/**
 * @file    js/global.js
 *
 * copyright (c) 2006-2009 Frank Hellenkamp [jonas@depagecms.net]
 *
 * @author    Frank Hellenkamp [jonas@depagecms.net]
 */

// global helpers
// {{{ getHexColorFromString()
function getHexColorFromString(colorString) {
    if (colorString == "transparent") {
	var hexCode = "000000";
    } else if (colorString.substr(0, 3) == "rgb") {
        var components = colorString.match(/[0-9]+/g);
        var r = parseInt(components[0]).toString(16);
        var g = parseInt(components[1]).toString(16);
        var b = parseInt(components[2]).toString(16);

        if (r.length < 2) r = "0" + r;
        if (g.length < 2) g = "0" + g;
        if (b.length < 2) b = "0" + b;

        var hexCode = r + g + b;
    } else if (colorString.charAt(0) == "#") {
        var hexCode = colorString.substring(1);
    }

    return "0x" + hexCode;
}
/* }}} */

// javascript flash detection
// {{{ jquery.browser.flash
jQuery.extend(jQuery.browser, {
    flash: (function (neededVersion) {
        var found = false;
	var flashversion = "0,0,0";

	try {
	    // get ActiveX Object for Internet Explorer
	    flashversion = new ActiveXObject("ShockwaveFlash.ShockwaveFlash").GetVariable('$version').replace(/\D+/g, ',').match(/^,?(.+),?$/)[1];
	} catch(e) {
	    // check plugins for Firefox, Safari, Opera etc.
	    try {
		if (navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) {
		    flashversion = (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description.replace(/\D+/g, ",").match(/^,?(.+),?$/)[1];
		}
	    } catch(e) {
		return false;
	    }		
	}

	var pv = flashversion.match(/\d+/g);
	var rv = neededVersion.match(/\d+/g);

	for (var i = 0; i < 3; i++) {
	    pv[i] = parseInt(pv[i] || 0);
	    rv[i] = parseInt(rv[i] || 0);

	    if (pv[i] < rv[i]) {
		// player is less than required
	       	return false;
	    } else if (pv[i] > rv[i]) {
		// player is greater than required
		return true;
	    }
	}
	// major version, minor version and revision match exactly
	return true;
    })
});
// }}}
// {{{ jquery.flash
jQuery.fn.flash = function(params) {
    var html1 = "";
    var html2 = "";
    var flashParam = [];

    for (var p in params.params) {
	flashParam.push(p + "=" + encodeURI(params.params[p]));
    }

    //object part
    html1 += "<object type=\"application/x-shockwave-flash\" ";
    html1 += "data=\"" + params.src + "?" + flashParam.join("&amp;") + "\" ";
    if (params.width !== undefined) {
	html1 += "width=\"" + params.width + "\" ";
    }
    if (params.height !== undefined) {
	html1 += "height=\"" + params.height + "\" ";
    }
    if (params.className !== undefined) {
	html1 += "class=\"" + params.className + "\" ";
    }
    if (params.id !== undefined) {
	html1 += "id=\"" + params.id + "\" ";
    }

    //param part
    html2 += "<param name=\"movie\" value=\"" + params.src + "?" + flashParam.join("&amp;") + "\" />";

    if (params.transparent === true) {
	html1 += "mwmode=\"transparent\"";
	html2 += "<param name=\"wmode\" value=\"transparent\" />";
    }
    html1 += ">";

    return $(html1 + html2 + "</object>");
};
// }}}

// embedded jquery plugins
// {{{ jquery fx custom
jQuery.fx.prototype.custom = function(from, to, unit){
    this.startTime = (new Date()).getTime();
    this.start = from;
    this.end = to;
    this.unit = unit || this.unit || "px";
    this.now = this.start;
    this.pos = this.state = 0;
    this.update();

    var self = this;
    function t(){
        return self.step();
    }

    t.elem = this.elem;

    jQuery.timers.push(t);

    if ( jQuery.timers.length == 1 ) {
        var timer = setInterval(function(){
            var timers = jQuery.timers;
            
            for ( var i = 0; i < timers.length; i++ ) {
                if ( !timers[i]() ) {
                    timers.splice(i--, 1);
                }
            }

            if ( !timers.length ) {
                clearInterval( timer );
            }
        }, 75);
    }
}
// }}}

// replace content, depending on reader capabilities
// {{{ replaceEmailChars()
function replaceEmailChars(mail) {
    mail = unescape(mail);
    mail = mail.replace(/ \*at\* /g, "@");
    mail = mail.replace(/ \*dot\* /g, ".");
    mail = mail.replace(/ \*punkt\* /g, ".");
    mail = mail.replace(/ \*underscore\* /g, "_");
    mail = mail.replace(/ \*unterstrich\* /g, "_");
    mail = mail.replace(/ \*minus\* /g, "-");
    mail = mail.replace(/mailto: /, "mailto:");

    return mail;
}
// }}}
// {{{ replaceEmailRefs()
function replaceEmailRefs() {
    $("a[href*='mailto:']").each(function() {
        // replace attribute
        $(this).attr("href", replaceEmailChars($(this).attr("href")));
        
        //replace content if necessary
        if ($(this).text().indexOf(" *at* ") > 0) {
            $(this).text(replaceEmailChars($(this).text()));
        }
    });
}
// }}}
// {{{ replaceFlashContent()
function replaceFlashContent() {
    $("img.flash_repl").each(function() {
	var parent = $(this).parent().prepend( 
	    $().flash({
		src:		this.src.replace(/\.jpg|\.gif|\.png/, ".swf").replace(/\&/, "&amp;"),
		width:		this.width,
		height:		this.height,
		className:	"flash",
		id:		this.id ? this.id + "_flash" : null,
		transparent:    $(this).hasClass("trans")
	    }) 
	);
	if (parent[0].nodeName == "A") {
	    // deactivate link for surrounding a-node in safari
	    parent[0].href = "javascript:return false;";
	}
    });
}
// }}}
// {{{ replaceInteractiveContent()
function replaceInteractiveContent() {
    var animTime = "300";

    $("body").addClass("javascript");

    // {{{ add handlers for slideshow images
    $(".slideshow").each( function() {
        var divs = $("div", this);
        var speed = Number($(this).attr("data-slideshow-speed"));
        if (!speed) {
            var speed = 3000;
        }

        var pause = Number($(this).attr("data-slideshow-pause"));
        if (!pause) {
            var pause = 3000;
        }

        divs.css({
            top: 0
        });
        for (var i = 1; i < divs.length; i++) {
            $(divs[i]).hide();
        }

        var fadeIn = function(n) {
            // wait
            $(divs[n]).animate({empty: 0}, pause, function() {
                // fade in
                $(this).fadeIn(speed, function() {
                    if (n < divs.length - 1) {
                        // fade in next image
                        fadeIn(n + 1);
                    } else {
                        // hide all images, fade out last
                        for (var i = 1; i < divs.length - 1; i++) {
                            $(divs[i]).hide();
                        }
                        $(divs[n]).animate({empty: 0}, pause, function() {
                            $(divs[n]).fadeOut(speed, function() {
                                fadeIn(1);
                            });
                        });
                    }
                });
            });
        }
        fadeIn(1);
    });
    // }}}
    // {{{ add numbers to click through images
    $(".fullscreenImg:gt(0)").hide();
    var fullscreenImgs = $(".fullscreenImg");

    if (fullscreenImgs.length > 1) {
        var inpage = $("#navigation .sub_active").append("<li class=\"inpage\"><span class=\"pos\">1</span>/" + fullscreenImgs.length + " <a href=\"#back\" class=\"goback\">&lt;</a> <a href=\"#forward\" class=\"goforward\">&gt;</a></li>");

        var getpos = function() {
            return Number($(".pos", inpage).text());
        }
        var setpos = function(value) {
            var pos = getpos();

            if (value != pos && value > 0 && value <= fullscreenImgs.length) {
                $(fullscreenImgs[pos - 1]).fadeOut();
                $(fullscreenImgs[value - 1]).fadeIn();

                $(".pos", inpage).text(value);
            }
        }

        $(".goback", inpage).click( function() {
            setpos(getpos() - 1);

            return false;
        });
        $(".goforward", inpage).click( function() {
            setpos(getpos() + 1);

            return false;
        });
    }
    // }}}
    // {{{ add handler for project description
    $(".project").each( function() {
        var project = this;

        $(".hint", project).append("<a class=\"more\" href=\"#more\">&gt;&gt;</a>");
        $(".description", project).append("<a class=\"less\" href=\"#less\">&lt;&lt;</a>").hide();

        $(".more", project).click( function() {
            $(".hint", project).fadeOut();
            $(".description", project).fadeIn();

            return false;
        });
        $(".less", project).click( function() {
            $(".hint", project).fadeIn();
            $(".description", project).fadeOut();

            return false;
        });
    });
    // }}}
}
// }}}
// {{{ addExtendedClasses()
function addExtendedClasses() {
    $("table tbody").each( function() {
        $("tr:even", this).addClass("even");
        $("tr:odd", this).addClass("odd");
        $("tr:first", this).addClass("first");
        $("tr:last", this).addClass("last");
    });
}
// }}}
// {{{ resizeFullscreenImgs()
function resizeFullscreenImgs() {
    var defaultW = 1600;
    var defaultH = 1200;
    var defaultRatio = defaultW/defaultH;

    var content = $("#content");
    var view = $(window);

    var xs = content.offset().left;
    var ys = content.offset().top + 100;

    var areaH = view.height();
    var areaW = view.width();

    if (content.height() + ys > areaH) {
        areaH = content.height() + ys;
    }
    if (content.width() + xs > areaW) {
        areaW = content.width() + xs;
    }

    if (areaW / areaH < defaultRatio) {
        var newH = areaH;
        var newW = Math.ceil(defaultW / defaultH * areaH);
    } else {
        var newH = Math.ceil(areaW * defaultH / defaultW);
        var newW = areaW;
    }
    
    newH *= 1.2;
    newW *= 1.2;

    var scale = newW / defaultW;

    if (scale < 0.7) {
        scale = 0.7;
        newH = defaultH * scale;
        newW = defaultW * scale;
    }
    var newML = xs - 1.5 * xs * scale;
    var newMT = ys - 1.5 * ys * scale;
    
    $(".fullscreenImg").css({
        position: "absolute",
        height: newH,
        width: newW,
        left: newML,
        top: newMT
    });
    $(".fullscreen").css({
        minHeight: newH + newMT,
        minWidth: areaW
    });
    //$("#info").html("areaW: " + areaW + "<br>areaH: " + areaH);
}
// }}}
// {{{ hidedetails()
function hideDetails() {
    $details = $(".details").each( function() {
        var $full = $(".full", this);
        var $img = $(".img", this);

        if (!$(this).is(":first-child")) {
            $full.hide();
            $img.hide();
        }

        $(".hgroup", this).click(function(){
            $(".full:visible", $details).slideUp("fast");
            $(".img:visible", $details).fadeOut("fast");

            $full.slideDown("fast");
            $img.fadeIn("fast");
        });
    });
}
// }}}

// fix browser behaviours
// {{{ fixHeightIE6()
function fixHeightIE6() {
    var body = $("body");
    var content = $("#content");

    if (body.height() > content.height()) {
	content.height(body.height());
    }
}
// }}}
// {{{ fixFlashDisplayOpera()
function fixFlashDisplayOpera(numcall) {
    numcall++;
    if (numcall < 20) {
	setTimeout("fixFlashDisplayOpera(" + numcall + ")", 200);
    }

    if (numcall % 2 == 0) {
	$("object").css({ border: "0px solid" });
    } else {
	$("object").css({ border: "none" });
    }
}
// }}}

// {{{ register events
$(document).ready(function() {
    // add resizer
    $(window).resize( resizeFullscreenImgs );
    $(".fullscreenImg img").load( resizeFullscreenImgs );

    // replace content
    replaceEmailRefs();
    replaceInteractiveContent();
    addExtendedClasses();
    hideDetails();
    resizeFullscreenImgs();
    setTimeout("resizeFullscreenImgs()", 200);

    // add flash content
    if ($.browser.flash("8,0,0")) {
        replaceFlashContent();

	$("body").addClass("flash");
    }

    // fix browser bugs
    if ($.browser.opera) {
	fixFlashDisplayOpera(0);
    }
});
// }}}
    
/* vim:set ft=javascript sw=4 sts=4 fdm=marker : */