0nitro/priv/js/comboLookup.js

function comboClear(dom){
  let elem = qi('comboContainer_' + dom)
  if(elem){ elem.style.display = 'none' }
  activeCombo = undefined;
  currentItem = undefined;
}

function comboSelect(dom, row, feed, mod, id){
  let elem = qi(dom);
  comboClear(dom);
  if(qi(id)) elem.setAttribute("data-bind", qi(id).getAttribute('data-bind'));
  elem.value = row;
  elem.style.backgroundColor = 'white';
  direct(tuple(atom('comboSelect'),
               string(dom),
               string(row),
               string(feed),
               atom(mod)));
}

function comboLookupChange(dom){
  let elem = qi(dom);
  if(elem && elem.value == "" && elem.getAttribute("data-bind")){
    elem.removeAttribute("data-bind");
  }
}

function comboLookupClick(dom, feed, mod){
  var char = event.which || event.keyCode;
  if(char ==  1 && !activeCombo && qi(dom).value == ''){
    activeCombo = dom;
    currentItem = undefined;
    direct(tuple(atom('comboKey'),
                atom('all'),
                string(dom),
                string(feed),
                atom(mod)));
    return ;
  }else if(char ==  1 && activeCombo == dom){
    comboClear(dom);
  }
}

function comboLookupKeydown(dom, feed, mod){
  var char = event.which || event.keyCode;
  if(char == 40 && !activeCombo && qi(dom).value == ''){
    activeCombo = dom;
    currentItem = undefined;
    direct(tuple(atom('comboKey'),
                 atom('all'),
                 string(dom),
                 string(feed),
                 atom(mod)));
    return ;
  }
  if(activeCombo && [38, 40].includes(char)){
    event.preventDefault();
    console.log('Keycode: ' + char + ", DOM: " + dom);
    if(char == 40){
      set_focus(currentItem && ( !cycleEnabled || currentItem.nextSibling) ? 
                  currentItem.nextSibling : qi('comboContainer_' + dom).firstChild, true);
    }else if(char == 38){
      set_focus(currentItem && ( !cycleEnabled || currentItem.previousSibling) ? 
                  currentItem.previousSibling : qi('comboContainer_' + dom).lastChild, true);
    }
  }
}

function comboLookupKeyup(dom, feed, mod){
  var char = event.which || event.keyCode;
  if(char == 27 || (char == 8 || char == 46) && qi(dom).value == ''){
    qi(dom).value = '';
    comboClear(dom);
    return ;
  }
  if(char == 13 && currentItem){
    currentItem.click();
    return ;
  }
  if([33, 34, 35, 36, 37, 39].includes(char)){ return ; }
  if(activeCombo && [38, 40].includes(char)){
    return ;
  }else{
    activeCombo = dom;
    currentItem = undefined;
    direct(tuple(atom('comboKey'),
                 bin(qi(dom).value),
                 string(dom),
                 string(feed),
                 atom(mod)));
  }
}

function comboLookupMouseMove(dom){
  set_focus(event.target.closest('.dropdown-item'), false);
}

function set_focus(elem, scroll){
  if(elem){
    if(currentItem){
      currentItem.className = "dropdown-item";
    }
    elem.className = "dropdown-item focus";
    if(scroll==true){
      elem.scrollIntoView({block: "nearest", inline: "nearest"});
    }
    currentItem = elem
  }
}

document.addEventListener("click", () => {
  if(activeCombo && event.target.className != 'triangle' &&
    !event.target.closest('#comboContainer_' + activeCombo)){
      qi(activeCombo).value = '';
      comboClear(activeCombo);
  }
});

function comboLostFocus(e){}
function comboOnFocus(e){}
function comboLookupMouseOut(dom){}

var activeCombo = undefined
var currentItem = undefined
var cycleEnabled = false