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/*
* Copyright (C) 2015-2019 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "config.h"
#include "wayland/meta-wayland-dnd-surface.h"
#include "backends/meta-logical-monitor.h"
#include "compositor/meta-feedback-actor-private.h"
#include "wayland/meta-wayland.h"
struct _MetaWaylandSurfaceRoleDND
{
MetaWaylandActorSurface parent;
int32_t pending_offset_x;
int32_t pending_offset_y;
};
G_DEFINE_TYPE (MetaWaylandSurfaceRoleDND,
meta_wayland_surface_role_dnd,
META_TYPE_WAYLAND_ACTOR_SURFACE)
static void
dnd_surface_assigned (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurface *surface =
meta_wayland_surface_role_get_surface (surface_role);
if (wl_list_empty (&surface->unassigned.pending_frame_callback_list))
return;
meta_wayland_compositor_add_frame_callback_surface (surface->compositor,
surface);
}
static void
dnd_surface_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending)
{
MetaWaylandSurface *surface =
meta_wayland_surface_role_get_surface (surface_role);
MetaWaylandSurfaceRoleDND *surface_role_dnd =
META_WAYLAND_SURFACE_ROLE_DND (surface_role);
MetaWaylandSurfaceRoleClass *surface_role_class =
META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_surface_role_dnd_parent_class);
meta_wayland_compositor_add_frame_callback_surface (surface->compositor,
surface);
surface_role_dnd->pending_offset_x = pending->dx;
surface_role_dnd->pending_offset_y = pending->dy;
surface_role_class->apply_state (surface_role, pending);
}
static MetaLogicalMonitor *
dnd_surface_find_logical_monitor (MetaWaylandActorSurface *actor_surface)
{
MetaWaylandSurfaceRole *surface_role =
META_WAYLAND_SURFACE_ROLE (actor_surface);
MetaWaylandSurface *surface =
meta_wayland_surface_role_get_surface (surface_role);
MetaContext *context =
meta_wayland_compositor_get_context (surface->compositor);
MetaBackend *backend = meta_context_get_backend (context);
MetaCursorTracker *cursor_tracker =
meta_backend_get_cursor_tracker (backend);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
graphene_point_t point;
meta_cursor_tracker_get_pointer (cursor_tracker, &point, NULL);
return meta_monitor_manager_get_logical_monitor_at (monitor_manager,
point.x, point.y);
}
static int
dnd_subsurface_get_geometry_scale (MetaWaylandActorSurface *actor_surface)
{
MetaWaylandSurfaceRole *role = META_WAYLAND_SURFACE_ROLE (actor_surface);
MetaWaylandSurface *surface = meta_wayland_surface_role_get_surface (role);
MetaContext *context =
meta_wayland_compositor_get_context (surface->compositor);
MetaBackend *backend = meta_context_get_backend (context);
if (meta_backend_is_stage_views_scaled (backend))
{
return 1;
}
else
{
MetaLogicalMonitor *logical_monitor;
logical_monitor = dnd_surface_find_logical_monitor (actor_surface);
return (int) roundf (meta_logical_monitor_get_scale (logical_monitor));
}
}
static void
dnd_subsurface_sync_actor_state (MetaWaylandActorSurface *actor_surface)
{
MetaSurfaceActor *surface_actor =
meta_wayland_actor_surface_get_actor (actor_surface);
MetaFeedbackActor *feedback_actor =
META_FEEDBACK_ACTOR (clutter_actor_get_parent (CLUTTER_ACTOR (surface_actor)));
MetaWaylandSurfaceRole *surface_role =
META_WAYLAND_SURFACE_ROLE (actor_surface);
MetaWaylandSurfaceRoleDND *surface_role_dnd =
META_WAYLAND_SURFACE_ROLE_DND (surface_role);
MetaWaylandActorSurfaceClass *actor_surface_class =
META_WAYLAND_ACTOR_SURFACE_CLASS (meta_wayland_surface_role_dnd_parent_class);
int geometry_scale;
float anchor_x;
float anchor_y;
g_return_if_fail (META_IS_FEEDBACK_ACTOR (feedback_actor));
geometry_scale =
meta_wayland_actor_surface_get_geometry_scale (actor_surface);
meta_feedback_actor_set_geometry_scale (feedback_actor, geometry_scale);
meta_feedback_actor_get_anchor (feedback_actor, &anchor_x, &anchor_y);
anchor_x -= surface_role_dnd->pending_offset_x;
anchor_y -= surface_role_dnd->pending_offset_y;
meta_feedback_actor_set_anchor (feedback_actor, anchor_x, anchor_y);
actor_surface_class->sync_actor_state (actor_surface);
}
static void
meta_wayland_surface_role_dnd_init (MetaWaylandSurfaceRoleDND *role)
{
}
static void
meta_wayland_surface_role_dnd_class_init (MetaWaylandSurfaceRoleDNDClass *klass)
{
MetaWaylandSurfaceRoleClass *surface_role_class =
META_WAYLAND_SURFACE_ROLE_CLASS (klass);
MetaWaylandActorSurfaceClass *actor_surface_class =
META_WAYLAND_ACTOR_SURFACE_CLASS (klass);
surface_role_class->assigned = dnd_surface_assigned;
surface_role_class->apply_state = dnd_surface_apply_state;
actor_surface_class->get_geometry_scale = dnd_subsurface_get_geometry_scale;
actor_surface_class->sync_actor_state = dnd_subsurface_sync_actor_state;
}
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