Make symbolic icons work with the current rsvg

The rsvg loader now restricts what external files it will
allow to load from an svg. Thus our xinclude trick doesn't work
anymore. To work around that, embed the payload in a  data: uri.
This is somewhat ugly, but the best we could come up with.

diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 5d85fe92f5fc9e131feb21e5149a90350eeac737..7b9faf10b7752b7bdbabd66e8494896ef381deb3 100644 (file)
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -4128,7 +4128,9 @@ _gtk_icon_info_load_symbolic_internal (GtkIconInfo  *icon_info,
   gchar *css_warning;
   gchar *css_error;
   gchar *data;
-  gchar *width, *height, *uri;
+  gchar *width, *height;
+  gchar *file_data, *escaped_file_data;
+  gsize file_len;
   SymbolicPixbufCache *symbolic_cache;
 
   if (use_cache)
@@ -4172,14 +4174,13 @@ _gtk_icon_info_load_symbolic_internal (GtkIconInfo  *icon_info,
       css_error = gdk_color_to_css (&error_default_color);
     }
 
+  if (!g_file_get_contents (icon_info->filename, &file_data, &file_len, NULL))
+    return NULL;
+
   if (!icon_info->symbolic_pixbuf_size)
     {
-      stream = G_INPUT_STREAM (g_file_read (icon_info->icon_file, NULL, error));
-
-      if (!stream)
-        return NULL;
-
       /* Fetch size from the original icon */
+      stream = g_memory_input_stream_new_from_data (file_data, file_len, NULL);
       pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
       g_object_unref (stream);
 
@@ -4194,7 +4195,9 @@ _gtk_icon_info_load_symbolic_internal (GtkIconInfo  *icon_info,
 
   width = g_strdup_printf ("%d", icon_info->symbolic_pixbuf_size->width);
   height = g_strdup_printf ("%d", icon_info->symbolic_pixbuf_size->height);
-  uri = g_file_get_uri (icon_info->icon_file);
+
+  escaped_file_data = g_markup_escape_text (file_data, file_len);
+  g_free (file_data);
 
   data = g_strconcat ("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"
                       "<svg version=\"1.1\"\n"
@@ -4216,16 +4219,16 @@ _gtk_icon_info_load_symbolic_internal (GtkIconInfo  *icon_info,
                       "      fill: ", css_success, " !important;\n"
                       "    }\n"
                       "  </style>\n"
-                      "  <xi:include href=\"", uri, "\"/>\n"
+                      "  <xi:include href=\"data:text/xml,", escaped_file_data, "\"/>\n"
                       "</svg>",
                       NULL);
+  g_free (escaped_file_data);
   g_free (css_fg);
   g_free (css_warning);
   g_free (css_error);
   g_free (css_success);
   g_free (width);
   g_free (height);
-  g_free (uri);
 
   stream = g_memory_input_stream_new_from_data (data, -1, g_free);
   pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream,