当onload进程继续时，Mouseover和Mouseout不起作用

Question

I have a mouseover event and a mouseout event that shows and hide images... It works fine as long as the image is fully cached/loaded.

If I go over the image and leave the specific div (where mouseover and mouseout should trigger) fast during the load process, the mouseout event do not trigger and the image is always displayed until than (only if I reenter and leave with the cached image it works correctly). I guess that jquery is stuck in the onload process of the image and do not recognize the mouseout event. Is there any fix?

$(document).on('mouseover',".divclass", { ....

loadImage(urllink);

function loadImage(src) {
    var image = new Image();
    image.onload = function() {
        if ('naturalHeight' in this) {
            if (this.naturalHeight + this.naturalWidth === 0) {
                this.onerror();
                return;
            }
        } else if (this.width + this.height == 0) {
            this.onerror();
            return;
        }
        // At this point, there's no error. Picture is available:
        $('#picture').attr('src', urllink);
        $(".image-content").stop().fadeIn(200);
    };
    image.onerror = function() {
        //display noimg.png
        $('#picture').attr('src', ".../noimg.png");
        $(".image-content").stop().fadeIn(200);

    };
    image.src = src;
}
...
});

 $(document).on('mouseout',".divclass", function (e) {
    $('.image-content').css("display", "none");
     });

Exact the same bug happens when using mouseenter/mouseleave.

Answer 1

just in case someone has the same problem ...

I could not eraze the bug because jquery seems to skip the mouseout/mouseleave event when .onload for the image is going on. Furthermore a fast mouse movement increases the error rate.

I just did a small workaround:

   $(document).on('mousemove', function (e) {
     if ($(e.target).attr("class") !== "classname") { 
    $('.image-content').stop();
    $('.image-content').css("display", "none");
   e.stopPropagation();
     } else { return; }
     }); 

that do the trick ...