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Prettify tabs file

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This commit is contained in:
Mouse Reeve 2022-02-25 12:52:35 -08:00
parent cec7625e1e
commit 65bd3945e7
1 changed files with 34 additions and 38 deletions
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72
bookwyrm/static/js/tabs.js
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@ -1,11 +1,11 @@
/* exported TabGroup */
/*
* The content below is licensed according to the W3C Software License at
* https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document
* Heavily modified to web component by Zach Leatherman
* Modified back to vanilla JavaScript with support for Bulma markup and nested tabs by Ned Zimmerman
*/
* The content below is licensed according to the W3C Software License at
* https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document
* Heavily modified to web component by Zach Leatherman
* Modified back to vanilla JavaScript with support for Bulma markup and nested tabs by Ned Zimmerman
*/
class TabGroup {
constructor(container) {
this.container = container;
@ -15,7 +15,7 @@ class TabGroup {
this.panels = this.container.querySelectorAll(':scope > [role="tabpanel"]');
this.delay = this.determineDelay();
if(!this.tablist || !this.tabs.length || !this.panels.length) {
if (!this.tablist || !this.tabs.length || !this.panels.length) {
return;
}
@ -32,7 +32,7 @@ class TabGroup {
left: 37,
up: 38,
right: 39,
down: 40
down: 40,
};
}
@ -42,19 +42,19 @@ class TabGroup {
37: -1,
38: -1,
39: 1,
40: 1
40: 1,
};
}
initTabs() {
let count = 0;
for(let tab of this.tabs) {
for (let tab of this.tabs) {
let isSelected = tab.getAttribute("aria-selected") === "true";
tab.setAttribute("tabindex", isSelected ? "0" : "-1");
tab.addEventListener('click', this.clickEventListener.bind(this));
tab.addEventListener('keydown', this.keydownEventListener.bind(this));
tab.addEventListener('keyup', this.keyupEventListener.bind(this));
tab.addEventListener("click", this.clickEventListener.bind(this));
tab.addEventListener("keydown", this.keydownEventListener.bind(this));
tab.addEventListener("keyup", this.keyupEventListener.bind(this));
tab.index = count++;
}
@ -64,8 +64,8 @@ class TabGroup {
let selectedPanelId = this.tablist
.querySelector('[role="tab"][aria-selected="true"]')
.getAttribute("aria-controls");
for(let panel of this.panels) {
if(panel.getAttribute("id") !== selectedPanelId) {
for (let panel of this.panels) {
if (panel.getAttribute("id") !== selectedPanelId) {
panel.setAttribute("hidden", "");
}
panel.setAttribute("tabindex", "0");
@ -122,7 +122,7 @@ class TabGroup {
// In all other cases only left and right arrow function.
determineOrientation(event) {
var key = event.keyCode;
var vertical = this.tablist.getAttribute('aria-orientation') == 'vertical';
var vertical = this.tablist.getAttribute("aria-orientation") == "vertical";
var proceed = false;
if (vertical) {
@ -130,8 +130,7 @@ class TabGroup {
event.preventDefault();
proceed = true;
}
}
else {
} else {
if (key === this.keys.left || key === this.keys.right) {
proceed = true;
}
@ -148,7 +147,7 @@ class TabGroup {
var pressed = event.keyCode;
for (let tab of this.tabs) {
tab.addEventListener('focus', this.focusEventHandler.bind(this));
tab.addEventListener("focus", this.focusEventHandler.bind(this));
}
if (this.direction[pressed]) {
@ -156,11 +155,9 @@ class TabGroup {
if (target.index !== undefined) {
if (this.tabs[target.index + this.direction[pressed]]) {
this.tabs[target.index + this.direction[pressed]].focus();
}
else if (pressed === this.keys.left || pressed === this.keys.up) {
} else if (pressed === this.keys.left || pressed === this.keys.up) {
this.focusLastTab();
}
else if (pressed === this.keys.right || pressed == this.keys.down) {
} else if (pressed === this.keys.right || pressed == this.keys.down) {
this.focusFirstTab();
}
}
@ -168,8 +165,8 @@ class TabGroup {
}
// Activates any given tab panel
activateTab (tab, setFocus) {
if(tab.getAttribute("role") !== "tab") {
activateTab(tab, setFocus) {
if (tab.getAttribute("role") !== "tab") {
tab = tab.closest('[role="tab"]');
}
@ -179,19 +176,19 @@ class TabGroup {
this.deactivateTabs();
// Remove tabindex attribute
tab.removeAttribute('tabindex');
tab.removeAttribute("tabindex");
// Set the tab as selected
tab.setAttribute('aria-selected', 'true');
tab.setAttribute("aria-selected", "true");
// Give the tab is-active class
tab.classList.add('is-active');
tab.classList.add("is-active");
// Get the value of aria-controls (which is an ID)
var controls = tab.getAttribute('aria-controls');
var controls = tab.getAttribute("aria-controls");
// Remove hidden attribute from tab panel to make it visible
document.getElementById(controls).removeAttribute('hidden');
document.getElementById(controls).removeAttribute("hidden");
// Set focus when required
if (setFocus) {
@ -202,14 +199,14 @@ class TabGroup {
// Deactivate all tabs and tab panels
deactivateTabs() {
for (let tab of this.tabs) {
tab.classList.remove('is-active');
tab.setAttribute('tabindex', '-1');
tab.setAttribute('aria-selected', 'false');
tab.removeEventListener('focus', this.focusEventHandler.bind(this));
tab.classList.remove("is-active");
tab.setAttribute("tabindex", "-1");
tab.setAttribute("aria-selected", "false");
tab.removeEventListener("focus", this.focusEventHandler.bind(this));
}
for (let panel of this.panels) {
panel.setAttribute('hidden', 'hidden');
panel.setAttribute("hidden", "hidden");
}
}
@ -224,15 +221,14 @@ class TabGroup {
// Determine whether there should be a delay
// when user navigates with the arrow keys
determineDelay() {
var hasDelay = this.tablist.hasAttribute('data-delay');
var hasDelay = this.tablist.hasAttribute("data-delay");
var delay = 0;
if (hasDelay) {
var delayValue = this.tablist.getAttribute('data-delay');
var delayValue = this.tablist.getAttribute("data-delay");
if (delayValue) {
delay = delayValue;
}
else {
} else {
// If no value is specified, default to 300ms
delay = 300;
}