348 lines
10 KiB
JavaScript
348 lines
10 KiB
JavaScript
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'use strict';
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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; }; }();
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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!function ($) {
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/**
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* Tabs module.
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* @module foundation.tabs
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* @requires foundation.util.keyboard
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* @requires foundation.util.timerAndImageLoader if tabs contain images
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*/
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var Tabs = function () {
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/**
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* Creates a new instance of tabs.
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* @class
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* @fires Tabs#init
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* @param {jQuery} element - jQuery object to make into tabs.
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* @param {Object} options - Overrides to the default plugin settings.
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*/
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function Tabs(element, options) {
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_classCallCheck(this, Tabs);
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this.$element = element;
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this.options = $.extend({}, Tabs.defaults, this.$element.data(), options);
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this._init();
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Foundation.registerPlugin(this, 'Tabs');
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Foundation.Keyboard.register('Tabs', {
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'ENTER': 'open',
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'SPACE': 'open',
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'ARROW_RIGHT': 'next',
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'ARROW_UP': 'previous',
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'ARROW_DOWN': 'next',
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'ARROW_LEFT': 'previous'
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// 'TAB': 'next',
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// 'SHIFT_TAB': 'previous'
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});
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}
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/**
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* Initializes the tabs by showing and focusing (if autoFocus=true) the preset active tab.
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* @private
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*/
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_createClass(Tabs, [{
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key: '_init',
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value: function _init() {
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var _this = this;
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this.$tabTitles = this.$element.find('.' + this.options.linkClass);
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this.$tabContent = $('[data-tabs-content="' + this.$element[0].id + '"]');
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this.$tabTitles.each(function () {
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var $elem = $(this),
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$link = $elem.find('a'),
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isActive = $elem.hasClass('is-active'),
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hash = $link[0].hash.slice(1),
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linkId = $link[0].id ? $link[0].id : hash + '-label',
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$tabContent = $('#' + hash);
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$elem.attr({ 'role': 'presentation' });
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$link.attr({
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'role': 'tab',
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'aria-controls': hash,
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'aria-selected': isActive,
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'id': linkId
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});
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$tabContent.attr({
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'role': 'tabpanel',
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'aria-hidden': !isActive,
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'aria-labelledby': linkId
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});
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if (isActive && _this.options.autoFocus) {
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$link.focus();
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}
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});
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if (this.options.matchHeight) {
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var $images = this.$tabContent.find('img');
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if ($images.length) {
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Foundation.onImagesLoaded($images, this._setHeight.bind(this));
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} else {
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this._setHeight();
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}
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}
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this._events();
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}
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/**
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* Adds event handlers for items within the tabs.
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* @private
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*/
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}, {
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key: '_events',
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value: function _events() {
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this._addKeyHandler();
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this._addClickHandler();
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this._setHeightMqHandler = null;
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if (this.options.matchHeight) {
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this._setHeightMqHandler = this._setHeight.bind(this);
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$(window).on('changed.zf.mediaquery', this._setHeightMqHandler);
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}
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}
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/**
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* Adds click handlers for items within the tabs.
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* @private
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*/
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}, {
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key: '_addClickHandler',
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value: function _addClickHandler() {
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var _this = this;
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this.$element.off('click.zf.tabs').on('click.zf.tabs', '.' + this.options.linkClass, function (e) {
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e.preventDefault();
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e.stopPropagation();
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if ($(this).hasClass('is-active')) {
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return;
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}
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_this._handleTabChange($(this));
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});
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}
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/**
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* Adds keyboard event handlers for items within the tabs.
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* @private
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*/
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}, {
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key: '_addKeyHandler',
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value: function _addKeyHandler() {
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var _this = this;
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var $firstTab = _this.$element.find('li:first-of-type');
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var $lastTab = _this.$element.find('li:last-of-type');
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this.$tabTitles.off('keydown.zf.tabs').on('keydown.zf.tabs', function (e) {
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if (e.which === 9) return;
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var $element = $(this),
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$elements = $element.parent('ul').children('li'),
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$prevElement,
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$nextElement;
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$elements.each(function (i) {
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if ($(this).is($element)) {
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if (_this.options.wrapOnKeys) {
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$prevElement = i === 0 ? $elements.last() : $elements.eq(i - 1);
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$nextElement = i === $elements.length - 1 ? $elements.first() : $elements.eq(i + 1);
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} else {
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$prevElement = $elements.eq(Math.max(0, i - 1));
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$nextElement = $elements.eq(Math.min(i + 1, $elements.length - 1));
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}
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return;
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}
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});
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// handle keyboard event with keyboard util
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Foundation.Keyboard.handleKey(e, 'Tabs', {
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open: function () {
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$element.find('[role="tab"]').focus();
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_this._handleTabChange($element);
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},
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previous: function () {
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$prevElement.find('[role="tab"]').focus();
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_this._handleTabChange($prevElement);
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},
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next: function () {
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$nextElement.find('[role="tab"]').focus();
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_this._handleTabChange($nextElement);
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},
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handled: function () {
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e.stopPropagation();
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e.preventDefault();
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}
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});
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});
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}
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/**
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* Opens the tab `$targetContent` defined by `$target`.
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* @param {jQuery} $target - Tab to open.
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* @fires Tabs#change
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* @function
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*/
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}, {
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key: '_handleTabChange',
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value: function _handleTabChange($target) {
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var $tabLink = $target.find('[role="tab"]'),
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hash = $tabLink[0].hash,
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$targetContent = this.$tabContent.find(hash),
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$oldTab = this.$element.find('.' + this.options.linkClass + '.is-active').removeClass('is-active').find('[role="tab"]').attr({ 'aria-selected': 'false' });
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$('#' + $oldTab.attr('aria-controls')).removeClass('is-active').attr({ 'aria-hidden': 'true' });
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$target.addClass('is-active');
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$tabLink.attr({ 'aria-selected': 'true' });
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$targetContent.addClass('is-active').attr({ 'aria-hidden': 'false' });
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/**
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* Fires when the plugin has successfully changed tabs.
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* @event Tabs#change
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*/
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this.$element.trigger('change.zf.tabs', [$target]);
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}
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/**
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* Public method for selecting a content pane to display.
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* @param {jQuery | String} elem - jQuery object or string of the id of the pane to display.
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* @function
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*/
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}, {
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key: 'selectTab',
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value: function selectTab(elem) {
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var idStr;
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if (typeof elem === 'object') {
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idStr = elem[0].id;
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} else {
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idStr = elem;
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}
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if (idStr.indexOf('#') < 0) {
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idStr = '#' + idStr;
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}
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var $target = this.$tabTitles.find('[href="' + idStr + '"]').parent('.' + this.options.linkClass);
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this._handleTabChange($target);
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}
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}, {
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key: '_setHeight',
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/**
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* Sets the height of each panel to the height of the tallest panel.
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* If enabled in options, gets called on media query change.
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* If loading content via external source, can be called directly or with _reflow.
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* @function
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* @private
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*/
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value: function _setHeight() {
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var max = 0;
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this.$tabContent.find('.' + this.options.panelClass).css('height', '').each(function () {
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var panel = $(this),
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isActive = panel.hasClass('is-active');
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if (!isActive) {
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panel.css({ 'visibility': 'hidden', 'display': 'block' });
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}
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var temp = this.getBoundingClientRect().height;
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if (!isActive) {
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panel.css({
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'visibility': '',
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'display': ''
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});
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}
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max = temp > max ? temp : max;
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}).css('height', max + 'px');
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}
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/**
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* Destroys an instance of an tabs.
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* @fires Tabs#destroyed
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*/
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}, {
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key: 'destroy',
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value: function destroy() {
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this.$element.find('.' + this.options.linkClass).off('.zf.tabs').hide().end().find('.' + this.options.panelClass).hide();
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if (this.options.matchHeight) {
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if (this._setHeightMqHandler != null) {
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$(window).off('changed.zf.mediaquery', this._setHeightMqHandler);
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}
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}
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Foundation.unregisterPlugin(this);
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}
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}]);
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return Tabs;
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}();
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Tabs.defaults = {
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/**
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* Allows the window to scroll to content of active pane on load if set to true.
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* @option
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* @example false
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*/
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autoFocus: false,
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/**
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* Allows keyboard input to 'wrap' around the tab links.
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* @option
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* @example true
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*/
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wrapOnKeys: true,
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/**
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* Allows the tab content panes to match heights if set to true.
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* @option
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* @example false
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*/
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matchHeight: false,
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/**
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* Class applied to `li`'s in tab link list.
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* @option
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* @example 'tabs-title'
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*/
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linkClass: 'tabs-title',
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/**
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* Class applied to the content containers.
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* @option
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* @example 'tabs-panel'
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*/
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panelClass: 'tabs-panel'
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};
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function checkClass($elem) {
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return $elem.hasClass('is-active');
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}
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// Window exports
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Foundation.plugin(Tabs, 'Tabs');
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}(jQuery);
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