/**
 * @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 version = "0,0,0";

	try {
	    // get ActiveX Object for Internet Explorer
	    version = 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) {
		    version = (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description.replace(/\D+/g, ",").match(/^,?(.+),?$/)[1];
		}
	    } catch(e) {
		return false;
	    }		
	}

	var pv = version.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 pause
/*
 * Jonathan Howard
 *
 * jQuery Pause
 * version 0.2
 *
 * Requires: jQuery 1.0 (tested with svn as of 7/20/2006)
 *
 * Feel free to do whatever you'd like with this, just please give credit where
 * credit is do.
 *
 *
 *
 * pause() will hold everything in the queue for a given number of milliseconds,
 * or 1000 milliseconds if none is given.
 *
 *
 *
 * unpause() will clear the queue of everything of a given type, or 'fx' if no
 * type is given.
 */

$.fn.pause = function(milli,type) {
	milli = milli || 1000;
	type = type || "fx";
	return this.queue(type,function(){
		var self = this;
		setTimeout(function(){
			$.dequeue(self);
		},milli);
	});
};

$.fn.clearQueue = $.fn.unpause = function(type) {
	return this.each(function(){
		type = type || "fx";
		if(this.queue && this.queue[type]) {
			this.queue[type].length = 0;
		}
	});
};
// }}}
// {{{ 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() {
    // {{{ get language from content tag in header
    var lang = $("meta[name = 'Content-Language']")[0].content;
    // }}}
    // {{{ add click event for teaser
    $(".teaser").click( function() {
        document.location = $("a", this)[0].href;
    });
    // }}}
    // {{{ add zoom images
    $("a.zoom")
        .append("<span>+</span>")
        .click( function() {
            var scrollPos = $(window).scrollTop();
                
            $(this).blur();

            // generate element
            var zoomed = $("<div id=\"zoomed\"><div><img src=\"" + this.href + "\"><div></div>").prependTo("#content").css({
                opacity: 0
            }).animate({
                opacity: 1 
            }, {
                duration: 500,
                step: function(now) {
                    $(window).scrollTop((1 - now) * scrollPos);
                }
            }).click(function() {
                $(this).animate({
                    opacity: 0
                },{
                    duration: 500,
                    complete: function() {
                        $(this).remove();
                    },
                    step: function(now) {
                        $(window).scrollTop((1 - now) * scrollPos);
                    }
                });
            });

            return false;
    });
    // }}}
    // {{{ 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({top: 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({top: 0}, pause, function() {
                            $(divs[n]).fadeOut(speed, function() {
                                fadeIn(1);
                            });
                        });
                    }
                });
            });
        }
        fadeIn(1);
    });
    // }}}
}
// }}}

// {{{ fixIESelectors()
function fixIESelectors() {
    $(".image + .image").css({
        paddingTop: 0
    });
}
// }}}

// {{{ register events
$(document).ready(function() {
    // replace content
    replaceEmailRefs();
    replaceInteractiveContent();

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

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

    // fix browser bugs
    fixIESelectors();
});
// }}}
    
/* vim:set ft=javascript sw=4 sts=4 fdm=marker : */