DomElement DomElement::get_next_sibling_element() const
{
DomNode node = get_next_sibling();
while (!node.is_null() && !node.is_element())
node = node.get_next_sibling();
return node.to_element();
}
std::string DomNode::select_string(const DomString &xpath_expression) const
{
DomNode node = select_node(xpath_expression);
if (node.is_element())
return node.to_element().get_text();
else
return node.get_node_value();
}
DomElement DomDocument::get_document_element()
{
DomNode cur = get_first_child();
while (!cur.is_null())
{
if (cur.is_element())
return cur.to_element();
cur = cur.get_next_sibling();
}
return DomElement();
}
std::string DomElement::get_text() const
{
std::string str;
if (has_child_nodes() == false)
return str;
DomNode cur = get_first_child();
while (!cur.is_null())
{
if (cur.is_text() || cur.is_cdata_section())
str.append(cur.get_node_value());
if (cur.is_element())
str.append(cur.to_element().get_text());
cur = cur.get_next_sibling();
}
return str;
}
ProgramObject ProgramObject::load(
GraphicContext &gc,
const std::string &resource_id,
const XMLResourceDocument &resources)
{
ProgramObject program_object(gc);
XMLResourceNode resource = resources.get_resource(resource_id);
DomNode node = resource.get_element().get_first_child();
while (!node.is_null())
{
if (node.is_element())
{
DomElement element = node.to_element();
if (element.get_tag_name() == "shader")
{
ShaderObject shader = ShaderObject::load(gc, element.get_attribute("name"), resources);
program_object.attach(shader);
}
else if (element.get_tag_name() == "bind-attribute")
{
program_object.bind_attribute_location(
StringHelp::text_to_int(element.get_attribute("index")),
element.get_attribute("name"));
}
}
node = node.get_next_sibling();
}
if (!resource.get_element().get_attribute("shader").empty())
{
ShaderObject shader = ShaderObject::load(gc, resource.get_element().get_attribute("shader"), resources);
program_object.attach(shader);
}
if (resource.get_element().get_attribute("link", "true") == "true")
if(!program_object.link())
throw Exception(string_format("Unable to link program object: %1", program_object.get_info_log()));
return program_object;
}
std::vector<DomNode> DomDocument::load(
IODevice &input,
bool eat_whitespace,
DomNode insert_point)
{
clear_all();
XMLTokenizer tokenizer(input);
tokenizer.set_eat_whitespace(eat_whitespace);
if (insert_point.is_element() == false)
insert_point = *this;
std::vector<DomNode> node_stack;
node_stack.push_back(insert_point);
std::vector<DomNode> result;
try
{
XMLToken cur_token;
tokenizer.next(&cur_token);
while (cur_token.type != XMLToken::NULL_TOKEN)
{
switch (cur_token.type)
{
case XMLToken::TEXT_TOKEN:
node_stack.back().append_child(create_text_node(cur_token.value));
if (node_stack.back() == insert_point)
result.push_back(node_stack.back().get_last_child());
break;
case XMLToken::CDATA_SECTION_TOKEN:
node_stack.back().append_child(create_cdata_section(cur_token.value));
if (node_stack.back() == insert_point)
result.push_back(node_stack.back().get_last_child());
break;
case XMLToken::ELEMENT_TOKEN:
if (cur_token.variant != XMLToken::END)
{
DomString namespace_uri = DomDocument_Impl::find_namespace_uri(cur_token.name, cur_token, node_stack.back());
DomElement element = create_element_ns(namespace_uri, cur_token.name);
node_stack.back().append_child(element);
if (node_stack.back() == insert_point)
result.push_back(node_stack.back().get_last_child());
int size = (int)cur_token.attributes.size();
for (int i = 0; i < size; i++)
{
XMLToken::Attribute &attribute = cur_token.attributes[i];
DomString attribute_namespace_uri = DomDocument_Impl::find_namespace_uri(attribute.first, cur_token, node_stack.back());
element.set_attribute_ns(
attribute_namespace_uri,
attribute.first,
attribute.second);
}
if (cur_token.variant == XMLToken::BEGIN)
node_stack.push_back(element);
}
else
{
node_stack.pop_back();
if (node_stack.empty()) throw Exception("Malformed XML tree!");
}
break;
case XMLToken::NULL_TOKEN:
break;
case XMLToken::ENTITY_REFERENCE_TOKEN:
break;
case XMLToken::ENTITY_TOKEN:
break;
case XMLToken::COMMENT_TOKEN:
node_stack.back().append_child(create_comment(cur_token.value));
if (node_stack.back() == insert_point)
result.push_back(node_stack.back().get_last_child());
break;
case XMLToken::DOCUMENT_TYPE_TOKEN:
break;
case XMLToken::NOTATION_TOKEN:
break;
case XMLToken::PROCESSING_INSTRUCTION_TOKEN:
node_stack.back().append_child(create_processing_instruction(cur_token.name, cur_token.value));
if (node_stack.back() == insert_point)
result.push_back(node_stack.back().get_last_child());
break;
}
tokenizer.next(&cur_token);
}
}
catch (const Exception& e)
{
for (auto & elem : result)
{
insert_point.remove_child(elem);
}
throw;
}
return result;
}
DomNode DomDocument::import_node(const DomNode &node, bool deep)
{
DomNode imported_node;
switch (node.get_node_type())
{
case NULL_NODE:
return imported_node;
case ELEMENT_NODE:
imported_node = create_element_ns(node.get_namespace_uri(), node.get_node_name());
break;
case ATTRIBUTE_NODE:
imported_node = create_attribute_ns(node.get_namespace_uri(), node.get_node_name());
imported_node.set_node_value(node.get_node_value());
break;
case TEXT_NODE:
imported_node = create_text_node(node.get_node_value());
break;
case CDATA_SECTION_NODE:
imported_node = create_cdata_section(node.get_node_value());
break;
case ENTITY_REFERENCE_NODE:
imported_node = create_entity_reference(node.get_node_name());
break;
case ENTITY_NODE:
return imported_node;
case PROCESSING_INSTRUCTION_NODE:
imported_node = create_processing_instruction(node.to_processing_instruction().get_target(), node.to_processing_instruction().get_data());
break;
case COMMENT_NODE:
imported_node = create_comment(node.get_node_value());
break;
case DOCUMENT_NODE:
imported_node = create_document_fragment();
break;
case DOCUMENT_TYPE_NODE:
return imported_node;
case DOCUMENT_FRAGMENT_NODE:
imported_node = create_document_fragment();
break;
case NOTATION_NODE:
return imported_node;
}
if (node.is_element())
{
DomElement import_element = imported_node.to_element();
DomNamedNodeMap node_attributes = node.get_attributes();
int size = node_attributes.get_length();
for (int index = 0; index < size; index++)
{
DomNode attr = node_attributes.item(index);
import_element.set_attribute_node_ns(import_node(attr, deep).to_attr());
}
}
if (deep)
{
DomNode cur = node.get_first_child();
while (!cur.is_null())
{
imported_node.append_child(import_node(cur, true));
cur = cur.get_next_sibling();
}
}
return imported_node;
}
XMLResourceNode XMLResourceDocument::create_resource(const std::string &resource_id, const std::string &type)
{
if (resource_exists(resource_id))
throw Exception(string_format("Resource %1 already exists", resource_id));
std::vector<std::string> path_elements = PathHelp::split_basepath(resource_id);
std::string name = PathHelp::get_filename(resource_id);
// Walk tree as deep as we can get:
DomNode parent = impl->document.get_document_element();
DomNode cur = parent.get_first_child();
auto path_it = path_elements.begin();
while (!cur.is_null() && path_it != path_elements.end())
{
if (cur.is_element() &&
cur.get_namespace_uri() == impl->ns_resources &&
cur.get_local_name() == "section")
{
DomElement element = cur.to_element();
std::string name = element.get_attribute_ns(impl->ns_resources, "name");
if (name == *path_it)
{
++path_it;
parent = cur;
cur = cur.get_first_child();
continue;
}
}
cur = cur.get_next_sibling();
}
// Create any missing parent nodes:
std::string prefix = parent.get_prefix();
while (path_it != path_elements.end())
{
DomElement section;
if (prefix.empty())
{
section = impl->document.create_element_ns( impl->ns_resources, (*path_it) );
}
else
{
section = impl->document.create_element_ns( impl->ns_resources,(prefix + ":" + *path_it));
}
parent.append_child(section);
parent = section;
++path_it;
}
// Create node:
DomElement resource_node;
if (prefix.empty())
{
resource_node = impl->document.create_element_ns( impl->ns_resources, (type));
}
else
{
resource_node = impl->document.create_element_ns( impl->ns_resources,(prefix + ":" + type));
}
resource_node.set_attribute_ns(
impl->ns_resources,
prefix.empty() ? "name" : (prefix + ":name"),
name);
parent.append_child(resource_node);
// Create resource:
impl->resources[resource_id] = XMLResourceNode(resource_node, *this);
return impl->resources[resource_id];
}
