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123 lines
4.0 KiB
123 lines
4.0 KiB
(function (factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module
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define(['jquery'], factory);
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} else if (typeof exports === 'object') {
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// Node/CommonJS
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module.exports = factory(require('jquery'));
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} else {
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// Browser globals
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factory(jQuery);
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}
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})(function ($) {
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var DropdownSubmenu =
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/*#__PURE__*/
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function () {
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function DropdownSubmenu(element) {
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this.element = element.parentElement;
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this.menuElement = this.element.querySelector('.dropdown-menu');
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this.init();
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}
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var _proto = DropdownSubmenu.prototype;
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_proto.init = function init() {
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var _this = this;
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$(this.element).off('keydown.bs.dropdown.data-api');
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this.menuElement.addEventListener('keydown', this.itemKeydown.bind(this));
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var dropdownItemNodeList = this.menuElement.querySelectorAll('.dropdown-item');
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Array.from(dropdownItemNodeList).forEach(function (element) {
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element.addEventListener('keydown', _this.handleKeydownDropdownItem.bind(_this));
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});
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$(this.menuElement).on('keydown', '.dropdown-submenu > .dropdown-item', this.handleKeydownSubmenuDropdownItem.bind(this));
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$(this.menuElement).on('click', '.dropdown-submenu > .dropdown-item', this.handleClickSubmenuDropdownItem.bind(this));
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$(this.element).on('hidden.bs.dropdown', function () {
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_this.close(_this.menuElement);
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});
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};
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_proto.handleKeydownDropdownItem = function handleKeydownDropdownItem(event) {
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// 27: Esc
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if (event.keyCode !== 27) {
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return;
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}
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event.target.closest('.dropdown-menu').previousElementSibling.focus();
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event.target.closest('.dropdown-menu').classList.remove('show');
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};
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_proto.handleKeydownSubmenuDropdownItem = function handleKeydownSubmenuDropdownItem(event) {
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// 32: Spacebar
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if (event.keyCode !== 32) {
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return;
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} // NOTE: Off vertical scrolling
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event.preventDefault();
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this.toggle(event.target);
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};
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_proto.handleClickSubmenuDropdownItem = function handleClickSubmenuDropdownItem(event) {
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event.stopPropagation();
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this.toggle(event.target);
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};
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_proto.itemKeydown = function itemKeydown(event) {
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// 38: Arrow up, 40: Arrow down
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if (![38, 40].includes(event.keyCode)) {
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return;
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} // NOTE: Off vertical scrolling
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event.preventDefault();
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event.stopPropagation();
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var itemNodeList = this.element.querySelectorAll('.show > .dropdown-item:not(:disabled):not(.disabled), .show > .dropdown > .dropdown-item');
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var index = Array.from(itemNodeList).indexOf(event.target);
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if (event.keyCode === 38 && index !== 0) {
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index--;
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} else if (event.keyCode === 40 && index !== itemNodeList.length - 1) {
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index++;
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} else {
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return;
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}
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itemNodeList[index].focus();
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};
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_proto.toggle = function toggle(element) {
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var dropdownElement = element.closest('.dropdown');
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var parentMenuElement = dropdownElement.closest('.dropdown-menu');
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var menuElement = dropdownElement.querySelector('.dropdown-menu');
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var isOpen = menuElement.classList.contains('show');
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this.close(parentMenuElement);
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menuElement.classList.toggle('show', !isOpen);
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};
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_proto.close = function close(menuElement) {
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var menuNodeList = menuElement.querySelectorAll('.dropdown-menu.show');
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Array.from(menuNodeList).forEach(function (element) {
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element.classList.remove('show');
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});
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};
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return DropdownSubmenu;
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}(); // For AMD/Node/CommonJS used elements (optional)
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// http://learn.jquery.com/jquery-ui/environments/amd/
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$.fn.submenupicker = function (elements) {
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var $elements = this instanceof $ ? this : $(elements);
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return $elements.each(function () {
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var data = $.data(this, 'bs.submenu');
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if (!data) {
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data = new DropdownSubmenu(this);
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$.data(this, 'bs.submenu', data);
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}
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});
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};
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return DropdownSubmenu;
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});
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