src/svgtiny.c: parse inline stylesheet in svgtiny_parse_paint_attributes()

...and do nothing with it, for the moment. We are able to parse the
inline style="..." attributes right now but more scaffolding is needed
before we can utilize css_select_style().

diff --git a/src/svgtiny.c b/src/svgtiny.c
index db0d59b02cd72209a51f409d7f62aef338bb64e3..d16a761300ad7b0657eb7b59478a085af06b1cae 100644 (file)
--- a/src/svgtiny.c
+++ b/src/svgtiny.c
@@ -2055,6 +2055,13 @@ void svgtiny_parse_paint_attributes(dom_element *node,
        dom_string *attr;
        dom_exception exc;
 
+       /* We store the result of svgtiny_parse_style_inline() in
+        * inline_sheet, and that function returns NULL on error; in
+        * particular you do not need to css_stylesheet_destroy() the
+        * result if it is NULL. We initialize inline_sheet to NULL to
+        * retain the same semantics. */
+       css_stylesheet *inline_sheet = NULL;
+
        exc = dom_element_get_attribute(node, state->interned_fill, &attr);
        if (exc == DOM_NO_ERR && attr != NULL) {
                svgtiny_parse_color(attr, &state->fill, &state->fill_grad, state);
@@ -2076,6 +2083,14 @@ void svgtiny_parse_paint_attributes(dom_element *node,
 
        exc = dom_element_get_attribute(node, state->interned_style, &attr);
        if (exc == DOM_NO_ERR && attr != NULL) {
+               /* First parse the style attribute into a libcss stylesheet
+                  in case any of its properties are known to libcss. */
+               inline_sheet = svgtiny_parse_style_inline(
+                                       (uint8_t *)dom_string_data(attr),
+                                       dom_string_byte_length(attr));
+
+               /* Parse any other properties "by hand" until they can
+                  be supported in libcss. */
                char *style = strndup(dom_string_data(attr),
                                      dom_string_byte_length(attr));
                const char *s;
@@ -2108,6 +2123,10 @@ void svgtiny_parse_paint_attributes(dom_element *node,
                free(style);
                dom_string_unref(attr);
        }
+
+       if (inline_sheet != NULL) {
+               css_stylesheet_destroy(inline_sheet);
+       }
 }