//
//  iWeb - navbar.js
//  Copyright (c) 2007 Apple Inc. All rights reserved.
//

function NavBar(instanceID){
    if(instanceID){
        Widget.apply(this,arguments);
        if(!this.preferenceForKey("useStaticFeed")&&this.preferenceForKey("dotMacAccount")){
            var depthPrefix=this.preferenceForKey("path-to-root");
            if(!depthPrefix||depthPrefix=="")depthPrefix="./";
            this.xml_feed=depthPrefix+"?webdav-method=truthget&depth=infinity&ns=iweb&filterby=in-navbar";
        }else{
            this.xml_feed="feed.xml";
            if(this.sitePath){
                this.xml_feed=this.sitePath+"/"+this.xml_feed;
            }
        }
        this.changedPreferenceForKey("navbar-css");
        this.regenerate();
    }
}

NavBar.prototype=new Widget();
NavBar.prototype.constructor=NavBar;
NavBar.prototype.widgetIdentifier="com-apple-iweb-widget-NavBar";
NavBar.prototype.regenerate=function(){
    var xml_handler=this.PopulateNavItems.bind(this);
    ajaxRequest(this.xml_feed,xml_handler);
    return true;
}

NavBar.prototype.getStyleElement=function(key){
    if(!this.styleElement){
        var head=document.getElementsByTagName("head")[0];
        if(head){
            var newElement=document.createElement("style");
            newElement.type="text/css";
            head.appendChild(newElement);
            this.styleElement=newElement;
        }
    }
    return this.styleElement;
}

NavBar.prototype.substWidgetPath=function(text){
    var result=text.replace(/\$WIDGET_PATH/gm,this.widgetPath);
    return result;
}

NavBar.prototype.addCSSSelectorPrefix=function(text)
{var prefix="div#"+this.instanceID+" ";text=text.replace(/\/\*[^*]*\*+([^/][^*]*\*+)*\//gm,"");text=text.replace(/(^\s*|\}\s*)([^{]+)({[^}]*})/gm,function(match,beforeSelectorList,selectorList,propertyList){var result=beforeSelectorList;var selectors=selectorList.split(",");for(var i=0;i<selectors.length;i++){result+=prefix+selectors[i];if(i+1<selectors.length)result+=",";}
result+=propertyList;return result;});return text;}

NavBar.prototype.changedPreferenceForKey=function(key)
{if(key=="navbar-css")
{var text=this.preferenceForKey(key);if(!text)
{text="";}
text=this.substWidgetPath(text);text=this.addCSSSelectorPrefix(text);var styleElement=this.getStyleElement();if(styleElement)
{detectBrowser();if(!windowsInternetExplorer)
{var node=document.createTextNode(text);if(node)
{while(styleElement.hasChildNodes())
{styleElement.removeChild(styleElement.firstChild);}
styleElement.appendChild(node);}}
else
{styleElement.styleSheet.cssText=text;}}}}

NavBar.prototype.PopulateNavItems=function(req){
    var items;
    var feedRoot;
    if(isAjaxRequestReady(req)&&(feedRoot=ajaxGetDocumentElement(req))){
        var parsedFeed=this.getAtomFeedItems(feedRoot);
        var items=parsedFeed.resultArray;
        var currentPageGUID=null;
        var isCollectionPage="NO";
        var curPagePat=null;
        if(this.runningInApp)curPagePat=/\.#current#.$/;
    else{
        currentPageGUID=this.preferenceForKey("current-page-GUID");
        isCollectionPage=this.preferenceForKey("isCollectionPage");
    }
    var navDiv=this.div("navbar-list");
    var navBgDiv=navDiv.parentNode;
    $(navBgDiv).ensureHasLayoutForIE();
    while(navDiv.firstChild){navDiv.removeChild(navDiv.firstChild);}
    var depthPrefix=this.preferenceForKey("path-to-root");
    if(!depthPrefix||depthPrefix=="")depthPrefix="./";
    for(var x=0;x<items.length;x++){
        var navItem=document.createElement("li");
        var anchor=document.createElement("a");
        var title=items[x].title;
        var pageGUID=items[x].GUID;
        title=title.replace(/ /g,"\u00a0")+" ";
        var url=items[x].url;
        if(!this.runningInApp&&!url.match(/^http:/i))url=depthPrefix+url;
        var inAppCurPage=this.runningInApp&&curPagePat.exec(unescape(new String(url)));
        if(inAppCurPage){url=url.replace(curPagePat,"");}
        if(pageGUID==currentPageGUID||inAppCurPage){
            navItem.className='current-page';
            if(!this.runningInApp&&isCollectionPage!="YES"){
                //url="";
            }
        }else
            navItem.className='noncurrent-page';
            anchor.setAttribute("href",url);
            anchor.appendChild(document.createTextNode(title));
            navItem.appendChild(anchor);
            navDiv.appendChild(navItem);
        }
        if(this.preferences&&this.preferences.postNotification){this.preferences.postNotification("BLWidgetIsSafeToDrawNotification",1);}
    }
}

NavBar.prototype.getAtomFeedItems=function(feedNode)
{var results=new Array;var pageOrder=new Array;if(feedNode)
{var generator="";var generatorElt=getFirstElementByTagName(feedNode,"generator");if(generatorElt&&generatorElt.firstChild){generator=allData(generatorElt);}
var pageGUIDs,pageGUIDsElt;for(var entryElt=feedNode.firstChild;entryElt;entryElt=entryElt.nextSibling){var isInNavbarElt=null;if(!pageGUIDs&&(pageGUIDsElt=findChild(entryElt,"site-navbar","urn:iweb:"))){pageGUIDs=allData(pageGUIDsElt).split(",");for(var x=0;x<pageGUIDs.length;x++){var pageGUID=pageGUIDs[x];pageOrder[""+pageGUID]=x;}}
if(entryElt.nodeName=="entry"&&(isInNavbarElt=findChild(entryElt,"in-navbar","urn:iweb:"))){if(!isInNavbarElt)
continue;var pageGUID="";if(isInNavbarElt.firstChild){pageGUID=""+allData(isInNavbarElt);}else{iWLog("no navBarElt child");}
if(pageGUID=="navbar-sort")
continue;var title="";var titleElt=findChild(entryElt,"title","urn:iweb:");if(!titleElt){iWLog("No iWeb title");titleElt=findChild(entryElt,"title");}
if(titleElt&&titleElt.firstChild){title=allData(titleElt);}
var linkElt=getFirstElementByTagName(entryElt,'link');url=linkElt.getAttribute("href");if(!url&&linkElement.firstChild){url=allData(linkElement);}
results[results.length]={title:title,url:url,GUID:pageGUID};}}}
if(pageGUIDs){results=$(results).reject(function(result){return(pageOrder[result.GUID]===undefined);});results.sort(function(lhs,rhs){return pageOrder[lhs.GUID]-pageOrder[rhs.GUID];});}
return{resultArray:results};}
function findChild(element,nodeName,namespace)
{var child;for(child=element.firstChild;child;child=child.nextSibling){if(child.localName==nodeName||child.baseName==nodeName){if(!namespace){return child;}
var childNameSpace=child.namespaceURI;if(childNameSpace==namespace){return child;}}}
return null;}
function getFirstElementByTagName(node,tag_name){var elements=node.getElementsByTagName(tag_name);if(elements.length){return elements[0];}
else{return findChild(node,tag_name);}}
function allData(node)
{node=node.firstChild;var data=node.data;while((node=node.nextSibling)){data+=node.data;}
return data;}

NavBar.prototype.onload=function(){}
NavBar.prototype.onunload=function(){}