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Make theme fallback working with the new names

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Since we are likely going to see theme names like
Adwaita and HighContrast, make fallback work as follows:

Adwaita -> Default
Adwaita:dark -> Default:dark
HighContrast -> Default:hc
HighContrast:dark -> Default:hc-dark
HighContrastInverse -> Default:hc-dark

Other themes will fall back to Default, as before.
This commit is contained in:
Matthias Clasen 2021-04-01 22:02:38 -04:00
parent 0bf3e4c25b
commit fd329e0ec5
1 changed files with 10 additions and 6 deletions
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16
gtk/gtkcssprovider.c
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@ -1385,16 +1385,20 @@ gtk_css_provider_load_named (GtkCssProvider *provider,
else
{
/* Things failed! Fall back! Fall back! */
if (variant)
if (strcmp (name, "HighContrast") == 0)
{
/* If there was a variant, try without */
gtk_css_provider_load_named (provider, name, NULL);
if (g_strcmp0 (variant, "dark") == 0)
gtk_css_provider_load_named (provider, DEFAULT_THEME_NAME, "hc-dark");
else
gtk_css_provider_load_named (provider, DEFAULT_THEME_NAME, "hc");
}
else if (strcmp (name, "HighConstrastInverse") == 0)
gtk_css_provider_load_named (provider, DEFAULT_THEME_NAME, "hc-dark");
else if (strcmp (name, DEFAULT_THEME_NAME) != 0)
gtk_css_provider_load_named (provider, DEFAULT_THEME_NAME, variant);
else
{
/* Worst case, fall back to the default */
g_return_if_fail (!g_str_equal (name, DEFAULT_THEME_NAME)); /* infloop protection */
g_return_if_fail (variant != NULL);
gtk_css_provider_load_named (provider, DEFAULT_THEME_NAME, NULL);
}
}