Action while the button is being clicked

Unfortunately, JavaScript does not have a method that detects the click continuously. The mousedown event is triggered when you click either the left or the right button and it is only detected once, even if you hold the click.

The event mouseup does the inverse, detects when the click is released.

What you can do to simulate a continuous action with mousedown is to insert a setInterval by calling an action repeatedly after a short interval. When you release the click, trigger the mouseup event by canceling the setInterval .

Now since mousedown detects both left and right click, you can use the buttons property of the event to know which button was clicked:

buttons: 1 (clique esquerdo)
buttons: 2 (clique direito)

You can also disable the menu that opens to the right click. To do this, return false in event contextmenu :

botao.addEventListener("contextmenu", function(e){
   e.preventDefault();
}, false);

Example:

var botao = document.getElementById("botao");
var intervalo;
botao.addEventListener("mousedown", function(e){
   if(e.buttons == 2){
      intervalo = setInterval(pressionado, 100);
   }
});

botao.addEventListener("mouseup", function(){
   clearInterval(intervalo);
});

// desativar o menu do clique direito
botao.addEventListener("contextmenu", function(e){
   e.preventDefault();
}, false);

function pressionado(){
   var html = '<p>texto</p>';
   document.getElementById("areadeteste").innerHTML += html;
}

<button id="botao">Clique aqui com o botão direito, segure um pouco e solte</button>
<div id="areadeteste"></div>

Hello.

So you said, you need an event that understands that the user clicked an element but did not release the "click" button, right?

You can use the onmousedown event. When the user clicks the left button, this event will occur, and as long as the next event - "onmouseup" - does not occur, it means that the button is still pressed. Got it?

The following simple example (click and hold remains in the same event): link

You're thinking like it's three events, but actually they're only two.

Good luck.