Long Press in JavaScript?

Question

Is it possible to implement "long press" in JavaScript (or jQuery)? How?

alt text http://androinica.com/wp-content/uploads/2009/11/longpress_options.png

HTML

<a href="" title="">Long press</a>

JavaScript

$("a").mouseup(function(){
  // Clear timeout
  return false;
}).mousedown(function(){
  // Set timeout
  return false; 
});

Answer 1

Most elegant and clean is a jQuery plugin: https://github.com/untill/jquery.longclick/, also available as packacke: https://www.npmjs.com/package/jquery.longclick.

In short, you use it like so:

$( 'button').mayTriggerLongClicks().on( 'longClick', function() { your code here } );

The advantage of this plugin is that, in contrast to some of the other answers here, click events are still possible. Note also that a long click occurs, just like a long tap on a device, before mouseup. So, that's a feature.

Answer 2

like this?

doc.addEeventListener("touchstart", function(){
    // your code ...
}, false);    

Answer 3

jQuery plugin. Just put $(expression).longClick(function() { <your code here> });. Second parameter is hold duration; default timeout is 500 ms.

(function($) {
    $.fn.longClick = function(callback, timeout) {
        var timer;
        timeout = timeout || 500;
        $(this).mousedown(function() {
            timer = setTimeout(function() { callback(); }, timeout);
            return false;
        });
        $(document).mouseup(function() {
            clearTimeout(timer);
            return false;
        });
    };

})(jQuery);

Answer 4

$(document).ready(function () {
    var longpress = false;

    $("button").on('click', function () {
        (longpress) ? alert("Long Press") : alert("Short Press");
    });

    var startTime, endTime;
    $("button").on('mousedown', function () {
        startTime = new Date().getTime();
    });

    $("button").on('mouseup', function () {
        endTime = new Date().getTime();
        longpress = (endTime - startTime < 500) ? false : true;
    });
});

DEMO

Answer 5

You can check the time to identify Click or Long Press [jQuery]

function AddButtonEventListener() {
try {
    var mousedowntime;
    var presstime;
    $("button[id$='" + buttonID + "']").mousedown(function() {
        var d = new Date();
        mousedowntime = d.getTime();
    });
    $("button[id$='" + buttonID + "']").mouseup(function() {
        var d = new Date();
        presstime = d.getTime() - mousedowntime;
        if (presstime > 999/*You can decide the time*/) {
            //Do_Action_Long_Press_Event();
        }
        else {
            //Do_Action_Click_Event();
        }
    });
}
catch (err) {
    alert(err.message);
}
}