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+import Dropdown from '../../src/dropdown'
+import EventHandler from '../../src/dom/event-handler'
+import { noop } from '../../src/util/index'
+import { clearFixture, createEvent, getFixture, jQueryMock } from '../helpers/fixture'
+
+describe('Dropdown', () => {
+ let fixtureEl
+
+ beforeAll(() => {
+ fixtureEl = getFixture()
+ })
+
+ afterEach(() => {
+ clearFixture()
+ })
+
+ describe('VERSION', () => {
+ it('should return plugin version', () => {
+ expect(Dropdown.VERSION).toEqual(jasmine.any(String))
+ })
+ })
+
+ describe('Default', () => {
+ it('should return plugin default config', () => {
+ expect(Dropdown.Default).toEqual(jasmine.any(Object))
+ })
+ })
+
+ describe('DefaultType', () => {
+ it('should return plugin default type config', () => {
+ expect(Dropdown.DefaultType).toEqual(jasmine.any(Object))
+ })
+ })
+
+ describe('DATA_KEY', () => {
+ it('should return plugin data key', () => {
+ expect(Dropdown.DATA_KEY).toEqual('bs.dropdown')
+ })
+ })
+
+ describe('constructor', () => {
+ it('should take care of element either passed as a CSS selector or DOM element', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownBySelector = new Dropdown('[data-bs-toggle="dropdown"]')
+ const dropdownByElement = new Dropdown(btnDropdown)
+
+ expect(dropdownBySelector._element).toEqual(btnDropdown)
+ expect(dropdownByElement._element).toEqual(btnDropdown)
+ })
+
+ it('should work on invalid markup', () => {
+ return new Promise(resolve => {
+ // TODO: REMOVE in v6
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownElem = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(dropdownElem)
+
+ dropdownElem.addEventListener('shown.bs.dropdown', () => {
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should create offset modifier correctly when offset option is a function', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const getOffset = jasmine.createSpy('getOffset').and.returnValue([10, 20])
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown, {
+ offset: getOffset,
+ popperConfig: {
+ onFirstUpdate(state) {
+ expect(getOffset).toHaveBeenCalledWith({
+ popper: state.rects.popper,
+ reference: state.rects.reference,
+ placement: state.placement
+ }, btnDropdown)
+ resolve()
+ }
+ }
+ })
+ const offset = dropdown._getOffset()
+
+ expect(typeof offset).toEqual('function')
+
+ dropdown.show()
+ })
+ })
+
+ it('should create offset modifier correctly when offset option is a string into data attribute', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-offset="10,20">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ expect(dropdown._getOffset()).toEqual([10, 20])
+ })
+
+ it('should allow to pass config to Popper with `popperConfig`', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown, {
+ popperConfig: {
+ placement: 'left'
+ }
+ })
+
+ const popperConfig = dropdown._getPopperConfig()
+
+ expect(popperConfig.placement).toEqual('left')
+ })
+
+ it('should allow to pass config to Popper with `popperConfig` as a function', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-placement="right">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const getPopperConfig = jasmine.createSpy('getPopperConfig').and.returnValue({ placement: 'left' })
+ const dropdown = new Dropdown(btnDropdown, {
+ popperConfig: getPopperConfig
+ })
+
+ const popperConfig = dropdown._getPopperConfig()
+
+ expect(getPopperConfig).toHaveBeenCalled()
+ expect(popperConfig.placement).toEqual('left')
+ })
+ })
+
+ describe('toggle', () => {
+ it('should toggle a dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should destroy old popper references on toggle', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="first dropdown">',
+ ' <button class="firstBtn btn" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>',
+ '<div class="second dropdown">',
+ ' <button class="secondBtn btn" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown1 = fixtureEl.querySelector('.firstBtn')
+ const btnDropdown2 = fixtureEl.querySelector('.secondBtn')
+ const firstDropdownEl = fixtureEl.querySelector('.first')
+ const secondDropdownEl = fixtureEl.querySelector('.second')
+ const dropdown1 = new Dropdown(btnDropdown1)
+
+ firstDropdownEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown1).toHaveClass('show')
+ spyOn(dropdown1._popper, 'destroy')
+ btnDropdown2.click()
+ })
+
+ secondDropdownEl.addEventListener('shown.bs.dropdown', () => setTimeout(() => {
+ expect(dropdown1._popper.destroy).toHaveBeenCalled()
+ resolve()
+ }))
+
+ dropdown1.toggle()
+ })
+ })
+
+ it('should toggle a dropdown and add/remove event listener on mobile', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const defaultValueOnTouchStart = document.documentElement.ontouchstart
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ document.documentElement.ontouchstart = noop
+ const spy = spyOn(EventHandler, 'on')
+ const spyOff = spyOn(EventHandler, 'off')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ expect(spy).toHaveBeenCalledWith(jasmine.any(Object), 'mouseover', noop)
+
+ dropdown.toggle()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(btnDropdown).not.toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
+ expect(spyOff).toHaveBeenCalledWith(jasmine.any(Object), 'mouseover', noop)
+
+ document.documentElement.ontouchstart = defaultValueOnTouchStart
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropdown at the right', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu dropdown-menu-end">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a centered dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown-center">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropup', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropup">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropupEl = fixtureEl.querySelector('.dropup')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropupEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropup centered', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropup-center">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropupEl = fixtureEl.querySelector('.dropup-center')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropupEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropup at the right', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropup">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu dropdown-menu-end">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropupEl = fixtureEl.querySelector('.dropup')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropupEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropend', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropend">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropendEl = fixtureEl.querySelector('.dropend')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropendEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropstart', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropstart">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropstartEl = fixtureEl.querySelector('.dropstart')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropstartEl.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropdown with parent reference', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown, {
+ reference: 'parent'
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropdown with a dom node reference', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown, {
+ reference: fixtureEl
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropdown with a jquery object reference', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown, {
+ reference: { 0: fixtureEl, jquery: 'jQuery' }
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ })
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should toggle a dropdown with a valid virtual element reference', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle visually-hidden" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const virtualElement = {
+ nodeType: 1,
+ getBoundingClientRect() {
+ return {
+ width: 0,
+ height: 0,
+ top: 0,
+ right: 0,
+ bottom: 0,
+ left: 0
+ }
+ }
+ }
+
+ expect(() => new Dropdown(btnDropdown, {
+ reference: {}
+ })).toThrowError(TypeError, 'DROPDOWN: Option "reference" provided type "object" without a required "getBoundingClientRect" method.')
+
+ expect(() => new Dropdown(btnDropdown, {
+ reference: {
+ getBoundingClientRect: 'not-a-function'
+ }
+ })).toThrowError(TypeError, 'DROPDOWN: Option "reference" provided type "object" without a required "getBoundingClientRect" method.')
+
+ // use onFirstUpdate as Poppers internal update is executed async
+ const dropdown = new Dropdown(btnDropdown, {
+ reference: virtualElement,
+ popperConfig: {
+ onFirstUpdate() {
+ expect(spy).toHaveBeenCalled()
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ }
+ }
+ })
+
+ const spy = spyOn(virtualElement, 'getBoundingClientRect').and.callThrough()
+
+ dropdown.toggle()
+ })
+ })
+
+ it('should not toggle a dropdown if the element is disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.toggle()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ })
+ })
+ })
+
+ it('should not toggle a dropdown if the element contains .disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.toggle()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ })
+ })
+ })
+
+ it('should not toggle a dropdown if the menu is shown', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.toggle()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ })
+ })
+ })
+
+ it('should not toggle a dropdown if show event is prevented', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('show.bs.dropdown', event => {
+ event.preventDefault()
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.toggle()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ })
+ })
+ })
+ })
+
+ describe('show', () => {
+ it('should show a dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should not show a dropdown if the element is disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.show()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not show a dropdown if the element contains .disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.show()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not show a dropdown if the menu is shown', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.show()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not show a dropdown if show event is prevented', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('show.bs.dropdown', event => {
+ event.preventDefault()
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ reject(new Error('should not throw shown.bs.dropdown event'))
+ })
+
+ dropdown.show()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ }, 10)
+ })
+ })
+ })
+
+ describe('hide', () => {
+ it('should hide a dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="true">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(dropdownMenu).not.toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
+ resolve()
+ })
+
+ dropdown.hide()
+ })
+ })
+
+ it('should hide a dropdown and destroy popper', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ spyOn(dropdown._popper, 'destroy')
+ dropdown.hide()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(dropdown._popper.destroy).toHaveBeenCalled()
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should not hide a dropdown if the element is disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ reject(new Error('should not throw hidden.bs.dropdown event'))
+ })
+
+ dropdown.hide()
+
+ setTimeout(() => {
+ expect(dropdownMenu).toHaveClass('show')
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not hide a dropdown if the element contains .disabled', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ reject(new Error('should not throw hidden.bs.dropdown event'))
+ })
+
+ dropdown.hide()
+
+ setTimeout(() => {
+ expect(dropdownMenu).toHaveClass('show')
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not hide a dropdown if the menu is not shown', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ reject(new Error('should not throw hidden.bs.dropdown event'))
+ })
+
+ dropdown.hide()
+
+ setTimeout(() => {
+ expect().nothing()
+ resolve()
+ }, 10)
+ })
+ })
+
+ it('should not hide a dropdown if hide event is prevented', () => {
+ return new Promise((resolve, reject) => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu show">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('hide.bs.dropdown', event => {
+ event.preventDefault()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ reject(new Error('should not throw hidden.bs.dropdown event'))
+ })
+
+ dropdown.hide()
+
+ setTimeout(() => {
+ expect(dropdownMenu).toHaveClass('show')
+ resolve()
+ })
+ })
+ })
+
+ it('should remove event listener on touch-enabled device that was added in show method', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const defaultValueOnTouchStart = document.documentElement.ontouchstart
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ document.documentElement.ontouchstart = noop
+ const spy = spyOn(EventHandler, 'off')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ dropdown.hide()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(btnDropdown).not.toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
+ expect(spy).toHaveBeenCalled()
+
+ document.documentElement.ontouchstart = defaultValueOnTouchStart
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+ })
+
+ describe('dispose', () => {
+ it('should dispose dropdown', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ const dropdown = new Dropdown(btnDropdown)
+
+ expect(dropdown._popper).toBeNull()
+ expect(dropdown._menu).not.toBeNull()
+ expect(dropdown._element).not.toBeNull()
+ const spy = spyOn(EventHandler, 'off')
+
+ dropdown.dispose()
+
+ expect(dropdown._menu).toBeNull()
+ expect(dropdown._element).toBeNull()
+ expect(spy).toHaveBeenCalledWith(btnDropdown, Dropdown.EVENT_KEY)
+ })
+
+ it('should dispose dropdown with Popper', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropdown.toggle()
+
+ expect(dropdown._popper).not.toBeNull()
+ expect(dropdown._menu).not.toBeNull()
+ expect(dropdown._element).not.toBeNull()
+
+ dropdown.dispose()
+
+ expect(dropdown._popper).toBeNull()
+ expect(dropdown._menu).toBeNull()
+ expect(dropdown._element).toBeNull()
+ })
+ })
+
+ describe('update', () => {
+ it('should call Popper and detect navbar on update', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ dropdown.toggle()
+
+ expect(dropdown._popper).not.toBeNull()
+
+ const spyUpdate = spyOn(dropdown._popper, 'update')
+ const spyDetect = spyOn(dropdown, '_detectNavbar')
+
+ dropdown.update()
+
+ expect(spyUpdate).toHaveBeenCalled()
+ expect(spyDetect).toHaveBeenCalled()
+ })
+
+ it('should just detect navbar on update', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(btnDropdown)
+
+ const spy = spyOn(dropdown, '_detectNavbar')
+
+ dropdown.update()
+
+ expect(dropdown._popper).toBeNull()
+ expect(spy).toHaveBeenCalled()
+ })
+ })
+
+ describe('data-api', () => {
+ it('should show and hide a dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ let showEventTriggered = false
+ let hideEventTriggered = false
+
+ btnDropdown.addEventListener('show.bs.dropdown', () => {
+ showEventTriggered = true
+ })
+
+ btnDropdown.addEventListener('shown.bs.dropdown', event => setTimeout(() => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ expect(showEventTriggered).toBeTrue()
+ expect(event.relatedTarget).toEqual(btnDropdown)
+ document.body.click()
+ }))
+
+ btnDropdown.addEventListener('hide.bs.dropdown', () => {
+ hideEventTriggered = true
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', event => {
+ expect(btnDropdown).not.toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
+ expect(hideEventTriggered).toBeTrue()
+ expect(event.relatedTarget).toEqual(btnDropdown)
+ resolve()
+ })
+
+ btnDropdown.click()
+ })
+ })
+
+ it('should not use "static" Popper in navbar', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<nav class="navbar navbar-expand-md bg-light">',
+ ' <div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ ' </div>',
+ '</nav>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(dropdown._popper).not.toBeNull()
+ expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should not collapse the dropdown when clicking a select option nested in the dropdown', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <select>',
+ ' <option selected>Open this select menu</option>',
+ ' <option value="1">One</option>',
+ ' </select>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ const hideSpy = spyOn(dropdown, '_completeHide')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ const clickEvent = new MouseEvent('click', {
+ bubbles: true
+ })
+
+ dropdownMenu.querySelector('option').dispatchEvent(clickEvent)
+ })
+
+ dropdownMenu.addEventListener('click', event => {
+ expect(event.target.tagName).toMatch(/select|option/i)
+
+ Dropdown.clearMenus(event)
+
+ setTimeout(() => {
+ expect(hideSpy).not.toHaveBeenCalled()
+ resolve()
+ }, 10)
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should manage bs attribute `data-bs-popper`="static" when dropdown is in navbar', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<nav class="navbar navbar-expand-md bg-light">',
+ ' <div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ ' </div>',
+ '</nav>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
+ dropdown.hide()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(dropdownMenu.getAttribute('data-bs-popper')).toBeNull()
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should not use Popper if display set to static', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-display="static">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ // Popper adds this attribute when we use it
+ expect(dropdownMenu.getAttribute('data-popper-placement')).toBeNull()
+ resolve()
+ })
+
+ btnDropdown.click()
+ })
+ })
+
+ it('should manage bs attribute `data-bs-popper`="static" when display set to static', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-display="static">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const dropdown = new Dropdown(btnDropdown)
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
+ dropdown.hide()
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(dropdownMenu.getAttribute('data-bs-popper')).toBeNull()
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should remove "show" class if tabbing outside of menu', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(btnDropdown).toHaveClass('show')
+
+ const keyup = createEvent('keyup')
+
+ keyup.key = 'Tab'
+ document.dispatchEvent(keyup)
+ })
+
+ btnDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect(btnDropdown).not.toHaveClass('show')
+ resolve()
+ })
+
+ btnDropdown.click()
+ })
+ })
+
+ it('should remove "show" class if body is clicked, with multiple dropdowns', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="nav">',
+ ' <div class="dropdown" id="testmenu">',
+ ' <a class="dropdown-toggle" data-bs-toggle="dropdown" href="#testmenu">Test menu</a>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
+ ' </div>',
+ ' </div>',
+ '</div>',
+ '<div class="btn-group">',
+ ' <button class="btn">Actions</button>',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"></button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Action 1</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdownList = fixtureEl.querySelectorAll('[data-bs-toggle="dropdown"]')
+
+ expect(triggerDropdownList).toHaveSize(2)
+
+ const [triggerDropdownFirst, triggerDropdownLast] = triggerDropdownList
+
+ triggerDropdownFirst.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdownFirst).toHaveClass('show')
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
+ document.body.click()
+ })
+
+ triggerDropdownFirst.addEventListener('hidden.bs.dropdown', () => {
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
+ triggerDropdownLast.click()
+ })
+
+ triggerDropdownLast.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdownLast).toHaveClass('show')
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
+ document.body.click()
+ })
+
+ triggerDropdownLast.addEventListener('hidden.bs.dropdown', () => {
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
+ resolve()
+ })
+
+ triggerDropdownFirst.click()
+ })
+ })
+
+ it('should remove "show" class if body if tabbing outside of menu, with multiple dropdowns', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <a class="dropdown-toggle" data-bs-toggle="dropdown" href="#testmenu">Test menu</a>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
+ ' </div>',
+ '</div>',
+ '<div class="btn-group">',
+ ' <button class="btn">Actions</button>',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"></button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Action 1</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdownList = fixtureEl.querySelectorAll('[data-bs-toggle="dropdown"]')
+
+ expect(triggerDropdownList).toHaveSize(2)
+
+ const [triggerDropdownFirst, triggerDropdownLast] = triggerDropdownList
+
+ triggerDropdownFirst.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdownFirst).toHaveClass('show')
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
+
+ const keyup = createEvent('keyup')
+ keyup.key = 'Tab'
+
+ document.dispatchEvent(keyup)
+ })
+
+ triggerDropdownFirst.addEventListener('hidden.bs.dropdown', () => {
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
+ triggerDropdownLast.click()
+ })
+
+ triggerDropdownLast.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdownLast).toHaveClass('show')
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
+
+ const keyup = createEvent('keyup')
+ keyup.key = 'Tab'
+
+ document.dispatchEvent(keyup)
+ })
+
+ triggerDropdownLast.addEventListener('hidden.bs.dropdown', () => {
+ expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
+ resolve()
+ })
+
+ triggerDropdownFirst.click()
+ })
+ })
+
+ it('should be able to identify clicked dropdown, even with multiple dropdowns in the same tag', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button id="dropdown1" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
+ ' <div id="menu1" class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ ' <button id="dropdown2" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
+ ' <div id="menu2" class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle1 = fixtureEl.querySelector('#dropdown1')
+ const dropdownToggle2 = fixtureEl.querySelector('#dropdown2')
+ const dropdownMenu1 = fixtureEl.querySelector('#menu1')
+ const dropdownMenu2 = fixtureEl.querySelector('#menu2')
+ const spy = spyOn(Dropdown, 'getOrCreateInstance').and.callThrough()
+
+ dropdownToggle1.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle1)
+
+ dropdownToggle2.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle2)
+
+ dropdownMenu1.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle1)
+
+ dropdownMenu2.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle2)
+ })
+
+ it('should be able to show the proper menu, even with multiple dropdowns in the same tag', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button id="dropdown1" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
+ ' <div id="menu1" class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ ' <button id="dropdown2" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
+ ' <div id="menu2" class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle1 = fixtureEl.querySelector('#dropdown1')
+ const dropdownToggle2 = fixtureEl.querySelector('#dropdown2')
+ const dropdownMenu1 = fixtureEl.querySelector('#menu1')
+ const dropdownMenu2 = fixtureEl.querySelector('#menu2')
+
+ dropdownToggle1.click()
+ expect(dropdownMenu1).toHaveClass('show')
+ expect(dropdownMenu2).not.toHaveClass('show')
+
+ dropdownToggle2.click()
+ expect(dropdownMenu1).not.toHaveClass('show')
+ expect(dropdownMenu2).toHaveClass('show')
+ })
+
+ it('should fire hide and hidden event without a clickEvent if event type is not click', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ triggerDropdown.addEventListener('hide.bs.dropdown', event => {
+ expect(event.clickEvent).toBeUndefined()
+ })
+
+ triggerDropdown.addEventListener('hidden.bs.dropdown', event => {
+ expect(event.clickEvent).toBeUndefined()
+ resolve()
+ })
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ const keydown = createEvent('keydown')
+
+ keydown.key = 'Escape'
+ triggerDropdown.dispatchEvent(keydown)
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should bubble up the events to the parent elements', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#subMenu">Sub menu</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownParent = fixtureEl.querySelector('.dropdown')
+ const dropdown = new Dropdown(triggerDropdown)
+
+ const showFunction = jasmine.createSpy('showFunction')
+ dropdownParent.addEventListener('show.bs.dropdown', showFunction)
+
+ const shownFunction = jasmine.createSpy('shownFunction')
+ dropdownParent.addEventListener('shown.bs.dropdown', () => {
+ shownFunction()
+ dropdown.hide()
+ })
+
+ const hideFunction = jasmine.createSpy('hideFunction')
+ dropdownParent.addEventListener('hide.bs.dropdown', hideFunction)
+
+ dropdownParent.addEventListener('hidden.bs.dropdown', () => {
+ expect(showFunction).toHaveBeenCalled()
+ expect(shownFunction).toHaveBeenCalled()
+ expect(hideFunction).toHaveBeenCalled()
+ resolve()
+ })
+
+ dropdown.show()
+ })
+ })
+
+ it('should ignore keyboard events within <input>s and <textarea>s', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
+ ' <input type="text">',
+ ' <textarea></textarea>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const input = fixtureEl.querySelector('input')
+ const textarea = fixtureEl.querySelector('textarea')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ input.focus()
+ const keydown = createEvent('keydown')
+
+ keydown.key = 'ArrowUp'
+ input.dispatchEvent(keydown)
+
+ expect(document.activeElement).toEqual(input, 'input still focused')
+
+ textarea.focus()
+ textarea.dispatchEvent(keydown)
+
+ expect(document.activeElement).toEqual(textarea, 'textarea still focused')
+ resolve()
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should skip disabled element when using keyboard navigation', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item disabled" href="#sub1">Submenu 1</a>',
+ ' <button class="dropdown-item" type="button" disabled>Disabled button</button>',
+ ' <a id="item1" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ const keydown = createEvent('keydown')
+ keydown.key = 'ArrowDown'
+
+ triggerDropdown.dispatchEvent(keydown)
+ triggerDropdown.dispatchEvent(keydown)
+
+ expect(document.activeElement).not.toHaveClass('disabled')
+ expect(document.activeElement.hasAttribute('disabled')).toBeFalse()
+ resolve()
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should skip hidden element when using keyboard navigation', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<style>',
+ ' .d-none {',
+ ' display: none;',
+ ' }',
+ '</style>',
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <button class="dropdown-item d-none" type="button">Hidden button by class</button>',
+ ' <a class="dropdown-item" href="#sub1" style="display: none">Hidden link</a>',
+ ' <a class="dropdown-item" href="#sub1" style="visibility: hidden">Hidden link</a>',
+ ' <a id="item1" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ const keydown = createEvent('keydown')
+ keydown.key = 'ArrowDown'
+
+ triggerDropdown.dispatchEvent(keydown)
+
+ expect(document.activeElement).not.toHaveClass('d-none')
+ expect(document.activeElement.style.display).not.toEqual('none')
+ expect(document.activeElement.style.visibility).not.toEqual('hidden')
+
+ resolve()
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should focus next/previous element when using keyboard navigation', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a id="item1" class="dropdown-item" href="#">A link</a>',
+ ' <a id="item2" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const item1 = fixtureEl.querySelector('#item1')
+ const item2 = fixtureEl.querySelector('#item2')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ const keydownArrowDown = createEvent('keydown')
+ keydownArrowDown.key = 'ArrowDown'
+
+ triggerDropdown.dispatchEvent(keydownArrowDown)
+ expect(document.activeElement).toEqual(item1, 'item1 is focused')
+
+ document.activeElement.dispatchEvent(keydownArrowDown)
+ expect(document.activeElement).toEqual(item2, 'item2 is focused')
+
+ const keydownArrowUp = createEvent('keydown')
+ keydownArrowUp.key = 'ArrowUp'
+
+ document.activeElement.dispatchEvent(keydownArrowUp)
+ expect(document.activeElement).toEqual(item1, 'item1 is focused')
+
+ resolve()
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should open the dropdown and focus on the last item when using ArrowUp for the first time', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a id="item1" class="dropdown-item" href="#">A link</a>',
+ ' <a id="item2" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const lastItem = fixtureEl.querySelector('#item2')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ setTimeout(() => {
+ expect(document.activeElement).toEqual(lastItem, 'item2 is focused')
+ resolve()
+ })
+ })
+
+ const keydown = createEvent('keydown')
+ keydown.key = 'ArrowUp'
+ triggerDropdown.dispatchEvent(keydown)
+ })
+ })
+
+ it('should open the dropdown and focus on the first item when using ArrowDown for the first time', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a id="item1" class="dropdown-item" href="#">A link</a>',
+ ' <a id="item2" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const firstItem = fixtureEl.querySelector('#item1')
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ setTimeout(() => {
+ expect(document.activeElement).toEqual(firstItem, 'item1 is focused')
+ resolve()
+ })
+ })
+
+ const keydown = createEvent('keydown')
+ keydown.key = 'ArrowDown'
+ triggerDropdown.dispatchEvent(keydown)
+ })
+ })
+
+ it('should not close the dropdown if the user clicks on a text field within dropdown-menu', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <input type="text">',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const input = fixtureEl.querySelector('input')
+
+ input.addEventListener('click', () => {
+ expect(triggerDropdown).toHaveClass('show')
+ resolve()
+ })
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdown).toHaveClass('show')
+ input.dispatchEvent(createEvent('click'))
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should not close the dropdown if the user clicks on a textarea within dropdown-menu', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <textarea></textarea>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const textarea = fixtureEl.querySelector('textarea')
+
+ textarea.addEventListener('click', () => {
+ expect(triggerDropdown).toHaveClass('show')
+ resolve()
+ })
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ expect(triggerDropdown).toHaveClass('show')
+ textarea.dispatchEvent(createEvent('click'))
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should close the dropdown if the user clicks on a text field that is not contained within dropdown-menu', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' </div>',
+ '</div>',
+ '<input type="text">'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const input = fixtureEl.querySelector('input')
+
+ triggerDropdown.addEventListener('hidden.bs.dropdown', () => {
+ expect().nothing()
+ resolve()
+ })
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ input.dispatchEvent(createEvent('click', {
+ bubbles: true
+ }))
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should ignore keyboard events for <input>s and <textarea>s within dropdown-menu, except for escape key', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
+ ' <input type="text">',
+ ' <textarea></textarea>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const input = fixtureEl.querySelector('input')
+ const textarea = fixtureEl.querySelector('textarea')
+
+ const test = (eventKey, elementToDispatch) => {
+ const event = createEvent('keydown')
+ event.key = eventKey
+ elementToDispatch.focus()
+ elementToDispatch.dispatchEvent(event)
+ expect(document.activeElement).toEqual(elementToDispatch, `${elementToDispatch.tagName} still focused`)
+ }
+
+ const keydownEscape = createEvent('keydown')
+ keydownEscape.key = 'Escape'
+
+ triggerDropdown.addEventListener('shown.bs.dropdown', () => {
+ // Key Space
+ test('Space', input)
+
+ test('Space', textarea)
+
+ // Key ArrowUp
+ test('ArrowUp', input)
+
+ test('ArrowUp', textarea)
+
+ // Key ArrowDown
+ test('ArrowDown', input)
+
+ test('ArrowDown', textarea)
+
+ // Key Escape
+ input.focus()
+ input.dispatchEvent(keydownEscape)
+
+ expect(triggerDropdown).not.toHaveClass('show')
+ resolve()
+ })
+
+ triggerDropdown.click()
+ })
+ })
+
+ it('should not open dropdown if escape key was pressed on the toggle', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="tabs">',
+ ' <div class="dropdown">',
+ ' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' <a class="dropdown-item" href="#">Something else here</a>',
+ ' <div class="divider"></div>',
+ ' <a class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = new Dropdown(triggerDropdown)
+ const button = fixtureEl.querySelector('button[data-bs-toggle="dropdown"]')
+
+ const spy = spyOn(dropdown, 'toggle')
+
+ // Key escape
+ button.focus()
+ // Key escape
+ const keydownEscape = createEvent('keydown')
+ keydownEscape.key = 'Escape'
+ button.dispatchEvent(keydownEscape)
+
+ setTimeout(() => {
+ expect(spy).not.toHaveBeenCalled()
+ expect(triggerDropdown).not.toHaveClass('show')
+ resolve()
+ }, 20)
+ })
+ })
+
+ it('should propagate escape key events if dropdown is closed', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="parent">',
+ ' <div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Some Item</a>',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const parent = fixtureEl.querySelector('.parent')
+ const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ const parentKeyHandler = jasmine.createSpy('parentKeyHandler')
+
+ parent.addEventListener('keydown', parentKeyHandler)
+ parent.addEventListener('keyup', () => {
+ expect(parentKeyHandler).toHaveBeenCalled()
+ resolve()
+ })
+
+ const keydownEscape = createEvent('keydown', { bubbles: true })
+ keydownEscape.key = 'Escape'
+ const keyupEscape = createEvent('keyup', { bubbles: true })
+ keyupEscape.key = 'Escape'
+
+ toggle.focus()
+ toggle.dispatchEvent(keydownEscape)
+ toggle.dispatchEvent(keyupEscape)
+ })
+ })
+
+ it('should not propagate escape key events if dropdown is open', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="parent">',
+ ' <div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Some Item</a>',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const parent = fixtureEl.querySelector('.parent')
+ const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ const parentKeyHandler = jasmine.createSpy('parentKeyHandler')
+
+ parent.addEventListener('keydown', parentKeyHandler)
+ parent.addEventListener('keyup', () => {
+ expect(parentKeyHandler).not.toHaveBeenCalled()
+ resolve()
+ })
+
+ const keydownEscape = createEvent('keydown', { bubbles: true })
+ keydownEscape.key = 'Escape'
+ const keyupEscape = createEvent('keyup', { bubbles: true })
+ keyupEscape.key = 'Escape'
+
+ toggle.click()
+ toggle.dispatchEvent(keydownEscape)
+ toggle.dispatchEvent(keyupEscape)
+ })
+ })
+
+ it('should close dropdown using `escape` button, and return focus to its trigger', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Some Item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+
+ toggle.addEventListener('shown.bs.dropdown', () => {
+ const keydownEvent = createEvent('keydown', { bubbles: true })
+ keydownEvent.key = 'ArrowDown'
+ toggle.dispatchEvent(keydownEvent)
+ keydownEvent.key = 'Escape'
+ toggle.dispatchEvent(keydownEvent)
+ })
+
+ toggle.addEventListener('hidden.bs.dropdown', () => setTimeout(() => {
+ expect(document.activeElement).toEqual(toggle)
+ resolve()
+ }))
+
+ toggle.click()
+ })
+ })
+
+ it('should close dropdown (only) by clicking inside the dropdown menu when it has data-attribute `data-bs-auto-close="inside"`', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="inside">Dropdown toggle</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+
+ const expectDropdownToBeOpened = () => setTimeout(() => {
+ expect(dropdownToggle).toHaveClass('show')
+ dropdownMenu.click()
+ }, 150)
+
+ dropdownToggle.addEventListener('shown.bs.dropdown', () => {
+ document.documentElement.click()
+ expectDropdownToBeOpened()
+ })
+
+ dropdownToggle.addEventListener('hidden.bs.dropdown', () => setTimeout(() => {
+ expect(dropdownToggle).not.toHaveClass('show')
+ resolve()
+ }))
+
+ dropdownToggle.click()
+ })
+ })
+
+ it('should close dropdown (only) by clicking outside the dropdown menu when it has data-attribute `data-bs-auto-close="outside"`', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="outside">Dropdown toggle</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+
+ const expectDropdownToBeOpened = () => setTimeout(() => {
+ expect(dropdownToggle).toHaveClass('show')
+ document.documentElement.click()
+ }, 150)
+
+ dropdownToggle.addEventListener('shown.bs.dropdown', () => {
+ dropdownMenu.click()
+ expectDropdownToBeOpened()
+ })
+
+ dropdownToggle.addEventListener('hidden.bs.dropdown', () => {
+ expect(dropdownToggle).not.toHaveClass('show')
+ resolve()
+ })
+
+ dropdownToggle.click()
+ })
+ })
+
+ it('should not close dropdown by clicking inside or outside the dropdown menu when it has data-attribute `data-bs-auto-close="false"`', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="false">Dropdown toggle</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+
+ const expectDropdownToBeOpened = (shouldTriggerClick = true) => setTimeout(() => {
+ expect(dropdownToggle).toHaveClass('show')
+ if (shouldTriggerClick) {
+ document.documentElement.click()
+ } else {
+ resolve()
+ }
+
+ expectDropdownToBeOpened(false)
+ }, 150)
+
+ dropdownToggle.addEventListener('shown.bs.dropdown', () => {
+ dropdownMenu.click()
+ expectDropdownToBeOpened()
+ })
+
+ dropdownToggle.click()
+ })
+ })
+
+ it('should be able to identify clicked dropdown, no matter the markup order', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Dropdown item</a>',
+ ' </div>',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
+ '</div>'
+ ].join('')
+
+ const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
+ const spy = spyOn(Dropdown, 'getOrCreateInstance').and.callThrough()
+
+ dropdownToggle.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle)
+ dropdownMenu.click()
+ expect(spy).toHaveBeenCalledWith(dropdownToggle)
+ })
+ })
+
+ describe('jQueryInterface', () => {
+ it('should create a dropdown', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+
+ jQueryMock.fn.dropdown = Dropdown.jQueryInterface
+ jQueryMock.elements = [div]
+
+ jQueryMock.fn.dropdown.call(jQueryMock)
+
+ expect(Dropdown.getInstance(div)).not.toBeNull()
+ })
+
+ it('should not re create a dropdown', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const dropdown = new Dropdown(div)
+
+ jQueryMock.fn.dropdown = Dropdown.jQueryInterface
+ jQueryMock.elements = [div]
+
+ jQueryMock.fn.dropdown.call(jQueryMock)
+
+ expect(Dropdown.getInstance(div)).toEqual(dropdown)
+ })
+
+ it('should throw error on undefined method', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const action = 'undefinedMethod'
+
+ jQueryMock.fn.dropdown = Dropdown.jQueryInterface
+ jQueryMock.elements = [div]
+
+ expect(() => {
+ jQueryMock.fn.dropdown.call(jQueryMock, action)
+ }).toThrowError(TypeError, `No method named "${action}"`)
+ })
+ })
+
+ describe('getInstance', () => {
+ it('should return dropdown instance', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const dropdown = new Dropdown(div)
+
+ expect(Dropdown.getInstance(div)).toEqual(dropdown)
+ expect(Dropdown.getInstance(div)).toBeInstanceOf(Dropdown)
+ })
+
+ it('should return null when there is no dropdown instance', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+
+ expect(Dropdown.getInstance(div)).toBeNull()
+ })
+ })
+
+ describe('getOrCreateInstance', () => {
+ it('should return dropdown instance', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const dropdown = new Dropdown(div)
+
+ expect(Dropdown.getOrCreateInstance(div)).toEqual(dropdown)
+ expect(Dropdown.getInstance(div)).toEqual(Dropdown.getOrCreateInstance(div, {}))
+ expect(Dropdown.getOrCreateInstance(div)).toBeInstanceOf(Dropdown)
+ })
+
+ it('should return new instance when there is no dropdown instance', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+
+ expect(Dropdown.getInstance(div)).toBeNull()
+ expect(Dropdown.getOrCreateInstance(div)).toBeInstanceOf(Dropdown)
+ })
+
+ it('should return new instance when there is no dropdown instance with given configuration', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+
+ expect(Dropdown.getInstance(div)).toBeNull()
+ const dropdown = Dropdown.getOrCreateInstance(div, {
+ display: 'dynamic'
+ })
+ expect(dropdown).toBeInstanceOf(Dropdown)
+
+ expect(dropdown._config.display).toEqual('dynamic')
+ })
+
+ it('should return the instance when exists without given configuration', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const dropdown = new Dropdown(div, {
+ display: 'dynamic'
+ })
+ expect(Dropdown.getInstance(div)).toEqual(dropdown)
+
+ const dropdown2 = Dropdown.getOrCreateInstance(div, {
+ display: 'static'
+ })
+ expect(dropdown).toBeInstanceOf(Dropdown)
+ expect(dropdown2).toEqual(dropdown)
+
+ expect(dropdown2._config.display).toEqual('dynamic')
+ })
+ })
+
+ it('should open dropdown when pressing keydown or keyup', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item disabled" href="#sub1">Submenu 1</a>',
+ ' <button class="dropdown-item" type="button" disabled>Disabled button</button>',
+ ' <a id="item1" class="dropdown-item" href="#">Another link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const dropdown = fixtureEl.querySelector('.dropdown')
+
+ const keydown = createEvent('keydown')
+ keydown.key = 'ArrowDown'
+
+ const keyup = createEvent('keyup')
+ keyup.key = 'ArrowUp'
+
+ const handleArrowDown = () => {
+ expect(triggerDropdown).toHaveClass('show')
+ expect(triggerDropdown.getAttribute('aria-expanded')).toEqual('true')
+ setTimeout(() => {
+ dropdown.hide()
+ keydown.key = 'ArrowUp'
+ triggerDropdown.dispatchEvent(keyup)
+ }, 20)
+ }
+
+ const handleArrowUp = () => {
+ expect(triggerDropdown).toHaveClass('show')
+ expect(triggerDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ }
+
+ dropdown.addEventListener('shown.bs.dropdown', event => {
+ if (event.target.key === 'ArrowDown') {
+ handleArrowDown()
+ } else {
+ handleArrowUp()
+ }
+ })
+
+ triggerDropdown.dispatchEvent(keydown)
+ })
+ })
+
+ it('should allow `data-bs-toggle="dropdown"` click events to bubble up', () => {
+ fixtureEl.innerHTML = [
+ '<div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#">Secondary link</a>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const clickListener = jasmine.createSpy('clickListener')
+ const delegatedClickListener = jasmine.createSpy('delegatedClickListener')
+
+ btnDropdown.addEventListener('click', clickListener)
+ document.addEventListener('click', delegatedClickListener)
+
+ btnDropdown.click()
+
+ expect(clickListener).toHaveBeenCalled()
+ expect(delegatedClickListener).toHaveBeenCalled()
+ })
+
+ it('should open the dropdown when clicking the child element inside `data-bs-toggle="dropdown"`', () => {
+ return new Promise(resolve => {
+ fixtureEl.innerHTML = [
+ '<div class="container">',
+ ' <div class="dropdown">',
+ ' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"><span id="childElement">Dropdown</span></button>',
+ ' <div class="dropdown-menu">',
+ ' <a class="dropdown-item" href="#subMenu">Sub menu</a>',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
+ const childElement = fixtureEl.querySelector('#childElement')
+
+ btnDropdown.addEventListener('shown.bs.dropdown', () => setTimeout(() => {
+ expect(btnDropdown).toHaveClass('show')
+ expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
+ resolve()
+ }))
+
+ childElement.click()
+ })
+ })
+})
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 10:40:28 +0000