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File: engine/modules/contrib/foundation/js/plugins/foundation.drilldown.js

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File: engine/modules/contrib/foundation/js/plugins/foundation.drilldown.js
Role: Auxiliary data
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Description: Auxiliary data
Class: Quanta CMS
Manage content that works without a database
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Date: 5 years ago
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'use strict'; 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"); } } !function ($) { /** * Drilldown module. * @module foundation.drilldown * @requires foundation.util.keyboard * @requires foundation.util.motion * @requires foundation.util.nest */ var Drilldown = function () { /** * Creates a new instance of a drilldown menu. * @class * @param {jQuery} element - jQuery object to make into an accordion menu. * @param {Object} options - Overrides to the default plugin settings. */ function Drilldown(element, options) { _classCallCheck(this, Drilldown); this.$element = element; this.options = $.extend({}, Drilldown.defaults, this.$element.data(), options); Foundation.Nest.Feather(this.$element, 'drilldown'); this._init(); Foundation.registerPlugin(this, 'Drilldown'); Foundation.Keyboard.register('Drilldown', { 'ENTER': 'open', 'SPACE': 'open', 'ARROW_RIGHT': 'next', 'ARROW_UP': 'up', 'ARROW_DOWN': 'down', 'ARROW_LEFT': 'previous', 'ESCAPE': 'close', 'TAB': 'down', 'SHIFT_TAB': 'up' }); } /** * Initializes the drilldown by creating jQuery collections of elements * @private */ _createClass(Drilldown, [{ key: '_init', value: function _init() { this.$submenuAnchors = this.$element.find('li.is-drilldown-submenu-parent').children('a'); this.$submenus = this.$submenuAnchors.parent('li').children('[data-submenu]'); this.$menuItems = this.$element.find('li').not('.js-drilldown-back').attr('role', 'menuitem').find('a'); this.$element.attr('data-mutate', this.$element.attr('data-drilldown') || Foundation.GetYoDigits(6, 'drilldown')); this._prepareMenu(); this._registerEvents(); this._keyboardEvents(); } /** * prepares drilldown menu by setting attributes to links and elements * sets a min height to prevent content jumping * wraps the element if not already wrapped * @private * @function */ }, { key: '_prepareMenu', value: function _prepareMenu() { var _this = this; // if(!this.options.holdOpen){ // this._menuLinkEvents(); // } this.$submenuAnchors.each(function () { var $link = $(this); var $sub = $link.parent(); if (_this.options.parentLink) { $link.clone().prependTo($sub.children('[data-submenu]')).wrap('<li class="is-submenu-parent-item is-submenu-item is-drilldown-submenu-item" role="menu-item"></li>'); } $link.data('savedHref', $link.attr('href')).removeAttr('href').attr('tabindex', 0); $link.children('[data-submenu]').attr({ 'aria-hidden': true, 'tabindex': 0, 'role': 'menu' }); _this._events($link); }); this.$submenus.each(function () { var $menu = $(this), $back = $menu.find('.js-drilldown-back'); if (!$back.length) { switch (_this.options.backButtonPosition) { case "bottom": $menu.append(_this.options.backButton); break; case "top": $menu.prepend(_this.options.backButton); break; default: console.error("Unsupported backButtonPosition value '" + _this.options.backButtonPosition + "'"); } } _this._back($menu); }); if (!this.options.autoHeight) { this.$submenus.addClass('drilldown-submenu-cover-previous'); } if (!this.$element.parent().hasClass('is-drilldown')) { this.$wrapper = $(this.options.wrapper).addClass('is-drilldown'); if (this.options.animateHeight) this.$wrapper.addClass('animate-height'); this.$wrapper = this.$element.wrap(this.$wrapper).parent().css(this._getMaxDims()); } } }, { key: '_resize', value: function _resize() { this.$wrapper.css({ 'max-width': 'none', 'min-height': 'none' }); // _getMaxDims has side effects (boo) but calling it should update all other necessary heights & widths this.$wrapper.css(this._getMaxDims()); } /** * Adds event handlers to elements in the menu. * @function * @private * @param {jQuery} $elem - the current menu item to add handlers to. */ }, { key: '_events', value: function _events($elem) { var _this = this; $elem.off('click.zf.drilldown').on('click.zf.drilldown', function (e) { if ($(e.target).parentsUntil('ul', 'li').hasClass('is-drilldown-submenu-parent')) { e.stopImmediatePropagation(); e.preventDefault(); } // if(e.target !== e.currentTarget.firstElementChild){ // return false; // } _this._show($elem.parent('li')); if (_this.options.closeOnClick) { var $body = $('body'); $body.off('.zf.drilldown').on('click.zf.drilldown', function (e) { if (e.target === _this.$element[0] || $.contains(_this.$element[0], e.target)) { return; } e.preventDefault(); _this._hideAll(); $body.off('.zf.drilldown'); }); } }); this.$element.on('mutateme.zf.trigger', this._resize.bind(this)); } /** * Adds event handlers to the menu element. * @function * @private */ }, { key: '_registerEvents', value: function _registerEvents() { if (this.options.scrollTop) { this._bindHandler = this._scrollTop.bind(this); this.$element.on('open.zf.drilldown hide.zf.drilldown closed.zf.drilldown', this._bindHandler); } } /** * Scroll to Top of Element or data-scroll-top-element * @function * @fires Drilldown#scrollme */ }, { key: '_scrollTop', value: function _scrollTop() { var _this = this; var $scrollTopElement = _this.options.scrollTopElement != '' ? $(_this.options.scrollTopElement) : _this.$element, scrollPos = parseInt($scrollTopElement.offset().top + _this.options.scrollTopOffset); $('html, body').stop(true).animate({ scrollTop: scrollPos }, _this.options.animationDuration, _this.options.animationEasing, function () { /** * Fires after the menu has scrolled * @event Drilldown#scrollme */ if (this === $('html')[0]) _this.$element.trigger('scrollme.zf.drilldown'); }); } /** * Adds keydown event listener to `li`'s in the menu. * @private */ }, { key: '_keyboardEvents', value: function _keyboardEvents() { var _this = this; this.$menuItems.add(this.$element.find('.js-drilldown-back > a, .is-submenu-parent-item > a')).on('keydown.zf.drilldown', function (e) { var $element = $(this), $elements = $element.parent('li').parent('ul').children('li').children('a'), $prevElement, $nextElement; $elements.each(function (i) { if ($(this).is($element)) { $prevElement = $elements.eq(Math.max(0, i - 1)); $nextElement = $elements.eq(Math.min(i + 1, $elements.length - 1)); return; } }); Foundation.Keyboard.handleKey(e, 'Drilldown', { next: function () { if ($element.is(_this.$submenuAnchors)) { _this._show($element.parent('li')); $element.parent('li').one(Foundation.transitionend($element), function () { $element.parent('li').find('ul li a').filter(_this.$menuItems).first().focus(); }); return true; } }, previous: function () { _this._hide($element.parent('li').parent('ul')); $element.parent('li').parent('ul').one(Foundation.transitionend($element), function () { setTimeout(function () { $element.parent('li').parent('ul').parent('li').children('a').first().focus(); }, 1); }); return true; }, up: function () { $prevElement.focus(); return true; }, down: function () { $nextElement.focus(); return true; }, close: function () { _this._back(); //_this.$menuItems.first().focus(); // focus to first element }, open: function () { if (!$element.is(_this.$menuItems)) { // not menu item means back button _this._hide($element.parent('li').parent('ul')); $element.parent('li').parent('ul').one(Foundation.transitionend($element), function () { setTimeout(function () { $element.parent('li').parent('ul').parent('li').children('a').first().focus(); }, 1); }); return true; } else if ($element.is(_this.$submenuAnchors)) { _this._show($element.parent('li')); $element.parent('li').one(Foundation.transitionend($element), function () { $element.parent('li').find('ul li a').filter(_this.$menuItems).first().focus(); }); return true; } }, handled: function (preventDefault) { if (preventDefault) { e.preventDefault(); } e.stopImmediatePropagation(); } }); }); // end keyboardAccess } /** * Closes all open elements, and returns to root menu. * @function * @fires Drilldown#closed */ }, { key: '_hideAll', value: function _hideAll() { var $elem = this.$element.find('.is-drilldown-submenu.is-active').addClass('is-closing'); if (this.options.autoHeight) this.$wrapper.css({ height: $elem.parent().closest('ul').data('calcHeight') }); $elem.one(Foundation.transitionend($elem), function (e) { $elem.removeClass('is-active is-closing'); }); /** * Fires when the menu is fully closed. * @event Drilldown#closed */ this.$element.trigger('closed.zf.drilldown'); } /** * Adds event listener for each `back` button, and closes open menus. * @function * @fires Drilldown#back * @param {jQuery} $elem - the current sub-menu to add `back` event. */ }, { key: '_back', value: function _back($elem) { var _this = this; $elem.off('click.zf.drilldown'); $elem.children('.js-drilldown-back').on('click.zf.drilldown', function (e) { e.stopImmediatePropagation(); // console.log('mouseup on back'); _this._hide($elem); // If there is a parent submenu, call show var parentSubMenu = $elem.parent('li').parent('ul').parent('li'); if (parentSubMenu.length) { _this._show(parentSubMenu); } }); } /** * Adds event listener to menu items w/o submenus to close open menus on click. * @function * @private */ }, { key: '_menuLinkEvents', value: function _menuLinkEvents() { var _this = this; this.$menuItems.not('.is-drilldown-submenu-parent').off('click.zf.drilldown').on('click.zf.drilldown', function (e) { // e.stopImmediatePropagation(); setTimeout(function () { _this._hideAll(); }, 0); }); } /** * Opens a submenu. * @function * @fires Drilldown#open * @param {jQuery} $elem - the current element with a submenu to open, i.e. the `li` tag. */ }, { key: '_show', value: function _show($elem) { if (this.options.autoHeight) this.$wrapper.css({ height: $elem.children('[data-submenu]').data('calcHeight') }); $elem.attr('aria-expanded', true); $elem.children('[data-submenu]').addClass('is-active').attr('aria-hidden', false); /** * Fires when the submenu has opened. * @event Drilldown#open */ this.$element.trigger('open.zf.drilldown', [$elem]); } }, { key: '_hide', /** * Hides a submenu * @function * @fires Drilldown#hide * @param {jQuery} $elem - the current sub-menu to hide, i.e. the `ul` tag. */ value: function _hide($elem) { if (this.options.autoHeight) this.$wrapper.css({ height: $elem.parent().closest('ul').data('calcHeight') }); var _this = this; $elem.parent('li').attr('aria-expanded', false); $elem.attr('aria-hidden', true).addClass('is-closing'); $elem.addClass('is-closing').one(Foundation.transitionend($elem), function () { $elem.removeClass('is-active is-closing'); $elem.blur(); }); /** * Fires when the submenu has closed. * @event Drilldown#hide */ $elem.trigger('hide.zf.drilldown', [$elem]); } /** * Iterates through the nested menus to calculate the min-height, and max-width for the menu. * Prevents content jumping. * @function * @private */ }, { key: '_getMaxDims', value: function _getMaxDims() { var maxHeight = 0, result = {}, _this = this; this.$submenus.add(this.$element).each(function () { var numOfElems = $(this).children('li').length; var height = Foundation.Box.GetDimensions(this).height; maxHeight = height > maxHeight ? height : maxHeight; if (_this.options.autoHeight) { $(this).data('calcHeight', height); if (!$(this).hasClass('is-drilldown-submenu')) result['height'] = height; } }); if (!this.options.autoHeight) result['min-height'] = maxHeight + 'px'; result['max-width'] = this.$element[0].getBoundingClientRect().width + 'px'; return result; } /** * Destroys the Drilldown Menu * @function */ }, { key: 'destroy', value: function destroy() { if (this.options.scrollTop) this.$element.off('.zf.drilldown', this._bindHandler); this._hideAll(); this.$element.off('mutateme.zf.trigger'); Foundation.Nest.Burn(this.$element, 'drilldown'); this.$element.unwrap().find('.js-drilldown-back, .is-submenu-parent-item').remove().end().find('.is-active, .is-closing, .is-drilldown-submenu').removeClass('is-active is-closing is-drilldown-submenu').end().find('[data-submenu]').removeAttr('aria-hidden tabindex role'); this.$submenuAnchors.each(function () { $(this).off('.zf.drilldown'); }); this.$submenus.removeClass('drilldown-submenu-cover-previous'); this.$element.find('a').each(function () { var $link = $(this); $link.removeAttr('tabindex'); if ($link.data('savedHref')) { $link.attr('href', $link.data('savedHref')).removeData('savedHref'); } else { return; } }); Foundation.unregisterPlugin(this); } }]); return Drilldown; }(); Drilldown.defaults = { /** * Markup used for JS generated back button. Prepended or appended (see backButtonPosition) to submenu lists and deleted on `destroy` method, 'js-drilldown-back' class required. Remove the backslash (`\`) if copy and pasting. * @option * @example '<\li><\a>Back<\/a><\/li>' */ backButton: '<li class="js-drilldown-back"><a tabindex="0">Back</a></li>', /** * Position the back button either at the top or bottom of drilldown submenus. * @option * @example bottom */ backButtonPosition: 'top', /** * Markup used to wrap drilldown menu. Use a class name for independent styling; the JS applied class: `is-drilldown` is required. Remove the backslash (`\`) if copy and pasting. * @option * @example '<\div class="is-drilldown"><\/div>' */ wrapper: '<div></div>', /** * Adds the parent link to the submenu. * @option * @example false */ parentLink: false, /** * Allow the menu to return to root list on body click. * @option * @example false */ closeOnClick: false, /** * Allow the menu to auto adjust height. * @option * @example false */ autoHeight: false, /** * Animate the auto adjust height. * @option * @example false */ animateHeight: false, /** * Scroll to the top of the menu after opening a submenu or navigating back using the menu back button * @option * @example false */ scrollTop: false, /** * String jquery selector (for example 'body') of element to take offset().top from, if empty string the drilldown menu offset().top is taken * @option * @example '' */ scrollTopElement: '', /** * ScrollTop offset * @option * @example 100 */ scrollTopOffset: 0, /** * Scroll animation duration * @option * @example 500 */ animationDuration: 500, /** * Scroll animation easing * @option * @example 'swing' */ animationEasing: 'swing' // holdOpen: false }; // Window exports Foundation.plugin(Drilldown, 'Drilldown'); }(jQuery);