var LegacyNotice = {
    init: function (){
        if($("legacyOuterWrapper")) {
            $("LegacyNoticeCloseBox").observe("click", LegacyNotice.close);
        }
    },
    close: function () {
        $("legacyOuterWrapper").hide();
    }
};

var JumpTo = {
    select: function (){
        window.location.hash = $F('jumpTo');
    },
    load: function(){
        if ($('jumpto_button')){
            var jumpTos = $$(".jump");
            if (jumpTos.length > 1){
                var spaces = "    ";
                var menuItem;
                for (var i=0;i<jumpTos.length; i++){
                    jumpTos[i].id = "jumpTo_" + i;
                    menuItem = document.createElement('option');
                    var textForMenu =  jumpTos[i].textContent ? jumpTos[i].textContent : jumpTos[i].innerText;
                    if (jumpTos[i].hasClassName("constantName")){
                        menuItem.innerHTML = spaces + textForMenu;
                        menuItem.value = jumpTos[i].id;
                    } else if (jumpTos[i].hasClassName("instanceMethod")){
                        menuItem.innerHTML = spaces +"-&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].id;
                    } else if (jumpTos[i].hasClassName("classMethod")){
                        menuItem.innerHTML = spaces+"+&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].id;
                    } else if (jumpTos[i].hasClassName("method_property")){
                        menuItem.innerHTML = spaces + textForMenu;
                        menuItem.value = jumpTos[i].id;
                    } else if (jumpTos[i].hasClassName("section2")){
                        menuItem.innerHTML = "&nbsp;&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].previous('a').name;
                    } else if (jumpTos[i].hasClassName("section3")){
                        menuItem.innerHTML = "&nbsp;&nbsp;&nbsp;&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].previous('a').name;
                    } else if (jumpTos[i].hasClassName("section4")){
                        menuItem.innerHTML = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].previous('a').name;
                    } else if (jumpTos[i].hasClassName("section5")){
                        menuItem.innerHTML = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" + textForMenu;
                        menuItem.value = jumpTos[i].previous('a').name;
                    } else {
                        menuItem.innerHTML = textForMenu;
                        menuItem.value = jumpTos[i].previous('a').name;
                    }
                    $("jumpTo").insert({bottom:menuItem});
                    if (window.location.hash == "#" + menuItem.value){
                        menuItem.selected = true;
                    }
                }
                $("jumpto_button").show();
                $("jumpTo").observe("change", JumpTo.select);
            }
            return $("jumpTo");
    } else {
        return null;
    }
    }
};

var TOC = {
    initExpandable: function (sections){
      for (var i=0; i<sections.length; i++){
          sections[i].observe("click", TOC.toggleSection);
          var apple_ref = sections[i].down("a").getAttribute("href");
          var chapter = apple_ref.slice(apple_ref.lastIndexOf("/")+1, apple_ref.length);
          if (Cookie.get(chapter) == "open"){
              TOC.toggleSection({element: function () { return sections[i]; }});
          }
      }
      return i;
    },
    createIcon: function (attributes) {
        var icon = document.createElement('img');
        icon.setAttribute("src", Book.resourcesURI + attributes.src);
        icon.setAttribute("height", "16");
        icon.setAttribute("width", "18");
        icon.setAttribute("alt", attributes.alt);
        icon.setAttribute("id", attributes.id);
        return icon
    },
    changeCurrentLocation: function (event){
        if (Book.currentLocation){
            Book.currentLocation.removeClassName("currentLocation");
        }
        Book.currentLocation = Event.element(event);
        return Book.currentLocation.addClassName("currentLocation");
    },
    processLink: function (link){
        //link.observe("click", TOC.changeCurrentLocation)
        //if (link.href == window.location.href){
            //link.addClassName("currentLocation");
            //Book.currentLocation = link;
            //if ($('tocEntry_133').up('.children') && !$('tocEntry_133').up('.children').hasClassName('open')){
            //   TOC.toggleSection({element: function () { return $('tocEntry_133').up('.children'); }});
            //}
        //} 
        return link;
    },
    processLinks: function () {
        if ($("PDF_link")){ // If TOC has PDF link, move to header
            $("title").insert({top:$("PDF_link").remove()});
            $('PDF_link').down().insert({top:TOC.createIcon({
                src: "/Images/header_toc/pdf.png",
                id: "pdf_icon",
                alt: "PDF Icon"})
                });
            Links.reasignRelative([$('PDF_link').down()], true);
        }
        if ($("Companion_link")){ // If TOC has Companion File link, move to header
            $("title").insert({top:$("Companion_link").remove()});
            $('Companion_link').down().insert({top:TOC.createIcon({
                src: "/Images/header_toc/download.png",
                id: "companion_icon",
                alt: "Download Icon"})
                });
            Links.reasignRelative([$('Companion_link').down()], true);
        }
        return Links.reasignRelative($$("#toc a"));
    },
    init: function (transport){
        $("toc").innerHTML = transport.responseText;
        $("title").insert({top:$("book_title").remove()}); //Insert Book Title
        if ($("book_subtitle")){ // Insert subtitle
             $("book_title").insert({bottom:" &mdash; " + $("book_subtitle").remove().innerHTML});
        }
        TOC.processLinks();
        return TOC.initExpandable($$("#toc .children"));
    },
    load: function (){
        if (Book.tocURI !== ""){
            if (Cookie.get("toc-visible") == "true"){
                TOC.toggle();
            }
            $('toc_button').observe("click", TOC.toggle);
            $('toc_button').show();
            return (new Ajax.Request(Book.tocURI,
                {   method:     'get',
                    onSuccess:  TOC.init,
                    onFailure: function(transport) {console.log(transport);}
                }));
        } else {
            var title = document.createElement('h1');
            title.innerHTML = document.title.split(":")[0];
            return $("title").insert({top:title});
        }
    },
    toggle: function(){
        if ($('tocContainer').toggle('appear').visible()){
            $('contents').style.left = "230px";
            $('toc_button').down("button").addClassName("open");
            Cookie.set({cName: 'toc-visible', cValue: 'true', cExpiry: COOKIE_EXPIRE_DATE, cPath: "/"});
        } else {
            $('contents').style.left = "0px";
            $('toc_button').down("button").removeClassName("open");
            Cookie.expire('toc-visible');
        }
        return $('tocContainer');
    },
    toggleSection: function(event){
        if (event.element().hasClassName('children')){
            var toc_expandable = $(event.element());
            var apple_ref = toc_expandable.down('a').getAttribute("href");
            var chapter = apple_ref.slice(apple_ref.lastIndexOf("/")+1, apple_ref.length);
            if (toc_expandable.down(".collapsible").toggle('slide').visible()){
                toc_expandable.addClassName('open');
                return Cookie.set({cName: chapter, cValue: 'open', cExpiry: COOKIE_EXPIRE_DATE, cPath: "/"});
            } else {
                toc_expandable.removeClassName('open');
                return Cookie.expire(chapter);
            }
        } else {
            return false;
        }
    }
};

var Page = {
    init: function (){
        if (Book.nextPage){
            $('nextPage').observe("click", Page.next);
            $('page_buttons').show();
        } else {
            $('nextPage').disabled = true;
        }
        if (Book.previousPage){
            $('previousPage').observe("click", Page.previous);
            $('page_buttons').show();
        } else {
            $('previousPage').disabled = true;
        }
    },
    next: function (){
        if (Book.nextPage){
            return (window.location = Book.nextPage);
        } else {
            return null;
        }
    },
    previous: function (){
        if (Book.previousPage){
            return (window.location = Book.previousPage);
        } else {
            return null;
        }
    }
};

var Key = {
    listen: function(){
        window.onkeypress = Key.press;
    },
    press: function (event){
        var keyPressed = event.charCode ? event.charCode : event.keyCode;
        switch (keyPressed) {
            case 44: // ,  < Previous Page
                return Page.previous();
            case 46: // . > Next Page
                return Page.next();
            case 47: // / ? toc
                return TOC.toggle();
            case 106: // j Jump To
                if ($('jumpto_button').visible()){
                    return $('jumpTo').focus();
                } else {
                    return keyPressed;
                }
                break;
            default:
                return keyPressed;
        }
    }
};

document.observe("dom:loaded", function() {
    TOC.load();
    JumpTo.load();
    Page.init();
    Key.listen();
    LegacyNotice.init();
    $('contents').focus();
    if (!Prototype.Browser.WebKit) {
        document.body.style.overflow= "hidden"; 
        //Causes issues with keyboard navigation in WebKit, lack of css causes double scroll bars in other browsers
    }
});