// jQuery Plugins //////////////////////////////////////////////////////////////////////////

// Mouse wheel Plugin ////////////////////////////////////////////////////////
(function($) {
$.fn.extend({
	mousewheel: function(f) {
		if (!f.guid) f.guid = $.event.guid++;
		if (!$.event._mwCache) $.event._mwCache = [];
		
		return this.each( function() {
			if (this._mwHandlers) return this._mwHandlers.push(f);
			else this._mwHandlers = [];
			
			this._mwHandlers.push(f);
			
			var s = this;
			
			this._mwHandler = function(e) {
				e = $.event.fix(e || window.event);
				var delta = 0, returnValue = true;
				
				if (e.wheelDelta)  delta = e.wheelDelta/120;
				if (e.detail)      delta = -e.detail/3;
				if (window.opera)  delta = -e.wheelDelta;
				
				for (var i=0; i<s._mwHandlers.length; i++)
					if (s._mwHandlers[i])
						if ( s._mwHandlers[i].call(s, e, delta) === false ) {
							returnValue = false;
							e.preventDefault();
							e.stopPropagation();
						}
				
				return returnValue;
			};
			
			if (this.addEventListener)
				if ($.browser.mozilla) this.addEventListener('DOMMouseScroll', this._mwHandler, false);
				else                   this.addEventListener('mousewheel',     this._mwHandler, false);
			else
				$.event.add(this, 'mousewheel', this._mwHandler);
			
			$.event._mwCache.push( $(this) );
		});
	},
	
	unmousewheel: function(f) {
		return this.each( function() {
			if ( f && this._mwHandlers ) {
				for (var i=0; i<this._mwHandlers.length; i++)
					if (this._mwHandlers[i] && this._mwHandlers[i].guid == f.guid)
						delete this._mwHandlers[i];
			} else {
				if (this.addEventListener)
					if ($.browser.mozilla) this.removeEventListener('DOMMouseScroll', this._mwHandler, false);
					else                   this.removeEventListener('mousewheel',     this._mwHandler, false);
				else
					$.event.remove(this, 'mousewheel', this._mwHandler);
					
				this._mwHandlers = this._mwHandler = null;
			}
		});
	}
});
// clean-up
$(window).bind('unload', function() {
    var els = $.event._mwCache || [];
	for (var i=0; i<els.length; i++)
	    els[i].unmousewheel();
});
	


// Query String Plugin ////////////////////////////////////////////////////////
jQuery.parseQstr = function( str ) {
    var q = {};
    var match = str.match(/([^?#]*)(#.*)?$/);
    if (!match) return {};
    str = match[0];
    var p = str.split(/[&;]/);
    for (var i=0; i<p.length; i++) {
        var n = p[i].split('=');
        var k = decodeURIComponent(n[0]);
        if (n.length == 2) var v = decodeURIComponent(n[1]);
        else var v = k;
        if (typeof q[k] == 'undefined') q[k] = v;
        else {
            var a = eval(q[k]);
            a.push(v);
            q[k] = a;
        }
    }
    return q;
}

jQuery.objToQstr = function ( obj ) {
    var str = '';
    $.each( obj, function(key, val) {
        str+= encodeURIComponent(key)+'='+encodeURIComponent(val) + '&';
    });
    return str.replace(/&$/,'');
}

// Centering Plugin ////////////////////////////////////////////////////////
jQuery.fn.vcenter = function() {
    return this.each( function() {
        var $obj = $(this);
        var $p = $obj.parent();
        
        var t = parseInt( ($p.height() - $obj.height()) / 2 );
        if( $obj.css('position').toLowerCase() == 'absolute' ) {
            $obj.css('top', t+'px');
        }
        else {
            $obj.css('marginTop', t+'px');
        }
        
    });
}

jQuery.fn.center = function() {
    return this.each( function() {
        var $obj = $(this);
        var $p = $obj.parent();
        
        var l = parseInt( ($p.width() - $obj.width()) / 2 );
        if( $obj.css('position').toLowerCase() == 'absolute' ) {
            $obj.css('left', l+'px');
        }
        else {
            $obj.css('margin-left', l+'px');
        }
        
    });
}


// Color Formatting Plugin//////////////////////////////////////////////////////////
// Takes color in hexadecimal notation and returns [r, g, b] 
jQuery.hex2rgb = function(color) {
    var rgb;
    color = color.replace(/^#/,'');
    if( color.length == 6 ) {
        rgb = [
            parseInt(color.substring(0,2), 16),
            parseInt(color.substring(2,4), 16), 
            parseInt(color.substring(4,6), 16)
        ];
    }
    else if( color.length == 3 ) {
        rgb = [
            parseInt(color.substring(0,1), 16),
            parseInt(color.substring(1,2), 16), 
            parseInt(color.substring(2,3), 16)
        ];
    } else {
        rgb = [0,0,0];
    }
    return rgb;
}
// Takes r, g, b and returns the hexadecimal version of a color
jQuery.rgb2html = function(R,G,B) {return $.toHex(R) + $.toHex(G) + $.toHex(B)}

// Converts a decimal number to hexadecimal
jQuery.toHex = function(N) {
 if (N==null) return "00";
 N=parseInt(N); if (N==0 || isNaN(N)) return "00";
 N=Math.max(0,N); N=Math.min(N,255); N=Math.round(N);
 return "0123456789ABCDEF".charAt((N-N%16)/16)
      + "0123456789ABCDEF".charAt(N%16);
}

// Takes a color string returned by the browser and parses it into a hexadecimal color string
jQuery.colorFormat = function(color) {
    if( !color ) return;
    color = color.replace('#','');
    var returnColour = "";
    if(color != "transparent") {
        if(color.substr(0, 3) == "rgb") {
            var a = color.replace(/[^0-9|,]/g,'').split(',');
            returnColour = $.rgb2html(a[0],a[1],a[2]);            
        }        
        else if(color.length == 3) {            
            returnColour = color.substring(0, 1) + 
                    color.substring(0, 1) + 
                    color.substring(1, 2) +
                    color.substring(1, 2) +
                    color.substring(2, 3) + 
                    color.substring(2, 3);
        }        
        else {
            returnColour = color;            
        }        
    }
    else if( color == "transparent" ) {
        returnColour = 'transparent';
    }    
    return returnColour;    
}

// Rollover Plugin //////////////////////////////////////////////////////////////////////////
jQuery.rollover = {
    _get_filter : function(obj) { // handle ie6 filter
        if (!$.browser.msie) return obj;
        filter = $(obj).css('filter');
        if( filter )  return obj.filters(0);
        else return obj;
    },
    over: function(e) {
        var obj = this;
        var img = obj;
        var prop = $.data(obj, 'rollover');
        if( img.tagName.toLowerCase() != 'img' ) img = $('img',obj)[0];        
        if( prop.saved_src ) return;
        img = $.rollover._get_filter(img);
        prop.saved_src = img.src;
        $.data(obj, 'rollover', prop);
        img.src = $.rollover.over_src(img.src);
    },
    textover : function(e) {
        var obj = this;
        var img = obj;
        var prop = $.data(obj, 'rollover');
        if( img.tagName.toLowerCase() != 'img' ) img = $('img',obj)[0];
        if( prop.saved_src ) return;
        img = $.rollover._get_filter(img);
        prop.saved_src = img.src;
        $.data(obj, 'rollover', prop);
        img.src = $.rollover.textover_src(img.src, prop.options);
    },
    over_src: function(src) {
        return src.replace(/\.(\w+)$/, "_over.$1");
    },
    textover_src: function(src, settings ){
        var baseURL = settings.baseURL;
        var filename = src.split('?')[0].split('/').slice(-1)[0];
        var params = {};
        $.each( settings, function(k,v) {
            if( k != 'baseURL' ) params[k] = v;
        });
        var q = $.parseQstr(src);
        $.extend(q,params);
        return baseURL + filename + '?' + $.param(q);
    },
    out : function(e) {
        var obj = this;
        var img = obj;
        var prop = $.data(obj, 'rollover');
        if( $(obj).is('.ignore') ) return;        
        if( img.tagName.toLowerCase() != 'img' ) img = $('img',obj)[0];        
        if( prop.saved_src ) $.rollover._get_filter(img).src = prop.saved_src;
        prop.saved_src = null;
        $.data(obj, 'rollover', prop);
    }    
};
jQuery.fn.rollover = function () {
    return this.each( function(i,obj) {
        $.data(obj, 'rollover', {saved_src: null});
        $(obj).unbind('mouseover', $.rollover.over).unbind('mouseout', $.rollover.out).
            mouseover($.rollover.over).mouseout($.rollover.out);        
        $(obj).preloadImg();
    });
};
jQuery.fn.textover = function (options) {
    var defaults = {
        baseURL: '/buttons/'
    }
    return this.each( function(i,obj) {
        options = $.extend({}, defaults, options || {});
        if( !options.color ) {
            var c = $(obj).addClass('hover').css('color') || '000000';
            $(obj).removeClass('hover');
            c = '#' + $.colorFormat(c);
            options.color = c;
        }
        $.data(obj, 'rollover', {
            saved_src: null,
            options: options
        });
        $(obj).unbind('mouseover', $.rollover.textover).unbind('mouseout', $.rollover.out).
            mouseover($.rollover.textover).mouseout($.rollover.out);
        $(obj).preloadImg();
    });
};
jQuery.fn.rolloverUnbind = function () {
    return this.each( function(i,obj) {
        $(obj).unbind('mouseover', $.rollover.over);
        $(obj).unbind('mouseover', $.rollover.textover);
        $(obj).unbind('mouseout', $.rollover.out);        
        $.removeData(obj, 'rollover');
    });
};

// Preloads rollover images according to rollover replacement rules
jQuery.fn.preloadImg = function () {
    return this.each( function() {
        if( typeof(this.rollover) == 'undefined' || !this.rollover ) return;
        var img = this;
        if( img.tagName.toLowerCase() != 'img' ) img = $('img',this)[0];
        var preloader = new Image();
        if( img.src.search('image.php') == -1 )
            preloader.src = $.rollover.over_src(img.src);
        else
            preloader.src = $.rollover.textover_src(img.src,this.rollover.settings);   

    });
};


// Image Replacement Plugin//////////////////////////////////////////////////////////

// Uses image generator to replace the element's text with an image
jQuery.fn.imageReplace = function (settings) {
    var settings = $.extend({},  settings);
    baseURL = '/buttons/';
    return this.each( function() {
        $obj = $(this);
        var text = $.trim($obj.text());
        if( text.length < 1 ) return;
        if( text == '&nbsp;') return;
       
        var options = $.extend({}, settings);
        if( !options.color ) options.color = '#' + ($.colorFormat($obj.css('color')|| '000000'));
        if( !options.size ) options.size = parseInt($obj.css('font-size'));
        if( $obj.css('text-transform') == 'uppercase' ) text = text.toUpperCase();
        else if( $obj.css('text-transform') == 'lowercase' ) text = text.toLowerCase();
        if( !options.align ) options.align = $obj.css('text-align');
        var option_string = '';
        $.each(options, function(key,val) {
            option_string += '&'+encodeURIComponent(key)+'='+encodeURIComponent(val);
        }); 
        option_string = option_string.replace(/^&/,'');
        $obj.empty().append('<img src="'+ baseURL + encodeURIComponent(text)+'.png?' + option_string + '" alt="'+text+'">');
    });
}

})(jQuery);

///////////////////////////////////////////////////

$(function(){
    // ie6 pngs
    if ($.fn.ifixpng) $('#header, #nav-menu').ifixpng();

    // Image Replacement
    $('h1:not(.main-title), h1:not(.main-title) a', '#header').imageReplace({bg: '#000000'});
    $('h2.title a, h2.title, h3.title').imageReplace({bg: '#000000'});

    // Make text smaller for long headers
    $('#header .title').each(function(){        
        var text= $(this).text(); var size; var wrap = 1000;
        if( text.length > 20 ) {
            size = 20; wrap = 60;
        } else size = 38;
        $(this).imageReplace({bg: '#000000', size: size, wrap: wrap});
    });
    
    // Rounded Corners
    $('.info-box').each(function(){
        $(this).wrapInner('<div class="rounded-content"></div>');
        $('.rounded-content', this).prepend('<div class="rounded-t"></div>');
        $(this).append('<div class="rounded-b"><div></div></div>');
    }).click(function(){ // click box to go to HERE link
        var $link = $(this).find('a').eq(0);
        if( $link.length ) window.location.href = $link[0].href;
    });

    $('#home-nav li a').hover(
        function() {
            $(this).css('background-image', 'url(/media/img/home_menu_over.png)'); 
        },
        function() {
            $(this).css('background-image', 'url(/media/img/home_menu.png)'); 
        }
    );
    var preload = new Image(); preload.src = '/media/img/home_menu_over.png';
});
// Generate 32 char random id 
function gen_id() {
    var id = ""
    for (var i=0; i < 32; i++) {
        id += Math.floor(Math.random() * 16).toString(16); 
    }
    return id
}

// Add upload progress for multipart forms.
$(function() {
    $('form[@enctype=multipart/form-data]').submit(function(){ 
        // First make sure we're actually uploading something.
        var has_upload_data = false;
        $('input[@type=file]',this).each(function() {
            if (this.value) has_upload_data = true;
        });
        if (!has_upload_data) return true;

        // Prevent multiple submits
        if ($.data(this, 'submitted')) return false;

        var freq = 5000; // freqency of update in ms
        var id = gen_id(); // id for this upload so we can fetch progress info.
        var progress_url = '/upload_progress/'; // ajax view serving progress info

        // Append X-Progress-ID id form action
        this.action += (this.action.indexOf('?') == -1 ? '?' : '&') + 'X-Progress-ID=' + id;
        
        var $progress = $('<div id="upload-progress" class="upload-progress"></div>').
            appendTo(document.body).append('<div class="progress-container"><span class="progress-info">uploading 0%</span><div class="progress-bar"></div></div>');
        
        // progress bar position
        $progress.css({
            position: ($.browser.msie && $.browser.version < 7 )? 'absolute' : 'fixed',  
            left: '50%', marginLeft: 0-($progress.width()/2), bottom: '20%'
        }).show();

        // Update progress bar
        function update_progress_info() {
            $progress.show();
            $.getJSON(progress_url, {'X-Progress-ID': id}, function(data, status){
                if (data) {
                    var progress = parseInt(data.uploaded) / parseInt(data.length);
                    var width = $progress.find('.progress-container').width()
                    var progress_width = width * progress;
                    $progress.find('.progress-bar').width(progress_width);
                    $progress.find('.progress-info').text('uploading ' + parseInt(progress*100) + '%');
                }
                window.setTimeout(update_progress_info, freq);
            });
        };
        window.setTimeout(update_progress_info, freq);

        $.data(this, 'submitted', true); // mark form as submitted.
    });
});


$(function() {
    // Scroll panes
    var scroll_options = {
        showArrows:  true,
        dragMinHeight: 20,
        dragMaxHeight: 20,
        scrollbarWidth: 12,
        scrollbarMargin: 4,
        animateTo: true,
        animateInterval: 50,
        animateStep: 2
    };
    if ( !($.browser.msie && $.browser.version < 7)) {
        $('#bio, .media #images').css('overflow', 'hidden').jScrollPane(scroll_options);
        $('.video-menu').css('overflow', 'hidden').jScrollPane(scroll_options).parent().css({
            border: 'ridge 1px #222'
        });
    }

    // Delete buttons
    $('a.deletelink').click( function() {
        var message;
        if (this.title) message = this.title;
        else message = 'Are you sure you want to delete this item?';
        return confirm(message);
    }); 
});