@ordojs/mobile/dist/gestures.mjs.map

Mobile and PWA support for OrdoJS applications

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type { GestureConfig, GestureEvent, TouchPoint } from './types';\n\nexport class GestureManager {\n  private config: GestureConfig;\n  private element: HTMLElement;\n  private touchPoints: Map<number, TouchPoint> = new Map();\n  private gestureStartTime: number = 0;\n  private gestureStartPoints: TouchPoint[] = [];\n  private listeners: Map<string, ((event: GestureEvent) => void)[]> = new Map();\n\n  constructor(element: HTMLElement, config: Partial<GestureConfig> = {}) {\n    this.element = element;\n    this.config = {\n      enabled: true,\n      threshold: 10,\n      velocity: 0.3,\n      direction: 'both',\n      preventDefault: true,\n      ...config\n    };\n\n    this.initialize();\n  }\n\n  /**\n   * Initializes gesture detection\n   */\n  private initialize(): void {\n    if (!this.config.enabled) return;\n\n    this.element.addEventListener('touchstart', this.handleTouchStart.bind(this), { passive: false });\n    this.element.addEventListener('touchmove', this.handleTouchMove.bind(this), { passive: false });\n    this.element.addEventListener('touchend', this.handleTouchEnd.bind(this), { passive: false });\n    this.element.addEventListener('touchcancel', this.handleTouchCancel.bind(this), { passive: false });\n  }\n\n  /**\n   * Handles touch start events\n   */\n  private handleTouchStart(event: TouchEvent): void {\n    if (this.config.preventDefault) {\n      event.preventDefault();\n    }\n\n    this.gestureStartTime = Date.now();\n    this.gestureStartPoints = [];\n    this.touchPoints.clear();\n\n    Array.from(event.touches).forEach(touch => {\n      const point: TouchPoint = {\n        x: touch.clientX,\n        y: touch.clientY,\n        identifier: touch.identifier,\n        timestamp: Date.now()\n      };\n      this.touchPoints.set(touch.identifier, point);\n      this.gestureStartPoints.push({ ...point });\n    });\n\n    // Detect tap and long press\n    if (this.touchPoints.size === 1) {\n      this.detectTap();\n      this.detectLongPress();\n    }\n  }\n\n  /**\n   * Handles touch move events\n   */\n  private handleTouchMove(event: TouchEvent): void {\n    if (this.config.preventDefault) {\n      event.preventDefault();\n    }\n\n    Array.from(event.touches).forEach(touch => {\n      const existingPoint = this.touchPoints.get(touch.identifier);\n      if (existingPoint) {\n        existingPoint.x = touch.clientX;\n        existingPoint.y = touch.clientY;\n        existingPoint.timestamp = Date.now();\n      }\n    });\n\n    // Detect gestures based on touch count\n    if (this.touchPoints.size === 1) {\n      this.detectSwipe();\n      this.detectPan();\n    } else if (this.touchPoints.size === 2) {\n      this.detectPinch();\n      this.detectRotate();\n    }\n  }\n\n  /**\n   * Handles touch end events\n   */\n  private handleTouchEnd(event: TouchEvent): void {\n    if (this.config.preventDefault) {\n      event.preventDefault();\n    }\n\n    const duration = Date.now() - this.gestureStartTime;\n    const points = Array.from(this.touchPoints.values());\n\n    if (points.length === 1) {\n      const point = points[0];\n      if (!point) return;\n      const startPoint = this.gestureStartPoints.find(p => p.identifier === point.identifier);\n\n      if (startPoint) {\n        const deltaX = point.x - startPoint.x;\n        const deltaY = point.y - startPoint.y;\n        const distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);\n        const velocity = distance / duration;\n\n        // Detect tap\n        if (distance < this.config.threshold && duration < 300) {\n          this.emitGesture('tap', {\n            type: 'tap',\n            points: [point],\n            deltaX,\n            deltaY,\n            velocity,\n            direction: 'none',\n            duration\n          });\n        }\n\n        // Detect swipe\n        if (distance > this.config.threshold && velocity > this.config.velocity) {\n          const direction = this.getDirection(deltaX, deltaY);\n          this.emitGesture('swipe', {\n            type: 'swipe',\n            points: [point],\n            deltaX,\n            deltaY,\n            velocity,\n            direction,\n            duration\n          });\n        }\n      }\n    }\n\n    this.touchPoints.clear();\n    this.gestureStartPoints = [];\n  }\n\n  /**\n   * Handles touch cancel events\n   */\n  private handleTouchCancel(event: TouchEvent): void {\n    this.touchPoints.clear();\n    this.gestureStartPoints = [];\n  }\n\n  /**\n   * Detects tap gesture\n   */\n  private detectTap(): void {\n    // Tap detection is handled in handleTouchEnd\n  }\n\n  /**\n   * Detects long press gesture\n   */\n  private detectLongPress(): void {\n    setTimeout(() => {\n      if (this.touchPoints.size === 1) {\n        const point = Array.from(this.touchPoints.values())[0];\n        if (!point) return;\n        this.emitGesture('longpress', {\n          type: 'longpress',\n          points: [point],\n          deltaX: 0,\n          deltaY: 0,\n          velocity: 0,\n          direction: 'none',\n          duration: 500\n        });\n      }\n    }, 500);\n  }\n\n  /**\n   * Detects swipe gesture\n   */\n  private detectSwipe(): void {\n    // Swipe detection is handled in handleTouchEnd\n  }\n\n  /**\n   * Detects pan gesture\n   */\n  private detectPan(): void {\n    const points = Array.from(this.touchPoints.values());\n    if (points.length === 1) {\n      const point = points[0];\n      if (!point) return;\n      const startPoint = this.gestureStartPoints.find(p => p.identifier === point.identifier);\n\n      if (startPoint) {\n        const deltaX = point.x - startPoint.x;\n        const deltaY = point.y - startPoint.y;\n        const distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);\n\n        if (distance > this.config.threshold) {\n          const direction = this.getDirection(deltaX, deltaY);\n          this.emitGesture('pan', {\n            type: 'pan',\n            points: [point],\n            deltaX,\n            deltaY,\n            velocity: distance / (Date.now() - this.gestureStartTime),\n            direction,\n            duration: Date.now() - this.gestureStartTime\n          });\n        }\n      }\n    }\n  }\n\n  /**\n   * Detects pinch gesture\n   */\n  private detectPinch(): void {\n    const points = Array.from(this.touchPoints.values());\n    if (points.length === 2) {\n      const point1 = points[0];\n      const point2 = points[1];\n      const startPoint1 = this.gestureStartPoints[0];\n      const startPoint2 = this.gestureStartPoints[1];\n\n      if (!point1 || !point2 || !startPoint1 || !startPoint2) return;\n\n      const startDistance = this.getDistance(startPoint1, startPoint2);\n      const currentDistance = this.getDistance(point1, point2);\n      const scale = currentDistance / startDistance;\n\n      this.emitGesture('pinch', {\n        type: 'pinch',\n        points,\n        deltaX: 0,\n        deltaY: 0,\n        scale,\n        velocity: 0,\n        direction: 'none',\n        duration: Date.now() - this.gestureStartTime\n      });\n    }\n  }\n\n  /**\n   * Detects rotate gesture\n   */\n  private detectRotate(): void {\n    const points = Array.from(this.touchPoints.values());\n    if (points.length === 2) {\n      const point1 = points[0];\n      const point2 = points[1];\n      const startPoint1 = this.gestureStartPoints[0];\n      const startPoint2 = this.gestureStartPoints[1];\n\n      if (!point1 || !point2 || !startPoint1 || !startPoint2) return;\n\n      const startAngle = this.getAngle(startPoint1, startPoint2);\n      const currentAngle = this.getAngle(point1, point2);\n      const rotation = currentAngle - startAngle;\n\n      this.emitGesture('rotate', {\n        type: 'rotate',\n        points,\n        deltaX: 0,\n        deltaY: 0,\n        rotation,\n        velocity: 0,\n        direction: 'none',\n        duration: Date.now() - this.gestureStartTime\n      });\n    }\n  }\n\n  /**\n   * Calculates distance between two points\n   */\n  private getDistance(point1: TouchPoint, point2: TouchPoint): number {\n    const dx = point1.x - point2.x;\n    const dy = point1.y - point2.y;\n    return Math.sqrt(dx * dx + dy * dy);\n  }\n\n  /**\n   * Calculates angle between two points\n   */\n  private getAngle(point1: TouchPoint, point2: TouchPoint): number {\n    return Math.atan2(point2.y - point1.y, point2.x - point1.x) * 180 / Math.PI;\n  }\n\n  /**\n   * Determines direction based on deltas\n   */\n  private getDirection(deltaX: number, deltaY: number): 'left' | 'right' | 'up' | 'down' | 'none' {\n    const absX = Math.abs(deltaX);\n    const absY = Math.abs(deltaY);\n\n    if (absX > absY) {\n      return deltaX > 0 ? 'right' : 'left';\n    } else {\n      return deltaY > 0 ? 'down' : 'up';\n    }\n  }\n\n  /**\n   * Emits a gesture event\n   */\n  private emitGesture(type: string, event: GestureEvent): void {\n    const listeners = this.listeners.get(type);\n    if (listeners) {\n      listeners.forEach(listener => {\n        try {\n          listener(event);\n        } catch (error) {\n          console.error(`Error in gesture listener for ${type}:`, error);\n        }\n      });\n    }\n  }\n\n  /**\n   * Adds a gesture listener\n   */\n  on(type: string, listener: (event: GestureEvent) => void): void {\n    if (!this.listeners.has(type)) {\n      this.listeners.set(type, []);\n    }\n    this.listeners.get(type)!.push(listener);\n  }\n\n  /**\n   * Removes a gesture listener\n   */\n  off(type: string, listener: (event: GestureEvent) => void): void {\n    const listeners = this.listeners.get(type);\n    if (listeners) {\n      const index = listeners.indexOf(listener);\n      if (index > -1) {\n        listeners.splice(index, 1);\n      }\n    }\n  }\n\n  /**\n   * Updates the configuration\n   */\n  updateConfig(newConfig: Partial<GestureConfig>): void {\n    this.config = { ...this.config, ...newConfig };\n  }\n\n  /**\n   * Gets the current configuration\n   */\n  getConfig(): GestureConfig {\n    return { ...this.config };\n  }\n\n  /**\n   * Destroys the gesture manager\n   */\n  destroy(): void {\n    this.element.removeEventListener('touchstart', this.handleTouchStart.bind(this));\n    this.element.removeEventListener('touchmove', this.handleTouchMove.bind(this));\n    this.element.removeEventListener('touchend', this.handleTouchEnd.bind(this));\n    this.element.removeEventListener('touchcancel', this.handleTouchCancel.bind(this));\n    this.listeners.clear();\n    this.touchPoints.clear();\n  }\n}\n\n// Additional types for gestures\nexport interface GestureOptions {\n  threshold?: number;\n  velocity?: number;\n  direction?: 'horizontal' | 'vertical' | 'both';\n  preventDefault?: boolean;\n}\n\nexport interface GestureListener {\n  (event: GestureEvent): void;\n}\n"]}