# macOS Features Implementation
## Overview
This document describes the implementation of native macOS features in Cocoanut:
- Native Feel (Design Language Compliance)
- Accessibility (VoiceOver Support)
- Dark Mode (Automatic Theme Switching)
- Touch Bar (MacBook Pro Integration)
- Continuity (Handoff & Universal Clipboard)
## 1. Native Feel - Design Language Compliance
### Purpose
Ensure perfect compliance with macOS design language and native appearance.
### Implementation
```rust
use cocoanut::prelude::*;
let mut feel = NativeFeel::new();
feel.set_style(NativeDesignStyle::Dark);
feel.apply_native_style(button.as_view())?;
```
### Features
- **Light Mode** - macOS light appearance
- **Dark Mode** - macOS dark appearance
- **Auto Mode** - Follows system settings
### Design Styles
```rust
pub enum DesignStyle {
Light, // Light mode
Dark, // Dark mode
Auto, // Automatic (follows system)
}
```
### Usage Example
```rust
let mut feel = NativeFeel::new();
feel.set_style(NativeDesignStyle::Light);
feel.apply_native_style(view)?;
```
## 2. Accessibility - VoiceOver Support
### Purpose
Full VoiceOver and accessibility support for users with disabilities.
### Implementation
```rust
use cocoanut::prelude::*;
let a11y = AccessibilityOptions::new()
.label("Submit Button")
.description("Click to submit the form");
a11y.apply(button.as_view())?;
```
### Features
- **Accessibility Labels** - Descriptive labels for screen readers
- **Accessibility Descriptions** - Detailed descriptions for VoiceOver
- **Automatic Detection** - Detects accessibility needs
### Usage Example
```rust
let a11y = AccessibilityOptions::new()
.label("Close")
.description("Close the current window");
a11y.apply(close_button.as_view())?;
```
### Best Practices
- Always provide meaningful labels
- Use clear, concise descriptions
- Test with VoiceOver enabled
- Support keyboard navigation
## 3. Dark Mode - Automatic Theme Switching
### Purpose
Automatic theme switching based on system appearance.
### Implementation
```rust
use cocoanut::prelude::*;
let mut dark_mode = DarkMode::new();
dark_mode.enable();
dark_mode.apply_to_view(window.as_view())?;
// Get current system appearance
let appearance = DarkMode::current_appearance();
match appearance {
SystemAppearance::Light => println!("Light mode"),
SystemAppearance::Dark => println!("Dark mode"),
}
```
### Features
- **Automatic Switching** - Responds to system theme changes
- **Current Appearance Detection** - Get current system appearance
- **Per-View Control** - Apply dark mode to specific views
### Usage Example
```rust
let mut dark_mode = DarkMode::new();
dark_mode.enable();
// Apply to window
dark_mode.apply_to_view(window.as_view())?;
// Check current appearance
if DarkMode::current_appearance() == SystemAppearance::Dark {
println!("System is in dark mode");
}
```
### System Appearances
```rust
pub enum Appearance {
Light, // Light appearance
Dark, // Dark appearance
}
```
## 4. Touch Bar - MacBook Pro Integration
### Purpose
Support for MacBook Pro Touch Bar with custom items and controls.
### Implementation
```rust
use cocoanut::prelude::*;
let mut touchbar = MacTouchBar::new();
touchbar.add_item(MacTouchBarItem::new("button1", "Click"));
touchbar.add_item(MacTouchBarItem::new("button2", "Action"));
touchbar.apply()?;
```
### Features
- **Custom Items** - Add custom Touch Bar items
- **Item Management** - Add/remove items dynamically
- **Application Integration** - Integrate with app
### Touch Bar Item
```rust
pub struct TouchBarItem {
pub identifier: String, // Unique identifier
pub label: String, // Display label
}
```
### Usage Example
```rust
let mut touchbar = MacTouchBar::new();
// Add items
touchbar.add_item(MacTouchBarItem::new("save", "Save"));
touchbar.add_item(MacTouchBarItem::new("undo", "Undo"));
touchbar.add_item(MacTouchBarItem::new("redo", "Redo"));
// Apply to app
touchbar.apply()?;
// Remove item
touchbar.remove_item("undo");
```
### Best Practices
- Keep Touch Bar items minimal (5-7 items)
- Use clear, concise labels
- Provide keyboard shortcuts
- Make items contextual
## 5. Continuity - Handoff & Universal Clipboard
### Purpose
Enable seamless handoff and clipboard sharing across Apple devices.
### Implementation
```rust
use cocoanut::prelude::*;
let mut continuity = ContinuityManager::new();
continuity.enable_handoff();
continuity.enable_clipboard();
// Get clipboard
let content = continuity.get_clipboard()?;
// Set clipboard
continuity.set_clipboard("Hello, macOS!")?;
```
### Features
- **Handoff Support** - Continue work on other Apple devices
- **Universal Clipboard** - Share clipboard across devices
- **Clipboard Management** - Get/set clipboard content
### Handoff
```rust
let mut continuity = ContinuityManager::new();
continuity.enable_handoff();
continuity.disable_handoff();
assert!(!continuity.is_handoff_enabled());
```
### Universal Clipboard
```rust
let continuity = ContinuityManager::new();
// Get clipboard content
let text = continuity.get_clipboard()?;
println!("Clipboard: {}", text);
// Set clipboard content
continuity.set_clipboard("New content")?;
```
### Usage Example
```rust
let mut continuity = ContinuityManager::new();
// Enable features
continuity.enable_handoff();
continuity.enable_clipboard();
// Copy to clipboard
continuity.set_clipboard("Hello from Cocoanut")?;
// Paste from clipboard
let content = continuity.get_clipboard()?;
println!("Pasted: {}", content);
```
## Complete Example
```rust
use cocoanut::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Create window
let window = Window::builder()
.title("macOS Features Demo")
.size(600.0, 400.0)
.center()
.build()?;
// Setup native feel
let mut feel = NativeFeel::new();
feel.set_style(NativeDesignStyle::Auto);
feel.apply_native_style(window.as_view())?;
// Setup accessibility
let a11y = AccessibilityOptions::new()
.label("Main Window")
.description("Application main window");
a11y.apply(window.as_view())?;
// Setup dark mode
let mut dark_mode = DarkMode::new();
dark_mode.enable();
dark_mode.apply_to_view(window.as_view())?;
// Setup Touch Bar
let mut touchbar = MacTouchBar::new();
touchbar.add_item(MacTouchBarItem::new("save", "Save"));
touchbar.add_item(MacTouchBarItem::new("undo", "Undo"));
touchbar.apply()?;
// Setup Continuity
let mut continuity = ContinuityManager::new();
continuity.enable_handoff();
continuity.enable_clipboard();
continuity.set_clipboard("Hello from Cocoanut")?;
// Run app
app("macOS Features")
.with_window(window)
.run()?;
Ok(())
}
```
## Testing
All features include comprehensive tests:
```bash
cargo test --lib macos_features
```
### Test Coverage
- Native Feel style changes
- Accessibility options
- Dark mode detection
- Touch Bar item management
- Continuity features
## Performance Considerations
- **Zero Overhead** - Features compile to native Objective-C calls
- **Lazy Initialization** - Features initialized on-demand
- **Memory Efficient** - Minimal memory footprint
- **Fast Execution** - Direct NSApplication integration
## Backward Compatibility
- All features are opt-in
- No breaking changes to existing API
- Gradual adoption path
- Full backward compatibility maintained
## Future Enhancements
1. **Siri Integration** - Voice control support
2. **Spotlight Integration** - Search integration
3. **Quick Actions** - Context menu actions
4. **Share Menu** - Native share integration
5. **App Shortcuts** - Automation support
