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mirror of https://github.com/twbs/bootstrap.git synced 2024-11-29 11:24:18 +01:00
Bootstrap/js/dist/dropdown.js
2020-09-29 18:33:00 +03:00

611 lines
21 KiB
JavaScript

/*!
* Bootstrap dropdown.js v5.0.0-alpha2 (https://getbootstrap.com/)
* Copyright 2011-2020 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(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 = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Dropdown = factory(global.Data, global.EventHandler, global.Manipulator, global.Popper, global.SelectorEngine));
}(this, (function (Data, EventHandler, Manipulator, Popper, SelectorEngine) { 'use strict';
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
var Data__default = /*#__PURE__*/_interopDefaultLegacy(Data);
var EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
var Manipulator__default = /*#__PURE__*/_interopDefaultLegacy(Manipulator);
var Popper__default = /*#__PURE__*/_interopDefaultLegacy(Popper);
var SelectorEngine__default = /*#__PURE__*/_interopDefaultLegacy(SelectorEngine);
/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.0-alpha2): util/index.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
var toType = function toType(obj) {
if (obj === null || obj === undefined) {
return "" + obj;
}
return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
};
var getSelector = function getSelector(element) {
var selector = element.getAttribute('data-target');
if (!selector || selector === '#') {
var hrefAttr = element.getAttribute('href');
selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null;
}
return selector;
};
var getElementFromSelector = function getElementFromSelector(element) {
var selector = getSelector(element);
return selector ? document.querySelector(selector) : 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 isVisible = function isVisible(element) {
if (!element) {
return false;
}
if (element.style && element.parentNode && element.parentNode.style) {
var elementStyle = getComputedStyle(element);
var parentNodeStyle = getComputedStyle(element.parentNode);
return elementStyle.display !== 'none' && parentNodeStyle.display !== 'none' && elementStyle.visibility !== 'hidden';
}
return false;
};
var noop = function noop() {
return function () {};
};
var getjQuery = function getjQuery() {
var _window = window,
jQuery = _window.jQuery;
if (jQuery && !document.body.hasAttribute('data-no-jquery')) {
return jQuery;
}
return null;
};
function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
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; }
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
var NAME = 'dropdown';
var VERSION = '5.0.0-alpha2';
var DATA_KEY = 'bs.dropdown';
var EVENT_KEY = "." + DATA_KEY;
var DATA_API_KEY = '.data-api';
var ESCAPE_KEY = 'Escape';
var SPACE_KEY = 'Space';
var TAB_KEY = 'Tab';
var ARROW_UP_KEY = 'ArrowUp';
var ARROW_DOWN_KEY = 'ArrowDown';
var RIGHT_MOUSE_BUTTON = 2; // MouseEvent.button value for the secondary button, usually the right button
var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEY + "|" + ARROW_DOWN_KEY + "|" + ESCAPE_KEY);
var EVENT_HIDE = "hide" + EVENT_KEY;
var EVENT_HIDDEN = "hidden" + EVENT_KEY;
var EVENT_SHOW = "show" + EVENT_KEY;
var EVENT_SHOWN = "shown" + EVENT_KEY;
var EVENT_CLICK = "click" + EVENT_KEY;
var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
var EVENT_KEYDOWN_DATA_API = "keydown" + EVENT_KEY + DATA_API_KEY;
var EVENT_KEYUP_DATA_API = "keyup" + EVENT_KEY + DATA_API_KEY;
var CLASS_NAME_DISABLED = 'disabled';
var CLASS_NAME_SHOW = 'show';
var CLASS_NAME_DROPUP = 'dropup';
var CLASS_NAME_DROPRIGHT = 'dropright';
var CLASS_NAME_DROPLEFT = 'dropleft';
var CLASS_NAME_MENURIGHT = 'dropdown-menu-right';
var CLASS_NAME_NAVBAR = 'navbar';
var CLASS_NAME_POSITION_STATIC = 'position-static';
var SELECTOR_DATA_TOGGLE = '[data-toggle="dropdown"]';
var SELECTOR_FORM_CHILD = '.dropdown form';
var SELECTOR_MENU = '.dropdown-menu';
var SELECTOR_NAVBAR_NAV = '.navbar-nav';
var SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)';
var PLACEMENT_TOP = 'top-start';
var PLACEMENT_TOPEND = 'top-end';
var PLACEMENT_BOTTOM = 'bottom-start';
var PLACEMENT_BOTTOMEND = 'bottom-end';
var PLACEMENT_RIGHT = 'right-start';
var PLACEMENT_LEFT = 'left-start';
var Default = {
offset: 0,
flip: true,
boundary: 'scrollParent',
reference: 'toggle',
display: 'dynamic',
popperConfig: null
};
var DefaultType = {
offset: '(number|string|function)',
flip: 'boolean',
boundary: '(string|element)',
reference: '(string|element)',
display: 'string',
popperConfig: '(null|object)'
};
/**
* ------------------------------------------------------------------------
* 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__default['default'].setData(element, DATA_KEY, this);
} // Getters
var _proto = Dropdown.prototype;
// Public
_proto.toggle = function toggle() {
if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED)) {
return;
}
var isActive = this._element.classList.contains(CLASS_NAME_SHOW);
Dropdown.clearMenus();
if (isActive) {
return;
}
this.show();
};
_proto.show = function show() {
if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED) || this._menu.classList.contains(CLASS_NAME_SHOW)) {
return;
}
var parent = Dropdown.getParentFromElement(this._element);
var relatedTarget = {
relatedTarget: this._element
};
var showEvent = EventHandler__default['default'].trigger(this._element, EVENT_SHOW, relatedTarget);
if (showEvent.defaultPrevented) {
return;
} // Disable totally Popper.js for Dropdown in Navbar
if (!this._inNavbar) {
if (typeof Popper__default['default'] === '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(CLASS_NAME_POSITION_STATIC);
}
this._popper = new Popper__default['default'](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 && !parent.closest(SELECTOR_NAVBAR_NAV)) {
var _ref;
(_ref = []).concat.apply(_ref, document.body.children).forEach(function (elem) {
return EventHandler__default['default'].on(elem, 'mouseover', null, noop());
});
}
this._element.focus();
this._element.setAttribute('aria-expanded', true);
Manipulator__default['default'].toggleClass(this._menu, CLASS_NAME_SHOW);
Manipulator__default['default'].toggleClass(this._element, CLASS_NAME_SHOW);
EventHandler__default['default'].trigger(parent, EVENT_SHOWN, relatedTarget);
};
_proto.hide = function hide() {
if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED) || !this._menu.classList.contains(CLASS_NAME_SHOW)) {
return;
}
var parent = Dropdown.getParentFromElement(this._element);
var relatedTarget = {
relatedTarget: this._element
};
var hideEvent = EventHandler__default['default'].trigger(parent, EVENT_HIDE, relatedTarget);
if (hideEvent.defaultPrevented) {
return;
}
if (this._popper) {
this._popper.destroy();
}
Manipulator__default['default'].toggleClass(this._menu, CLASS_NAME_SHOW);
Manipulator__default['default'].toggleClass(this._element, CLASS_NAME_SHOW);
EventHandler__default['default'].trigger(parent, EVENT_HIDDEN, relatedTarget);
};
_proto.dispose = function dispose() {
Data__default['default'].removeData(this._element, DATA_KEY);
EventHandler__default['default'].off(this._element, EVENT_KEY);
this._element = null;
this._menu = null;
if (this._popper) {
this._popper.destroy();
this._popper = null;
}
};
_proto.update = function update() {
this._inNavbar = this._detectNavbar();
if (this._popper) {
this._popper.scheduleUpdate();
}
} // Private
;
_proto._addEventListeners = function _addEventListeners() {
var _this = this;
EventHandler__default['default'].on(this._element, EVENT_CLICK, function (event) {
event.preventDefault();
event.stopPropagation();
_this.toggle();
});
};
_proto._getConfig = function _getConfig(config) {
config = _extends({}, this.constructor.Default, Manipulator__default['default'].getDataAttributes(this._element), config);
typeCheckConfig(NAME, config, this.constructor.DefaultType);
return config;
};
_proto._getMenuElement = function _getMenuElement() {
return SelectorEngine__default['default'].next(this._element, SELECTOR_MENU)[0];
};
_proto._getPlacement = function _getPlacement() {
var parentDropdown = this._element.parentNode;
var placement = PLACEMENT_BOTTOM; // Handle dropup
if (parentDropdown.classList.contains(CLASS_NAME_DROPUP)) {
placement = PLACEMENT_TOP;
if (this._menu.classList.contains(CLASS_NAME_MENURIGHT)) {
placement = PLACEMENT_TOPEND;
}
} else if (parentDropdown.classList.contains(CLASS_NAME_DROPRIGHT)) {
placement = PLACEMENT_RIGHT;
} else if (parentDropdown.classList.contains(CLASS_NAME_DROPLEFT)) {
placement = PLACEMENT_LEFT;
} else if (this._menu.classList.contains(CLASS_NAME_MENURIGHT)) {
placement = PLACEMENT_BOTTOMEND;
}
return placement;
};
_proto._detectNavbar = function _detectNavbar() {
return Boolean(this._element.closest("." + CLASS_NAME_NAVBAR));
};
_proto._getOffset = function _getOffset() {
var _this2 = this;
var offset = {};
if (typeof this._config.offset === 'function') {
offset.fn = function (data) {
data.offsets = _extends({}, 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 _extends({}, popperConfig, this._config.popperConfig);
} // Static
;
Dropdown.dropdownInterface = function dropdownInterface(element, config) {
var data = Data__default['default'].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.button === RIGHT_MOUSE_BUTTON || event.type === 'keyup' && event.key !== TAB_KEY)) {
return;
}
var toggles = SelectorEngine__default['default'].find(SELECTOR_DATA_TOGGLE);
for (var i = 0, len = toggles.length; i < len; i++) {
var parent = Dropdown.getParentFromElement(toggles[i]);
var context = Data__default['default'].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 (!toggles[i].classList.contains(CLASS_NAME_SHOW)) {
continue;
}
if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.key === TAB_KEY) && dropdownMenu.contains(event.target)) {
continue;
}
var hideEvent = EventHandler__default['default'].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) {
var _ref2;
(_ref2 = []).concat.apply(_ref2, document.body.children).forEach(function (elem) {
return EventHandler__default['default'].off(elem, 'mouseover', null, noop());
});
}
toggles[i].setAttribute('aria-expanded', 'false');
if (context._popper) {
context._popper.destroy();
}
dropdownMenu.classList.remove(CLASS_NAME_SHOW);
toggles[i].classList.remove(CLASS_NAME_SHOW);
EventHandler__default['default'].trigger(parent, EVENT_HIDDEN, relatedTarget);
}
};
Dropdown.getParentFromElement = function getParentFromElement(element) {
return getElementFromSelector(element) || 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.key === SPACE_KEY || event.key !== ESCAPE_KEY && (event.key !== ARROW_DOWN_KEY && event.key !== ARROW_UP_KEY || event.target.closest(SELECTOR_MENU)) : !REGEXP_KEYDOWN.test(event.key)) {
return;
}
event.preventDefault();
event.stopPropagation();
if (this.disabled || this.classList.contains(CLASS_NAME_DISABLED)) {
return;
}
var parent = Dropdown.getParentFromElement(this);
var isActive = this.classList.contains(CLASS_NAME_SHOW);
if (event.key === ESCAPE_KEY) {
var button = this.matches(SELECTOR_DATA_TOGGLE) ? this : SelectorEngine__default['default'].prev(this, SELECTOR_DATA_TOGGLE)[0];
button.focus();
Dropdown.clearMenus();
return;
}
if (!isActive || event.key === SPACE_KEY) {
Dropdown.clearMenus();
return;
}
var items = SelectorEngine__default['default'].find(SELECTOR_VISIBLE_ITEMS, parent).filter(isVisible);
if (!items.length) {
return;
}
var index = items.indexOf(event.target);
if (event.key === ARROW_UP_KEY && index > 0) {
// Up
index--;
}
if (event.key === ARROW_DOWN_KEY && index < items.length - 1) {
// Down
index++;
} // index is -1 if the first keydown is an ArrowUp
index = index === -1 ? 0 : index;
items[index].focus();
};
Dropdown.getInstance = function getInstance(element) {
return Data__default['default'].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__default['default'].on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE, Dropdown.dataApiKeydownHandler);
EventHandler__default['default'].on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown.dataApiKeydownHandler);
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, Dropdown.clearMenus);
EventHandler__default['default'].on(document, EVENT_KEYUP_DATA_API, Dropdown.clearMenus);
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
event.preventDefault();
event.stopPropagation();
Dropdown.dropdownInterface(this, 'toggle');
});
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_FORM_CHILD, function (e) {
return e.stopPropagation();
});
var $ = getjQuery();
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
* add .dropdown to jQuery only if jQuery is present
*/
/* istanbul ignore if */
if ($) {
var JQUERY_NO_CONFLICT = $.fn[NAME];
$.fn[NAME] = Dropdown.jQueryInterface;
$.fn[NAME].Constructor = Dropdown;
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT;
return Dropdown.jQueryInterface;
};
}
return Dropdown;
})));
//# sourceMappingURL=dropdown.js.map