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Improve trusted-create-html scriptlet

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Raymond Hill 2025-12-30 10:29:40 -05:00
parent c8c29faab4
commit 3c7eb3497d
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GPG key ID: F5630CAE62A14316
1 changed files with 28 additions and 6 deletions
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34
src/js/resources/create-html.js
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@ -21,6 +21,7 @@
*/
import { registerScriptlet } from './base.js';
import { runAt } from './run-at.js';
import { safeSelf } from './safe-self.js';
/******************************************************************************/
@ -55,6 +56,7 @@ function trustedCreateHTML(
if ( htmlStr === '' ) { return; }
const safe = safeSelf();
const logPrefix = safe.makeLogPrefix('trusted-create-html', parentSelector, htmlStr, durationStr);
const extraArgs = safe.getExtraArgs(Array.from(arguments), 3);
// We do not want to recursively create elements
self.trustedCreateHTML = true;
let ancestor = self.frameElement;
@ -94,17 +96,37 @@ function trustedCreateHTML(
setTimeout(remove, duration);
return true;
};
if ( append() ) { return; }
const observer = new MutationObserver(( ) => {
if ( append() === false ) { return; }
observer.disconnect();
});
observer.observe(document, { childList: true, subtree: true });
const start = ( ) => {
if ( append() ) { return; }
const observer = new MutationObserver(( ) => {
if ( append() === false ) { return; }
observer.disconnect();
});
const observerOptions = {
childList: true,
subtree: true,
};
if ( /[#.[]/.test(parentSelector) ) {
observerOptions.attributes = true;
if ( parentSelector.includes('[') === false ) {
observerOptions.attributeFilter = [];
if ( parentSelector.includes('#') ) {
observerOptions.attributeFilter.push('id');
}
if ( parentSelector.includes('.') ) {
observerOptions.attributeFilter.push('class');
}
}
}
observer.observe(document, observerOptions);
};
runAt(start, extraArgs.runAt || 'loading');
}
registerScriptlet(trustedCreateHTML, {
name: 'trusted-create-html.js',
requiresTrust: true,
dependencies: [
runAt,
safeSelf,
],
world: 'ISOLATED',