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a11y: Only spew help once

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Make GTK_A11Y=help only spew once, and avoid a warning
when we do.
This commit is contained in:
Matthias Clasen 2021-01-05 11:15:33 -05:00
parent d1fcfa58b9
commit 56af472cfc
1 changed files with 15 additions and 13 deletions
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28
gtk/gtkatcontext.c
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@ -541,25 +541,27 @@ gtk_at_context_create (GtkAccessibleRole accessible_role,
gtk_a11y_env = g_getenv ("GTK_A11Y");
if (gtk_a11y_env == NULL)
gtk_a11y_env = "0";
if (g_ascii_strcasecmp (gtk_a11y_env, "help") == 0)
{
g_print ("Supported arguments for GTK_A11Y environment variable:\n");
#if defined(GDK_WINDOWING_X11) || defined(GDK_WINDOWING_WAYLAND)
g_print (" atspi - Use the AT-SPI accessibility backend\n");
#endif
g_print (" test - Use the test accessibility backend\n");
g_print (" none - Disable the accessibility backend\n");
g_print (" help - Print this help\n\n");
g_print ("Other arguments will cause a warning and be ignored.\n");
gtk_a11y_env = "0";
}
}
/* Short-circuit disabling the accessibility support */
if (g_ascii_strcasecmp (gtk_a11y_env, "none") == 0)
return NULL;
if (g_ascii_strcasecmp (gtk_a11y_env, "help") == 0)
{
g_print ("Supported arguments for GTK_A11Y environment variable:\n");
#if defined(GDK_WINDOWING_X11) || defined(GDK_WINDOWING_WAYLAND)
g_print (" atspi - Use the AT-SPI accessibility backend\n");
#endif
g_print (" test - Use the test accessibility backend\n");
g_print (" none - Disable the accessibility backend\n");
g_print (" help - Print this help\n\n");
g_print ("Other arguments will cause a warning and be ignored.\n");
}
GtkATContext *res = NULL;
for (guint i = 0; i < G_N_ELEMENTS (a11y_backends); i++)