/*
* jQuery clueTip plugin
* Version 1.0.4  (June 28, 2009)
* @requires jQuery v1.2.6+
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
*/

/*
*
* Full list of options/settings can be found at the bottom of this file and at http://plugins.learningjquery.com/cluetip/
*
* Examples can be found at http://plugins.learningjquery.com/cluetip/demo/
*
*/

;(function($) { 
    $.cluetip = {version: '1.0.4'};
    var $cluetip, $cluetipInner, $cluetipOuter, $cluetipTitle, $cluetipArrows, $cluetipWait, $dropShadow, imgCount;
    $.fn.cluetip = function(js, options) {
        if (typeof js == 'object') {
            options = js;
            js = null;
        }
        if (js == 'destroy') {
            return this.unbind('.cluetip');
        }
        return this.each(function(index) {
            var link = this, $this = $(this);

            // support metadata plugin (v1.0 and 2.0)
            var opts = $.extend(true, {}, $.fn.cluetip.defaults, options || {}, $.metadata ? $this.metadata() : $.meta ? $this.data() : {});

            // start out with no contents (for ajax activation)
            var cluetipContents = false;
            var cluezIndex = +opts.cluezIndex;
            $this.data('thisInfo', {title: link.title, zIndex: cluezIndex});
            var isActive = false, closeOnDelay = 0;

            // create the cluetip divs
            if (!$('#cluetip').length) {
                $(['<div id="cluetip">',
                '<div id="cluetip-outer">',
                '<h3 id="cluetip-title"></h3>',
                '<div id="cluetip-inner"></div>',
                '</div>',
                '<div id="cluetip-extra"></div>',
                '<div id="cluetip-arrows" class="cluetip-arrows"></div>',
                '</div>'].join(''))
                [insertionType](insertionElement).hide();

                $cluetip = $('#cluetip').css({position: 'absolute'});
                $cluetipOuter = $('#cluetip-outer').css({position: 'relative', zIndex: cluezIndex});
                $cluetipInner = $('#cluetip-inner');
                $cluetipTitle = $('#cluetip-title');        
                $cluetipArrows = $('#cluetip-arrows');
                $cluetipWait = $('<div id="cluetip-waitimage"></div>')
                .css({position: 'absolute'}).insertBefore($cluetip).hide();
            }
            var dropShadowSteps = (opts.dropShadow) ? +opts.dropShadowSteps : 0;
            if (!$dropShadow) {
                $dropShadow = $([]);
                for (var i=0; i < dropShadowSteps; i++) {
                    $dropShadow = $dropShadow.add($('<div></div>').css({zIndex: cluezIndex-1, opacity:.1, top: 1+i, left: 1+i}));
                };
                $dropShadow.css({position: 'absolute', backgroundColor: '#000'})
                .prependTo($cluetip);
            }
            var tipAttribute = $this.attr(opts.attribute), ctClass = opts.cluetipClass;
            if (!tipAttribute && !opts.splitTitle && !js) return true;
            // if hideLocal is set to true, on DOM ready hide the local content that will be displayed in the clueTip
            if (opts.local && opts.localPrefix) {tipAttribute = opts.localPrefix + tipAttribute;}
            if (opts.local && opts.hideLocal) { $(tipAttribute + ':first').hide(); }
            var tOffset = parseInt(opts.topOffset, 10), lOffset = parseInt(opts.leftOffset, 10);
            // vertical measurement variables
            var tipHeight, wHeight,
            defHeight = isNaN(parseInt(opts.height, 10)) ? 'auto' : (/\D/g).test(opts.height) ? opts.height : opts.height + 'px';
            var sTop, linkTop, posY, tipY, mouseY, baseline;
            // horizontal measurement variables
            var tipInnerWidth = parseInt(opts.width, 10) || 275,
            tipWidth = tipInnerWidth + (parseInt($cluetip.css('paddingLeft'),10)||0) + (parseInt($cluetip.css('paddingRight'),10)||0) + dropShadowSteps,
            linkWidth = this.offsetWidth,
            linkLeft, posX, tipX, mouseX, winWidth;

            // parse the title
            var tipParts;
            var tipTitle = (opts.attribute != 'title') ? $this.attr(opts.titleAttribute) : '';
            if (opts.splitTitle) {
                if(tipTitle == undefined) {tipTitle = '';}
                tipParts = tipTitle.split(opts.splitTitle);
                tipTitle = tipParts.shift();
            }
            if (opts.escapeTitle) {
                tipTitle = tipTitle.replace(/&/g,'&amp;').replace(/>/g,'&gt;').replace(/</g,'&lt;');
            }

            var localContent;
            function returnFalse() { return false; }

            /***************************************      
            * ACTIVATION
            ****************************************/

            //activate clueTip
            var activate = function(event) {
                if (!opts.onActivate($this)) {
                    return false;
                }
                isActive = true;
                $cluetip.removeClass().css({width: tipInnerWidth});
                if (tipAttribute == $this.attr('href')) {
                    $this.css('cursor', opts.cursor);
                }
                if (opts.hoverClass) {
                    $this.addClass(opts.hoverClass);
                }
                linkTop = posY = $this.offset().top;
                linkLeft = $this.offset().left;
                mouseX = event.pageX;
                mouseY = event.pageY;
                if (link.tagName.toLowerCase() != 'area') {
                    sTop = $(document).scrollTop();
                    winWidth = $(window).width();
                }
                // position clueTip horizontally
                if (opts.positionBy == 'fixed') {
                    posX = linkWidth + linkLeft + lOffset;
                    $cluetip.css({left: posX});
                } else {
                    posX = (linkWidth > linkLeft && linkLeft > tipWidth)
                    || linkLeft + linkWidth + tipWidth + lOffset > winWidth 
                    ? linkLeft - tipWidth - lOffset 
                    : linkWidth + linkLeft + lOffset;
                    if (link.tagName.toLowerCase() == 'area' || opts.positionBy == 'mouse' || linkWidth + tipWidth > winWidth) { // position by mouse
                        if (mouseX + 20 + tipWidth > winWidth) {  
                            $cluetip.addClass(' cluetip-' + ctClass);
                            posX = (mouseX - tipWidth - lOffset) >= 0 ? mouseX - tipWidth - lOffset - parseInt($cluetip.css('marginLeft'),10) + parseInt($cluetipInner.css('marginRight'),10) :  mouseX - (tipWidth/2);
                        } else {
                            posX = mouseX + lOffset;
                        }
                    }
                    var pY = posX < 0 ? event.pageY + tOffset : event.pageY;
                    $cluetip.css({
                        left: (posX > 0 && opts.positionBy != 'bottomTop') ? posX : (mouseX + (tipWidth/2) > winWidth) ? winWidth/2 - tipWidth/2 : Math.max(mouseX - (tipWidth/2),0),
                        zIndex: $this.data('thisInfo').zIndex
                    });
                    $cluetipArrows.css({zIndex: $this.data('thisInfo').zIndex+1});
                }
                wHeight = $(window).height();

                /***************************************
                * load a string from cluetip method's first argument
                ***************************************/
                if (js) {
                    if (typeof js == 'function') {
                        js = js(link);
                    }
                    $cluetipInner.html(js);
                    cluetipShow(pY);
                }
                /***************************************
                * load the title attribute only (or user-selected attribute). 
                * clueTip title is the string before the first delimiter
                * subsequent delimiters place clueTip body text on separate lines
                ***************************************/

                else if (tipParts) {
                    var tpl = tipParts.length;
                    $cluetipInner.html(tipParts[0]);
                    if (tpl > 1) {
                        for (var i=1; i < tpl; i++){
                            $cluetipInner.append('<div class="split-body">' + tipParts[i] + '</div>');
                        }          
                    }
                    cluetipShow(pY);
                }
                /***************************************
                * load external file via ajax          
                ***************************************/

                else if (!opts.local && tipAttribute.indexOf('#') != 0) {
                    if (/\.(jpe?g|tiff?|gif|png)$/i.test(tipAttribute)) {
                        $cluetipInner.html('<img src="' + tipAttribute + '" alt="' + tipTitle + '" />');
                        cluetipShow(pY);
                    } else if (cluetipContents && opts.ajaxCache) {
                        $cluetipInner.html(cluetipContents);
                        cluetipShow(pY);
                    } else {
                        var optionBeforeSend = opts.ajaxSettings.beforeSend,
                        optionError = opts.ajaxSettings.error,
                        optionSuccess = opts.ajaxSettings.success,
                        optionComplete = opts.ajaxSettings.complete;
                        var ajaxSettings = {
                            cache: false, // force requested page not to be cached by browser
                            url: tipAttribute,
                            beforeSend: function(xhr) {
                                if (optionBeforeSend) {optionBeforeSend.call(link, xhr, $cluetip, $cluetipInner);}
                                $cluetipOuter.children().empty();
                                if (opts.waitImage) {
                                    $cluetipWait
                                    .css({top: mouseY+20, left: mouseX+20, zIndex: $this.data('thisInfo').zIndex-1})
                                    .show();
                                }
                            },
                            error: function(xhr, textStatus) {
                                if (isActive) {
                                    if (optionError) {
                                        optionError.call(link, xhr, textStatus, $cluetip, $cluetipInner);
                                    } else {
                                        $cluetipInner.html('<i>sorry, the contents could not be loaded</i>');  
                                    }
                                }
                            },
                            success: function(data, textStatus) {       
                                cluetipContents = opts.ajaxProcess.call(link, data);
                                if (isActive) {
                                    if (optionSuccess) {optionSuccess.call(link, data, textStatus, $cluetip, $cluetipInner);}
                                    $cluetipInner.html(cluetipContents);
                                }
                            },
                            complete: function(xhr, textStatus) {
                                if (optionComplete) {optionComplete.call(link, xhr, textStatus, $cluetip, $cluetipInner);}
                                imgCount = $('#cluetip-inner img').length;
                                if (imgCount && !$.browser.opera) {
                                    $('#cluetip-inner img').bind('load error', function() {
                                        imgCount--;
                                        if (imgCount<1) {
                                            $cluetipWait.hide();
                                            if (isActive) cluetipShow(pY);
                                        }
                                    }); 
                                } else {
                                    $cluetipWait.hide();
                                    if (isActive) { cluetipShow(pY); }
                                } 
                            }
                        };
                        var ajaxMergedSettings = $.extend(true, {}, opts.ajaxSettings, ajaxSettings);

                        $.ajax(ajaxMergedSettings);
                    }

                    /***************************************
                    * load an element from the same page
                    ***************************************/
                } else if (opts.local) {

                    var $localContent = $(tipAttribute + (/#\S+$/.test(tipAttribute) ? '' : ':eq(' + index + ')')).clone(true).show();
                    $cluetipInner.html($localContent);
                    cluetipShow(pY);
                }
            };

            // get dimensions and options for cluetip and prepare it to be shown
            var cluetipShow = function(bpY) {
                $cluetip.addClass('cluetip-' + ctClass);
                if (opts.truncate) { 
                    var $truncloaded = $cluetipInner.text().slice(0,opts.truncate) + '...';
                    $cluetipInner.html($truncloaded);
                }
                function doNothing() {}; //empty function
                tipTitle ? $cluetipTitle.show().html(tipTitle) : (opts.showTitle) ? $cluetipTitle.show().html('&nbsp;') : $cluetipTitle.hide();
                if (opts.sticky) {
                    var $closeLink = $('<div id="cluetip-close"><a href="#">' + opts.closeText + '</a></div>');
                    (opts.closePosition == 'bottom') ? $closeLink.appendTo($cluetipInner) : (opts.closePosition == 'title') ? $closeLink.prependTo($cluetipTitle) : $closeLink.prependTo($cluetipInner);
                    $closeLink.bind('click.cluetip', function() {
                        cluetipClose();
                        return false;
                    });
                    if (opts.mouseOutClose) {
                        $cluetip.bind('mouseleave.cluetip', function() {
                            cluetipClose();
                        });
                    } else {
                        $cluetip.unbind('mouseleave.cluetip');
                    }
                }
                // now that content is loaded, finish the positioning 
                var direction = '';
                $cluetipOuter.css({zIndex: $this.data('thisInfo').zIndex, overflow: defHeight == 'auto' ? 'visible' : 'auto', height: defHeight});
                tipHeight = defHeight == 'auto' ? Math.max($cluetip.outerHeight(),$cluetip.height()) : parseInt(defHeight,10);   
                tipY = posY;
                baseline = sTop + wHeight;
                if (opts.positionBy == 'fixed') {
                    tipY = posY - opts.dropShadowSteps + tOffset;
                } else if ( (posX < mouseX && Math.max(posX, 0) + tipWidth > mouseX) || opts.positionBy == 'bottomTop') {
                    if (posY + tipHeight + tOffset > baseline && mouseY - sTop > tipHeight + tOffset) { 
                        tipY = mouseY - tipHeight - tOffset;
                        direction = 'top';
                    } else { 
                        tipY = mouseY + tOffset;
                        direction = 'bottom';
                    }
                } else if ( posY + tipHeight + tOffset > baseline ) {
                    tipY = (tipHeight >= wHeight) ? sTop : baseline - tipHeight - tOffset;
                } else if ($this.css('display') == 'block' || link.tagName.toLowerCase() == 'area' || opts.positionBy == "mouse") {
                    tipY = bpY - tOffset;
                } else {
                    tipY = posY - opts.dropShadowSteps;
                }
                if (direction == '') {
                    posX < linkLeft ? direction = 'left' : direction = 'right';
                }
                $cluetip.css({top: tipY + 'px'}).removeClass().addClass('clue-' + direction + '-' + ctClass).addClass(' cluetip-' + ctClass);
                if (opts.arrows) { // set up arrow positioning to align with element
                    var bgY = (posY - tipY - opts.dropShadowSteps);
                    $cluetipArrows.css({top: (/(left|right)/.test(direction) && posX >=0 && bgY > 0) ? bgY + 'px' : /(left|right)/.test(direction) ? 0 : ''}).show();
                } else {
                    $cluetipArrows.hide();
                }

                // (first hide, then) ***SHOW THE CLUETIP***
                $dropShadow.hide();
                $cluetip.hide()[opts.fx.open](opts.fx.open != 'show' && opts.fx.openSpeed);
                if (opts.dropShadow) { $dropShadow.css({height: tipHeight, width: tipInnerWidth, zIndex: $this.data('thisInfo').zIndex-1}).show(); }
                if ($.fn.bgiframe) { $cluetip.bgiframe(); }
                // delayed close (not fully tested)
                if (opts.delayedClose > 0) {
                    closeOnDelay = setTimeout(cluetipClose, opts.delayedClose);
                }
                // trigger the optional onShow function
                opts.onShow.call(link, $cluetip, $cluetipInner);
            };

            /***************************************
            =INACTIVATION
            -------------------------------------- */
            var inactivate = function(event) {
                isActive = false;
                $cluetipWait.hide();
                if (!opts.sticky || (/click|toggle/).test(opts.activation) ) {
                    cluetipClose();
                    clearTimeout(closeOnDelay);        
                };
                if (opts.hoverClass) {
                    $this.removeClass(opts.hoverClass);
                }
            };
            // close cluetip and reset some things
            var cluetipClose = function() {
                $cluetipOuter 
                .parent().hide().removeClass();
                opts.onHide.call(link, $cluetip, $cluetipInner);
                $this.removeClass('cluetip-clicked');
                if (tipTitle) {
                    $this.attr(opts.titleAttribute, tipTitle);
                }
                $this.css('cursor','');
                if (opts.arrows) $cluetipArrows.css({top: ''});
            };

            $(document).bind('hideCluetip', function(e) {
                cluetipClose();
            });
            /***************************************
            =BIND EVENTS
            -------------------------------------- */
            // activate by click
            if ( (/click|toggle/).test(opts.activation) ) {
                $this.bind('click.cluetip', function(event) {
                    if ($cluetip.is(':hidden') || !$this.is('.cluetip-clicked')) {
                        activate(event);
                        $('.cluetip-clicked').removeClass('cluetip-clicked');
                        $this.addClass('cluetip-clicked');
                    } else {
                        inactivate(event);
                    }
                    this.blur();
                    return false;
                });
                // activate by focus; inactivate by blur    
            } else if (opts.activation == 'focus') {
                $this.bind('focus.cluetip', function(event) {
                    activate(event);
                });
                $this.bind('blur.cluetip', function(event) {
                    inactivate(event);
                });
                // activate by hover
            } else {
                // clicking is returned false if clickThrough option is set to false
                $this[opts.clickThrough ? 'unbind' : 'bind']('click', returnFalse);
                //set up mouse tracking
                var mouseTracks = function(evt) {
                    if (opts.tracking == true) {
                        var trackX = posX - evt.pageX;
                        var trackY = tipY ? tipY - evt.pageY : posY - evt.pageY;
                        $this.bind('mousemove.cluetip', function(evt) {
                            $cluetip.css({left: evt.pageX + trackX, top: evt.pageY + trackY });
                        });
                    }
                };
                if ($.fn.hoverIntent && opts.hoverIntent) {
                    $this.hoverIntent({
                        sensitivity: opts.hoverIntent.sensitivity,
                        interval: opts.hoverIntent.interval,  
                        over: function(event) {
                            activate(event);
                            mouseTracks(event);
                        }, 
                        timeout: opts.hoverIntent.timeout,  
                        out: function(event) {inactivate(event); $this.unbind('mousemove.cluetip');}
                    });           
                } else {
                    $this.bind('mouseenter.cluetip', function(event) {
                        activate(event);
                        mouseTracks(event);
                    })
                    .bind('mouseleave.cluetip', function(event) {
                        inactivate(event);
                        $this.unbind('mousemove.cluetip');
                    });
                }
                // remove default title tooltip on hover
                $this.bind('mouseenter.cluetip', function(event) {
                    $this.attr('title','');
                })
                .bind('mouseleave.cluetip', function(event) {
                    $this.attr('title', $this.data('thisInfo').title);
                });
            }
        });
    };

    /*
    * options for clueTip
    *
    * each one can be explicitly overridden by changing its value. 
    * for example: $.fn.cluetip.defaults.width = 200; 
    * would change the default width for all clueTips to 200. 
    *
    * each one can also be overridden by passing an options map to the cluetip method.
    * for example: $('a.example').cluetip({width: 200}); 
    * would change the default width to 200 for clueTips invoked by a link with class of "example"
    *
    */

    $.fn.cluetip.defaults = {  // set up default options
        width:            275,      // The width of the clueTip
        height:           'auto',   // The height of the clueTip
        cluezIndex:       9999,       // Sets the z-index style property of the clueTip
        positionBy:       'auto',   // Sets the type of positioning: 'auto', 'mouse','bottomTop', 'fixed'
        topOffset:        15,       // Number of px to offset clueTip from top of invoking element
        leftOffset:       15,       // Number of px to offset clueTip from left of invoking element
        local:            false,    // Whether to use content from the same page for the clueTip's body
        localPrefix:      null,       // string to be prepended to the tip attribute if local is true
        hideLocal:        true,     // If local option is set to true, this determines whether local content
        // to be shown in clueTip should be hidden at its original location
        attribute:        'rel',    // the attribute to be used for fetching the clueTip's body content
        titleAttribute:   'title',  // the attribute to be used for fetching the clueTip's title
        splitTitle:       '',       // A character used to split the title attribute into the clueTip title and divs
        // within the clueTip body. more info below [6]
        escapeTitle:      false,    // whether to html escape the title attribute
        showTitle:        true,     // show title bar of the clueTip, even if title attribute not set
        cluetipClass:     'default',// class added to outermost clueTip div in the form of 'cluetip-' + clueTipClass.
        hoverClass:       '',       // class applied to the invoking element onmouseover and removed onmouseout
        waitImage:        true,     // whether to show a "loading" img, which is set in jquery.cluetip.css
        cursor:           'help',
        arrows:           false,    // if true, displays arrow on appropriate side of clueTip
        dropShadow:       true,     // set to false if you don't want the drop-shadow effect on the clueTip
        dropShadowSteps:  6,        // adjusts the size of the drop shadow
        sticky:           false,    // keep visible until manually closed
        mouseOutClose:    false,    // close when clueTip is moused out
        activation:       'hover',  // set to 'click' to force user to click to show clueTip
        // set to 'focus' to show on focus of a form element and hide on blur
        clickThrough:     false,    // if true, and activation is not 'click', then clicking on link will take user to the link's href,
        // even if href and tipAttribute are equal
        tracking:         false,    // if true, clueTip will track mouse movement (experimental)
        delayedClose:     0,        // close clueTip on a timed delay (experimental)
        closePosition:    'top',    // location of close text for sticky cluetips; can be 'top' or 'bottom' or 'title'
        closeText:        'Close',  // text (or HTML) to to be clicked to close sticky clueTips
        truncate:         0,        // number of characters to truncate clueTip's contents. if 0, no truncation occurs

        // effect and speed for opening clueTips
        fx: {             
            open:       'show', // can be 'show' or 'slideDown' or 'fadeIn'
            openSpeed:  ''
        },     

        // settings for when hoverIntent plugin is used             
        hoverIntent: {    
            sensitivity:  3,
            interval:     50,
            timeout:      0
        },

        // short-circuit function to run just before clueTip is shown. 
        onActivate:       function(e) {return true;},

        // function to run just after clueTip is shown. 
        onShow:           function(ct, ci){},
        // function to run just after clueTip is hidden.
        onHide:           function(ct, ci){},
        // whether to cache results of ajax request to avoid unnecessary hits to server    
        ajaxCache:        true,  

        // process data retrieved via xhr before it's displayed
        ajaxProcess:      function(data) {
            data = data.replace(/<(script|style|title)[^<]+<\/(script|style|title)>/gm, '').replace(/<(link|meta)[^>]+>/g,'');
            return data;
        },                

        // can pass in standard $.ajax() parameters. Callback functions, such as beforeSend, 
        // will be queued first within the default callbacks. 
        // The only exception is error, which overrides the default
        ajaxSettings: {
            // error: function(ct, ci) { /* override default error callback */ }
            // beforeSend: function(ct, ci) { /* called first within default beforeSend callback }
            dataType: 'html'
        },
        debug: false
    };


    /*
    * Global defaults for clueTips. Apply to all calls to the clueTip plugin.
    *
    * @example $.cluetip.setup({
    *   insertionType: 'prependTo',
    *   insertionElement: '#container'
    * });
    * 
    * @property
    * @name $.cluetip.setup
    * @type Map
    * @cat Plugins/tooltip
    * @option String insertionType: Default is 'appendTo'. Determines the method to be used for inserting the clueTip into the DOM. Permitted values are 'appendTo', 'prependTo', 'insertBefore', and 'insertAfter'
    * @option String insertionElement: Default is 'body'. Determines which element in the DOM the plugin will reference when inserting the clueTip.
    *
    */

    var insertionType = 'appendTo', insertionElement = 'body';

    $.cluetip.setup = function(options) {
        if (options && options.insertionType && (options.insertionType).match(/appendTo|prependTo|insertBefore|insertAfter/)) {
            insertionType = options.insertionType;
        }
        if (options && options.insertionElement) {
            insertionElement = options.insertionElement;
        }
    };

})(jQuery);