|
| 1 | +# Touch Optimizations Guide |
| 2 | + |
| 3 | +This document provides a comprehensive guide to the touch optimization features in Vue Float Menu. |
| 4 | + |
| 5 | +## Overview |
| 6 | + |
| 7 | +Vue Float Menu includes advanced touch optimizations designed specifically for mobile and touch-enabled devices. These features enhance the user experience on smartphones, tablets, and touch-enabled desktop devices. |
| 8 | + |
| 9 | +## Features |
| 10 | + |
| 11 | +### 1. Touch Device Detection |
| 12 | + |
| 13 | +The menu automatically detects touch-capable devices and applies appropriate optimizations: |
| 14 | + |
| 15 | +```javascript |
| 16 | +const { isTouchDevice } = useTouchOptimizations(); |
| 17 | +``` |
| 18 | + |
| 19 | +### 2. Gesture Recognition |
| 20 | + |
| 21 | +#### Tap Detection |
| 22 | + |
| 23 | +- **Single Tap**: Normal menu activation |
| 24 | +- **Long Press**: Alternative menu activation with haptic feedback |
| 25 | +- **Touch Target Size**: Minimum 44px touch targets for accessibility |
| 26 | + |
| 27 | +#### Swipe Gestures |
| 28 | + |
| 29 | +- **Swipe Up/Down**: Close the menu when active |
| 30 | +- **Swipe Detection**: Configurable distance and velocity thresholds |
| 31 | + |
| 32 | +### 3. Haptic Feedback |
| 33 | + |
| 34 | +Enhanced tactile feedback for touch interactions: |
| 35 | + |
| 36 | +```javascript |
| 37 | +// Light feedback for simple interactions |
| 38 | +triggerHapticFeedback('light'); |
| 39 | + |
| 40 | +// Medium feedback for long press |
| 41 | +triggerHapticFeedback('medium'); |
| 42 | + |
| 43 | +// Heavy feedback for important actions |
| 44 | +triggerHapticFeedback('heavy'); |
| 45 | +``` |
| 46 | + |
| 47 | +#### Feedback Types: |
| 48 | + |
| 49 | +- **Light**: Menu item selection, simple taps |
| 50 | +- **Medium**: Long press activation, submenu opening |
| 51 | +- **Heavy**: Error states, important confirmations |
| 52 | + |
| 53 | +### 4. Enhanced Accessibility |
| 54 | + |
| 55 | +Touch-specific accessibility improvements: |
| 56 | + |
| 57 | +- **Touch Target Sizing**: Ensures minimum 44px touch targets |
| 58 | +- **Focus Management**: Enhanced keyboard and touch navigation |
| 59 | +- **Screen Reader Support**: Proper ARIA attributes for touch interactions |
| 60 | +- **High Contrast**: Improved visual feedback for touch states |
| 61 | + |
| 62 | +### 5. Performance Optimizations |
| 63 | + |
| 64 | +Touch-specific performance enhancements: |
| 65 | + |
| 66 | +- **Throttled Touch Events**: Prevents excessive event firing |
| 67 | +- **Gesture Debouncing**: Smooth gesture recognition |
| 68 | +- **Memory Management**: Efficient touch event cleanup |
| 69 | + |
| 70 | +## Usage |
| 71 | + |
| 72 | +### Basic Integration |
| 73 | + |
| 74 | +The touch optimizations are automatically enabled when touch devices are detected: |
| 75 | + |
| 76 | +```vue |
| 77 | +<template> |
| 78 | + <float-menu :menu-data="menuItems" :dimension="50" position="bottom right"> |
| 79 | + <template #icon> |
| 80 | + <MenuIcon /> |
| 81 | + </template> |
| 82 | + </float-menu> |
| 83 | +</template> |
| 84 | +``` |
| 85 | + |
| 86 | +### Advanced Configuration |
| 87 | + |
| 88 | +For custom touch behavior, access the touch composable directly: |
| 89 | + |
| 90 | +```javascript |
| 91 | +import { useTouchOptimizations } from './composables/useTouchOptimizations'; |
| 92 | + |
| 93 | +export default { |
| 94 | + setup() { |
| 95 | + const { |
| 96 | + isTouchDevice, |
| 97 | + handleTouchStart, |
| 98 | + handleTouchMove, |
| 99 | + handleTouchEnd, |
| 100 | + triggerHapticFeedback, |
| 101 | + getSwipeDirection, |
| 102 | + } = useTouchOptimizations(); |
| 103 | + |
| 104 | + return { |
| 105 | + isTouchDevice, |
| 106 | + // ... other exports |
| 107 | + }; |
| 108 | + }, |
| 109 | +}; |
| 110 | +``` |
| 111 | + |
| 112 | +### Custom Touch Handlers |
| 113 | + |
| 114 | +Implement custom touch event handling: |
| 115 | + |
| 116 | +```javascript |
| 117 | +const handleCustomTouch = (event) => { |
| 118 | + handleTouchStart(event, (touchEvent) => { |
| 119 | + switch (touchEvent.type) { |
| 120 | + case 'tap': |
| 121 | + // Handle tap |
| 122 | + break; |
| 123 | + case 'longpress': |
| 124 | + // Handle long press |
| 125 | + triggerHapticFeedback('medium'); |
| 126 | + break; |
| 127 | + case 'swipe': |
| 128 | + // Handle swipe |
| 129 | + const direction = getSwipeDirection(); |
| 130 | + if (direction) { |
| 131 | + console.log('Swipe direction:', direction.direction); |
| 132 | + } |
| 133 | + break; |
| 134 | + } |
| 135 | + }); |
| 136 | +}; |
| 137 | +``` |
| 138 | + |
| 139 | +## Configuration Options |
| 140 | + |
| 141 | +### Touch Event Thresholds |
| 142 | + |
| 143 | +```typescript |
| 144 | +interface TouchEventConfig { |
| 145 | + longPressThreshold: number; // Default: 500ms |
| 146 | + swipeThreshold: number; // Default: 50px |
| 147 | + velocityThreshold: number; // Default: 0.5px/ms |
| 148 | + touchTargetSize: number; // Default: 44px |
| 149 | +} |
| 150 | +``` |
| 151 | + |
| 152 | +### Haptic Feedback Settings |
| 153 | + |
| 154 | +```typescript |
| 155 | +interface HapticConfig { |
| 156 | + enabled: boolean; // Default: true |
| 157 | + lightIntensity: number; // Default: 0.1 |
| 158 | + mediumIntensity: number; // Default: 0.5 |
| 159 | + heavyIntensity: number; // Default: 1.0 |
| 160 | +} |
| 161 | +``` |
| 162 | + |
| 163 | +## Browser Support |
| 164 | + |
| 165 | +| Feature | Chrome | Firefox | Safari | Edge | |
| 166 | +| ----------------- | ------ | ------- | ------ | ---- | |
| 167 | +| Touch Events | ✅ | ✅ | ✅ | ✅ | |
| 168 | +| Haptic Feedback | ✅ | ❌ | ✅ | ✅ | |
| 169 | +| Pointer Events | ✅ | ✅ | ✅ | ✅ | |
| 170 | +| Touch Target Size | ✅ | ✅ | ✅ | ✅ | |
| 171 | + |
| 172 | +## Best Practices |
| 173 | + |
| 174 | +### 1. Touch Target Sizing |
| 175 | + |
| 176 | +- Ensure all interactive elements are at least 44px in both dimensions |
| 177 | +- Provide adequate spacing between touch targets |
| 178 | + |
| 179 | +### 2. Gesture Feedback |
| 180 | + |
| 181 | +- Always provide immediate visual feedback for touch interactions |
| 182 | +- Use haptic feedback sparingly and meaningfully |
| 183 | + |
| 184 | +### 3. Accessibility |
| 185 | + |
| 186 | +- Test with assistive technologies on touch devices |
| 187 | +- Ensure all functionality is available without gestures |
| 188 | + |
| 189 | +### 4. Performance |
| 190 | + |
| 191 | +- Throttle touch event handlers to maintain smooth interactions |
| 192 | +- Clean up event listeners properly to prevent memory leaks |
| 193 | + |
| 194 | +## Examples |
| 195 | + |
| 196 | +### Example 1: Basic Touch Menu |
| 197 | + |
| 198 | +```vue |
| 199 | +<template> |
| 200 | + <float-menu :menu-data="menuItems" :dimension="60" position="bottom right" flip-on-edges> |
| 201 | + <template #icon> |
| 202 | + <TouchIcon /> |
| 203 | + </template> |
| 204 | + </float-menu> |
| 205 | +</template> |
| 206 | +
|
| 207 | +<script> |
| 208 | +export default { |
| 209 | + data() { |
| 210 | + return { |
| 211 | + menuItems: [ |
| 212 | + { name: 'Touch Action 1', action: 'tap' }, |
| 213 | + { name: 'Long Press Action', action: 'longpress' }, |
| 214 | + { name: 'Swipe Action', action: 'swipe' }, |
| 215 | + ], |
| 216 | + }; |
| 217 | + }, |
| 218 | +}; |
| 219 | +</script> |
| 220 | +``` |
| 221 | + |
| 222 | +### Example 2: Custom Touch Handling |
| 223 | + |
| 224 | +```vue |
| 225 | +<template> |
| 226 | + <div |
| 227 | + @touchstart="handleTouchStart" |
| 228 | + @touchend="handleTouchEnd" |
| 229 | + @touchmove="handleTouchMove" |
| 230 | + class="custom-touch-area" |
| 231 | + > |
| 232 | + Custom Touch Area |
| 233 | + </div> |
| 234 | +</template> |
| 235 | +
|
| 236 | +<script> |
| 237 | +import { useTouchOptimizations } from '@/composables/useTouchOptimizations'; |
| 238 | +
|
| 239 | +export default { |
| 240 | + setup() { |
| 241 | + const { |
| 242 | + handleTouchStart: startHandler, |
| 243 | + handleTouchEnd: endHandler, |
| 244 | + handleTouchMove: moveHandler, |
| 245 | + triggerHapticFeedback, |
| 246 | + } = useTouchOptimizations(); |
| 247 | +
|
| 248 | + const handleTouchStart = (event) => { |
| 249 | + startHandler(event, (touchEvent) => { |
| 250 | + if (touchEvent.type === 'longpress') { |
| 251 | + triggerHapticFeedback('medium'); |
| 252 | + // Custom long press logic |
| 253 | + } |
| 254 | + }); |
| 255 | + }; |
| 256 | +
|
| 257 | + const handleTouchEnd = (event) => { |
| 258 | + endHandler(event, (touchEvent) => { |
| 259 | + if (touchEvent.type === 'tap') { |
| 260 | + triggerHapticFeedback('light'); |
| 261 | + // Custom tap logic |
| 262 | + } |
| 263 | + }); |
| 264 | + }; |
| 265 | +
|
| 266 | + const handleTouchMove = (event) => { |
| 267 | + moveHandler(event); |
| 268 | + }; |
| 269 | +
|
| 270 | + return { |
| 271 | + handleTouchStart, |
| 272 | + handleTouchEnd, |
| 273 | + handleTouchMove, |
| 274 | + }; |
| 275 | + }, |
| 276 | +}; |
| 277 | +</script> |
| 278 | +``` |
| 279 | + |
| 280 | +## Troubleshooting |
| 281 | + |
| 282 | +### Common Issues |
| 283 | + |
| 284 | +1. **Haptic Feedback Not Working** |
| 285 | + |
| 286 | + - Check if the device supports haptic feedback |
| 287 | + - Ensure the user has enabled vibration in browser settings |
| 288 | + - Some browsers require HTTPS for haptic feedback |
| 289 | + |
| 290 | +2. **Touch Events Not Detected** |
| 291 | + |
| 292 | + - Verify touch event listeners are properly attached |
| 293 | + - Check if `touchstart` event is being prevented elsewhere |
| 294 | + - Ensure proper event delegation |
| 295 | + |
| 296 | +3. **Performance Issues** |
| 297 | + - Check if touch event handlers are throttled |
| 298 | + - Verify proper cleanup of event listeners |
| 299 | + - Monitor memory usage during touch interactions |
| 300 | + |
| 301 | +### Debugging |
| 302 | + |
| 303 | +Enable debug mode to see touch event details: |
| 304 | + |
| 305 | +```javascript |
| 306 | +const { enableDebugMode } = useTouchOptimizations(); |
| 307 | +enableDebugMode(true); |
| 308 | +``` |
| 309 | + |
| 310 | +This will log touch events and gesture recognition to the console. |
| 311 | + |
| 312 | +## Contributing |
| 313 | + |
| 314 | +To contribute to touch optimizations: |
| 315 | + |
| 316 | +1. Test on multiple touch devices |
| 317 | +2. Follow accessibility guidelines |
| 318 | +3. Ensure cross-browser compatibility |
| 319 | +4. Add appropriate tests for new features |
| 320 | +5. Update documentation for any API changes |
| 321 | + |
| 322 | +## Resources |
| 323 | + |
| 324 | +- [MDN Touch Events](https://developer.mozilla.org/en-US/docs/Web/API/Touch_events) |
| 325 | +- [Web Content Accessibility Guidelines (WCAG)](https://www.w3.org/WAI/WCAG21/Understanding/) |
| 326 | +- [Haptic Feedback API](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/vibrate) |
| 327 | +- [Pointer Events Specification](https://www.w3.org/TR/pointerevents/) |
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