neft

'use strict' module.exports = (impl) -> getNormalizedEvent = do -> NORMALIZED_VALUE = 3 isSlowContinuous = false event = deltaX: 0 deltaY: 0 getDeltas = (e) -> x = -e.deltaX*3 or e.wheelDeltaX ? 0 y = -e.deltaY*3 or e.wheelDeltaY ? e.wheelDelta ? -e.detail*3 or 0 if impl.utils.isFirefox and e.deltaMode is e.DOM_DELTA_LINE x *= 10 y *= 10 event.deltaX = x event.deltaY = y (e) -> getDeltas e # MAGIC! # It looks that Chrome on MacBook never gives values in range (-3, 3) as # it does Firefox which always send lower values if not isSlowContinuous delta = event.deltaX or event.deltaY or 3 if (delta > 0 and delta < 3) or (delta < 0 and delta > -3) isSlowContinuous = true if isSlowContinuous event.deltaX *= NORMALIZED_VALUE event.deltaY *= NORMALIZED_VALUE event initDeviceNamespace: -> device = this {pointer} = this impl.utils.keysEvents.device = device @_pixelRatio = window.devicePixelRatio or 1 @_desktop = not ('ontouchstart' of window) @_phone = 'ontouchstart' of window and Math.min(@_width, @_height)/Math.max(@_width, @_height) < 0.75 @_platform = do -> {userAgent} = navigator switch true when /Android/i.test(userAgent) 'Android' when /iPhone|iPad|iPod/i.test(userAgent) 'iOS' when /BlackBerry/i.test(userAgent) 'BlackBerry' when /IEMobile|WPDesktop/i.test(userAgent) 'WindowsPhone' when /Linux|X11/i.test(userAgent) 'Linux' when /Windows/i.test(userAgent) 'Windows' when /Mac_PowerPC|Macintosh/i.test(userAgent) 'OSX' else 'Unix' updatePointerEvent = (event) -> obj = event.touches?[0] or event.changedTouches?[0] or event pointer.x = obj.pageX pointer.y = obj.pageY return do -> touchEvents = 0 onPointerPress = (e) -> if TouchEvent? and e instanceof TouchEvent touchEvents++ else if e instanceof MouseEvent if touchEvents > 0 touchEvents-- return updatePointerEvent e device.onPointerPress.emit pointer return window.addEventListener 'mousedown', onPointerPress window.addEventListener 'touchstart', onPointerPress do -> touchEvents = 0 onPointerRelease = (e) -> if TouchEvent? and e instanceof TouchEvent touchEvents++ else if e instanceof MouseEvent if touchEvents > 0 touchEvents-- return updatePointerEvent e device.onPointerRelease.emit pointer return window.addEventListener 'mouseup', onPointerRelease window.addEventListener 'touchend', onPointerRelease do -> touchEvents = 0 onPointerMove = (e) -> if TouchEvent? and e instanceof TouchEvent touchEvents++ else if e instanceof MouseEvent if touchEvents > 0 touchEvents-- return updatePointerEvent e device.onPointerMove.emit pointer return window.addEventListener 'mousemove', onPointerMove window.addEventListener 'touchmove', onPointerMove onPointerWheel = (e) -> event = getNormalizedEvent e pointer.deltaX = event.deltaX pointer.deltaY = event.deltaY device.onPointerWheel.emit pointer window.addEventListener impl.utils.pointerWheelEventName, onPointerWheel