$(‘.tab_menu’) .off(‘click.productPageTabMenu’, ‘.tab_menu_item’) .on(‘click.productPageTabMenu’, ‘.tab_menu_item’, function () { var self = $(this), tabMenu = self.closest(‘.tab_menu’), scrollBox = tabMenu.find(‘.scroll_content’), index = self.index(); self.addClass(‘active’).siblings().removeClass(‘active’); tabMenu.find(‘.tab_menu_content_item’).eq(index).addClass(‘active’).siblings().removeClass(‘active’); if (scrollBox.length) { scrollTabItemIntoView(scrollBox, self); } }); function scrollTabItemIntoView(scrollBox, targetItem) { var scrollEl = scrollBox[0], itemEl = targetItem[0], containerRect = scrollEl.getBoundingClientRect(), itemRect = itemEl.getBoundingClientRect(), itemCenter = itemRect.left + itemRect.width / 2, containerCenter = containerRect.left + containerRect.width / 2, targetScrollLeft = scrollEl.scrollLeft + (itemCenter – containerCenter), maxScrollLeft = scrollEl.scrollWidth – scrollEl.clientWidth; if (targetScrollLeft < 0) targetScrollLeft = 0; if (targetScrollLeft > maxScrollLeft) targetScrollLeft = maxScrollLeft; scrollBox.stop().animate({ scrollLeft: targetScrollLeft }, 220); } $(‘.tab_menu’) .off(‘click.productPageTabMenu’, ‘.tab_icon’) .on(‘click.productPageTabMenu’, ‘.tab_icon’, function () { var self = $(this), tabMenu = self.closest(‘.tab_menu’), menuItems = tabMenu.find(‘.tab_menu_item’), activeItem = menuItems.filter(‘.active’).first(), activeIndex = activeItem.length ? menuItems.index(activeItem) : 0, targetIndex = self.hasClass(‘tab_icon_next’) ? activeIndex + 1 : activeIndex – 1, maxIndex = menuItems.length – 1, targetItem, scrollBox; if (targetIndex < 0 || targetIndex > maxIndex) return; targetItem = menuItems.eq(targetIndex); scrollBox = tabMenu.find(‘.scroll_content’); targetItem.trigger(‘click’); if (scrollBox.length) { scrollTabItemIntoView(scrollBox, targetItem); } }); $(‘.tab_menu’) .off(‘click.productPageTabMenu’, ‘.list_content_item’) .on(‘click.productPageTabMenu’, ‘.list_content_item’, function () { var self = $(this), index = self.index(), scrollHeight = self.find(‘.list_content_item_content’)[0].scrollHeight; if (document.body.clientWidth < 768 && self.hasClass('active')) { self.removeClass('active'); self.find('.list_content_item_content').css('height', '0'); return; } self.addClass('active').siblings().removeClass('active'); self.find('.list_content_item_content').css('height', scrollHeight + 'px'); self.siblings().find('.list_content_item_content').css('height', '0'); self .closest('.list_content_block') .find('.list_content_img_item') .eq(index) .addClass('active') .siblings() .removeClass('active'); });