Function dispatch

documentation/javascript/application.js:10245–10287

(event, scope)

  // handle keydown event
  function dispatch(event, scope){
    var key, handler, k, i, modifiersMatch;
    key = event.keyCode;

    // if a modifier key, set the key.<modifierkeyname> property to true and return
    if(key == 93 || key == 224) key = 91; // right command on webkit, command on Gecko
    if(key in _mods) {
      _mods[key] = true;
      // 'assignKey' from inside this closure is exported to window.key
      for(k in _MODIFIERS) if(_MODIFIERS[k] == key) assignKey[k] = true;
      return;
    }

    // see if we need to ignore the keypress (ftiler() can can be overridden)
    // by default ignore key presses if a select, textarea, or input is focused
    if(!assignKey.filter.call(this, event)) return;

    // abort if no potentially matching shortcuts found
    if (!(key in _handlers)) return;

    // for each potential shortcut
    for (i = 0; i < _handlers[key].length; i++) {
      handler = _handlers[key][i];

      // see if it's in the current scope
      if(handler.scope == scope || handler.scope == 'all'){
        // check if modifiers match if any
        modifiersMatch = handler.mods.length > 0;
        for(k in _mods)
          if((!_mods[k] && index(handler.mods, +k) > -1) ||
            (_mods[k] && index(handler.mods, +k) == -1)) modifiersMatch = false;
        // call the handler and stop the event if neccessary
        if((handler.mods.length == 0 && !_mods[16] && !_mods[18] && !_mods[17] && !_mods[91]) || modifiersMatch){
          if(handler.method(event, handler)===false){
            if(event.preventDefault) event.preventDefault();
              else event.returnValue = false;
            if(event.stopPropagation) event.stopPropagation();
            if(event.cancelBubble) event.cancelBubble = true;
          }
        }
      }
	}
  };

  // unset modifier keys on keyup
  function clearModifier(event){