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

/* Node 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 Node {
	private dom_node *node;
	prologue %{
#define LIST_PROXY_MAGIC MAGIC(LIST_PROXY)
%}
};

init Node(struct dom_node *node)
%{
	priv->node = node;
	dom_node_ref(node);
	priv->parent.is_node = true;
%}

fini Node()
%{
	dom_node_unref(priv->node);
%}

getter Node::nodeType()
%{
	dom_exception exc;
	dom_node_type ntype;
	exc = dom_node_get_node_type(priv->node, &ntype);
	if (exc != DOM_NO_ERR) return 0;
	duk_push_uint(ctx, (duk_uint_t)ntype);
	return 1;
%}

getter Node::nodeName()
%{
	dom_exception exc;
	dom_string *str = NULL;
	exc = dom_node_get_node_name(priv->node, &str);
	if (exc != DOM_NO_ERR) return 0;
	duk_push_lstring(ctx, dom_string_data(str), dom_string_length(str));
	dom_string_unref(str);
	return 1;
%}

getter Node::baseURI()
%{
	dom_exception exc;
	dom_string *base = NULL;
	exc = dom_node_get_base(priv->node, &base);
	if (exc != DOM_NO_ERR) return 0;
	assert(base != NULL);
	duk_push_lstring(ctx, dom_string_data(base), dom_string_length(base));
	dom_string_unref(base);
	return 1;
%}

getter Node::ownerDocument()
%{
	dom_exception exc;
	dom_node *doc;
	exc = dom_node_get_owner_document(priv->node, &doc);
	if (exc != DOM_NO_ERR) return 0;
	if (doc == NULL) return 0;
	dukky_push_node(ctx, doc);
	dom_node_unref(doc);
	return 1;
%}

getter Node::parentNode()
%{
	dom_exception exc;
	dom_node *pnode = NULL;
	exc = dom_node_get_parent_node(priv->node, &pnode);
	if (exc != DOM_NO_ERR) return 0;
	dukky_push_node(ctx, pnode);
	dom_node_unref(pnode);
	return 1;
%}

getter Node::parentElement()
%{
	dom_exception exc;
	dom_node *pnode = NULL;
	dom_node_type ntype = DOM_NODE_TYPE_COUNT + 1;
	exc = dom_node_get_parent_node(priv->node, &pnode);
	if (exc != DOM_NO_ERR) return 0;
	if (pnode != NULL) {
		exc = dom_node_get_node_type(pnode, &ntype);
		if (exc != DOM_NO_ERR) { dom_node_unref(pnode); return 0; }
	}
	dukky_push_node(ctx, (ntype == DOM_ELEMENT_NODE) ? pnode : NULL);
	dom_node_unref(pnode);
	return 1;
%}

method Node::hasChildNodes()
%{
	dom_exception exc;
	bool res;
	exc = dom_node_has_child_nodes(priv->node, &res);
	if (exc != DOM_NO_ERR) return 0;
	duk_push_boolean(ctx, res);
	return 1;
%}

getter Node::childNodes()
%{
	dom_exception exc;
	dom_nodelist *nlist = NULL;
	duk_set_top(ctx, 0);
	duk_push_this(ctx);
	duk_get_prop_string(ctx, 0, MAGIC(childNodes));
	if (duk_is_undefined(ctx, -1)) {
		duk_pop(ctx);
		exc = dom_node_get_child_nodes(priv->node, &nlist);
		if (exc != DOM_NO_ERR) return 0;
		duk_get_global_string(ctx, LIST_PROXY_MAGIC);
		duk_push_pointer(ctx, nlist);
		if (dukky_create_object(ctx, PROTO_NAME(NODELIST), 1) != DUK_EXEC_SUCCESS) {
			dom_nodelist_unref(nlist);
			return 0;
		}
		dom_nodelist_unref(nlist);
		if (dukky_pcall(ctx, 1, false) != 0) {
			NSLOG(dukky, DEBUG, "Unable to construct nodelist?");
			return 0; /* coerced to undefined */
		}
		duk_dup(ctx, -1);
		duk_put_prop_string(ctx, 0, MAGIC(childNodes));
	}
	return 1;
%}

getter Node::firstChild()
%{
	dom_exception exc;
	dom_node *n;
	exc = dom_node_get_first_child(priv->node, &n);
	if (exc != DOM_NO_ERR) return 0;
	if (dukky_push_node(ctx, n) == false) {
		dom_node_unref(n);
		return 0;
	}
	dom_node_unref(n);
	return 1;
%}

getter Node::lastChild()
%{
	dom_exception exc;
	dom_node *n;
	exc = dom_node_get_last_child(priv->node, &n);
	if (exc != DOM_NO_ERR) return 0;
	if (dukky_push_node(ctx, n) == false) {
		dom_node_unref(n);
		return 0;
	}
	dom_node_unref(n);
	return 1;
%}

getter Node::previousSibling()
%{
	dom_exception exc;
	dom_node *n;
	exc = dom_node_get_previous_sibling(priv->node, &n);
	if (exc != DOM_NO_ERR) return 0;
	if (dukky_push_node(ctx, n) == false) {
		dom_node_unref(n);
		return 0;
	}
	dom_node_unref(n);
	return 1;
%}

getter Node::nextSibling()
%{
	dom_exception exc;
	dom_node *n;
	exc = dom_node_get_next_sibling(priv->node, &n);
	if (exc != DOM_NO_ERR) return 0;
	if (dukky_push_node(ctx, n) == false) {
		dom_node_unref(n);
		return 0;
	}
	dom_node_unref(n);
	return 1;
%}

getter Node::nodeValue()
%{
	dom_exception exc;
	dom_string *content;

	exc = dom_node_get_node_value(priv->node, &content);
	if (exc != DOM_NO_ERR) {
		return 0;
	}

	if (content != NULL) {
		duk_push_lstring(ctx, dom_string_data(content), dom_string_length(content));
		dom_string_unref(content);
		return 1;
	}
	return 0;
%}

setter Node::nodeValue()
%{
	dom_exception exc;
	dom_string *content;
	duk_size_t slen;
	const char *s = duk_safe_to_lstring(ctx, 0, &slen);
	exc = dom_string_create((const uint8_t *)s, slen, &content);
	if (exc != DOM_NO_ERR) return 0;
	exc = dom_node_set_node_value(priv->node, content);
	dom_string_unref(content);
	return 0;
%}

getter Node::textContent()
%{
	dom_exception exc;
	dom_string *content;

	exc = dom_node_get_text_content(priv->node, &content);
	if (exc != DOM_NO_ERR) {
		return 0;
	}

	if (content != NULL) {
		duk_push_lstring(ctx, dom_string_data(content), dom_string_length(content));
		dom_string_unref(content);
		return 1;
	}
	return 0;
%}

setter Node::textContent()
%{
	dom_exception exc;
	dom_string *content;
	duk_size_t slen;
	const char *s = duk_safe_to_lstring(ctx, 0, &slen);
	exc = dom_string_create((const uint8_t *)s, slen, &content);
	if (exc != DOM_NO_ERR) return 0;
	exc = dom_node_set_text_content(priv->node, content);
	dom_string_unref(content);
	return 0;
%}

method Node::normalize()
%{
	dom_exception exc;
	exc = dom_node_normalize(priv->node);
	if (exc != DOM_NO_ERR) return 0;
	return 0;
%}

method Node::cloneNode()
%{
	dom_exception exc;
	bool deep;
	dom_node *clone;

	deep = duk_to_boolean(ctx, 0);

	exc = dom_node_clone_node(priv->node, deep, &clone);
	if (exc != DOM_NO_ERR) return 0;
	duk_set_top(ctx, 0);
	dukky_push_node(ctx, clone);
	dom_node_unref(clone);
	return 1;
%}

method Node::isEqualNode()
%{
	dom_exception exc;
	bool result;

	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	exc = dom_node_is_equal(priv->node, other->node, &result);
	if (exc != DOM_NO_ERR) return 0;
	duk_push_boolean(ctx, result);
	return 1;
%}

method Node::compareDocumentPosition()
%{
	dom_exception exc;
	uint16_t ret;

	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	exc = dom_node_compare_document_position(priv->node, other->node,
			&ret);

	if (exc != DOM_NO_ERR) return 0;

	duk_push_uint(ctx, ret);

	return 1;
%}

method Node::contains()
%{
	dom_exception exc;
	uint16_t ret;

	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	/* Note that inclusive descendant says *IS* or *CONTAINED_BY* */
	if (priv->node == other->node) {
		duk_push_boolean(ctx, true);
		return 1;
	}

	exc = dom_node_compare_document_position(priv->node, other->node,
			&ret);

	if (exc != DOM_NO_ERR) return 0;

	duk_push_boolean(ctx, ret == DOM_DOCUMENT_POSITION_CONTAINED_BY);

	return 1;
%}

method Node::lookupPrefix()
%{
	dom_exception exc;
	dom_string *ns, *pfx;
	duk_size_t size;
	const char *s = duk_safe_to_lstring(ctx, 0, &size);
	exc = dom_string_create((const uint8_t *)s, size, &ns);
	if (exc != DOM_NO_ERR) return 0;
	exc = dom_node_lookup_prefix(priv->node, ns, &pfx);
	dom_string_unref(ns);
	if (exc != DOM_NO_ERR) return 0;
	if (pfx == NULL) return 0;
	duk_push_lstring(ctx, dom_string_data(pfx), dom_string_length(pfx));
	dom_string_unref(pfx);
	return 0;
%}

method Node::lookupNamespaceURI()
%{
	dom_exception exc;
	dom_string *ns, *pfx;
	duk_size_t size;
	const char *s = duk_safe_to_lstring(ctx, 0, &size);
	exc = dom_string_create((const uint8_t *)s, size, &pfx);
	if (exc != DOM_NO_ERR) return 0;
	exc = dom_node_lookup_namespace(priv->node, pfx, &ns);
	dom_string_unref(pfx);
	if (exc != DOM_NO_ERR) return 0;
	if (ns == NULL) return 0;
	duk_push_lstring(ctx, dom_string_data(ns), dom_string_length(ns));
	dom_string_unref(ns);
	return 0;
%}


method Node::isDefaultNamespace()
%{
	dom_exception exc;
	dom_string *ns;
	duk_size_t size;
	const char *s = duk_safe_to_lstring(ctx, 0, &size);
	bool ret;
	exc = dom_string_create((const uint8_t *)s, size, &ns);
	if (exc != DOM_NO_ERR) return 0;
	exc = dom_node_is_default_namespace(priv->node, ns, &ret);
	dom_string_unref(ns);
	if (exc != DOM_NO_ERR) return 0;
	duk_push_boolean(ctx, ret);
	return 1;
%}

method Node::insertBefore()
%{
	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	dom_node *before = NULL;

	if (duk_get_top(ctx) == 2) {
		if (!dukky_instanceof(ctx, 1, PROTO_NAME(NODE))) return 0;
		duk_get_prop_string(ctx, 1, PRIVATE_MAGIC);
		node_private_t *another = duk_get_pointer(ctx, -1);
		before = another->node;
		duk_pop(ctx);
	}

	dom_exception err;
	dom_node *spare;

	err = dom_node_insert_before(priv->node, other->node, before, &spare);
	if (err != DOM_NO_ERR) return 0;
	dukky_push_node(ctx, spare);
	dom_node_unref(spare);

	return 1;
%}

method Node::appendChild()
%{
	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	dom_exception err;
	dom_node *spare;

	NSLOG(dukky, DEEPDEBUG, "About to append %p to %p", other->node, priv->node);
	err = dom_node_append_child(priv->node, other->node, &spare);
	if (err != DOM_NO_ERR) return 0;
	dukky_push_node(ctx, spare);
	dom_node_unref(spare);

	return 1;
%}

method Node::replaceChild()
%{
	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	if (!dukky_instanceof(ctx, 1, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 1, PRIVATE_MAGIC);
	node_private_t *old = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	dom_exception err;
	dom_node *spare;

	err = dom_node_replace_child(priv->node, other->node, old->node, &spare);
	if (err != DOM_NO_ERR) return 0;
	dukky_push_node(ctx, spare);
	dom_node_unref(spare);

	return 1;
%}

method Node::removeChild()
%{
	if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0;

	duk_get_prop_string(ctx, 0, PRIVATE_MAGIC);
	node_private_t *other = duk_get_pointer(ctx, -1);
	duk_pop(ctx);

	dom_exception err;
	dom_node *spare;

	err = dom_node_remove_child(priv->node, other->node, &spare);
	if (err != DOM_NO_ERR) return 0;
	dukky_push_node(ctx, spare);
	dom_node_unref(spare);

	return 1;
%}