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settings: Allow overriding experimental settings with an env var

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This makes it simpler to experiment with experimental settings without
having to make changes to any gsettings fields one might not want to
change.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567>
This commit is contained in:
Jonas Ådahl 2024-08-19 17:26:24 +02:00 • committed by Marge Bot
parent 6e8c7c5f84
commit 36eee131c2
1 changed files with 25 additions and 0 deletions
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25
src/backends/meta-settings.c
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@ -43,6 +43,14 @@ enum
N_SIGNALS
};
static GDebugKey experimental_feature_keys[] = {
{ "scale-monitor-framebuffer", META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER },
{ "kms-modifiers", META_EXPERIMENTAL_FEATURE_KMS_MODIFIERS },
{ "autoclose-xwayland", META_EXPERIMENTAL_FEATURE_AUTOCLOSE_XWAYLAND },
{ "variable-refresh-rate", META_EXPERIMENTAL_FEATURE_VARIABLE_REFRESH_RATE },
{ "xwayland-native-scaling", META_EXPERIMENTAL_FEATURE_XWAYLAND_NATIVE_SCALING },
};
static guint signals[N_SIGNALS];
struct _MetaSettings
@ -544,6 +552,8 @@ meta_settings_dispose (GObject *object)
static void
meta_settings_init (MetaSettings *settings)
{
const char *experimental_features_env;
settings->interface_settings = g_settings_new ("org.gnome.desktop.interface");
g_signal_connect (settings->interface_settings, "changed",
G_CALLBACK (interface_settings_changed),
@ -567,6 +577,21 @@ meta_settings_init (MetaSettings *settings)
g_signal_connect (settings, "ui-scaling-factor-changed",
G_CALLBACK (meta_settings_update_font_dpi), NULL);
experimental_features_env = getenv ("MUTTER_DEBUG_EXPERIMENTAL_FEATURES");
if (experimental_features_env)
{
MetaExperimentalFeature experimental_features;
experimental_features =
g_parse_debug_string (experimental_features_env,
experimental_feature_keys,
G_N_ELEMENTS (experimental_feature_keys));
meta_settings_override_experimental_features (settings);
meta_settings_enable_experimental_feature (settings,
experimental_features);
}
update_global_scaling_factor (settings);
update_experimental_features (settings);
update_xwayland_grab_access_rules (settings);