Proof of concept

Unable to build a GObject by reading config file.

diff --git a/test/Makefile.am b/test/Makefile.am
index 65e192b06c755c33dab1e9bb611ac7ca3f21ed40..07c6e341b3552b5f0db6bf2192e58c655084919b 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -6,7 +6,7 @@ endif
 
 TESTS = check_degrees_conversions.sh
 
-check_PROGRAMS = degrees_converter gpx2gpx
+check_PROGRAMS = degrees_converter gpx2gpx gobject_builder
 
 check_SCRIPTS = check_degrees_conversions.sh
 
@@ -21,3 +21,8 @@ gpx2gpx_SOURCES = gpx2gpx.c
 gpx2gpx_LDADD = \
   $(top_builddir)/src/libviking.a \
   $(LDADD)
+
+gobject_builder_SOURCES = gobject_builder.c
+gobject_builder_LDADD = \
+  $(top_builddir)/src/libviking.a \
+  $(LDADD)

diff --git a/test/gobject_builder.c b/test/gobject_builder.c
new file mode 100644 (file)
index 0000000..20725f6
--- /dev/null
+++ b/test/gobject_builder.c
@@ -0,0 +1,115 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <glib.h>
+#include <glib-object.h>
+
+#include "vikwebtoolcenter.h"
+
+static gchar *class_name = NULL;
+GType gtype = 0;
+GParameter *parameters = NULL;
+gint nb_parameters = 0;
+
+/* Called for open tags <foo bar="baz"> */
+static void
+_start_element (GMarkupParseContext *context,
+                const gchar         *element_name,
+                const gchar        **attribute_names,
+                const gchar        **attribute_values,
+                gpointer             user_data,
+                GError             **error)
+{
+       g_debug(__FUNCTION__);
+       if (strcmp(element_name, "object") == 0)
+       {
+               class_name = g_strdup(attribute_values[0]);
+               gtype = g_type_from_name (class_name);
+               g_debug ("%s -> %d", class_name, gtype);
+       }
+       if (strcmp(element_name, "property") == 0)
+       {
+               if (attribute_values[0] && attribute_values[1])
+               {
+g_debug("%s=%s", attribute_values[0], attribute_values[1]);
+                       nb_parameters++;
+                       parameters = g_realloc(parameters, sizeof(GParameter)*nb_parameters);
+                       parameters[nb_parameters-1].name = g_strdup(attribute_values[0]);
+                       memset (&(parameters[nb_parameters-1].value), 0, sizeof(GValue));
+                       g_value_init (&(parameters[nb_parameters-1].value), G_TYPE_STRING);
+                       //g_value_reset (&(parameters[nb_parameters-1].value));
+                       g_value_set_string (&(parameters[nb_parameters-1].value), attribute_values[1]);
+               }
+       }
+}
+
+/* Called for close tags </foo> */
+static void
+_end_element (GMarkupParseContext *context,
+              const gchar         *element_name,
+              gpointer             user_data,
+              GError             **error)
+{
+       g_debug(__FUNCTION__);
+       gpointer object = NULL;
+       if (strcmp(element_name, "object") == 0 && gtype != 0)
+       {
+               object = g_object_newv(gtype, nb_parameters, parameters);
+               g_free (parameters);
+               parameters = NULL;
+               nb_parameters = 0;
+       }
+}
+
+/* Called for character data */
+/* text is not nul-terminated */
+static void
+_text (GMarkupParseContext *context,
+       const gchar         *text,
+       gsize                text_len,  
+       gpointer             user_data,
+       GError             **error)
+{
+       g_debug(__FUNCTION__);
+}
+
+int parse(gchar *text)
+{
+
+GMarkupParser xml_parser;
+GMarkupParseContext *xml_context;
+GError *error;
+
+/* setup context parse (ie callbacks) */
+xml_parser.start_element = &_start_element;
+xml_parser.end_element = &_end_element;
+xml_parser.text = &_text;
+xml_parser.passthrough = NULL;
+xml_parser.error = NULL;
+
+xml_context = g_markup_parse_context_new(&xml_parser, 0, NULL, NULL);
+
+  
+if (!g_markup_parse_context_parse(xml_context, text, strlen(text), &error))
+    printf("read_xml() : parsing error.\n");
+/* cleanup */
+if (!g_markup_parse_context_end_parse(xml_context, &error))
+  printf("read_xml() : errors occurred reading file.\n");
+
+g_markup_parse_context_free(xml_context);
+
+  return EXIT_SUCCESS;
+}
+
+int main(int argc, char *argv[])
+{
+  g_type_init ();
+
+  VIK_WEBTOOL_CENTER_TYPE;
+
+  parse ("<objects><object class=\"toto\"><property name=\"titi\" value=\"tutu\"/></object></objects>");
+  parse ("<objects><object class=\"GObject\"><property name=\"titi\" value=\"tutu\"/></object></objects>");
+  parse ("<objects><object class=\"VikWebtoolCenter\"><property name=\"label\" value=\"tutu\"/><property name=\"url\" value=\"tutu\"/></object></objects>");
+
+  return EXIT_SUCCESS;
+}