Leave something focused after destroying a task

[vopamoi] / vopamoi.ts

diff --git a/vopamoi.ts b/vopamoi.ts
index 654a7a8ca325a3d0b995064232e2143ac3051524..151c5e06103d8e8f68791350c0361c56fe5f9fdf 100644 (file)
--- a/vopamoi.ts
+++ b/vopamoi.ts
@@ -14,26 +14,30 @@ function splitN(str: string, delimiter: string, limit: number = MAX_SAFE_INTEGER
 }
 
 const Model = {
-  createTask: function (description: string) {
+  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;
   },
 
-  addTask: function (description: string) {
-    document.body.appendChild(this.createTask(description)).focus();
+  addTask: function (timestamp: string, description: string) {
+    document.body.appendChild(this.createTask(timestamp, description)).focus();
   },
 
-  moveCursor: function (offset: number) {
-    var active = document.activeElement;
-    if (offset === 1 && active) {
-      active = active.nextElementSibling;
-    }
-    if (offset === -1 && active) {
-      active = active.previousElementSibling;
+  getTask: function (createTimestamp: string) {
+    for (const task of document.getElementsByClassName("task")) {
+      if (task.getAttribute("data-created") === createTimestamp) {
+        return task;
+      }
     }
-    if (active && active instanceof HTMLElement) active.focus();
+  },
+
+  destroyTask: function (createTimestamp: string) {
+    const task = this.getTask(createTimestamp);
+    task!.parentElement!.removeChild(task!);
   },
 };
 
@@ -43,7 +47,10 @@ const Log = (function () {
     apply: function (entry: string) {
       const [timestamp, command, data] = splitN(entry, " ", 2);
       if (command == "Create") {
-        Model.addTask(data);
+        Model.addTask(timestamp, data);
+      }
+      if (command == "Destroy") {
+        Model.destroyTask(data.split(" ", 1)[0]);
       }
     },
 
@@ -73,25 +80,54 @@ 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}`);
+  },
 };
 
-function handleKey(event: any) {
-  if (event.target.tagName !== "INPUT") {
-    if (event.key == "j") Model.moveCursor(1);
-    if (event.key == "k") Model.moveCursor(-1);
-    if (event.key == "c") {
-      document.getElementById("taskName")!.focus();
-      event.preventDefault();
+const BrowserUI = {
+  addTask: function (form: any) {
+    if (form.taskName.value) {
+      UI.addTask(form.taskName.value);
+      form.taskName.value = "";
     }
-  }
-}
+    return false;
+  },
 
-function browserCreateTask(form: any) {
-  if (form.taskName.value) {
-    UI.addTask(form.taskName.value);
+  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();
+  },
+
+  moveCursor: function (offset: number): boolean {
+    var active = document.activeElement;
+    if (offset === 1 && active) {
+      active = active.nextElementSibling;
+    }
+    if (offset === -1 && active) {
+      active = active.previousElementSibling;
+    }
+    if (active && active instanceof HTMLElement) {
+      active.focus();
+      return true;
+    }
+    return false;
+  },
+};
+
+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 == "c") return BrowserUI.focusTaskNameInput(event);
+    if (event.key == "X") return BrowserUI.destroyTask();
   }
-  form.taskName.value = "";
-  return false;
 }
 
 function browserInit() {