58 lines
1.8 KiB
JavaScript
58 lines
1.8 KiB
JavaScript
import $ from 'jquery';
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import ContextualSidebar from './contextual_sidebar';
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import initFlyOutNav from './fly_out_nav';
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function hideEndFade($scrollingTabs) {
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$scrollingTabs.each(function scrollTabsLoop() {
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const $this = $(this);
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$this
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.siblings('.fade-right')
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.toggleClass('scrolling', Math.round($this.width()) < $this.prop('scrollWidth'));
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});
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}
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export default function initLayoutNav() {
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const contextualSidebar = new ContextualSidebar();
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contextualSidebar.bindEvents();
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initFlyOutNav();
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$(document)
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.on('init.scrolling-tabs', () => {
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const $scrollingTabs = $('.scrolling-tabs').not('.is-initialized');
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$scrollingTabs.addClass('is-initialized');
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$(window)
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.on('resize.nav', () => {
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hideEndFade($scrollingTabs);
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})
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.trigger('resize.nav');
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$scrollingTabs.on('scroll', function tabsScrollEvent() {
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const $this = $(this);
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const currentPosition = $this.scrollLeft();
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const maxPosition = $this.prop('scrollWidth') - $this.outerWidth();
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$this.siblings('.fade-left').toggleClass('scrolling', currentPosition > 0);
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$this.siblings('.fade-right').toggleClass('scrolling', currentPosition < maxPosition - 1);
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});
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$scrollingTabs.each(function scrollTabsEachLoop() {
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const $this = $(this);
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const scrollingTabWidth = $this.width();
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const $active = $this.find('.active');
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const activeWidth = $active.width();
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if ($active.length) {
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const offset = $active.offset().left + activeWidth;
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if (offset > scrollingTabWidth - 30) {
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const scrollLeft = offset - scrollingTabWidth / 2 - activeWidth / 2;
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$this.scrollLeft(scrollLeft);
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}
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}
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});
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})
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.trigger('init.scrolling-tabs');
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}
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