//static
void LLUICtrlFactory::createChildren(LLView* viewp, LLXMLNodePtr node, const widget_registry_t& registry, LLXMLNodePtr output_node)
{
LLFastTimer ft(FTM_CREATE_CHILDREN);
if (node.isNull()) return;
for (LLXMLNodePtr child_node = node->getFirstChild(); child_node.notNull(); child_node = child_node->getNextSibling())
{
LLXMLNodePtr outputChild;
if (output_node)
{
outputChild = output_node->createChild("", FALSE);
}
if (!instance().createFromXML(child_node, viewp, LLStringUtil::null, registry, outputChild))
{
// child_node is not a valid child for the current parent
std::string child_name = std::string(child_node->getName()->mString);
if (LLDefaultChildRegistry::instance().getValue(child_name))
{
// This means that the registry assocaited with the parent widget does not have an entry
// for the child widget
// You might need to add something like:
// static ParentWidgetRegistry::Register<ChildWidgetType> register("child_widget_name");
llwarns << child_name << " is not a valid child of " << node->getName()->mString << llendl;
}
else
{
llwarns << "Could not create widget named " << child_node->getName()->mString << llendl;
}
}
if (outputChild && !outputChild->mChildren && outputChild->mAttributes.empty() && outputChild->getValue().empty())
{
output_node->deleteChild(outputChild);
}
}
}
bool LLXUIParser::readXUIImpl(LLXMLNodePtr nodep, const std::string& scope, LLInitParam::BaseBlock& block)
{
typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
boost::char_separator<char> sep(".");
bool values_parsed = false;
// submit attributes for current node
values_parsed |= readAttributes(nodep, block);
// treat text contents of xml node as "value" parameter
std::string text_contents = nodep->getSanitizedValue();
if (!text_contents.empty())
{
mCurReadNode = nodep;
mNameStack.push_back(std::make_pair(std::string("value"), newParseGeneration()));
// child nodes are not necessarily valid parameters (could be a child widget)
// so don't complain once we've recursed
bool silent = mCurReadDepth > 0;
if (!block.submitValue(mNameStack, *this, true))
{
mNameStack.pop_back();
block.submitValue(mNameStack, *this, silent);
}
else
{
mNameStack.pop_back();
}
}
// then traverse children
// child node must start with last name of parent node (our "scope")
// for example: "<button><button.param nested_param1="foo"><param.nested_param2 nested_param3="bar"/></button.param></button>"
// which equates to the following nesting:
// button
// param
// nested_param1
// nested_param2
// nested_param3
mCurReadDepth++;
for(LLXMLNodePtr childp = nodep->getFirstChild(); childp.notNull();)
{
std::string child_name(childp->getName()->mString);
S32 num_tokens_pushed = 0;
// for non "dotted" child nodes check to see if child node maps to another widget type
// and if not, treat as a child element of the current node
// e.g. <button><rect left="10"/></button> will interpret <rect> as "button.rect"
// since there is no widget named "rect"
if (child_name.find(".") == std::string::npos)
{
mNameStack.push_back(std::make_pair(child_name, newParseGeneration()));
num_tokens_pushed++;
}
else
{
// parse out "dotted" name into individual tokens
tokenizer name_tokens(child_name, sep);
tokenizer::iterator name_token_it = name_tokens.begin();
if(name_token_it == name_tokens.end())
{
childp = childp->getNextSibling();
continue;
}
// check for proper nesting
if(!scope.empty() && *name_token_it != scope)
{
childp = childp->getNextSibling();
continue;
}
// now ignore first token
++name_token_it;
// copy remaining tokens on to our running token list
for(tokenizer::iterator token_to_push = name_token_it; token_to_push != name_tokens.end(); ++token_to_push)
{
mNameStack.push_back(std::make_pair(*token_to_push, newParseGeneration()));
num_tokens_pushed++;
}
}
// recurse and visit children XML nodes
if(readXUIImpl(childp, mNameStack.empty() ? scope : mNameStack.back().first, block))
{
// child node successfully parsed, remove from DOM
values_parsed = true;
LLXMLNodePtr node_to_remove = childp;
childp = childp->getNextSibling();
nodep->deleteChild(node_to_remove);
}
else
{
childp = childp->getNextSibling();
}
while(num_tokens_pushed-- > 0)
{
mNameStack.pop_back();
}
}
mCurReadDepth--;
return values_parsed;
}
