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a8b013b006
This API aims to provide a way for users to capture input devices under certain conditions, for example when a pointer crosses a specified barrier. So far only part of the API is implemented, specifially the session management as well as zone advertisement, where a zone refers to a region in the compositor which edges will eventually be made available for barrier placement. So far the remote access handle is created while the session is enable, despite the input capturing isn't actually active yet. This will change in the future once it can actually become active. v2: Remove absolute/relative pointer, keep only pointer (ofourdan) Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2628>
501 lines
16 KiB
C
501 lines
16 KiB
C
/*
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* Copyright (C) 2022 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#include "config.h"
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#include "backends/meta-input-capture-session.h"
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#include <stdint.h>
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#include "backends/meta-dbus-session-watcher.h"
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#include "backends/meta-dbus-session-manager.h"
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#include "backends/meta-monitor-manager-private.h"
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#include "backends/meta-logical-monitor.h"
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#include "backends/meta-remote-access-controller-private.h"
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#include "meta/boxes.h"
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#include "meta/meta-backend.h"
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#include "meta-dbus-input-capture.h"
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#define META_INPUT_CAPTURE_SESSION_DBUS_PATH "/org/gnome/Mutter/InputCapture/Session"
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enum
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{
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PROP_0,
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N_PROPS
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};
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struct _MetaInputCaptureSession
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{
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MetaDBusInputCaptureSessionSkeleton parent;
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MetaDbusSessionManager *session_manager;
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GDBusConnection *connection;
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char *peer_name;
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char *session_id;
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char *object_path;
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gboolean enabled;
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uint32_t serial;
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MetaInputCaptureSessionHandle *handle;
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};
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static void initable_init_iface (GInitableIface *iface);
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static void meta_input_capture_session_init_iface (MetaDBusInputCaptureSessionIface *iface);
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static void meta_dbus_session_init_iface (MetaDbusSessionInterface *iface);
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static MetaInputCaptureSessionHandle * meta_input_capture_session_handle_new (MetaInputCaptureSession *session);
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G_DEFINE_TYPE_WITH_CODE (MetaInputCaptureSession,
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meta_input_capture_session,
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META_DBUS_TYPE_INPUT_CAPTURE_SESSION_SKELETON,
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G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
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initable_init_iface)
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G_IMPLEMENT_INTERFACE (META_DBUS_TYPE_INPUT_CAPTURE_SESSION,
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meta_input_capture_session_init_iface)
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G_IMPLEMENT_INTERFACE (META_TYPE_DBUS_SESSION,
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meta_dbus_session_init_iface))
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struct _MetaInputCaptureSessionHandle
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{
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MetaRemoteAccessHandle parent;
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MetaInputCaptureSession *session;
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};
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G_DEFINE_TYPE (MetaInputCaptureSessionHandle,
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meta_input_capture_session_handle,
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META_TYPE_REMOTE_ACCESS_HANDLE)
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static void
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init_remote_access_handle (MetaInputCaptureSession *session)
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{
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MetaBackend *backend =
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meta_dbus_session_manager_get_backend (session->session_manager);
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MetaRemoteAccessController *remote_access_controller;
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MetaRemoteAccessHandle *remote_access_handle;
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session->handle = meta_input_capture_session_handle_new (session);
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remote_access_controller = meta_backend_get_remote_access_controller (backend);
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remote_access_handle = META_REMOTE_ACCESS_HANDLE (session->handle);
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meta_remote_access_controller_notify_new_handle (remote_access_controller,
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remote_access_handle);
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}
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static gboolean
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meta_input_capture_session_enable (MetaInputCaptureSession *session,
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GError **error)
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{
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g_assert (!session->enabled);
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session->enabled = TRUE;
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init_remote_access_handle (session);
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return TRUE;
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}
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static void
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meta_input_capture_session_disable (MetaInputCaptureSession *session)
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{
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session->enabled = FALSE;
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if (session->handle)
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{
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MetaRemoteAccessHandle *remote_access_handle =
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META_REMOTE_ACCESS_HANDLE (session->handle);
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meta_remote_access_handle_notify_stopped (remote_access_handle);
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}
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}
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static void
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meta_input_capture_session_close (MetaDbusSession *dbus_session)
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{
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MetaInputCaptureSession *session =
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META_INPUT_CAPTURE_SESSION (dbus_session);
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MetaDBusInputCaptureSession *skeleton =
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META_DBUS_INPUT_CAPTURE_SESSION (session);
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if (session->enabled)
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meta_input_capture_session_disable (session);
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meta_dbus_session_notify_closed (META_DBUS_SESSION (session));
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meta_dbus_input_capture_session_emit_closed (skeleton);
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g_dbus_interface_skeleton_unexport (G_DBUS_INTERFACE_SKELETON (session));
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g_object_unref (session);
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}
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static gboolean
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check_permission (MetaInputCaptureSession *session,
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GDBusMethodInvocation *invocation)
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{
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return g_strcmp0 (session->peer_name,
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g_dbus_method_invocation_get_sender (invocation)) == 0;
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}
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static gboolean
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handle_add_barrier (MetaDBusInputCaptureSession *object,
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GDBusMethodInvocation *invocation,
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unsigned int serial,
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GVariant *position)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"Not implemented");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static gboolean
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handle_get_zones (MetaDBusInputCaptureSession *object,
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GDBusMethodInvocation *invocation)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (object);
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MetaBackend *backend =
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meta_dbus_session_manager_get_backend (session->session_manager);
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MetaMonitorManager *monitor_manager =
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meta_backend_get_monitor_manager (backend);
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GVariant *zones_variant;
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GVariantBuilder zones_builder;
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GList *logical_monitors;
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GList *l;
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g_variant_builder_init (&zones_builder, G_VARIANT_TYPE ("a(uuii)"));
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logical_monitors = meta_monitor_manager_get_logical_monitors (monitor_manager);
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for (l = logical_monitors; l; l = l->next)
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{
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MetaLogicalMonitor *logical_monitor = l->data;
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MetaRectangle layout;
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layout = meta_logical_monitor_get_layout (logical_monitor);
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g_variant_builder_add (&zones_builder, "(uuii)",
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layout.width,
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layout.height,
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layout.x,
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layout.y);
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}
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zones_variant = g_variant_builder_end (&zones_builder);
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meta_dbus_input_capture_session_complete_get_zones (object, invocation,
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session->serial,
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zones_variant);
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static gboolean
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handle_enable (MetaDBusInputCaptureSession *skeleton,
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GDBusMethodInvocation *invocation)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (skeleton);
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g_autoptr (GError) error = NULL;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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if (session->enabled)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"Already enabled");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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if (!meta_input_capture_session_enable (session, &error))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"Failed to enable input capture: %s",
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error->message);
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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meta_dbus_input_capture_session_complete_enable (skeleton, invocation);
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static gboolean
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handle_disable (MetaDBusInputCaptureSession *skeleton,
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GDBusMethodInvocation *invocation)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (skeleton);
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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if (!session->enabled)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"Session not enabled");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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meta_input_capture_session_disable (session);
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meta_dbus_input_capture_session_complete_disable (skeleton, invocation);
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static gboolean
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handle_release (MetaDBusInputCaptureSession *object,
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GDBusMethodInvocation *invocation,
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GVariant *position)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Not implemented");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static gboolean
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handle_close (MetaDBusInputCaptureSession *object,
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GDBusMethodInvocation *invocation)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (object);
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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meta_dbus_session_close (META_DBUS_SESSION (session));
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meta_dbus_input_capture_session_complete_close (object, invocation);
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return G_DBUS_METHOD_INVOCATION_HANDLED;
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}
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static void
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on_monitors_changed (MetaMonitorManager *monitor_manager,
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MetaInputCaptureSession *session)
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{
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MetaDBusInputCaptureSession *skeleton =
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META_DBUS_INPUT_CAPTURE_SESSION (session);
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session->serial++;
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meta_input_capture_session_disable (session);
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meta_dbus_input_capture_session_emit_zones_changed (skeleton);
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}
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static gboolean
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meta_input_capture_session_initable_init (GInitable *initable,
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GCancellable *cancellable,
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GError **error)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (initable);
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GDBusInterfaceSkeleton *interface_skeleton = G_DBUS_INTERFACE_SKELETON (session);
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MetaBackend *backend =
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meta_dbus_session_manager_get_backend (session->session_manager);
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MetaMonitorManager *monitor_manager =
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meta_backend_get_monitor_manager (backend);
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session->connection =
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meta_dbus_session_manager_get_connection (session->session_manager);
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if (!g_dbus_interface_skeleton_export (interface_skeleton,
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session->connection,
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session->object_path,
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error))
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return FALSE;
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g_signal_connect_object (monitor_manager, "monitors-changed",
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G_CALLBACK (on_monitors_changed),
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session, 0);
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return TRUE;
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}
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static void
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initable_init_iface (GInitableIface *iface)
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{
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iface->init = meta_input_capture_session_initable_init;
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}
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static void
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meta_input_capture_session_init_iface (MetaDBusInputCaptureSessionIface *iface)
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{
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iface->handle_add_barrier = handle_add_barrier;
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iface->handle_enable = handle_enable;
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iface->handle_disable = handle_disable;
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iface->handle_release = handle_release;
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iface->handle_close = handle_close;
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iface->handle_get_zones = handle_get_zones;
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}
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static void
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meta_dbus_session_init_iface (MetaDbusSessionInterface *iface)
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{
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iface->close = meta_input_capture_session_close;
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}
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static void
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meta_input_capture_session_finalize (GObject *object)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (object);
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g_clear_object (&session->handle);
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g_free (session->peer_name);
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g_free (session->session_id);
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g_free (session->object_path);
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G_OBJECT_CLASS (meta_input_capture_session_parent_class)->finalize (object);
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}
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static void
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meta_input_capture_session_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (object);
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switch (prop_id)
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{
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case N_PROPS + META_DBUS_SESSION_PROP_SESSION_MANAGER:
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session->session_manager = g_value_get_object (value);
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break;
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case N_PROPS + META_DBUS_SESSION_PROP_PEER_NAME:
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session->peer_name = g_value_dup_string (value);
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break;
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case N_PROPS + META_DBUS_SESSION_PROP_ID:
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session->session_id = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_input_capture_session_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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MetaInputCaptureSession *session = META_INPUT_CAPTURE_SESSION (object);
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switch (prop_id)
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{
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case N_PROPS + META_DBUS_SESSION_PROP_SESSION_MANAGER:
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g_value_set_object (value, session->session_manager);
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break;
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case N_PROPS + META_DBUS_SESSION_PROP_PEER_NAME:
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g_value_set_string (value, session->peer_name);
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break;
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case N_PROPS + META_DBUS_SESSION_PROP_ID:
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g_value_set_string (value, session->session_id);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_input_capture_session_class_init (MetaInputCaptureSessionClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = meta_input_capture_session_finalize;
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object_class->set_property = meta_input_capture_session_set_property;
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object_class->get_property = meta_input_capture_session_get_property;
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meta_dbus_session_install_properties (object_class, N_PROPS);
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}
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static void
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meta_input_capture_session_init (MetaInputCaptureSession *session)
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{
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static unsigned int global_session_number = 0;
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session->object_path =
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g_strdup_printf (META_INPUT_CAPTURE_SESSION_DBUS_PATH "/u%u",
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++global_session_number);
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}
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char *
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meta_input_capture_session_get_object_path (MetaInputCaptureSession *session)
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{
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return session->object_path;
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}
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static MetaInputCaptureSessionHandle *
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meta_input_capture_session_handle_new (MetaInputCaptureSession *session)
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{
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MetaInputCaptureSessionHandle *handle;
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handle = g_object_new (META_TYPE_INPUT_CAPTURE_SESSION_HANDLE, NULL);
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handle->session = session;
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return handle;
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}
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static void
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meta_input_capture_session_handle_stop (MetaRemoteAccessHandle *handle)
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{
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MetaInputCaptureSession *session;
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session = META_INPUT_CAPTURE_SESSION_HANDLE (handle)->session;
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if (!session)
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return;
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meta_dbus_session_close (META_DBUS_SESSION (session));
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}
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static void
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meta_input_capture_session_handle_class_init (MetaInputCaptureSessionHandleClass *klass)
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{
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MetaRemoteAccessHandleClass *remote_access_handle_class =
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META_REMOTE_ACCESS_HANDLE_CLASS (klass);
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remote_access_handle_class->stop = meta_input_capture_session_handle_stop;
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}
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static void
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meta_input_capture_session_handle_init (MetaInputCaptureSessionHandle *handle)
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{
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}
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