New function to create a content type from a mime type. (#527175, Milan

2008-05-17  Matthias Clasen  <mclasen@redhat.com>

        * gcontenttype.h:
        * gcontenttype.c: (g_content_type_from_mime_type):
        New function to create a content type from a mime type. (#527175,
        Milan Crha)


svn path=/trunk/; revision=6906

docs/reference/ChangeLog

@@ -1,3 +1,7 @@
+2008-05-17  Matthias Clasen  <mclasen@redhat.com>
+
+	* gio/gio-sections.txt: Add new api
+
 2008-05-17  Matthias Clasen  <mclasen@redhat.com>
 
 	Bug 528648 – Extra >s in Object Construction section...

docs/reference/gio/gio-sections.txt

@@ -990,6 +990,7 @@ g_content_type_get_description
 g_content_type_get_mime_type
 g_content_type_get_icon
 g_content_type_can_be_executable
+g_content_type_from_mime_type
 g_content_type_guess
 g_content_types_get_registered
 </SECTION>

gio/gcontenttype.c

@@ -221,6 +221,20 @@ looks_like_text (const guchar *data,
   return TRUE;
 }
 
+char *
+g_content_type_from_mime_type (const char *mime_type)
+{
+  char *key, *content_type;
+
+  g_return_val_if_fail (mime_type != NULL, NULL);
+
+  key = g_strconcat ("MIME\\DataBase\\Content Type\\", mime_type, NULL);
+  content_type = get_registry_classes_key (key, L"Extension");
+  g_free (key);
+
+  return content_type;
+}
+
 char *
 g_content_type_guess (const char   *filename,
 		      const guchar *data,
@@ -718,6 +732,25 @@ looks_like_text (const guchar *data, gsize data_size)
   return TRUE;
 }
 
+/**
+ * g_content_type_from_mime_type:
+ * @mime_type: a mime type string.
+ *
+ * Tries to find a content type based on the mime type name.
+ *
+ * Returns: Newly allocated string with content type or NULL when does not know.
+ *
+ * Since: 2.18
+ **/
+char *
+g_content_type_from_mime_type (const char *mime_type)
+{
+  g_return_val_if_fail (mime_type != NULL, NULL);
+
+  /* mime type and content type are same on unixes */
+  return g_strdup (mime_type);
+}
+
 /**
  * g_content_type_guess:
  * @filename: a string.

gio/gcontenttype.h

@@ -42,6 +42,8 @@ char *   g_content_type_get_mime_type     (const char   *type);
 GIcon *  g_content_type_get_icon          (const char   *type);
 gboolean g_content_type_can_be_executable (const char   *type);
 
+char *   g_content_type_from_mime_type    (const char   *mime_type);
+
 char *   g_content_type_guess             (const char   *filename,
 					   const guchar *data,
 					   gsize         data_size,

gio/gio.symbols

@@ -140,6 +140,7 @@ g_content_type_get_description
 g_content_type_get_mime_type
 g_content_type_get_icon
 g_content_type_can_be_executable
+g_content_type_from_mime_type
 g_content_type_guess
 g_content_types_get_registered
 #endif