JWPlayer Prevent SKipping forward unless already watched

Question

I\'m using JWPlayer 5.4 and it\'s setup on the page using the javascript API.

What I\'d like to do is make it so that users can fastforward/rewing via the seek bar O

Answer 1

Had been using @mal's answer for a while, but found it was breaking for some edge cases (e.g. click and drag). Could be because we're on JW player 8?

Anyway, got a modified solution that covers them pretty well if anyone is still looking for answers to this. Relies on the seeked handler which fires after the seek occurs.

var seeking = false;
var maxPlayPosition = 0;

jwplayer().on('time', function (event) {
    if (!seeking) {
        maxPlayPosition = Math.max(event.position, maxPlayPosition);
    }
}).on('seek', function (event) {
    seeking = true;
}).on('seeked', function (event) {
    var pos = jwplayer().getPosition();
    if (pos > maxPlayPosition) {
        jwplayer().seek(maxPlayPosition);
    }
    seeking = false;
});

Answer 2

I found this a while back, probably on the JWplayer forum. I think I added a bit about the playlist. So just in case you or others are still looking for an answer, consider adding stuff like:

var maxPlayPosition = 0.0;
var seeking = false;

jwplayer().onTime(function(event) 
{
    if (!seeking) 
    {
        maxPlayPosition = Math.max(event.position, maxPlayPosition); 
    }
})
.onPlaylistItem(function()
{
    maxPlayPosition = 0.0;
})   // consider using only if you have playlists
.onSeek(function (event) 
{
    if (!seeking) 
    {
        if (event.offset > maxPlayPosition) 
        {
            seeking = true;
            setTimeout(function ()
            {  
               jwplayer().seek(maxPlayPosition);
            }, 100);
        }
    } 
    else 
    {
        seeking = false;
    }   
 });