mutter/src/wayland/meta-wayland-data-device.h
Jonas Ådahl 2731f0cda4 wayland: Setup and use ownership chains
As elsewhere, make sure objects that need to have a ownership up to the
context, and use this ownership chain to find relevant components, such
as the backend or the Wayland compositor object instance.

wayland/data-device: Hook up data devices to seats

They are tied to a seat - make that connection in struct fields too, so
that related objects can get to the context via it.

wayland: Don't get Wayland compositor via singleton getter

This means via the ownership chain or equivalent.

xwayland: Hook up manager to Wayland compositor

Same applies to the drag-n-drop struct.

xwayland: Make X11 event handling compositor instance aware

This avoids finding it via singletons in the callee.

xwayland: Don't get Wayland compositor from singleton

xwayland: Pass manager when handling dnd event

window/xwayland: Don't get Wayland compositor from singleton

xwayland/grab-keyboard: Don't get backend from singleton

xwayland: Don't get backend from singleton

wayland: Always get the backend from the context

This means traveling up the ownership chain or equivalent when
necessary.

wayland: Hook up data devices, offers and sources to the compositor

This allows tying them to a context without going through any
singletons.

wayland: Don't get display from singleton

xwayland: Don't get display from singleton

tablet: Don't get display from singleton

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00

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C

/*
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef META_WAYLAND_DATA_DEVICE_H
#define META_WAYLAND_DATA_DEVICE_H
#include <glib-object.h>
#include <wayland-server.h>
#include "clutter/clutter.h"
#include "meta/meta-selection-source.h"
#include "wayland/meta-wayland-data-offer.h"
#include "wayland/meta-wayland-data-source.h"
#include "wayland/meta-wayland-types.h"
typedef struct _MetaWaylandDragGrab MetaWaylandDragGrab;
typedef struct _MetaWaylandDataSourceFuncs MetaWaylandDataSourceFuncs;
struct _MetaWaylandDataDevice
{
MetaWaylandSeat *seat;
uint32_t selection_serial;
MetaWaylandDataSource *selection_data_source;
MetaWaylandDataSource *dnd_data_source;
struct wl_list resource_list;
struct wl_list focus_resource_list;
MetaWaylandDragGrab *current_grab;
struct wl_client *focus_client;
guint selection_owner_signal_id;
MetaSelectionSource *owners[META_N_SELECTION_TYPES];
};
void meta_wayland_data_device_manager_init (MetaWaylandCompositor *compositor);
void meta_wayland_data_device_init (MetaWaylandDataDevice *data_device,
MetaWaylandSeat *seat);
MetaWaylandSeat * meta_wayland_data_device_get_seat (MetaWaylandDataDevice *data_device);
void meta_wayland_data_device_set_keyboard_focus (MetaWaylandDataDevice *data_device);
gboolean meta_wayland_data_device_is_dnd_surface (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface);
MetaWaylandDragGrab *
meta_wayland_data_device_get_current_grab (MetaWaylandDataDevice *data_device);
void meta_wayland_data_device_set_dnd_source (MetaWaylandDataDevice *data_device,
MetaWaylandDataSource *source);
void meta_wayland_data_device_set_selection (MetaWaylandDataDevice *data_device,
MetaWaylandDataSource *source,
guint32 serial);
void meta_wayland_data_device_unset_dnd_selection (MetaWaylandDataDevice *data_device);
const MetaWaylandDragDestFuncs *
meta_wayland_data_device_get_drag_dest_funcs (void);
void meta_wayland_data_device_start_drag (MetaWaylandDataDevice *data_device,
struct wl_client *client,
const MetaWaylandPointerGrabInterface *funcs,
MetaWaylandSurface *surface,
MetaWaylandDataSource *source,
MetaWaylandSurface *icon_surface);
void meta_wayland_data_device_end_drag (MetaWaylandDataDevice *data_device);
void meta_wayland_drag_grab_set_focus (MetaWaylandDragGrab *drag_grab,
MetaWaylandSurface *surface);
MetaWaylandSurface *
meta_wayland_drag_grab_get_focus (MetaWaylandDragGrab *drag_grab);
void meta_wayland_drag_grab_update_feedback_actor (MetaWaylandDragGrab *drag_grab,
const ClutterEvent *event);
#endif /* META_WAYLAND_DATA_DEVICE_H */