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native: Replace 'headless' property with 'mode' property

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There will be another mode added later, 'test'; prepare for this by
changing the existing "mode" boolean ('headless') to a mode, which is
either 'default' or 'headless'. Checking the is_headless variable is
changed to using the function is_headless(), except for one place, being
VT switching, which in preparation is only allowed on the 'default'
mode. Other places where it makes sense, the conditions are changed to
switch statements.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2151>
This commit is contained in:
Jonas Ådahl 2021-05-17 19:13:40 +02:00 committed by Marge Bot
parent a2382f3251
commit 124a1582e1
4 changed files with 47 additions and 25 deletions
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6
src/backends/native/meta-backend-native-types.h
View File

@ -39,4 +39,10 @@ typedef enum _MetaSeatNativeFlag
META_SEAT_NATIVE_FLAG_NO_LIBINPUT = 1 << 0,
} MetaSeatNativeFlag;
typedef enum _MetaBackendNativeMode
{
META_BACKEND_NATIVE_MODE_DEFAULT = 0,
META_BACKEND_NATIVE_MODE_HEADLESS,
} MetaBackendNativeMode;
#endif /* META_BACKEND_NATIVE_TYPES_H */

54
src/backends/native/meta-backend-native.c
View File

@ -66,11 +66,13 @@
#include "backends/meta-screen-cast.h"
#endif
#include "meta-private-enum-types.h"
enum
{
PROP_0,
PROP_HEADLESS,
PROP_MODE,
N_PROPS
};
@ -86,7 +88,7 @@ struct _MetaBackendNative
MetaUdev *udev;
MetaKms *kms;
gboolean is_headless;
MetaBackendNativeMode mode;
};
static GInitableIface *initable_parent_iface;
@ -254,10 +256,12 @@ meta_backend_native_create_monitor_manager (MetaBackend *backend,
{
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaMonitorManager *manager;
gboolean needs_outputs;
needs_outputs = !(backend_native->mode & META_BACKEND_NATIVE_MODE_HEADLESS);
manager = g_initable_new (META_TYPE_MONITOR_MANAGER_NATIVE, NULL, error,
"backend", backend,
"needs-outputs", !backend_native->is_headless,
"needs-outputs", needs_outputs,
NULL);
if (!manager)
return NULL;
@ -372,16 +376,22 @@ meta_backend_native_lock_layout_group (MetaBackend *backend,
const char *
meta_backend_native_get_seat_id (MetaBackendNative *backend_native)
{
if (backend_native->is_headless)
return "seat0";
else
switch (backend_native->mode)
{
case META_BACKEND_NATIVE_MODE_DEFAULT:
return meta_launcher_get_seat_id (backend_native->launcher);
case META_BACKEND_NATIVE_MODE_HEADLESS:
return "seat0";
}
g_assert_not_reached ();
}
static gboolean
meta_backend_native_is_headless (MetaBackend *backend)
{
return META_BACKEND_NATIVE (backend)->is_headless;
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
return backend_native->mode == META_BACKEND_NATIVE_MODE_HEADLESS;
}
static void
@ -537,7 +547,7 @@ init_gpus (MetaBackendNative *native,
g_list_free_full (devices, g_object_unref);
if (!native->is_headless &&
if (!meta_backend_is_headless (backend) &&
g_list_length (meta_backend_get_gpus (backend)) == 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
@ -558,6 +568,7 @@ meta_backend_native_initable_init (GInitable *initable,
GError **error)
{
MetaBackendNative *native = META_BACKEND_NATIVE (initable);
MetaBackend *backend = META_BACKEND (native);
MetaKmsFlags kms_flags;
if (!meta_is_stage_views_enabled ())
@ -567,7 +578,7 @@ meta_backend_native_initable_init (GInitable *initable,
return FALSE;
}
if (!native->is_headless)
if (!meta_backend_is_headless (backend))
{
native->launcher = meta_launcher_new (error);
if (!native->launcher)
@ -578,7 +589,7 @@ meta_backend_native_initable_init (GInitable *initable,
native->udev = meta_udev_new (native);
kms_flags = META_KMS_FLAG_NONE;
if (native->is_headless)
if (meta_backend_is_headless (backend))
kms_flags |= META_KMS_FLAG_NO_MODE_SETTING;
native->kms = meta_kms_new (META_BACKEND (native), kms_flags, error);
@ -601,8 +612,8 @@ meta_backend_native_set_property (GObject *object,
switch (prop_id)
{
case PROP_HEADLESS:
backend_native->is_headless = g_value_get_boolean (value);
case PROP_MODE:
backend_native->mode = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -649,11 +660,12 @@ meta_backend_native_class_init (MetaBackendNativeClass *klass)
backend_class->is_headless = meta_backend_native_is_headless;
obj_props[PROP_HEADLESS] =
g_param_spec_boolean ("headless",
"headless",
"Headless",
FALSE,
obj_props[PROP_MODE] =
g_param_spec_enum ("mode",
"mode",
"mode",
META_TYPE_BACKEND_NATIVE_MODE,
META_BACKEND_NATIVE_MODE_DEFAULT,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
@ -696,14 +708,18 @@ meta_activate_vt (int vt, GError **error)
MetaBackendNative *native = META_BACKEND_NATIVE (backend);
MetaLauncher *launcher = meta_backend_native_get_launcher (native);
if (native->is_headless)
switch (native->mode)
{
case META_BACKEND_NATIVE_MODE_DEFAULT:
return meta_launcher_activate_vt (launcher, vt, error);
case META_BACKEND_NATIVE_MODE_HEADLESS:
case META_BACKEND_NATIVE_MODE_TEST:
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Can't switch VT while headless");
return FALSE;
}
return meta_launcher_activate_vt (launcher, vt, error);
g_assert_not_reached ();
}
void

2
src/core/meta-context-main.c
View File

@ -438,7 +438,7 @@ create_headless_backend (MetaContext *context,
return g_initable_new (META_TYPE_BACKEND_NATIVE,
NULL, error,
"context", context,
"headless", TRUE,
"mode", META_BACKEND_NATIVE_MODE_HEADLESS,
NULL);
}

2
src/tests/meta-context-test.c
View File

@ -159,7 +159,7 @@ create_headless_backend (MetaContext *context,
return g_initable_new (META_TYPE_BACKEND_NATIVE,
NULL, error,
"context", context,
"headless", TRUE,
"mode", META_BACKEND_NATIVE_MODE_HEADLESS,
NULL);
}
#endif /* HAVE_NATIVE_BACKEND */