GoScrobble/web/node_modules/css-blank-pseudo/legacy.mjs

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JavaScript
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2022-04-25 02:47:15 +00:00
function cssBlankPseudo(document, opts) {
// configuration
const className = Object(opts).className;
const attr = Object(opts).attr || 'blank';
const force = Object(opts).force;
try {
document.querySelector(':blank');
if (!force) {
return;
}
} catch (ignoredError) {}
/* do nothing and continue */
// observe value changes on <input>, <select>, and <textarea>
const window = (document.ownerDocument || document).defaultView;
observeValueOfHTMLElement(window.HTMLInputElement);
observeValueOfHTMLElement(window.HTMLSelectElement);
observeValueOfHTMLElement(window.HTMLTextAreaElement);
observeSelectedOfHTMLElement(window.HTMLOptionElement); // form control elements selector
const selector = 'INPUT,SELECT,TEXTAREA';
const selectorRegExp = /^(INPUT|SELECT|TEXTAREA)$/; // conditionally update all form control elements
Array.prototype.forEach.call(document.querySelectorAll(selector), node => {
if (node.nodeName === 'SELECT') {
node.addEventListener('change', configureCssBlankAttribute);
} else {
node.addEventListener('input', configureCssBlankAttribute);
}
configureCssBlankAttribute.call(node);
}); // conditionally observe added or unobserve removed form control elements
new MutationObserver(mutationsList => {
mutationsList.forEach(mutation => {
Array.prototype.forEach.call(mutation.addedNodes || [], node => {
if (node.nodeType === 1 && selectorRegExp.test(node.nodeName)) {
if (node.nodeName === 'SELECT') {
node.addEventListener('change', configureCssBlankAttribute);
} else {
node.addEventListener('input', configureCssBlankAttribute);
}
configureCssBlankAttribute.call(node);
}
});
Array.prototype.forEach.call(mutation.removedNodes || [], node => {
if (node.nodeType === 1 && selectorRegExp.test(node.nodeName)) {
if (node.nodeName === 'SELECT') {
node.removeEventListener('change', configureCssBlankAttribute);
} else {
node.removeEventListener('input', configureCssBlankAttribute);
}
}
});
});
}).observe(document, {
childList: true,
subtree: true
}); // update a form control elements css-blank attribute
function configureCssBlankAttribute() {
if (this.value || this.nodeName === 'SELECT' && this.options[this.selectedIndex].value) {
if (attr) {
this.removeAttribute(attr);
}
if (className) {
this.classList.remove(className);
}
this.removeAttribute('blank');
} else {
if (attr) {
this.setAttribute('blank', attr);
}
if (className) {
this.classList.add(className);
}
}
} // observe changes to the "value" property on an HTML Element
function observeValueOfHTMLElement(HTMLElement) {
const descriptor = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'value');
const nativeSet = descriptor.set;
descriptor.set = function set(value) {
// eslint-disable-line no-unused-vars
nativeSet.apply(this, arguments);
configureCssBlankAttribute.apply(this);
};
Object.defineProperty(HTMLElement.prototype, 'value', descriptor);
} // observe changes to the "selected" property on an HTML Element
function observeSelectedOfHTMLElement(HTMLElement) {
const descriptor = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'selected');
const nativeSet = descriptor.set;
descriptor.set = function set(value) {
// eslint-disable-line no-unused-vars
nativeSet.apply(this, arguments);
const event = document.createEvent('Event');
event.initEvent('change', true, true);
this.dispatchEvent(event);
};
Object.defineProperty(HTMLElement.prototype, 'selected', descriptor);
}
}
export default cssBlankPseudo;
//# sourceMappingURL=legacy.mjs.map