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322 lines
10 KiB
322 lines
10 KiB
/*!
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* Bootstrap event-handler.js v5.1.3 (https://getbootstrap.com/)
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* Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.EventHandler = factory());
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})(this, (function () { 'use strict';
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.1.3): util/index.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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const getjQuery = () => {
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const {
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jQuery
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} = window;
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if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
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return jQuery;
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}
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return null;
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};
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.1.3): dom/event-handler.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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/**
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* ------------------------------------------------------------------------
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* Constants
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* ------------------------------------------------------------------------
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*/
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const namespaceRegex = /[^.]*(?=\..*)\.|.*/;
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const stripNameRegex = /\..*/;
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const stripUidRegex = /::\d+$/;
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const eventRegistry = {}; // Events storage
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let uidEvent = 1;
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const customEvents = {
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mouseenter: 'mouseover',
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mouseleave: 'mouseout'
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};
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const customEventsRegex = /^(mouseenter|mouseleave)/i;
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const nativeEvents = new Set(['click', 'dblclick', 'mouseup', 'mousedown', 'contextmenu', 'mousewheel', 'DOMMouseScroll', 'mouseover', 'mouseout', 'mousemove', 'selectstart', 'selectend', 'keydown', 'keypress', 'keyup', 'orientationchange', 'touchstart', 'touchmove', 'touchend', 'touchcancel', 'pointerdown', 'pointermove', 'pointerup', 'pointerleave', 'pointercancel', 'gesturestart', 'gesturechange', 'gestureend', 'focus', 'blur', 'change', 'reset', 'select', 'submit', 'focusin', 'focusout', 'load', 'unload', 'beforeunload', 'resize', 'move', 'DOMContentLoaded', 'readystatechange', 'error', 'abort', 'scroll']);
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/**
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* ------------------------------------------------------------------------
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* Private methods
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* ------------------------------------------------------------------------
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*/
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function getUidEvent(element, uid) {
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return uid && `${uid}::${uidEvent++}` || element.uidEvent || uidEvent++;
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}
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function getEvent(element) {
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const uid = getUidEvent(element);
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element.uidEvent = uid;
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eventRegistry[uid] = eventRegistry[uid] || {};
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return eventRegistry[uid];
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}
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function bootstrapHandler(element, fn) {
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return function handler(event) {
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event.delegateTarget = element;
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if (handler.oneOff) {
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EventHandler.off(element, event.type, fn);
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}
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return fn.apply(element, [event]);
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};
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}
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function bootstrapDelegationHandler(element, selector, fn) {
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return function handler(event) {
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const domElements = element.querySelectorAll(selector);
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for (let {
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target
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} = event; target && target !== this; target = target.parentNode) {
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for (let i = domElements.length; i--;) {
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if (domElements[i] === target) {
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event.delegateTarget = target;
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if (handler.oneOff) {
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EventHandler.off(element, event.type, selector, fn);
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}
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return fn.apply(target, [event]);
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}
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}
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} // To please ESLint
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return null;
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};
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}
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function findHandler(events, handler, delegationSelector = null) {
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const uidEventList = Object.keys(events);
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for (let i = 0, len = uidEventList.length; i < len; i++) {
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const event = events[uidEventList[i]];
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if (event.originalHandler === handler && event.delegationSelector === delegationSelector) {
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return event;
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}
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}
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return null;
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}
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function normalizeParams(originalTypeEvent, handler, delegationFn) {
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const delegation = typeof handler === 'string';
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const originalHandler = delegation ? delegationFn : handler;
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let typeEvent = getTypeEvent(originalTypeEvent);
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const isNative = nativeEvents.has(typeEvent);
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if (!isNative) {
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typeEvent = originalTypeEvent;
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}
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return [delegation, originalHandler, typeEvent];
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}
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function addHandler(element, originalTypeEvent, handler, delegationFn, oneOff) {
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if (typeof originalTypeEvent !== 'string' || !element) {
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return;
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}
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if (!handler) {
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handler = delegationFn;
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delegationFn = null;
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} // in case of mouseenter or mouseleave wrap the handler within a function that checks for its DOM position
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// this prevents the handler from being dispatched the same way as mouseover or mouseout does
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if (customEventsRegex.test(originalTypeEvent)) {
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const wrapFn = fn => {
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return function (event) {
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if (!event.relatedTarget || event.relatedTarget !== event.delegateTarget && !event.delegateTarget.contains(event.relatedTarget)) {
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return fn.call(this, event);
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}
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};
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};
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if (delegationFn) {
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delegationFn = wrapFn(delegationFn);
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} else {
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handler = wrapFn(handler);
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}
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}
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const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn);
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const events = getEvent(element);
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const handlers = events[typeEvent] || (events[typeEvent] = {});
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const previousFn = findHandler(handlers, originalHandler, delegation ? handler : null);
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if (previousFn) {
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previousFn.oneOff = previousFn.oneOff && oneOff;
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return;
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}
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const uid = getUidEvent(originalHandler, originalTypeEvent.replace(namespaceRegex, ''));
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const fn = delegation ? bootstrapDelegationHandler(element, handler, delegationFn) : bootstrapHandler(element, handler);
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fn.delegationSelector = delegation ? handler : null;
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fn.originalHandler = originalHandler;
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fn.oneOff = oneOff;
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fn.uidEvent = uid;
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handlers[uid] = fn;
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element.addEventListener(typeEvent, fn, delegation);
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}
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function removeHandler(element, events, typeEvent, handler, delegationSelector) {
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const fn = findHandler(events[typeEvent], handler, delegationSelector);
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if (!fn) {
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return;
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}
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element.removeEventListener(typeEvent, fn, Boolean(delegationSelector));
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delete events[typeEvent][fn.uidEvent];
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}
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function removeNamespacedHandlers(element, events, typeEvent, namespace) {
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const storeElementEvent = events[typeEvent] || {};
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Object.keys(storeElementEvent).forEach(handlerKey => {
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if (handlerKey.includes(namespace)) {
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const event = storeElementEvent[handlerKey];
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removeHandler(element, events, typeEvent, event.originalHandler, event.delegationSelector);
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}
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});
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}
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function getTypeEvent(event) {
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// allow to get the native events from namespaced events ('click.bs.button' --> 'click')
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event = event.replace(stripNameRegex, '');
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return customEvents[event] || event;
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}
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const EventHandler = {
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on(element, event, handler, delegationFn) {
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addHandler(element, event, handler, delegationFn, false);
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},
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one(element, event, handler, delegationFn) {
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addHandler(element, event, handler, delegationFn, true);
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},
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off(element, originalTypeEvent, handler, delegationFn) {
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if (typeof originalTypeEvent !== 'string' || !element) {
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return;
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}
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const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn);
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const inNamespace = typeEvent !== originalTypeEvent;
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const events = getEvent(element);
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const isNamespace = originalTypeEvent.startsWith('.');
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if (typeof originalHandler !== 'undefined') {
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// Simplest case: handler is passed, remove that listener ONLY.
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if (!events || !events[typeEvent]) {
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return;
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}
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removeHandler(element, events, typeEvent, originalHandler, delegation ? handler : null);
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return;
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}
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if (isNamespace) {
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Object.keys(events).forEach(elementEvent => {
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removeNamespacedHandlers(element, events, elementEvent, originalTypeEvent.slice(1));
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});
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}
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const storeElementEvent = events[typeEvent] || {};
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Object.keys(storeElementEvent).forEach(keyHandlers => {
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const handlerKey = keyHandlers.replace(stripUidRegex, '');
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if (!inNamespace || originalTypeEvent.includes(handlerKey)) {
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const event = storeElementEvent[keyHandlers];
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removeHandler(element, events, typeEvent, event.originalHandler, event.delegationSelector);
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}
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});
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},
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trigger(element, event, args) {
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if (typeof event !== 'string' || !element) {
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return null;
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}
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const $ = getjQuery();
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const typeEvent = getTypeEvent(event);
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const inNamespace = event !== typeEvent;
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const isNative = nativeEvents.has(typeEvent);
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let jQueryEvent;
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let bubbles = true;
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let nativeDispatch = true;
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let defaultPrevented = false;
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let evt = null;
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if (inNamespace && $) {
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jQueryEvent = $.Event(event, args);
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$(element).trigger(jQueryEvent);
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bubbles = !jQueryEvent.isPropagationStopped();
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nativeDispatch = !jQueryEvent.isImmediatePropagationStopped();
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defaultPrevented = jQueryEvent.isDefaultPrevented();
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}
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if (isNative) {
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evt = document.createEvent('HTMLEvents');
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evt.initEvent(typeEvent, bubbles, true);
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} else {
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evt = new CustomEvent(event, {
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bubbles,
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cancelable: true
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});
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} // merge custom information in our event
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if (typeof args !== 'undefined') {
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Object.keys(args).forEach(key => {
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Object.defineProperty(evt, key, {
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get() {
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return args[key];
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}
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});
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});
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}
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if (defaultPrevented) {
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evt.preventDefault();
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}
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if (nativeDispatch) {
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element.dispatchEvent(evt);
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}
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if (evt.defaultPrevented && typeof jQueryEvent !== 'undefined') {
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jQueryEvent.preventDefault();
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}
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return evt;
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}
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};
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return EventHandler;
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}));
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//# sourceMappingURL=event-handler.js.map
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