94 lines
2.8 KiB
JavaScript
94 lines
2.8 KiB
JavaScript
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
const FOCUSABLE_ELEMENT_SELECTORS = `a[href],button:not([disabled]),button:not([hidden]),:not([tabindex="-1"]),input:not([disabled]),input:not([type="hidden"]),select:not([disabled]),textarea:not([disabled])`;
|
|
const isHTMLElement = (e) => {
|
|
if (typeof Element === "undefined")
|
|
return false;
|
|
return e instanceof Element;
|
|
};
|
|
const isVisible = (element) => {
|
|
const computed = getComputedStyle(element);
|
|
return computed.position === "fixed" ? false : element.offsetParent !== null;
|
|
};
|
|
const obtainAllFocusableElements = (element) => {
|
|
return Array.from(element.querySelectorAll(FOCUSABLE_ELEMENT_SELECTORS)).filter((item) => isFocusable(item) && isVisible(item));
|
|
};
|
|
const isFocusable = (element) => {
|
|
if (element.tabIndex > 0 || element.tabIndex === 0 && element.getAttribute("tabIndex") !== null) {
|
|
return true;
|
|
}
|
|
if (element.tabIndex < 0 || element.hasAttribute("disabled") || element.getAttribute("aria-disabled") === "true") {
|
|
return false;
|
|
}
|
|
switch (element.nodeName) {
|
|
case "A": {
|
|
return !!element.href && element.rel !== "ignore";
|
|
}
|
|
case "INPUT": {
|
|
return !(element.type === "hidden" || element.type === "file");
|
|
}
|
|
case "BUTTON":
|
|
case "SELECT":
|
|
case "TEXTAREA": {
|
|
return true;
|
|
}
|
|
default: {
|
|
return false;
|
|
}
|
|
}
|
|
};
|
|
const triggerEvent = function(elm, name, ...opts) {
|
|
let eventName;
|
|
if (name.includes("mouse") || name.includes("click")) {
|
|
eventName = "MouseEvents";
|
|
} else if (name.includes("key")) {
|
|
eventName = "KeyboardEvent";
|
|
} else {
|
|
eventName = "HTMLEvents";
|
|
}
|
|
const evt = document.createEvent(eventName);
|
|
evt.initEvent(name, ...opts);
|
|
elm.dispatchEvent(evt);
|
|
return elm;
|
|
};
|
|
const isLeaf = (el) => !el.getAttribute("aria-owns");
|
|
const getSibling = (el, distance, elClass) => {
|
|
const { parentNode } = el;
|
|
if (!parentNode)
|
|
return null;
|
|
const siblings = parentNode.querySelectorAll(elClass);
|
|
const index = Array.prototype.indexOf.call(siblings, el);
|
|
return siblings[index + distance] || null;
|
|
};
|
|
const focusElement = (el, options) => {
|
|
if (!el || !el.focus)
|
|
return;
|
|
let cleanup = false;
|
|
if (isHTMLElement(el) && !isFocusable(el) && !el.getAttribute("tabindex")) {
|
|
el.setAttribute("tabindex", "-1");
|
|
cleanup = true;
|
|
}
|
|
el.focus(options);
|
|
if (isHTMLElement(el) && cleanup) {
|
|
el.removeAttribute("tabindex");
|
|
}
|
|
};
|
|
const focusNode = (el) => {
|
|
if (!el)
|
|
return;
|
|
focusElement(el);
|
|
!isLeaf(el) && el.click();
|
|
};
|
|
|
|
exports.focusElement = focusElement;
|
|
exports.focusNode = focusNode;
|
|
exports.getSibling = getSibling;
|
|
exports.isFocusable = isFocusable;
|
|
exports.isLeaf = isLeaf;
|
|
exports.isVisible = isVisible;
|
|
exports.obtainAllFocusableElements = obtainAllFocusableElements;
|
|
exports.triggerEvent = triggerEvent;
|
|
//# sourceMappingURL=aria.js.map
|