404 lines
12 KiB
JavaScript
404 lines
12 KiB
JavaScript
'use strict';
|
|
|
|
!function($) {
|
|
|
|
/**
|
|
* DropdownMenu module.
|
|
* @module foundation.dropdown-menu
|
|
* @requires foundation.util.keyboard
|
|
* @requires foundation.util.box
|
|
* @requires foundation.util.nest
|
|
*/
|
|
|
|
class DropdownMenu {
|
|
/**
|
|
* Creates a new instance of DropdownMenu.
|
|
* @class
|
|
* @fires DropdownMenu#init
|
|
* @param {jQuery} element - jQuery object to make into a dropdown menu.
|
|
* @param {Object} options - Overrides to the default plugin settings.
|
|
*/
|
|
constructor(element, options) {
|
|
this.$element = element;
|
|
this.options = $.extend({}, DropdownMenu.defaults, this.$element.data(), options);
|
|
|
|
Foundation.Nest.Feather(this.$element, 'dropdown');
|
|
this._init();
|
|
|
|
Foundation.registerPlugin(this, 'DropdownMenu');
|
|
Foundation.Keyboard.register('DropdownMenu', {
|
|
'ENTER': 'open',
|
|
'SPACE': 'open',
|
|
'ARROW_RIGHT': 'next',
|
|
'ARROW_UP': 'up',
|
|
'ARROW_DOWN': 'down',
|
|
'ARROW_LEFT': 'previous',
|
|
'ESCAPE': 'close'
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Initializes the plugin, and calls _prepareMenu
|
|
* @private
|
|
* @function
|
|
*/
|
|
_init() {
|
|
var subs = this.$element.find('li.is-dropdown-submenu-parent');
|
|
this.$element.children('.is-dropdown-submenu-parent').children('.is-dropdown-submenu').addClass('first-sub');
|
|
|
|
this.$menuItems = this.$element.find('[role="menuitem"]');
|
|
this.$tabs = this.$element.children('[role="menuitem"]');
|
|
this.$tabs.find('ul.is-dropdown-submenu').addClass(this.options.verticalClass);
|
|
|
|
if (this.$element.hasClass(this.options.rightClass) || this.options.alignment === 'right' || Foundation.rtl() || this.$element.parents('.top-bar-right').is('*')) {
|
|
this.options.alignment = 'right';
|
|
subs.addClass('opens-left');
|
|
} else {
|
|
subs.addClass('opens-right');
|
|
}
|
|
this.changed = false;
|
|
this._events();
|
|
};
|
|
/**
|
|
* Adds event listeners to elements within the menu
|
|
* @private
|
|
* @function
|
|
*/
|
|
_events() {
|
|
var _this = this,
|
|
hasTouch = 'ontouchstart' in window || (typeof window.ontouchstart !== 'undefined'),
|
|
parClass = 'is-dropdown-submenu-parent';
|
|
|
|
// used for onClick and in the keyboard handlers
|
|
var handleClickFn = function(e) {
|
|
var $elem = $(e.target).parentsUntil('ul', `.${parClass}`),
|
|
hasSub = $elem.hasClass(parClass),
|
|
hasClicked = $elem.attr('data-is-click') === 'true',
|
|
$sub = $elem.children('.is-dropdown-submenu');
|
|
|
|
if (hasSub) {
|
|
if (hasClicked) {
|
|
if (!_this.options.closeOnClick || (!_this.options.clickOpen && !hasTouch) || (_this.options.forceFollow && hasTouch)) { return; }
|
|
else {
|
|
e.stopImmediatePropagation();
|
|
e.preventDefault();
|
|
_this._hide($elem);
|
|
}
|
|
} else {
|
|
e.preventDefault();
|
|
e.stopImmediatePropagation();
|
|
_this._show($elem.children('.is-dropdown-submenu'));
|
|
$elem.add($elem.parentsUntil(_this.$element, `.${parClass}`)).attr('data-is-click', true);
|
|
}
|
|
} else { return; }
|
|
};
|
|
|
|
if (this.options.clickOpen || hasTouch) {
|
|
this.$menuItems.on('click.zf.dropdownmenu touchstart.zf.dropdownmenu', handleClickFn);
|
|
}
|
|
|
|
if (!this.options.disableHover) {
|
|
this.$menuItems.on('mouseenter.zf.dropdownmenu', function(e) {
|
|
var $elem = $(this),
|
|
hasSub = $elem.hasClass(parClass);
|
|
|
|
if (hasSub) {
|
|
clearTimeout(_this.delay);
|
|
_this.delay = setTimeout(function() {
|
|
_this._show($elem.children('.is-dropdown-submenu'));
|
|
}, _this.options.hoverDelay);
|
|
}
|
|
}).on('mouseleave.zf.dropdownmenu', function(e) {
|
|
var $elem = $(this),
|
|
hasSub = $elem.hasClass(parClass);
|
|
if (hasSub && _this.options.autoclose) {
|
|
if ($elem.attr('data-is-click') === 'true' && _this.options.clickOpen) { return false; }
|
|
|
|
clearTimeout(_this.delay);
|
|
_this.delay = setTimeout(function() {
|
|
_this._hide($elem);
|
|
}, _this.options.closingTime);
|
|
}
|
|
});
|
|
}
|
|
this.$menuItems.on('keydown.zf.dropdownmenu', function(e) {
|
|
var $element = $(e.target).parentsUntil('ul', '[role="menuitem"]'),
|
|
isTab = _this.$tabs.index($element) > -1,
|
|
$elements = isTab ? _this.$tabs : $element.siblings('li').add($element),
|
|
$prevElement,
|
|
$nextElement;
|
|
|
|
$elements.each(function(i) {
|
|
if ($(this).is($element)) {
|
|
$prevElement = $elements.eq(i-1);
|
|
$nextElement = $elements.eq(i+1);
|
|
return;
|
|
}
|
|
});
|
|
|
|
var nextSibling = function() {
|
|
if (!$element.is(':last-child')) {
|
|
$nextElement.children('a:first').focus();
|
|
e.preventDefault();
|
|
}
|
|
}, prevSibling = function() {
|
|
$prevElement.children('a:first').focus();
|
|
e.preventDefault();
|
|
}, openSub = function() {
|
|
var $sub = $element.children('ul.is-dropdown-submenu');
|
|
if ($sub.length) {
|
|
_this._show($sub);
|
|
$element.find('li > a:first').focus();
|
|
e.preventDefault();
|
|
} else { return; }
|
|
}, closeSub = function() {
|
|
//if ($element.is(':first-child')) {
|
|
var close = $element.parent('ul').parent('li');
|
|
close.children('a:first').focus();
|
|
_this._hide(close);
|
|
e.preventDefault();
|
|
//}
|
|
};
|
|
var functions = {
|
|
open: openSub,
|
|
close: function() {
|
|
_this._hide(_this.$element);
|
|
_this.$menuItems.find('a:first').focus(); // focus to first element
|
|
e.preventDefault();
|
|
},
|
|
handled: function() {
|
|
e.stopImmediatePropagation();
|
|
}
|
|
};
|
|
|
|
if (isTab) {
|
|
if (_this.$element.hasClass(_this.options.verticalClass)) { // vertical menu
|
|
if (_this.options.alignment === 'left') { // left aligned
|
|
$.extend(functions, {
|
|
down: nextSibling,
|
|
up: prevSibling,
|
|
next: openSub,
|
|
previous: closeSub
|
|
});
|
|
} else { // right aligned
|
|
$.extend(functions, {
|
|
down: nextSibling,
|
|
up: prevSibling,
|
|
next: closeSub,
|
|
previous: openSub
|
|
});
|
|
}
|
|
} else { // horizontal menu
|
|
$.extend(functions, {
|
|
next: nextSibling,
|
|
previous: prevSibling,
|
|
down: openSub,
|
|
up: closeSub
|
|
});
|
|
}
|
|
} else { // not tabs -> one sub
|
|
if (_this.options.alignment === 'left') { // left aligned
|
|
$.extend(functions, {
|
|
next: openSub,
|
|
previous: closeSub,
|
|
down: nextSibling,
|
|
up: prevSibling
|
|
});
|
|
} else { // right aligned
|
|
$.extend(functions, {
|
|
next: closeSub,
|
|
previous: openSub,
|
|
down: nextSibling,
|
|
up: prevSibling
|
|
});
|
|
}
|
|
}
|
|
Foundation.Keyboard.handleKey(e, 'DropdownMenu', functions);
|
|
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Adds an event handler to the body to close any dropdowns on a click.
|
|
* @function
|
|
* @private
|
|
*/
|
|
_addBodyHandler() {
|
|
var $body = $(document.body),
|
|
_this = this;
|
|
$body.off('mouseup.zf.dropdownmenu touchend.zf.dropdownmenu')
|
|
.on('mouseup.zf.dropdownmenu touchend.zf.dropdownmenu', function(e) {
|
|
var $link = _this.$element.find(e.target);
|
|
if ($link.length) { return; }
|
|
|
|
_this._hide();
|
|
$body.off('mouseup.zf.dropdownmenu touchend.zf.dropdownmenu');
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Opens a dropdown pane, and checks for collisions first.
|
|
* @param {jQuery} $sub - ul element that is a submenu to show
|
|
* @function
|
|
* @private
|
|
* @fires DropdownMenu#show
|
|
*/
|
|
_show($sub) {
|
|
var idx = this.$tabs.index(this.$tabs.filter(function(i, el) {
|
|
return $(el).find($sub).length > 0;
|
|
}));
|
|
var $sibs = $sub.parent('li.is-dropdown-submenu-parent').siblings('li.is-dropdown-submenu-parent');
|
|
this._hide($sibs, idx);
|
|
$sub.css('visibility', 'hidden').addClass('js-dropdown-active').attr({'aria-hidden': false})
|
|
.parent('li.is-dropdown-submenu-parent').addClass('is-active')
|
|
.attr({'aria-expanded': true});
|
|
var clear = Foundation.Box.ImNotTouchingYou($sub, null, true);
|
|
if (!clear) {
|
|
var oldClass = this.options.alignment === 'left' ? '-right' : '-left',
|
|
$parentLi = $sub.parent('.is-dropdown-submenu-parent');
|
|
$parentLi.removeClass(`opens${oldClass}`).addClass(`opens-${this.options.alignment}`);
|
|
clear = Foundation.Box.ImNotTouchingYou($sub, null, true);
|
|
if (!clear) {
|
|
$parentLi.removeClass(`opens-${this.options.alignment}`).addClass('opens-inner');
|
|
}
|
|
this.changed = true;
|
|
}
|
|
$sub.css('visibility', '');
|
|
if (this.options.closeOnClick) { this._addBodyHandler(); }
|
|
/**
|
|
* Fires when the new dropdown pane is visible.
|
|
* @event DropdownMenu#show
|
|
*/
|
|
this.$element.trigger('show.zf.dropdownmenu', [$sub]);
|
|
}
|
|
|
|
/**
|
|
* Hides a single, currently open dropdown pane, if passed a parameter, otherwise, hides everything.
|
|
* @function
|
|
* @param {jQuery} $elem - element with a submenu to hide
|
|
* @param {Number} idx - index of the $tabs collection to hide
|
|
* @private
|
|
*/
|
|
_hide($elem, idx) {
|
|
var $toClose;
|
|
if ($elem && $elem.length) {
|
|
$toClose = $elem;
|
|
} else if (idx !== undefined) {
|
|
$toClose = this.$tabs.not(function(i, el) {
|
|
return i === idx;
|
|
});
|
|
}
|
|
else {
|
|
$toClose = this.$element;
|
|
}
|
|
var somethingToClose = $toClose.hasClass('is-active') || $toClose.find('.is-active').length > 0;
|
|
|
|
if (somethingToClose) {
|
|
$toClose.find('li.is-active').add($toClose).attr({
|
|
'aria-expanded': false,
|
|
'data-is-click': false
|
|
}).removeClass('is-active');
|
|
|
|
$toClose.find('ul.js-dropdown-active').attr({
|
|
'aria-hidden': true
|
|
}).removeClass('js-dropdown-active');
|
|
|
|
if (this.changed || $toClose.find('opens-inner').length) {
|
|
var oldClass = this.options.alignment === 'left' ? 'right' : 'left';
|
|
$toClose.find('li.is-dropdown-submenu-parent').add($toClose)
|
|
.removeClass(`opens-inner opens-${this.options.alignment}`)
|
|
.addClass(`opens-${oldClass}`);
|
|
this.changed = false;
|
|
}
|
|
/**
|
|
* Fires when the open menus are closed.
|
|
* @event DropdownMenu#hide
|
|
*/
|
|
this.$element.trigger('hide.zf.dropdownmenu', [$toClose]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Destroys the plugin.
|
|
* @function
|
|
*/
|
|
destroy() {
|
|
this.$menuItems.off('.zf.dropdownmenu').removeAttr('data-is-click')
|
|
.removeClass('is-right-arrow is-left-arrow is-down-arrow opens-right opens-left opens-inner');
|
|
$(document.body).off('.zf.dropdownmenu');
|
|
Foundation.Nest.Burn(this.$element, 'dropdown');
|
|
Foundation.unregisterPlugin(this);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Default settings for plugin
|
|
*/
|
|
DropdownMenu.defaults = {
|
|
/**
|
|
* Disallows hover events from opening submenus
|
|
* @option
|
|
* @example false
|
|
*/
|
|
disableHover: false,
|
|
/**
|
|
* Allow a submenu to automatically close on a mouseleave event, if not clicked open.
|
|
* @option
|
|
* @example true
|
|
*/
|
|
autoclose: true,
|
|
/**
|
|
* Amount of time to delay opening a submenu on hover event.
|
|
* @option
|
|
* @example 50
|
|
*/
|
|
hoverDelay: 50,
|
|
/**
|
|
* Allow a submenu to open/remain open on parent click event. Allows cursor to move away from menu.
|
|
* @option
|
|
* @example true
|
|
*/
|
|
clickOpen: false,
|
|
/**
|
|
* Amount of time to delay closing a submenu on a mouseleave event.
|
|
* @option
|
|
* @example 500
|
|
*/
|
|
|
|
closingTime: 500,
|
|
/**
|
|
* Position of the menu relative to what direction the submenus should open. Handled by JS.
|
|
* @option
|
|
* @example 'left'
|
|
*/
|
|
alignment: 'left',
|
|
/**
|
|
* Allow clicks on the body to close any open submenus.
|
|
* @option
|
|
* @example true
|
|
*/
|
|
closeOnClick: true,
|
|
/**
|
|
* Class applied to vertical oriented menus, Foundation default is `vertical`. Update this if using your own class.
|
|
* @option
|
|
* @example 'vertical'
|
|
*/
|
|
verticalClass: 'vertical',
|
|
/**
|
|
* Class applied to right-side oriented menus, Foundation default is `align-right`. Update this if using your own class.
|
|
* @option
|
|
* @example 'align-right'
|
|
*/
|
|
rightClass: 'align-right',
|
|
/**
|
|
* Boolean to force overide the clicking of links to perform default action, on second touch event for mobile.
|
|
* @option
|
|
* @example false
|
|
*/
|
|
forceFollow: true
|
|
};
|
|
|
|
// Window exports
|
|
Foundation.plugin(DropdownMenu, 'DropdownMenu');
|
|
|
|
}(jQuery);
|