/*
 * Facebox (for jQuery)
 * version: 1.2 (05/05/2008)
 * @requires jQuery v1.2 or later
 *
 * Examples at http://famspam.com/facebox/
 *
 * Licensed under the MIT:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright 2007, 2008 Chris Wanstrath [ chris@ozmm.org ]
 *
 * Usage:
 *  
 *  jQuery(document).ready(function() {
 *    jQuery('a[rel*=facebox]').facebox() 
 *  })
 *
 *  <a href="#terms" rel="facebox">Terms</a>
 *    Loads the #terms div in the box
 *
 *  <a href="terms.html" rel="facebox">Terms</a>
 *    Loads the terms.html page in the box
 *
 *  <a href="terms.png" rel="facebox">Terms</a>
 *    Loads the terms.png image in the box
 *
 *
 *  You can also use it programmatically:
 * 
 *    jQuery.facebox('some html')
 *
 *  The above will open a facebox with "some html" as the content.
 *    
 *    jQuery.facebox(function($) { 
 *      $.get('blah.html', function(data) { $.facebox(data) })
 *    })
 *
 *  The above will show a loading screen before the passed function is called,
 *  allowing for a better ajaxy experience.
 *
 *  The facebox function can also display an ajax page or image:
 *  
 *    jQuery.facebox({ ajax: 'remote.html' })
 *    jQuery.facebox({ image: 'dude.jpg' })
 *
 *  Want to close the facebox?  Trigger the 'close.facebox' document event:
 *
 *    jQuery(document).trigger('close.facebox')
 *
 *  Facebox also has a bunch of other hooks:
 *
 *    loading.facebox
 *    beforeReveal.facebox
 *    reveal.facebox (aliased as 'afterReveal.facebox')
 *    init.facebox
 *    close.facebox (aliased as 'afterClose.facebox')
 *
 *  Simply bind a function to any of these hooks:
 *
 *   $(document).bind('reveal.facebox', function() { ...stuff to do after the facebox and contents are revealed... })
 *
 */
(function($) {
    $.facebox = function(data, klass) {
        $.facebox.loading()

        if (data.ajax) fillFaceboxFromAjax(data.ajax)
        else if (data.image) fillFaceboxFromImage(data.image)
        else if (data.div) fillFaceboxFromHref(data.div)
        else if ($.isFunction(data)) data.call($)
        else $.facebox.reveal(data, klass)
    }

    $.messagebox = function(title, message) {
        var d = "<div id=\"messagebox\"><h1>" + title + "</h1><p>" + message + "</p></div>";
        $.facebox(d);
    }

    /*
    * Public, $.facebox methods
    */

    $.extend($.facebox, {
        settings: {
            opacity: 0,
            overlay: true,
            loadingImage: '/facebox/loading.gif',
            imageTypes: ['png', 'jpg', 'jpeg', 'gif'],
            faceboxHtml: '\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
        <table> \
          <tbody> \
            <tr> \
              <td class="tl"/><td class="t"/><td class="tr"/> \
            </tr> \
            <tr> \
              <td class="l"/> \
              <td class="body"> \
                <div class="content"> \
                </div> \
                <div class="footer" id="facebox_footer"> \
                    <table cellpadding="0" cellspacing="0" style="width: 100%;"> \
                        <tr> \
                            <td style="text-align: left;"> \
                                <input type="checkbox" id="facebox_suppress_checkbox" name="suppress" value="0" style="display: none;"> \
                                    <span id="facebox_suppress_text" style="display: none;">Don\'t show me this again</span> \
                                </input></td> \
                            <td style="text-align: right;"><a href="#" class="close"><button type="submit" class="submitBtn" id="facebox_close_button"><span>Close</span></button></a></td> \
                        </tr> \
                    </table> \
                </div> \
              </td> \
              <td class="r"/> \
            </tr> \
            <tr> \
              <td class="bl"/><td class="b"/><td class="br"/> \
            </tr> \
          </tbody> \
        </table> \
      </div> \
    </div>'
        },

        loading: function() {
            init()
            if ($('#facebox .loading').length == 1) return true
            showOverlay()

            $('#facebox .content').empty()
            $('#facebox .body').children().hide().end().
            append('<div class="loading"><img src="' + $.facebox.settings.loadingImage + '"/></div>')

            $('#facebox').show()

            $(document).bind('keydown.facebox', function(e) {
                if (e.keyCode == 27) $.facebox.close()
                return true
            })
            $(document).trigger('loading.facebox')
        },

        reveal: function(data, klass) {
            $(document).trigger('beforeReveal.facebox')
            if (klass) $('#facebox .content').addClass(klass)
            $('#facebox .content').append(data)
            $('#facebox .loading').remove()
            $('#facebox .body').children().fadeIn('normal')
            $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
        },

        close: function() {
            $(document).trigger('close.facebox').trigger('afterClose.facebox')
            return false
        }
    })

    /*
    * Public, $.fn methods
    */

    $.fn.facebox = function(settings) {
        init(settings)

        function clickHandler() {
            $.facebox.loading(true)

            // support for rel="facebox.inline_popup" syntax, to add a class
            // also supports deprecated "facebox[.inline_popup]" syntax
            var klass = this.rel.match(/facebox\[?\.(\w+)\]?/)
            if (klass) klass = klass[1]

            fillFaceboxFromHref(this.href, klass)
            return false
        }

        return this.click(clickHandler)
    }

    /*
    * Private methods
    */

    // called one time to setup facebox on this page
    function init(settings) {
        if ($.facebox.settings.inited) return true
        else $.facebox.settings.inited = true

        $(document).trigger('init.facebox')
        makeCompatible()

        var imageTypes = $.facebox.settings.imageTypes.join('|')
        $.facebox.settings.imageTypesRegexp = new RegExp('\.' + imageTypes + '$', 'i')

        if (settings) $.extend($.facebox.settings, settings)
        $('body').append($.facebox.settings.faceboxHtml)

        var preload = [new Image()]
        preload[0].src = $.facebox.settings.loadingImage

        $('#facebox').find('.b:first, .bl, .br, .tl, .tr').each(function() {
            preload.push(new Image())
            preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
        })

        $('#facebox .close').click($.facebox.close)
    }

    // Backwards compatibility
    function makeCompatible() {
        var $s = $.facebox.settings

        $s.loadingImage = $s.loading_image || $s.loadingImage
        $s.imageTypes = $s.image_types || $s.imageTypes
        $s.faceboxHtml = $s.facebox_html || $s.faceboxHtml
    }

    // Figures out what you want to display and displays it
    // formats are:
    //     div: #id
    //   image: blah.extension
    //    ajax: anything else
    function fillFaceboxFromHref(href, klass) {
        // div
        if (href.match(/#/)) {
            var url = window.location.href.split('#')[0]
            var target = href.replace(url, '')
            $.facebox.reveal($(target).clone().show(), klass)

            // image
        } else if (href.match($.facebox.settings.imageTypesRegexp)) {
            fillFaceboxFromImage(href, klass)
            // ajax
        } else {
            fillFaceboxFromAjax(href, klass)
        }
    }

    function fillFaceboxFromImage(href, klass) {
        var image = new Image()
        image.onload = function() {
            $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
        }
        image.src = href
    }

    function fillFaceboxFromAjax(href, klass) {
        $.get(href, function(data) { $.facebox.reveal(data, klass) })
    }

    function skipOverlay() {
        return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null
    }

    function showOverlay() {
        if (skipOverlay()) return;

        if ($('facebox_overlay').length === 0)
            $("body").append('<div id="facebox_overlay" class="facebox_hide"></div>')

        $('#facebox_overlay').hide().addClass("facebox_overlayBG")
        .css('opacity', $.facebox.settings.opacity)

        // show the overlay
        .fadeIn(g_overlayFadeDuration_milliseconds);
        return false;
    }

    function hideOverlay() {
        if (skipOverlay()) return

        $('#facebox_overlay').fadeOut(g_overlayFadeDuration_milliseconds, function() {
            $("#facebox_overlay").removeClass("facebox_overlayBG")
            $("#facebox_overlay").addClass("facebox_hide")
            $("#facebox_overlay").remove();
        })

        return false;
    }

    /*
    * Bindings
    */

    $(document).bind('close.facebox', function() {
        $(document).unbind('keydown.facebox')
        $('#facebox').fadeOut(function() {
            $('#facebox .content').removeClass().addClass('content')
            hideOverlay()
            $('#facebox .loading').remove()
        })
    })

})(jQuery);