94 lines
2.9 KiB
JavaScript
94 lines
2.9 KiB
JavaScript
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function TabState(tabbed) {
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this.container = tabbed;
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this.tabs = tabbed.querySelector(".tab");
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this.tabbar = document.createElement("div");
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this.tabbar.classList.add("tab-bar");
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this.container.insertBefore(this.tabbar, this.container.firstChild);
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this.current_i = -1;
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this.tab_buttons = [];
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}
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function switch_tab_old(state, tab_i) {
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return function() {
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if (state.current_i >= 0) {
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state.tabs[state.current_i].classList.add("hidden");
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state.tab_buttons[state.current_i].classList.remove("current");
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}
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state.tabs[tab_i].classList.remove("hidden");
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state.tab_buttons[tab_i].classList.add("current");
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var hash = "";
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if (state.tabs[tab_i].hasAttribute("data-url-hash")) {
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hash = state.tabs[tab_i].getAttribute("data-url-hash");
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}
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window.location.hash = hash;
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state.current_i = tab_i;
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};
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}
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document.addEventListener("DOMContentLoaded", function() {
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const tabContainers = document.getElementsByClassName("tabbed");
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for (const container of tabContainers) {
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const tabBar = document.createElement("div");
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tabBar.classList.add("tab-bar");
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container.insertAdjacentElement('afterbegin', tabBar);
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const tabs = container.querySelectorAll(".tab");
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for (let i = 0; i < tabs.length; i++) {
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const tab = tabs[i];
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tab.classList.toggle('dn', i > 0);
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const slug = tab.getAttribute("data-slug");
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// TODO: Should this element be a link?
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const tabButton = document.createElement("div");
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tabButton.classList.add("tab-button");
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tabButton.classList.toggle("current", i === 0);
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tabButton.innerText = tab.getAttribute("data-name");
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tabButton.setAttribute("data-slug", slug);
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tabButton.addEventListener("click", () => {
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switchTab(container, slug);
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});
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tabBar.appendChild(tabButton);
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}
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const initialSlug = window.location.hash;
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if (initialSlug) {
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switchTab(container, initialSlug.substring(1));
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}
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}
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});
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function switchTab(container, slug) {
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const tabs = container.querySelectorAll('.tab');
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let didMatch = false;
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for (const tab of tabs) {
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const slugMatches = tab.getAttribute("data-slug") === slug;
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tab.classList.toggle('dn', !slugMatches);
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if (slugMatches) {
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didMatch = true;
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}
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}
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const tabButtons = document.querySelectorAll(".tab-button");
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for (const tabButton of tabButtons) {
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const buttonSlug = tabButton.getAttribute("data-slug");
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tabButton.classList.toggle('current', slug === buttonSlug);
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}
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if (!didMatch) {
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// switch to first tab as a fallback
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tabs[0].classList.remove('dn');
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tabButtons[0].classList.add('current');
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}
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window.location.hash = slug;
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}
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