mutter/src/backends/meta-input-device.c

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/*
* Copyright © 2020 Red Hat Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Carlos Garnacho <carlosg@gnome.org>
*/
#include "config.h"
#include "backends/meta-backend-private.h"
#include "backends/meta-input-device-private.h"
typedef struct _MetaInputDevicePrivate MetaInputDevicePrivate;
struct _MetaInputDevicePrivate
{
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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MetaBackend *backend;
#ifdef HAVE_LIBWACOM
WacomDevice *wacom_device;
#else
/* Just something to have non-zero sized struct otherwise */
gpointer wacom_device;
#endif
};
enum
{
PROP_0,
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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PROP_BACKEND,
PROP_WACOM_DEVICE,
N_PROPS
};
static GParamSpec *props[N_PROPS] = { 0 };
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaInputDevice,
meta_input_device,
CLUTTER_TYPE_INPUT_DEVICE)
static void
meta_input_device_init (MetaInputDevice *input_device)
{
}
static void
meta_input_device_constructed (GObject *object)
{
#ifdef HAVE_LIBWACOM
MetaInputDevice *input_device;
WacomDeviceDatabase *wacom_db;
MetaInputDevicePrivate *priv;
const char *node;
#endif
G_OBJECT_CLASS (meta_input_device_parent_class)->constructed (object);
#ifdef HAVE_LIBWACOM
input_device = META_INPUT_DEVICE (object);
priv = meta_input_device_get_instance_private (input_device);
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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wacom_db = meta_backend_get_wacom_database (priv->backend);
node = clutter_input_device_get_device_node (CLUTTER_INPUT_DEVICE (input_device));
priv->wacom_device = libwacom_new_from_path (wacom_db, node,
WFALLBACK_NONE, NULL);
#endif /* HAVE_LIBWACOM */
}
static void
meta_input_device_finalize (GObject *object)
{
#ifdef HAVE_LIBWACOM
MetaInputDevicePrivate *priv;
priv = meta_input_device_get_instance_private (META_INPUT_DEVICE (object));
g_clear_pointer (&priv->wacom_device, libwacom_destroy);
#endif /* HAVE_LIBWACOM */
G_OBJECT_CLASS (meta_input_device_parent_class)->finalize (object);
}
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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static void
meta_input_device_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaInputDevicePrivate *priv;
priv = meta_input_device_get_instance_private (META_INPUT_DEVICE (object));
switch (prop_id)
{
case PROP_BACKEND:
priv->backend = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_input_device_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaInputDevicePrivate *priv;
priv = meta_input_device_get_instance_private (META_INPUT_DEVICE (object));
switch (prop_id)
{
case PROP_WACOM_DEVICE:
g_value_set_pointer (value, priv->wacom_device);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_input_device_class_init (MetaInputDeviceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = meta_input_device_constructed;
object_class->finalize = meta_input_device_finalize;
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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object_class->set_property = meta_input_device_set_property;
object_class->get_property = meta_input_device_get_property;
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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props[PROP_BACKEND] =
g_param_spec_object ("backend", NULL, NULL,
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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META_TYPE_BACKEND,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
props[PROP_WACOM_DEVICE] =
g_param_spec_pointer ("wacom-device", NULL, NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, N_PROPS, props);
}
#ifdef HAVE_LIBWACOM
WacomDevice *
meta_input_device_get_wacom_device (MetaInputDevice *input_device)
{
MetaInputDevicePrivate *priv;
priv = meta_input_device_get_instance_private (input_device);
return priv->wacom_device;
}
#endif /* HAVE_LIBWACOM */
backend: Set up and use ownership chains This means objects have an owner, where the chain eventually always leads to a MetaContext. This also means that all objects can find their way to other object instances via the chain, instead of scattered global singletons. This is a squashed commit originally containing the following: cursor-tracker: Don't get backend from singleton idle-manager: Don't get backend from singleton input-device: Pass pointer to backend during construction The backend is needed during construction to get the wacom database. input-mapper: Pass backend when constructing monitor: Don't get backend from singleton monitor-manager: Get backend directly from monitor manager remote: Get backend from manager class For the remote desktop and screen cast implementations, replace getting the backend from singletons with getting it via the manager classes. launcher: Pass backend during construction device-pool: Pass backend during construction Instead of passing the (maybe null) launcher, pass the backend, and get the launcher from there. That way we always have a way to some known context from the device pool. drm-buffer/gbm: Get backend via device pool cursor-renderer: Get backend directly from renderer input-device: Get backend getter input-settings: Add backend construct property and getter input-settings/x11: Don't get backend from singleton renderer: Get backend from renderer itself seat-impl: Add backend getter seat/native: Get backend from instance struct stage-impl: Get backend from stage impl itself x11/xkb-a11y: Don't get backend from singleton backend/x11/nested: Don't get Wayland compositor from singleton crtc: Add backend property Adding a link to the GPU isn't enough; the virtual CRTCs of virtual monitors doesn't have one. cursor-tracker: Don't get display from singleton remote: Don't get display from singleton seat: Don't get display from singleton backend/x11: Don't get display from singleton Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
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MetaBackend *
meta_input_device_get_backend (MetaInputDevice *input_device)
{
MetaInputDevicePrivate *priv =
meta_input_device_get_instance_private (input_device);
return priv->backend;
}