const StringBuffer &CEspApplicationPort::getNavBarContent(IEspContext &context, StringBuffer &content, StringBuffer &contentType, bool rawxml)
{
if (xslp)
{
Owned<IPropertyTree> navtree=createPTree("EspNavigationData");
{
ReadLockBlock rblock(rwLock);
int count = getBindingCount();
for (int idx = 0; idx<count; idx++)
bindings[idx]->queryBinding()->getNavigationData(context, *navtree.get());
}
StringBuffer xml;
buildNavTreeXML(navtree.get(), xml);
if (rawxml)
{
content.swapWith(xml);
contentType.clear().append(HTTP_TYPE_APPLICATION_XML_UTF8);
}
else
{
const char* viewType = navtree->queryProp("@viewType");
Owned<IXslTransform> xform = xslp->createXslTransform();
StringBuffer xslsource;
if (viewType && *viewType)
{
xslsource.append(getCFD()).appendf("./xslt/%s.xsl", stricmp(viewType, "tree") != 0 ? viewType: "navigation");
}
else
{
xslsource.append(getCFD()).append("./xslt/nav.xsl");
}
xform->loadXslFromFile(xslsource.str());
xform->setXmlSource(xml.str(), xml.length()+1);
xform->transform(content);
contentType.clear().append("text/html; charset=UTF-8");
}
}
return content;
}
void CEspApplicationPort::buildNavTreeXML(IPropertyTree* navtree, StringBuffer& xmlBuf, bool insideFolder)
{
if (!navtree)
return;
//Find out the menu items which do not request a specific position
//Also find out the maximum position being requested
unsigned positionMax = 0;
StringArray itemsGroup1;
Owned<IPropertyTreeIterator> items = navtree->getElements("*");
ForEach(*items)
{
IPropertyTree &item = items->query();
unsigned position = (unsigned) item.getPropInt("@relPosition", 0);
if (position > positionMax)
{
positionMax = position;
}
else if (position < 1)
{//if the item does not request a position, add it to the 'itemsGroup1'.
StringBuffer itemXML;
if (!insideFolder)
buildNavTreeXML(&item, itemXML, true);
else
toXML(&item, itemXML);
itemsGroup1.append(itemXML);
}
}
xmlBuf.appendf("<%s", navtree->queryName());
Owned<IAttributeIterator> attrs = navtree->getAttributes();
ForEach(*attrs)
{
const char *attrname = attrs->queryName()+1;
const char *attrvaluee = attrs->queryValue();
if (attrname && *attrname && attrvaluee && *attrvaluee)
xmlBuf.appendf(" %s=\"%s\"", attrname, attrvaluee);
}
xmlBuf.append(">\n");
unsigned positionInGroup1 = 0;
unsigned itemCountInGroup1 = itemsGroup1.length();
//append the menu items based on the position requested
unsigned position = 1;
while (position <= positionMax)
{
bool foundOne = false;
//process the item(s) which asks for this position
StringBuffer xPath;
xPath.appendf("*[@relPosition=%d]", position);
Owned<IPropertyTreeIterator> items1 = navtree->getElements(xPath.str());
ForEach(*items1)
{
IPropertyTree &item = items1->query();
StringBuffer itemXML;
if (!insideFolder)
buildNavTreeXML(&item, itemXML, true);
else
toXML(&item, itemXML);
xmlBuf.append(itemXML.str());
foundOne = true;
}
//If no one asks for this position, pick one from the itemsGroup1
if (!foundOne && (positionInGroup1 < itemCountInGroup1))
{
StringBuffer itemXML = itemsGroup1.item(positionInGroup1);
xmlBuf.append(itemXML.str());
positionInGroup1++;
}
position++;
}
//Check any item left inside the itemsGroup1 and append it into the xml
while (positionInGroup1 < itemCountInGroup1)
{
StringBuffer itemXML = itemsGroup1.item(positionInGroup1);
xmlBuf.append(itemXML.str());
positionInGroup1++;
}
xmlBuf.appendf("</%s>\n", navtree->queryName());
}
