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Edit File: perfect-scrollbar.min.js

/*! * perfect-scrollbar v1.5.3 * Copyright 2021 Hyunje Jun, MDBootstrap and Contributors * Licensed under MIT */(function (a, b) { "object" == typeof exports && "undefined" != typeof module ? module.exports = b() : "function" == typeof define && define.amd ? define(b) : (a = a || self, a.PerfectScrollbar = b()) })(this, function () { 'use strict'; var u = Math.abs, v = Math.floor; function a(a) { return getComputedStyle(a) } function b(a, b) { for (var c in b) { var d = b[c]; "number" == typeof d && (d += "px"), a.style[c] = d } return a } function c(a) { var b = document.createElement("div"); return b.className = a, b } function d(a, b) { if (!w) throw new Error("No element matching method supported"); return w.call(a, b) } function e(a) { a.remove ? a.remove() : a.parentNode && a.parentNode.removeChild(a) } function f(a, b) { return Array.prototype.filter.call(a.children, function (a) { return d(a, b) }) } function g(a, b) { var c = a.element.classList, d = z.state.scrolling(b); c.contains(d) ? clearTimeout(A[b]) : c.add(d) } function h(a, b) { A[b] = setTimeout(function () { return a.isAlive && a.element.classList.remove(z.state.scrolling(b)) }, a.settings.scrollingThreshold) } function j(a, b) { g(a, b), h(a, b) } function k(a) { if ("function" == typeof window.CustomEvent) return new CustomEvent(a); var b = document.createEvent("CustomEvent"); return b.initCustomEvent(a, !1, !1, void 0), b } function l(a, b, c, d, e) { void 0 === d && (d = !0), void 0 === e && (e = !1); var f; if ("top" === b) f = ["contentHeight", "containerHeight", "scrollTop", "y", "up", "down"]; else if ("left" === b) f = ["contentWidth", "containerWidth", "scrollLeft", "x", "left", "right"]; else throw new Error("A proper axis should be provided"); m(a, c, f, d, e) } function m(a, b, c, d, e) { var f = c[0], g = c[1], h = c[2], i = c[3], l = c[4], m = c[5]; void 0 === d && (d = !0), void 0 === e && (e = !1); var n = a.element;// reset reach a.reach[i] = null, 1 > n[h] && (a.reach[i] = "start"), n[h] > a[f] - a[g] - 1 && (a.reach[i] = "end"), b && (n.dispatchEvent(k("ps-scroll-" + i)), 0 > b ? n.dispatchEvent(k("ps-scroll-" + l)) : 0 < b && n.dispatchEvent(k("ps-scroll-" + m)), d && j(a, i)), a.reach[i] && (b || e) && n.dispatchEvent(k("ps-" + i + "-reach-" + a.reach[i])) } function n(a) { return parseInt(a, 10) || 0 } function o(a) { return d(a, "input,[contenteditable]") || d(a, "select,[contenteditable]") || d(a, "textarea,[contenteditable]") || d(a, "button,[contenteditable]") } function p(b) { var c = a(b); return n(c.width) + n(c.paddingLeft) + n(c.paddingRight) + n(c.borderLeftWidth) + n(c.borderRightWidth) } function q(a) { var b = Math.round, c = a.element, d = v(c.scrollTop), g = c.getBoundingClientRect(); a.containerWidth = b(g.width), a.containerHeight = b(g.height), a.contentWidth = c.scrollWidth, a.contentHeight = c.scrollHeight, c.contains(a.scrollbarXRail) || (f(c, z.element.rail("x")).forEach(function (a) { return e(a) }), c.appendChild(a.scrollbarXRail)), c.contains(a.scrollbarYRail) || (f(c, z.element.rail("y")).forEach(function (a) { return e(a) }), c.appendChild(a.scrollbarYRail)), !a.settings.suppressScrollX && a.containerWidth + a.settings.scrollXMarginOffset < a.contentWidth ? (a.scrollbarXActive = !0, a.railXWidth = a.containerWidth - a.railXMarginWidth, a.railXRatio = a.containerWidth / a.railXWidth, a.scrollbarXWidth = r(a, n(a.railXWidth * a.containerWidth / a.contentWidth)), a.scrollbarXLeft = n((a.negativeScrollAdjustment + c.scrollLeft) * (a.railXWidth - a.scrollbarXWidth) / (a.contentWidth - a.containerWidth))) : a.scrollbarXActive = !1, !a.settings.suppressScrollY && a.containerHeight + a.settings.scrollYMarginOffset < a.contentHeight ? (a.scrollbarYActive = !0, a.railYHeight = a.containerHeight - a.railYMarginHeight, a.railYRatio = a.containerHeight / a.railYHeight, a.scrollbarYHeight = r(a, n(a.railYHeight * a.containerHeight / a.contentHeight)), a.scrollbarYTop = n(d * (a.railYHeight - a.scrollbarYHeight) / (a.contentHeight - a.containerHeight))) : a.scrollbarYActive = !1, a.scrollbarXLeft >= a.railXWidth - a.scrollbarXWidth && (a.scrollbarXLeft = a.railXWidth - a.scrollbarXWidth), a.scrollbarYTop >= a.railYHeight - a.scrollbarYHeight && (a.scrollbarYTop = a.railYHeight - a.scrollbarYHeight), s(c, a), a.scrollbarXActive ? c.classList.add(z.state.active("x")) : (c.classList.remove(z.state.active("x")), a.scrollbarXWidth = 0, a.scrollbarXLeft = 0, c.scrollLeft = !0 === a.isRtl ? a.contentWidth : 0), a.scrollbarYActive ? c.classList.add(z.state.active("y")) : (c.classList.remove(z.state.active("y")), a.scrollbarYHeight = 0, a.scrollbarYTop = 0, c.scrollTop = 0) } function r(a, b) { var c = Math.min, d = Math.max; return a.settings.minScrollbarLength && (b = d(b, a.settings.minScrollbarLength)), a.settings.maxScrollbarLength && (b = c(b, a.settings.maxScrollbarLength)), b } function s(a, c) { var d = { width: c.railXWidth }, e = v(a.scrollTop); d.left = c.isRtl ? c.negativeScrollAdjustment + a.scrollLeft + c.containerWidth - c.contentWidth : a.scrollLeft, c.isScrollbarXUsingBottom ? d.bottom = c.scrollbarXBottom - e : d.top = c.scrollbarXTop + e, b(c.scrollbarXRail, d); var f = { top: e, height: c.railYHeight }; c.isScrollbarYUsingRight ? c.isRtl ? f.right = c.contentWidth - (c.negativeScrollAdjustment + a.scrollLeft) - c.scrollbarYRight - c.scrollbarYOuterWidth - 9 : f.right = c.scrollbarYRight - a.scrollLeft : c.isRtl ? f.left = c.negativeScrollAdjustment + a.scrollLeft + 2 * c.containerWidth - c.contentWidth - c.scrollbarYLeft - c.scrollbarYOuterWidth : f.left = c.scrollbarYLeft + a.scrollLeft, b(c.scrollbarYRail, f), b(c.scrollbarX, { left: c.scrollbarXLeft, width: c.scrollbarXWidth - c.railBorderXWidth }), b(c.scrollbarY, { top: c.scrollbarYTop, height: c.scrollbarYHeight - c.railBorderYWidth }) } function t(a, b) { function c(b) { b.touches && b.touches[0] && (b[k] = b.touches[0].pageY), s[o] = t + v * (b[k] - u), g(a, p), q(a), b.stopPropagation(), b.type.startsWith("touch") && 1 < b.changedTouches.length && b.preventDefault() } function d() { h(a, p), a[r].classList.remove(z.state.clicking), a.event.unbind(a.ownerDocument, "mousemove", c) } function f(b, e) { t = s[o], e && b.touches && (b[k] = b.touches[0].pageY), u = b[k], v = (a[j] - a[i]) / (a[l] - a[n]), e ? a.event.bind(a.ownerDocument, "touchmove", c) : (a.event.bind(a.ownerDocument, "mousemove", c), a.event.once(a.ownerDocument, "mouseup", d), b.preventDefault()), a[r].classList.add(z.state.clicking), b.stopPropagation() } var i = b[0], j = b[1], k = b[2], l = b[3], m = b[4], n = b[5], o = b[6], p = b[7], r = b[8], s = a.element, t = null, u = null, v = null; a.event.bind(a[m], "mousedown", function (a) { f(a) }), a.event.bind(a[m], "touchstart", function (a) { f(a, !0) }) } var w = "undefined" != typeof Element && (Element.prototype.matches || Element.prototype.webkitMatchesSelector || Element.prototype.mozMatchesSelector || Element.prototype.msMatchesSelector), z = { main: "ps", rtl: "ps__rtl", element: { thumb: function (a) { return "ps__thumb-" + a }, rail: function (a) { return "ps__rail-" + a }, consuming: "ps__child--consume" }, state: { focus: "ps--focus", clicking: "ps--clicking", active: function (a) { return "ps--active-" + a }, scrolling: function (a) { return "ps--scrolling-" + a } } }, A = { x: null, y: null }, B = function (a) { this.element = a, this.handlers = {} }, C = { isEmpty: { configurable: !0 } }; B.prototype.bind = function (a, b) { "undefined" == typeof this.handlers[a] && (this.handlers[a] = []), this.handlers[a].push(b), this.element.addEventListener(a, b, !1) }, B.prototype.unbind = function (a, b) { var c = this; this.handlers[a] = this.handlers[a].filter(function (d) { return !!(b && d !== b) || (c.element.removeEventListener(a, d, !1), !1) }) }, B.prototype.unbindAll = function () { for (var a in this.handlers) this.unbind(a) }, C.isEmpty.get = function () { var a = this; return Object.keys(this.handlers).every(function (b) { return 0 === a.handlers[b].length }) }, Object.defineProperties(B.prototype, C); var D = function () { this.eventElements = [] }; D.prototype.eventElement = function (a) { var b = this.eventElements.filter(function (b) { return b.element === a })[0]; return b || (b = new B(a), this.eventElements.push(b)), b }, D.prototype.bind = function (a, b, c) { this.eventElement(a).bind(b, c) }, D.prototype.unbind = function (a, b, c) { var d = this.eventElement(a); d.unbind(b, c), d.isEmpty && this.eventElements.splice(this.eventElements.indexOf(d), 1) }, D.prototype.unbindAll = function () { this.eventElements.forEach(function (a) { return a.unbindAll() }), this.eventElements = [] }, D.prototype.once = function (a, b, c) { var d = this.eventElement(a), e = function (a) { d.unbind(b, e), c(a) }; d.bind(b, e) }; var E = { isWebKit: "undefined" != typeof document && "WebkitAppearance" in document.documentElement.style, supportsTouch: "undefined" != typeof window && ("ontouchstart" in window || "maxTouchPoints" in window.navigator && 0 < window.navigator.maxTouchPoints || window.DocumentTouch && document instanceof window.DocumentTouch), supportsIePointer: "undefined" != typeof navigator && navigator.msMaxTouchPoints, isChrome: "undefined" != typeof navigator && /Chrome/i.test(navigator && navigator.userAgent) }, F = function () { return { handlers: ["click-rail", "drag-thumb", "keyboard", "wheel", "touch"], maxScrollbarLength: null, minScrollbarLength: null, scrollingThreshold: 1e3, scrollXMarginOffset: 0, scrollYMarginOffset: 0, suppressScrollX: !1, suppressScrollY: !1, swipeEasing: !0, useBothWheelAxes: !1, wheelPropagation: !0, wheelSpeed: 1 } }, G = { "click-rail": function (a) { a.element; a.event.bind(a.scrollbarY, "mousedown", function (a) { return a.stopPropagation() }), a.event.bind(a.scrollbarYRail, "mousedown", function (b) { var c = b.pageY - window.pageYOffset - a.scrollbarYRail.getBoundingClientRect().top, d = c > a.scrollbarYTop ? 1 : -1; a.element.scrollTop += d * a.containerHeight, q(a), b.stopPropagation() }), a.event.bind(a.scrollbarX, "mousedown", function (a) { return a.stopPropagation() }), a.event.bind(a.scrollbarXRail, "mousedown", function (b) { var c = b.pageX - window.pageXOffset - a.scrollbarXRail.getBoundingClientRect().left, d = c > a.scrollbarXLeft ? 1 : -1; a.element.scrollLeft += d * a.containerWidth, q(a), b.stopPropagation() }) }, "drag-thumb": function (a) { t(a, ["containerWidth", "contentWidth", "pageX", "railXWidth", "scrollbarX", "scrollbarXWidth", "scrollLeft", "x", "scrollbarXRail"]), t(a, ["containerHeight", "contentHeight", "pageY", "railYHeight", "scrollbarY", "scrollbarYHeight", "scrollTop", "y", "scrollbarYRail"]) }, keyboard: function (a) { function b(b, d) { var e = v(c.scrollTop); if (0 === b) { if (!a.scrollbarYActive) return !1; if (0 === e && 0 < d || e >= a.contentHeight - a.containerHeight && 0 > d) return !a.settings.wheelPropagation } var f = c.scrollLeft; if (0 === d) { if (!a.scrollbarXActive) return !1; if (0 === f && 0 > b || f >= a.contentWidth - a.containerWidth && 0 < b) return !a.settings.wheelPropagation } return !0 } var c = a.element, f = function () { return d(c, ":hover") }, g = function () { return d(a.scrollbarX, ":focus") || d(a.scrollbarY, ":focus") }; a.event.bind(a.ownerDocument, "keydown", function (d) { if (!(d.isDefaultPrevented && d.isDefaultPrevented() || d.defaultPrevented) && (f() || g())) { var e = document.activeElement ? document.activeElement : a.ownerDocument.activeElement; if (e) { if ("IFRAME" === e.tagName) e = e.contentDocument.activeElement; else// go deeper if element is a webcomponent for (; e.shadowRoot;)e = e.shadowRoot.activeElement; if (o(e)) return } var h = 0, i = 0; switch (d.which) { case 37: h = d.metaKey ? -a.contentWidth : d.altKey ? -a.containerWidth : -30; break; case 38: i = d.metaKey ? a.contentHeight : d.altKey ? a.containerHeight : 30; break; case 39: h = d.metaKey ? a.contentWidth : d.altKey ? a.containerWidth : 30; break; case 40: i = d.metaKey ? -a.contentHeight : d.altKey ? -a.containerHeight : -30; break; case 32: i = d.shiftKey ? a.containerHeight : -a.containerHeight; break; case 33: i = a.containerHeight; break; case 34: i = -a.containerHeight; break; case 36: i = a.contentHeight; break; case 35: i = -a.contentHeight; break; default: return; }a.settings.suppressScrollX && 0 !== h || a.settings.suppressScrollY && 0 !== i || (c.scrollTop -= i, c.scrollLeft += h, q(a), b(h, i) && d.preventDefault()) } }) }, wheel: function (b) { function c(a, c) { var d, e = v(h.scrollTop), f = 0 === h.scrollTop, g = e + h.offsetHeight === h.scrollHeight, i = 0 === h.scrollLeft, j = h.scrollLeft + h.offsetWidth === h.scrollWidth; return d = u(c) > u(a) ? f || g : i || j, !d || !b.settings.wheelPropagation } function d(a) { var b = a.deltaX, c = -1 * a.deltaY; return ("undefined" == typeof b || "undefined" == typeof c) && (b = -1 * a.wheelDeltaX / 6, c = a.wheelDeltaY / 6), a.deltaMode && 1 === a.deltaMode && (b *= 10, c *= 10), b !== b && c !== c/* NaN checks */ && (b = 0, c = a.wheelDelta), a.shiftKey ? [-c, -b] : [b, c] } function f(b, c, d) {// FIXME: this is a workaround for <select> issue in FF and IE #571 if (!E.isWebKit && h.querySelector("select:focus")) return !0; if (!h.contains(b)) return !1; for (var e = b; e && e !== h;) { if (e.classList.contains(z.element.consuming)) return !0; var f = a(e);// if deltaY && vertical scrollable if (d && f.overflowY.match(/(scroll|auto)/)) { var g = e.scrollHeight - e.clientHeight; if (0 < g && (0 < e.scrollTop && 0 > d || e.scrollTop < g && 0 < d)) return !0 }// if deltaX && horizontal scrollable if (c && f.overflowX.match(/(scroll|auto)/)) { var i = e.scrollWidth - e.clientWidth; if (0 < i && (0 < e.scrollLeft && 0 > c || e.scrollLeft < i && 0 < c)) return !0 } e = e.parentNode } return !1 } function g(a) { var e = d(a), g = e[0], i = e[1]; if (!f(a.target, g, i)) { var j = !1; b.settings.useBothWheelAxes ? b.scrollbarYActive && !b.scrollbarXActive ? (i ? h.scrollTop -= i * b.settings.wheelSpeed : h.scrollTop += g * b.settings.wheelSpeed, j = !0) : b.scrollbarXActive && !b.scrollbarYActive && (g ? h.scrollLeft += g * b.settings.wheelSpeed : h.scrollLeft -= i * b.settings.wheelSpeed, j = !0) : (h.scrollTop -= i * b.settings.wheelSpeed, h.scrollLeft += g * b.settings.wheelSpeed), q(b), j = j || c(g, i), j && !a.ctrlKey && (a.stopPropagation(), a.preventDefault()) } } var h = b.element; "undefined" == typeof window.onwheel ? "undefined" != typeof window.onmousewheel && b.event.bind(h, "mousewheel", g) : b.event.bind(h, "wheel", g) }, touch: function (b) { function c(a, c) { var d = v(l.scrollTop), e = l.scrollLeft, f = u(a), g = u(c); if (g > f) {// user is perhaps trying to swipe up/down the page if (0 > c && d === b.contentHeight - b.containerHeight || 0 < c && 0 === d)// set prevent for mobile Chrome refresh return 0 === window.scrollY && 0 < c && E.isChrome; } else if (f > g && (0 > a && e === b.contentWidth - b.containerWidth || 0 < a && 0 === e))// user is perhaps trying to swipe left/right across the page return !0; return !0 } function d(a, c) { l.scrollTop -= c, l.scrollLeft -= a, q(b) } function f(a) { return a.targetTouches ? a.targetTouches[0] : a } function g(a) { return !(a.pointerType && "pen" === a.pointerType && 0 === a.buttons) && (!!(a.targetTouches && 1 === a.targetTouches.length) || !!(a.pointerType && "mouse" !== a.pointerType && a.pointerType !== a.MSPOINTER_TYPE_MOUSE)) } function h(a) { if (g(a)) { var b = f(a); m.pageX = b.pageX, m.pageY = b.pageY, n = new Date().getTime(), null !== p && clearInterval(p) } } function i(b, c, d) { if (!l.contains(b)) return !1; for (var e = b; e && e !== l;) { if (e.classList.contains(z.element.consuming)) return !0; var f = a(e);// if deltaY && vertical scrollable if (d && f.overflowY.match(/(scroll|auto)/)) { var g = e.scrollHeight - e.clientHeight; if (0 < g && (0 < e.scrollTop && 0 > d || e.scrollTop < g && 0 < d)) return !0 }// if deltaX && horizontal scrollable if (c && f.overflowX.match(/(scroll|auto)/)) { var h = e.scrollWidth - e.clientWidth; if (0 < h && (0 < e.scrollLeft && 0 > c || e.scrollLeft < h && 0 < c)) return !0 } e = e.parentNode } return !1 } function j(a) { if (g(a)) { var b = f(a), e = { pageX: b.pageX, pageY: b.pageY }, h = e.pageX - m.pageX, j = e.pageY - m.pageY; if (i(a.target, h, j)) return; d(h, j), m = e; var k = new Date().getTime(), l = k - n; 0 < l && (o.x = h / l, o.y = j / l, n = k), c(h, j) && a.preventDefault() } } function k() { b.settings.swipeEasing && (clearInterval(p), p = setInterval(function () { return b.isInitialized ? void clearInterval(p) : o.x || o.y ? .01 > u(o.x) && .01 > u(o.y) ? void clearInterval(p) : b.element ? void (d(30 * o.x, 30 * o.y), o.x *= .8, o.y *= .8) : void clearInterval(p) : void clearInterval(p) }, 10)) } if (E.supportsTouch || E.supportsIePointer) { var l = b.element, m = {}, n = 0, o = {}, p = null; E.supportsTouch ? (b.event.bind(l, "touchstart", h), b.event.bind(l, "touchmove", j), b.event.bind(l, "touchend", k)) : E.supportsIePointer && (window.PointerEvent ? (b.event.bind(l, "pointerdown", h), b.event.bind(l, "pointermove", j), b.event.bind(l, "pointerup", k)) : window.MSPointerEvent && (b.event.bind(l, "MSPointerDown", h), b.event.bind(l, "MSPointerMove", j), b.event.bind(l, "MSPointerUp", k))) } } }, H = function (d, e) { var f = this; if (void 0 === e && (e = {}), "string" == typeof d && (d = document.querySelector(d)), !d || !d.nodeName) throw new Error("no element is specified to initialize PerfectScrollbar"); for (var g in this.element = d, d.classList.add(z.main), this.settings = F(), e) this.settings[g] = e[g]; this.containerWidth = null, this.containerHeight = null, this.contentWidth = null, this.contentHeight = null; var h = function () { return d.classList.add(z.state.focus) }, i = function () { return d.classList.remove(z.state.focus) }; this.isRtl = "rtl" === a(d).direction, !0 === this.isRtl && d.classList.add(z.rtl), this.isNegativeScroll = function () { var a = d.scrollLeft, b = null; return d.scrollLeft = -1, b = 0 > d.scrollLeft, d.scrollLeft = a, b }(), this.negativeScrollAdjustment = this.isNegativeScroll ? d.scrollWidth - d.clientWidth : 0, this.event = new D, this.ownerDocument = d.ownerDocument || document, this.scrollbarXRail = c(z.element.rail("x")), d.appendChild(this.scrollbarXRail), this.scrollbarX = c(z.element.thumb("x")), this.scrollbarXRail.appendChild(this.scrollbarX), this.scrollbarX.setAttribute("tabindex", 0), this.event.bind(this.scrollbarX, "focus", h), this.event.bind(this.scrollbarX, "blur", i), this.scrollbarXActive = null, this.scrollbarXWidth = null, this.scrollbarXLeft = null; var j = a(this.scrollbarXRail); this.scrollbarXBottom = parseInt(j.bottom, 10), isNaN(this.scrollbarXBottom) ? (this.isScrollbarXUsingBottom = !1, this.scrollbarXTop = n(j.top)) : this.isScrollbarXUsingBottom = !0, this.railBorderXWidth = n(j.borderLeftWidth) + n(j.borderRightWidth), b(this.scrollbarXRail, { display: "block" }), this.railXMarginWidth = n(j.marginLeft) + n(j.marginRight), b(this.scrollbarXRail, { display: "" }), this.railXWidth = null, this.railXRatio = null, this.scrollbarYRail = c(z.element.rail("y")), d.appendChild(this.scrollbarYRail), this.scrollbarY = c(z.element.thumb("y")), this.scrollbarYRail.appendChild(this.scrollbarY), this.scrollbarY.setAttribute("tabindex", 0), this.event.bind(this.scrollbarY, "focus", h), this.event.bind(this.scrollbarY, "blur", i), this.scrollbarYActive = null, this.scrollbarYHeight = null, this.scrollbarYTop = null; var k = a(this.scrollbarYRail); this.scrollbarYRight = parseInt(k.right, 10), isNaN(this.scrollbarYRight) ? (this.isScrollbarYUsingRight = !1, this.scrollbarYLeft = n(k.left)) : this.isScrollbarYUsingRight = !0, this.scrollbarYOuterWidth = this.isRtl ? p(this.scrollbarY) : null, this.railBorderYWidth = n(k.borderTopWidth) + n(k.borderBottomWidth), b(this.scrollbarYRail, { display: "block" }), this.railYMarginHeight = n(k.marginTop) + n(k.marginBottom), b(this.scrollbarYRail, { display: "" }), this.railYHeight = null, this.railYRatio = null, this.reach = { x: 0 >= d.scrollLeft ? "start" : d.scrollLeft >= this.contentWidth - this.containerWidth ? "end" : null, y: 0 >= d.scrollTop ? "start" : d.scrollTop >= this.contentHeight - this.containerHeight ? "end" : null }, this.isAlive = !0, this.settings.handlers.forEach(function (a) { return G[a](f) }), this.lastScrollTop = v(d.scrollTop), this.lastScrollLeft = d.scrollLeft, this.event.bind(this.element, "scroll", function (a) { return f.onScroll(a) }), q(this) }; return H.prototype.update = function () { this.isAlive && (// Recalcuate negative scrollLeft adjustment // Recalculate rail margins // Hide scrollbars not to affect scrollWidth and scrollHeight this.negativeScrollAdjustment = this.isNegativeScroll ? this.element.scrollWidth - this.element.clientWidth : 0, b(this.scrollbarXRail, { display: "block" }), b(this.scrollbarYRail, { display: "block" }), this.railXMarginWidth = n(a(this.scrollbarXRail).marginLeft) + n(a(this.scrollbarXRail).marginRight), this.railYMarginHeight = n(a(this.scrollbarYRail).marginTop) + n(a(this.scrollbarYRail).marginBottom), b(this.scrollbarXRail, { display: "none" }), b(this.scrollbarYRail, { display: "none" }), q(this), l(this, "top", 0, !1, !0), l(this, "left", 0, !1, !0), b(this.scrollbarXRail, { display: "" }), b(this.scrollbarYRail, { display: "" })) }, H.prototype.onScroll = function () { this.isAlive && (q(this), l(this, "top", this.element.scrollTop - this.lastScrollTop), l(this, "left", this.element.scrollLeft - this.lastScrollLeft), this.lastScrollTop = v(this.element.scrollTop), this.lastScrollLeft = this.element.scrollLeft) }, H.prototype.destroy = function () { this.isAlive && (// unset elements this.event.unbindAll(), e(this.scrollbarX), e(this.scrollbarY), e(this.scrollbarXRail), e(this.scrollbarYRail), this.removePsClasses(), this.element = null, this.scrollbarX = null, this.scrollbarY = null, this.scrollbarXRail = null, this.scrollbarYRail = null, this.isAlive = !1) }, H.prototype.removePsClasses = function () { this.element.className = this.element.className.split(" ").filter(function (a) { return !a.match(/^ps([-_].+|)$/) }).join(" ") }, H });