X-Git-Url: http://git.scottworley.com/vopamoi/blobdiff_plain/868667c1142d78afe4955a6f394e9cb661eedc54..0726872b8e043c19883d26492ce42d3411505179:/vopamoi.ts

diff --git a/vopamoi.ts b/vopamoi.ts
index 3c59226..c17a2f0 100644
--- a/vopamoi.ts
+++ b/vopamoi.ts
@@ -29,11 +29,20 @@ 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));
-    task.setAttribute("class", "task");
+    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);
     task.setAttribute("data-state", "todo");
@@ -41,20 +50,39 @@ const Model = {
     return task;
   },
 
+  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;
+  },
+
   edit: function (createTimestamp: string, newDescription: string): Element | null {
     const target = this.getTask(createTimestamp);
     if (!target) return null;
     if (target.hasAttribute("data-description")) {
       // Oh no: An edit has arrived from a replica while a local edit is in progress.
-      const input = target.children[0] as HTMLInputElement;
+      const input = target.firstChild as HTMLInputElement;
       if (
         input.value === target.getAttribute("data-description") &&
-        input.selectionStart === 0 &&
+        input.selectionStart === input.value.length &&
         input.selectionEnd === input.value.length
       ) {
         // No local changes have actually been made yet.  Change the contents of the edit box!
         input.value = newDescription;
-        input.select();
       } else {
         // No great options.
         // Prefer not to interrupt the local user's edit.
@@ -62,11 +90,20 @@ 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): Element | null {
+    for (const child of task.getElementsByClassName("tag")) {
+      if (child.textContent === tag) {
+        return child;
+      }
+    }
+    return null;
+  },
+
   getPriority: function (task: Element): number {
     if (task.hasAttribute("data-priority")) {
       return parseFloat(task.getAttribute("data-priority")!);
@@ -82,6 +119,14 @@ const Model = {
     }
   },
 
+  removeTag: function (createTimestamp: string, tagName: string) {
+    const task = this.getTask(createTimestamp);
+    if (!task) return null;
+    const tag = this.hasTag(task, tagName);
+    if (!tag) return;
+    task.removeChild(tag);
+  },
+
   setPriority: function (createTimestamp: string, priority: number): Element | null {
     const target = this.getTask(createTimestamp);
     if (!target) return null;
@@ -116,13 +161,21 @@ function Log(prefix: string = "vp-") {
         const [createTimestamp, description] = splitN(data, " ", 1);
         return Model.edit(createTimestamp, description);
       }
+      if (command == "Priority") {
+        const [createTimestamp, newPriority] = splitN(data, " ", 1);
+        return Model.setPriority(createTimestamp, parseFloat(newPriority));
+      }
       if (command == "State") {
         const [createTimestamp, state] = splitN(data, " ", 1);
         return Model.setState(timestamp, createTimestamp, state);
       }
-      if (command == "Priority") {
-        const [createTimestamp, newPriority] = splitN(data, " ", 1);
-        return Model.setPriority(createTimestamp, parseFloat(newPriority));
+      if (command == "Tag") {
+        const [createTimestamp, tag] = splitN(data, " ", 1);
+        return Model.addTag(createTimestamp, tag);
+      }
+      if (command == "Untag") {
+        const [createTimestamp, tag] = splitN(data, " ", 1);
+        return Model.removeTag(createTimestamp, tag);
       }
     },
 
@@ -149,45 +202,62 @@ function Log(prefix: string = "vp-") {
 }
 const log = Log();
 
-const undoLog: string[] = [];
+function UI() {
+  const undoLog: string[] = [];
+  return {
+    addTask: function (description: string): Element {
+      const now = clock.now();
+      undoLog.push(`State ${now} deleted`);
+      return <Element>log.recordAndApply(`${now} Create ${description}`);
+    },
+    addTag: function (createTimestamp: string, tag: string) {
+      undoLog.push(`Untag ${createTimestamp} ${tag}`);
+      return log.recordAndApply(`${clock.now()} Tag ${createTimestamp} ${tag}`);
+    },
+    edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
+      undoLog.push(`Edit ${createTimestamp} ${oldDescription}`);
+      return log.recordAndApply(`${clock.now()} Edit ${createTimestamp} ${newDescription}`);
+    },
+    setPriority: function (createTimestamp: string, newPriority: number, oldPriority: number) {
+      undoLog.push(`Priority ${createTimestamp} ${oldPriority}`);
+      return log.recordAndApply(`${clock.now()} Priority ${createTimestamp} ${newPriority}`);
+    },
+    setState: function (createTimestamp: string, newState: string, oldState: string) {
+      undoLog.push(`State ${createTimestamp} ${oldState}`);
+      return log.recordAndApply(`${clock.now()} State ${createTimestamp} ${newState}`);
+    },
+    undo: function () {
+      if (undoLog.length > 0) {
+        return log.recordAndApply(`${clock.now()} ${undoLog.pop()}`);
+      }
+    },
+  };
+}
+const ui = UI();
 
-const UI = {
-  addTask: function (description: string): Element {
-    const now = clock.now();
-    undoLog.push(`State ${now} deleted`);
-    return <Element>log.recordAndApply(`${now} Create ${description}`);
-  },
-  edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
-    undoLog.push(`Edit ${createTimestamp} ${oldDescription}`);
-    return log.recordAndApply(`${clock.now()} Edit ${createTimestamp} ${newDescription}`);
-  },
-  setPriority: function (createTimestamp: string, newPriority: number, oldPriority: number) {
-    undoLog.push(`Priority ${createTimestamp} ${oldPriority}`);
-    return log.recordAndApply(`${clock.now()} Priority ${createTimestamp} ${newPriority}`);
-  },
-  setState: function (createTimestamp: string, newState: string, oldState: string) {
-    undoLog.push(`State ${createTimestamp} ${oldState}`);
-    return log.recordAndApply(`${clock.now()} State ${createTimestamp} ${newState}`);
-  },
-  undo: function () {
-    if (undoLog.length > 0) {
-      return log.recordAndApply(`${clock.now()} ${undoLog.pop()}`);
-    }
-  },
-};
+enum CommitOrAbort {
+  Commit,
+  Abort,
+}
 
 function BrowserUI() {
   var currentViewState = "todo";
+  var taskFocusedBeforeJumpingToInput: HTMLElement | null = null;
+  var lastTagNameEntered = "";
   return {
     addTask: function (event: KeyboardEvent) {
       const input = <HTMLInputElement>document.getElementById("taskName");
-      if (input.value) {
-        const task = UI.addTask(input.value);
-        if (task && task instanceof HTMLElement) task.focus();
-        input.value = "";
-        if (event.getModifierState("Control")) {
-          this.setPriority(task, null, document.getElementsByClassName("task")[0]);
-        }
+      if (input.value.match(/^ *$/)) return;
+      const task = ui.addTask(input.value);
+      if (currentViewState === "todo") {
+        task instanceof HTMLElement && task.focus();
+      } else if (this.returnFocusAfterInput()) {
+      } else {
+        this.firstVisibleTask()?.focus();
+      }
+      input.value = "";
+      if (event.getModifierState("Control")) {
+        this.setPriority(task, null, document.getElementsByClassName("task")[0]);
       }
     },
 
@@ -195,30 +265,57 @@ 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();
+    },
+
+    beginTagEdit: function (event: Event) {
+      const task = document.activeElement;
+      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) {
+    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(task.children[0]);
+      task.removeChild(input);
       task.removeAttribute("data-description");
       task.focus();
-      if (newDescription === oldDescription) {
-        task.textContent = oldDescription;
+      if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
+        desc.textContent = oldDescription;
       } else {
-        UI.edit(task.getAttribute("data-created")!, newDescription, oldDescription);
+        ui.edit(task.getAttribute("data-created")!, newDescription, oldDescription);
+      }
+    },
+
+    completeTagEdit: function (event: Event, resolution: CommitOrAbort = CommitOrAbort.Commit) {
+      const input = event.target as HTMLInputElement;
+      const task = input.parentElement!;
+      const newTagName = input.value;
+      input.removeEventListener("blur", this.completeTagEdit);
+      task.removeChild(input);
+      task.focus();
+      if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !Model.hasTag(task, newTagName)) {
+        ui.addTag(task.getAttribute("data-created")!, newTagName);
+        lastTagNameEntered = newTagName;
       }
     },
 
@@ -231,6 +328,9 @@ function BrowserUI() {
     },
 
     focusTaskNameInput: function (event: Event) {
+      if (document.activeElement instanceof HTMLElement) {
+        taskFocusedBeforeJumpingToInput = document.activeElement;
+      }
       document.getElementById("taskName")!.focus();
       event.preventDefault();
     },
@@ -276,6 +376,14 @@ function BrowserUI() {
       }
     },
 
+    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 ? 0 : Model.getPriority(a);
@@ -286,7 +394,7 @@ function BrowserUI() {
       console.assert(aPriority < newPriority && newPriority < bPriority, aPriority, "<", newPriority, "<", bPriority);
       const newPriorityRounded = Math.round(newPriority);
       const okToRound = aPriority < newPriorityRounded && newPriorityRounded < bPriority;
-      UI.setPriority(task.getAttribute("data-created")!, okToRound ? newPriorityRounded : newPriority, Model.getPriority(task));
+      ui.setPriority(task.getAttribute("data-created")!, okToRound ? newPriorityRounded : newPriority, Model.getPriority(task));
       task instanceof HTMLElement && task.focus();
     },
 
@@ -297,13 +405,15 @@ function BrowserUI() {
       if (newState === oldState) return;
       const createTimestamp = task.getAttribute("data-created")!;
       this.moveCursor(1) || this.moveCursor(-1);
-      return UI.setState(createTimestamp, newState, oldState);
+      return ui.setState(createTimestamp, newState, oldState);
     },
 
-    setView: function (state: string) {
+    setView: function (state: string, color: string) {
       const sheet = (document.getElementById("viewStyle") as HTMLStyleElement).sheet!;
       sheet.insertRule(`.task:not([data-state=${state}]) { display: none }`);
-      sheet.removeRule(1);
+      sheet.insertRule(`:root { --view-state-indicator-color: ${color}; }`);
+      sheet.removeRule(2);
+      sheet.removeRule(2);
       currentViewState = state;
       if (document.activeElement?.getAttribute("data-state") !== state) {
         this.firstVisibleTask()?.focus();
@@ -311,7 +421,7 @@ function BrowserUI() {
     },
 
     undo: function () {
-      const ret = UI.undo();
+      const ret = ui.undo();
       if (ret && ret instanceof HTMLElement) ret.focus();
     },
   };
@@ -328,8 +438,13 @@ function handleKey(event: any) {
   if (event.target.tagName === "INPUT") {
     if (event.target.id === "taskName") {
       if (event.key == "Enter") return browserUI.addTask(event);
+      if (event.key == "Escape") return browserUI.returnFocusAfterInput();
+    } else if (event.target.classList.contains("tag")) {
+      if (event.key == "Enter") return browserUI.completeTagEdit(event);
+      if (event.key == "Escape") return browserUI.completeTagEdit(event, CommitOrAbort.Abort);
     } else {
       if (event.key == "Enter") return browserUI.completeEdit(event);
+      if (event.key == "Escape") return browserUI.completeEdit(event, CommitOrAbort.Abort);
     }
   } else {
     if (inputState === InputState.Command) {
@@ -340,27 +455,29 @@ function handleKey(event: any) {
       if (event.key == "n") return browserUI.focusTaskNameInput(event);
       if (event.key == "c") return browserUI.setState("cancelled");
       if (event.key == "d") return browserUI.setState("done");
+      if (event.key == "q") return browserUI.setState("todo");
       if (event.key == "s") return browserUI.setState("someday-maybe");
-      if (event.key == "t") return browserUI.setState("todo");
       if (event.key == "w") return browserUI.setState("waiting");
       if (event.key == "X") return browserUI.setState("deleted");
       if (event.key == "u") return browserUI.undo();
       if (event.key == "e") return browserUI.beginEdit(event);
+      if (event.key == "t") return browserUI.beginTagEdit(event);
       if (event.key == "v") return (inputState = InputState.View);
     } else if (inputState === InputState.View) {
       inputState = InputState.Command;
-      if (event.key == "c") return browserUI.setView("cancelled");
-      if (event.key == "d") return browserUI.setView("done");
-      if (event.key == "s") return browserUI.setView("someday-maybe");
-      if (event.key == "t") return browserUI.setView("todo");
-      if (event.key == "w") return browserUI.setView("waiting");
-      if (event.key == "x") return browserUI.setView("deleted");
+      if (event.key == "c") return browserUI.setView("cancelled", "Red");
+      if (event.key == "d") return browserUI.setView("done", "LawnGreen");
+      if (event.key == "q") return browserUI.setView("todo", "White");
+      if (event.key == "s") return browserUI.setView("someday-maybe", "DeepSkyBlue");
+      if (event.key == "v") return browserUI.setView("todo", "White");
+      if (event.key == "w") return browserUI.setView("waiting", "MediumOrchid");
+      if (event.key == "x") return browserUI.setView("deleted", "Black");
     }
   }
 }
 
 function browserInit() {
-  document.body.addEventListener("keydown", handleKey, { capture: false });
   log.replay();
   browserUI.firstVisibleTask()?.focus();
+  document.body.addEventListener("keydown", handleKey, { capture: false });
 }