112 lines
No EOL
3 KiB
JavaScript
112 lines
No EOL
3 KiB
JavaScript
import {Component} from "./component";
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export class TriLayout extends Component {
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setup() {
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this.container = this.$refs.container;
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this.tabs = this.$manyRefs.tab;
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this.lastLayoutType = 'none';
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this.onDestroy = null;
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this.scrollCache = {
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'content': 0,
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'info': 0,
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};
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this.lastTabShown = 'content';
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// Bind any listeners
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this.mobileTabClick = this.mobileTabClick.bind(this);
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// Watch layout changes
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this.updateLayout();
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window.addEventListener('resize', event => {
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this.updateLayout();
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}, {passive: true});
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}
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updateLayout() {
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let newLayout = 'tablet';
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if (window.innerWidth <= 1000) newLayout = 'mobile';
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if (window.innerWidth >= 1400) newLayout = 'desktop';
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if (newLayout === this.lastLayoutType) return;
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if (this.onDestroy) {
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this.onDestroy();
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this.onDestroy = null;
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}
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if (newLayout === 'desktop') {
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this.setupDesktop();
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} else if (newLayout === 'mobile') {
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this.setupMobile();
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}
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this.lastLayoutType = newLayout;
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}
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setupMobile() {
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for (const tab of this.tabs) {
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tab.addEventListener('click', this.mobileTabClick);
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}
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this.onDestroy = () => {
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for (const tab of this.tabs) {
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tab.removeEventListener('click', this.mobileTabClick);
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}
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}
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}
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setupDesktop() {
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//
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}
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/**
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* Action to run when the mobile info toggle bar is clicked/tapped
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* @param event
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*/
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mobileTabClick(event) {
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const tab = event.target.dataset.tab;
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this.showTab(tab);
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}
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/**
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* Show the content tab.
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* Used by the page-display component.
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*/
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showContent() {
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this.showTab('content', false);
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}
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/**
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* Show the given tab
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* @param {String} tabName
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* @param {Boolean }scroll
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*/
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showTab(tabName, scroll = true) {
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this.scrollCache[this.lastTabShown] = document.documentElement.scrollTop;
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// Set tab status
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for (const tab of this.tabs) {
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const isActive = (tab.dataset.tab === tabName);
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tab.setAttribute('aria-selected', isActive ? 'true' : 'false');
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}
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// Toggle section
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const showInfo = (tabName === 'info');
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this.container.classList.toggle('show-info', showInfo);
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// Set the scroll position from cache
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if (scroll) {
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const pageHeader = document.querySelector('header');
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const defaultScrollTop = pageHeader.getBoundingClientRect().bottom;
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document.documentElement.scrollTop = this.scrollCache[tabName] || defaultScrollTop;
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setTimeout(() => {
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document.documentElement.scrollTop = this.scrollCache[tabName] || defaultScrollTop;
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}, 50);
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}
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this.lastTabShown = tabName;
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}
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} |