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netsurf/javascript/duktape/Element.bnd
2015-09-28 08:57:45 +01:00

200 lines
4.3 KiB
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/* document binding for browser using duktape and libdom
*
* Copyright 2015 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* Released under the terms of the MIT License,
* http://www.opensource.org/licenses/mit-license
*/
class Element {
prologue %{
%};
};
init Element(struct dom_element *element::node);
getter Element::firstElementChild()
%{
dom_node *element;
dom_exception exc;
dom_node_type node_type;
dom_node *next_node;
exc = dom_node_get_first_child(((node_private_t*)priv)->node, &element);
if (exc != DOM_NO_ERR) {
return 0;
}
while (element != NULL) {
exc = dom_node_get_node_type(element, &node_type);
if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
/* found it */
dukky_push_node(ctx, (dom_node *)element);
dom_node_unref(element);
return 1;
}
exc = dom_node_get_next_sibling(element, &next_node);
dom_node_unref(element);
if (exc == DOM_NO_ERR) {
element = next_node;
} else {
element = NULL;
}
}
return 0;
%}
getter Element::lastElementChild()
%{
dom_node *element;
dom_exception exc;
dom_node_type node_type;
dom_node *next_node;
exc = dom_node_get_last_child(((node_private_t*)priv)->node, &element);
if (exc != DOM_NO_ERR) {
return 0;
}
while (element != NULL) {
exc = dom_node_get_node_type(element, &node_type);
if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
/* found it */
dukky_push_node(ctx, (dom_node *)element);
dom_node_unref(element);
return 1;
}
exc = dom_node_get_previous_sibling(element, &next_node);
dom_node_unref(element);
if (exc == DOM_NO_ERR) {
element = next_node;
} else {
element = NULL;
}
}
return 0;
%}
getter Element::previousElementSibling()
%{
dom_node *element;
dom_exception exc;
dom_node_type node_type;
dom_node *sib_node;
exc = dom_node_get_previous_sibling(((node_private_t *)priv)->node, &element);
if (exc != DOM_NO_ERR) {
return 0;
}
while (element != NULL) {
exc = dom_node_get_node_type(element, &node_type);
if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
/* found it */
dukky_push_node(ctx, (dom_node *)element);
dom_node_unref(element);
return 1;
}
exc = dom_node_get_previous_sibling(element, &sib_node);
dom_node_unref(element);
if (exc == DOM_NO_ERR) {
element = sib_node;
} else {
element = NULL;
}
}
return 0;
%}
getter Element::nextElementSibling()
%{
dom_node *element;
dom_exception exc;
dom_node_type node_type;
dom_node *sib_node;
exc = dom_node_get_next_sibling(((node_private_t *)priv)->node, &element);
if (exc != DOM_NO_ERR) {
return 0;
}
while (element != NULL) {
exc = dom_node_get_node_type(element, &node_type);
if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
/* found it */
dukky_push_node(ctx, (dom_node *)element);
dom_node_unref(element);
return 1;
}
exc = dom_node_get_next_sibling(element, &sib_node);
dom_node_unref(element);
if (exc == DOM_NO_ERR) {
element = sib_node;
} else {
element = NULL;
}
}
return 0;
%}
getter Element::childElementCount()
%{
dom_node *element;
dom_exception exc;
dom_node_type node_type;
dom_node *next_node;
duk_uint_t jsret = 0;
exc = dom_node_get_first_child(((node_private_t *)priv)->node, &element);
if (exc != DOM_NO_ERR) {
return 0;
}
while (element != NULL) {
exc = dom_node_get_node_type(element, &node_type);
if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
jsret += 1;
}
exc = dom_node_get_next_sibling(element, &next_node);
dom_node_unref(element);
if (exc == DOM_NO_ERR) {
element = next_node;
} else {
element = NULL;
}
}
LOG("I found %u of them", jsret);
duk_push_uint(ctx, jsret);
return 1;
%}
method Element::getElementsByTagName ()
%{
dom_nodelist *nlist = NULL;
dom_exception exc;
dom_string *tagname;
duk_size_t len;
const char *str = duk_to_lstring(ctx, 0, &len);
exc = dom_string_create((const uint8_t *)str, len, &tagname);
if (exc != DOM_NO_ERR) return 0;
exc = dom_element_get_elements_by_tag_name(priv->parent.node,
tagname, &nlist);
dom_string_unref(tagname);
if (exc != DOM_NO_ERR) return 0;
duk_push_pointer(ctx, nlist);
dukky_create_object(ctx, PROTO_NAME(NODELIST), 1);
dom_nodelist_unref(nlist);
return 1;
%}