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92375c75f8
This is inspired by 98892391d7 where the usage of
`g_signal_handler_disconnect()` without resetting the corresponding
handler id later resulted in a bug. Using `g_clear_signal_handler()`
makes sure we avoid similar bugs and is almost always the better
alternative. We use it for new code, let's clean up the old code to
also use it.
A further benefit is that it can get called even if the passed id is
0, allowing us to remove a lot of now unnessecary checks, and the fact
that `g_clear_signal_handler()` checks for the right type size, forcing us
to clean up all places where we used `guint` instead of `gulong`.
No functional changes intended here and all changes should be trivial,
thus bundled in one big commit.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/940
161 lines
5.9 KiB
C
161 lines
5.9 KiB
C
/*
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* Wayland Support
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*
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* Copyright (C) 2013 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef META_WAYLAND_POINTER_H
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#define META_WAYLAND_POINTER_H
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#include <glib.h>
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#include <wayland-server.h>
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#include "meta/meta-cursor-tracker.h"
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#include "wayland/meta-wayland-pointer-constraints.h"
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#include "wayland/meta-wayland-pointer-gesture-pinch.h"
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#include "wayland/meta-wayland-pointer-gesture-swipe.h"
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#include "wayland/meta-wayland-seat.h"
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#include "wayland/meta-wayland-surface.h"
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#include "wayland/meta-wayland-types.h"
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#define META_TYPE_WAYLAND_POINTER (meta_wayland_pointer_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandPointer, meta_wayland_pointer,
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META, WAYLAND_POINTER,
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MetaWaylandInputDevice)
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struct _MetaWaylandPointerGrabInterface
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{
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void (*focus) (MetaWaylandPointerGrab *grab,
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MetaWaylandSurface *surface);
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void (*motion) (MetaWaylandPointerGrab *grab,
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const ClutterEvent *event);
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void (*button) (MetaWaylandPointerGrab *grab,
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const ClutterEvent *event);
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void (*cancel) (MetaWaylandPointerGrab *grab);
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};
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struct _MetaWaylandPointerGrab
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{
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const MetaWaylandPointerGrabInterface *interface;
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MetaWaylandPointer *pointer;
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};
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struct _MetaWaylandPointerClient
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{
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struct wl_list pointer_resources;
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struct wl_list swipe_gesture_resources;
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struct wl_list pinch_gesture_resources;
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struct wl_list relative_pointer_resources;
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};
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struct _MetaWaylandPointer
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{
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MetaWaylandInputDevice parent;
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MetaWaylandPointerClient *focus_client;
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GHashTable *pointer_clients;
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MetaWaylandSurface *focus_surface;
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gulong focus_surface_destroyed_handler_id;
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guint32 focus_serial;
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guint32 click_serial;
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MetaWaylandSurface *cursor_surface;
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gulong cursor_surface_destroy_id;
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MetaWaylandPointerGrab *grab;
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MetaWaylandPointerGrab default_grab;
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guint32 grab_button;
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guint32 grab_serial;
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guint32 grab_time;
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float grab_x, grab_y;
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ClutterInputDevice *device;
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MetaWaylandSurface *current;
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gulong current_surface_destroyed_handler_id;
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guint32 button_count;
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};
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void meta_wayland_pointer_enable (MetaWaylandPointer *pointer);
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void meta_wayland_pointer_disable (MetaWaylandPointer *pointer);
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void meta_wayland_pointer_update (MetaWaylandPointer *pointer,
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const ClutterEvent *event);
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gboolean meta_wayland_pointer_handle_event (MetaWaylandPointer *pointer,
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const ClutterEvent *event);
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void meta_wayland_pointer_send_motion (MetaWaylandPointer *pointer,
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const ClutterEvent *event);
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void meta_wayland_pointer_send_relative_motion (MetaWaylandPointer *pointer,
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const ClutterEvent *event);
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void meta_wayland_pointer_send_button (MetaWaylandPointer *pointer,
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const ClutterEvent *event);
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void meta_wayland_pointer_broadcast_frame (MetaWaylandPointer *pointer);
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void meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
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MetaWaylandSurface *surface);
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void meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
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MetaWaylandPointerGrab *grab);
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void meta_wayland_pointer_end_grab (MetaWaylandPointer *pointer);
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MetaWaylandPopup *meta_wayland_pointer_start_popup_grab (MetaWaylandPointer *pointer,
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MetaWaylandPopupSurface *popup_surface);
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void meta_wayland_pointer_end_popup_grab (MetaWaylandPointer *pointer);
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void meta_wayland_pointer_repick (MetaWaylandPointer *pointer);
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void meta_wayland_pointer_get_relative_coordinates (MetaWaylandPointer *pointer,
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MetaWaylandSurface *surface,
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wl_fixed_t *x,
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wl_fixed_t *y);
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void meta_wayland_pointer_create_new_resource (MetaWaylandPointer *pointer,
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struct wl_client *client,
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struct wl_resource *seat_resource,
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uint32_t id);
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gboolean meta_wayland_pointer_can_grab_surface (MetaWaylandPointer *pointer,
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MetaWaylandSurface *surface,
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uint32_t serial);
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gboolean meta_wayland_pointer_can_popup (MetaWaylandPointer *pointer,
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uint32_t serial);
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MetaWaylandSurface *meta_wayland_pointer_get_top_popup (MetaWaylandPointer *pointer);
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MetaWaylandPointerClient * meta_wayland_pointer_get_pointer_client (MetaWaylandPointer *pointer,
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struct wl_client *client);
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void meta_wayland_pointer_unbind_pointer_client_resource (struct wl_resource *resource);
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void meta_wayland_relative_pointer_init (MetaWaylandCompositor *compositor);
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MetaWaylandSeat *meta_wayland_pointer_get_seat (MetaWaylandPointer *pointer);
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void meta_wayland_surface_cursor_update (MetaWaylandSurface *cursor_surface);
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void meta_wayland_pointer_update_cursor_surface (MetaWaylandPointer *pointer);
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#endif /* META_WAYLAND_POINTER_H */
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