mindnode-ui

# MindNode UI Build mind mapping interfaces inspired by [MindNode](https://www.mindnode.com/) — the Apple-native visual thinking app by IdeasOnCanvas GmbH. This skill encodes MindNode's design system, interaction model, and layout algorithms, adapted for React + ReactFlow + Zustand + Tailwind CSS 3. ## Key Design Principles - **Visual-first thinking** — spatial canvas for non-linear ideas, outline for linear structure - **Apple-native aesthetic** — soft rounded elements, generous whitespace, purple accent (#6C63FF) - **ADHD-friendly** — Focus mode isolates one subtree, Quick Entry captures ideas fast - **Keyboard-driven** — Tab=child, Return=sibling, arrows=navigate, no mouse required --- ## Quick Reference ### Node Shapes (8) | Shape | Key | Use Case | |-------|-----|----------| | Rounded | Default | General ideas | | Rectangle | Structured | Facts, definitions | | Pill | Stadium | Tags, labels | | Cloud | Organic | Brainstorms | | Line | Minimal | Subtitles | | Embedded | Inset | References | | Hexagon | Process | Decision points | | Octagon | Warning | Critical items | ### Essential Keyboard Shortcuts | Action | Mac | Description | |--------|-----|-------------| | New child | `Tab` | Add child to selected node | | New sibling | `Return` | Add sibling after selected | | New main | `Shift+Return` | Add root-level branch | | Edit title | `Cmd+Return` | Enter contentEditable mode | | Navigate | `Arrow keys` | Move between nodes | | Fold/unfold | `Option+.` | Toggle subtree visibility | | Cross-link | `Cmd+L` | Connect non-adjacent nodes | | Mind map view | `Cmd+1` | Switch to canvas view | | Outline view | `Cmd+2` | Switch to list view | | Delete | `Backspace` | Remove node, re-parent children | ### Theme Types | Type | Behavior | Example | |------|----------|---------| | Dynamic | Auto light/dark adaptation | Elegant, Fresh | | Static | Fixed colors | Rainbow, Goth Pastel, Twilight | | Personal | Extracted from current document | User-defined | ### Layout Directions | Direction | Root Position | Tree Expands | |-----------|---------------|-------------| | Horizontal | Left | Rightward (default) | | Vertical | Top | Downward | | Compact | Center | Outward (dense) | | Radial | Center | All directions (polar) | --- ## Reference Files Load these on demand based on what aspect of MindNode UI is needed. ### Routing Table | When working on... | Load | |---------------------|------| | Color palette, typography, visual language, Apple aesthetic | [references/design-system.md](references/design-system.md) | | Node shapes, SVG paths, contentEditable, Node Well | [references/node-types.md](references/node-types.md) | | Dynamic/static themes, per-level colors, theme gallery | [references/themes.md](references/themes.md) | | Tree layout, D3 radial, auto-arrange, flexible positioning | [references/layout-algorithms.md](references/layout-algorithms.md) | | Keyboard shortcuts, focus mode, drag, outline sync | [references/interaction-patterns.md](references/interaction-patterns.md) | | Dual view (mind map + outline), canvas, connections, export | [references/canvas-and-views.md](references/canvas-and-views.md) | | ReactFlow custom nodes/edges, Zustand store, performance | [references/reactflow-integration.md](references/reactflow-integration.md) | | Porting to Project Pilot specifically | [references/project-pilot-porting.md](references/project-pilot-porting.md) | --- ## Key Implementation Patterns ### Node Well (Primary Creation UX) The plus button appearing on hover/selection that creates a child node. This is MindNode's signature interaction — not a toolbar, not a menu, but a contextual affordance on each node. → See [references/node-types.md](references/node-types.md) for implementation details. ### D3 Radial Tree Layout Compute tree positions with `d3.tree()`, then transform to polar coordinates: ``` x = radius × cos(angle − π/2) y = radius × sin(angle − π/2) ``` → See [references/layout-algorithms.md](references/layout-algorithms.md) for full algorithm with code. ### Per-Level Hierarchical Theming Each theme defines colors per depth level: root (prominent), level 1 (branch colors, cycled from palette), level 2+ (progressively softer). Branch children inherit their parent's color family. → See [references/themes.md](references/themes.md) for theme data structures and CSS generation. ### Dual View Sync Mind map and outline views share a single data model. Changes in either view propagate immediately. Selection state syncs bidirectionally. → See [references/canvas-and-views.md](references/canvas-and-views.md) for architecture and data model. --- ## Tech Stack Assumptions This skill assumes: - **React 18** with TypeScript - **@xyflow/react v12** for the canvas (custom nodes, edges, handles) - **Zustand** for state management (single store with slices) - **Tailwind CSS 3** with CSS custom properties (`var(--color-*)`) - **D3** (`d3-hierarchy`, `d3-shape`) for tree layout computation - **No Framer Motion on ReactFlow nodes** — RF manages transforms, FM would override them For Project Pilot–specific adaptation, see [references/project-pilot-porting.md](references/project-pilot-porting.md).