lib/perfect-scrollbar/perfect-scrollbar.min.js

/*!
 * perfect-scrollbar v1.5.2
 * 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.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
});
//# sourceMappingURL=perfect-scrollbar.min.js.map