Note, our "mailto-handler" module will need to be updated to support the new scheme.  It nags you about making Evolution your default email client when the app starts up.

http://git.gnome.org/browse/evolution/tree/modules/mailto-handler/evolution-mailto-handler.c

Created attachment 172843 [details] [review]
evo patch

for evolution;

I cannot test it with the control-center, but if I didn't do a typo then this should make it work, right?

Note I removed the %s from the MAILTO_COMMAND, because using G_APP_INFO_CREATE_SUPPORTS_URIS adds a %u to the command line on its own.

Created commit 61999b4 in evo master (2.91.2+)

Review of attachment 172843 [details] [review]:

::: modules/mailto-handler/evolution-mailto-handler.c
@@ +212,2 @@
 	/* Configure Evolution to be the "mailto" URI handler. */
+	app_info = g_app_info_create_from_commandline (

Why do that when you can get the .desktop file for it instead?

(In reply to comment #4)
> Review of attachment 172843 [details] [review]:
> 
> ::: modules/mailto-handler/evolution-mailto-handler.c
> @@ +212,2 @@
>      /* Configure Evolution to be the "mailto" URI handler. */
> +    app_info = g_app_info_create_from_commandline (
> 
> Why do that when you can get the .desktop file for it instead?

I didn't know how, so I chose this approach. And it was also closer to the previous solution.