ArvDomNode*
arv_dom_node_replace_child (ArvDomNode* self, ArvDomNode* new_child, ArvDomNode* old_child)
{
ArvDomNode *next_sibling;
ArvDomNode *node;
if (new_child == NULL)
return arv_dom_node_remove_child (self, old_child);
if (!ARV_IS_DOM_NODE (new_child)) {
g_critical ("%s: new_child is not a ArvDomNode", G_STRFUNC);
if (ARV_IS_DOM_NODE (old_child))
g_object_unref (old_child);
return NULL;
}
if (new_child->parent_node != NULL)
arv_dom_node_remove_child (self, new_child);
if (old_child == NULL) {
arv_debug_dom ("[ArvDomNode::replace_child] old_child == NULL)");
g_object_unref (new_child);
return NULL;
}
if (!ARV_IS_DOM_NODE (old_child)) {
g_critical ("%s: old_child is not a ArvDomNode", G_STRFUNC);
g_object_unref (new_child);
return NULL;
}
if (!ARV_IS_DOM_NODE (self)) {
g_critical ("%s: self is not a ArvDomNode", G_STRFUNC);
g_object_unref (new_child);
g_object_unref (old_child);
return NULL;
}
if (old_child->parent_node != self) {
g_object_unref (new_child);
g_object_unref (old_child);
return NULL;
}
next_sibling = old_child->next_sibling;
node = arv_dom_node_remove_child (self, old_child);
if (node != old_child) {
g_object_unref (new_child);
g_object_unref (old_child);
return NULL;
}
if (next_sibling == NULL)
arv_dom_node_append_child (self, new_child);
else
arv_dom_node_insert_before (self, new_child, next_sibling);
return old_child;
}
gboolean
arv_dom_node_has_child_nodes (ArvDomNode* self)
{
g_return_val_if_fail (ARV_IS_DOM_NODE (self), FALSE);
return self->first_child != NULL;
}
void
arv_dom_node_changed (ArvDomNode *self)
{
ArvDomNode *parent_node;
ArvDomNode *child_node;
ArvDomNodeClass *node_class;
g_return_if_fail (ARV_IS_DOM_NODE (self));
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->changed)
node_class->changed (self);
child_node = self;
for (parent_node = self->parent_node;
parent_node != NULL;
parent_node = parent_node->parent_node) {
node_class = ARV_DOM_NODE_GET_CLASS (parent_node);
if (node_class->child_changed == NULL ||
!node_class->child_changed (parent_node, child_node))
break;
child_node = parent_node;
}
}
ArvDomNode*
arv_dom_node_get_next_sibling (ArvDomNode* self)
{
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
return self->next_sibling;
}
ArvDomNode*
arv_dom_node_get_last_child (ArvDomNode* self)
{
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
return self->last_child;
}
ArvDomNode*
arv_dom_node_get_parent_node (ArvDomNode* self)
{
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
return self->parent_node;
}
ArvDomNode *
arv_dom_node_append_child (ArvDomNode* self, ArvDomNode* new_child)
{
ArvDomNodeClass *node_class;
if (new_child == NULL)
return NULL;
g_return_val_if_fail (ARV_IS_DOM_NODE (new_child), NULL);
if (!ARV_IS_DOM_NODE (self)) {
g_critical ("%s: self is not a ArvDomNode", G_STRFUNC);
g_object_unref (new_child);
return NULL;
}
if (new_child->parent_node != NULL)
arv_dom_node_remove_child (self, new_child);
if (!ARV_DOM_NODE_GET_CLASS (self)->can_append_child (self, new_child)) {
arv_log_dom ("[ArvDomNode::append_child] Can't append '%s' to '%s'",
arv_dom_node_get_node_name (new_child),
arv_dom_node_get_node_name (self));
g_object_unref (new_child);
return NULL;
}
if (self->first_child == NULL)
self->first_child = new_child;
if (self->last_child != NULL)
self->last_child->next_sibling = new_child;
new_child->parent_node = self;
new_child->next_sibling = NULL;
new_child->previous_sibling = self->last_child;
self->last_child = new_child;
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->post_new_child)
node_class->post_new_child (self, new_child);
arv_dom_node_changed (self);
return new_child;
}
void
arv_dom_document_append_from_memory (ArvDomDocument *document, ArvDomNode *node,
const void *buffer, int size, GError **error)
{
g_return_if_fail (ARV_IS_DOM_DOCUMENT (document));
g_return_if_fail (ARV_IS_DOM_NODE (node) || node == NULL);
g_return_if_fail (buffer != NULL);
_parse_memory (document, node, buffer, size, error);
}
ArvDomNode*
arv_dom_node_remove_child (ArvDomNode* self, ArvDomNode* old_child)
{
ArvDomNode *node;
ArvDomNodeClass *node_class;
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
if (old_child == NULL)
return NULL;
g_return_val_if_fail (ARV_IS_DOM_NODE (old_child), NULL);
for (node = self->first_child;
node != NULL && node != old_child;
node = node->next_sibling);
if (node == NULL)
return NULL;
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->pre_remove_child)
node_class->pre_remove_child (self, old_child);
if (self->first_child == old_child)
self->first_child = old_child->next_sibling;
if (self->last_child == old_child)
self->last_child = old_child->previous_sibling;
if (old_child->next_sibling != NULL)
old_child->next_sibling->previous_sibling = old_child->previous_sibling;
if (old_child->previous_sibling != NULL)
old_child->previous_sibling->next_sibling = old_child->next_sibling;
old_child->parent_node = NULL;
old_child->next_sibling = NULL;
old_child->previous_sibling = NULL;
arv_dom_node_changed (self);
return old_child;
}
void
arv_dom_node_write_to_stream (ArvDomNode *self, GOutputStream *stream, GError **error)
{
ArvDomNodeClass *node_class;
g_return_if_fail (ARV_IS_DOM_NODE (self));
g_return_if_fail (G_IS_OUTPUT_STREAM (stream));
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->write_to_stream != NULL)
node_class->write_to_stream (self, stream, error);
}
ArvDomDocument*
arv_dom_node_get_owner_document (ArvDomNode* self)
{
ArvDomNode *parent;
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
for (parent = self;
parent != NULL &&
!ARV_IS_DOM_DOCUMENT (parent);
parent = parent->parent_node);
return ARV_DOM_DOCUMENT (parent);
}
ArvDomNodeList *
arv_dom_node_child_list_new (ArvDomNode *parent_node)
{
ArvDomNodeChildList *list;
g_return_val_if_fail (ARV_IS_DOM_NODE (parent_node), NULL);
list = g_object_new (ARV_TYPE_DOM_NODE_CHILD_LIST, NULL);
list->parent_node = parent_node;
g_object_weak_ref (G_OBJECT (parent_node), arv_dom_node_child_list_weak_notify_cb, list);
return ARV_DOM_NODE_LIST (list);
}
ArvDomNodeList*
arv_dom_node_get_child_nodes (ArvDomNode* self)
{
ArvDomNodeList *list;
g_return_val_if_fail (ARV_IS_DOM_NODE (self), NULL);
list = g_object_get_data (G_OBJECT (self), "child-nodes");
if (list == NULL) {
list = arv_dom_node_child_list_new (self);
g_object_set_data_full (G_OBJECT (self), "child-nodes", list, g_object_unref);
}
return list;
}
static void
arv_dom_parser_start_element(void *user_data,
const xmlChar *name,
const xmlChar **attrs)
{
ArvDomSaxParserState *state = user_data;
ArvDomNode *node;
int i;
if (state->is_error) {
state->error_depth++;
return;
}
if (state->document == NULL) {
state->document = arv_dom_implementation_create_document (NULL, (char *) name);
state->current_node = ARV_DOM_NODE (state->document);
g_return_if_fail (ARV_IS_DOM_DOCUMENT (state->document));
}
node = ARV_DOM_NODE (arv_dom_document_create_element (ARV_DOM_DOCUMENT (state->document), (char *) name));
if (ARV_IS_DOM_NODE (node) && arv_dom_node_append_child (state->current_node, node) != NULL) {
if (attrs != NULL)
for (i = 0; attrs[i] != NULL && attrs[i+1] != NULL; i += 2)
arv_dom_element_set_attribute (ARV_DOM_ELEMENT (node),
(char *) attrs[i],
(char *) attrs[i+1]);
state->current_node = node;
state->is_error = FALSE;
state->error_depth = 0;
} else {
state->is_error = TRUE;
state->error_depth = 1;
}
}
ArvDomNode*
arv_dom_node_insert_before (ArvDomNode* self, ArvDomNode* new_child, ArvDomNode* ref_child)
{
ArvDomNodeClass *node_class;
if (ref_child == NULL)
arv_dom_node_append_child (self, new_child);
g_return_val_if_fail (ARV_IS_DOM_NODE (new_child), NULL);
if (new_child->parent_node != NULL)
arv_dom_node_remove_child (self, new_child);
if (!ARV_IS_DOM_NODE (self)) {
g_critical ("%s: self is not a ArvDomNode", G_STRFUNC);
g_object_unref (new_child);
return NULL;
}
if (!ARV_IS_DOM_NODE (ref_child)) {
g_critical ("%s: ref_child is not a ArvDomNode", G_STRFUNC);
g_object_unref (new_child);
return NULL;
}
if (ref_child->parent_node != self) {
arv_debug_dom ("[ArvDomNode::insert_before] Ref child '%s' doesn't belong to '%s'",
arv_dom_node_get_node_name (ref_child),
arv_dom_node_get_node_name (self));
g_object_unref (new_child);
return NULL;
}
if (!ARV_DOM_NODE_GET_CLASS (self)->can_append_child (self, new_child)) {
arv_log_dom ("[ArvDomNode::insert_before] Can't append '%s' to '%s'",
arv_dom_node_get_node_name (new_child),
arv_dom_node_get_node_name (self));
g_object_unref (new_child);
return NULL;
}
new_child->parent_node = self;
new_child->next_sibling = ref_child;
new_child->previous_sibling = ref_child->previous_sibling;
if (ref_child->previous_sibling == NULL)
self->first_child = new_child;
else
ref_child->previous_sibling->next_sibling = new_child;
ref_child->previous_sibling = new_child;
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->post_new_child)
node_class->post_new_child (self, new_child);
arv_dom_node_changed (self);
return new_child;
}
