Modern web boilerplate

[vopamoi] / vopamoi.ts

diff --git a/vopamoi.ts b/vopamoi.ts
index f550fa1cbbbd1ea9fa309a60d0d5e549dd5aacf0..30efb1b2f47dc5999e1f3635be343f8ba6ed4bb0 100644 (file)
--- a/vopamoi.ts
+++ b/vopamoi.ts
@@ -35,137 +35,167 @@ function hashHue(str: string) {
   return crypto.subtle.digest("SHA-256", new TextEncoder().encode(str)).then((buf) => (new Uint16Array(buf)[0] * 360) / 2 ** 16);
 }
 
   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");
-    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");
-    const tasks = document.getElementById("tasks")!;
-    tasks.insertBefore(task, tasks.firstElementChild);
-    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(${hue},90%,45%)`));
-    for (const child of task.getElementsByClassName("tag")) {
-      if (tagName > child.textContent!) {
-        task.insertBefore(tag, child);
-        return tag;
+function Model() {
+  return {
+    addTask: function (timestamp: string, description: string): Element {
+      const task = document.createElement("div");
+      const desc = document.createElement("span");
+      desc.textContent = description;
+      desc.classList.add("desc");
+      task.appendChild(desc);
+      task.classList.add("task");
+      task.setAttribute("tabindex", "0");
+      task.setAttribute("id", timestamp);
+      task.setAttribute("data-state", "todo");
+      const tasks = document.getElementById("tasks")!;
+      tasks.insertBefore(task, tasks.firstElementChild);
+      return task;
+    },
+
+    addTag: function (createTimestamp: string, tagName: string): Element | null {
+      const task = this.getTask(createTimestamp);
+      if (!task) return null;
+      const existingTag = this.hasTag(task, tagName);
+      if (existingTag) return existingTag;
+      const tag = document.createElement("span");
+      tag.appendChild(document.createTextNode(tagName));
+      tag.classList.add("tag");
+      tag.setAttribute("tabindex", "0");
+      hashHue(tagName).then((hue) => (tag.style.backgroundColor = `hsl(${hue},90%,45%)`));
+      for (const child of task.getElementsByClassName("tag")) {
+        if (tagName > child.textContent!) {
+          task.insertBefore(tag, child);
+          return tag;
+        }

       }
       }

-    }
-    task.insertBefore(tag, task.getElementsByClassName("desc")[0]!);
-    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.getElementsByTagName("input")[0]!;
-      if (
-        input.value === target.getAttribute("data-description") &&
-        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;
+      task.insertBefore(tag, task.getElementsByClassName("desc")[0]!);
+      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.getElementsByTagName("input")[0]!;
+        if (
+          input.value === target.getAttribute("data-description") &&
+          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;
+        } else {
+          // No great options.
+          // Prefer not to interrupt the local user's edit.
+          // The remote edit is mostly lost; this mostly becomes last-write-wins.
+          target.setAttribute("data-description", newDescription);
+        }

       } else {
       } else {

-        // No great options.
-        // Prefer not to interrupt the local user's edit.
-        // The remote edit is mostly lost; this mostly becomes last-write-wins.
-        target.setAttribute("data-description", newDescription);
+        target.getElementsByClassName("desc")[0].textContent = newDescription;

       }
       }

-    } else {
-      target.getElementsByClassName("desc")[0].textContent = newDescription;
-    }
-    return target;
-  },
+      return target;
+    },

 
 

-  hasTag: function (task: Element, tag: string): Element | null {
-    for (const child of task.getElementsByClassName("tag")) {
-      if (child.textContent === tag) {
-        return child;
+    editContent: function (createTimestamp: string, newContent: string): Element | null {
+      const target = this.getTask(createTimestamp);
+      if (!target) return null;
+      if (target.hasAttribute("data-content")) {
+        // Oh no: An edit has arrived from a replica while a local edit is in progress.
+        const input = target.getElementsByTagName("textarea")[0]!;
+        if (
+          input.value === target.getAttribute("data-content") &&
+          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 = newContent;
+        } else {
+          // No great options.
+          // Prefer not to interrupt the local user's edit.
+          // The remote edit is mostly lost; this mostly becomes last-write-wins.
+          target.setAttribute("data-content", newContent);
+        }
+      } else {
+        var content = target.getElementsByClassName("content")[0];
+        if (!content) {
+          content = document.createElement("div");
+          content.classList.add("content");
+          target.appendChild(content);
+        }
+        content.textContent = newContent;

       }
       }

-    }
-    return null;
-  },
+      return target;
+    },

 
 

-  getPriority: function (task: Element): number {
-    if (task.hasAttribute("data-priority")) {
-      return parseFloat(task.getAttribute("data-priority")!);
-    }
-    return parseFloat(task.getAttribute("data-created")!);
-  },
+    hasTag: function (task: Element, tag: string): Element | null {
+      for (const child of task.getElementsByClassName("tag")) {
+        if (child.textContent === tag) {
+          return child;
+        }
+      }
+      return null;
+    },

 
 

-  getTask: function (createTimestamp: string) {
-    for (const task of document.getElementsByClassName("task")) {
-      if (task.getAttribute("data-created") === createTimestamp) {
-        return task;
+    getPriority: function (task: Element): number {
+      if (task.hasAttribute("data-priority")) {
+        return parseFloat(task.getAttribute("data-priority")!);

       }
       }

-    }
-  },
+      return parseFloat(task.getAttribute("id")!);
+    },
+
+    getTask: function (createTimestamp: string) {
+      return document.getElementById(createTimestamp);
+    },
+
+    insertInPriorityOrder: function (task: Element, dest: Element) {
+      const priority = this.getPriority(task);
+      for (const t of dest.children) {
+        if (t !== task && this.getPriority(t) < priority) {
+          dest.insertBefore(task, t);
+          return;
+        }
+      }
+      dest.appendChild(task);
+    },
+
+    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);
+      if (task instanceof HTMLElement) task.focus();
+    },

 
 

-  insertInPriorityOrder: function (task: Element, dest: Element) {
-    const priority = this.getPriority(task);
-    for (const t of dest.children) {
-      if (t !== task && this.getPriority(t) < priority) {
-        dest.insertBefore(task, t);
+    setPriority: function (createTimestamp: string, priority: number): Element | null {
+      const target = this.getTask(createTimestamp);
+      if (!target) return null;
+      target.setAttribute("data-priority", `${priority}`);
+      this.insertInPriorityOrder(target, target.parentElement!);
+      return target;
+    },
+
+    setState: function (stateTimestamp: string, createTimestamp: string, state: string) {
+      const task = this.getTask(createTimestamp);
+      if (!task) return;
+      task.setAttribute("data-state", state);
+      var date = task.getElementsByClassName("statedate")[0];
+      if (state === "todo") {
+        task.removeChild(date);

         return;
       }
         return;
       }

-    }
-    dest.appendChild(task);
-  },
-
-  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);
-    if (task instanceof HTMLElement) task.focus();
-  },
-
-  setPriority: function (createTimestamp: string, priority: number): Element | null {
-    const target = this.getTask(createTimestamp);
-    if (!target) return null;
-    target.setAttribute("data-priority", `${priority}`);
-    this.insertInPriorityOrder(target, target.parentElement!);
-    return target;
-  },
-
-  setState: function (stateTimestamp: string, createTimestamp: string, state: string) {
-    const task = this.getTask(createTimestamp);
-    if (!task) return;
-    task.setAttribute("data-state", state);
-    var date = task.getElementsByClassName("statedate")[0];
-    if (state === "todo") {
-      task.removeChild(date);
-      return;
-    }
-    if (!date) {
-      date = document.createElement("span");
-      date.classList.add("statedate");
-      task.insertBefore(date, task.firstChild);
-    }
-    const d = new Date(parseInt(stateTimestamp));
-    date.textContent = `${d.getFullYear()}-${`${d.getMonth() + 1}`.padStart(2, "0")}-${`${d.getDate()}`.padStart(2, "0")}`;
-  },
-};
+      if (!date) {
+        date = document.createElement("span");
+        date.classList.add("statedate");
+        task.insertBefore(date, task.firstChild);
+      }
+      const d = new Date(parseInt(stateTimestamp));
+      date.textContent = `${d.getFullYear()}-${`${d.getMonth() + 1}`.padStart(2, "0")}-${`${d.getDate()}`.padStart(2, "0")}`;
+    },
+  };
+}
+const model = Model();

 
 function Log(prefix: string = "vp-") {
   var next_log_index = 0;
 
 function Log(prefix: string = "vp-") {
   var next_log_index = 0;


@@ -173,27 +203,31 @@ function Log(prefix: string = "vp-") {
     apply: function (entry: string) {
       const [timestamp, command, data] = splitN(entry, " ", 2);
       if (command == "Create") {
     apply: function (entry: string) {
       const [timestamp, command, data] = splitN(entry, " ", 2);
       if (command == "Create") {

-        return Model.addTask(timestamp, data);
+        return model.addTask(timestamp, data);

       }
       if (command == "Edit") {
         const [createTimestamp, description] = splitN(data, " ", 1);
       }
       if (command == "Edit") {
         const [createTimestamp, description] = splitN(data, " ", 1);

-        return Model.edit(createTimestamp, description);
+        return model.edit(createTimestamp, description);
+      }
+      if (command == "EditContent") {
+        const [createTimestamp, content] = splitN(data, " ", 1);
+        return model.editContent(createTimestamp, content);

       }
       if (command == "Priority") {
         const [createTimestamp, newPriority] = splitN(data, " ", 1);
       }
       if (command == "Priority") {
         const [createTimestamp, newPriority] = splitN(data, " ", 1);

-        return Model.setPriority(createTimestamp, parseFloat(newPriority));
+        return model.setPriority(createTimestamp, parseFloat(newPriority));

       }
       if (command == "State") {
         const [createTimestamp, state] = splitN(data, " ", 1);
       }
       if (command == "State") {
         const [createTimestamp, state] = splitN(data, " ", 1);

-        return Model.setState(timestamp, createTimestamp, state);
+        return model.setState(timestamp, createTimestamp, state);

       }
       if (command == "Tag") {
         const [createTimestamp, tag] = splitN(data, " ", 1);
       }
       if (command == "Tag") {
         const [createTimestamp, tag] = splitN(data, " ", 1);

-        return Model.addTag(createTimestamp, tag);
+        return model.addTag(createTimestamp, tag);

       }
       if (command == "Untag") {
         const [createTimestamp, tag] = splitN(data, " ", 1);
       }
       if (command == "Untag") {
         const [createTimestamp, tag] = splitN(data, " ", 1);

-        return Model.removeTag(createTimestamp, tag);
+        return model.removeTag(createTimestamp, tag);

       }
     },
 
       }
     },
 


@@ -241,6 +275,9 @@ function UI() {
     edit: function (createTimestamp: string, newDescription: string, oldDescription: string) {
       return perform(`Edit ${createTimestamp} ${newDescription}`, `Edit ${createTimestamp} ${oldDescription}`);
     },
     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}`);
     },
     removeTag: function (createTimestamp: string, tag: string) {
       return perform(`Untag ${createTimestamp} ${tag}`, `Tag ${createTimestamp} ${tag}`);
     },


@@ -319,6 +356,21 @@ function BrowserUI() {
       event.preventDefault();
     },
 
       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;
     beginTagEdit: function (event: Event) {
       const task = this.currentTask();
       if (!task) return;


@@ -345,7 +397,24 @@ function BrowserUI() {
       if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
         desc.textContent = oldDescription;
       } else {
       if (resolution === CommitOrAbort.Abort || newDescription.match(/^ *$/) || newDescription === oldDescription) {
         desc.textContent = oldDescription;
       } else {

-        ui.edit(task.getAttribute("data-created")!, newDescription, oldDescription);
+        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);

       }
     },
 
       }
     },
 


@@ -356,8 +425,8 @@ function BrowserUI() {
       input.removeEventListener("blur", this.completeTagEdit);
       task.removeChild(input);
       task.focus();
       input.removeEventListener("blur", this.completeTagEdit);
       task.removeChild(input);
       task.focus();

-      if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !Model.hasTag(task, newTagName)) {
-        ui.addTag(task.getAttribute("data-created")!, newTagName);
+      if (resolution === CommitOrAbort.Commit && !newTagName.match(/^ *$/) && !model.hasTag(task, newTagName)) {
+        ui.addTag(task.getAttribute("id")!, newTagName);

         lastTagNameEntered = newTagName;
       }
     },
         lastTagNameEntered = newTagName;
       }
     },


@@ -377,6 +446,7 @@ function BrowserUI() {
       var target = document.activeElement;
       if (!target) return null;
       if (target.classList.contains("tag")) target = target.parentElement!;
       var target = document.activeElement;
       if (!target) return null;
       if (target.classList.contains("tag")) target = target.parentElement!;

+      if (!target.classList.contains("task")) return null;

       return target as HTMLElement;
     },
 
       return target as HTMLElement;
     },
 


@@ -437,7 +507,7 @@ function BrowserUI() {
     makeTopPriority: function (task: Element | null = null) {
       if (!task) task = this.currentTask();
       if (!task) return;
     makeTopPriority: function (task: Element | null = null) {
       if (!task) task = this.currentTask();
       if (!task) return;

-      ui.setPriority(task.getAttribute("data-created")!, clock.now(), Model.getPriority(task));
+      ui.setPriority(task.getAttribute("id")!, clock.now(), model.getPriority(task));

       task instanceof HTMLElement && task.focus();
     },
 
       task instanceof HTMLElement && task.focus();
     },
 


@@ -456,7 +526,11 @@ function BrowserUI() {
     },
 
     moveCursorVertically: function (offset: number): boolean {
     },
 
     moveCursorVertically: function (offset: number): boolean {

-      const active = this.currentTask();
+      let active = this.currentTask();
+      if (!active) {
+        this.firstVisibleTask()?.focus();
+        active = this.currentTask();
+      }

       if (!active) return false;
       const dest = this.visibleTaskAtOffset(active, offset);
       if (dest !== active && dest instanceof HTMLElement) {
       if (!active) return false;
       const dest = this.visibleTaskAtOffset(active, offset);
       if (dest !== active && dest instanceof HTMLElement) {


@@ -483,7 +557,7 @@ function BrowserUI() {
     removeTag: function () {
       const target = this.currentTag();
       if (!target) return;
     removeTag: function () {
       const target = this.currentTag();
       if (!target) return;

-      ui.removeTag(target.parentElement!.getAttribute("data-created")!, target.textContent!);
+      ui.removeTag(target.parentElement!.getAttribute("id")!, target.textContent!);

     },
 
     resetTagView: function () {
     },
 
     resetTagView: function () {


@@ -492,7 +566,7 @@ function BrowserUI() {
       for (const task of Array.from(document.getElementsByClassName("task"))) {
         task.classList.remove("hide");
         if (task.parentElement !== taskList) {
       for (const task of Array.from(document.getElementsByClassName("task"))) {
         task.classList.remove("hide");
         if (task.parentElement !== taskList) {

-          Model.insertInPriorityOrder(task, taskList);
+          model.insertInPriorityOrder(task, taskList);

         }
       }
     },
         }
       }
     },


@@ -512,15 +586,15 @@ function BrowserUI() {
 
     // Change task's priority to be between other tasks a and b.
     setPriority: function (task: Element, a: Element | null, b: Element | null) {
 
     // 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);
+      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;
       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("data-created")!, okToRound ? newPriorityRounded : newPriority, Model.getPriority(task));
+      ui.setPriority(task.getAttribute("id")!, okToRound ? newPriorityRounded : newPriority, model.getPriority(task));

       task instanceof HTMLElement && task.focus();
     },
 
       task instanceof HTMLElement && task.focus();
     },
 


@@ -529,7 +603,7 @@ function BrowserUI() {
       if (!task) return;
       const oldState = task.getAttribute("data-state")!;
       if (newState === oldState) return;
       if (!task) return;
       const oldState = task.getAttribute("data-state")!;
       if (newState === oldState) return;

-      const createTimestamp = task.getAttribute("data-created")!;
+      const createTimestamp = task.getAttribute("id")!;

       if (currentViewState !== "all" || newState == "deleted") {
         this.moveCursorVertically(1) || this.moveCursorVertically(-1);
       }
       if (currentViewState !== "all" || newState == "deleted") {
         this.moveCursorVertically(1) || this.moveCursorVertically(-1);
       }


@@ -549,8 +623,8 @@ function BrowserUI() {
 
       const tasksWithTag = new Map();
       for (const task of document.getElementsByClassName("task")) {
 
       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]);
+        if (model.hasTag(task, tag)) {
+          tasksWithTag.set(task.getElementsByClassName("desc")[0].textContent, [model.getPriority(task), task]);

         }
       }
 
         }
       }
 


@@ -568,12 +642,12 @@ function BrowserUI() {
       }
 
       for (const task of Array.from(document.getElementsByClassName("task"))) {
       }
 
       for (const task of Array.from(document.getElementsByClassName("task"))) {

-        if (Model.hasTag(task, tag)) {
+        if (model.hasTag(task, tag)) {

           task.classList.remove("hide");
         } else {
           const superTask = highestPrioritySuperTask(task);
           if (superTask !== null) {
           task.classList.remove("hide");
         } else {
           const superTask = highestPrioritySuperTask(task);
           if (superTask !== null) {

-            Model.insertInPriorityOrder(task, superTask);
+            model.insertInPriorityOrder(task, superTask);

           } else {
             task.classList.add("hide");
           }
           } else {
             task.classList.add("hide");
           }


@@ -636,7 +710,10 @@ var inputCount: number | null = null;
 
 function handleKey(event: any) {
   if (["Alt", "Control", "Meta", "Shift"].includes(event.key)) return;
 
 function handleKey(event: any) {
   if (["Alt", "Control", "Meta", "Shift"].includes(event.key)) return;

-  if (event.target.tagName === "INPUT") {
+  if (event.target.tagName === "TEXTAREA") {
+    if (event.key == "Enter" && event.ctrlKey) return browserUI.completeContentEdit(event);
+    if (event.key == "Escape") return browserUI.completeContentEdit(event, CommitOrAbort.Abort);
+  } else 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();
     if (event.target.id === "taskName") {
       if (event.key == "Enter") return browserUI.addTask(event);
       if (event.key == "Escape") return browserUI.returnFocusAfterInput();


@@ -675,6 +752,7 @@ function handleKey(event: any) {
           if (event.key == "x") return browserUI.removeTag();
           if (event.key == "u") return browserUI.undo();
           if (event.key == "r") return browserUI.redo();
           if (event.key == "x") return browserUI.removeTag();
           if (event.key == "u") return browserUI.undo();
           if (event.key == "r") return browserUI.redo();

+          if (event.key == "E") return browserUI.beginEditContent(event);

           if (event.key == "e") return browserUI.beginEdit(event);
           if (event.key == "t") return browserUI.beginTagEdit(event);
           if (event.key == "v") return (inputState = InputState.V);
           if (event.key == "e") return browserUI.beginEdit(event);
           if (event.key == "t") return browserUI.beginTagEdit(event);
           if (event.key == "v") return (inputState = InputState.V);