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util: Guard against older zenity versions

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Plenty of ugly here, but it works; revert when the zenity version
we depend on stops being bleeding-edge (or we can assume a zenity
version that does not error out on unknown options).

https://bugzilla.gnome.org/show_bug.cgi?id=684306
This commit is contained in:
Florian Müllner 2012-09-19 14:29:06 +02:00
parent ae1be578ba
commit 5eb72743dd
1 changed files with 26 additions and 3 deletions
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23
src/core/util.c
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@ -555,6 +555,23 @@ meta_gravity_to_string (int gravity)
}
}
static gboolean
zenity_supports_option (const char *section, const char *option)
{
char *command, *out;
gboolean rv;
command = g_strdup_printf ("zenity %s", section);
g_spawn_command_line_sync (command, &out, NULL, NULL, NULL);
rv = (out && strstr (out, option));
g_free (command);
g_free (out);
return rv;
}
/* Command line arguments are passed in the locale encoding; in almost
* all cases, we'd hope that is UTF-8 and no conversion is necessary.
* If it's not UTF-8, then it's possible that the message isn't
@ -627,10 +644,15 @@ meta_show_dialog (const char *type,
}
if (icon_name)
{
char *option = g_strdup_printf ("--help%s", type + 1);
if (zenity_supports_option (option, "--icon-name"))
{
append_argument (args, "--icon-name");
append_argument (args, icon_name);
}
g_free (option);
}
tmp = columns;
while (tmp)
@ -653,6 +675,7 @@ meta_show_dialog (const char *type,
setenv ("WINDOWID", env, 1);
g_free (env);
if (zenity_supports_option ("--help-general", "--modal"))
append_argument (args, "--modal");
}