How to write a Google Chrome extension that disables a default keyboard-shortcut?

问题

I need a Google Chrome extension that simply disables the built in alte shortcut and pass it to the HTML accesskey as ordinary. (yes, that all - no configuration/graphics)

It's for an in-house web-application and I don't want to use existing extensions.

I've browsed the extension documentation but would be thankful for a jump start in this matter.

回答1:

Unfortunately there's no way to hook into global hotkeys. The best you can do is add a window event keypress listener.

Source: a Chromium developer post on the chromium-extensions group.

Related Question: Keyboard Shortcuts in Google Chrome / Chromium Extensions

回答2:

For reference, (modified from http://www.catswhocode.com/blog/using-keyboard-shortcuts-in-javascript):

var isAlt = false;
$(document).keyup(function (e) {
  if(e.which == 18) isAlt=false;
}).keydown(function (e) {
  if(e.which == 18) isAlt=true;
  if(e.which == 69 && isAlt == true) {
    alert('Keyboard shortcuts + JQuery are even more cool!');
    return false;
  }
});    

来源：https://stackoverflow.com/questions/18249790/how-to-write-a-google-chrome-extension-that-disables-a-default-keyboard-shortcut