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The wp_pointer_constraints protocol is a protocol which enables clients to manipulate the behavior of the pointer cursor associated with a seat. Currently available constraints are locking the pointer to a static position, and confining the pointer to a given region. Currently locking is fully implemented, and confining is implemented for rectangular confinement regions. What else is lacking is less troublesome semantics for enabling the lock or confinement; currently the only requirement implemented is that the window that appears focused is the one that may aquire the lock. This means that a pointer could be 'stolen' by creating a new window that receives active focus, or when using focus-follows-mouse, a pointer passes a window that has requested a lock. This semantics can be changed and the protocol itself allows any semantics as seems fit. https://bugzilla.gnome.org/show_bug.cgi?id=744104
291 lines
11 KiB
C
291 lines
11 KiB
C
/*
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* Copyright (C) 2013 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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#ifndef META_WAYLAND_SURFACE_H
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#define META_WAYLAND_SURFACE_H
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#include <wayland-server.h>
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#include <xkbcommon/xkbcommon.h>
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#include <clutter/clutter.h>
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#include <glib.h>
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#include <cairo.h>
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#include <meta/meta-cursor-tracker.h>
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#include "meta-wayland-types.h"
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#include "meta-surface-actor.h"
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#include "backends/meta-monitor-manager-private.h"
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#include "meta-wayland-pointer-constraints.h"
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typedef struct _MetaWaylandPendingState MetaWaylandPendingState;
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#define META_TYPE_WAYLAND_SURFACE (meta_wayland_surface_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurface,
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meta_wayland_surface,
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META, WAYLAND_SURFACE,
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GObject);
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#define META_TYPE_WAYLAND_SURFACE_ROLE (meta_wayland_surface_role_get_type ())
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G_DECLARE_DERIVABLE_TYPE (MetaWaylandSurfaceRole, meta_wayland_surface_role,
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META, WAYLAND_SURFACE_ROLE, GObject);
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#define META_TYPE_WAYLAND_PENDING_STATE (meta_wayland_pending_state_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandPendingState,
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meta_wayland_pending_state,
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META, WAYLAND_PENDING_STATE,
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GObject);
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struct _MetaWaylandSurfaceRoleClass
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{
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GObjectClass parent_class;
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void (*assigned) (MetaWaylandSurfaceRole *surface_role);
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void (*commit) (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandPendingState *pending);
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gboolean (*is_on_output) (MetaWaylandSurfaceRole *surface_role,
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MetaMonitorInfo *monitor);
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};
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struct _MetaWaylandSerial {
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gboolean set;
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uint32_t value;
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};
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#define META_TYPE_WAYLAND_SURFACE_ROLE_SUBSURFACE (meta_wayland_surface_role_subsurface_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurfaceRoleSubsurface,
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meta_wayland_surface_role_subsurface,
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META, WAYLAND_SURFACE_ROLE_SUBSURFACE,
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MetaWaylandSurfaceRole);
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#define META_TYPE_WAYLAND_SURFACE_ROLE_XDG_SURFACE (meta_wayland_surface_role_xdg_surface_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurfaceRoleXdgSurface,
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meta_wayland_surface_role_xdg_surface,
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META, WAYLAND_SURFACE_ROLE_XDG_SURFACE,
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MetaWaylandSurfaceRole);
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#define META_TYPE_WAYLAND_SURFACE_ROLE_XDG_POPUP (meta_wayland_surface_role_xdg_popup_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurfaceRoleXdgPopup,
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meta_wayland_surface_role_xdg_popup,
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META, WAYLAND_SURFACE_ROLE_XDG_POPUP,
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MetaWaylandSurfaceRole);
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#define META_TYPE_WAYLAND_SURFACE_ROLE_WL_SHELL_SURFACE (meta_wayland_surface_role_wl_shell_surface_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurfaceRoleWlShellSurface,
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meta_wayland_surface_role_wl_shell_surface,
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META, WAYLAND_SURFACE_ROLE_WL_SHELL_SURFACE,
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MetaWaylandSurfaceRole);
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#define META_TYPE_WAYLAND_SURFACE_ROLE_DND (meta_wayland_surface_role_dnd_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandSurfaceRoleDND,
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meta_wayland_surface_role_dnd,
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META, WAYLAND_SURFACE_ROLE_DND,
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MetaWaylandSurfaceRole);
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struct _MetaWaylandPendingState
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{
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GObject parent;
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/* wl_surface.attach */
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gboolean newly_attached;
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MetaWaylandBuffer *buffer;
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struct wl_listener buffer_destroy_listener;
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int32_t dx;
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int32_t dy;
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int scale;
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/* wl_surface.damage */
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cairo_region_t *damage;
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cairo_region_t *input_region;
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gboolean input_region_set;
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cairo_region_t *opaque_region;
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gboolean opaque_region_set;
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/* wl_surface.frame */
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struct wl_list frame_callback_list;
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MetaRectangle new_geometry;
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gboolean has_new_geometry;
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};
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struct _MetaWaylandDragDestFuncs
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{
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void (* focus_in) (MetaWaylandDataDevice *data_device,
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MetaWaylandSurface *surface,
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MetaWaylandDataOffer *offer);
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void (* focus_out) (MetaWaylandDataDevice *data_device,
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MetaWaylandSurface *surface);
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void (* motion) (MetaWaylandDataDevice *data_device,
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MetaWaylandSurface *surface,
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const ClutterEvent *event);
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void (* drop) (MetaWaylandDataDevice *data_device,
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MetaWaylandSurface *surface);
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void (* update) (MetaWaylandDataDevice *data_device,
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MetaWaylandSurface *surface);
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};
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struct _MetaWaylandSurface
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{
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GObject parent;
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/* Generic stuff */
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struct wl_resource *resource;
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MetaWaylandCompositor *compositor;
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MetaSurfaceActor *surface_actor;
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MetaWaylandSurfaceRole *role;
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MetaWindow *window;
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MetaWaylandBuffer *buffer;
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struct wl_listener buffer_destroy_listener;
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cairo_region_t *input_region;
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cairo_region_t *opaque_region;
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int scale;
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int32_t offset_x, offset_y;
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GList *subsurfaces;
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GHashTable *outputs_to_destroy_notify_id;
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/* List of pending frame callbacks that needs to stay queued longer than one
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* commit sequence, such as when it has not yet been assigned a role.
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*/
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struct wl_list pending_frame_callback_list;
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struct {
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const MetaWaylandDragDestFuncs *funcs;
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} dnd;
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/* All the pending state that wl_surface.commit will apply. */
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MetaWaylandPendingState *pending;
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/* Extension resources. */
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struct wl_resource *xdg_surface;
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struct wl_resource *xdg_popup;
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struct wl_resource *wl_shell_surface;
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struct wl_resource *gtk_surface;
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struct wl_resource *wl_subsurface;
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/* xdg_surface stuff */
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struct wl_resource *xdg_shell_resource;
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MetaWaylandSerial acked_configure_serial;
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gboolean has_set_geometry;
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gboolean is_modal;
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/* xdg_popup */
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struct {
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MetaWaylandSurface *parent;
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struct wl_listener parent_destroy_listener;
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MetaWaylandPopup *popup;
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struct wl_listener destroy_listener;
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} popup;
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/* wl_subsurface stuff. */
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struct {
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MetaWaylandSurface *parent;
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struct wl_listener parent_destroy_listener;
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int x;
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int y;
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/* When the surface is synchronous, its state will be applied
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* when the parent is committed. This is done by moving the
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* "real" pending state below to here when this surface is
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* committed and in synchronous mode.
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*
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* When the parent surface is committed, we apply the pending
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* state here.
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*/
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gboolean synchronous;
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MetaWaylandPendingState *pending;
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int32_t pending_x;
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int32_t pending_y;
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gboolean pending_pos;
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GSList *pending_placement_ops;
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} sub;
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GList *pointer_constraints;
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};
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void meta_wayland_shell_init (MetaWaylandCompositor *compositor);
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MetaWaylandSurface *meta_wayland_surface_create (MetaWaylandCompositor *compositor,
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struct wl_client *client,
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struct wl_resource *compositor_resource,
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guint32 id);
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gboolean meta_wayland_surface_assign_role (MetaWaylandSurface *surface,
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GType role_type);
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void meta_wayland_surface_set_window (MetaWaylandSurface *surface,
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MetaWindow *window);
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void meta_wayland_surface_configure_notify (MetaWaylandSurface *surface,
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int width,
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int height,
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MetaWaylandSerial *sent_serial);
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void meta_wayland_surface_ping (MetaWaylandSurface *surface,
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guint32 serial);
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void meta_wayland_surface_delete (MetaWaylandSurface *surface);
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void meta_wayland_surface_popup_done (MetaWaylandSurface *surface);
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/* Drag dest functions */
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void meta_wayland_surface_drag_dest_focus_in (MetaWaylandSurface *surface,
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MetaWaylandDataOffer *offer);
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void meta_wayland_surface_drag_dest_motion (MetaWaylandSurface *surface,
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const ClutterEvent *event);
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void meta_wayland_surface_drag_dest_focus_out (MetaWaylandSurface *surface);
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void meta_wayland_surface_drag_dest_drop (MetaWaylandSurface *surface);
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void meta_wayland_surface_drag_dest_update (MetaWaylandSurface *surface);
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void meta_wayland_surface_update_outputs (MetaWaylandSurface *surface);
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MetaWindow * meta_wayland_surface_get_toplevel_window (MetaWaylandSurface *surface);
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void meta_wayland_surface_queue_pending_frame_callbacks (MetaWaylandSurface *surface);
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void meta_wayland_surface_queue_pending_state_frame_callbacks (MetaWaylandSurface *surface,
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MetaWaylandPendingState *pending);
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void meta_wayland_surface_add_pointer_constraint (MetaWaylandSurface *surface,
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MetaWaylandPointerConstraint *constraint);
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void meta_wayland_surface_remove_pointer_constraint (MetaWaylandSurface *surface,
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MetaWaylandPointerConstraint *constraint);
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MetaWaylandPointerConstraint *
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meta_wayland_surface_get_pointer_constraint_for_seat (MetaWaylandSurface *surface,
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MetaWaylandSeat *seat);
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void meta_wayland_surface_get_relative_coordinates (MetaWaylandSurface *surface,
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float abs_x,
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float abs_y,
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float *sx,
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float *sy);
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void meta_wayland_surface_get_absolute_coordinates (MetaWaylandSurface *surface,
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float sx,
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float sy,
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float *x,
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float *y);
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MetaWaylandSurface * meta_wayland_surface_role_get_surface (MetaWaylandSurfaceRole *role);
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#endif
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