newTagName);
 360         lastTagNameEntered = newTagName;
 361       }
 362     },
 363
 364     currentTag: function (): Element | null {
 365       var target = document.activeElement;
 366       if (!target) return null;
 367       if (target.classList.contains("task")) {
 368         const tags = target.getElementsByClassName("tag");
 369         target = tags[tags.length - 1];
 370       }
 371       if (!target || !target.classList.contains("tag")) return null;
 372       return target;
 373     },
 374
 375     currentTask: function (): HTMLElement | null {
 376       var target = document.activeElement;
 377       if (!target) return null;
 378       if (target.classList.contains("tag")) target = target.parentElement!;
 379       return target as HTMLElement;
 380     },
 381
 382     firstVisibleTask: function (root: Element | null = null) {
 383       if (root === null) root = document.body;
 384       for (const task of root.getElementsByClassName("task")) {
 385         const state = task.getAttribute("data-state");
 386         if (
 387           task instanceof HTMLElement &&
 388           (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
 389           !task.classList.contains("hide")
 390         ) {
 391           return task;
 392         }
 393       }
 394     },
 395
 396     focusTaskNameInput: function (event: Event) {
 397       taskFocusedBeforeJumpingToInput = this.currentTask();
 398       document.getElementById("taskName")!.focus();
 399       window.scroll(0, 0);
 400       event.preventDefault();
 401     },
 402
 403     visibleTaskAtOffset(task: Element, offset: number): Element {
 404       var cursor: Element | null = task;
 405       var valid_cursor = cursor;
 406       const increment = offset / Math.abs(offset);
 407       while (true) {
 408         cursor = increment > 0 ? cursor.nextElementSibling : cursor.previousElementSibling;
 409         if (!cursor || !(cursor instanceof HTMLElement)) break;
 410         const state = cursor.getAttribute("data-state")!;
 411         if (
 412           (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
 413           !cursor.classList.contains("hide")
 414         ) {
 415           offset -= increment;
 416           valid_cursor = cursor;
 417         }
 418         if (Math.abs(offset) < 0.5) break;
 419       }
 420       return valid_cursor;
 421     },
 422
 423     jumpCursor: function (position: number) {
 424       const first = this.firstVisibleTask();
 425       if (!first) return;
 426       const dest = this.visibleTaskAtOffset(first, position - 1);
 427       if (dest instanceof HTMLElement) dest.focus();
 428     },
 429
 430     makeBottomPriority: function (task: Element | null = null) {
 431       if (!task) task = this.currentTask();
 432       if (!task) return;
 433       this.setPriority(task, document.getElementById("tasks")!.lastElementChild, null);
 434     },
 435
 436     makeTopPriority: function (task: Element | null = null) {
 437       if (!task) task = this.currentTask();
 438       if (!task) return;
 439       ui.setPriority(task.getAttribute("id")!, clock.now(), model.getPriority(task));
 440       task instanceof HTMLElement && task.focus();
 441     },
 442
 443     moveCursorLeft: function () {
 444       const active = this.currentTask();
 445       if (!active) return false;
 446       if (active.parentElement!.classList.contains("task")) {
 447         active.parentElement!.focus();
 448       }
 449     },
 450
 451     moveCursorRight: function () {
 452       const active = this.currentTask();
 453       if (!active) return false;
 454       (this.firstVisibleTask(active) as HTMLElement | null)?.focus();
 455     },
 456
 457     moveCursorVertically: function (offset: number): boolean {
 458       const active = this.currentTask();
 459       if (!active) return false;
 460       const dest = this.visibleTaskAtOffset(active, offset);
 461       if (dest !== active && dest instanceof HTMLElement) {
 462         dest.focus();
 463         return true;
 464       }
 465       return false;
 466     },
 467
 468     moveTask: function (offset: number) {
 469       const active = this.currentTask();
 470       if (!active) return;
 471       const dest = this.visibleTaskAtOffset(active, offset);
 472       if (dest === active) return; // Already extremal
 473       var onePastDest: Element | null = this.visibleTaskAtOffset(dest, offset / Math.abs(offset));
 474       if (onePastDest == dest) onePastDest = null; // Will become extremal
 475       if (offset > 0) {
 476         this.setPriority(active, dest, onePastDest);
 477       } else {
 478         this.setPriority(active, onePastDest, dest);
 479       }
 480     },
 481
 482     removeTag: function () {
 483       const target = this.currentTag();
 484       if (!target) return;
 485       ui.removeTag(target.parentElement!.getAttribute("id")!, target.textContent!);
 486     },
 487
 488     resetTagView: function () {
 489       currentTagView = null;
 490       const taskList = document.getElementById("tasks")!;
 491       for (const task of Array.from(document.getElementsByClassName("task"))) {
 492         task.classList.remove("hide");
 493         if (task.parentElement !== taskList) {
 494           model.insertInPriorityOrder(task, taskList);
 495         }
 496       }
 497     },
 498
 499     resetView: function () {
 500       this.setView("todo");
 501       this.resetTagView();
 502     },
 503
 504     returnFocusAfterInput: function (): boolean {
 505       if (taskFocusedBeforeJumpingToInput) {
 506         taskFocusedBeforeJumpingToInput.focus();
 507         return true;
 508       }
 509       return false;
 510     },
 511
 512     // Change task's priority to be between other tasks a and b.
 513     setPriority: function (task: Element, a: Element | null, b: Element | null) {
 514       const aPriority = a === null ? clock.now() : model.getPriority(a);
 515       const bPriority = b === null ? 0 : model.getPriority(b);
 516       console.assert(aPriority > bPriority, aPriority, ">", bPriority);
 517       const span = aPriority - bPriority;
 518       const newPriority = bPriority + 0.1 * span + 0.8 * span * Math.random();
 519       console.assert(aPriority > newPriority && newPriority > bPriority, aPriority, ">", newPriority, ">", bPriority);
 520       const newPriorityRounded = Math.round(newPriority);
 521       const okToRound = aPriority > newPriorityRounded && newPriorityRounded > bPriority;
 522       ui.setPriority(task.getAttribute("id")!, okToRound ? newPriorityRounded : newPriority, model.getPriority(task));
 523       task instanceof HTMLElement && task.focus();
 524     },
 525
 526     setState: function (newState: string) {
 527       const task = this.currentTask();
 528       if (!task) return;
 529       const oldState = task.getAttribute("data-state")!;
 530       if (newState === oldState) return;
 531       const createTimestamp = task.getAttribute("id")!;
 532       if (currentViewState !== "all" || newState == "deleted") {
 533         this.moveCursorVertically(1) || this.moveCursorVertically(-1);
 534       }
 535       return ui.setState(createTimestamp, newState, oldState);
 536     },
 537
 538     setTagView: function (tag: string | null = null) {
 539       if (tag === null) {
 540         const target = this.currentTag();
 541         if (!target) return;
 542         tag = target.textContent!;
 543       }
 544
 545       if (currentTagView !== null) {
 546         this.resetTagView();
 547       }
 548
 549       const tasksWithTag = new Map();
 550       for (const task of document.getElementsByClassName("task")) {
 551         if (model.hasTag(task, tag)) {
 552           tasksWithTag.set(task.getElementsByClassName("desc")[0].textContent, [model.getPriority(task), task]);
 553         }
 554       }
 555
 556       function highestPrioritySuperTask(t: Element) {
 557         var maxPriority = -1;
 558         var superTask = null;
 559         for (const child of t.getElementsByClassName("tag")) {
 560           const e = tasksWithTag.get(child.textContent);
 561           if (e !== undefined && e[0] > maxPriority) {
 562             maxPriority = e[0];
 563             superTask = e[1];
 564           }
 565         }
 566         return superTask;
 567       }
 568
 569       for (const task of Array.from(document.getElementsByClassName("task"))) {
 570         if (model.hasTag(task, tag)) {
 571           task.classList.remove("hide");
 572         } else {
 573           const superTask = highestPrioritySuperTask(task);
 574           if (superTask !== null) {
 575             model.insertInPriorityOrder(task, superTask);
 576           } else {
 577             task.classList.add("hide");
 578           }
 579         }
 580       }
 581
 582       currentTagView = tag;
 583     },
 584
 585     setView: function (state: string) {
 586       const sheet = (document.getElementById("viewStyle") as HTMLStyleElement).sheet!;
 587       if (state === "all") {
 588         sheet.insertRule(`.task[data-state=deleted] { display: none }`);
 589       } else {
 590         sheet.insertRule(`.task:not([data-state=${state}]) { display: none }`);
 591       }
 592       sheet.insertRule(`:root { --view-state-indicator-color: ${viewColors[state]}; }`);
 593       sheet.removeRule(2);
 594       sheet.removeRule(2);
 595       currentViewState = state;
 596       if (this.currentTask()?.getAttribute("data-state") !== state) {
 597         this.firstVisibleTask()?.focus();
 598       }
 599     },
 600
 601     setUntaggedView: function () {
 602       if (currentTagView !== null) {
 603         this.resetTagView();
 604       }
 605       for (const task of document.getElementsByClassName("task")) {
 606         if (task.getElementsByClassName("tag").length === 0) {
 607           task.classList.remove("hide");
 608         } else {
 609           task.classList.add("hide");
 610         }
 611       }
 612     },
 613
 614     undo: function () {
 615       const ret = ui.undo();
 616       if (ret && ret instanceof HTMLElement) ret.focus();
 617     },
 618     redo: function () {
 619       const ret = ui.redo();
 620       if (ret && ret instanceof HTMLElement) ret.focus();
 621     },
 622   };
 623 }
 624 const browserUI = BrowserUI();
 625
 626 const scrollIncrement = 60;
 627 enum InputState {
 628   Root,
 629   S,
 630   V,
 631   VS,
 632 }
 633 var inputState = InputState.Root;
 634 var inputCount: number | null = null;
 635
 636 function handleKey(event: any) {
 637   if (["Alt", "Control", "Meta", "Shift"].includes(event.key)) return;
 638   if (event.target.tagName === "INPUT") {
 639     if (event.target.id === "taskName") {
 640       if (event.key == "Enter") return browserUI.addTask(event);
 641       if (event.key == "Escape") return browserUI.returnFocusAfterInput();
 642     } else if (event.target.classList.contains("tag")) {
 643       if (event.key == "Enter") return browserUI.completeTagEdit(event);
 644       if (event.key == "Escape") return browserUI.completeTagEdit(event, CommitOrAbort.Abort);
 645     } else {
 646       if (event.key == "Enter") return browserUI.completeEdit(event);
 647       if (event.key == "Escape") return browserUI.completeEdit(event, CommitOrAbort.Abort);
 648     }
 649   } else {
 650     if (inputState === InputState.Root) {
 651       if ("0" <= event.key && event.key <= "9") {
 652         return (inputCount = (inputCount ?? 0) * 10 + parseInt(event.key));
 653       }
 654       try {
 655         if (event.ctrlKey) {
 656           if (event.key == "e") return window.scrollBy(0, (inputCount ?? 1) * scrollIncrement);
 657           if (event.key == "y") return window.scrollBy(0, (inputCount ?? 1) * -scrollIncrement);
 658         } else {
 659           if (event.key == "h") return browserUI.moveCursorLeft();
 660           if (event.key == "l") return browserUI.moveCursorRight();
 661           if (event.key == "j") return browserUI.moveCursorVertically(inputCount ?? 1);
 662           if (event.key == "k") return browserUI.moveCursorVertically(-(inputCount ?? 1));
 663           if (event.key == "J") return browserUI.moveTask(inputCount ?? 1);
 664           if (event.key == "K") return browserUI.moveTask(-(inputCount ?? 1));
 665           if (event.key == "G") return browserUI.jumpCursor(inputCount ?? MAX_SAFE_INTEGER);
 666           if (event.key == "T") return browserUI.makeTopPriority();
 667           if (event.key == "n") return browserUI.focusTaskNameInput(event);
 668           if (event.key == "c") return browserUI.setState("cancelled");
 669           if (event.key == "d") return browserUI.setState("done");
 670           if (event.key == "q") return browserUI.setState("todo");
 671           if (event.key == "s") return (inputState = InputState.S);
 672           if (event.key == "w") return browserUI.setState("waiting");
 673           if (event.key == "X") return browserUI.setState("deleted");
 674           if (event.key == "x") return browserUI.removeTag();
 675           if (event.key == "u") return browserUI.undo();
 676           if (event.key == "r") return browserUI.redo();
 677           if (event.key == "e") return browserUI.beginEdit(event);
 678           if (event.key == "t") return browserUI.beginTagEdit(event);
 679           if (event.key == "v") return (inputState = InputState.V);
 680         }
 681       } finally {
 682         inputCount = null;
 683       }
 684     } else if (inputState === InputState.S) {
 685       inputState = InputState.Root;
 686       if (event.key == "m") return browserUI.setState("someday-maybe");
 687     } else if (inputState === InputState.V) {
 688       inputState = InputState.Root;
 689       if (event.key == "a") return browserUI.setView("all");
 690       if (event.key == "c") return browserUI.setView("cancelled");
 691       if (event.key == "d") return browserUI.setView("done");
 692       if (event.key == "i") return browserUI.setUntaggedView();
 693       if (event.key == "p") return browserUI.setTagView("Project");
 694       if (event.key == "q") return browserUI.setView("todo");
 695       if (event.key == "s") return (inputState = InputState.VS);
 696       if (event.key == "T") return browserUI.resetTagView();
 697       if (event.key == "t") return browserUI.setTagView();
 698       if (event.key == "u") return browserUI.setUntaggedView();
 699       if (event.key == "v") return browserUI.resetView();
 700       if (event.key == "w") return browserUI.setView("waiting");
 701       if (event.key == "x") return browserUI.setView("deleted");
 702     } else if (inputState === InputState.VS) {
 703       inputState = InputState.Root;
 704       if (event.key == "m") return browserUI.setView("someday-maybe");
 705     }
 706   }
 707 }
 708
 709 function browserInit() {
 710   log.replay();
 711   browserUI.firstVisibleTask()?.focus();
 712   document.body.addEventListener("keydown", handleKey, { capture: false });
 713 }