in Hands-on lab/lab-files/BigDataTravel/BigDataTravel/Scripts/bootstrap.bundle.js [4220:4631]
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();
} // Getters
var _proto = Dropdown.prototype;
// Public
_proto.toggle = function toggle() {
if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED)) {
return;
}
var isActive = $__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2);
Dropdown._clearMenus();
if (isActive) {
return;
}
this.show(true);
};
_proto.show = function show(usePopper) {
if (usePopper === void 0) {
usePopper = false;
}
if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED) || $__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2)) {
return;
}
var relatedTarget = {
relatedTarget: this._element
};
var showEvent = $__default['default'].Event(EVENT_SHOW$1, relatedTarget);
var parent = Dropdown._getParentFromElement(this._element);
$__default['default'](parent).trigger(showEvent);
if (showEvent.isDefaultPrevented()) {
return;
} // Totally disable Popper for Dropdowns in Navbar
if (!this._inNavbar && usePopper) {
/**
* Check for Popper dependency
* Popper - https://popper.js.org
*/
if (typeof Popper === 'undefined') {
throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)');
}
var referenceElement = this._element;
if (this._config.reference === 'parent') {
referenceElement = parent;
} else if (Util.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') {
$__default['default'](parent).addClass(CLASS_NAME_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 && $__default['default'](parent).closest(SELECTOR_NAVBAR_NAV).length === 0) {
$__default['default'](document.body).children().on('mouseover', null, $__default['default'].noop);
}
this._element.focus();
this._element.setAttribute('aria-expanded', true);
$__default['default'](this._menu).toggleClass(CLASS_NAME_SHOW$2);
$__default['default'](parent).toggleClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_SHOWN$1, relatedTarget));
};
_proto.hide = function hide() {
if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED) || !$__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2)) {
return;
}
var relatedTarget = {
relatedTarget: this._element
};
var hideEvent = $__default['default'].Event(EVENT_HIDE$1, relatedTarget);
var parent = Dropdown._getParentFromElement(this._element);
$__default['default'](parent).trigger(hideEvent);
if (hideEvent.isDefaultPrevented()) {
return;
}
if (this._popper) {
this._popper.destroy();
}
$__default['default'](this._menu).toggleClass(CLASS_NAME_SHOW$2);
$__default['default'](parent).toggleClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_HIDDEN$1, relatedTarget));
};
_proto.dispose = function dispose() {
$__default['default'].removeData(this._element, DATA_KEY$4);
$__default['default'](this._element).off(EVENT_KEY$4);
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;
$__default['default'](this._element).on(EVENT_CLICK, function (event) {
event.preventDefault();
event.stopPropagation();
_this.toggle();
});
};
_proto._getConfig = function _getConfig(config) {
config = _extends({}, this.constructor.Default, $__default['default'](this._element).data(), config);
Util.typeCheckConfig(NAME$4, config, this.constructor.DefaultType);
return config;
};
_proto._getMenuElement = function _getMenuElement() {
if (!this._menu) {
var parent = Dropdown._getParentFromElement(this._element);
if (parent) {
this._menu = parent.querySelector(SELECTOR_MENU);
}
}
return this._menu;
};
_proto._getPlacement = function _getPlacement() {
var $parentDropdown = $__default['default'](this._element.parentNode);
var placement = PLACEMENT_BOTTOM; // Handle dropup
if ($parentDropdown.hasClass(CLASS_NAME_DROPUP)) {
placement = $__default['default'](this._menu).hasClass(CLASS_NAME_MENURIGHT) ? PLACEMENT_TOPEND : PLACEMENT_TOP;
} else if ($parentDropdown.hasClass(CLASS_NAME_DROPRIGHT)) {
placement = PLACEMENT_RIGHT;
} else if ($parentDropdown.hasClass(CLASS_NAME_DROPLEFT)) {
placement = PLACEMENT_LEFT;
} else if ($__default['default'](this._menu).hasClass(CLASS_NAME_MENURIGHT)) {
placement = PLACEMENT_BOTTOMEND;
}
return placement;
};
_proto._detectNavbar = function _detectNavbar() {
return $__default['default'](this._element).closest('.navbar').length > 0;
};
_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 if we have a static display
if (this._config.display === 'static') {
popperConfig.modifiers.applyStyle = {
enabled: false
};
}
return _extends({}, popperConfig, this._config.popperConfig);
} // Static
;
Dropdown._jQueryInterface = function _jQueryInterface(config) {
return this.each(function () {
var data = $__default['default'](this).data(DATA_KEY$4);
var _config = typeof config === 'object' ? config : null;
if (!data) {
data = new Dropdown(this, _config);
$__default['default'](this).data(DATA_KEY$4, data);
}
if (typeof config === 'string') {
if (typeof data[config] === 'undefined') {
throw new TypeError("No method named \"" + config + "\"");
}
data[config]();
}
});
};
Dropdown._clearMenus = function _clearMenus(event) {
if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
return;
}
var toggles = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE$2));
for (var i = 0, len = toggles.length; i < len; i++) {
var parent = Dropdown._getParentFromElement(toggles[i]);
var context = $__default['default'](toggles[i]).data(DATA_KEY$4);
var relatedTarget = {
relatedTarget: toggles[i]
};
if (event && event.type === 'click') {
relatedTarget.clickEvent = event;
}
if (!context) {
continue;
}
var dropdownMenu = context._menu;
if (!$__default['default'](parent).hasClass(CLASS_NAME_SHOW$2)) {
continue;
}
if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $__default['default'].contains(parent, event.target)) {
continue;
}
var hideEvent = $__default['default'].Event(EVENT_HIDE$1, relatedTarget);
$__default['default'](parent).trigger(hideEvent);
if (hideEvent.isDefaultPrevented()) {
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) {
$__default['default'](document.body).children().off('mouseover', null, $__default['default'].noop);
}
toggles[i].setAttribute('aria-expanded', 'false');
if (context._popper) {
context._popper.destroy();
}
$__default['default'](dropdownMenu).removeClass(CLASS_NAME_SHOW$2);
$__default['default'](parent).removeClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_HIDDEN$1, relatedTarget));
}
};
Dropdown._getParentFromElement = function _getParentFromElement(element) {
var parent;
var selector = Util.getSelectorFromElement(element);
if (selector) {
parent = document.querySelector(selector);
}
return parent || element.parentNode;
} // eslint-disable-next-line complexity
;
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 || $__default['default'](event.target).closest(SELECTOR_MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
return;
}
if (this.disabled || $__default['default'](this).hasClass(CLASS_NAME_DISABLED)) {
return;
}
var parent = Dropdown._getParentFromElement(this);
var isActive = $__default['default'](parent).hasClass(CLASS_NAME_SHOW$2);
if (!isActive && event.which === ESCAPE_KEYCODE) {
return;
}
event.preventDefault();
event.stopPropagation();
if (!isActive || event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE) {
if (event.which === ESCAPE_KEYCODE) {
$__default['default'](parent.querySelector(SELECTOR_DATA_TOGGLE$2)).trigger('focus');
}
$__default['default'](this).trigger('click');
return;
}
var items = [].slice.call(parent.querySelectorAll(SELECTOR_VISIBLE_ITEMS)).filter(function (item) {
return $__default['default'](item).is(':visible');
});
if (items.length === 0) {
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();
};
_createClass(Dropdown, null, [{
key: "VERSION",
get: function get() {
return VERSION$4;
}
}, {
key: "Default",
get: function get() {
return Default$2;
}
}, {
key: "DefaultType",
get: function get() {
return DefaultType$2;
}
}]);
return Dropdown;
}();