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fix some execCommand weirdness

This commit is contained in:
LenAnderson 2024-07-23 16:46:46 -04:00
parent 0d75ca9a5d
commit 8df6353725
1 changed files with 14 additions and 4 deletions
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18
public/scripts/extensions/quick-reply/src/QuickReply.js
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@ -681,11 +681,21 @@ export class QuickReply {
const lineStart = getLineStart();
message.selectionStart = lineStart;
const affectedLines = message.value.substring(lineStart, end).split('\n');
const newText = affectedLines.map(it=>it.replace(/^\t/, '')).join('\n');
const delta = affectedLines.join('\n').length - newText.length;
// document.execCommand is deprecated (and potentially buggy in some browsers) but the only way to retain undo-history
document.execCommand('insertText', false, `${affectedLines.map(it=>it.replace(/^\t/, '')).join('\n')}`);
message.selectionStart = start - 1;
message.selectionEnd = end - affectedLines.length;
message.dispatchEvent(new Event('input', { bubbles:true }));
if (delta > 0) {
if (newText == '') {
document.execCommand('delete', false);
} else {
document.execCommand('insertText', false, newText);
}
message.selectionStart = start - (affectedLines[0].startsWith('\t') ? 1 : 0);
message.selectionEnd = end - delta;
message.dispatchEvent(new Event('input', { bubbles:true }));
} else {
message.selectionStart = start;
}
} else if (evt.key == 'Enter' && !evt.ctrlKey && !evt.shiftKey && !evt.altKey && !(ac.isReplaceable && ac.isActive)) {
// new line, keep indent
const start = message.selectionStart;