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- 'use strict';
- function cssBlankPseudo(document, opts) {
-
- 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) {}
-
-
- const window = (document.ownerDocument || document).defaultView;
- observeValueOfHTMLElement(window.HTMLInputElement);
- observeValueOfHTMLElement(window.HTMLSelectElement);
- observeValueOfHTMLElement(window.HTMLTextAreaElement);
- const selector = 'input,select,textarea';
- Array.prototype.forEach.call(document.querySelectorAll(selector), node => {
- node.addEventListener('input', configureCssBlankAttribute);
- configureCssBlankAttribute.call(node);
- });
- new MutationObserver(mutationsList => {
- mutationsList.forEach(mutation => {
- if (mutation.addedNodes) {
- mutation.addedNodes.forEach(node => {
- if (node.nodeType === 1 && node.matches(selector)) {
- node.addEventListener('input', configureCssBlankAttribute);
- configureCssBlankAttribute.call(node);
- }
- });
- }
- if (mutation.removedNodes) {
- mutation.removedNodes.forEach(node => {
- if (node.nodeType === 1 && node.matches(selector)) {
- node.removeEventListener('input', configureCssBlankAttribute);
- }
- });
- }
- });
- }).observe(document, {
- childList: true,
- subtree: true
- });
- function configureCssBlankAttribute() {
- if (this.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);
- }
- }
- }
- function observeValueOfHTMLElement(HTMLElement) {
- const descriptor = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'value');
- const nativeSet = descriptor.set;
- descriptor.set = function set(value) {
-
- nativeSet.apply(this, arguments);
- configureCssBlankAttribute.apply(this);
- };
- Object.defineProperty(HTMLElement.prototype, 'value', descriptor);
- }
- }
- module.exports = cssBlankPseudo;
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