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44624736c5
Make the Wayland objects push the state relevant to their role to the MetaSurfaceActor instead of MetaSurfaceActorWayland pulling the state from the associated surface. This makes the relationship between the actor and the objects that constructs it more clear; the actor is a drawable that the protocol objects control, not the other way around. This will make it easier to "detach" a surface actor from a surface, which is necessary when unmapping a window while the underlying surface is yet to be destroyed and potentially reused. https://gitlab.gnome.org/GNOME/mutter/merge_requests/5 https://bugzilla.gnome.org/show_bug.cgi?id=791938
508 lines
17 KiB
C
508 lines
17 KiB
C
/*
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* Copyright (C) 2012,2013 Intel Corporation
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* Copyright (C) 2013-2017 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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#include "config.h"
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#include "wayland/meta-wayland-subsurface.h"
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#include "compositor/meta-surface-actor-wayland.h"
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#include "wayland/meta-wayland.h"
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#include "wayland/meta-wayland-actor-surface.h"
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#include "wayland/meta-wayland-buffer.h"
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#include "wayland/meta-wayland-surface.h"
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#include "wayland/meta-window-wayland.h"
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typedef enum
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{
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META_WAYLAND_SUBSURFACE_PLACEMENT_ABOVE,
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META_WAYLAND_SUBSURFACE_PLACEMENT_BELOW
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} MetaWaylandSubsurfacePlacement;
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typedef struct
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{
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MetaWaylandSubsurfacePlacement placement;
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MetaWaylandSurface *sibling;
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struct wl_listener sibling_destroy_listener;
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} MetaWaylandSubsurfacePlacementOp;
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struct _MetaWaylandSubsurface
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{
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MetaWaylandActorSurface parent;
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};
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G_DEFINE_TYPE (MetaWaylandSubsurface,
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meta_wayland_subsurface,
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META_TYPE_WAYLAND_ACTOR_SURFACE)
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static void
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sync_actor_subsurface_state (MetaWaylandSurface *surface)
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{
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ClutterActor *actor = CLUTTER_ACTOR (surface->surface_actor);
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MetaWindow *toplevel_window;
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int geometry_scale;
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int x, y;
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toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
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if (!toplevel_window)
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return;
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if (toplevel_window->client_type == META_WINDOW_CLIENT_TYPE_X11)
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return;
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geometry_scale = meta_window_wayland_get_geometry_scale (toplevel_window);
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x = (surface->offset_x + surface->sub.x) * geometry_scale;
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y = (surface->offset_y + surface->sub.y) * geometry_scale;
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clutter_actor_set_position (actor, x, y);
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if (surface->buffer_ref.buffer)
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clutter_actor_show (actor);
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else
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clutter_actor_hide (actor);
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}
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void
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meta_wayland_subsurface_parent_state_applied (MetaWaylandSubsurface *subsurface)
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{
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MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (subsurface);
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MetaWaylandActorSurface *actor_surface =
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META_WAYLAND_ACTOR_SURFACE (subsurface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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if (surface->sub.pending_pos)
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{
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surface->sub.x = surface->sub.pending_x;
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surface->sub.y = surface->sub.pending_y;
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surface->sub.pending_pos = FALSE;
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}
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if (surface->sub.pending_placement_ops)
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{
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GSList *it;
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MetaWaylandSurface *parent = surface->sub.parent;
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ClutterActor *parent_actor =
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clutter_actor_get_parent (CLUTTER_ACTOR (parent->surface_actor));
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ClutterActor *surface_actor = CLUTTER_ACTOR (surface->surface_actor);
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for (it = surface->sub.pending_placement_ops; it; it = it->next)
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{
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MetaWaylandSubsurfacePlacementOp *op = it->data;
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ClutterActor *sibling_actor;
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if (!op->sibling)
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{
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g_slice_free (MetaWaylandSubsurfacePlacementOp, op);
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continue;
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}
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sibling_actor = CLUTTER_ACTOR (op->sibling->surface_actor);
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switch (op->placement)
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{
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case META_WAYLAND_SUBSURFACE_PLACEMENT_ABOVE:
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clutter_actor_set_child_above_sibling (parent_actor,
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surface_actor,
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sibling_actor);
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break;
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case META_WAYLAND_SUBSURFACE_PLACEMENT_BELOW:
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clutter_actor_set_child_below_sibling (parent_actor,
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surface_actor,
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sibling_actor);
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break;
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}
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wl_list_remove (&op->sibling_destroy_listener.link);
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g_slice_free (MetaWaylandSubsurfacePlacementOp, op);
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}
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g_slist_free (surface->sub.pending_placement_ops);
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surface->sub.pending_placement_ops = NULL;
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}
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if (meta_wayland_surface_is_effectively_synchronized (surface))
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meta_wayland_surface_apply_pending_state (surface, surface->sub.pending);
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meta_wayland_actor_surface_sync_actor_state (actor_surface);
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}
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void
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meta_wayland_subsurface_union_geometry (MetaWaylandSubsurface *subsurface,
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int parent_x,
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int parent_y,
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MetaRectangle *out_geometry)
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{
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MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (subsurface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandBuffer *buffer;
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CoglTexture *texture;
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MetaRectangle geometry;
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GList *l;
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buffer = surface->buffer_ref.buffer;
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if (!buffer)
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return;
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texture = meta_wayland_buffer_get_texture (buffer);
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geometry = (MetaRectangle) {
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.x = surface->offset_x + surface->sub.x,
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.y = surface->offset_y + surface->sub.y,
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.width = cogl_texture_get_width (texture) / surface->scale,
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.height = cogl_texture_get_height (texture) / surface->scale,
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};
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meta_rectangle_union (out_geometry, &geometry, out_geometry);
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for (l = surface->subsurfaces; l; l = l->next)
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{
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MetaWaylandSurface *subsurface_surface = l->data;
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MetaWaylandSubsurface *subsurface =
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META_WAYLAND_SUBSURFACE (subsurface_surface->role);
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meta_wayland_subsurface_union_geometry (subsurface,
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parent_x + geometry.x,
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parent_y + geometry.y,
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out_geometry);
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}
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}
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static MetaWaylandSurface *
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meta_wayland_subsurface_get_toplevel (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandSurface *parent = surface->sub.parent;
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if (parent)
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return meta_wayland_surface_get_toplevel (parent);
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else
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return NULL;
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}
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static void
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meta_wayland_subsurface_sync_actor_state (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandActorSurfaceClass *actor_surface_class =
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META_WAYLAND_ACTOR_SURFACE_CLASS (meta_wayland_subsurface_parent_class);
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actor_surface_class->sync_actor_state (actor_surface);
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sync_actor_subsurface_state (surface);
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}
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static void
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meta_wayland_subsurface_init (MetaWaylandSubsurface *role)
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{
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}
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static void
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meta_wayland_subsurface_class_init (MetaWaylandSubsurfaceClass *klass)
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{
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MetaWaylandSurfaceRoleClass *surface_role_class =
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META_WAYLAND_SURFACE_ROLE_CLASS (klass);
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MetaWaylandActorSurfaceClass *actor_surface_class =
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META_WAYLAND_ACTOR_SURFACE_CLASS (klass);
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surface_role_class->get_toplevel = meta_wayland_subsurface_get_toplevel;
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actor_surface_class->sync_actor_state =
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meta_wayland_subsurface_sync_actor_state;
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}
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static void
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unparent_actor (MetaWaylandSurface *surface)
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{
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ClutterActor *actor = CLUTTER_ACTOR (surface->surface_actor);
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ClutterActor *parent_actor;
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parent_actor = clutter_actor_get_parent (actor);
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clutter_actor_remove_child (parent_actor, actor);
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}
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static void
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wl_subsurface_destructor (struct wl_resource *resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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meta_wayland_compositor_destroy_frame_callbacks (surface->compositor,
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surface);
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if (surface->sub.parent)
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{
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wl_list_remove (&surface->sub.parent_destroy_listener.link);
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surface->sub.parent->subsurfaces =
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g_list_remove (surface->sub.parent->subsurfaces, surface);
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unparent_actor (surface);
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surface->sub.parent = NULL;
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}
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g_clear_object (&surface->sub.pending);
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surface->wl_subsurface = NULL;
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}
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static void
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wl_subsurface_destroy (struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy (resource);
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}
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static void
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wl_subsurface_set_position (struct wl_client *client,
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struct wl_resource *resource,
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int32_t x,
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int32_t y)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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surface->sub.pending_x = x;
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surface->sub.pending_y = y;
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surface->sub.pending_pos = TRUE;
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}
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static gboolean
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is_valid_sibling (MetaWaylandSurface *surface,
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MetaWaylandSurface *sibling)
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{
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if (surface->sub.parent == sibling)
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return TRUE;
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if (surface->sub.parent == sibling->sub.parent)
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return TRUE;
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return FALSE;
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}
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static void
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subsurface_handle_pending_sibling_destroyed (struct wl_listener *listener,
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void *data)
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{
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MetaWaylandSubsurfacePlacementOp *op =
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wl_container_of (listener, op, sibling_destroy_listener);
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op->sibling = NULL;
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}
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static void
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queue_subsurface_placement (MetaWaylandSurface *surface,
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MetaWaylandSurface *sibling,
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MetaWaylandSubsurfacePlacement placement)
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{
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MetaWaylandSubsurfacePlacementOp *op =
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g_slice_new (MetaWaylandSubsurfacePlacementOp);
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op->placement = placement;
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op->sibling = sibling;
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op->sibling_destroy_listener.notify =
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subsurface_handle_pending_sibling_destroyed;
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wl_resource_add_destroy_listener (sibling->resource,
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&op->sibling_destroy_listener);
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surface->sub.pending_placement_ops =
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g_slist_append (surface->sub.pending_placement_ops, op);
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}
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static void
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wl_subsurface_place_above (struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *sibling_resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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MetaWaylandSurface *sibling = wl_resource_get_user_data (sibling_resource);
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if (!is_valid_sibling (surface, sibling))
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{
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wl_resource_post_error (resource, WL_SUBSURFACE_ERROR_BAD_SURFACE,
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"wl_subsurface::place_above: wl_surface@%d is "
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"not a valid parent or sibling",
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wl_resource_get_id (sibling->resource));
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return;
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}
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queue_subsurface_placement (surface,
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sibling,
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META_WAYLAND_SUBSURFACE_PLACEMENT_ABOVE);
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}
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static void
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wl_subsurface_place_below (struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *sibling_resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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MetaWaylandSurface *sibling = wl_resource_get_user_data (sibling_resource);
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if (!is_valid_sibling (surface, sibling))
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{
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wl_resource_post_error (resource, WL_SUBSURFACE_ERROR_BAD_SURFACE,
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"wl_subsurface::place_below: wl_surface@%d is "
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"not a valid parent or sibling",
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wl_resource_get_id (sibling->resource));
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return;
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}
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queue_subsurface_placement (surface,
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sibling,
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META_WAYLAND_SUBSURFACE_PLACEMENT_BELOW);
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}
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static void
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wl_subsurface_set_sync (struct wl_client *client,
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struct wl_resource *resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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surface->sub.synchronous = TRUE;
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}
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static void
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wl_subsurface_set_desync (struct wl_client *client,
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struct wl_resource *resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
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gboolean was_effectively_synchronized;
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was_effectively_synchronized =
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meta_wayland_surface_is_effectively_synchronized (surface);
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surface->sub.synchronous = FALSE;
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if (was_effectively_synchronized &&
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!meta_wayland_surface_is_effectively_synchronized (surface))
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meta_wayland_surface_apply_pending_state (surface, surface->sub.pending);
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}
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static const struct wl_subsurface_interface meta_wayland_wl_subsurface_interface = {
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wl_subsurface_destroy,
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wl_subsurface_set_position,
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wl_subsurface_place_above,
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wl_subsurface_place_below,
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wl_subsurface_set_sync,
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wl_subsurface_set_desync,
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};
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static void
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wl_subcompositor_destroy (struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy (resource);
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}
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static void
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surface_handle_parent_surface_destroyed (struct wl_listener *listener,
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void *data)
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{
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MetaWaylandSurface *surface = wl_container_of (listener,
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surface,
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sub.parent_destroy_listener);
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surface->sub.parent = NULL;
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unparent_actor (surface);
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}
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static void
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wl_subcompositor_get_subsurface (struct wl_client *client,
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struct wl_resource *resource,
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uint32_t id,
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struct wl_resource *surface_resource,
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struct wl_resource *parent_resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
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MetaWaylandSurface *parent = wl_resource_get_user_data (parent_resource);
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MetaWindow *toplevel_window;
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if (surface->wl_subsurface)
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{
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wl_resource_post_error (surface_resource,
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WL_DISPLAY_ERROR_INVALID_OBJECT,
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"wl_subcompositor::get_subsurface already requested");
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return;
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}
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if (!meta_wayland_surface_assign_role (surface,
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META_TYPE_WAYLAND_SUBSURFACE,
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NULL))
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{
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wl_resource_post_error (resource, WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE,
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"wl_surface@%d already has a different role",
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wl_resource_get_id (surface->resource));
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return;
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}
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toplevel_window = meta_wayland_surface_get_toplevel_window (parent);
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if (toplevel_window &&
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toplevel_window->client_type == META_WINDOW_CLIENT_TYPE_X11)
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g_warning ("XWayland subsurfaces not currently supported");
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surface->wl_subsurface =
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wl_resource_create (client,
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&wl_subsurface_interface,
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wl_resource_get_version (resource),
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id);
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wl_resource_set_implementation (surface->wl_subsurface,
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&meta_wayland_wl_subsurface_interface,
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surface,
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wl_subsurface_destructor);
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surface->sub.pending = g_object_new (META_TYPE_WAYLAND_PENDING_STATE, NULL);
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surface->sub.synchronous = TRUE;
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surface->sub.parent = parent;
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surface->sub.parent_destroy_listener.notify =
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surface_handle_parent_surface_destroyed;
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wl_resource_add_destroy_listener (parent->resource,
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&surface->sub.parent_destroy_listener);
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parent->subsurfaces = g_list_append (parent->subsurfaces, surface);
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clutter_actor_add_child (CLUTTER_ACTOR (parent->surface_actor),
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CLUTTER_ACTOR (surface->surface_actor));
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clutter_actor_set_reactive (CLUTTER_ACTOR (surface->surface_actor), TRUE);
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}
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static const struct wl_subcompositor_interface meta_wayland_subcompositor_interface = {
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wl_subcompositor_destroy,
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wl_subcompositor_get_subsurface,
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};
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static void
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bind_subcompositor (struct wl_client *client,
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void *data,
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uint32_t version,
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uint32_t id)
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{
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struct wl_resource *resource;
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resource = wl_resource_create (client, &wl_subcompositor_interface,
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version, id);
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wl_resource_set_implementation (resource, &meta_wayland_subcompositor_interface,
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data, NULL);
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}
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void
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meta_wayland_subsurfaces_init (MetaWaylandCompositor *compositor)
|
|
{
|
|
if (wl_global_create (compositor->wayland_display,
|
|
&wl_subcompositor_interface,
|
|
META_WL_SUBCOMPOSITOR_VERSION,
|
|
compositor, bind_subcompositor) == NULL)
|
|
g_error ("Failed to register a global wl-subcompositor object");
|
|
}
|