Keep tags visually associated with their task

[vopamoi] / vopamoi.ts

diff --git a/vopamoi.ts b/vopamoi.ts
index 7c51935a2c14535444199ddb68da35ec2eca4e17..31a4cdcd858a56b7f72fe75dd1ccecbe756cb881 100644 (file)
--- a/vopamoi.ts
+++ b/vopamoi.ts
@@ -29,10 +29,19 @@ function Clock() {
 }
 const clock = Clock();
 
+// Returns a promise for a hue based on a hash of the string
+function hashHue(str: string) {
+  // Using crypto for this is overkill
+  return crypto.subtle.digest("SHA-256", new TextEncoder().encode(str)).then((buf) => (new Uint16Array(buf)[0] * 360) / 2 ** 16);
+}
+
 const Model = {
   addTask: function (timestamp: string, description: string): Element {
     const task = document.createElement("div");
-    task.appendChild(document.createTextNode(description));
+    const desc = document.createElement("span");
+    desc.textContent = description;
+    desc.classList.add("desc");
+    task.appendChild(desc);
     task.classList.add("task");
     task.setAttribute("tabindex", "0");
     task.setAttribute("data-created", timestamp);
@@ -44,10 +53,19 @@ const Model = {
   addTag: function (createTimestamp: string, tagName: string): Element | null {
     const task = this.getTask(createTimestamp);
     if (!task) return null;
+    const existingTag = this.hasTag(task, tagName);
+    if (existingTag) return existingTag;
     const tag = document.createElement("span");
     tag.appendChild(document.createTextNode(tagName));
     tag.classList.add("tag");
     tag.setAttribute("tabindex", "0");
+    hashHue(tagName).then((hue) => (tag.style.backgroundColor = `hsl(${hue},90%,45%)`));
+    for (const child of task.getElementsByClassName("tag")) {
+      if (tagName > child.textContent!) {
+        task.insertBefore(tag, child);
+        return tag;
+      }
+    }
     task.appendChild(tag);
     return tag;
   },
@@ -72,18 +90,18 @@ const Model = {
         target.setAttribute("data-description", newDescription);
       }
     } else {
-      target.textContent = newDescription;
+      target.getElementsByClassName("desc")[0].textContent = newDescription;
     }
     return target;
   },
 
-  hasTag: function (task: Element, tag: string) {
-    for (const child of task.children) {
-      if (child.classList.contains("tag") && child.textContent === tag) {
-        return true;
+  hasTag: function (task: Element, tag: string): Element | null {
+    for (const child of task.getElementsByClassName("tag")) {
+      if (child.textContent === tag) {
+        return child;
       }
     }
-    return false;
+    return null;
   },
 
   getPriority: function (task: Element): number {
@@ -213,6 +231,7 @@ enum CommitOrAbort {
 function BrowserUI() {
   var currentViewState = "todo";
   var taskFocusedBeforeJumpingToInput: HTMLElement | null = null;
+  var lastTagNameEntered = "";
   return {
     addTask: function (event: KeyboardEvent) {
       const input = <HTMLInputElement>document.getElementById("taskName");
@@ -235,11 +254,12 @@ function BrowserUI() {
       const task = document.activeElement;
       if (!task) return;
       const input = document.createElement("input");
-      const oldDescription = task.textContent!;
+      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 });
-      task.textContent = "";
+      desc.textContent = "";
       task.insertBefore(input, task.firstChild);
       input.focus();
       event.preventDefault();
@@ -251,14 +271,17 @@ function BrowserUI() {
       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);
@@ -266,7 +289,7 @@ function BrowserUI() {
       task.removeAttribute("data-description");
       task.focus();
       if (newDescription === oldDescription || resolution === CommitOrAbort.Abort) {
-        task.textContent = oldDescription;
+        desc.textContent = oldDescription;
       } else {
         ui.edit(task.getAttribute("data-created")!, newDescription, oldDescription);
       }
@@ -279,8 +302,9 @@ function BrowserUI() {
       input.removeEventListener("blur", this.completeTagEdit);
       task.removeChild(input);
       task.focus();
-      if (!Model.hasTag(task, newTagName)) {
+      if (resolution === CommitOrAbort.Commit && newTagName && !Model.hasTag(task, newTagName)) {
         ui.addTag(task.getAttribute("data-created")!, newTagName);
+        lastTagNameEntered = newTagName;
       }
     },