From: Michael Orlitzky <michael@orlitzky.com>
Date: Wed, 4 Oct 2023 04:11:11 +0000 (-0400)
Subject: src/svgtiny.c: initialize the libcss context in svgtiny_parse()
X-Git-Url: http://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=b95ec8cedeffd1f1050c92bb934751811fa3c6df;p=libsvgtiny.git

src/svgtiny.c: initialize the libcss context in svgtiny_parse()

Before we begin parsing, we have to initialize our new css_select_ctx
by calling css_select_ctx_create(). Later, when parsing is complete,
we css_select_ctx_destroy() it.
---

diff --git a/src/svgtiny.c b/src/svgtiny.c
index 2ca5a58..3b886fe 100644
--- a/src/svgtiny.c
+++ b/src/svgtiny.c
@@ -17,6 +17,8 @@
 #include <dom/dom.h>
 #include <dom/bindings/xml/xmlparser.h>
 
+#include <libcss/libcss.h>
+
 #include "svgtiny.h"
 #include "svgtiny_internal.h"
 
@@ -610,6 +612,7 @@ svgtiny_code svgtiny_parse(struct svgtiny_diagram *diagram,
 		const char *buffer, size_t size, const char *url,
 		int viewport_width, int viewport_height)
 {
+	css_error css_code;
 	dom_document *document;
 	dom_exception exc;
 	dom_xml_parser *parser;
@@ -695,6 +698,17 @@ svgtiny_code svgtiny_parse(struct svgtiny_diagram *diagram,
 	state.viewport_width = viewport_width;
 	state.viewport_height = viewport_height;
 
+
+	/* Initialize CSS context */
+	if (state.select_ctx == NULL) {
+		css_code = css_select_ctx_create(&state.select_ctx);
+		if (css_code != CSS_OK) {
+			dom_node_unref(svg);
+			dom_node_unref(document);
+			return svgtiny_LIBCSS_ERROR;
+		}
+	}
+
 #define SVGTINY_STRING_ACTION2(s,n)					\
 	if (dom_string_create_interned((const uint8_t *) #n,		\
 				       strlen(#n), &state.interned_##s)	\
@@ -727,6 +741,10 @@ svgtiny_code svgtiny_parse(struct svgtiny_diagram *diagram,
 
 	dom_node_unref(svg);
 	dom_node_unref(document);
+	css_code = css_select_ctx_destroy(state.select_ctx);
+	if (css_code != CSS_OK) {
+		code = svgtiny_LIBCSS_ERROR;
+	}
 
 cleanup:
 	svgtiny_cleanup_state_local(&state);