/*
 ### jQuery Star Rating Plugin v3.12 - 2009-04-16 ###
 * Home: http://www.fyneworks.com/jquery/star-rating/
 * Code: http://code.google.com/p/jquery-star-rating-plugin/
 *
    * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 ###
*/

/*# AVOID COLLISIONS #*/
;if(window.jQuery) (function($){
/*# AVOID COLLISIONS #*/

    // IE6 Background Image Fix
    if ($.browser.msie) try { document.execCommand("BackgroundImageCache", false, true)} catch(e) { };
    // Thanks to http://www.visualjquery.com/rating/rating_redux.html

    // plugin initialization
    $.fn.rating = function(options){
        if(this.length==0) return this; // quick fail

        // Handle API methods
        if(typeof arguments[0]=='string'){
            // Perform API methods on individual elements
            if(this.length>1){
                var args = arguments;
                return this.each(function(){
                    $.fn.rating.apply($(this), args);
    });
            };
            // Invoke API method handler
            $.fn.rating[arguments[0]].apply(this, $.makeArray(arguments).slice(1) || []);
            // Quick exit...
            return this;
        };

        // Initialize options for this call
        var options = $.extend(
            {}/* new object */,
            $.fn.rating.options/* default options */,
            options || {} /* just-in-time options */
        );

        // Allow multiple controls with the same name by making each call unique
        $.fn.rating.calls++;

        // loop through each matched element
        this
         .not('.star-rating-applied')
            .addClass('star-rating-applied')
        .each(function(){

            // Load control parameters / find context / etc
            var control, input = $(this);
            var eid = (this.name || 'unnamed-rating').replace(/\[|\]/g, '_').replace(/^\_+|\_+$/g,'');
            var context = $(this.form || document.body);

            // FIX: http://code.google.com/p/jquery-star-rating-plugin/issues/detail?id=23
            var raters = context.data('rating');
            if(!raters || raters.call!=$.fn.rating.calls) raters = { count:0, call:$.fn.rating.calls };
            var rater = raters[eid];

            // if rater is available, verify that the control still exists
            if(rater) control = rater.data('rating');

            if(rater && control)//{// save a byte!
                // add star to control if rater is available and the same control still exists
                control.count++;

            //}// save a byte!
            else{
                // create new control if first star or control element was removed/replaced

                // Initialize options for this raters
                control = $.extend(
                    {}/* new object */,
                    options || {} /* current call options */,
                    ($.metadata? input.metadata(): ($.meta?input.data():null)) || {}, /* metadata options */
                    { count:0, stars: [], inputs: [] }
                );

                // increment number of rating controls
                control.serial = raters.count++;

                // create rating element
                rater = $('<span class="star-rating-control"/>');
                input.before(rater);

                // Mark element for initialization (once all stars are ready)
                rater.addClass('rating-to-be-drawn');

                // Accept readOnly setting from 'disabled' property
                if(input.attr('disabled')) control.readOnly = true;

                // Create 'cancel' button
                rater.append(
                    control.cancel = $('<div class="rating-cancel"><a title="' + control.cancel + '">' + control.cancelValue + '</a></div>')
                    .mouseover(function(){
                        $(this).rating('drain');
                        $(this).addClass('star-rating-hover');
                        //$(this).rating('focus');
                    })
                    .mouseout(function(){
                        $(this).rating('draw');
                        $(this).removeClass('star-rating-hover');
                        //$(this).rating('blur');
                    })
                    .click(function(){
                     $(this).rating('select');
                    })
                    .data('rating', control)
                );

            }; // first element of group

            // insert rating star
            var star = $('<div class="star-rating rater-'+ control.serial +'"><a title="' + (this.title || this.value) + '">' + this.value + '</a></div>');
            rater.append(star);

            // inherit attributes from input element
            if(this.id) star.attr('id', this.id);
            if(this.className) star.addClass(this.className);

            // Half-stars?
            if(control.half) control.split = 2;

            // Prepare division control
            if(typeof control.split=='number' && control.split>0){
                var stw = ($.fn.width ? star.width() : 0) || control.starWidth;
                var spi = (control.count % control.split), spw = Math.floor(stw/control.split);
                star
                // restrict star's width and hide overflow (already in CSS)
                .width(spw)
                // move the star left by using a negative margin
                // this is work-around to IE's stupid box model (position:relative doesn't work)
                .find('a').css({ 'margin-left':'-'+ (spi*spw) +'px' })
            };

            // readOnly?
            if(control.readOnly)//{ //save a byte!
                // Mark star as readOnly so user can customize display
                star.addClass('star-rating-readonly');
            //}  //save a byte!
            else//{ //save a byte!
             // Enable hover css effects
                star.addClass('star-rating-live')
                 // Attach mouse events
                    .mouseover(function(){
                        $(this).rating('fill');
                        $(this).rating('focus');
                    })
                    .mouseout(function(){
                        $(this).rating('draw');
                        $(this).rating('blur');
                    })
                    .click(function(){
                        $(this).rating('select');
                    })
                ;
            //}; //save a byte!

            // set current selection
            if(this.checked)    control.current = star;

            // hide input element
            input.hide();

            // backward compatibility, form element to plugin
            input.change(function(){
    $(this).rating('select');
   });

            // attach reference to star to input element and vice-versa
            star.data('rating.input', input.data('rating.star', star));

            // store control information in form (or body when form not available)
            control.stars[control.stars.length] = star[0];
            control.inputs[control.inputs.length] = input[0];
            control.rater = raters[eid] = rater;
            control.context = context;

            input.data('rating', control);
            rater.data('rating', control);
            star.data('rating', control);
            context.data('rating', raters);
  }); // each element

        // Initialize ratings (first draw)
        $('.rating-to-be-drawn').rating('draw').removeClass('rating-to-be-drawn');

        return this; // don't break the chain...
    };

    /*--------------------------------------------------------*/

    /*
        ### Core functionality and API ###
    */
    $.extend($.fn.rating, {
        // Used to append a unique serial number to internal control ID
        // each time the plugin is invoked so same name controls can co-exist
        calls: 0,

        focus: function(){
            var control = this.data('rating'); if(!control) return this;
            if(!control.focus) return this; // quick fail if not required
            // find data for event
            var input = $(this).data('rating.input') || $( this.tagName=='INPUT' ? this : null );
   // focus handler, as requested by focusdigital.co.uk
            if(control.focus) control.focus.apply(input[0], [input.val(), $('a', input.data('rating.star'))[0]]);
        }, // $.fn.rating.focus

        blur: function(){
            var control = this.data('rating'); if(!control) return this;
            if(!control.blur) return this; // quick fail if not required
            // find data for event
            var input = $(this).data('rating.input') || $( this.tagName=='INPUT' ? this : null );
   // blur handler, as requested by focusdigital.co.uk
            if(control.blur) control.blur.apply(input[0], [input.val(), $('a', input.data('rating.star'))[0]]);
        }, // $.fn.rating.blur

        fill: function(){ // fill to the current mouse position.
            var control = this.data('rating'); if(!control) return this;
            // do not execute when control is in read-only mode
            if(control.readOnly) return;
            // Reset all stars and highlight them up to this element
            this.rating('drain');
            this.prevAll().addBack().filter('.rater-'+ control.serial).addClass('star-rating-hover');
        },// $.fn.rating.fill

        drain: function() { // drain all the stars.
            var control = this.data('rating'); if(!control) return this;
            // do not execute when control is in read-only mode
            if(control.readOnly) return;
            // Reset all stars
            control.rater.children().filter('.rater-'+ control.serial).removeClass('star-rating-on').removeClass('star-rating-hover');
        },// $.fn.rating.drain

        draw: function(){ // set value and stars to reflect current selection
            var control = this.data('rating'); if(!control) return this;
            // Clear all stars
            this.rating('drain');
            // Set control value
            if(control.current){
                control.current.data('rating.input').attr('checked','checked');
                control.current.prevAll().addBack().filter('.rater-'+ control.serial).addClass('star-rating-on');
            }
            else
             $(control.inputs).removeAttr('checked');
            // Show/hide 'cancel' button
            control.cancel[control.readOnly || control.required?'hide':'show']();
            // Add/remove read-only classes to remove hand pointer
            this.siblings()[control.readOnly?'addClass':'removeClass']('star-rating-readonly');
        },// $.fn.rating.draw

        select: function(value){ // select a value
            var control = this.data('rating'); if(!control) return this;
            // do not execute when control is in read-only mode
            if(control.readOnly) return;
            // clear selection
            control.current = null;
            // programmatically (based on user input)
            if(typeof value!='undefined'){
             // select by index (0 based)
                if(typeof value=='number')
              return $(control.stars[value]).rating('select');
                // select by literal value (must be passed as a string
                if(typeof value=='string')
                    //return
                    $.each(control.stars, function(){
                        if($(this).data('rating.input').val()==value) $(this).rating('select');
                    });
            }
            else
                control.current = this[0].tagName=='INPUT' ?
                 this.data('rating.star') :
                    (this.is('.rater-'+ control.serial) ? this : null);

            // Update rating control state
            this.data('rating', control);
            // Update display
            this.rating('draw');
            // find data for event
            var input = $( control.current ? control.current.data('rating.input') : null );
            // click callback, as requested here: http://plugins.jquery.com/node/1655
            if(control.callback) control.callback.apply(input[0], [input.val(), $('a', control.current)[0]]);// callback event
        },// $.fn.rating.select

        readOnly: function(toggle, disable){ // make the control read-only (still submits value)
            var control = this.data('rating'); if(!control) return this;
            // setread-only status
            control.readOnly = toggle || toggle==undefined ? true : false;
            // enable/disable control value submission
            if(disable) $(control.inputs).attr("disabled", "disabled");
            else                 $(control.inputs).removeAttr("disabled");
            // Update rating control state
            this.data('rating', control);
            // Update display
            this.rating('draw');
        },// $.fn.rating.readOnly

        disable: function(){ // make read-only and never submit value
            this.rating('readOnly', true, true);
        },// $.fn.rating.disable

        enable: function(){ // make read/write and submit value
            this.rating('readOnly', false, false);
        }// $.fn.rating.select

 });

    /*--------------------------------------------------------*/

    /*
        ### Default Settings ###
        eg.: You can override default control like this:
        $.fn.rating.options.cancel = 'Clear';
    */
    $.fn.rating.options = { //$.extend($.fn.rating, { options: {
            cancel: 'Cancel Rating',   // advisory title for the 'cancel' link
            cancelValue: '',           // value to submit when user click the 'cancel' link
            split: 0,                  // split the star into how many parts?

            // Width of star image in case the plugin can't work it out. This can happen if
            // the jQuery.dimensions plugin is not available OR the image is hidden at installation
            starWidth: 16//,

            //NB.: These don't need to be pre-defined (can be undefined/null) so let's save some code!
            //half:     false,         // just a shortcut to control.split = 2
            //required: false,         // disables the 'cancel' button so user can only select one of the specified values
            //readOnly: false,         // disable rating plugin interaction/ values cannot be changed
            //focus:    function(){},  // executed when stars are focused
            //blur:     function(){},  // executed when stars are focused
            //callback: function(){},  // executed when a star is clicked
 }; //} });


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})(jQuery);
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