/*
 * msgbox (for jQuery)
 * version: 1.1 (03/01/2008)
 * @requires jQuery v1.2 or later
 *
 * Usage:
 *  
 *  jQuery(document).ready(function() {
 *    jQuery('a[rel*=msgbox]').msgbox() 
 *  })
 *
 *  <a href="#popudiv" rel="msgbox">popup</a>
 *    Loads the #popudiv div in the box
 *
 *  <a href="popup.html" rel="msgbox">popup file</a>
 *    Loads the popup.html page in the box
 *
 *  <a href="popup.png" rel="msgbox">popup image</a>
 *    Loads the popup.png image in the box
 *
 *
 *   programmatically:
 * 
 *    jQuery.msgbox('html')
 *
 *  This will open a msgbox with "html" as the content.
 *    
 *    jQuery.msgbox(function() { ajax })
 *
 *  This will show a loading screen before the passed function is called,
 *  allowing for a better ajax experience.
 *
 */

// global variables //
var msgboxMask = true;
//var msgboxStyle = 0; //0='window' 1=msgbox


function openMsgbox(val, caption, type) {

    switch (type) {
        case 0: //'div'
            var dv = $get(val);
            jQuery.msgbox(dv.innerHTML, caption, null);
            break;
        case 1: //text-html
            jQuery.msgbox(val, caption, null);
            break;
        case 2: //file
            jQuery.msgbox.openFile(val, caption, null);
            break;
        default: //text-html
            jQuery.msgbox(val, caption, null);
            break;
    }
    return false;
}

function closeMsgbox() {
    jQuery.msgbox.close();
}


(function($) {
    $.msgbox = function(data, caption, cls) {
        $.msgbox.init()
        $.msgbox.loading()
        $.isFunction(data) ? data.call($) : $.msgbox.showDialog(data, caption, cls)
    }
    $.msgbox.settings = {
        image_types: ['png', 'jpg', 'jpeg', 'gif'],
        msgbox_html: '<div id="msgbox" style="display:none;"><div class="popup"><table><tbody><tr><td class="body" ><div class="body_border"><div class="title"><span class="caption"></span><a id="close_dlg" href="#" class="close"></a></div><div class="content" ></div><div class="footer"></div></div></td></tr></tbody></table></div></div>'
    }
    $.msgbox.loading = function() {
    if ($('#msgbox .loading').length == 1) return true

    $('#msgbox .content').empty()
    $('#msgbox .caption').empty()
    $('#msgbox .body').children().hide().end().
      append('<div class="loading"><div class="msgbox_loading"></div></div>')

        var pageScroll = $.msgbox.getPageScroll()
        $('#msgbox').css({
            top: pageScroll[1] + ($.msgbox.getPageHeight() / 10),
            left: pageScroll[0]
        }).show()

        $(document).bind('keydown.msgbox', function(e) {
            if (e.keyCode == 27) $.msgbox.close()
        })
        if (msgboxMask) {
            $("#backgroundMsgbox").css({
            "opacity": "0.7"
            });
            $("#backgroundMsgbox").fadeIn("slow");
        }
    }

    $.msgbox.showDialog = function(data,cap,  cls) {
    if (cls) $('#msgbox .content').addClass(cls)
    $('#msgbox .content').append(data)
    $('#msgbox .caption').append(cap)
    $('#msgbox .loading').remove()
    $('#msgbox .body').children().fadeIn('normal')
    }

    // open file into dialog
    $.msgbox.openFile = function(url, cap, cls) {
    //$.msgbox.init(settings)
    $.msgbox.loading(true)
        this.href = url;
        this.title = cap;
        $.get(this.href, function(data) { $.msgbox.showDialog(data,cap, cls) })

        return false
    }
    /*
    // open file into dialog
    $.msgbox.openFile = function(url, cap, cls) {
        //$.msgbox.init(settings)
        $.msgbox.loading(true)
        this.href = url;
        this.title = cap;
        $.get(this.href, this.title, function(data, caption) { $.msgbox.showDialog(data, cap, cls) })

        return false
    }
    */
    
    /*
    // open div into dialog
    $.msgbox.openDialog = function(elm, caption, cls) {
    var dv = $get(elm);
    //jQuery.msgbox(dv.innerHTML, null);

        //$.msgbox.init(settings)
    $.msgbox.loading(true)
    $.msgbox.showDialog(dv.innerHTML,caption, cls)

        return false
    }

    // open text-html into dialog
    $.msgbox.openMsg = function(data, caption, cls) {
    //$.msgbox.init(settings)
    $.msgbox.loading(true)
    $.msgbox.showDialog(data,caption, cls)

        return false
    }
    */
    $.msgbox.close = function() {
        if (msgboxMask) {
            $("#backgroundMsgbox").fadeOut("slow");
        }

        $(document).trigger('close.msgbox')
        return false
    }

    $(document).bind('close.msgbox', function() {
        $(document).unbind('keydown.msgbox')
        $('#msgbox').fadeOut(function() {
        $('#msgbox .content').removeClass().addClass('content')
        })
    })

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

        var image_types = $.msgbox.settings.image_types.join('|')
        image_types = new RegExp('\.' + image_types + '$', 'i')

        function click_handler() {
            $.msgbox.loading(true)

            // support for rel="msgbox[.inline_popup]" syntax, to add a class
            var cls = this.rel.match(/msgbox\[\.(\w+)\]/)
            if (cls) cls = cls[1]
            var cap = this.title;
            // div
            if (this.href.match(/#/)) {
                var url = window.location.href.split('#')[0]
                var target = this.href.replace(url, '')
                $.msgbox.showDialog($(target).clone().show(), cap, cls)

                // image
            } else if (this.href.match(image_types)) {
                var image = new Image()
                image.onload = function() {
                    $.msgbox.showDialog('<div class="image"><img src="' + image.src + '" /></div>', cls)
                }
                image.src = this.href

                // ajax
            } else {
                //$.get(this.href, this.title, function(data, caption) { $.msgbox.showDialog(data, cap, cls) })
                $.get(this.href, function(data) { $.msgbox.showDialog(data,cap, cls) })
            }

            return false
        }

        this.click(click_handler)
        return this
    }

    $.msgbox.init = function(settings) {

        if ($.msgbox.settings.inited) {
            return true
        } else {
            $.msgbox.settings.inited = true
        }

        if (settings) $.extend($.msgbox.settings, settings)
        $('body').append($.msgbox.settings.msgbox_html)

        var preload = [new Image(), new Image()]
        preload[0].src = $.msgbox.settings.close_image
        preload[1].src = $.msgbox.settings.loading_image

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

        $('#msgbox .close').click($.msgbox.close)
        //$('#msgbox .close_image').attr('src', $.msgbox.settings.close_image)
    }

    // getPageScroll() 
    $.msgbox.getPageScroll = function() {
        var xScroll, yScroll;
        if (self.pageYOffset) {
            yScroll = self.pageYOffset;
            xScroll = self.pageXOffset;
        } else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
            yScroll = document.documentElement.scrollTop;
            xScroll = document.documentElement.scrollLeft;
        } else if (document.body) {// all other Explorers
            yScroll = document.body.scrollTop;
            xScroll = document.body.scrollLeft;
        }
        return new Array(xScroll, yScroll)
    }

    // adapter from getPageSize() 
    $.msgbox.getPageHeight = function() {
        var windowHeight
        if (self.innerHeight) {	// all except Explorer
            windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
            windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
            windowHeight = document.body.clientHeight;
        }
        return windowHeight
    }
})(jQuery);