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javascriptjqueryslidereasyslider

Continous animation after clicking the next button using Easyslider 1.7


Does anybody who has ever used this know how to get the slides to continue scrolling after clicking the next button? Currently if you click on 'next' button, they stay on that slide.

My jQuery skills are slightly below average and I can't figure out myself if there is an easy way of doing it. Any help would be grand :)

Easyslider is a jQuery plugin, Here is the JS:

(function($) {

$.fn.easySlider = function(options){

    // default configuration properties
    var defaults = {            
        prevId:         'prevBtn',
        prevText:       'Previous',
        nextId:         'nextBtn',  
        nextText:       'Next',
        controlsShow:   true,
        controlsBefore: '',
        controlsAfter:  '', 
        controlsFade:   true,
        firstId:        'firstBtn',
        firstText:      'First',
        firstShow:      false,
        lastId:         'lastBtn',  
        lastText:       'Last',
        lastShow:       false,              
        vertical:       false,
        speed:          800,
        auto:           true,
        pause:          3000,
        continuous:     true, 
        numeric:        false,
        numericId:      'controls'
    }; 

    var options = $.extend(defaults, options);  

    this.each(function() {  
        var obj = $(this);              
        var s = $("li", obj).length;
        var w = $("li", obj).width(); 
        //var h = $("li", obj).height(); 
        var clickable = true;
        obj.width(w); 
        //obj.height(h); 
        obj.css("overflow","hidden");
        var ts = s-1;
        var t = 0;
        $("ul", obj).css('width',s*w);          

        if(options.continuous){
            $("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
            $("ul", obj).append($("ul li:nth-child(2)", obj).clone());
            $("ul", obj).css('width',(s+1)*w);
        };              

        if(!options.vertical) $("li", obj).css('float','left');

        if(options.controlsShow){
            var html = options.controlsBefore;              
            if(options.numeric){
                html += '<ol id="'+ options.numericId +'"></ol>';
            } else {
                if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
                html += ' <span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
                html += ' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
                if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';              
            };

            html += options.controlsAfter;                      
            $(obj).after(html);                                     
        };

        if(options.numeric){                                    
            for(var i=0;i<s;i++){                       
                $(document.createElement("li"))
                    .attr('id',options.numericId + (i+1))
                    .html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
                    .appendTo($("#"+ options.numericId))
                    .click(function(){                          
                        animate($("a",$(this)).attr('rel'),true);
                    });                                                 
            };                          
        } else {
            $("a","#"+options.nextId).click(function(){     
                animate("next",true);
            });
            $("a","#"+options.prevId).click(function(){     
                animate("prev",true);               
            }); 
            $("a","#"+options.firstId).click(function(){        
                animate("first",true);
            });             
            $("a","#"+options.lastId).click(function(){     
                animate("last",true);               
            });             
        };

        function setCurrent(i){
            i = parseInt(i)+1;
            $("li", "#" + options.numericId).removeClass("current");
            $("li#" + options.numericId + i).addClass("current");
        };

        function adjust(){
            if(t>ts) t=0;       
            if(t<0) t=ts;   
            if(!options.vertical) {
                $("ul",obj).css("margin-left",(t*w*-1));
            } else {
                $("ul",obj).css("margin-left",(t*h*-1));
            }
            clickable = true;
            if(options.numeric) setCurrent(t);
        };

        function animate(dir,clicked){
            if (clickable){
                clickable = false;
                var ot = t;             
                switch(dir){
                    case "next":
                        t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;                       
                        break; 
                    case "prev":
                        t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
                        break; 
                    case "first":
                        t = 0;
                        break; 
                    case "last":
                        t = ts;
                        break; 
                    default:
                        t = dir;
                        break; 
                };  
                var diff = Math.abs(ot-t);
                var speed = diff*options.speed;                     
                if(!options.vertical) {
                    p = (t*w*-1);
                    $("ul",obj).animate(
                        { marginLeft: p }, 
                        { queue:false, duration:speed, complete:adjust }
                    );              
                } else {
                    p = (t*h*-1);
                    $("ul",obj).animate(
                        { marginTop: p }, 
                        { queue:false, duration:speed, complete:adjust }
                    );                  
                };

                if(!options.continuous && options.controlsFade){                    
                    if(t==ts){
                        $("a","#"+options.nextId).hide();
                        $("a","#"+options.lastId).hide();
                    } else {
                        $("a","#"+options.nextId).show();
                        $("a","#"+options.lastId).show();                   
                    };
                    if(t==0){
                        $("a","#"+options.prevId).hide();
                        $("a","#"+options.firstId).hide();
                    } else {
                        $("a","#"+options.prevId).show();
                        $("a","#"+options.firstId).show();
                    };                  
                };              

                if(clicked) clearTimeout(timeout);
                if(options.auto && dir=="next" && !clicked){;
                    timeout = setTimeout(function(){
                        animate("next",false);
                    },diff*options.speed+options.pause);
                };

            };

        };
        // init
        var timeout;
        if(options.auto){;
            timeout = setTimeout(function(){
                animate("next",false);
            },options.pause);
        };      

        if(options.numeric) setCurrent(0);

        if(!options.continuous && options.controlsFade){                    
            $("a","#"+options.prevId).hide();
            $("a","#"+options.firstId).hide();              
        };              

    });

};

})(jQuery);

Demo of what I'm working with: http://cssglobe.com/lab/easyslider1.7/01.html


Solution

  • I got it to work by modifying the easyslider1.7.js file.

    Line 195 you have

    if(options.auto && dir=="next" && !clicked){
        timeout = setTimeout(function(){
           animate("next",false);
        },diff*options.speed+options.pause);
    };
    

    I added an else statement as follows

    if(options.auto && dir=="next" && !clicked){
        timeout = setTimeout(function(){
            animate("next",false);
        },diff*options.speed+options.pause);
    } else {
        if(clicked && options.auto && !options.numeric) {
            timeout = setTimeout(function(){
                animate("next",false);
            },diff*options.speed+options.pause);
        };
    };
    

    Might not be the most elegant solution (I'm not a javascript or jQuery expert) but it seems to work, although only for the left and right arrows, not the controls.