Restrict keyboard shortcuts in TinyMCE editor

Question

Trying to find where to disable individual keyboard shortcuts in the jQuery version of TinyMCE editor. Currently the list of allowable shortcuts is:

• ctrl+z

Answer 1

Example code to switch back and forth from allowing I B and U in both IE and FF.

var ctrlKey = false;

function removeShortcuts(){
  var e = tinyMCE.activeEditor;
  for (var s in e.shortcuts){
    if(s=="ctrl,,,73" || s=="ctrl,,,85" || s="ctrl,,,66"){
      e.shortcuts[s].func = function(){};
    }
  }
  e.onKeyUp.add(onKeyUp);
  e.onKeyDown.add(onKeyDown);
}

function resetShortcuts(){
  var e = tinyMCE.activeEditor;
  if (isGecko) {
    e.addShortcut('ctrl+b', t.getLang('bold_desc'), 'Bold');
    e.addShortcut('ctrl+i', t.getLang('italic_desc'), 'Italic');
    e.addShortcut('ctrl+u', t.getLang('underline_desc'), 'Underline');
  }
  e.onKeyUp.remove(onKeyUp);
  e.onKeyDown.remove(onKeyDown);
}


function onKeyUp(editor, event){
  if(event.keyCode == 17){
    ctrlKey = false;
  }
}

function onKeyDown(editor, event){
  if(event.keyCode == 17){
    ctrlKey = true;
  }
  if(ctrlKey && (event.keyCode == 73 || event.keyCode == 85 || event.keyCode == 66){
    tinymce.dom.Event.cancel(event);
  }
}