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Bootstrap/js/dist/dropdown.js

672 lines
21 KiB
JavaScript

/*!
* Bootstrap dropdown.js v4.3.1 (https://getbootstrap.com/)
* Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('./dom/data.js'), require('./dom/event-handler.js'), require('./dom/manipulator.js'), require('popper.js'), require('./dom/selector-engine.js')) :
typeof define === 'function' && define.amd ? define(['./dom/data.js', './dom/event-handler.js', './dom/manipulator.js', 'popper.js', './dom/selector-engine.js'], factory) :
(global = global || self, global.Dropdown = factory(global.Data, global.EventHandler, global.Manipulator, global.Popper, global.SelectorEngine));
}(this, function (Data, EventHandler, Manipulator, Popper, SelectorEngine) { 'use strict';
Data = Data && Data.hasOwnProperty('default') ? Data['default'] : Data;
EventHandler = EventHandler && EventHandler.hasOwnProperty('default') ? EventHandler['default'] : EventHandler;
Manipulator = Manipulator && Manipulator.hasOwnProperty('default') ? Manipulator['default'] : Manipulator;
Popper = Popper && Popper.hasOwnProperty('default') ? Popper['default'] : Popper;
SelectorEngine = SelectorEngine && SelectorEngine.hasOwnProperty('default') ? SelectorEngine['default'] : SelectorEngine;
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function _objectSpread(target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i] != null ? arguments[i] : {};
var ownKeys = Object.keys(source);
if (typeof Object.getOwnPropertySymbols === 'function') {
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
}));
}
ownKeys.forEach(function (key) {
_defineProperty(target, key, source[key]);
});
}
return target;
}
/**
* --------------------------------------------------------------------------
* Bootstrap (v4.3.1): util/index.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
var _window = window,
jQuery = _window.jQuery; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
var toType = function toType(obj) {
return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
};
var getSelectorFromElement = function getSelectorFromElement(element) {
var selector = element.getAttribute('data-target');
if (!selector || selector === '#') {
var hrefAttr = element.getAttribute('href');
selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
}
try {
return document.querySelector(selector) ? selector : null;
} catch (error) {
return null;
}
};
var isElement = function isElement(obj) {
return (obj[0] || obj).nodeType;
};
var typeCheckConfig = function typeCheckConfig(componentName, config, configTypes) {
Object.keys(configTypes).forEach(function (property) {
var expectedTypes = configTypes[property];
var value = config[property];
var valueType = value && isElement(value) ? 'element' : toType(value);
if (!new RegExp(expectedTypes).test(valueType)) {
throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
}
});
};
var makeArray = function makeArray(nodeList) {
if (!nodeList) {
return [];
}
return [].slice.call(nodeList);
};
var noop = function noop() {
return function () {};
};
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
var NAME = 'dropdown';
var VERSION = '4.3.1';
var DATA_KEY = 'bs.dropdown';
var EVENT_KEY = "." + DATA_KEY;
var DATA_API_KEY = '.data-api';
var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
var Event = {
HIDE: "hide" + EVENT_KEY,
HIDDEN: "hidden" + EVENT_KEY,
SHOW: "show" + EVENT_KEY,
SHOWN: "shown" + EVENT_KEY,
CLICK: "click" + EVENT_KEY,
CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
KEYDOWN_DATA_API: "keydown" + EVENT_KEY + DATA_API_KEY,
KEYUP_DATA_API: "keyup" + EVENT_KEY + DATA_API_KEY
};
var ClassName = {
DISABLED: 'disabled',
SHOW: 'show',
DROPUP: 'dropup',
DROPRIGHT: 'dropright',
DROPLEFT: 'dropleft',
MENURIGHT: 'dropdown-menu-right',
POSITION_STATIC: 'position-static'
};
var Selector = {
DATA_TOGGLE: '[data-toggle="dropdown"]',
FORM_CHILD: '.dropdown form',
MENU: '.dropdown-menu',
NAVBAR_NAV: '.navbar-nav',
VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
};
var AttachmentMap = {
TOP: 'top-start',
TOPEND: 'top-end',
BOTTOM: 'bottom-start',
BOTTOMEND: 'bottom-end',
RIGHT: 'right-start',
RIGHTEND: 'right-end',
LEFT: 'left-start',
LEFTEND: 'left-end'
};
var Default = {
offset: 0,
flip: true,
boundary: 'scrollParent',
reference: 'toggle',
display: 'dynamic'
};
var DefaultType = {
offset: '(number|string|function)',
flip: 'boolean',
boundary: '(string|element)',
reference: '(string|element)',
display: 'string'
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
};
var Dropdown =
/*#__PURE__*/
function () {
function Dropdown(element, config) {
this._element = element;
this._popper = null;
this._config = this._getConfig(config);
this._menu = this._getMenuElement();
this._inNavbar = this._detectNavbar();
this._addEventListeners();
Data.setData(element, DATA_KEY, this);
} // Getters
var _proto = Dropdown.prototype;
// Public
_proto.toggle = function toggle() {
if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED)) {
return;
}
var parent = Dropdown._getParentFromElement(this._element);
var isActive = this._menu.classList.contains(ClassName.SHOW);
Dropdown._clearMenus();
if (isActive) {
return;
}
var relatedTarget = {
relatedTarget: this._element
};
var showEvent = EventHandler.trigger(parent, Event.SHOW, relatedTarget);
if (showEvent.defaultPrevented) {
return;
} // Disable totally Popper.js for Dropdown in Navbar
if (!this._inNavbar) {
/**
* Check for Popper dependency
* Popper - https://popper.js.org
*/
if (typeof Popper === 'undefined') {
throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org)');
}
var referenceElement = this._element;
if (this._config.reference === 'parent') {
referenceElement = parent;
} else if (isElement(this._config.reference)) {
referenceElement = this._config.reference; // Check if it's jQuery element
if (typeof this._config.reference.jquery !== 'undefined') {
referenceElement = this._config.reference[0];
}
} // If boundary is not `scrollParent`, then set position to `static`
// to allow the menu to "escape" the scroll parent's boundaries
// https://github.com/twbs/bootstrap/issues/24251
if (this._config.boundary !== 'scrollParent') {
parent.classList.add(ClassName.POSITION_STATIC);
}
this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
} // If this is a touch-enabled device we add extra
// empty mouseover listeners to the body's immediate children;
// only needed because of broken event delegation on iOS
// https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
if ('ontouchstart' in document.documentElement && !makeArray(SelectorEngine.closest(parent, Selector.NAVBAR_NAV)).length) {
makeArray(document.body.children).forEach(function (elem) {
return EventHandler.on(elem, 'mouseover', null, noop());
});
}
this._element.focus();
this._element.setAttribute('aria-expanded', true);
Manipulator.toggleClass(this._menu, ClassName.SHOW);
Manipulator.toggleClass(parent, ClassName.SHOW);
EventHandler.trigger(parent, Event.SHOWN, relatedTarget);
};
_proto.show = function show() {
if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED) || this._menu.classList.contains(ClassName.SHOW)) {
return;
}
var parent = Dropdown._getParentFromElement(this._element);
var relatedTarget = {
relatedTarget: this._element
};
var showEvent = EventHandler.trigger(parent, Event.SHOW, relatedTarget);
if (showEvent.defaultPrevented) {
return;
}
Manipulator.toggleClass(this._menu, ClassName.SHOW);
Manipulator.toggleClass(parent, ClassName.SHOW);
EventHandler.trigger(parent, Event.SHOWN, relatedTarget);
};
_proto.hide = function hide() {
if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED) || !this._menu.classList.contains(ClassName.SHOW)) {
return;
}
var parent = Dropdown._getParentFromElement(this._element);
var relatedTarget = {
relatedTarget: this._element
};
var hideEvent = EventHandler.trigger(parent, Event.HIDE, relatedTarget);
if (hideEvent.defaultPrevented) {
return;
}
Manipulator.toggleClass(this._menu, ClassName.SHOW);
Manipulator.toggleClass(parent, ClassName.SHOW);
EventHandler.trigger(parent, Event.HIDDEN, relatedTarget);
};
_proto.dispose = function dispose() {
Data.removeData(this._element, DATA_KEY);
EventHandler.off(this._element, EVENT_KEY);
this._element = null;
this._menu = null;
if (this._popper !== null) {
this._popper.destroy();
this._popper = null;
}
};
_proto.update = function update() {
this._inNavbar = this._detectNavbar();
if (this._popper !== null) {
this._popper.scheduleUpdate();
}
} // Private
;
_proto._addEventListeners = function _addEventListeners() {
var _this = this;
EventHandler.on(this._element, Event.CLICK, function (event) {
event.preventDefault();
event.stopPropagation();
_this.toggle();
});
};
_proto._getConfig = function _getConfig(config) {
config = _objectSpread({}, this.constructor.Default, Manipulator.getDataAttributes(this._element), config);
typeCheckConfig(NAME, config, this.constructor.DefaultType);
return config;
};
_proto._getMenuElement = function _getMenuElement() {
if (!this._menu) {
var parent = Dropdown._getParentFromElement(this._element);
if (parent) {
this._menu = SelectorEngine.findOne(Selector.MENU, parent);
}
}
return this._menu;
};
_proto._getPlacement = function _getPlacement() {
var parentDropdown = this._element.parentNode;
var placement = AttachmentMap.BOTTOM; // Handle dropup
if (parentDropdown.classList.contains(ClassName.DROPUP)) {
placement = AttachmentMap.TOP;
if (this._menu.classList.contains(ClassName.MENURIGHT)) {
placement = AttachmentMap.TOPEND;
}
} else if (parentDropdown.classList.contains(ClassName.DROPRIGHT)) {
placement = AttachmentMap.RIGHT;
} else if (parentDropdown.classList.contains(ClassName.DROPLEFT)) {
placement = AttachmentMap.LEFT;
} else if (this._menu.classList.contains(ClassName.MENURIGHT)) {
placement = AttachmentMap.BOTTOMEND;
}
return placement;
};
_proto._detectNavbar = function _detectNavbar() {
return Boolean(SelectorEngine.closest(this._element, '.navbar'));
};
_proto._getOffset = function _getOffset() {
var _this2 = this;
var offset = {};
if (typeof this._config.offset === 'function') {
offset.fn = function (data) {
data.offsets = _objectSpread({}, data.offsets, _this2._config.offset(data.offsets, _this2._element) || {});
return data;
};
} else {
offset.offset = this._config.offset;
}
return offset;
};
_proto._getPopperConfig = function _getPopperConfig() {
var popperConfig = {
placement: this._getPlacement(),
modifiers: {
offset: this._getOffset(),
flip: {
enabled: this._config.flip
},
preventOverflow: {
boundariesElement: this._config.boundary
}
} // Disable Popper.js if we have a static display
};
if (this._config.display === 'static') {
popperConfig.modifiers.applyStyle = {
enabled: false
};
}
return popperConfig;
} // Static
;
Dropdown._dropdownInterface = function _dropdownInterface(element, config) {
var data = Data.getData(element, DATA_KEY);
var _config = typeof config === 'object' ? config : null;
if (!data) {
data = new Dropdown(element, _config);
}
if (typeof config === 'string') {
if (typeof data[config] === 'undefined') {
throw new TypeError("No method named \"" + config + "\"");
}
data[config]();
}
};
Dropdown._jQueryInterface = function _jQueryInterface(config) {
return this.each(function () {
Dropdown._dropdownInterface(this, config);
});
};
Dropdown._clearMenus = function _clearMenus(event) {
if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
return;
}
var toggles = makeArray(SelectorEngine.find(Selector.DATA_TOGGLE));
for (var i = 0, len = toggles.length; i < len; i++) {
var parent = Dropdown._getParentFromElement(toggles[i]);
var context = Data.getData(toggles[i], DATA_KEY);
var relatedTarget = {
relatedTarget: toggles[i]
};
if (event && event.type === 'click') {
relatedTarget.clickEvent = event;
}
if (!context) {
continue;
}
var dropdownMenu = context._menu;
if (!parent.classList.contains(ClassName.SHOW)) {
continue;
}
if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && parent.contains(event.target)) {
continue;
}
var hideEvent = EventHandler.trigger(parent, Event.HIDE, relatedTarget);
if (hideEvent.defaultPrevented) {
continue;
} // If this is a touch-enabled device we remove the extra
// empty mouseover listeners we added for iOS support
if ('ontouchstart' in document.documentElement) {
makeArray(document.body.children).forEach(function (elem) {
return EventHandler.off(elem, 'mouseover', null, noop());
});
}
toggles[i].setAttribute('aria-expanded', 'false');
dropdownMenu.classList.remove(ClassName.SHOW);
parent.classList.remove(ClassName.SHOW);
EventHandler.trigger(parent, Event.HIDDEN, relatedTarget);
}
};
Dropdown._getParentFromElement = function _getParentFromElement(element) {
var parent;
var selector = getSelectorFromElement(element);
if (selector) {
parent = SelectorEngine.findOne(selector);
}
return parent || element.parentNode;
};
Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
// If not input/textarea:
// - And not a key in REGEXP_KEYDOWN => not a dropdown command
// If input/textarea:
// - If space key => not a dropdown command
// - If key is other than escape
// - If key is not up or down => not a dropdown command
// - If trigger inside the menu => not a dropdown command
if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || SelectorEngine.closest(event.target, Selector.MENU)) : !REGEXP_KEYDOWN.test(event.which)) {
return;
}
event.preventDefault();
event.stopPropagation();
if (this.disabled || this.classList.contains(ClassName.DISABLED)) {
return;
}
var parent = Dropdown._getParentFromElement(this);
var isActive = parent.classList.contains(ClassName.SHOW);
if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
if (event.which === ESCAPE_KEYCODE) {
EventHandler.trigger(SelectorEngine.findOne(Selector.DATA_TOGGLE, parent), 'focus');
}
Dropdown._clearMenus();
return;
}
var items = makeArray(SelectorEngine.find(Selector.VISIBLE_ITEMS, parent));
if (!items.length) {
return;
}
var index = items.indexOf(event.target);
if (event.which === ARROW_UP_KEYCODE && index > 0) {
// Up
index--;
}
if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
// Down
index++;
}
if (index < 0) {
index = 0;
}
items[index].focus();
};
Dropdown._getInstance = function _getInstance(element) {
return Data.getData(element, DATA_KEY);
};
_createClass(Dropdown, null, [{
key: "VERSION",
get: function get() {
return VERSION;
}
}, {
key: "Default",
get: function get() {
return Default;
}
}, {
key: "DefaultType",
get: function get() {
return DefaultType;
}
}]);
return Dropdown;
}();
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
EventHandler.on(document, Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler);
EventHandler.on(document, Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler);
EventHandler.on(document, Event.CLICK_DATA_API, Dropdown._clearMenus);
EventHandler.on(document, Event.KEYUP_DATA_API, Dropdown._clearMenus);
EventHandler.on(document, Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
event.preventDefault();
event.stopPropagation();
Dropdown._dropdownInterface(this, 'toggle');
});
EventHandler.on(document, Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
return e.stopPropagation();
});
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
* add .dropdown to jQuery only if jQuery is present
*/
if (typeof jQuery !== 'undefined') {
var JQUERY_NO_CONFLICT = jQuery.fn[NAME];
jQuery.fn[NAME] = Dropdown._jQueryInterface;
jQuery.fn[NAME].Constructor = Dropdown;
jQuery.fn[NAME].noConflict = function () {
jQuery.fn[NAME] = JQUERY_NO_CONFLICT;
return Dropdown._jQueryInterface;
};
}
return Dropdown;
}));
//# sourceMappingURL=dropdown.js.map