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netsurf/content/handlers/javascript/duktape/DOMImplementation.bnd

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/* DOMImplementation binding for browser using duktape and libdom
*
* Copyright 2020 Daniel Silverstone <dsilvers@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
*/
prologue DOMImplementation ()
%{
#include "utils/corestrings.h"
%}
method DOMImplemention::hasFeature ()
%{
/* Always return true */
duk_push_bool(ctx, true);
return 1;
%}
method DOMImplementation::createHTMLDocument ()
%{
duk_size_t text_len;
const char *text = duk_safe_to_lstring(ctx, 0, &text_len);
struct dom_document *doc = NULL, *ret = NULL;
struct dom_document_type *doctype = NULL;
struct dom_html_element *html = NULL, *head = NULL, *title = NULL, *body = NULL;
struct dom_node *spare_ref = NULL;
dom_string *text_str = NULL;
dom_exception exc;
exc = dom_string_create((const uint8_t*)text, text_len, &text_str);
if (exc != DOM_NO_ERR) goto out;
exc = dom_implementation_create_document(
DOM_IMPLEMENTATION_HTML,
NULL, NULL,
NULL,
NULL, NULL,
&doc
);
if (exc != DOM_NO_ERR) goto out;
exc = dom_implementation_create_document_type(
"html", NULL, NULL, &doctype);
if (exc != DOM_NO_ERR) goto out;
exc = dom_node_append_child(doc, doctype, &spare_ref);
if (exc != DOM_NO_ERR) goto out;
if (spare_ref != NULL) { dom_node_unref(spare_ref); spare_ref = NULL; }
exc = dom_document_create_element_ns(doc, corestring_dom_html_namespace,
corestring_dom_HTML, &html);
if (exc != DOM_NO_ERR) goto out;
exc = dom_document_create_element_ns(doc, corestring_dom_html_namespace,
corestring_dom_HEAD, &head);
if (exc != DOM_NO_ERR) goto out;
exc = dom_document_create_element_ns(doc, corestring_dom_html_namespace,
corestring_dom_TITLE, &title);
if (exc != DOM_NO_ERR) goto out;
exc = dom_document_create_element_ns(doc, corestring_dom_html_namespace,
corestring_dom_BODY, &body);
if (exc != DOM_NO_ERR) goto out;
exc = dom_node_set_text_content(title, text_str);
if (exc != DOM_NO_ERR) goto out;
exc = dom_node_append_child(head, title, &spare_ref);
if (exc != DOM_NO_ERR) goto out;
if (spare_ref != NULL) { dom_node_unref(spare_ref); spare_ref = NULL; }
exc = dom_node_append_child(html, head, &spare_ref);
if (exc != DOM_NO_ERR) goto out;
if (spare_ref != NULL) { dom_node_unref(spare_ref); spare_ref = NULL; }
exc = dom_node_append_child(html, body, &spare_ref);
if (exc != DOM_NO_ERR) goto out;
if (spare_ref != NULL) { dom_node_unref(spare_ref); spare_ref = NULL; }
exc = dom_node_append_child(doc, html, &spare_ref);
if (exc != DOM_NO_ERR) goto out;
if (spare_ref != NULL) { dom_node_unref(spare_ref); spare_ref = NULL; }
ret = doc;
doc = NULL;
out:
if (text_str != NULL) {
dom_string_unref(text_str);
}
if (doc != NULL) {
dom_node_unref(doc);
}
if (html != NULL) {
dom_node_unref(html);
}
if (head != NULL) {
dom_node_unref(head);
}
if (title != NULL) {
dom_node_unref(title);
}
if (body != NULL) {
dom_node_unref(body);
}
if (doctype != NULL) {
dom_node_unref(doctype);
}
if (ret != NULL) {
dukky_push_node(ctx, (struct dom_node *)ret);
dom_node_unref(ret);
return 1;
}
return 0; /* Coerced to undefined */
%}