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remote-desktop-session: Create virtual input devices on demand

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This avoids triggering heuristics based on available input device types;
e.g. hiding the cursor when connecting a touchscreen.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1800>
This commit is contained in:
Jonas Ådahl 2021-03-24 08:35:07 +01:00 committed by Marge Bot
parent a450486422
commit a0af52caf0
1 changed files with 103 additions and 17 deletions
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108
src/backends/meta-remote-desktop-session.c
View File

@ -69,6 +69,8 @@ struct _MetaRemoteDesktopSession
{
MetaDBusRemoteDesktopSessionSkeleton parent;
MetaRemoteDesktop *remote_desktop;
GDBusConnection *connection;
char *peer_name;
@ -125,7 +127,7 @@ meta_remote_desktop_session_handle_new (MetaRemoteDesktopSession *session);
static gboolean
meta_remote_desktop_session_is_running (MetaRemoteDesktopSession *session)
{
return !!session->virtual_pointer;
return !!session->started;
}
static void
@ -143,13 +145,38 @@ init_remote_access_handle (MetaRemoteDesktopSession *session)
remote_access_handle);
}
static void
ensure_virtual_device (MetaRemoteDesktopSession *session,
ClutterInputDeviceType device_type)
{
MetaRemoteDesktop *remote_desktop = session->remote_desktop;
MetaBackend *backend = meta_remote_desktop_get_backend (remote_desktop);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
ClutterSeat *seat = clutter_backend_get_default_seat (clutter_backend);
switch (device_type)
{
case CLUTTER_POINTER_DEVICE:
session->virtual_pointer =
clutter_seat_create_virtual_device (seat, CLUTTER_POINTER_DEVICE);
break;
case CLUTTER_KEYBOARD_DEVICE:
session->virtual_keyboard =
clutter_seat_create_virtual_device (seat, CLUTTER_KEYBOARD_DEVICE);
break;
case CLUTTER_TOUCHSCREEN_DEVICE:
session->virtual_touchscreen =
clutter_seat_create_virtual_device (seat, CLUTTER_TOUCHSCREEN_DEVICE);
break;
default:
g_assert_not_reached ();
}
}
static gboolean
meta_remote_desktop_session_start (MetaRemoteDesktopSession *session,
GError **error)
{
ClutterBackend *backend = clutter_get_default_backend ();
ClutterSeat *seat = clutter_backend_get_default_seat (backend);
g_assert (!session->started);
if (session->screen_cast_session)
@ -158,13 +185,6 @@ meta_remote_desktop_session_start (MetaRemoteDesktopSession *session,
return FALSE;
}
session->virtual_pointer =
clutter_seat_create_virtual_device (seat, CLUTTER_POINTER_DEVICE);
session->virtual_keyboard =
clutter_seat_create_virtual_device (seat, CLUTTER_KEYBOARD_DEVICE);
session->virtual_touchscreen =
clutter_seat_create_virtual_device (seat, CLUTTER_TOUCHSCREEN_DEVICE);
init_remote_access_handle (session);
session->started = TRUE;
@ -262,6 +282,7 @@ meta_remote_desktop_session_new (MetaRemoteDesktop *remote_desktop,
session = g_object_new (META_TYPE_REMOTE_DESKTOP_SESSION, NULL);
session->remote_desktop = remote_desktop;
session->peer_name = g_strdup (peer_name);
interface_skeleton = G_DBUS_INTERFACE_SKELETON (session);
@ -399,9 +420,22 @@ handle_notify_keyboard_keycode (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
if (pressed)
{
ensure_virtual_device (session, CLUTTER_KEYBOARD_DEVICE);
state = CLUTTER_KEY_STATE_PRESSED;
}
else
{
if (!session->virtual_keyboard)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Invalid key event");
return TRUE;
}
state = CLUTTER_KEY_STATE_RELEASED;
}
clutter_virtual_input_device_notify_key (session->virtual_keyboard,
CLUTTER_CURRENT_TIME,
@ -426,9 +460,22 @@ handle_notify_keyboard_keysym (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
if (pressed)
{
ensure_virtual_device (session, CLUTTER_KEYBOARD_DEVICE);
state = CLUTTER_KEY_STATE_PRESSED;
}
else
{
if (!session->virtual_keyboard)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Invalid key event");
return TRUE;
}
state = CLUTTER_KEY_STATE_RELEASED;
}
clutter_virtual_input_device_notify_keyval (session->virtual_keyboard,
CLUTTER_CURRENT_TIME,
@ -477,9 +524,22 @@ handle_notify_pointer_button (MetaDBusRemoteDesktopSession *skeleton,
button = translate_to_clutter_button (button_code);
if (pressed)
{
ensure_virtual_device (session, CLUTTER_POINTER_DEVICE);
state = CLUTTER_BUTTON_STATE_PRESSED;
}
else
{
if (!session->virtual_pointer)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Invalid button event");
return TRUE;
}
state = CLUTTER_BUTTON_STATE_RELEASED;
}
clutter_virtual_input_device_notify_button (session->virtual_pointer,
CLUTTER_CURRENT_TIME,
@ -547,6 +607,8 @@ handle_notify_pointer_axis (MetaDBusRemoteDesktopSession *skeleton,
CLUTTER_SCROLL_FINISHED_VERTICAL);
}
ensure_virtual_device (session, CLUTTER_POINTER_DEVICE);
clutter_virtual_input_device_notify_scroll_continuous (session->virtual_pointer,
CLUTTER_CURRENT_TIME,
dx, dy,
@ -605,6 +667,8 @@ handle_notify_pointer_axis_discrete (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
}
ensure_virtual_device (session, CLUTTER_POINTER_DEVICE);
/*
* We don't have the actual scroll source, but only know they should be
* considered as discrete steps. The device that produces such scroll events
@ -635,6 +699,8 @@ handle_notify_pointer_motion_relative (MetaDBusRemoteDesktopSession *skeleton,
if (!meta_remote_desktop_session_check_can_notify (session, invocation))
return TRUE;
ensure_virtual_device (session, CLUTTER_POINTER_DEVICE);
clutter_virtual_input_device_notify_relative_motion (session->virtual_pointer,
CLUTTER_CURRENT_TIME,
dx, dy);
@ -678,6 +744,8 @@ handle_notify_pointer_motion_absolute (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
}
ensure_virtual_device (session, CLUTTER_POINTER_DEVICE);
if (meta_screen_cast_stream_transform_position (stream, x, y, &abs_x, &abs_y))
{
clutter_virtual_input_device_notify_absolute_motion (session->virtual_pointer,
@ -737,6 +805,8 @@ handle_notify_touch_down (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
}
ensure_virtual_device (session, CLUTTER_TOUCHSCREEN_DEVICE);
if (meta_screen_cast_stream_transform_position (stream, x, y, &abs_x, &abs_y))
{
clutter_virtual_input_device_notify_touch_down (session->virtual_touchscreen,
@ -798,6 +868,14 @@ handle_notify_touch_motion (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
}
if (!session->virtual_touchscreen)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Invalid touch point");
return TRUE;
}
if (meta_screen_cast_stream_transform_position (stream, x, y, &abs_x, &abs_y))
{
clutter_virtual_input_device_notify_touch_motion (session->virtual_touchscreen,
@ -835,6 +913,14 @@ handle_notify_touch_up (MetaDBusRemoteDesktopSession *skeleton,
return TRUE;
}
if (!session->virtual_touchscreen)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Invalid touch point");
return TRUE;
}
clutter_virtual_input_device_notify_touch_up (session->virtual_touchscreen,
CLUTTER_CURRENT_TIME,
slot);