-var tasks: string[] = [];
+// Typescript doesn't know about MAX_SAFE_INTEGER?? This was supposed to be
+// fixed in typescript 2.0.1 in 2016, but is not working for me in typescript
+// 4.2.4 in 2022. :( https://github.com/microsoft/TypeScript/issues/9937
+//const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER;
+const MAX_SAFE_INTEGER = 9007199254740991;
-function createViewTask(task: string) {
- const viewTask = document.createElement("div");
- viewTask.appendChild(document.createTextNode(task));
- viewTask.setAttribute("tabindex", "0");
- return viewTask;
+// A sane split that splits N *times*, leaving the last chunk unsplit.
+function splitN(str: string, delimiter: string, limit: number = MAX_SAFE_INTEGER): string[] {
+ if (limit < 1) {
+ return [str];
+ }
+ const at = str.indexOf(delimiter);
+ return at === -1 ? [str] : [str.substring(0, at)].concat(splitN(str.substring(at + delimiter.length), delimiter, limit - 1));
}
-function updateView() {
- tasks.forEach((t) => document.getElementById(t) || document.body.appendChild(createViewTask(t)));
+const Model = {
+ addTask: function (timestamp: string, description: string) {
+ document.getElementById("tasks")!.appendChild(this.createTask(timestamp, description)).focus();
+ },
+
+ createTask: function (timestamp: string, description: string) {
+ const task = document.createElement("div");
+ task.appendChild(document.createTextNode(description));
+ task.setAttribute("class", "task");
+ task.setAttribute("tabindex", "0");
+ task.setAttribute("data-created", timestamp);
+ return task;
+ },
+
+ destroyTask: function (createTimestamp: string) {
+ const task = this.getTask(createTimestamp);
+ if (task) {
+ task.parentElement!.removeChild(task);
+ }
+ },
+
+ getTask: function (createTimestamp: string) {
+ for (const task of document.getElementsByClassName("task")) {
+ if (task.getAttribute("data-created") === createTimestamp) {
+ return task;
+ }
+ }
+ },
+
+ setState: function (stateTimestamp: string, createTimestamp: string, state: string) {
+ const task = this.getTask(createTimestamp);
+ if (task) {
+ task.setAttribute(`data-${state}`, stateTimestamp);
+ if (task instanceof HTMLElement) {
+ task.style.display = "none"; // Until view filtering
+ }
+ }
+ },
+};
+
+function Log(prefix: string = "vp-") {
+ var next_log_index = 0;
+ return {
+ apply: function (entry: string) {
+ const [timestamp, command, data] = splitN(entry, " ", 2);
+ if (command == "Create") {
+ Model.addTask(timestamp, data);
+ }
+ if (command == "Destroy") {
+ Model.destroyTask(data.split(" ", 1)[0]);
+ }
+ if (command == "State") {
+ const [createTimestamp, state] = splitN(data, " ", 1);
+ Model.setState(timestamp, createTimestamp, state);
+ }
+ },
+
+ record: function (entry: string) {
+ window.localStorage.setItem(`${prefix}${next_log_index++}`, entry);
+ },
+
+ recordAndApply: function (entry: string) {
+ this.record(entry);
+ this.apply(entry);
+ },
+
+ replay: function () {
+ while (true) {
+ const entry = window.localStorage.getItem(`${prefix}${next_log_index}`);
+ if (entry === null) {
+ break;
+ }
+ this.apply(entry);
+ next_log_index++;
+ }
+ },
+ };
}
+const log = Log();
+
+const UI = {
+ addTask: function (description: string) {
+ log.recordAndApply(`${Date.now()} Create ${description}`);
+ },
+ destroyTask: function (createTimestamp: string) {
+ log.recordAndApply(`${Date.now()} Destroy ${createTimestamp} ${Model.getTask(createTimestamp)?.textContent}`);
+ },
+ setState: function (createTimestamp: string, state: string) {
+ log.recordAndApply(`${Date.now()} State ${createTimestamp} ${state}`);
+ },
+};
+
+const BrowserUI = {
+ addTask: function (form: any) {
+ if (form.taskName.value) {
+ UI.addTask(form.taskName.value);
+ form.taskName.value = "";
+ }
+ return false;
+ },
+
+ destroyTask: function () {
+ const createTimestamp = document.activeElement?.getAttribute("data-created");
+ this.moveCursor(1) || this.moveCursor(-1);
+ return UI.destroyTask(createTimestamp!);
+ },
+
+ focusTaskNameInput: function (event: any) {
+ document.getElementById("taskName")!.focus();
+ 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;
+ if (cursor.style.display !== "none") {
+ offset -= increment;
+ valid_cursor = cursor;
+ }
+ if (Math.abs(offset) < 0.5) break;
+ }
+ return valid_cursor;
+ },
+
+ moveCursor: function (offset: number): boolean {
+ const active = document.activeElement;
+ if (!active) return false;
+ const dest = this.visibleTaskAtOffset(active, offset);
+ if (dest !== active && dest instanceof HTMLElement) {
+ dest.focus();
+ return true;
+ }
+ return false;
+ },
+
+ setState: function (state: string) {
+ const createTimestamp = document.activeElement?.getAttribute("data-created");
+ this.moveCursor(1) || this.moveCursor(-1);
+ return UI.setState(createTimestamp!, state);
+ },
+};
-function addTask(task: string) {
- tasks.push(task);
- updateView();
+function handleKey(event: any) {
+ if (event.target.tagName !== "INPUT") {
+ if (event.key == "j") return BrowserUI.moveCursor(1);
+ if (event.key == "k") return BrowserUI.moveCursor(-1);
+ if (event.key == "n") return BrowserUI.focusTaskNameInput(event);
+ if (event.key == "s") return BrowserUI.setState("someday-maybe");
+ if (event.key == "w") return BrowserUI.setState("waiting");
+ if (event.key == "d") return BrowserUI.setState("done");
+ if (event.key == "c") return BrowserUI.setState("cancelled");
+ if (event.key == "X") return BrowserUI.destroyTask();
+ }
}
-function browserCreateTask(form: any) {
- addTask(form.taskName.value);
- form.taskName.value = "";
- return false;
+function browserInit() {
+ document.body.addEventListener("keydown", handleKey, { capture: false });
+ log.replay();
}
projects / vopamoi / blobdiff