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// @version     0.1.4 - 2012-08-23
// @author      Infocatcher
// @namespace   dev/null
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// @include     http://akelpad.sourceforge.net/forum/posting.php*
// @include     http://akelpad.sourceforge.net/forum/privmsg.php*
// ==/UserScript==

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        if(brightness < 0.5)
            isDarkTheme = true;
    }
}

var style = isDarkTheme
    ? '\
/* Tomorrow Night Bright Theme */\n\
/* Original theme - https://github.com/chriskempson/tomorrow-theme */\n\
/* http://jmblog.github.com/color-themes-for-google-code-highlightjs */\n\
/* Modified by Infocatcher */\n\
%pre% .comment, %pre% .title {\n\
  color: #969896;\n\
}\n\
%pre% .comment {\n\
  font-style: italic;\n\
}\n\
%pre% .variable, %pre% .attribute, %pre% .tag, %pre% .regexp, %pre% .ruby .constant, %pre% .xml .tag .title, %pre% .xml .pi, %pre% .xml .doctype, %pre% .html .doctype, %pre% .css .id, %pre% .css .class, %pre% .css .pseudo {\n\
  color: #d54e53;\n\
}\n\
%pre% .number, %pre% .preprocessor, %pre% .built_in, %pre% .literal, %pre% .params, %pre% .constant {\n\
  color: #e78c45;\n\
}\n\
%pre% .class, %pre% .ruby .class .title, %pre% .css .rules .attribute {\n\
  color: #e7c547;\n\
}\n\
%pre% .string, %pre% .value, %pre% .inheritance, %pre% .header, %pre% .ruby .symbol, %pre% .xml .cdata {\n\
  color: #b9ca4a;\n\
}\n\
%pre% .css .hexcolor {\n\
  color: #70c0b1;\n\
}\n\
%pre% .function, %pre% .python .decorator, %pre% .python .title, %pre% .ruby .function .title, %pre% .ruby .title .keyword, %pre% .perl .sub, %pre% .javascript .title, %pre% .coffeescript .title {\n\
  color: #7aa6da;\n\
}\n\
%pre% .keyword, %pre% .javascript .function {\n\
  color: #c397d8;\n\
  font-weight: bold;\n\
}\n\
%pre%, .highlight-js-forceBG {\n\
  background: black;\n\
}\n\
%pre% {\n\
  display: block;\n\
  color: #eaeaea;\n\
  padding: 0.5em;\n\
}'
    : '\
/*\n\
github.com style (c) Vasily Polovnyov <vast@whiteants.net>\n\
Modified by Infocatcher\n\
*/\n\
%pre%, .highlight-js-forceBG {\n\
  background: #f8f8ff;\n\
}\n\
%pre% {\n\
  display: block; padding: 0.5em;\n\
  color: #333;\n\
}\n\
\n\
%pre% .comment,\n\
%pre% .template_comment,\n\
%pre%.diff .header,\n\
%pre% .javadoc {\n\
  color: #998;\n\
  font-style: italic\n\
}\n\
\n\
%pre% .keyword,\n\
%pre% .css .rule .keyword,\n\
%pre% .winutils,\n\
%pre%.javascript .title,\n\
%pre%.nginx .title,\n\
%pre% .subst,\n\
%pre% .request,\n\
%pre% .status {\n\
  color: #333;\n\
  font-weight: bold\n\
}\n\
\n\
%pre% .number,\n\
%pre% .hexcolor,\n\
%pre%.ruby .constant {\n\
  color: #099;\n\
}\n\
\n\
%pre% .string,\n\
%pre% .tag .value,\n\
%pre% .phpdoc,\n\
%pre%.tex .formula {\n\
  color: #d14\n\
}\n\
\n\
%pre% .title,\n\
%pre% .id {\n\
  color: #900;\n\
  font-weight: bold\n\
}\n\
\n\
%pre%.javascript .title,\n\
%pre%.lisp .title,\n\
%pre%.clojure .title,\n\
%pre% .subst {\n\
  font-weight: normal\n\
}\n\
\n\
%pre% .class .title,\n\
%pre%.haskell .type,\n\
%pre%/*.vhdl*/ .literal,\n\
%pre%.tex .command {\n\
  color: #458;\n\
  font-weight: bold\n\
}\n\
\n\
%pre% .tag,\n\
%pre% .tag .title,\n\
%pre% .rules .property,\n\
%pre%.django .tag .keyword {\n\
  color: #000080;\n\
  font-weight: normal\n\
}\n\
\n\
%pre% .attribute,\n\
%pre% .variable,\n\
%pre%.lisp .body {\n\
  color: #008080\n\
}\n\
\n\
%pre% .regexp {\n\
  color: #009926\n\
}\n\
\n\
%pre% .class {\n\
  color: #458;\n\
  font-weight: bold\n\
}\n\
\n\
%pre% .symbol,\n\
%pre%.ruby .symbol .string,\n\
%pre%.lisp .keyword,\n\
%pre%.tex .special,\n\
%pre% .input_number {\n\
  color: #990073\n\
}\n\
\n\
%pre% .built_in,\n\
%pre%.lisp .title,\n\
%pre%.clojure .built_in {\n\
  color: #0086b3\n\
}\n\
\n\
%pre% .preprocessor,\n\
%pre% .pi,\n\
%pre% .doctype,\n\
%pre% .shebang,\n\
%pre% .cdata {\n\
  color: #999;\n\
  font-weight: bold\n\
}\n\
\n\
%pre% .deletion {\n\
  background: #fdd\n\
}\n\
\n\
%pre% .addition {\n\
  background: #dfd\n\
}\n\
\n\
%pre%.diff .change {\n\
  background: #0086b3\n\
}\n\
\n\
%pre% .chunk {\n\
  color: #aaa\n\
}\n\
\n\
%pre%.tex .formula {\n\
  opacity: 0.5;\n\
}';

style = style.replace(/%pre%/g, codeSelector);

var s = document.createElement("style");
s.id = "highlight-js-styles";
s.type = "text/css";
s.appendChild(document.createTextNode(style));
document.getElementsByTagName("head")[0].appendChild(s);


/*** Main functions ***/
function highlight(box) {
    var useBR = box.getElementsByTagName("br").length > 0;
    hljs.highlightBlock(box, null, useBR);
}
function higlightAll() {
    var boxes = getBoxes();
    for(var i = 0, l = boxes.length; i < l; ++i) {
        var box = boxes[i];
        initBoxDelayed(box);
    }
}
function initBoxDelayed(box) {
    setTimeout(function() {
        _updLock = true;
        initBox(box);
        _updLock = false;
    }, 0);
}
function initBox(box) {
    if(box.hasAttribute("data-highlight-js-parsed"))
        return;
    box.setAttribute("data-highlight-js-parsed", "true");

    // Special "codes"
    var tc = box.textContent;
    if(
        /^custombutton:\/\/\S+%3C\/custombutton%3E\s*$/.test(tc)
        || /^data:[\w-]+\/[\w-]+;base64,\S+\s*$/.test(tc)
    ) {
        tc = tc.replace(/\s+$/, "");
        var a = document.createElement("a");
        a.href = tc;

        var icon;
        if(/^data:image\//.test(tc))
            icon = tc;
        else if(
            /^custombutton:\/\//.test(tc)
            && /%3Cimage%3E%3C%21%5BCDATA%5B(data%3A\S+)%5D%5D%3E%3C\/image%3E/.test(tc)
        )
            try { icon = decodeURIComponent(RegExp.$1); } catch(e) {}
        if(icon) {
            var img = document.createElement("img");
            img.src = icon;
            img.alt = "";
            var s = img.style;
            s.marginRight = "4px";
            s.verticalAlign = "middle";
            a.appendChild(img);
        }

        a.appendChild(document.createTextNode(tc));
        var s = a.style;
        s.background = "none";
        s.margin = s.padding = 0;

        box.innerHTML = "";
        box.appendChild(a);
        return;
    }

    new ClassList(box).add(codeClass);
    if(box.parentNode.className == "scrollbox") // For forum.mozilla-russia.org
        new ClassList(box.parentNode).add("highlight-js-forceBG");
    if(box.getElementsByTagName("span").length) // Already highlighted
        box.setAttribute("data-highlight-js-original", "");
    else
        highlight(box);
    addTypeSwitcher(box);
}
var _updLast = 0;
var _updInitialDelay = 100; // Wait for all DOM mutations
var _updMinDelay = 500; // Limit update frequency
var _updScheduled = false;
var _updLock = false;
function updProxy() {
    if(_updScheduled || _updLock)
        return;
    var dt = Math.max(_updInitialDelay, _updLast + _updMinDelay - new Date().getTime());
    _updScheduled = true;
    setTimeout(function() {
        _updScheduled = false;
        higlightAll();
        _updLast = new Date().getTime();
    }, dt);
}
function addTypeSwitcher(box) {
    var header = getHeader(box);
    var select = document.createElement("select");
    select.className = switcherClass;

    var s = select.style;
    s.cssFloat = s.styleFloat = "right";
    s.textTransform = "none";
    s.marginLeft = "6px";
    styleSelect(s);

    var selectedType;
    if(box.hasAttribute("data-highlight-js-original")) {
        var option = document.createElement("option");
        option.value = "__original__";
        option.appendChild(document.createTextNode("Original"));
        option.selected = true;
        select.appendChild(option);
    }
    else {
        var cl = new ClassList(box);
        for(var type in types) {
            if(cl.contains(type)) {
                selectedType = type;
                break;
            }
        }
        if(!selectedType) {
            selectedType = defaultType;
            backup(box);
            cl.remove("undefined");
            cl.add(defaultType);
            highlight(box);
        }
    }

    for(var type in types) {
        var name = types[type];
        var option = document.createElement("option");
        option.value = type;
        option.appendChild(document.createTextNode(name));
        if(type == selectedType)
            option.selected = true;
        select.appendChild(option);
    }
    header.insertBefore(select, header.firstChild);
}
function switchTypeHandler(e) {
    e = e || window.event;
    var select = e.target || e.srcElement;
    if(select.className != switcherClass)
        return;
    var container = select.parentNode;
    var nn = container.nodeName.toLowerCase();
    if(nn == "td") // td -> tr -> tbody
        container = container.parentNode.parentNode;
    else if(nn == "dt") // dt -> dl
        container = container.parentNode;
    var box;
    if(container.querySelector)
        box = container.querySelector("[data-highlight-js-parsed]");
    else {
        var nodes = container.getElementsByTagName("*");
        for(var i = 0, l = nodes.length; i < l; ++i) {
            var node = nodes[i];
            if(node.hasAttribute("data-highlight-js-parsed")) {
                box = node;
                break;
            }
        }
    }
    box && switchType(select, box);
}
function switchType(select, box) {
    _updLock = true;
    var newType = select.value;
    var cl = new ClassList(box);
    for(var type in types)
        if(type != newType)
            cl.remove(type);
    cl.remove("undefined");
    if(newType == "__original__")
        box.innerHTML = box.getAttribute("data-highlight-js-original");
    else {
        backup(box);
        cl.add(newType.replace(/^\+/, ""));
        if(newType.charAt(0) != "+")
            unhl(box);
        highlight(box);
    }
    _updLock = false;
}
function backup(node) {
    if(
        node.hasAttribute("data-highlight-js-original")
        && !node.getAttribute("data-highlight-js-original")
    )
        node.setAttribute("data-highlight-js-original", node.innerHTML);
}
function unhl(node) {
    node.innerHTML = node.innerHTML.replace(/<\/?span[^<>]*>/ig, "");
}
function destroy(e) {
    removeEventListener(window, "unload", destroy);
    removeEventListener(document, "change", switchTypeHandler);
    if(typeof mo != "undefined")
        mo.disconnect();
    else
        removeEventListener(document, "DOMNodeInserted", updProxy);
}

function addEventListener(target, type, func) {
    if(target.addEventListener)
        target.addEventListener(type, func, false);
    else
        target.attachEvent("on" + type, func);
}
function removeEventListener(target, type, func) {
    if(target.removeEventListener)
        target.removeEventListener(type, func, false);
    else
        target.detachEvent("on" + type, func);
}
function ClassList(node) {
    if("classList" in node)
        return node.classList;
    this.node = node;
}
ClassList.prototype = {
    _re: function(s) {
        return new RegExp(
            "(^|\\s+)"
            + s.replace(/[\\\/.^$+*?|()\[\]{}]/g, "\\$&")
            + "(\\s|$)"
        );
    },
    _trim: function(s) {
        return (s || "").replace(/^\s+|\s+$/g, "");
    },
    add: function(clss) {
        if(!this.contains(clss))
            this.node.className = this._trim(this.node.className + " " + clss);
    },
    remove: function(clss) {
        if(this.contains(clss))
            this.node.className = this._trim(this.node.className.replace(this._re(clss), " "));
    },
    toggle: function(clss) {
        if(this.contains(clss))
            this.remove(clss);
        else
            this.add(clss);
    },
    contains: function(clss) {
        return this._re(clss).test(this.node.className);
    }
};

higlightAll();
addEventListener(document, "change", switchTypeHandler);
if(window.MutationObserver) {
    var mo = new MutationObserver(updProxy);
    mo.observe(document, {
        childList: true,
        subtree: true
    });
}
else {
    addEventListener(document, "DOMNodeInserted", updProxy);
}
addEventListener(window, "unload", destroy);

})();