gitlab-org--gitlab-foss/app/assets/javascripts/contextual_sidebar.js
Luke Bennett 0705acd66c
Fix flyout nav on small viewports
Decouples sidebar collapsed style from
behavior.
2019-05-15 15:41:00 +01:00

114 lines
3.7 KiB
JavaScript

import $ from 'jquery';
import Cookies from 'js-cookie';
import _ from 'underscore';
import bp from './breakpoints';
import { parseBoolean } from '~/lib/utils/common_utils';
// NOTE: at 1200px nav sidebar should not overlap the content
// https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24555#note_134136110
const NAV_SIDEBAR_BREAKPOINT = 1200;
export const SIDEBAR_COLLAPSED_CLASS = 'js-sidebar-collapsed';
export default class ContextualSidebar {
constructor() {
this.initDomElements();
this.render();
}
initDomElements() {
this.$page = $('.layout-page');
this.$sidebar = $('.nav-sidebar');
if (!this.$sidebar.length) return;
this.$innerScroll = $('.nav-sidebar-inner-scroll', this.$sidebar);
this.$overlay = $('.mobile-overlay');
this.$openSidebar = $('.toggle-mobile-nav');
this.$closeSidebar = $('.close-nav-button');
this.$sidebarToggle = $('.js-toggle-sidebar');
}
bindEvents() {
if (!this.$sidebar.length) return;
this.$openSidebar.on('click', () => this.toggleSidebarNav(true));
this.$closeSidebar.on('click', () => this.toggleSidebarNav(false));
this.$overlay.on('click', () => this.toggleSidebarNav(false));
this.$sidebarToggle.on('click', () => {
if (!ContextualSidebar.isDesktopBreakpoint()) {
this.toggleSidebarNav(!this.$sidebar.hasClass('sidebar-expanded-mobile'));
} else {
const value = !this.$sidebar.hasClass('sidebar-collapsed-desktop');
this.toggleCollapsedSidebar(value, true);
}
});
this.$page.on('transitionstart transitionend', () => {
$(document).trigger('content.resize');
});
$(window).on('resize', () => _.debounce(this.render(), 100));
}
// TODO: use the breakpoints from breakpoints.js once they have been updated for bootstrap 4
// See documentation: https://design.gitlab.com/regions/navigation#contextual-navigation
static isDesktopBreakpoint = () => bp.windowWidth() >= NAV_SIDEBAR_BREAKPOINT;
static setCollapsedCookie(value) {
if (!ContextualSidebar.isDesktopBreakpoint()) {
return;
}
Cookies.set('sidebar_collapsed', value, { expires: 365 * 10 });
}
toggleSidebarNav(show) {
const breakpoint = bp.getBreakpointSize();
const dbp = ContextualSidebar.isDesktopBreakpoint();
this.$sidebar.toggleClass(SIDEBAR_COLLAPSED_CLASS, !show);
this.$sidebar.toggleClass('sidebar-expanded-mobile', !dbp ? show : false);
this.$overlay.toggleClass(
'mobile-nav-open',
breakpoint === 'xs' || breakpoint === 'sm' ? show : false,
);
this.$sidebar.removeClass('sidebar-collapsed-desktop');
}
toggleCollapsedSidebar(collapsed, saveCookie) {
const breakpoint = bp.getBreakpointSize();
const dbp = ContextualSidebar.isDesktopBreakpoint();
if (this.$sidebar.length) {
this.$sidebar.toggleClass('sidebar-collapsed-desktop', collapsed);
this.$sidebar.toggleClass('sidebar-expanded-mobile', !dbp ? !collapsed : false);
this.$page.toggleClass(
'page-with-icon-sidebar',
breakpoint === 'xs' || breakpoint === 'sm' ? true : collapsed,
);
}
if (saveCookie) {
ContextualSidebar.setCollapsedCookie(collapsed);
}
requestIdleCallback(() => this.toggleSidebarOverflow());
}
toggleSidebarOverflow() {
if (this.$innerScroll.prop('scrollHeight') > this.$innerScroll.prop('offsetHeight')) {
this.$innerScroll.css('overflow-y', 'scroll');
} else {
this.$innerScroll.css('overflow-y', '');
}
}
render() {
if (!this.$sidebar.length) return;
if (!ContextualSidebar.isDesktopBreakpoint()) {
this.toggleSidebarNav(false);
} else {
const collapse = parseBoolean(Cookies.get('sidebar_collapsed'));
this.toggleCollapsedSidebar(collapse, true);
}
}
}