feat: Replace note content textarea with Tiptap rich text editor supporting markdown and slash commands.

k-notes-frontend/package.json

@@ -39,6 +39,12 @@
     "@radix-ui/react-tooltip": "^1.2.8",
     "@tailwindcss/vite": "^4.1.18",
     "@tanstack/react-query": "^5.90.12",
+    "@tiptap/extension-placeholder": "^3.14.0",
+    "@tiptap/extension-task-item": "^3.14.0",
+    "@tiptap/extension-task-list": "^3.14.0",
+    "@tiptap/react": "^3.14.0",
+    "@tiptap/starter-kit": "^3.14.0",
+    "@tiptap/suggestion": "^3.14.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
@@ -59,11 +65,14 @@
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.4.0",
     "tailwindcss": "^4.1.18",
+    "tippy.js": "^6.3.7",
+    "tiptap-markdown": "^0.9.0",
     "vaul": "^1.1.2",
     "zod": "^4.2.1"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
+    "@tailwindcss/typography": "^0.5.19",
     "@tanstack/eslint-plugin-query": "^5.91.2",
     "@types/node": "^25.0.3",
     "@types/react": "^19.2.5",
@@ -74,6 +83,7 @@
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
     "globals": "^16.5.0",
+    "remark-gfm": "^4.0.1",
     "tw-animate-css": "^1.4.0",
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.46.4",

k-notes-frontend/src/components/editor/command-list.tsx

@@ -0,0 +1,91 @@
+
+import React, { forwardRef, useEffect, useImperativeHandle, useState } from 'react';
+import { cn } from '@/lib/utils';
+import { Heading1, Heading2, Heading3, List, ListOrdered, CheckSquare, Type, Quote, Code } from 'lucide-react';
+
+export interface CommandItemProps {
+    title: string;
+    icon: React.ReactNode;
+    command: (editor: any) => void;
+}
+
+interface CommandListProps {
+    items: CommandItemProps[];
+    command: (item: CommandItemProps) => void;
+    editor: any; // TipTap editor instance
+}
+
+export const CommandList = forwardRef((props: CommandListProps, ref) => {
+    const [selectedIndex, setSelectedIndex] = useState(0);
+
+    const selectItem = (index: number) => {
+        const item = props.items[index];
+        if (item) {
+            props.command(item);
+        }
+    };
+
+    const upHandler = () => {
+        setSelectedIndex((selectedIndex + props.items.length - 1) % props.items.length);
+    };
+
+    const downHandler = () => {
+        setSelectedIndex((selectedIndex + 1) % props.items.length);
+    };
+
+    const enterHandler = () => {
+        selectItem(selectedIndex);
+    };
+
+    useEffect(() => {
+        setSelectedIndex(0);
+    }, [props.items]);
+
+    useImperativeHandle(ref, () => ({
+        onKeyDown: ({ event }: { event: KeyboardEvent }) => {
+            if (event.key === 'ArrowUp') {
+                upHandler();
+                return true;
+            }
+
+            if (event.key === 'ArrowDown') {
+                downHandler();
+                return true;
+            }
+
+            if (event.key === 'Enter') {
+                enterHandler();
+                return true;
+            }
+
+            return false;
+        },
+    }));
+
+    return (
+        <div className="z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md animate-in fade-in-80 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2">
+            <div className="flex flex-col gap-1 p-1">
+                {props.items.map((item, index) => (
+                    <button
+                        key={index}
+                        className={cn(
+                            "relative flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none transition-colors",
+                            index === selectedIndex ? "bg-accent text-accent-foreground" : "hover:bg-accent hover:text-accent-foreground"
+                        )}
+                        onClick={() => selectItem(index)}
+                    >
+                        <div className="mr-2 flex h-4 w-4 items-center justify-center">
+                            {item.icon}
+                        </div>
+                        <span>{item.title}</span>
+                    </button>
+                ))}
+                {props.items.length === 0 && (
+                    <div className="p-2 text-sm text-muted-foreground">No results</div>
+                )}
+            </div>
+        </div>
+    );
+});
+
+CommandList.displayName = 'CommandList';

k-notes-frontend/src/components/editor/editor.tsx

@@ -0,0 +1,114 @@
+
+import { useEditor, EditorContent } from '@tiptap/react';
+import StarterKit from '@tiptap/starter-kit';
+import Placeholder from '@tiptap/extension-placeholder';
+import { Markdown } from 'tiptap-markdown';
+import { SlashCommand } from './extensions';
+import { getSuggestionItems, renderItems } from './suggestions';
+import TaskList from '@tiptap/extension-task-list';
+import TaskItem from '@tiptap/extension-task-item';
+import { cn } from '@/lib/utils';
+import { useEffect } from 'react';
+
+interface EditorProps {
+    value?: string;
+    onChange?: (value: string) => void;
+    placeholder?: string;
+    className?: string;
+}
+
+export function Editor({ value, onChange, placeholder, className }: EditorProps) {
+    const editor = useEditor({
+        extensions: [
+            StarterKit.configure({
+                bulletList: {
+                    keepMarks: true,
+                    keepAttributes: false,
+                },
+                orderedList: {
+                    keepMarks: true,
+                    keepAttributes: false,
+                },
+            }),
+            Placeholder.configure({
+                placeholder: placeholder || 'Type / for commands...',
+            }),
+            Markdown,
+            TaskList,
+            TaskItem.configure({
+                nested: true,
+            }),
+            SlashCommand.configure({
+                suggestion: {
+                    items: getSuggestionItems,
+                    render: renderItems,
+                },
+            }),
+        ],
+        content: value,
+        editorProps: {
+            attributes: {
+                class: cn(
+                    "min-h-[100px] max-h-[400px] overflow-y-auto w-full rounded-md border border-input bg-transparent px-3 py-2 text-sm shadow-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50 prose dark:prose-invert max-w-none",
+                    className
+                ),
+            },
+        },
+        onUpdate: ({ editor }) => {
+            const markdown = (editor.storage as any).markdown.getMarkdown();
+            onChange?.(markdown);
+        },
+    });
+
+    // Sync content if value changes externally (and editor is not focused? care to avoid loops)
+    useEffect(() => {
+        if (editor && value !== undefined && value !== (editor.storage as any).markdown.getMarkdown()) {
+            // Only set content if it's different to avoid cursor jumping
+            // A simple check might not be enough but good for now for initial loading
+            if (editor.getText() === "" && value !== "") {
+                editor.commands.setContent(value);
+            }
+        }
+    }, [value, editor]);
+
+
+    return (
+        <div className="relative w-full">
+            <EditorContent editor={editor} />
+            {/* 
+        TipTap styles for placeholder
+      */}
+            <style>{`
+        .tiptap p.is-editor-empty:first-child::before {
+          color: #adb5bd;
+          content: attr(data-placeholder);
+          float: left;
+          height: 0;
+          pointer-events: none;
+        }
+        
+        /* Basic Task list styles */
+        ul[data-type="taskList"] {
+            list-style: none;
+            padding: 0;
+        }
+        
+        ul[data-type="taskList"] li {
+            display: flex;
+            align-items: flex-start; /* Align checkbox with top of text */
+        }
+        
+        ul[data-type="taskList"] li > label {
+            flex: 0 0 auto;
+            margin-right: 0.5rem;
+            user-select: none;
+            margin-top: 0.15rem; /* Optical alignment */
+        }
+        
+        ul[data-type="taskList"] li > div {
+            flex: 1 1 auto;
+        }
+      `}</style>
+        </div>
+    );
+}

k-notes-frontend/src/components/editor/extensions.ts

@@ -0,0 +1,27 @@
+
+import { Extension } from '@tiptap/core';
+import Suggestion from '@tiptap/suggestion';
+
+export const SlashCommand = Extension.create({
+    name: 'slashCommand',
+
+    addOptions() {
+        return {
+            suggestion: {
+                char: '/',
+                command: ({ editor, range, props }: any) => {
+                    props.command({ editor, range });
+                },
+            },
+        };
+    },
+
+    addProseMirrorPlugins() {
+        return [
+            Suggestion({
+                editor: this.editor,
+                ...this.options.suggestion,
+            }),
+        ];
+    },
+});

k-notes-frontend/src/components/editor/suggestions.tsx

@@ -0,0 +1,128 @@
+
+import { ReactRenderer } from '@tiptap/react';
+import tippy from 'tippy.js';
+import { CommandList } from './command-list';
+import { Heading1, Heading2, Heading3, List, ListOrdered, CheckSquare, Type, Quote, Code } from 'lucide-react';
+
+export const getSuggestionItems = ({ query }: { query: string }) => {
+    return [
+        {
+            title: 'Text',
+            icon: <Type size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).setParagraph().run();
+            },
+        },
+        {
+            title: 'Heading 1',
+            icon: <Heading1 size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).setNode('heading', { level: 1 }).run();
+            },
+        },
+        {
+            title: 'Heading 2',
+            icon: <Heading2 size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).setNode('heading', { level: 2 }).run();
+            },
+        },
+        {
+            title: 'Heading 3',
+            icon: <Heading3 size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).setNode('heading', { level: 3 }).run();
+            },
+        },
+        {
+            title: 'Ordered List',
+            icon: <ListOrdered size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).toggleOrderedList().run();
+            },
+        },
+        {
+            title: 'Bullet List',
+            icon: <List size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).toggleBulletList().run();
+            },
+        },
+        {
+            title: 'Task List',
+            icon: <CheckSquare size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).toggleTaskList().run();
+            },
+        },
+        {
+            title: 'Blockquote',
+            icon: <Quote size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).toggleBlockquote().run();
+            }
+        },
+        {
+            title: 'Code Block',
+            icon: <Code size={18} />,
+            command: ({ editor, range }: any) => {
+                editor.chain().focus().deleteRange(range).toggleCodeBlock().run();
+            }
+        }
+    ].filter((item) => item.title.toLowerCase().startsWith(query.toLowerCase()));
+};
+
+export const renderItems = () => {
+    let component: any;
+    let popup: any;
+
+    return {
+        onStart: (props: any) => {
+            component = new ReactRenderer(CommandList, {
+                props,
+                editor: props.editor,
+            });
+
+            if (!props.clientRect) {
+                return;
+            }
+
+            popup = tippy('body', {
+                getReferenceClientRect: props.clientRect,
+                appendTo: () => document.body,
+                content: component.element,
+                showOnCreate: true,
+                interactive: true,
+                trigger: 'manual',
+                placement: 'bottom-start',
+            });
+        },
+
+        onUpdate(props: any) {
+            component.updateProps(props);
+
+            if (!props.clientRect) {
+                return;
+            }
+
+            popup[0].setProps({
+                getReferenceClientRect: props.clientRect,
+            });
+        },
+
+        onKeyDown(props: any) {
+            if (props.event.key === 'Escape') {
+                popup[0].hide();
+
+                return true;
+            }
+
+            return component.ref?.onKeyDown(props);
+        },
+
+        onExit() {
+            popup[0].destroy();
+            component.destroy();
+        },
+    };
+};

k-notes-frontend/src/components/note-card.tsx

@@ -11,6 +11,7 @@ import { NoteForm } from "./note-form";
 import ReactMarkdown from "react-markdown";
 import { getNoteColor } from "@/lib/constants";
 import clsx from "clsx";
+import remarkGfm from "remark-gfm";
 import { VersionHistoryDialog } from "./version-history-dialog";
 import { NoteViewDialog } from "./note-view-dialog";
 import { Checkbox } from "@/components/ui/checkbox";
@@ -116,7 +117,7 @@ export function NoteCard({ note }: NoteCardProps) {
         </CardHeader>
         <CardContent className="pb-2">
           <div className="text-sm prose dark:prose-invert prose-sm max-w-none line-clamp-4">
-            <ReactMarkdown>{note.content}</ReactMarkdown>
+            <ReactMarkdown remarkPlugins={[remarkGfm]}>{note.content}</ReactMarkdown>
           </div>
         </CardContent>
         <CardFooter className="flex flex-col items-start gap-2 pt-2">

k-notes-frontend/src/components/note-form.tsx

@@ -4,9 +4,10 @@ import { zodResolver } from "@hookform/resolvers/zod";
 import { z } from "zod";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
-import { Textarea } from "@/components/ui/textarea";
+
 import { Form, FormControl, FormField, FormItem, FormLabel, FormMessage } from "@/components/ui/form";
 import { Checkbox } from "@/components/ui/checkbox";
+import { Editor } from "@/components/editor/editor";
 
 const noteSchema = z.object({
   title: z.string().min(1, "Title is required").max(200, "Title too long"),
@@ -61,7 +62,11 @@ export function NoteForm({ defaultValues, onSubmit, isLoading, submitLabel = "Sa
             <FormItem>
               <FormLabel>Content</FormLabel>
               <FormControl>
-                <Textarea placeholder="Note content..." className="min-h-[100px] font-mono" {...field} />
+                <Editor
+                  placeholder="Note content... Type / for commands"
+                  value={field.value}
+                  onChange={field.onChange}
+                />
               </FormControl>
               <FormMessage />
             </FormItem>
@@ -93,10 +98,8 @@ export function NoteForm({ defaultValues, onSubmit, isLoading, submitLabel = "Sa
                     <div
                       key={color.name}
                       onClick={() => field.onChange(color.name)}
-                      className={`w-8 h-8 rounded-full cursor-pointer border-2 transition-all ${
-                        color.value.split(" ")[0] // Take background class
-                      } ${
-                        field.value === color.name
+                      className={`w-8 h-8 rounded-full cursor-pointer border-2 transition-all ${color.value.split(" ")[0] // Take background class
+                        } ${field.value === color.name
                           ? "border-primary scale-110"
                           : "border-transparent hover:scale-105"
                         }`}

k-notes-frontend/src/components/note-view-dialog.tsx

@@ -7,6 +7,7 @@ import { type Note } from "@/hooks/use-notes";
 import { Edit, Calendar, Pin } from "lucide-react";
 import { getNoteColor } from "@/lib/constants";
 import clsx from "clsx";
+import remarkGfm from "remark-gfm";
 
 
 interface NoteViewDialogProps {
@@ -39,7 +40,7 @@ export function NoteViewDialog({ note, open, onOpenChange, onEdit }: NoteViewDia
 
                 <div className="flex-1 min-h-0 overflow-y-auto -mx-6 px-6">
                     <div className="prose dark:prose-invert max-w-none text-base leading-relaxed break-words pb-6">
-                        <ReactMarkdown>{note.content}</ReactMarkdown>
+                        <ReactMarkdown remarkPlugins={[remarkGfm]}>{note.content}</ReactMarkdown>
                     </div>
                 </div>
 

k-notes-frontend/src/index.css

@@ -1,5 +1,6 @@
 @import "tailwindcss";
 @import "tw-animate-css";
+@plugin "@tailwindcss/typography";
 
 @custom-variant dark (&:is(.dark *));