From a79e0988174c51b44e9e549d8026e38ad4839e1a Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@netsurf-browser.org>
Date: Sat, 10 Nov 2012 11:20:31 +0000
Subject: remove redundant domutils and put functionality in existing
 utils/libdom

---
 utils/libdom.c | 144 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 143 insertions(+), 1 deletion(-)

(limited to 'utils/libdom.c')

diff --git a/utils/libdom.c b/utils/libdom.c
index 95f7254f9..756465a02 100644
--- a/utils/libdom.c
+++ b/utils/libdom.c
@@ -21,9 +21,13 @@
  */
 
 #include <assert.h>
+#include <dom/dom.h>
+#include <dom/bindings/hubbub/parser.h>
 
-#include "utils/libdom.h"
+#include "utils/config.h"
+#include "utils/log.h"
 
+#include "utils/libdom.h"
 
 /* exported interface documented in libdom.h */
 bool libdom_treewalk(dom_node *root,
@@ -129,6 +133,7 @@ struct find_element_ctx {
 	lwc_string *search;
 	dom_node *found;
 };
+
 /* libdom_treewalk callback for libdom_find_element */
 static bool libdom_find_element_callback(dom_node *node, dom_string *name,
 		void *ctx)
@@ -162,3 +167,140 @@ dom_node *libdom_find_element(dom_node *node, lwc_string *element_name)
 
 	return data.found;
 }
+
+
+/* exported interface documented in libdom.h */
+dom_node *libdom_find_first_element(dom_node *parent, lwc_string *element_name)
+{
+	dom_node *element;
+	dom_exception exc;
+	dom_string *node_name = NULL;
+	dom_node_type node_type;
+	dom_node *next_node;
+
+	exc = dom_node_get_first_child(parent, &element);
+	if ((exc != DOM_NO_ERR) || (element == NULL)) {
+		return NULL;
+	}
+
+	/* find first node thats a element */
+	do {
+		exc = dom_node_get_node_type(element, &node_type);
+
+		if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) {
+			exc = dom_node_get_node_name(element, &node_name);
+			if ((exc == DOM_NO_ERR) && (node_name != NULL)) {
+				if (dom_string_caseless_lwc_isequal(node_name,
+						     element_name)) {
+					dom_string_unref(node_name);
+					break;
+				}
+				dom_string_unref(node_name);
+			}
+		}
+
+		exc = dom_node_get_next_sibling(element, &next_node);
+		dom_node_unref(element);
+		if (exc == DOM_NO_ERR) {
+			element = next_node;
+		} else {
+			element = NULL;
+		}
+	} while (element != NULL);
+
+	return element;
+}
+
+/* exported interface documented in libdom.h */
+void libdom_iterate_child_elements(dom_node *parent, 
+		libdom_iterate_cb cb, void *ctx)
+{
+	dom_nodelist *children;
+	uint32_t index, num_children;
+	dom_exception error;
+
+	error = dom_node_get_child_nodes(parent, &children);
+	if (error != DOM_NO_ERR || children == NULL)
+		return;
+
+	error = dom_nodelist_get_length(children, &num_children);
+	if (error != DOM_NO_ERR) {
+		dom_nodelist_unref(children);
+		return;
+	}
+
+	for (index = 0; index < num_children; index++) {
+		dom_node *child;
+		dom_node_type type;
+
+		error = dom_nodelist_item(children, index, &child);
+		if (error != DOM_NO_ERR) {
+			dom_nodelist_unref(children);
+			return;
+		}
+
+		error = dom_node_get_node_type(child, &type);
+		if (error == DOM_NO_ERR && type == DOM_ELEMENT_NODE) {
+			if (cb(child, ctx) == false) {
+				dom_node_unref(child);
+				dom_nodelist_unref(children);
+				return;
+			}
+		}
+
+		dom_node_unref(child);
+	}
+
+	dom_nodelist_unref(children);
+}
+
+static void ignore_dom_msg(uint32_t severity, void *ctx, const char *msg, ...)
+{
+}
+
+/* exported interface documented in libdom.h */
+dom_document *libdom_parse_file(const char *filename, const char *encoding)
+{
+	dom_hubbub_error error;
+	dom_hubbub_parser *parser;
+	dom_document *document;
+	FILE *fp = NULL;
+#define BUF_SIZE 512
+	uint8_t buf[BUF_SIZE];
+
+	fp = fopen(filename, "r");
+	if (fp == NULL) {
+		return NULL;
+	}
+
+	parser = dom_hubbub_parser_create(encoding, false, false,
+			ignore_dom_msg, NULL, NULL, &document);
+	if (parser == NULL) {
+		fclose(fp);
+		return NULL;
+	}
+
+	while (feof(fp) == 0) {
+		size_t read = fread(buf, sizeof(buf[0]), BUF_SIZE, fp);
+
+		error = dom_hubbub_parser_parse_chunk(parser, buf, read);
+		if (error != DOM_HUBBUB_OK) {
+			dom_node_unref(document);
+			dom_hubbub_parser_destroy(parser);
+			fclose(fp);
+			return NULL;
+		}
+	}
+
+	error = dom_hubbub_parser_completed(parser);
+	if (error != DOM_HUBBUB_OK) {
+		dom_node_unref(document);
+		dom_hubbub_parser_destroy(parser);
+		fclose(fp);
+		return NULL;
+	}
+
+	dom_hubbub_parser_destroy(parser);
+
+	return document;
+}
-- 
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