+const log = Log();
+
+function UI() {
+ const undoLog: string[][] = [];
+ const redoLog: string[][] = [];
+ function perform(forward: string, reverse: string) {
+ undoLog.push([reverse, forward]);
+ return log.recordAndApply(`${clock.now()} ${forward}`);
+ }
+ return {
+ addTask: function (description: string): Element {
+ const now = clock.now();
+ undoLog.push([`State ${now} deleted`, `State ${now} todo`]);
+ return <Element>log.recordAndApply(`${now} Create ${description}`);
+ },
+ addTag: function (createTimestamp: string, tag: string) {
+ return perform(`Tag ${createTimestamp} ${tag}`, `Untag ${createTimestamp} ${tag}`);
+ },
+ edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
+ return perform(`Edit ${createTimestamp} ${newDescription}`, `Edit ${createTimestamp} ${oldDescription}`);
+ },
+ editContent: function (createTimestamp: string, newContent: string, oldContent: string) {
+ return perform(`EditContent ${createTimestamp} ${newContent}`, `EditContent ${createTimestamp} ${oldContent}`);
+ },
+ removeTag: function (createTimestamp: string, tag: string) {
+ return perform(`Untag ${createTimestamp} ${tag}`, `Tag ${createTimestamp} ${tag}`);
+ },
+ setPriority: function (createTimestamp: string, newPriority: number, oldPriority: number) {
+ return perform(`Priority ${createTimestamp} ${newPriority}`, `Priority ${createTimestamp} ${oldPriority}`);
+ },
+ setState: function (createTimestamp: string, newState: string, oldState: string) {
+ return perform(`State ${createTimestamp} ${newState}`, `State ${createTimestamp} ${oldState}`);
+ },
+ undo: function () {
+ const entry = undoLog.pop();
+ if (entry) {
+ redoLog.push(entry);
+ return log.recordAndApply(`${clock.now()} ${entry[0]}`);
+ }
+ },
+ redo: function () {
+ const entry = redoLog.pop();
+ if (entry) {
+ undoLog.push(entry);
+ return log.recordAndApply(`${clock.now()} ${entry[1]}`);
+ }
+ },
+ };
+}
+const ui = UI();
+
+enum CommitOrAbort {
+ Commit,
+ Abort,
+}
+
+function BrowserUI() {
+ const viewColors: { [key: string]: string } = {
+ all: "Gold",
+ cancelled: "Red",
+ deleted: "Black",
+ done: "LawnGreen",
+ "someday-maybe": "DeepSkyBlue",
+ todo: "White",
+ waiting: "MediumOrchid",
+ };
+ var currentTagView: string | null = null;
+ var currentViewState = "todo";
+ var taskFocusedBeforeJumpingToInput: HTMLElement | null = null;
+ var lastTagNameEntered = "";
+ return {
+ addTask: function (event: KeyboardEvent) {
+ const input = <HTMLInputElement>document.getElementById("taskName");
+ if (input.value.match(/^ *$/)) return;
+ const task = ui.addTask(input.value);
+ if (currentViewState === "todo" || currentViewState === "all") {
+ task instanceof HTMLElement && task.focus();
+ } else if (this.returnFocusAfterInput()) {
+ } else {
+ this.firstVisibleTask()?.focus();
+ }
+ input.value = "";
+ if (event.getModifierState("Control")) {
+ this.makeBottomPriority(task);
+ }
+ },
+
+ beginEdit: function (event: Event) {
+ const task = this.currentTask();
+ if (!task) return;
+ const input = document.createElement("input");
+ const desc = task.getElementsByClassName("desc")[0];
+ const oldDescription = desc.textContent!;
+ task.setAttribute("data-description", oldDescription);
+ input.value = oldDescription;
+ input.addEventListener("blur", this.completeEdit, { once: true });
+ desc.textContent = "";
+ task.insertBefore(input, task.firstChild);
+ input.focus();
+ event.preventDefault();
+ },
+
+ beginEditContent: function (event: Event) {
+ const task = this.currentTask();
+ if (!task) return;
+ const input = document.createElement("textarea");
+ const content = task.getElementsByClassName("content")[0];
+ const oldContent = content?.textContent ?? "";
+ task.setAttribute("data-content", oldContent);
+ input.value = oldContent;
+ input.addEventListener("blur", this.completeContentEdit, { once: true });
+ if (content) content.textContent = "";
+ task.appendChild(input);
+ input.focus();
+ event.preventDefault();
+ },
+
+ beginTagEdit: function (event: Event) {
+ const task = this.currentTask();
+ if (!task) return;
+ const input = document.createElement("input");
+ input.classList.add("tag");
+ input.addEventListener("blur", this.completeTagEdit, { once: true });
+ input.value = lastTagNameEntered;
+ task.appendChild(input);
+ input.focus();
+ input.select();
+ event.preventDefault();
+ },
+
+ completeEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
+ const input = event.target as HTMLInputElement;
+ const task = input.parentElement!;
+ const desc = task.getElementsByClassName("desc")[0];
+ const oldDescription = task.getAttribute("data-description")!;
+ const newDescription = input.value;
+ input.removeEventListener("blur", this.completeEdit);
+ task.removeChild(input);
+ task.removeAttribute("data-description");
+ task.focus();
+ if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
+ desc.textContent = oldDescription;
+ } else {
+ ui.edit(task.getAttribute("id")!, newDescription, oldDescription);
+ }
+ },
+
+ completeContentEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
+ const input = event.target as HTMLInputElement;
+ const task = input.parentElement!;
+ const content = task.getElementsByClassName("content")[0];
+ const oldContent = task.getAttribute("data-content")!;
+ const newContent = input.value;
+ input.removeEventListener("blur", this.completeContentEdit);
+ task.removeChild(input);
+ task.removeAttribute("data-content");
+ task.focus();
+ if (resolution === CommitOrAbort.Abort || newContent === oldContent) {
+ if (content) content.textContent = oldContent;
+ } else {
+ ui.editContent(task.getAttribute("id")!, newContent, oldContent);
+ }
+ },
+
+ completeTagEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
+ const input = event.target as HTMLInputElement;
+ const task = input.parentElement!;
+ const newTagName = input.value;
+ input.removeEventListener("blur", this.completeTagEdit);
+ task.removeChild(input);
+ task.focus();
+ if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !model.hasTag(task, newTagName)) {
+ ui.addTag(task.getAttribute("id")!, newTagName);
+ lastTagNameEntered = newTagName;
+ }
+ },
+
+ currentTag: function (): Element | null {
+ var target = document.activeElement;
+ if (!target) return null;
+ if (target.classList.contains("task")) {
+ const tags = target.getElementsByClassName("tag");
+ target = tags[tags.length - 1];
+ }
+ if (!target || !target.classList.contains("tag")) return null;
+ return target;
+ },
+
+ currentTask: function (): HTMLElement | null {
+ var target = document.activeElement;
+ if (!target) return null;
+ if (target.classList.contains("tag")) target = target.parentElement!;
+ return target as HTMLElement;
+ },
+
+ firstVisibleTask: function (root: Element | null = null) {
+ if (root === null) root = document.body;
+ for (const task of root.getElementsByClassName("task")) {
+ const state = task.getAttribute("data-state");
+ if (
+ task instanceof HTMLElement &&
+ (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
+ !task.classList.contains("hide")
+ ) {
+ return task;
+ }
+ }
+ },
+
+ focusTaskNameInput: function (event: Event) {
+ taskFocusedBeforeJumpingToInput = this.currentTask();
+ document.getElementById("taskName")!.focus();
+ window.scroll(0, 0);
+ event.preventDefault();
+ },
+
+ visibleTaskAtOffset(task: Element, offset: number): Element {
+ var cursor: Element | null = task;
+ var valid_cursor = cursor;
+ const increment = offset / Math.abs(offset);
+ while (true) {
+ cursor = increment > 0 ? cursor.nextElementSibling : cursor.previousElementSibling;
+ if (!cursor || !(cursor instanceof HTMLElement)) break;
+ const state = cursor.getAttribute("data-state")!;
+ if (
+ (state === currentViewState || (currentViewState === "all" && state !== "deleted")) &&
+ !cursor.classList.contains("hide")
+ ) {
+ offset -= increment;
+ valid_cursor = cursor;
+ }
+ if (Math.abs(offset) < 0.5) break;
+ }
+ return valid_cursor;
+ },
+
+ jumpCursor: function (position: number) {
+ const first = this.firstVisibleTask();
+ if (!first) return;
+ const dest = this.visibleTaskAtOffset(first, position - 1);
+ if (dest instanceof HTMLElement) dest.focus();
+ },
+
+ makeBottomPriority: function (task: Element | null = null) {
+ if (!task) task = this.currentTask();
+ if (!task) return;
+ this.setPriority(task, document.getElementById("tasks")!.lastElementChild, null);
+ },
+
+ makeTopPriority: function (task: Element | null = null) {
+ if (!task) task = this.currentTask();
+ if (!task) return;
+ ui.setPriority(task.getAttribute("id")!, clock.now(), model.getPriority(task));
+ task instanceof HTMLElement && task.focus();
+ },
+
+ moveCursorLeft: function () {
+ const active = this.currentTask();
+ if (!active) return false;
+ if (active.parentElement!.classList.contains("task")) {
+ active.parentElement!.focus();
+ }
+ },
+
+ moveCursorRight: function () {
+ const active = this.currentTask();
+ if (!active) return false;
+ (this.firstVisibleTask(active) as HTMLElement | null)?.focus();
+ },
+
+ moveCursorVertically: function (offset: number): boolean {
+ const active = this.currentTask();
+ if (!active) return false;
+ const dest = this.visibleTaskAtOffset(active, offset);
+ if (dest !== active && dest instanceof HTMLElement) {
+ dest.focus();
+ return true;
+ }
+ return false;
+ },
+
+ moveTask: function (offset: number) {
+ const active = this.currentTask();
+ if (!active) return;
+ const dest = this.visibleTaskAtOffset(active, offset);
+ if (dest === active) return; // Already extremal
+ var onePastDest: Element | null = this.visibleTaskAtOffset(dest, offset / Math.abs(offset));
+ if (onePastDest == dest) onePastDest = null; // Will become extremal
+ if (offset > 0) {
+ this.setPriority(active, dest, onePastDest);
+ } else {
+ this.setPriority(active, onePastDest, dest);
+ }
+ },
+
+ removeTag: function () {
+ const target = this.currentTag();
+ if (!target) return;
+ ui.removeTag(target.parentElement!.getAttribute("id")!, target.textContent!);
+ },
+
+ resetTagView: function () {
+ currentTagView = null;
+ const taskList = document.getElementById("tasks")!;
+ for (const task of Array.from(document.getElementsByClassName("task"))) {
+ task.classList.remove("hide");
+ if (task.parentElement !== taskList) {
+ model.insertInPriorityOrder(task, taskList);
+ }
+ }
+ },
+
+ resetView: function () {
+ this.setView("todo");
+ this.resetTagView();
+ },
+
+ returnFocusAfterInput: function (): boolean {
+ if (taskFocusedBeforeJumpingToInput) {
+ taskFocusedBeforeJumpingToInput.focus();
+ return true;
+ }
+ return false;
+ },
+
+ // Change task's priority to be between other tasks a and b.
+ setPriority: function (task: Element, a: Element | null, b: Element | null) {
+ const aPriority = a === null ? clock.now() : model.getPriority(a);
+ const bPriority = b === null ? 0 : model.getPriority(b);
+ console.assert(aPriority > bPriority, aPriority, ">", bPriority);
+ const span = aPriority - bPriority;
+ const newPriority = bPriority + 0.1 * span + 0.8 * span * Math.random();
+ console.assert(aPriority > newPriority && newPriority > bPriority, aPriority, ">", newPriority, ">", bPriority);
+ const newPriorityRounded = Math.round(newPriority);
+ const okToRound = aPriority > newPriorityRounded && newPriorityRounded > bPriority;
+ ui.setPriority(task.getAttribute("id")!, okToRound ? newPriorityRounded : newPriority, model.getPriority(task));
+ task instanceof HTMLElement && task.focus();
+ },
+
+ setState: function (newState: string) {
+ const task = this.currentTask();
+ if (!task) return;
+ const oldState = task.getAttribute("data-state")!;
+ if (newState === oldState) return;
+ const createTimestamp = task.getAttribute("id")!;
+ if (currentViewState !== "all" || newState == "deleted") {
+ this.moveCursorVertically(1) || this.moveCursorVertically(-1);
+ }
+ return ui.setState(createTimestamp, newState, oldState);
+ },
+
+ setTagView: function (tag: string | null = null) {
+ if (tag === null) {
+ const target = this.currentTag();
+ if (!target) return;
+ tag = target.textContent!;
+ }
+
+ if (currentTagView !== null) {
+ this.resetTagView();
+ }
+
+ const tasksWithTag = new Map();
+ for (const task of document.getElementsByClassName("task")) {
+ if (model.hasTag(task, tag)) {
+ tasksWithTag.set(task.getElementsByClassName("desc")[0].textContent, [model.getPriority(task), task]);
+ }
+ }
+
+ function highestPrioritySuperTask(t: Element) {
+ var maxPriority = -1;
+ var superTask = null;
+ for (const child of t.getElementsByClassName("tag")) {
+ const e = tasksWithTag.get(child.textContent);
+ if (e !== undefined && e[0] > maxPriority) {
+ maxPriority = e[0];
+ superTask = e[1];
+ }
+ }
+ return superTask;
+ }
+
+ for (const task of Array.from(document.getElementsByClassName("task"))) {
+ if (model.hasTag(task, tag)) {
+ task.classList.remove("hide");
+ } else {
+ const superTask = highestPrioritySuperTask(task);
+ if (superTask !== null) {
+ model.insertInPriorityOrder(task, superTask);
+ } else {
+ task.classList.add("hide");
+ }
+ }
+ }
+
+ currentTagView = tag;
+ },
+
+ setView: function (state: string) {
+ const sheet = (document.getElementById("viewStyle") as HTMLStyleElement).sheet!;
+ if (state === "all") {
+ sheet.insertRule(`.task[data-state=deleted] { display: none }`);
+ } else {
+ sheet.insertRule(`.task:not([data-state=${state}]) { display: none }`);
+ }
+ sheet.insertRule(`:root { --view-state-indicator-color: ${viewColors[state]}; }`);
+ sheet.removeRule(2);
+ sheet.removeRule(2);
+ currentViewState = state;
+ if (this.currentTask()?.getAttribute("data-state") !== state) {
+ this.firstVisibleTask()?.focus();
+ }
+ },
+
+ setUntaggedView: function () {
+ if (currentTagView !== null) {
+ this.resetTagView();
+ }
+ for (const task of document.getElementsByClassName("task")) {
+ if (task.getElementsByClassName("tag").length === 0) {
+ task.classList.remove("hide");
+ } else {
+ task.classList.add("hide");
+ }
+ }
+ },
+
+ undo: function () {
+ const ret = ui.undo();
+ if (ret && ret instanceof HTMLElement) ret.focus();
+ },
+ redo: function () {
+ const ret = ui.redo();
+ if (ret && ret instanceof HTMLElement) ret.focus();
+ },
+ };
+}
+const browserUI = BrowserUI();
+
+const scrollIncrement = 60;
+enum InputState {
+ Root,
+ S,
+ V,
+ VS,
+}
+var inputState = InputState.Root;
+var inputCount: number | null = null;
projects / vopamoi / blobdiff