/*
 * Marquee jQuery Plug-in
 *
 * Copyright 2009 Giva, Inc. (http://www.givainc.com/labs/) 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * 	http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Date: 2009-05-20
 * Rev:  1.0.01
 */

(function(A){
    A.marquee={
        version:"1.0.01"
    };

    A.fn.marquee=function(E){
        var F=typeof arguments[0]=="string"&&arguments[0];
        var D=F&&Array.prototype.slice.call(arguments,1)||arguments;
        var C=(this.length==0)?null:A.data(this[0],"marquee");
        if(C&&F&&this.length){
            if(F.toLowerCase()=="object"){
                return C
                }else{
                if(C[F]){
                    var B;
                    this.each(function(G){
                        var H=A.data(this,"marquee")[F].apply(C,D);
                        if(G==0&&H){
                            if(!!H.jquery){
                                B=A([]).add(H)
                                }else{
                                B=H;
                                return false
                                }
                            }else{
                        if(!!H&&!!H.jquery){
                            B=B.add(H)
                            }
                        }
                    });
        return B||this
        }else{
        return this
        }
    }
}else{
    return this.each(function(){
        new A.Marquee(this,E)
        })
    }
};

A.Marquee=function(E,Q){
    Q=A.extend({},A.Marquee.defaults,Q);
    var O=this,M=A(E),F=M.find("> li"),H=-1,G=false,L=false,N=0;
    A.data(M[0],"marquee",O);
    this.pause=function(){
        G=true;
        P()
        };

    this.resume=function(){
        G=false;
        D()
        };

    this.update=function(){
        var R=F.length;
        F=M.find("> li");
        if(R<=1){
            D()
            }
        };

function K(R){
    if(F.filter("."+Q.cssShowing).length>0){
        return false
        }
        var T=F.eq(R);
    if(A.isFunction(Q.beforeshow)){
        Q.beforeshow.apply(O,[M,T])
        }
        var S={
        top:(Q.yScroll=="top"?"-":"+")+T.outerHeight()+"px",
        left:0
    };

    M.data("marquee.showing",true);
    T.addClass(Q.cssShowing);
    T.css(S).animate({
        top:"0px"
    },Q.showSpeed,Q.fxEasingShow,function(){
        if(A.isFunction(Q.show)){
            Q.show.apply(O,[M,T])
            }
            M.data("marquee.showing",false);
        J(T)
        })
    }
    function J(S,R){
    if(L==true){
        return false
        }
        R=R||Q.pauseSpeed;
    if(C(S)){
        setTimeout(function(){
            if(L==true){
                return false
                }
                var V=S.outerWidth(),T=V*-1,U=parseInt(S.css("left"),10);
            S.animate({
                left:T+"px"
                },((V+U)*Q.scrollSpeed),Q.fxEasingScroll,function(){
                I(S)
                })
            },R)
        }else{
        if(F.length>1){
            setTimeout(function(){
                if(L==true){
                    return false
                    }
                    S.animate({
                    top:(Q.yScroll=="top"?"+":"-")+M.innerHeight()+"px"
                    },Q.showSpeed,Q.fxEasingScroll);
                I(S)
                },R)
            }
        }
}
function I(R){
    if(A.isFunction(Q.aftershow)){
        Q.aftershow.apply(O,[M,R])
        }
        R.removeClass(Q.cssShowing);
    B()
    }
    function P(){
    L=true;
    if(M.data("marquee.showing")!=true){
        F.filter("."+Q.cssShowing).dequeue().stop()
        }
    }
function D(){
    L=false;
    if(M.data("marquee.showing")!=true){
        J(F.filter("."+Q.cssShowing),1)
        }
    }
if(Q.pauseOnHover){
    M.hover(function(){
        if(G){
            return false
            }
            P()
        },function(){
        if(G){
            return false
            }
            D()
        })
    }
    function C(R){
    return(R.outerWidth()>M.innerWidth())
    }
    function B(){
    H++;
    if(H>=F.length){
        if(!isNaN(Q.loop)&&Q.loop>0&&(++N>=Q.loop)){
            return false
            }
            H=0
        }
        K(H)
    }
    if(A.isFunction(Q.init)){
    Q.init.apply(O,[M,Q])
    }
    B()
};

A.Marquee.defaults={
    yScroll:"top",
    showSpeed:850,
    scrollSpeed:12,
    pauseSpeed:5000,
    pauseOnHover:true,
    loop:-1,
    fxEasingShow:"swing",
    fxEasingScroll:"linear",
    cssShowing:"marquee-showing",
    init:null,
    beforeshow:null,
    show:null,
    aftershow:null
}
})(jQuery);