mirror of
https://github.com/bookwyrm-social/bookwyrm.git
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Merge pull request #730 from mouse-reeve/js-style
JS linting and whitespace fixes
This commit is contained in:
Mouse Reeve
GitHub
commit
efcb552f9a
1 changed files with 203 additions and 203 deletions
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@ -209,249 +209,249 @@ function removeClass(el, className) {
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*/
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class TabGroup {
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constructor(container) {
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this.container = container;
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this.tablist = this.container.querySelector('[role="tablist"]');
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this.buttons = this.tablist.querySelectorAll('[role="tab"]');
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this.panels = this.container.querySelectorAll(':scope > [role="tabpanel"]');
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this.delay = this.determineDelay();
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if(!this.tablist || !this.buttons.length || !this.panels.length) {
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return;
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}
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this.keys = this.keys();
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this.direction = this.direction();
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this.initButtons();
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this.initPanels();
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this.container = container;
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this.tablist = this.container.querySelector('[role="tablist"]');
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this.buttons = this.tablist.querySelectorAll('[role="tab"]');
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this.panels = this.container.querySelectorAll(':scope > [role="tabpanel"]');
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this.delay = this.determineDelay();
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if(!this.tablist || !this.buttons.length || !this.panels.length) {
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return;
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}
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this.keys = this.keys();
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this.direction = this.direction();
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this.initButtons();
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this.initPanels();
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}
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keys() {
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return {
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end: 35,
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home: 36,
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left: 37,
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up: 38,
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right: 39,
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down: 40
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};
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return {
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end: 35,
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home: 36,
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left: 37,
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up: 38,
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right: 39,
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down: 40
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};
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}
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// Add or substract depending on key pressed
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direction() {
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return {
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37: -1,
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38: -1,
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39: 1,
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40: 1
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};
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return {
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37: -1,
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38: -1,
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39: 1,
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40: 1
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};
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}
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initButtons() {
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let count = 0;
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for(let button of this.buttons) {
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let isSelected = button.getAttribute("aria-selected") === "true";
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button.setAttribute("tabindex", isSelected ? "0" : "-1");
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button.addEventListener('click', this.clickEventListener.bind(this));
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button.addEventListener('keydown', this.keydownEventListener.bind(this));
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button.addEventListener('keyup', this.keyupEventListener.bind(this));
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button.index = count++;
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}
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}
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initPanels() {
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let selectedPanelId = this.tablist.querySelector('[role="tab"][aria-selected="true"]').getAttribute("aria-controls");
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for(let panel of this.panels) {
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if(panel.getAttribute("id") !== selectedPanelId) {
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panel.setAttribute("hidden", "");
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}
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panel.setAttribute("tabindex", "0");
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}
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}
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clickEventListener(event) {
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let button = event.target.closest('a');
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event.preventDefault();
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this.activateTab(button, false);
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initButtons() {
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let count = 0;
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for(let button of this.buttons) {
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let isSelected = button.getAttribute("aria-selected") === "true";
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button.setAttribute("tabindex", isSelected ? "0" : "-1");
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button.addEventListener('click', this.clickEventListener.bind(this));
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button.addEventListener('keydown', this.keydownEventListener.bind(this));
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button.addEventListener('keyup', this.keyupEventListener.bind(this));
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button.index = count++;
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}
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}
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initPanels() {
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let selectedPanelId = this.tablist.querySelector('[role="tab"][aria-selected="true"]').getAttribute("aria-controls");
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for(let panel of this.panels) {
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if(panel.getAttribute("id") !== selectedPanelId) {
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panel.setAttribute("hidden", "");
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}
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panel.setAttribute("tabindex", "0");
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}
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}
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clickEventListener(event) {
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let button = event.target.closest('a');
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event.preventDefault();
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this.activateTab(button, false);
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}
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// Handle keydown on tabs
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keydownEventListener(event) {
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var key = event.keyCode;
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switch (key) {
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case this.keys.end:
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event.preventDefault();
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// Activate last tab
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this.activateTab(this.buttons[this.buttons.length - 1]);
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break;
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case this.keys.home:
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event.preventDefault();
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// Activate first tab
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this.activateTab(this.buttons[0]);
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break;
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// Up and down are in keydown
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// because we need to prevent page scroll >:)
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case this.keys.up:
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case this.keys.down:
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this.determineOrientation(event);
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break;
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};
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var key = event.keyCode;
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switch (key) {
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case this.keys.end:
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event.preventDefault();
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// Activate last tab
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this.activateTab(this.buttons[this.buttons.length - 1]);
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break;
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case this.keys.home:
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event.preventDefault();
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// Activate first tab
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this.activateTab(this.buttons[0]);
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break;
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// Up and down are in keydown
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// because we need to prevent page scroll >:)
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case this.keys.up:
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case this.keys.down:
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this.determineOrientation(event);
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break;
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}
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}
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// Handle keyup on tabs
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keyupEventListener(event) {
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var key = event.keyCode;
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switch (key) {
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case this.keys.left:
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case this.keys.right:
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this.determineOrientation(event);
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break;
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};
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var key = event.keyCode;
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switch (key) {
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case this.keys.left:
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case this.keys.right:
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this.determineOrientation(event);
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break;
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}
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}
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// When a tablist’s aria-orientation is set to vertical,
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// only up and down arrow should function.
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// In all other cases only left and right arrow function.
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determineOrientation(event) {
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var key = event.keyCode;
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var vertical = this.tablist.getAttribute('aria-orientation') == 'vertical';
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var proceed = false;
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if (vertical) {
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if (key === this.keys.up || key === this.keys.down) {
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event.preventDefault();
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proceed = true;
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};
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}
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else {
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if (key === this.keys.left || key === this.keys.right) {
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proceed = true;
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};
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};
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if (proceed) {
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this.switchTabOnArrowPress(event);
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};
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var key = event.keyCode;
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var vertical = this.tablist.getAttribute('aria-orientation') == 'vertical';
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var proceed = false;
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if (vertical) {
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if (key === this.keys.up || key === this.keys.down) {
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event.preventDefault();
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proceed = true;
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}
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}
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else {
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if (key === this.keys.left || key === this.keys.right) {
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proceed = true;
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}
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}
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if (proceed) {
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this.switchTabOnArrowPress(event);
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}
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}
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// Either focus the next, previous, first, or last tab
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// depending on key pressed
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switchTabOnArrowPress(event) {
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var pressed = event.keyCode;
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for (let button of this.buttons) {
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button.addEventListener('focus', this.focusEventHandler.bind(this));
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};
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if (this.direction[pressed]) {
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var target = event.target;
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if (target.index !== undefined) {
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if (this.buttons[target.index + this.direction[pressed]]) {
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this.buttons[target.index + this.direction[pressed]].focus();
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}
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else if (pressed === this.keys.left || pressed === this.keys.up) {
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this.focusLastTab();
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}
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else if (pressed === this.keys.right || pressed == this.keys.down) {
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this.focusFirstTab();
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}
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var pressed = event.keyCode;
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for (let button of this.buttons) {
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button.addEventListener('focus', this.focusEventHandler.bind(this));
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}
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if (this.direction[pressed]) {
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var target = event.target;
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if (target.index !== undefined) {
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if (this.buttons[target.index + this.direction[pressed]]) {
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this.buttons[target.index + this.direction[pressed]].focus();
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}
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else if (pressed === this.keys.left || pressed === this.keys.up) {
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this.focusLastTab();
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}
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else if (pressed === this.keys.right || pressed == this.keys.down) {
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this.focusFirstTab();
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}
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}
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}
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}
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}
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// Activates any given tab panel
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activateTab (tab, setFocus) {
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if(tab.getAttribute("role") !== "tab") {
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tab = tab.closest('[role="tab"]');
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}
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setFocus = setFocus || true;
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// Deactivate all other tabs
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this.deactivateTabs();
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// Remove tabindex attribute
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tab.removeAttribute('tabindex');
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// Set the tab as selected
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tab.setAttribute('aria-selected', 'true');
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// Give the tab parent an is-active class
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tab.parentNode.classList.add('is-active');
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// Get the value of aria-controls (which is an ID)
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var controls = tab.getAttribute('aria-controls');
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// Remove hidden attribute from tab panel to make it visible
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document.getElementById(controls).removeAttribute('hidden');
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// Set focus when required
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if (setFocus) {
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tab.focus();
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}
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if(tab.getAttribute("role") !== "tab") {
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tab = tab.closest('[role="tab"]');
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}
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setFocus = setFocus || true;
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// Deactivate all other tabs
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this.deactivateTabs();
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// Remove tabindex attribute
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tab.removeAttribute('tabindex');
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// Set the tab as selected
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tab.setAttribute('aria-selected', 'true');
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// Give the tab parent an is-active class
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tab.parentNode.classList.add('is-active');
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// Get the value of aria-controls (which is an ID)
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var controls = tab.getAttribute('aria-controls');
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// Remove hidden attribute from tab panel to make it visible
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document.getElementById(controls).removeAttribute('hidden');
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// Set focus when required
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if (setFocus) {
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tab.focus();
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}
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}
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// Deactivate all tabs and tab panels
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deactivateTabs() {
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for (let button of this.buttons) {
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button.parentNode.classList.remove('is-active');
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button.setAttribute('tabindex', '-1');
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button.setAttribute('aria-selected', 'false');
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button.removeEventListener('focus', this.focusEventHandler.bind(this));
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}
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for (let panel of this.panels) {
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panel.setAttribute('hidden', 'hidden');
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}
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for (let button of this.buttons) {
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button.parentNode.classList.remove('is-active');
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button.setAttribute('tabindex', '-1');
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button.setAttribute('aria-selected', 'false');
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button.removeEventListener('focus', this.focusEventHandler.bind(this));
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}
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for (let panel of this.panels) {
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panel.setAttribute('hidden', 'hidden');
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}
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}
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focusFirstTab() {
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this.buttons[0].focus();
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this.buttons[0].focus();
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}
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focusLastTab() {
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this.buttons[this.buttons.length - 1].focus();
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this.buttons[this.buttons.length - 1].focus();
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}
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// Determine whether there should be a delay
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// when user navigates with the arrow keys
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determineDelay() {
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var hasDelay = this.tablist.hasAttribute('data-delay');
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var delay = 0;
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if (hasDelay) {
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var delayValue = this.tablist.getAttribute('data-delay');
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if (delayValue) {
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delay = delayValue;
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var hasDelay = this.tablist.hasAttribute('data-delay');
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var delay = 0;
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if (hasDelay) {
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var delayValue = this.tablist.getAttribute('data-delay');
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if (delayValue) {
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delay = delayValue;
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}
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else {
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// If no value is specified, default to 300ms
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delay = 300;
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}
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}
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else {
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// If no value is specified, default to 300ms
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delay = 300;
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};
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};
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return delay;
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return delay;
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}
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focusEventHandler(event) {
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var target = event.target;
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setTimeout(this.checkTabFocus.bind(this), this.delay, target);
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};
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var target = event.target;
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setTimeout(this.checkTabFocus.bind(this), this.delay, target);
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}
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// Only activate tab on focus if it still has focus after the delay
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checkTabFocus(target) {
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let focused = document.activeElement;
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if (target === focused) {
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this.activateTab(target, false);
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}
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let focused = document.activeElement;
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if (target === focused) {
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this.activateTab(target, false);
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}
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}
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}
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}
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