'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 ($) {
/**
* Tabs module.
* @module foundation.tabs
* @requires foundation.util.keyboard
* @requires foundation.util.timerAndImageLoader if tabs contain images
*/
var Tabs = function () {
/**
* Creates a new instance of tabs.
* @class
* @fires Tabs#init
* @param {jQuery} element - jQuery object to make into tabs.
* @param {Object} options - Overrides to the default plugin settings.
*/
function Tabs(element, options) {
_classCallCheck(this, Tabs);
this.$element = element;
this.options = $.extend({}, Tabs.defaults, this.$element.data(), options);
this._init();
Foundation.registerPlugin(this, 'Tabs');
Foundation.Keyboard.register('Tabs', {
'ENTER': 'open',
'SPACE': 'open',
'ARROW_RIGHT': 'next',
'ARROW_UP': 'previous',
'ARROW_DOWN': 'next',
'ARROW_LEFT': 'previous'
// 'TAB': 'next',
// 'SHIFT_TAB': 'previous'
});
}
/**
* Initializes the tabs by showing and focusing (if autoFocus=true) the preset active tab.
* @private
*/
_createClass(Tabs, [{
key: '_init',
value: function _init() {
var _this = this;
this.$element.attr({ 'role': 'tablist' });
this.$tabTitles = this.$element.find('.' + this.options.linkClass);
this.$tabContent = $('[data-tabs-content="' + this.$element[0].id + '"]');
this.$tabTitles.each(function () {
var $elem = $(this),
$link = $elem.find('a'),
isActive = $elem.hasClass('' + _this.options.linkActiveClass),
hash = $link[0].hash.slice(1),
linkId = $link[0].id ? $link[0].id : hash + '-label',
$tabContent = $('#' + hash);
$elem.attr({ 'role': 'presentation' });
$link.attr({
'role': 'tab',
'aria-controls': hash,
'aria-selected': isActive,
'id': linkId
});
$tabContent.attr({
'role': 'tabpanel',
'aria-hidden': !isActive,
'aria-labelledby': linkId
});
if (isActive && _this.options.autoFocus) {
$(window).load(function () {
$('html, body').animate({ scrollTop: $elem.offset().top }, _this.options.deepLinkSmudgeDelay, function () {
$link.focus();
});
});
}
//use browser to open a tab, if it exists in this tabset
if (_this.options.deepLink) {
var anchor = window.location.hash;
//need a hash and a relevant anchor in this tabset
if (anchor.length) {
var $link = $elem.find('[href="' + anchor + '"]');
if ($link.length) {
_this.selectTab($(anchor));
//roll up a little to show the titles
if (_this.options.deepLinkSmudge) {
$(window).load(function () {
var offset = $elem.offset();
$('html, body').animate({ scrollTop: offset.top }, _this.options.deepLinkSmudgeDelay);
});
}
/**
* Fires when the zplugin has deeplinked at pageload
* @event Tabs#deeplink
*/
$elem.trigger('deeplink.zf.tabs', [$link, $(anchor)]);
}
}
}
});
if (this.options.matchHeight) {
var $images = this.$tabContent.find('img');
if ($images.length) {
Foundation.onImagesLoaded($images, this._setHeight.bind(this));
} else {
this._setHeight();
}
}
this._events();
}
/**
* Adds event handlers for items within the tabs.
* @private
*/
}, {
key: '_events',
value: function _events() {
this._addKeyHandler();
this._addClickHandler();
this._setHeightMqHandler = null;
if (this.options.matchHeight) {
this._setHeightMqHandler = this._setHeight.bind(this);
$(window).on('changed.zf.mediaquery', this._setHeightMqHandler);
}
}
/**
* Adds click handlers for items within the tabs.
* @private
*/
}, {
key: '_addClickHandler',
value: function _addClickHandler() {
var _this = this;
this.$element.off('click.zf.tabs').on('click.zf.tabs', '.' + this.options.linkClass, function (e) {
e.preventDefault();
e.stopPropagation();
_this._handleTabChange($(this));
});
}
/**
* Adds keyboard event handlers for items within the tabs.
* @private
*/
}, {
key: '_addKeyHandler',
value: function _addKeyHandler() {
var _this = this;
this.$tabTitles.off('keydown.zf.tabs').on('keydown.zf.tabs', function (e) {
if (e.which === 9) return;
var $element = $(this),
$elements = $element.parent('ul').children('li'),
$prevElement,
$nextElement;
$elements.each(function (i) {
if ($(this).is($element)) {
if (_this.options.wrapOnKeys) {
$prevElement = i === 0 ? $elements.last() : $elements.eq(i - 1);
$nextElement = i === $elements.length - 1 ? $elements.first() : $elements.eq(i + 1);
} else {
$prevElement = $elements.eq(Math.max(0, i - 1));
$nextElement = $elements.eq(Math.min(i + 1, $elements.length - 1));
}
return;
}
});
// handle keyboard event with keyboard util
Foundation.Keyboard.handleKey(e, 'Tabs', {
open: function () {
$element.find('[role="tab"]').focus();
_this._handleTabChange($element);
},
previous: function () {
$prevElement.find('[role="tab"]').focus();
_this._handleTabChange($prevElement);
},
next: function () {
$nextElement.find('[role="tab"]').focus();
_this._handleTabChange($nextElement);
},
handled: function () {
e.stopPropagation();
e.preventDefault();
}
});
});
}
/**
* Opens the tab `$targetContent` defined by `$target`. Collapses active tab.
* @param {jQuery} $target - Tab to open.
* @fires Tabs#change
* @function
*/
}, {
key: '_handleTabChange',
value: function _handleTabChange($target) {
/**
* Check for active class on target. Collapse if exists.
*/
if ($target.hasClass('' + this.options.linkActiveClass)) {
if (this.options.activeCollapse) {
this._collapseTab($target);
/**
* Fires when the zplugin has successfully collapsed tabs.
* @event Tabs#collapse
*/
this.$element.trigger('collapse.zf.tabs', [$target]);
}
return;
}
var $oldTab = this.$element.find('.' + this.options.linkClass + '.' + this.options.linkActiveClass),
$tabLink = $target.find('[role="tab"]'),
hash = $tabLink[0].hash,
$targetContent = this.$tabContent.find(hash);
//close old tab
this._collapseTab($oldTab);
//open new tab
this._openTab($target);
//either replace or update browser history
if (this.options.deepLink) {
var anchor = $target.find('a').attr('href');
if (this.options.updateHistory) {
history.pushState({}, '', anchor);
} else {
history.replaceState({}, '', anchor);
}
}
/**
* Fires when the plugin has successfully changed tabs.
* @event Tabs#change
*/
this.$element.trigger('change.zf.tabs', [$target, $targetContent]);
//fire to children a mutation event
$targetContent.find("[data-mutate]").trigger("mutateme.zf.trigger");
}
/**
* Opens the tab `$targetContent` defined by `$target`.
* @param {jQuery} $target - Tab to Open.
* @function
*/
}, {
key: '_openTab',
value: function _openTab($target) {
var $tabLink = $target.find('[role="tab"]'),
hash = $tabLink[0].hash,
$targetContent = this.$tabContent.find(hash);
$target.addClass('' + this.options.linkActiveClass);
$tabLink.attr({ 'aria-selected': 'true' });
$targetContent.addClass('' + this.options.panelActiveClass).attr({ 'aria-hidden': 'false' });
}
/**
* Collapses `$targetContent` defined by `$target`.
* @param {jQuery} $target - Tab to Open.
* @function
*/
}, {
key: '_collapseTab',
value: function _collapseTab($target) {
var $target_anchor = $target.removeClass('' + this.options.linkActiveClass).find('[role="tab"]').attr({ 'aria-selected': 'false' });
$('#' + $target_anchor.attr('aria-controls')).removeClass('' + this.options.panelActiveClass).attr({ 'aria-hidden': 'true' });
}
/**
* Public method for selecting a content pane to display.
* @param {jQuery | String} elem - jQuery object or string of the id of the pane to display.
* @function
*/
}, {
key: 'selectTab',
value: function selectTab(elem) {
var idStr;
if (typeof elem === 'object') {
idStr = elem[0].id;
} else {
idStr = elem;
}
if (idStr.indexOf('#') < 0) {
idStr = '#' + idStr;
}
var $target = this.$tabTitles.find('[href="' + idStr + '"]').parent('.' + this.options.linkClass);
this._handleTabChange($target);
}
}, {
key: '_setHeight',
/**
* Sets the height of each panel to the height of the tallest panel.
* If enabled in options, gets called on media query change.
* If loading content via external source, can be called directly or with _reflow.
* @function
* @private
*/
value: function _setHeight() {
var max = 0;
this.$tabContent.find('.' + this.options.panelClass).css('height', '').each(function () {
var panel = $(this),
isActive = panel.hasClass('' + this.options.panelActiveClass);
if (!isActive) {
panel.css({ 'visibility': 'hidden', 'display': 'block' });
}
var temp = this.getBoundingClientRect().height;
if (!isActive) {
panel.css({
'visibility': '',
'display': ''
});
}
max = temp > max ? temp : max;
}).css('height', max + 'px');
}
/**
* Destroys an instance of an tabs.
* @fires Tabs#destroyed
*/
}, {
key: 'destroy',
value: function destroy() {
this.$element.find('.' + this.options.linkClass).off('.zf.tabs').hide().end().find('.' + this.options.panelClass).hide();
if (this.options.matchHeight) {
if (this._setHeightMqHandler != null) {
$(window).off('changed.zf.mediaquery', this._setHeightMqHandler);
}
}
Foundation.unregisterPlugin(this);
}
}]);
return Tabs;
}();
Tabs.defaults = {
/**
* Allows the window to scroll to content of pane specified by hash anchor
* @option
* @example false
*/
deepLink: false,
/**
* Adjust the deep link scroll to make sure the top of the tab panel is visible
* @option
* @example false
*/
deepLinkSmudge: false,
/**
* Animation time (ms) for the deep link adjustment
* @option
* @example 300
*/
deepLinkSmudgeDelay: 300,
/**
* Update the browser history with the open tab
* @option
* @example false
*/
updateHistory: false,
/**
* Allows the window to scroll to content of active pane on load if set to true.
* Not recommended if more than one tab panel per page.
* @option
* @example false
*/
autoFocus: false,
/**
* Allows keyboard input to 'wrap' around the tab links.
* @option
* @example true
*/
wrapOnKeys: true,
/**
* Allows the tab content panes to match heights if set to true.
* @option
* @example false
*/
matchHeight: false,
/**
* Allows active tabs to collapse when clicked.
* @option
* @example false
*/
activeCollapse: false,
/**
* Class applied to `li`'s in tab link list.
* @option
* @example 'tabs-title'
*/
linkClass: 'tabs-title',
/**
* Class applied to the active `li` in tab link list.
* @option
* @example 'is-active'
*/
linkActiveClass: 'is-active',
/**
* Class applied to the content containers.
* @option
* @example 'tabs-panel'
*/
panelClass: 'tabs-panel',
/**
* Class applied to the active content container.
* @option
* @example 'is-active'
*/
panelActiveClass: 'is-active'
};
// Window exports
Foundation.plugin(Tabs, 'Tabs');
}(jQuery);
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