When working with a textbox (
<input type="text">In my application, I encountered a scenario where a textbox was nested inside an outer widget. The outer widget had no knowledge of the existence of the textbox, but I needed to prevent it from processing keystrokes if the textbox could handle them instead. This led me to consider implementing the following solution:
function onInputKeyDown(e) {
const textbox = e.target as HTMLInputElement;
const selStart = textbox.selectionStart, selEnd = textbox.selectionEnd;
const content = textbox.textContent;
e.invokeDefault() // doesn't exist
if (selStart !== textbox.selectionStart || selEnd !== textbox.selectionEnd
|| content !== textbox.textContent)
e.stopPropagation();
}
I attempted to emulate "invokeDefault" using
e.preventDefault(); e.target.dispatchEvent(new KeyboardEvent('keydown', e))dispatchEvent does not trigger default behavior. Instead, it only calls event handlers without affecting the default behavior, resulting in no change to the text field. Is there another approach that can be pursued?