There exist any method like document.addKeyPressListe开发者_开发知识库ner, DOM.addKeyPressKistener or anything else?
yes, there is document.onKeyDown
you use that with a callback function that fires after the key is pressed. Also, you can get what key was pressed as an integer pertaining to the key.
http://www.java2s.com/Tutorial/JavaScript/0280__Document/documentonkeydown.htm
You can either use addDomHandler on the RootPanel.get() (which wraps the document's <body>) or RootLayoutPanel.get(), or use Event.addNativePreviewHandler.
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