mirror of
https://github.com/tenrok/OverlayScrollbars.git
synced 2026-06-14 11:02:28 +03:00
Rene
733 lines
21 KiB
JavaScript
733 lines
21 KiB
JavaScript
(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined'
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? (module.exports = factory())
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: typeof define === 'function' && define.amd
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? define(factory)
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: ((global = typeof globalThis !== 'undefined' ? globalThis : global || self), (global.OverlayScrollbars = factory()));
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})(this, function () {
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'use strict';
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function isNumber(obj) {
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return typeof obj === 'number';
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}
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function isString(obj) {
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return typeof obj === 'string';
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}
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function isFunction(obj) {
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return typeof obj === 'function';
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}
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function isUndefined(obj) {
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return obj === undefined;
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}
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function isArray(obj) {
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return Array.isArray(obj);
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}
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function isArrayLike(obj) {
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var length = !!obj && obj.length;
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return isArray(obj) || (!isFunction(obj) && isNumber(length) && length > -1 && length % 1 == 0);
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}
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function getSetProp(topLeft, fallback, elm, value) {
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if (isUndefined(value)) {
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return elm ? elm[topLeft] : fallback;
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}
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elm && (elm[topLeft] = value);
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}
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var removeAttr = function removeAttr(elm, attrName) {
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elm == null ? void 0 : elm.removeAttribute(attrName);
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};
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function scrollLeft(elm, value) {
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return getSetProp('scrollLeft', 0, elm, value);
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}
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function scrollTop(elm, value) {
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return getSetProp('scrollTop', 0, elm, value);
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}
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var rnothtmlwhite = /[^\x20\t\r\n\f]+/g;
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var classListAction = function classListAction(elm, className, action) {
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var clazz;
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var i = 0;
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var result = false;
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if (elm && isString(className)) {
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var classes = className.match(rnothtmlwhite) || [];
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result = classes.length > 0;
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while ((clazz = classes[i++])) {
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result = action(elm.classList, clazz) && result;
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}
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}
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return result;
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};
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var addClass = function addClass(elm, className) {
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classListAction(elm, className, function (classList, clazz) {
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return classList.add(clazz);
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});
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};
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function each(source, callback) {
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if (isArrayLike(source)) {
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for (var i = 0; i < source.length; i++) {
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if (callback(source[i], i, source) === false) {
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break;
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}
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}
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} else if (source) {
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each(Object.keys(source), function (key) {
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return callback(source[key], key, source);
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});
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}
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return source;
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}
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var from = function from(arr) {
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if (Array.from) {
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return Array.from(arr);
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}
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var result = [];
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each(arr, function (elm) {
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result.push(elm);
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});
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return result;
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};
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var runEach = function runEach(arr) {
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if (arr instanceof Set) {
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arr.forEach(function (fn) {
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return fn && fn();
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});
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} else {
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each(arr, function (fn) {
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return fn && fn();
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});
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}
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};
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var contents = function contents(elm) {
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return elm ? from(elm.childNodes) : [];
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};
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var parent = function parent(elm) {
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return elm ? elm.parentElement : null;
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};
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var before = function before(parentElm, preferredAnchor, insertedElms) {
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if (insertedElms) {
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var anchor = preferredAnchor;
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var fragment;
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if (parentElm) {
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if (isArrayLike(insertedElms)) {
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fragment = document.createDocumentFragment();
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each(insertedElms, function (insertedElm) {
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if (insertedElm === anchor) {
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anchor = insertedElm.previousSibling;
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}
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fragment.appendChild(insertedElm);
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});
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} else {
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fragment = insertedElms;
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}
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if (preferredAnchor) {
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if (!anchor) {
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anchor = parentElm.firstChild;
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} else if (anchor !== preferredAnchor) {
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anchor = anchor.nextSibling;
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}
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}
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parentElm.insertBefore(fragment, anchor);
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}
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}
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};
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var appendChildren = function appendChildren(node, children) {
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before(node, null, children);
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};
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var prependChildren = function prependChildren(node, children) {
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before(node, node && node.firstChild, children);
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};
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var removeElements = function removeElements(nodes) {
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if (isArrayLike(nodes)) {
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each(from(nodes), function (e) {
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return removeElements(e);
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});
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} else if (nodes) {
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var parentElm = parent(nodes);
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if (parentElm) {
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parentElm.removeChild(nodes);
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}
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}
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};
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var createDiv = function createDiv() {
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return document.createElement('div');
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};
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var createDOM = function createDOM(html) {
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var createdDiv = createDiv();
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createdDiv.innerHTML = html.trim();
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return each(contents(createdDiv), function (elm) {
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return removeElements(elm);
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});
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};
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var zeroObj = {
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w: 0,
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h: 0,
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};
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var windowSize = function windowSize() {
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return {
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w: window.innerWidth,
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h: window.innerHeight,
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};
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};
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var offsetSize = function offsetSize(elm) {
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return elm
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? {
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w: elm.offsetWidth,
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h: elm.offsetHeight,
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}
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: zeroObj;
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};
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var clientSize = function clientSize(elm) {
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return elm
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? {
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w: elm.clientWidth,
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h: elm.clientHeight,
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}
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: zeroObj;
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};
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var getBoundingClientRect = function getBoundingClientRect(elm) {
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return elm.getBoundingClientRect();
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};
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var passiveEventsSupport;
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var supportPassiveEvents = function supportPassiveEvents() {
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if (passiveEventsSupport === undefined) {
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passiveEventsSupport = false;
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try {
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window.addEventListener(
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'test',
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null,
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Object.defineProperty({}, 'passive', {
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get: function get() {
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passiveEventsSupport = true;
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},
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})
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);
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} catch (e) {}
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}
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return passiveEventsSupport;
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};
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var off = function off(target, eventNames, listener, capture) {
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each(eventNames.split(' '), function (eventName) {
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target.removeEventListener(eventName, listener, capture);
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});
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};
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var on = function on(target, eventNames, listener, options) {
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var doSupportPassiveEvents = supportPassiveEvents();
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var passive = (doSupportPassiveEvents && options && options._passive) || false;
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var capture = (options && options._capture) || false;
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var once = (options && options._once) || false;
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var offListeners = [];
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var nativeOptions = doSupportPassiveEvents
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? {
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passive: passive,
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capture: capture,
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}
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: capture;
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each(eventNames.split(' '), function (eventName) {
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var finalListener = once
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? function (evt) {
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target.removeEventListener(eventName, finalListener, capture);
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listener && listener(evt);
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}
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: listener;
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offListeners.push(off.bind(null, target, eventName, finalListener, capture));
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target.addEventListener(eventName, finalListener, nativeOptions);
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});
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return runEach.bind(0, offListeners);
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};
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var stopPropagation = function stopPropagation(evt) {
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return evt.stopPropagation();
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};
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var preventDefault = function preventDefault(evt) {
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return evt.preventDefault();
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};
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var hasOwnProperty = function hasOwnProperty(obj, prop) {
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return Object.prototype.hasOwnProperty.call(obj, prop);
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};
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var keys = function keys(obj) {
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return obj ? Object.keys(obj) : [];
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};
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var cssNumber = {
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animationiterationcount: 1,
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columncount: 1,
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fillopacity: 1,
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flexgrow: 1,
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flexshrink: 1,
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fontweight: 1,
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lineheight: 1,
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opacity: 1,
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order: 1,
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orphans: 1,
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widows: 1,
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zindex: 1,
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zoom: 1,
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};
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var adaptCSSVal = function adaptCSSVal(prop, val) {
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return !cssNumber[prop.toLowerCase()] && isNumber(val) ? val + 'px' : val;
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};
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var getCSSVal = function getCSSVal(elm, computedStyle, prop) {
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return computedStyle != null ? computedStyle.getPropertyValue(prop) : elm.style[prop];
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};
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var setCSSVal = function setCSSVal(elm, prop, val) {
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try {
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if (elm && elm.style[prop] !== undefined) {
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elm.style[prop] = adaptCSSVal(prop, val);
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}
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} catch (e) {}
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};
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function style(elm, styles) {
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var getSingleStyle = isString(styles);
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var getStyles = isArray(styles) || getSingleStyle;
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if (getStyles) {
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var getStylesResult = getSingleStyle ? '' : {};
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if (elm) {
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var computedStyle = window.getComputedStyle(elm, null);
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getStylesResult = getSingleStyle
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? getCSSVal(elm, computedStyle, styles)
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: styles.reduce(function (result, key) {
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result[key] = getCSSVal(elm, computedStyle, key);
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return result;
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}, getStylesResult);
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}
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return getStylesResult;
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}
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each(keys(styles), function (key) {
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return setCSSVal(elm, key, styles[key]);
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});
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}
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var zeroObj$1 = {
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x: 0,
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y: 0,
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};
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var absoluteCoordinates = function absoluteCoordinates(elm) {
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var rect = elm ? getBoundingClientRect(elm) : 0;
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return rect
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? {
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x: rect.left + window.pageYOffset,
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y: rect.top + window.pageXOffset,
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}
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: zeroObj$1;
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};
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var firstLetterToUpper = function firstLetterToUpper(str) {
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return str.charAt(0).toUpperCase() + str.slice(1);
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};
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var jsPrefixes = ['WebKit', 'Moz', 'O', 'MS', 'webkit', 'moz', 'o', 'ms'];
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var jsCache = {};
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var jsAPI = function jsAPI(name) {
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var result = jsCache[name] || window[name];
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if (hasOwnProperty(jsCache, name)) {
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return result;
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}
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each(jsPrefixes, function (prefix) {
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result = result || window[prefix + firstLetterToUpper(name)];
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return !result;
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});
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jsCache[name] = result;
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return result;
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};
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var resizeObserver = jsAPI('ResizeObserver');
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function createCommonjsModule(fn, basedir, module) {
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return (
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(module = {
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path: basedir,
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exports: {},
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require: function (path, base) {
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return commonjsRequire(path, base === undefined || base === null ? module.path : base);
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},
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}),
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fn(module, module.exports),
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module.exports
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);
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}
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function commonjsRequire() {
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throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
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}
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var _extends_1 = createCommonjsModule(function (module) {
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function _extends() {
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module.exports = _extends =
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Object.assign ||
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function (target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i];
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for (var key in source) {
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if (Object.prototype.hasOwnProperty.call(source, key)) {
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target[key] = source[key];
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}
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}
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}
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return target;
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};
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return _extends.apply(this, arguments);
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}
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module.exports = _extends;
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});
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var templateTypePrefixSuffix = ['__TPL_', '_TYPE__'];
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var optionsTemplateTypes = ['boolean', 'number', 'string', 'array', 'object', 'function', 'null'].reduce(function (result, item) {
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result[item] = templateTypePrefixSuffix[0] + item + templateTypePrefixSuffix[1];
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return result;
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}, {});
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var environmentInstance;
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var abs = Math.abs,
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round = Math.round;
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var environmentElmId = 'os-environment';
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var getNativeScrollbarSize = function getNativeScrollbarSize(body, measureElm) {
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appendChildren(body, measureElm);
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var cSize = clientSize(measureElm);
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var oSize = offsetSize(measureElm);
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return {
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x: oSize.h - cSize.h,
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y: oSize.w - cSize.w,
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};
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};
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var getNativeScrollbarStyling = function getNativeScrollbarStyling(testElm) {
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var result = false;
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addClass(testElm, 'os-viewport-native-scrollbars-invisible');
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try {
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result =
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style(testElm, 'scrollbar-width') === 'none' ||
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window.getComputedStyle(testElm, '::-webkit-scrollbar').getPropertyValue('display') === 'none';
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} catch (ex) {}
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return result;
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};
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var getRtlScrollBehavior = function getRtlScrollBehavior(parentElm, childElm) {
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var strHidden = 'hidden';
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style(parentElm, {
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overflowX: strHidden,
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overflowY: strHidden,
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direction: 'rtl',
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});
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scrollLeft(parentElm, 0);
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var parentOffset = absoluteCoordinates(parentElm);
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var childOffset = absoluteCoordinates(childElm);
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scrollLeft(parentElm, -999);
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var childOffsetAfterScroll = absoluteCoordinates(childElm);
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return {
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i: parentOffset.x === childOffset.x,
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n: childOffset.x !== childOffsetAfterScroll.x,
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};
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};
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var getWindowDPR = function getWindowDPR() {
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var dDPI = window.screen.deviceXDPI || 0;
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var sDPI = window.screen.logicalXDPI || 1;
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return window.devicePixelRatio || dDPI / sDPI;
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};
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var diffBiggerThanOne = function diffBiggerThanOne(valOne, valTwo) {
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var absValOne = abs(valOne);
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var absValTwo = abs(valTwo);
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return !(absValOne === absValTwo || absValOne + 1 === absValTwo || absValOne - 1 === absValTwo);
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};
|
|
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var createEnvironment = function createEnvironment() {
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var _document = document,
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body = _document.body;
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var envDOM = createDOM('<div id="' + environmentElmId + '"><div></div></div>');
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var envElm = envDOM[0];
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var envChildElm = envElm.firstChild;
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var onChangedListener = new Set();
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var nativeScrollBarSize = getNativeScrollbarSize(body, envElm);
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var nativeScrollbarIsOverlaid = {
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x: nativeScrollBarSize.x === 0,
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y: nativeScrollBarSize.y === 0,
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};
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var env = {
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_autoUpdateLoop: false,
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_nativeScrollbarSize: nativeScrollBarSize,
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_nativeScrollbarIsOverlaid: nativeScrollbarIsOverlaid,
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_nativeScrollbarStyling: getNativeScrollbarStyling(envElm),
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_rtlScrollBehavior: getRtlScrollBehavior(envElm, envChildElm),
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_addListener: function _addListener(listener) {
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onChangedListener.add(listener);
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},
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_removeListener: function _removeListener(listener) {
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onChangedListener.delete(listener);
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},
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};
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removeAttr(envElm, 'style');
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removeElements(envElm);
|
|
|
|
if (!nativeScrollbarIsOverlaid.x || !nativeScrollbarIsOverlaid.y) {
|
|
var size = windowSize();
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|
var dpr = getWindowDPR();
|
|
var scrollbarSize = nativeScrollBarSize;
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|
window.addEventListener('resize', function () {
|
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if (onChangedListener.size) {
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var sizeNew = windowSize();
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|
var deltaSize = {
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w: sizeNew.w - size.w,
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|
h: sizeNew.h - size.h,
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|
};
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|
if (deltaSize.w === 0 && deltaSize.h === 0) return;
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|
var deltaAbsSize = {
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|
w: abs(deltaSize.w),
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h: abs(deltaSize.h),
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|
};
|
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var deltaAbsRatio = {
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w: abs(round(sizeNew.w / (size.w / 100.0))),
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h: abs(round(sizeNew.h / (size.h / 100.0))),
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};
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var dprNew = getWindowDPR();
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var deltaIsBigger = deltaAbsSize.w > 2 && deltaAbsSize.h > 2;
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var difference = !diffBiggerThanOne(deltaAbsRatio.w, deltaAbsRatio.h);
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var dprChanged = dprNew !== dpr && dpr > 0;
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var isZoom = deltaIsBigger && difference && dprChanged;
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|
|
|
if (isZoom) {
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var newScrollbarSize = (environmentInstance._nativeScrollbarSize = getNativeScrollbarSize(body, envElm));
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removeElements(envElm);
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|
|
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if (scrollbarSize.x !== newScrollbarSize.x || scrollbarSize.y !== newScrollbarSize.y) {
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runEach(onChangedListener);
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}
|
|
|
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scrollbarSize = newScrollbarSize;
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}
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|
|
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size = sizeNew;
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dpr = dprNew;
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}
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});
|
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}
|
|
|
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return env;
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|
};
|
|
|
|
var getEnvironment = function getEnvironment() {
|
|
if (!environmentInstance) {
|
|
environmentInstance = createEnvironment();
|
|
}
|
|
|
|
return environmentInstance;
|
|
};
|
|
|
|
var animationStartEventName = 'animationstart';
|
|
var scrollEventName = 'scroll';
|
|
var scrollAmount = 3333333;
|
|
var ResizeObserverConstructor = jsAPI('ResizeObserver');
|
|
var classNameSizeObserver = 'os-size-observer';
|
|
var classNameSizeObserverListener = classNameSizeObserver + '-listener';
|
|
var classNameSizeObserverListenerItem = classNameSizeObserverListener + '-item';
|
|
var classNameSizeObserverListenerItemFinal = classNameSizeObserverListenerItem + '-final';
|
|
var cAF = cancelAnimationFrame;
|
|
var rAF = requestAnimationFrame;
|
|
|
|
var getDirection = function getDirection(elm) {
|
|
return style(elm, 'direction');
|
|
};
|
|
|
|
var createSizeObserver = function createSizeObserver(target, onSizeChangedCallback, direction) {
|
|
var rtlScrollBehavior = getEnvironment()._rtlScrollBehavior;
|
|
|
|
var baseElements = createDOM('<div class="' + classNameSizeObserver + '"><div class="' + classNameSizeObserverListener + '"></div></div>');
|
|
var sizeObserver = baseElements[0];
|
|
var listenerElement = sizeObserver.firstChild;
|
|
|
|
var onSizeChangedCallbackProxy = function onSizeChangedCallbackProxy(dir) {
|
|
if (direction) {
|
|
var rtl = getDirection(sizeObserver) === 'rtl';
|
|
scrollLeft(sizeObserver, rtl ? (rtlScrollBehavior.n ? -scrollAmount : rtlScrollBehavior.i ? 0 : scrollAmount) : scrollAmount);
|
|
scrollTop(sizeObserver, scrollAmount);
|
|
}
|
|
|
|
onSizeChangedCallback(dir === true);
|
|
};
|
|
|
|
var offListeners = [];
|
|
var appearCallback = onSizeChangedCallbackProxy;
|
|
|
|
if (ResizeObserverConstructor) {
|
|
var resizeObserverInstance = new ResizeObserverConstructor(onSizeChangedCallbackProxy);
|
|
resizeObserverInstance.observe(listenerElement);
|
|
} else {
|
|
var observerElementChildren = createDOM(
|
|
'<div class="' +
|
|
classNameSizeObserverListenerItem +
|
|
'" dir="ltr"><div class="' +
|
|
classNameSizeObserverListenerItem +
|
|
'"><div class="' +
|
|
classNameSizeObserverListenerItemFinal +
|
|
'"></div></div><div class="' +
|
|
classNameSizeObserverListenerItem +
|
|
'"><div class="' +
|
|
classNameSizeObserverListenerItemFinal +
|
|
'" style="width: 200%; height: 200%"></div></div></div>'
|
|
);
|
|
appendChildren(listenerElement, observerElementChildren);
|
|
var observerElementChildrenRoot = observerElementChildren[0];
|
|
var shrinkElement = observerElementChildrenRoot.lastChild;
|
|
var expandElement = observerElementChildrenRoot.firstChild;
|
|
var expandElementChild = expandElement == null ? void 0 : expandElement.firstChild;
|
|
var cacheSize = offsetSize(listenerElement);
|
|
var currSize = cacheSize;
|
|
var isDirty = false;
|
|
var rAFId;
|
|
|
|
var reset = function reset() {
|
|
scrollLeft(expandElement, scrollAmount);
|
|
scrollTop(expandElement, scrollAmount);
|
|
scrollLeft(shrinkElement, scrollAmount);
|
|
scrollTop(shrinkElement, scrollAmount);
|
|
};
|
|
|
|
var onResized = function onResized() {
|
|
rAFId = 0;
|
|
if (!isDirty) return;
|
|
cacheSize = currSize;
|
|
onSizeChangedCallbackProxy();
|
|
};
|
|
|
|
var onScroll = function onScroll(scrollEvent) {
|
|
currSize = offsetSize(listenerElement);
|
|
isDirty = !scrollEvent || currSize.w !== cacheSize.w || currSize.h !== cacheSize.h;
|
|
|
|
if (scrollEvent && isDirty && !rAFId) {
|
|
cAF(rAFId);
|
|
rAFId = rAF(onResized);
|
|
} else if (!scrollEvent) onResized();
|
|
|
|
reset();
|
|
|
|
if (scrollEvent) {
|
|
preventDefault(scrollEvent);
|
|
stopPropagation(scrollEvent);
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
offListeners.push(on(expandElement, scrollEventName, onScroll));
|
|
offListeners.push(on(shrinkElement, scrollEventName, onScroll));
|
|
style(expandElementChild, {
|
|
width: scrollAmount,
|
|
height: scrollAmount,
|
|
});
|
|
reset();
|
|
appearCallback = onScroll;
|
|
}
|
|
|
|
if (direction) {
|
|
var dirCache;
|
|
offListeners.push(
|
|
on(sizeObserver, scrollEventName, function (event) {
|
|
var dir = getDirection(sizeObserver);
|
|
var changed = dir !== dirCache;
|
|
|
|
if (changed) {
|
|
if (dir === 'rtl') {
|
|
style(listenerElement, {
|
|
left: 'auto',
|
|
right: 0,
|
|
});
|
|
} else {
|
|
style(listenerElement, {
|
|
left: 0,
|
|
right: 'auto',
|
|
});
|
|
}
|
|
|
|
dirCache = dir;
|
|
onSizeChangedCallbackProxy(true);
|
|
}
|
|
|
|
preventDefault(event);
|
|
stopPropagation(event);
|
|
return false;
|
|
})
|
|
);
|
|
}
|
|
|
|
offListeners.push(on(sizeObserver, animationStartEventName, appearCallback));
|
|
prependChildren(target, sizeObserver);
|
|
return function () {
|
|
runEach(offListeners);
|
|
removeElements(sizeObserver);
|
|
};
|
|
};
|
|
|
|
var index = function () {
|
|
return [
|
|
getEnvironment(),
|
|
createSizeObserver(document.body, function () {}),
|
|
createDOM(
|
|
'\
|
|
<div class="os-host">\
|
|
<div class="os-resize-observer-host"></div>\
|
|
<div class="os-padding">\
|
|
<div class="os-viewport">\
|
|
<div class="os-content">\
|
|
fdfhdfgh\
|
|
</div>\
|
|
</div>\
|
|
</div>\
|
|
<div class="os-scrollbar os-scrollbar-horizontal">\
|
|
<div class="os-scrollbar-track">\
|
|
<div class="os-scrollbar-handle"></div>\
|
|
</div>\
|
|
</div>\
|
|
<div class="os-scrollbar os-scrollbar-vertical">\
|
|
<div class="os-scrollbar-track">\
|
|
<div class="os-scrollbar-handle"></div>\
|
|
</div>\
|
|
</div>\
|
|
<div class="os-scrollbar-corner"></div>\
|
|
</div>'
|
|
),
|
|
];
|
|
};
|
|
|
|
return index;
|
|
});
|
|
//# sourceMappingURL=overlayscrollbars.js.map
|