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Diffstat (limited to 'vendor/twbs/bootstrap/js/src/dropdown.js')
| -rw-r--r-- | vendor/twbs/bootstrap/js/src/dropdown.js | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/vendor/twbs/bootstrap/js/src/dropdown.js b/vendor/twbs/bootstrap/js/src/dropdown.js new file mode 100644 index 000000000..072bce6e3 --- /dev/null +++ b/vendor/twbs/bootstrap/js/src/dropdown.js @@ -0,0 +1,494 @@ +import $ from 'jquery' +import Popper from 'popper.js' +import Util from './util' + +/** + * -------------------------------------------------------------------------- + * Bootstrap (v4.1.3): dropdown.js + * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) + * -------------------------------------------------------------------------- + */ + +const Dropdown = (($) => { + /** + * ------------------------------------------------------------------------ + * Constants + * ------------------------------------------------------------------------ + */ + + const NAME = 'dropdown' + const VERSION = '4.1.3' + const DATA_KEY = 'bs.dropdown' + const EVENT_KEY = `.${DATA_KEY}` + const DATA_API_KEY = '.data-api' + const JQUERY_NO_CONFLICT = $.fn[NAME] + const ESCAPE_KEYCODE = 27 // KeyboardEvent.which value for Escape (Esc) key + const SPACE_KEYCODE = 32 // KeyboardEvent.which value for space key + const TAB_KEYCODE = 9 // KeyboardEvent.which value for tab key + const ARROW_UP_KEYCODE = 38 // KeyboardEvent.which value for up arrow key + const ARROW_DOWN_KEYCODE = 40 // KeyboardEvent.which value for down arrow key + const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse) + const REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}`) + + const Event = { + HIDE : `hide${EVENT_KEY}`, + HIDDEN : `hidden${EVENT_KEY}`, + SHOW : `show${EVENT_KEY}`, + SHOWN : `shown${EVENT_KEY}`, + CLICK : `click${EVENT_KEY}`, + CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`, + KEYDOWN_DATA_API : `keydown${EVENT_KEY}${DATA_API_KEY}`, + KEYUP_DATA_API : `keyup${EVENT_KEY}${DATA_API_KEY}` + } + + const ClassName = { + DISABLED : 'disabled', + SHOW : 'show', + DROPUP : 'dropup', + DROPRIGHT : 'dropright', + DROPLEFT : 'dropleft', + MENURIGHT : 'dropdown-menu-right', + MENULEFT : 'dropdown-menu-left', + POSITION_STATIC : 'position-static' + } + + const Selector = { + DATA_TOGGLE : '[data-toggle="dropdown"]', + FORM_CHILD : '.dropdown form', + MENU : '.dropdown-menu', + NAVBAR_NAV : '.navbar-nav', + VISIBLE_ITEMS : '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)' + } + + const AttachmentMap = { + TOP : 'top-start', + TOPEND : 'top-end', + BOTTOM : 'bottom-start', + BOTTOMEND : 'bottom-end', + RIGHT : 'right-start', + RIGHTEND : 'right-end', + LEFT : 'left-start', + LEFTEND : 'left-end' + } + + const Default = { + offset : 0, + flip : true, + boundary : 'scrollParent', + reference : 'toggle', + display : 'dynamic' + } + + const DefaultType = { + offset : '(number|string|function)', + flip : 'boolean', + boundary : '(string|element)', + reference : '(string|element)', + display : 'string' + } + + /** + * ------------------------------------------------------------------------ + * Class Definition + * ------------------------------------------------------------------------ + */ + + class Dropdown { + constructor(element, config) { + this._element = element + this._popper = null + this._config = this._getConfig(config) + this._menu = this._getMenuElement() + this._inNavbar = this._detectNavbar() + + this._addEventListeners() + } + + // Getters + + static get VERSION() { + return VERSION + } + + static get Default() { + return Default + } + + static get DefaultType() { + return DefaultType + } + + // Public + + toggle() { + if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) { + return + } + + const parent = Dropdown._getParentFromElement(this._element) + const isActive = $(this._menu).hasClass(ClassName.SHOW) + + Dropdown._clearMenus() + + if (isActive) { + return + } + + const relatedTarget = { + relatedTarget: this._element + } + const showEvent = $.Event(Event.SHOW, relatedTarget) + + $(parent).trigger(showEvent) + + if (showEvent.isDefaultPrevented()) { + return + } + + // Disable totally Popper.js for Dropdown in Navbar + if (!this._inNavbar) { + /** + * Check for Popper dependency + * Popper - https://popper.js.org + */ + if (typeof Popper === 'undefined') { + throw new TypeError('Bootstrap dropdown require Popper.js (https://popper.js.org)') + } + + let 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') { + $(parent).addClass(ClassName.POSITION_STATIC) + } + this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig()) + } + + // If this is a touch-enabled device we add extra + // empty mouseover listeners to the body's immediate children; + // only needed because of broken event delegation on iOS + // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html + if ('ontouchstart' in document.documentElement && + $(parent).closest(Selector.NAVBAR_NAV).length === 0) { + $(document.body).children().on('mouseover', null, $.noop) + } + + this._element.focus() + this._element.setAttribute('aria-expanded', true) + + $(this._menu).toggleClass(ClassName.SHOW) + $(parent) + .toggleClass(ClassName.SHOW) + .trigger($.Event(Event.SHOWN, relatedTarget)) + } + + dispose() { + $.removeData(this._element, DATA_KEY) + $(this._element).off(EVENT_KEY) + this._element = null + this._menu = null + if (this._popper !== null) { + this._popper.destroy() + this._popper = null + } + } + + update() { + this._inNavbar = this._detectNavbar() + if (this._popper !== null) { + this._popper.scheduleUpdate() + } + } + + // Private + + _addEventListeners() { + $(this._element).on(Event.CLICK, (event) => { + event.preventDefault() + event.stopPropagation() + this.toggle() + }) + } + + _getConfig(config) { + config = { + ...this.constructor.Default, + ...$(this._element).data(), + ...config + } + + Util.typeCheckConfig( + NAME, + config, + this.constructor.DefaultType + ) + + return config + } + + _getMenuElement() { + if (!this._menu) { + const parent = Dropdown._getParentFromElement(this._element) + if (parent) { + this._menu = parent.querySelector(Selector.MENU) + } + } + return this._menu + } + + _getPlacement() { + const $parentDropdown = $(this._element.parentNode) + let placement = AttachmentMap.BOTTOM + + // Handle dropup + if ($parentDropdown.hasClass(ClassName.DROPUP)) { + placement = AttachmentMap.TOP + if ($(this._menu).hasClass(ClassName.MENURIGHT)) { + placement = AttachmentMap.TOPEND + } + } else if ($parentDropdown.hasClass(ClassName.DROPRIGHT)) { + placement = AttachmentMap.RIGHT + } else if ($parentDropdown.hasClass(ClassName.DROPLEFT)) { + placement = AttachmentMap.LEFT + } else if ($(this._menu).hasClass(ClassName.MENURIGHT)) { + placement = AttachmentMap.BOTTOMEND + } + return placement + } + + _detectNavbar() { + return $(this._element).closest('.navbar').length > 0 + } + + _getPopperConfig() { + const offsetConf = {} + if (typeof this._config.offset === 'function') { + offsetConf.fn = (data) => { + data.offsets = { + ...data.offsets, + ...this._config.offset(data.offsets) || {} + } + return data + } + } else { + offsetConf.offset = this._config.offset + } + + const popperConfig = { + placement: this._getPlacement(), + modifiers: { + offset: offsetConf, + flip: { + enabled: this._config.flip + }, + preventOverflow: { + boundariesElement: this._config.boundary + } + } + } + + // Disable Popper.js if we have a static display + if (this._config.display === 'static') { + popperConfig.modifiers.applyStyle = { + enabled: false + } + } + return popperConfig + } + + // Static + + static _jQueryInterface(config) { + return this.each(function () { + let data = $(this).data(DATA_KEY) + const _config = typeof config === 'object' ? config : null + + if (!data) { + data = new Dropdown(this, _config) + $(this).data(DATA_KEY, data) + } + + if (typeof config === 'string') { + if (typeof data[config] === 'undefined') { + throw new TypeError(`No method named "${config}"`) + } + data[config]() + } + }) + } + + static _clearMenus(event) { + if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || + event.type === 'keyup' && event.which !== TAB_KEYCODE)) { + return + } + + const toggles = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE)) + for (let i = 0, len = toggles.length; i < len; i++) { + const parent = Dropdown._getParentFromElement(toggles[i]) + const context = $(toggles[i]).data(DATA_KEY) + const relatedTarget = { + relatedTarget: toggles[i] + } + + if (event && event.type === 'click') { + relatedTarget.clickEvent = event + } + + if (!context) { + continue + } + + const dropdownMenu = context._menu + if (!$(parent).hasClass(ClassName.SHOW)) { + continue + } + + if (event && (event.type === 'click' && + /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && + $.contains(parent, event.target)) { + continue + } + + const hideEvent = $.Event(Event.HIDE, relatedTarget) + $(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) { + $(document.body).children().off('mouseover', null, $.noop) + } + + toggles[i].setAttribute('aria-expanded', 'false') + + $(dropdownMenu).removeClass(ClassName.SHOW) + $(parent) + .removeClass(ClassName.SHOW) + .trigger($.Event(Event.HIDDEN, relatedTarget)) + } + } + + static _getParentFromElement(element) { + let parent + const selector = Util.getSelectorFromElement(element) + + if (selector) { + parent = document.querySelector(selector) + } + + return parent || element.parentNode + } + + // eslint-disable-next-line complexity + static _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 || + $(event.target).closest(Selector.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) { + return + } + + event.preventDefault() + event.stopPropagation() + + if (this.disabled || $(this).hasClass(ClassName.DISABLED)) { + return + } + + const parent = Dropdown._getParentFromElement(this) + const isActive = $(parent).hasClass(ClassName.SHOW) + + if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || + isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) { + if (event.which === ESCAPE_KEYCODE) { + const toggle = parent.querySelector(Selector.DATA_TOGGLE) + $(toggle).trigger('focus') + } + + $(this).trigger('click') + return + } + + const items = [].slice.call(parent.querySelectorAll(Selector.VISIBLE_ITEMS)) + + if (items.length === 0) { + return + } + + let 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() + } + } + + /** + * ------------------------------------------------------------------------ + * Data Api implementation + * ------------------------------------------------------------------------ + */ + + $(document) + .on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler) + .on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler) + .on(`${Event.CLICK_DATA_API} ${Event.KEYUP_DATA_API}`, Dropdown._clearMenus) + .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) { + event.preventDefault() + event.stopPropagation() + Dropdown._jQueryInterface.call($(this), 'toggle') + }) + .on(Event.CLICK_DATA_API, Selector.FORM_CHILD, (e) => { + e.stopPropagation() + }) + + /** + * ------------------------------------------------------------------------ + * jQuery + * ------------------------------------------------------------------------ + */ + + $.fn[NAME] = Dropdown._jQueryInterface + $.fn[NAME].Constructor = Dropdown + $.fn[NAME].noConflict = function () { + $.fn[NAME] = JQUERY_NO_CONFLICT + return Dropdown._jQueryInterface + } + + return Dropdown +})($, Popper) + +export default Dropdown |