diff options
Diffstat (limited to 'assets/javascripts/bootstrap/dropdown.js')
| -rw-r--r-- | assets/javascripts/bootstrap/dropdown.js | 220 |
1 files changed, 175 insertions, 45 deletions
diff --git a/assets/javascripts/bootstrap/dropdown.js b/assets/javascripts/bootstrap/dropdown.js index 87fa677..a2593e1 100644 --- a/assets/javascripts/bootstrap/dropdown.js +++ b/assets/javascripts/bootstrap/dropdown.js @@ -1,3 +1,5 @@ +var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; + var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } @@ -12,6 +14,14 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons var Dropdown = function ($) { /** + * Check for Popper dependency + * Popper - https://popper.js.org + */ + if (typeof Popper === 'undefined') { + throw new Error('Bootstrap dropdown require Popper.js (https://popper.js.org)'); + } + + /** * ------------------------------------------------------------------------ * Constants * ------------------------------------------------------------------------ @@ -24,9 +34,12 @@ var Dropdown = function ($) { var DATA_API_KEY = '.data-api'; var JQUERY_NO_CONFLICT = $.fn[NAME]; var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key + var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key + var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse) + var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + '|' + ARROW_DOWN_KEYCODE + '|' + ESCAPE_KEYCODE); var Event = { HIDE: 'hide' + EVENT_KEY, @@ -35,24 +48,43 @@ var Dropdown = function ($) { SHOWN: 'shown' + EVENT_KEY, CLICK: 'click' + EVENT_KEY, CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY, - FOCUSIN_DATA_API: 'focusin' + EVENT_KEY + DATA_API_KEY, - KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY + KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY, + KEYUP_DATA_API: 'keyup' + EVENT_KEY + DATA_API_KEY }; var ClassName = { - BACKDROP: 'dropdown-backdrop', DISABLED: 'disabled', - SHOW: 'show' + SHOW: 'show', + DROPUP: 'dropup', + MENURIGHT: 'dropdown-menu-right', + MENULEFT: 'dropdown-menu-left' }; var Selector = { - BACKDROP: '.dropdown-backdrop', DATA_TOGGLE: '[data-toggle="dropdown"]', FORM_CHILD: '.dropdown form', - ROLE_MENU: '[role="menu"]', - ROLE_LISTBOX: '[role="listbox"]', + MENU: '.dropdown-menu', NAVBAR_NAV: '.navbar-nav', - VISIBLE_ITEMS: '[role="menu"] li:not(.disabled) a, ' + '[role="listbox"] li:not(.disabled) a' + VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled)' + }; + + var AttachmentMap = { + TOP: 'top-start', + TOPEND: 'top-end', + BOTTOM: 'bottom-start', + BOTTOMEND: 'bottom-end' + }; + + var Default = { + placement: AttachmentMap.BOTTOM, + offset: 0, + flip: true + }; + + var DefaultType = { + placement: 'string', + offset: '(number|string)', + flip: 'boolean' }; /** @@ -62,10 +94,13 @@ var Dropdown = function ($) { */ var Dropdown = function () { - function Dropdown(element) { + function Dropdown(element, config) { _classCallCheck(this, Dropdown); this._element = element; + this._popper = null; + this._config = this._getConfig(config); + this._menu = this._getMenuElement(); this._addEventListeners(); } @@ -75,58 +110,130 @@ var Dropdown = function ($) { // public Dropdown.prototype.toggle = function toggle() { - if (this.disabled || $(this).hasClass(ClassName.DISABLED)) { - return false; + if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) { + return; } - var parent = Dropdown._getParentFromElement(this); - var isActive = $(parent).hasClass(ClassName.SHOW); + var parent = Dropdown._getParentFromElement(this._element); + var isActive = $(this._menu).hasClass(ClassName.SHOW); Dropdown._clearMenus(); if (isActive) { - return false; - } - - if ('ontouchstart' in document.documentElement && !$(parent).closest(Selector.NAVBAR_NAV).length) { - - // if mobile we use a backdrop because click events don't delegate - var dropdown = document.createElement('div'); - dropdown.className = ClassName.BACKDROP; - $(dropdown).insertBefore(this); - $(dropdown).on('click', Dropdown._clearMenus); + return; } var relatedTarget = { - relatedTarget: this + relatedTarget: this._element }; var showEvent = $.Event(Event.SHOW, relatedTarget); $(parent).trigger(showEvent); if (showEvent.isDefaultPrevented()) { - return false; + return; } - this.focus(); - this.setAttribute('aria-expanded', true); + var element = this._element; + // for dropup with alignment we use the parent as popper container + if ($(parent).hasClass(ClassName.DROPUP)) { + if ($(this._menu).hasClass(ClassName.MENULEFT) || $(this._menu).hasClass(ClassName.MENURIGHT)) { + element = parent; + } + } + this._popper = new Popper(element, this._menu, { + placement: this._getPlacement(), + modifiers: { + offset: { + offset: this._config.offset + }, + flip: { + enabled: this._config.flip + } + } + }); + + // if this is a touch-enabled device we add extra + // empty mouseover listeners to the body's immediate children; + // only needed because of broken event delegation on iOS + // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html + if ('ontouchstart' in document.documentElement && !$(parent).closest(Selector.NAVBAR_NAV).length) { + $('body').children().on('mouseover', null, $.noop); + } - $(parent).toggleClass(ClassName.SHOW); - $(parent).trigger($.Event(Event.SHOWN, relatedTarget)); + this._element.focus(); + this._element.setAttribute('aria-expanded', true); - return false; + $(this._menu).toggleClass(ClassName.SHOW); + $(parent).toggleClass(ClassName.SHOW).trigger($.Event(Event.SHOWN, relatedTarget)); }; Dropdown.prototype.dispose = function 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; + }; + + Dropdown.prototype.update = function update() { + if (this._popper !== null) { + this._popper.scheduleUpdate(); + } }; // private Dropdown.prototype._addEventListeners = function _addEventListeners() { - $(this._element).on(Event.CLICK, this.toggle); + var _this = this; + + $(this._element).on(Event.CLICK, function (event) { + event.preventDefault(); + event.stopPropagation(); + _this.toggle(); + }); + }; + + Dropdown.prototype._getConfig = function _getConfig(config) { + var elementData = $(this._element).data(); + if (elementData.placement !== undefined) { + elementData.placement = AttachmentMap[elementData.placement.toUpperCase()]; + } + + config = $.extend({}, this.constructor.Default, $(this._element).data(), config); + + Util.typeCheckConfig(NAME, config, this.constructor.DefaultType); + + return config; + }; + + Dropdown.prototype._getMenuElement = function _getMenuElement() { + if (!this._menu) { + var parent = Dropdown._getParentFromElement(this._element); + this._menu = $(parent).find(Selector.MENU)[0]; + } + return this._menu; + }; + + Dropdown.prototype._getPlacement = function _getPlacement() { + var $parentDropdown = $(this._element).parent(); + var placement = this._config.placement; + + // Handle dropup + if ($parentDropdown.hasClass(ClassName.DROPUP) || this._config.placement === AttachmentMap.TOP) { + placement = AttachmentMap.TOP; + if ($(this._menu).hasClass(ClassName.MENURIGHT)) { + placement = AttachmentMap.TOPEND; + } + } else { + if ($(this._menu).hasClass(ClassName.MENURIGHT)) { + placement = AttachmentMap.BOTTOMEND; + } + } + return placement; }; // static @@ -134,9 +241,10 @@ var Dropdown = function ($) { Dropdown._jQueryInterface = function _jQueryInterface(config) { return this.each(function () { var data = $(this).data(DATA_KEY); + var _config = (typeof config === 'undefined' ? 'undefined' : _typeof(config)) === 'object' ? config : null; if (!data) { - data = new Dropdown(this); + data = new Dropdown(this, _config); $(this).data(DATA_KEY, data); } @@ -144,34 +252,34 @@ var Dropdown = function ($) { if (data[config] === undefined) { throw new Error('No method named "' + config + '"'); } - data[config].call(this); + data[config](); } }); }; Dropdown._clearMenus = function _clearMenus(event) { - if (event && event.which === RIGHT_MOUSE_BUTTON_WHICH) { + if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) { return; } - var backdrop = $(Selector.BACKDROP)[0]; - if (backdrop) { - backdrop.parentNode.removeChild(backdrop); - } - var toggles = $.makeArray($(Selector.DATA_TOGGLE)); - for (var i = 0; i < toggles.length; i++) { var parent = Dropdown._getParentFromElement(toggles[i]); + var context = $(toggles[i]).data(DATA_KEY); var relatedTarget = { relatedTarget: toggles[i] }; + if (!context) { + continue; + } + + var dropdownMenu = context._menu; if (!$(parent).hasClass(ClassName.SHOW)) { continue; } - if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'focusin') && $.contains(parent, event.target)) { + if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $.contains(parent, event.target)) { continue; } @@ -181,8 +289,15 @@ var Dropdown = function ($) { 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) { + $('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)); } }; @@ -199,7 +314,7 @@ var Dropdown = function ($) { }; Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) { - if (!/(38|40|27|32)/.test(event.which) || /input|textarea/i.test(event.target.tagName)) { + if (!REGEXP_KEYDOWN.test(event.which) || /button/i.test(event.target.tagName) && event.which === SPACE_KEYCODE || /input|textarea/i.test(event.target.tagName)) { return; } @@ -213,7 +328,7 @@ var Dropdown = function ($) { var parent = Dropdown._getParentFromElement(this); var isActive = $(parent).hasClass(ClassName.SHOW); - if (!isActive && event.which !== ESCAPE_KEYCODE || isActive && event.which === ESCAPE_KEYCODE) { + if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) { if (event.which === ESCAPE_KEYCODE) { var toggle = $(parent).find(Selector.DATA_TOGGLE)[0]; @@ -254,6 +369,16 @@ var Dropdown = function ($) { get: function get() { return VERSION; } + }, { + key: 'Default', + get: function get() { + return Default; + } + }, { + key: 'DefaultType', + get: function get() { + return DefaultType; + } }]); return Dropdown; @@ -265,7 +390,11 @@ var Dropdown = function ($) { * ------------------------------------------------------------------------ */ - $(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_MENU, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_LISTBOX, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + ' ' + Event.FOCUSIN_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) { + $(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + ' ' + Event.KEYUP_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) { + event.preventDefault(); + event.stopPropagation(); + Dropdown._jQueryInterface.call($(this), 'toggle'); + }).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) { e.stopPropagation(); }); @@ -283,4 +412,5 @@ var Dropdown = function ($) { }; return Dropdown; -}(jQuery); +}(jQuery); /* global Popper */ +//# sourceMappingURL=dropdown.js.map
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