I am looking to replicate the functionality seen on Google's search page where any user input, whether through keyboard or barcode scanner, automatically populates the search box. The input should be captured no matter where on the page it happens, with the exception of other textboxes.
Does anyone have any suggestions on how to capture and handle these events, or where these events are triggered? This is for a GWT application, but I am open to using native Javascript as well.
When dealing with input from a keyboard, it is recommended to utilize the javascript onkeydown event or jQuery's keydown event attached to the body tag.
However, barcode scanners present a unique challenge. Some scanners act like keyboards, in which case the aforementioned methods should suffice. On the other hand, certain scanners save scanned data to the clipboard and paste it at the cursor position. If this is the scenario you are facing, refer to this recent Stackoverflow response for assistance.
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