githaven-fork/web_src/js/modules/dirauto.ts
silverwind 5791a73e75
Convert frontend code to typescript (#31559)
None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).

`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.

Everything appears to work fine.
2024-07-07 15:32:30 +00:00

41 lines
1.3 KiB
TypeScript

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