40 lines
1.3 KiB
JavaScript
40 lines
1.3 KiB
JavaScript
import {isDocumentFragmentOrElementNode} from '../utils/dom.js';
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// for performance considerations, it only uses performant syntax
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function attachDirAuto(el) {
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if (el.type !== 'hidden' &&
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el.type !== 'checkbox' &&
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el.type !== 'radio' &&
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el.type !== 'range' &&
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el.type !== 'color') {
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el.dir = 'auto';
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}
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}
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export function initDirAuto() {
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const observer = new MutationObserver((mutationList) => {
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const len = mutationList.length;
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for (let i = 0; i < len; i++) {
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const mutation = mutationList[i];
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const len = mutation.addedNodes.length;
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for (let i = 0; i < len; i++) {
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const addedNode = mutation.addedNodes[i];
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if (!isDocumentFragmentOrElementNode(addedNode)) continue;
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if (addedNode.nodeName === 'INPUT' || addedNode.nodeName === 'TEXTAREA') attachDirAuto(addedNode);
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const children = addedNode.querySelectorAll('input, textarea');
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const len = children.length;
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for (let childIdx = 0; childIdx < len; childIdx++) {
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attachDirAuto(children[childIdx]);
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}
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}
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}
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});
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const docNodes = document.querySelectorAll('input, textarea');
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const len = docNodes.length;
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for (let i = 0; i < len; i++) {
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attachDirAuto(docNodes[i]);
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}
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observer.observe(document, {subtree: true, childList: true});
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}
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