/*!
* Bootstrap event-handler.js v5.0.2 (https://getbootstrap.com/)
* Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.EventHandler = factory());
}(this, (function () { 'use strict';
const getjQuery = () => {
const {
jQuery
} = window;
if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
return jQuery;
}
return null;
};
/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.2): dom/event-handler.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const namespaceRegex = /[^.]*(?=\..*)\.|.*/;
const stripNameRegex = /\..*/;
const stripUidRegex = /::\d+$/;
const eventRegistry = {}; // Events storage
let uidEvent = 1;
const customEvents = {
mouseenter: 'mouseover',
mouseleave: 'mouseout'
};
const customEventsRegex = /^(mouseenter|mouseleave)/i;
const nativeEvents = new Set(['click', 'dblclick', 'mouseup', 'mousedown', 'contextmenu', 'mousewheel', 'DOMMouseScroll', 'mouseover', 'mouseout', 'mousemove', 'selectstart', 'selectend', 'keydown', 'keypress', 'keyup', 'orientationchange', 'touchstart', 'touchmove', 'touchend', 'touchcancel', 'pointerdown', 'pointermove', 'pointerup', 'pointerleave', 'pointercancel', 'gesturestart', 'gesturechange', 'gestureend', 'focus', 'blur', 'change', 'reset', 'select', 'submit', 'focusin', 'focusout', 'load', 'unload', 'beforeunload', 'resize', 'move', 'DOMContentLoaded', 'readystatechange', 'error', 'abort', 'scroll']);
/**
* ------------------------------------------------------------------------
* Private methods
* ------------------------------------------------------------------------
*/
function getUidEvent(element, uid) {
return uid && `${uid}::${uidEvent++}` || element.uidEvent || uidEvent++;
}
function getEvent(element) {
const uid = getUidEvent(element);
element.uidEvent = uid;
eventRegistry[uid] = eventRegistry[uid] || {};
return eventRegistry[uid];
}
function bootstrapHandler(element, fn) {
return function handler(event) {
event.delegateTarget = element;
if (handler.oneOff) {
EventHandler.off(element, event.type, fn);
}
return fn.apply(element, [event]);
};
}
function bootstrapDelegationHandler(element, selector, fn) {
return function handler(event) {
const domElements = element.querySelectorAll(selector);
for (let {
target
} = event; target && target !== this; target = target.parentNode) {
for (let i = domElements.length; i--;) {
if (domElements[i] === target) {
event.delegateTarget = target;
if (handler.oneOff) {
// eslint-disable-next-line unicorn/consistent-destructuring
EventHandler.off(element, event.type, selector, fn);
}
return fn.apply(target, [event]);
}
}
} // To please ESLint
return null;
};
}
function findHandler(events, handler, delegationSelector = null) {
const uidEventList = Object.keys(events);
for (let i = 0, len = uidEventList.length; i < len; i++) {
const event = events[uidEventList[i]];
if (event.originalHandler === handler && event.delegationSelector === delegationSelector) {
return event;
}
}
return null;
}
function normalizeParams(originalTypeEvent, handler, delegationFn) {
const delegation = typeof handler === 'string';
const originalHandler = delegation ? delegationFn : handler;
let typeEvent = getTypeEvent(originalTypeEvent);
const isNative = nativeEvents.has(typeEvent);
if (!isNative) {
typeEvent = originalTypeEvent;
}
return [delegation, originalHandler, typeEvent];
}
function addHandler(element, originalTypeEvent, handler, delegationFn, oneOff) {
if (typeof originalTypeEvent !== 'string' || !element) {
return;
}
if (!handler) {
handler = delegationFn;
delegationFn = null;
} // in case of mouseenter or mouseleave wrap the handler within a function that checks for its DOM position
// this prevents the handler from being dispatched the same way as mouseover or mouseout does
if (customEventsRegex.test(originalTypeEvent)) {
const wrapFn = fn => {
return function (event) {
if (!event.relatedTarget || event.relatedTarget !== event.delegateTarget && !event.delegateTarget.contains(event.relatedTarget)) {
return fn.call(this, event);
}
};
};
if (delegationFn) {
delegationFn = wrapFn(delegationFn);
} else {
handler = wrapFn(handler);
}
}
const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn);
const events = getEvent(element);
const handlers = events[typeEvent] || (events[typeEvent] = {});
const previousFn = findHandler(handlers, originalHandler, delegation ? handler : null);
if (previousFn) {
previousFn.oneOff = previousFn.oneOff && oneOff;
return;
}
const uid = getUidEvent(originalHandler, originalTypeEvent.replace(namespaceRegex, ''));
const fn = delegation ? bootstrapDelegationHandler(element, handler, delegationFn) : bootstrapHandler(element, handler);
fn.delegationSelector = delegation ? handler : null;
fn.originalHandler = originalHandler;
fn.oneOff = oneOff;
fn.uidEvent = uid;
handlers[uid] = fn;
element.addEventListener(typeEvent, fn, delegation);
}
function removeHandler(element, events, typeEvent, handler, delegationSelector) {
const fn = findHandler(events[typeEvent], handler, delegationSelector);
if (!fn) {
return;
}
element.removeEventListener(typeEvent, fn, Boolean(delegationSelector));
delete events[typeEvent][fn.uidEvent];
}
function removeNamespacedHandlers(element, events, typeEvent, namespace) {
const storeElementEvent = events[typeEvent] || {};
Object.keys(storeElementEvent).forEach(handlerKey => {
if (handlerKey.includes(namespace)) {
const event = storeElementEvent[handlerKey];
removeHandler(element, events, typeEvent, event.originalHandler, event.delegationSelector);
}
});
}
function getTypeEvent(event) {
// allow to get the native events from namespaced events ('click.bs.button' --> 'click')
event = event.replace(stripNameRegex, '');
return customEvents[event] || event;
}
const EventHandler = {
on(element, event, handler, delegationFn) {
addHandler(element, event, handler, delegationFn, false);
},
one(element, event, handler, delegationFn) {
addHandler(element, event, handler, delegationFn, true);
},
off(element, originalTypeEvent, handler, delegationFn) {
if (typeof originalTypeEvent !== 'string' || !element) {
return;
}
const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn);
const inNamespace = typeEvent !== originalTypeEvent;
const events = getEvent(element);
const isNamespace = originalTypeEvent.startsWith('.');
if (typeof originalHandler !== 'undefined') {
// Simplest case: handler is passed, remove that listener ONLY.
if (!events || !events[typeEvent]) {
return;
}
removeHandler(element, events, typeEvent, originalHandler, delegation ? handler : null);
return;
}
if (isNamespace) {
Object.keys(events).forEach(elementEvent => {
removeNamespacedHandlers(element, events, elementEvent, originalTypeEvent.slice(1));
});
}
const storeElementEvent = events[typeEvent] || {};
Object.keys(storeElementEvent).forEach(keyHandlers => {
const handlerKey = keyHandlers.replace(stripUidRegex, '');
if (!inNamespace || originalTypeEvent.includes(handlerKey)) {
const event = storeElementEvent[keyHandlers];
removeHandler(element, events, typeEvent, event.originalHandler, event.delegationSelector);
}
});
},
trigger(element, event, args) {
if (typeof event !== 'string' || !element) {
return null;
}
const $ = getjQuery();
const typeEvent = getTypeEvent(event);
const inNamespace = event !== typeEvent;
const isNative = nativeEvents.has(typeEvent);
let jQueryEvent;
let bubbles = true;
let nativeDispatch = true;
let defaultPrevented = false;
let evt = null;
if (inNamespace && $) {
jQueryEvent = $.Event(event, args);
$(element).trigger(jQueryEvent);
bubbles = !jQueryEvent.isPropagationStopped();
nativeDispatch = !jQueryEvent.isImmediatePropagationStopped();
defaultPrevented = jQueryEvent.isDefaultPrevented();
}
if (isNative) {
evt = document.createEvent('HTMLEvents');
evt.initEvent(typeEvent, bubbles, true);
} else {
evt = new CustomEvent(event, {
bubbles,
cancelable: true
});
} // merge custom information in our event
if (typeof args !== 'undefined') {
Object.keys(args).forEach(key => {
Object.defineProperty(evt, key, {
get() {
return args[key];
}
});
});
}
if (defaultPrevented) {
evt.preventDefault();
}
if (nativeDispatch) {
element.dispatchEvent(evt);
}
if (evt.defaultPrevented && typeof jQueryEvent !== 'undefined') {
jQueryEvent.preventDefault();
}
return evt;
}
};
return EventHandler;
})));
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