React_Client_App_Access/node_modules/.cache/babel-loader/380551724ba6607d30436aa6fda9034b.json

{"ast":null,"code":"import { eventScope, TouchRecord } from '../utils/';\nvar activeScrollbar;\nexport function touchHandler(scrollbar) {\n  var MIN_EAING_MOMENTUM = 50;\n  var EASING_MULTIPLIER = /Android/.test(navigator.userAgent) ? 3 : 2;\n  var target = scrollbar.options.delegateTo || scrollbar.containerEl;\n  var touchRecord = new TouchRecord();\n  var addEvent = eventScope(scrollbar);\n  var damping;\n  var pointerCount = 0;\n  addEvent(target, 'touchstart', function (evt) {\n    // start records\n    touchRecord.track(evt); // stop scrolling\n\n    scrollbar.setMomentum(0, 0); // save damping\n\n    if (pointerCount === 0) {\n      damping = scrollbar.options.damping;\n      scrollbar.options.damping = Math.max(damping, 0.5); // less frames on touchmove\n    }\n\n    pointerCount++;\n  });\n  addEvent(target, 'touchmove', function (evt) {\n    if (activeScrollbar && activeScrollbar !== scrollbar) return;\n    touchRecord.update(evt);\n\n    var _a = touchRecord.getDelta(),\n        x = _a.x,\n        y = _a.y;\n\n    scrollbar.addTransformableMomentum(x, y, evt, function (willScroll) {\n      if (willScroll) {\n        evt.preventDefault();\n        activeScrollbar = scrollbar;\n      }\n    });\n  });\n  addEvent(target, 'touchcancel touchend', function (evt) {\n    var velocity = touchRecord.getVelocity();\n    var momentum = {\n      x: 0,\n      y: 0\n    };\n    Object.keys(velocity).forEach(function (dir) {\n      var s = velocity[dir] / damping; // throw small values\n\n      momentum[dir] = Math.abs(s) < MIN_EAING_MOMENTUM ? 0 : s * EASING_MULTIPLIER;\n    });\n    scrollbar.addTransformableMomentum(momentum.x, momentum.y, evt);\n    pointerCount--; // restore damping\n\n    if (pointerCount === 0) {\n      scrollbar.options.damping = damping;\n    }\n\n    touchRecord.release(evt);\n    activeScrollbar = null;\n  });\n}","map":null,"metadata":{},"sourceType":"module"}