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mutter/src/wayland/meta-wayland-surface.c
Olivier Fourdan 52fdd24467 wayland: avoid a crash in is_effectively_synchronized() 
To check if a subsurface is effectively synchronized, we walk the
subsurface hierarchy to look for a non-subsurface parent or a subsurface
being synchronized.

However, when client is closing, the parent surface might already be
gone, in which case we end up with a surface being NULL which causes a
NULL pointer dereference and a crash.

Check if the parent surface is NULL to avoid the crash, and consider
it's already synchronized if it is NULL to avoid further updates.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/124
2018-05-03 11:39:33 +02:00

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/*
* Wayland Support
*
* Copyright (C) 2012,2013 Intel Corporation
* Copyright (C) 2013-2017 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 "meta-wayland-surface.h"
#include <clutter/clutter.h>
#include <clutter/wayland/clutter-wayland-compositor.h>
#include <clutter/wayland/clutter-wayland-surface.h>
#include <cogl/cogl-wayland-server.h>
#include <gobject/gvaluecollector.h>
#include <wayland-server.h>
#include "meta-wayland-private.h"
#include "meta-xwayland-private.h"
#include "meta-wayland-buffer.h"
#include "meta-wayland-region.h"
#include "meta-wayland-subsurface.h"
#include "meta-wayland-seat.h"
#include "meta-wayland-keyboard.h"
#include "meta-wayland-pointer.h"
#include "meta-wayland-data-device.h"
#include "meta-wayland-outputs.h"
#include "meta-wayland-xdg-shell.h"
#include "meta-wayland-legacy-xdg-shell.h"
#include "meta-wayland-wl-shell.h"
#include "meta-wayland-gtk-shell.h"
#include "meta-cursor-tracker-private.h"
#include "display-private.h"
#include "window-private.h"
#include "meta-window-wayland.h"
#include "compositor/region-utils.h"
#include "compositor/meta-shaped-texture-private.h"
#include "compositor/meta-window-actor-private.h"
#include "meta-surface-actor.h"
#include "meta-surface-actor-wayland.h"
#include "meta-xwayland-private.h"
enum {
PENDING_STATE_SIGNAL_APPLIED,
PENDING_STATE_SIGNAL_LAST_SIGNAL
};
enum
{
SURFACE_ROLE_PROP_0,
SURFACE_ROLE_PROP_SURFACE,
};
static guint pending_state_signals[PENDING_STATE_SIGNAL_LAST_SIGNAL];
typedef struct _MetaWaylandSurfaceRolePrivate
{
MetaWaylandSurface *surface;
} MetaWaylandSurfaceRolePrivate;
G_DEFINE_TYPE (MetaWaylandSurface, meta_wayland_surface, G_TYPE_OBJECT);
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaWaylandSurfaceRole,
meta_wayland_surface_role,
G_TYPE_OBJECT)
G_DEFINE_TYPE (MetaWaylandPendingState,
meta_wayland_pending_state,
G_TYPE_OBJECT);
struct _MetaWaylandSurfaceRoleDND
{
MetaWaylandSurfaceRole parent;
};
G_DEFINE_TYPE (MetaWaylandSurfaceRoleDND,
meta_wayland_surface_role_dnd,
META_TYPE_WAYLAND_SURFACE_ROLE);
enum {
SURFACE_DESTROY,
SURFACE_UNMAPPED,
SURFACE_CONFIGURE,
SURFACE_SHORTCUTS_INHIBITED,
SURFACE_SHORTCUTS_RESTORED,
SURFACE_GEOMETRY_CHANGED,
N_SURFACE_SIGNALS
};
guint surface_signals[N_SURFACE_SIGNALS] = { 0 };
static void
meta_wayland_surface_role_assigned (MetaWaylandSurfaceRole *surface_role);
static void
meta_wayland_surface_role_pre_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending);
static void
meta_wayland_surface_role_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending);
static gboolean
meta_wayland_surface_role_is_on_logical_monitor (MetaWaylandSurfaceRole *surface_role,
MetaLogicalMonitor *logical_monitor);
static MetaWaylandSurface *
meta_wayland_surface_role_get_toplevel (MetaWaylandSurfaceRole *surface_role);
static void
window_position_changed (MetaWindow *window,
MetaWaylandSurface *surface);
static void
window_actor_effects_completed (MetaWindowActor *window_actor,
MetaWaylandSurface *surface);
static void
role_assignment_valist_to_properties (GType role_type,
const char *first_property_name,
va_list var_args,
GArray *names,
GArray *values)
{
GObjectClass *object_class;
const char *property_name = first_property_name;
object_class = g_type_class_ref (role_type);
while (property_name)
{
GValue value = G_VALUE_INIT;
GParamSpec *pspec;
GType ptype;
gchar *error = NULL;
pspec = g_object_class_find_property (object_class,
property_name);
g_assert (pspec);
ptype = G_PARAM_SPEC_VALUE_TYPE (pspec);
G_VALUE_COLLECT_INIT (&value, ptype, var_args, 0, &error);
g_assert (!error);
g_array_append_val (names, property_name);
g_array_append_val (values, value);
property_name = va_arg (var_args, const char *);
}
g_type_class_unref (object_class);
}
gboolean
meta_wayland_surface_assign_role (MetaWaylandSurface *surface,
GType role_type,
const char *first_property_name,
...)
{
va_list var_args;
if (!surface->role)
{
if (first_property_name)
{
GArray *names;
GArray *values;
const char *surface_prop_name;
GValue surface_value = G_VALUE_INIT;
GObject *role_object;
names = g_array_new (FALSE, FALSE, sizeof (const char *));
values = g_array_new (FALSE, FALSE, sizeof (GValue));
g_array_set_clear_func (values, (GDestroyNotify) g_value_unset);
va_start (var_args, first_property_name);
role_assignment_valist_to_properties (role_type,
first_property_name,
var_args,
names,
values);
va_end (var_args);
surface_prop_name = "surface";
g_value_init (&surface_value, META_TYPE_WAYLAND_SURFACE);
g_value_set_object (&surface_value, surface);
g_array_append_val (names, surface_prop_name);
g_array_append_val (values, surface_value);
role_object =
g_object_new_with_properties (role_type,
values->len,
(const char **) names->data,
(const GValue *) values->data);
surface->role = META_WAYLAND_SURFACE_ROLE (role_object);
g_array_free (names, FALSE);
g_array_free (values, TRUE);
}
else
{
surface->role = g_object_new (role_type, "surface", surface, NULL);
}
meta_wayland_surface_role_assigned (surface->role);
/* Release the use count held on behalf of the just assigned role. */
if (surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
return TRUE;
}
else if (G_OBJECT_TYPE (surface->role) != role_type)
{
return FALSE;
}
else
{
va_start (var_args, first_property_name);
g_object_set_valist (G_OBJECT (surface->role),
first_property_name, var_args);
va_end (var_args);
meta_wayland_surface_role_assigned (surface->role);
return TRUE;
}
}
static void
surface_process_damage (MetaWaylandSurface *surface,
cairo_region_t *surface_region,
cairo_region_t *buffer_region)
{
MetaWaylandBuffer *buffer = surface->buffer_ref.buffer;
unsigned int buffer_width;
unsigned int buffer_height;
cairo_rectangle_int_t surface_rect;
cairo_region_t *scaled_region;
int i, n_rectangles;
/* If the client destroyed the buffer it attached before committing, but
* still posted damage, or posted damage without any buffer, don't try to
* process it on the non-existing buffer.
*/
if (!buffer)
return;
/* Intersect the damage region with the surface region before scaling in
* order to avoid integer overflow when scaling a damage region is too large
* (for example INT32_MAX which mesa passes). */
buffer_width = cogl_texture_get_width (buffer->texture);
buffer_height = cogl_texture_get_height (buffer->texture);
surface_rect = (cairo_rectangle_int_t) {
.width = buffer_width / surface->scale,
.height = buffer_height / surface->scale,
};
cairo_region_intersect_rectangle (surface_region, &surface_rect);
/* The damage region must be in the same coordinate space as the buffer,
* i.e. scaled with surface->scale. */
scaled_region = meta_region_scale (surface_region, surface->scale);
/* Now add the buffer damage on top of the scaled damage region, as buffer
* damage is already in that scale. */
cairo_region_union (scaled_region, buffer_region);
/* First update the buffer. */
meta_wayland_buffer_process_damage (buffer, scaled_region);
/* Now damage the actor. The actor expects damage in the unscaled texture
* coordinate space, i.e. same as the buffer. */
/* XXX: Should this be a signal / callback on MetaWaylandBuffer instead? */
n_rectangles = cairo_region_num_rectangles (scaled_region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (scaled_region, i, &rect);
meta_surface_actor_process_damage (meta_wayland_surface_get_actor (surface),
rect.x, rect.y,
rect.width, rect.height);
}
cairo_region_destroy (scaled_region);
}
void
meta_wayland_surface_queue_pending_state_frame_callbacks (MetaWaylandSurface *surface,
MetaWaylandPendingState *pending)
{
wl_list_insert_list (&surface->compositor->frame_callbacks,
&pending->frame_callback_list);
wl_list_init (&pending->frame_callback_list);
}
static void
dnd_surface_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending)
{
MetaWaylandSurface *surface =
meta_wayland_surface_role_get_surface (surface_role);
meta_wayland_surface_queue_pending_state_frame_callbacks (surface, pending);
}
void
meta_wayland_surface_destroy_window (MetaWaylandSurface *surface)
{
if (surface->window)
{
MetaDisplay *display = meta_get_display ();
guint32 timestamp = meta_display_get_current_time_roundtrip (display);
meta_window_unmanage (surface->window, timestamp);
}
g_assert (surface->window == NULL);
}
MetaWaylandBuffer *
meta_wayland_surface_get_buffer (MetaWaylandSurface *surface)
{
return surface->buffer_ref.buffer;
}
void
meta_wayland_surface_ref_buffer_use_count (MetaWaylandSurface *surface)
{
g_return_if_fail (surface->buffer_ref.buffer);
g_warn_if_fail (surface->buffer_ref.buffer->resource);
surface->buffer_ref.use_count++;
}
void
meta_wayland_surface_unref_buffer_use_count (MetaWaylandSurface *surface)
{
MetaWaylandBuffer *buffer = surface->buffer_ref.buffer;
g_return_if_fail (surface->buffer_ref.use_count != 0);
surface->buffer_ref.use_count--;
g_return_if_fail (buffer);
if (surface->buffer_ref.use_count == 0 && buffer->resource)
wl_buffer_send_release (buffer->resource);
}
static void
pending_buffer_resource_destroyed (MetaWaylandBuffer *buffer,
MetaWaylandPendingState *pending)
{
g_signal_handler_disconnect (buffer, pending->buffer_destroy_handler_id);
pending->buffer = NULL;
}
static void
pending_state_init (MetaWaylandPendingState *state)
{
state->newly_attached = FALSE;
state->buffer = NULL;
state->buffer_destroy_handler_id = 0;
state->dx = 0;
state->dy = 0;
state->scale = 0;
state->input_region = NULL;
state->input_region_set = FALSE;
state->opaque_region = NULL;
state->opaque_region_set = FALSE;
state->surface_damage = cairo_region_create ();
state->buffer_damage = cairo_region_create ();
wl_list_init (&state->frame_callback_list);
state->has_new_geometry = FALSE;
state->has_new_min_size = FALSE;
state->has_new_max_size = FALSE;
}
static void
pending_state_destroy (MetaWaylandPendingState *state)
{
MetaWaylandFrameCallback *cb, *next;
g_clear_pointer (&state->surface_damage, cairo_region_destroy);
g_clear_pointer (&state->buffer_damage, cairo_region_destroy);
g_clear_pointer (&state->input_region, cairo_region_destroy);
g_clear_pointer (&state->opaque_region, cairo_region_destroy);
if (state->buffer)
{
g_signal_handler_disconnect (state->buffer,
state->buffer_destroy_handler_id);
state->buffer_destroy_handler_id = 0;
}
wl_list_for_each_safe (cb, next, &state->frame_callback_list, link)
wl_resource_destroy (cb->resource);
}
static void
pending_state_reset (MetaWaylandPendingState *state)
{
pending_state_destroy (state);
pending_state_init (state);
}
static void
merge_pending_state (MetaWaylandPendingState *from,
MetaWaylandPendingState *to)
{
if (from->newly_attached)
{
if (to->buffer)
{
g_signal_handler_disconnect (to->buffer,
to->buffer_destroy_handler_id);
to->buffer_destroy_handler_id = 0;
}
if (from->buffer)
{
g_signal_handler_disconnect (from->buffer,
from->buffer_destroy_handler_id);
from->buffer_destroy_handler_id = 0;
}
to->newly_attached = TRUE;
to->buffer = from->buffer;
to->dx = from->dx;
to->dy = from->dy;
}
wl_list_insert_list (&to->frame_callback_list, &from->frame_callback_list);
cairo_region_union (to->surface_damage, from->surface_damage);
cairo_region_union (to->buffer_damage, from->buffer_damage);
cairo_region_destroy (from->surface_damage);
cairo_region_destroy (from->buffer_damage);
if (from->input_region_set)
{
if (to->input_region)
cairo_region_union (to->input_region, from->input_region);
else
to->input_region = cairo_region_reference (from->input_region);
to->input_region_set = TRUE;
cairo_region_destroy (from->input_region);
}
if (from->opaque_region_set)
{
if (to->opaque_region)
cairo_region_union (to->opaque_region, from->opaque_region);
else
to->opaque_region = cairo_region_reference (from->opaque_region);
to->opaque_region_set = TRUE;
cairo_region_destroy (from->opaque_region);
}
if (from->has_new_geometry)
{
to->new_geometry = from->new_geometry;
to->has_new_geometry = TRUE;
}
if (from->has_new_min_size)
{
to->new_min_width = from->new_min_width;
to->new_min_height = from->new_min_height;
to->has_new_min_size = TRUE;
}
if (from->has_new_max_size)
{
to->new_max_width = from->new_max_width;
to->new_max_height = from->new_max_height;
to->has_new_max_size = TRUE;
}
if (from->scale > 0)
to->scale = from->scale;
if (to->buffer && to->buffer_destroy_handler_id == 0)
{
to->buffer_destroy_handler_id =
g_signal_connect (to->buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
to);
}
pending_state_init (from);
}
static void
meta_wayland_pending_state_finalize (GObject *object)
{
MetaWaylandPendingState *state = META_WAYLAND_PENDING_STATE (object);
pending_state_destroy (state);
G_OBJECT_CLASS (meta_wayland_pending_state_parent_class)->finalize (object);
}
static void
meta_wayland_pending_state_init (MetaWaylandPendingState *state)
{
pending_state_init (state);
}
static void
meta_wayland_pending_state_class_init (MetaWaylandPendingStateClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_wayland_pending_state_finalize;
pending_state_signals[PENDING_STATE_SIGNAL_APPLIED] =
g_signal_new ("applied",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
/* A non-subsurface is always desynchronized.
*
* A subsurface is effectively synchronized if either its parent is
* synchronized or itself is in synchronized mode. */
gboolean
meta_wayland_surface_is_effectively_synchronized (MetaWaylandSurface *surface)
{
if (surface->wl_subsurface == NULL)
{
return FALSE;
}
else
{
if (surface->sub.synchronous)
{
return TRUE;
}
else
{
MetaWaylandSurface *parent = surface->sub.parent;
if (parent)
return meta_wayland_surface_is_effectively_synchronized (parent);
return TRUE;
}
}
}
static void
parent_surface_state_applied (gpointer data,
gpointer user_data)
{
MetaWaylandSurface *surface = data;
MetaWaylandSubsurface *subsurface = META_WAYLAND_SUBSURFACE (surface->role);
meta_wayland_subsurface_parent_state_applied (subsurface);
}
void
meta_wayland_surface_apply_pending_state (MetaWaylandSurface *surface,
MetaWaylandPendingState *pending)
{
if (surface->role)
{
meta_wayland_surface_role_pre_commit (surface->role, pending);
}
else
{
if (pending->newly_attached && surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
}
if (pending->newly_attached)
{
gboolean switched_buffer;
if (!surface->buffer_ref.buffer && surface->window)
meta_window_queue (surface->window, META_QUEUE_CALC_SHOWING);
/* Always release any previously held buffer. If the buffer held is same
* as the newly attached buffer, we still need to release it here, because
* wl_surface.attach+commit and wl_buffer.release on the attached buffer
* is symmetric.
*/
if (surface->buffer_held)
meta_wayland_surface_unref_buffer_use_count (surface);
switched_buffer = g_set_object (&surface->buffer_ref.buffer,
pending->buffer);
if (pending->buffer)
meta_wayland_surface_ref_buffer_use_count (surface);
if (pending->buffer)
{
GError *error = NULL;
if (!meta_wayland_buffer_attach (pending->buffer, &error))
{
g_warning ("Could not import pending buffer: %s", error->message);
wl_resource_post_error (surface->resource, WL_DISPLAY_ERROR_NO_MEMORY,
"Failed to create a texture for surface %i: %s",
wl_resource_get_id (surface->resource),
error->message);
g_error_free (error);
goto cleanup;
}
if (switched_buffer && meta_wayland_surface_get_actor (surface))
{
MetaShapedTexture *stex;
CoglTexture *texture;
CoglSnippet *snippet;
gboolean is_y_inverted;
stex = meta_surface_actor_get_texture (meta_wayland_surface_get_actor (surface));
texture = meta_wayland_buffer_get_texture (pending->buffer);
snippet = meta_wayland_buffer_create_snippet (pending->buffer);
is_y_inverted = meta_wayland_buffer_is_y_inverted (pending->buffer);
meta_shaped_texture_set_texture (stex, texture);
meta_shaped_texture_set_snippet (stex, snippet);
meta_shaped_texture_set_is_y_inverted (stex, is_y_inverted);
g_clear_pointer (&snippet, cogl_object_unref);
}
}
/* If the newly attached buffer is going to be accessed directly without
* making a copy, such as an EGL buffer, mark it as in-use don't release
* it until is replaced by a subsequent wl_surface.commit or when the
* wl_surface is destroyed.
*/
surface->buffer_held = (pending->buffer &&
!wl_shm_buffer_get (pending->buffer->resource));
}
if (pending->scale > 0)
surface->scale = pending->scale;
if (meta_wayland_surface_get_actor (surface) &&
(!cairo_region_is_empty (pending->surface_damage) ||
!cairo_region_is_empty (pending->buffer_damage)))
surface_process_damage (surface,
pending->surface_damage,
pending->buffer_damage);
surface->offset_x += pending->dx;
surface->offset_y += pending->dy;
if (pending->opaque_region_set)
{
if (surface->opaque_region)
cairo_region_destroy (surface->opaque_region);
if (pending->opaque_region)
surface->opaque_region = cairo_region_reference (pending->opaque_region);
else
surface->opaque_region = NULL;
}
if (pending->input_region_set)
{
if (surface->input_region)
cairo_region_destroy (surface->input_region);
if (pending->input_region)
surface->input_region = cairo_region_reference (pending->input_region);
else
surface->input_region = NULL;
}
if (surface->role)
{
meta_wayland_surface_role_commit (surface->role, pending);
g_assert (wl_list_empty (&pending->frame_callback_list));
}
else
{
/* Since there is no role assigned to the surface yet, keep frame
* callbacks queued until a role is assigned and we know how
* the surface will be drawn.
*/
wl_list_insert_list (&surface->pending_frame_callback_list,
&pending->frame_callback_list);
wl_list_init (&pending->frame_callback_list);
if (pending->newly_attached)
{
/* The need to keep the wl_buffer from being released depends on what
* role the surface is given. That means we need to also keep a use
* count for wl_buffer's that are used by unassigned wl_surface's.
*/
g_set_object (&surface->unassigned.buffer, surface->buffer_ref.buffer);
if (surface->unassigned.buffer)
meta_wayland_surface_ref_buffer_use_count (surface);
}
}
cleanup:
/* If we have a buffer that we are not using, decrease the use count so it may
* be released if no-one else has a use-reference to it.
*/
if (pending->newly_attached &&
!surface->buffer_held && surface->buffer_ref.buffer)
meta_wayland_surface_unref_buffer_use_count (surface);
g_signal_emit (pending,
pending_state_signals[PENDING_STATE_SIGNAL_APPLIED],
0);
pending_state_reset (pending);
g_list_foreach (surface->subsurfaces, parent_surface_state_applied, NULL);
}
static void
meta_wayland_surface_commit (MetaWaylandSurface *surface)
{
/*
* If this is a sub-surface and it is in effective synchronous mode, only
* cache the pending surface state until either one of the following two
* scenarios happens:
* 1) Its parent surface gets its state applied.
* 2) Its mode changes from synchronized to desynchronized and its parent
* surface is in effective desynchronized mode.
*/
if (meta_wayland_surface_is_effectively_synchronized (surface))
merge_pending_state (surface->pending, surface->sub.pending);
else
meta_wayland_surface_apply_pending_state (surface, surface->pending);
}
static void
wl_surface_destroy (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static void
wl_surface_attach (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *buffer_resource,
gint32 dx, gint32 dy)
{
MetaWaylandSurface *surface =
wl_resource_get_user_data (surface_resource);
MetaWaylandBuffer *buffer;
/* X11 unmanaged window */
if (!surface)
return;
if (buffer_resource)
buffer = meta_wayland_buffer_from_resource (buffer_resource);
else
buffer = NULL;
if (surface->pending->buffer)
{
g_signal_handler_disconnect (surface->pending->buffer,
surface->pending->buffer_destroy_handler_id);
}
surface->pending->newly_attached = TRUE;
surface->pending->buffer = buffer;
surface->pending->dx = dx;
surface->pending->dy = dy;
if (buffer)
{
surface->pending->buffer_destroy_handler_id =
g_signal_connect (buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
surface->pending);
}
}
static void
wl_surface_damage (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
cairo_rectangle_int_t rectangle;
/* X11 unmanaged window */
if (!surface)
return;
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (surface->pending->surface_damage, &rectangle);
}
static void
destroy_frame_callback (struct wl_resource *callback_resource)
{
MetaWaylandFrameCallback *callback =
wl_resource_get_user_data (callback_resource);
wl_list_remove (&callback->link);
g_slice_free (MetaWaylandFrameCallback, callback);
}
static void
wl_surface_frame (struct wl_client *client,
struct wl_resource *surface_resource,
guint32 callback_id)
{
MetaWaylandFrameCallback *callback;
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
/* X11 unmanaged window */
if (!surface)
return;
callback = g_slice_new0 (MetaWaylandFrameCallback);
callback->surface = surface;
callback->resource = wl_resource_create (client, &wl_callback_interface, META_WL_CALLBACK_VERSION, callback_id);
wl_resource_set_implementation (callback->resource, NULL, callback, destroy_frame_callback);
wl_list_insert (surface->pending->frame_callback_list.prev, &callback->link);
}
static void
wl_surface_set_opaque_region (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *region_resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
/* X11 unmanaged window */
if (!surface)
return;
g_clear_pointer (&surface->pending->opaque_region, cairo_region_destroy);
if (region_resource)
{
MetaWaylandRegion *region = wl_resource_get_user_data (region_resource);
cairo_region_t *cr_region = meta_wayland_region_peek_cairo_region (region);
surface->pending->opaque_region = cairo_region_copy (cr_region);
}
surface->pending->opaque_region_set = TRUE;
}
static void
wl_surface_set_input_region (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *region_resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
/* X11 unmanaged window */
if (!surface)
return;
g_clear_pointer (&surface->pending->input_region, cairo_region_destroy);
if (region_resource)
{
MetaWaylandRegion *region = wl_resource_get_user_data (region_resource);
cairo_region_t *cr_region = meta_wayland_region_peek_cairo_region (region);
surface->pending->input_region = cairo_region_copy (cr_region);
}
surface->pending->input_region_set = TRUE;
}
static void
wl_surface_commit (struct wl_client *client,
struct wl_resource *resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
/* X11 unmanaged window */
if (!surface)
return;
meta_wayland_surface_commit (surface);
}
static void
wl_surface_set_buffer_transform (struct wl_client *client,
struct wl_resource *resource,
int32_t transform)
{
g_warning ("TODO: support set_buffer_transform request");
}
static void
wl_surface_set_buffer_scale (struct wl_client *client,
struct wl_resource *resource,
int scale)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
if (scale > 0)
surface->pending->scale = scale;
else
g_warning ("Trying to set invalid buffer_scale of %d\n", scale);
}
static void
wl_surface_damage_buffer (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
cairo_rectangle_int_t rectangle;
/* X11 unmanaged window */
if (!surface)
return;
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (surface->pending->buffer_damage, &rectangle);
}
static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
wl_surface_destroy,
wl_surface_attach,
wl_surface_damage,
wl_surface_frame,
wl_surface_set_opaque_region,
wl_surface_set_input_region,
wl_surface_commit,
wl_surface_set_buffer_transform,
wl_surface_set_buffer_scale,
wl_surface_damage_buffer,
};
static void
sync_drag_dest_funcs (MetaWaylandSurface *surface)
{
if (surface->window &&
surface->window->client_type == META_WINDOW_CLIENT_TYPE_X11)
surface->dnd.funcs = meta_xwayland_selection_get_drag_dest_funcs ();
else
surface->dnd.funcs = meta_wayland_data_device_get_drag_dest_funcs ();
}
static void
surface_entered_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output)
{
GList *iter;
struct wl_resource *resource;
for (iter = wayland_output->resources; iter != NULL; iter = iter->next)
{
resource = iter->data;
if (wl_resource_get_client (resource) !=
wl_resource_get_client (surface->resource))
continue;
wl_surface_send_enter (surface->resource, resource);
}
}
static void
surface_left_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output)
{
GList *iter;
struct wl_resource *resource;
for (iter = wayland_output->resources; iter != NULL; iter = iter->next)
{
resource = iter->data;
if (wl_resource_get_client (resource) !=
wl_resource_get_client (surface->resource))
continue;
wl_surface_send_leave (surface->resource, resource);
}
}
static void
set_surface_is_on_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output,
gboolean is_on_output);
static void
surface_handle_output_destroy (MetaWaylandOutput *wayland_output,
MetaWaylandSurface *surface)
{
set_surface_is_on_output (surface, wayland_output, FALSE);
}
static void
set_surface_is_on_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output,
gboolean is_on_output)
{
gpointer orig_id;
gboolean was_on_output = g_hash_table_lookup_extended (surface->outputs_to_destroy_notify_id,
wayland_output,
NULL, &orig_id);
if (!was_on_output && is_on_output)
{
gulong id;
id = g_signal_connect (wayland_output, "output-destroyed",
G_CALLBACK (surface_handle_output_destroy),
surface);
g_hash_table_insert (surface->outputs_to_destroy_notify_id, wayland_output,
GSIZE_TO_POINTER ((gsize)id));
surface_entered_output (surface, wayland_output);
}
else if (was_on_output && !is_on_output)
{
g_hash_table_remove (surface->outputs_to_destroy_notify_id, wayland_output);
g_signal_handler_disconnect (wayland_output, (gulong) GPOINTER_TO_SIZE (orig_id));
surface_left_output (surface, wayland_output);
}
}
static void
update_surface_output_state (gpointer key, gpointer value, gpointer user_data)
{
MetaWaylandOutput *wayland_output = value;
MetaWaylandSurface *surface = user_data;
MetaLogicalMonitor *logical_monitor;
gboolean is_on_logical_monitor;
g_assert (surface->role);
logical_monitor = wayland_output->logical_monitor;
if (!logical_monitor)
{
set_surface_is_on_output (surface, wayland_output, FALSE);
return;
}
is_on_logical_monitor =
meta_wayland_surface_role_is_on_logical_monitor (surface->role,
logical_monitor);
set_surface_is_on_output (surface, wayland_output, is_on_logical_monitor);
}
static void
surface_output_disconnect_signal (gpointer key, gpointer value, gpointer user_data)
{
g_signal_handler_disconnect (key, (gulong) GPOINTER_TO_SIZE (value));
}
void
meta_wayland_surface_update_outputs (MetaWaylandSurface *surface)
{
if (!surface->compositor)
return;
g_hash_table_foreach (surface->compositor->outputs,
update_surface_output_state,
surface);
}
static void
meta_wayland_surface_update_outputs_recursively (MetaWaylandSurface *surface)
{
GList *l;
meta_wayland_surface_update_outputs (surface);
for (l = surface->subsurfaces; l != NULL; l = l->next)
meta_wayland_surface_update_outputs_recursively (l->data);
}
void
meta_wayland_surface_set_window (MetaWaylandSurface *surface,
MetaWindow *window)
{
gboolean was_unmapped = surface->window && !window;
if (surface->window == window)
return;
if (surface->window)
{
g_signal_handlers_disconnect_by_func (surface->window,
window_position_changed,
surface);
g_signal_handlers_disconnect_by_func (meta_window_actor_from_window (surface->window),
window_actor_effects_completed,
surface);
}
surface->window = window;
clutter_actor_set_reactive (CLUTTER_ACTOR (meta_wayland_surface_get_actor (surface)), !!window);
sync_drag_dest_funcs (surface);
if (was_unmapped)
g_signal_emit (surface, surface_signals[SURFACE_UNMAPPED], 0);
if (window)
{
g_signal_connect_object (window,
"position-changed",
G_CALLBACK (window_position_changed),
surface, 0);
g_signal_connect_object (meta_window_actor_from_window (window),
"effects-completed",
G_CALLBACK (window_actor_effects_completed),
surface, 0);
}
}
static void
wl_surface_destructor (struct wl_resource *resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
MetaWaylandCompositor *compositor = surface->compositor;
MetaWaylandFrameCallback *cb, *next;
g_signal_emit (surface, surface_signals[SURFACE_DESTROY], 0);
g_clear_object (&surface->role);
/* If we still have a window at the time of destruction, that means that
* the client is disconnecting, as the resources are destroyed in a random
* order. Simply destroy the window in this case. */
if (surface->window)
meta_wayland_surface_destroy_window (surface);
if (surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
if (surface->buffer_held)
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->buffer_ref.buffer);
g_clear_object (&surface->pending);
if (surface->opaque_region)
cairo_region_destroy (surface->opaque_region);
if (surface->input_region)
cairo_region_destroy (surface->input_region);
meta_wayland_compositor_destroy_frame_callbacks (compositor, surface);
g_hash_table_foreach (surface->outputs_to_destroy_notify_id, surface_output_disconnect_signal, surface);
g_hash_table_unref (surface->outputs_to_destroy_notify_id);
wl_list_for_each_safe (cb, next, &surface->pending_frame_callback_list, link)
wl_resource_destroy (cb->resource);
if (surface->resource)
wl_resource_set_user_data (surface->resource, NULL);
if (surface->wl_subsurface)
wl_resource_destroy (surface->wl_subsurface);
g_hash_table_destroy (surface->shortcut_inhibited_seats);
g_object_unref (surface);
meta_wayland_compositor_repick (compositor);
}
static void
window_position_changed (MetaWindow *window,
MetaWaylandSurface *surface)
{
meta_wayland_surface_update_outputs_recursively (surface);
}
static void
window_actor_effects_completed (MetaWindowActor *window_actor,
MetaWaylandSurface *surface)
{
meta_wayland_surface_update_outputs_recursively (surface);
}
MetaWaylandSurface *
meta_wayland_surface_create (MetaWaylandCompositor *compositor,
struct wl_client *client,
struct wl_resource *compositor_resource,
guint32 id)
{
MetaWaylandSurface *surface = g_object_new (META_TYPE_WAYLAND_SURFACE, NULL);
surface->compositor = compositor;
surface->scale = 1;
surface->resource = wl_resource_create (client, &wl_surface_interface, wl_resource_get_version (compositor_resource), id);
wl_resource_set_implementation (surface->resource, &meta_wayland_wl_surface_interface, surface, wl_surface_destructor);
wl_list_init (&surface->pending_frame_callback_list);
sync_drag_dest_funcs (surface);
surface->outputs_to_destroy_notify_id = g_hash_table_new (NULL, NULL);
surface->shortcut_inhibited_seats = g_hash_table_new (NULL, NULL);
meta_wayland_compositor_notify_surface_id (compositor, id, surface);
return surface;
}
gboolean
meta_wayland_surface_begin_grab_op (MetaWaylandSurface *surface,
MetaWaylandSeat *seat,
MetaGrabOp grab_op,
gfloat x,
gfloat y)
{
MetaWindow *window = surface->window;
if (grab_op == META_GRAB_OP_NONE)
return FALSE;
/* This is an input driven operation so we set frame_action to
constrain it in the same way as it would be if the window was
being moved/resized via a SSD event. */
return meta_display_begin_grab_op (window->display,
window->screen,
window,
grab_op,
TRUE, /* pointer_already_grabbed */
TRUE, /* frame_action */
1, /* button. XXX? */
0, /* modmask */
meta_display_get_current_time_roundtrip (window->display),
x, y);
}
void
meta_wayland_shell_init (MetaWaylandCompositor *compositor)
{
meta_wayland_xdg_shell_init (compositor);
meta_wayland_legacy_xdg_shell_init (compositor);
meta_wayland_wl_shell_init (compositor);
meta_wayland_gtk_shell_init (compositor);
}
void
meta_wayland_surface_configure_notify (MetaWaylandSurface *surface,
int new_x,
int new_y,
int new_width,
int new_height,
MetaWaylandSerial *sent_serial)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
g_signal_emit (surface, surface_signals[SURFACE_CONFIGURE], 0);
meta_wayland_shell_surface_configure (shell_surface,
new_x, new_y,
new_width, new_height,
sent_serial);
}
void
meta_wayland_surface_ping (MetaWaylandSurface *surface,
guint32 serial)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_ping (shell_surface, serial);
}
void
meta_wayland_surface_delete (MetaWaylandSurface *surface)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_close (shell_surface);
}
void
meta_wayland_surface_window_managed (MetaWaylandSurface *surface,
MetaWindow *window)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_managed (shell_surface, window);
}
void
meta_wayland_surface_drag_dest_focus_in (MetaWaylandSurface *surface,
MetaWaylandDataOffer *offer)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->focus_in (data_device, surface, offer);
}
void
meta_wayland_surface_drag_dest_motion (MetaWaylandSurface *surface,
const ClutterEvent *event)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->motion (data_device, surface, event);
}
void
meta_wayland_surface_drag_dest_focus_out (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->focus_out (data_device, surface);
}
void
meta_wayland_surface_drag_dest_drop (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->drop (data_device, surface);
}
void
meta_wayland_surface_drag_dest_update (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->update (data_device, surface);
}
MetaWaylandSurface *
meta_wayland_surface_get_toplevel (MetaWaylandSurface *surface)
{
if (surface->role)
return meta_wayland_surface_role_get_toplevel (surface->role);
else
return NULL;
}
MetaWindow *
meta_wayland_surface_get_toplevel_window (MetaWaylandSurface *surface)
{
MetaWaylandSurface *toplevel;
toplevel = meta_wayland_surface_get_toplevel (surface);
if (toplevel)
return toplevel->window;
else
return NULL;
}
void
meta_wayland_surface_get_relative_coordinates (MetaWaylandSurface *surface,
float abs_x,
float abs_y,
float *sx,
float *sy)
{
/* Using clutter API to transform coordinates is only accurate right
* after a clutter layout pass but this function is used e.g. to
* deliver pointer motion events which can happen at any time. This
* isn't a problem for wayland clients since they don't control
* their position, but X clients do and we'd be sending outdated
* coordinates if a client is moving a window in response to motion
* events.
*/
if (surface->window &&
surface->window->client_type == META_WINDOW_CLIENT_TYPE_X11)
{
MetaRectangle window_rect;
meta_window_get_buffer_rect (surface->window, &window_rect);
*sx = abs_x - window_rect.x;
*sy = abs_y - window_rect.y;
}
else
{
ClutterActor *actor =
CLUTTER_ACTOR (meta_surface_actor_get_texture (meta_wayland_surface_get_actor (surface)));
clutter_actor_transform_stage_point (actor, abs_x, abs_y, sx, sy);
*sx /= surface->scale;
*sy /= surface->scale;
}
}
void
meta_wayland_surface_get_absolute_coordinates (MetaWaylandSurface *surface,
float sx,
float sy,
float *x,
float *y)
{
ClutterActor *actor =
CLUTTER_ACTOR (meta_surface_actor_get_texture (meta_wayland_surface_get_actor (surface)));
ClutterVertex sv = {
.x = sx * surface->scale,
.y = sy * surface->scale,
};
ClutterVertex v = { 0 };
clutter_actor_apply_relative_transform_to_point (actor, NULL, &sv, &v);
*x = v.x;
*y = v.y;
}
static void
meta_wayland_surface_init (MetaWaylandSurface *surface)
{
surface->pending = g_object_new (META_TYPE_WAYLAND_PENDING_STATE, NULL);
g_signal_connect (surface, "geometry-changed",
G_CALLBACK (meta_wayland_surface_update_outputs_recursively),
NULL);
}
static void
meta_wayland_surface_class_init (MetaWaylandSurfaceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
surface_signals[SURFACE_DESTROY] =
g_signal_new ("destroy",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_UNMAPPED] =
g_signal_new ("unmapped",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_CONFIGURE] =
g_signal_new ("configure",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_SHORTCUTS_INHIBITED] =
g_signal_new ("shortcuts-inhibited",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_SHORTCUTS_RESTORED] =
g_signal_new ("shortcuts-restored",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_GEOMETRY_CHANGED] =
g_signal_new ("geometry-changed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
meta_wayland_surface_role_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (object);
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (surface_role);
switch (prop_id)
{
case SURFACE_ROLE_PROP_SURFACE:
priv->surface = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_wayland_surface_role_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (object);
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (surface_role);
switch (prop_id)
{
case SURFACE_ROLE_PROP_SURFACE:
g_value_set_object (value, priv->surface);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_wayland_surface_role_init (MetaWaylandSurfaceRole *role)
{
}
static void
meta_wayland_surface_role_class_init (MetaWaylandSurfaceRoleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = meta_wayland_surface_role_set_property;
object_class->get_property = meta_wayland_surface_role_get_property;
g_object_class_install_property (object_class,
SURFACE_ROLE_PROP_SURFACE,
g_param_spec_object ("surface",
"MetaWaylandSurface",
"The MetaWaylandSurface instance",
META_TYPE_WAYLAND_SURFACE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
static void
meta_wayland_surface_role_assigned (MetaWaylandSurfaceRole *surface_role)
{
META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role)->assigned (surface_role);
}
static void
meta_wayland_surface_role_pre_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->pre_commit)
klass->pre_commit (surface_role, pending);
}
static void
meta_wayland_surface_role_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending)
{
META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role)->commit (surface_role,
pending);
}
static gboolean
meta_wayland_surface_role_is_on_logical_monitor (MetaWaylandSurfaceRole *surface_role,
MetaLogicalMonitor *logical_monitor)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->is_on_logical_monitor)
return klass->is_on_logical_monitor (surface_role, logical_monitor);
else
return FALSE;
}
static MetaWaylandSurface *
meta_wayland_surface_role_get_toplevel (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->get_toplevel)
return klass->get_toplevel (surface_role);
else
return NULL;
}
MetaWaylandSurface *
meta_wayland_surface_role_get_surface (MetaWaylandSurfaceRole *role)
{
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (role);
return priv->surface;
}
void
meta_wayland_surface_queue_pending_frame_callbacks (MetaWaylandSurface *surface)
{
wl_list_insert_list (&surface->compositor->frame_callbacks,
&surface->pending_frame_callback_list);
wl_list_init (&surface->pending_frame_callback_list);
}
static void
default_role_assigned (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurface *surface =
meta_wayland_surface_role_get_surface (surface_role);
meta_wayland_surface_queue_pending_frame_callbacks (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);
surface_role_class->assigned = default_role_assigned;
surface_role_class->commit = dnd_surface_commit;
}
cairo_region_t *
meta_wayland_surface_calculate_input_region (MetaWaylandSurface *surface)
{
cairo_region_t *region;
cairo_rectangle_int_t buffer_rect;
CoglTexture *texture;
if (!surface->buffer_ref.buffer)
return NULL;
texture = surface->buffer_ref.buffer->texture;
buffer_rect = (cairo_rectangle_int_t) {
.width = cogl_texture_get_width (texture) / surface->scale,
.height = cogl_texture_get_height (texture) / surface->scale,
};
region = cairo_region_create_rectangle (&buffer_rect);
if (surface->input_region)
cairo_region_intersect (region, surface->input_region);
return region;
}
void
meta_wayland_surface_inhibit_shortcuts (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
g_hash_table_add (surface->shortcut_inhibited_seats, seat);
g_signal_emit (surface, surface_signals[SURFACE_SHORTCUTS_INHIBITED], 0);
}
void
meta_wayland_surface_restore_shortcuts (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
g_signal_emit (surface, surface_signals[SURFACE_SHORTCUTS_RESTORED], 0);
g_hash_table_remove (surface->shortcut_inhibited_seats, seat);
}
gboolean
meta_wayland_surface_is_shortcuts_inhibited (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
if (surface->shortcut_inhibited_seats == NULL)
return FALSE;
return g_hash_table_contains (surface->shortcut_inhibited_seats, seat);
}
MetaSurfaceActor *
meta_wayland_surface_get_actor (MetaWaylandSurface *surface)
{
if (!surface->role || !META_IS_WAYLAND_ACTOR_SURFACE (surface->role))
return NULL;
return meta_wayland_actor_surface_get_actor (META_WAYLAND_ACTOR_SURFACE (surface->role));
}
void
meta_wayland_surface_notify_geometry_changed (MetaWaylandSurface *surface)
{
g_signal_emit (surface, surface_signals[SURFACE_GEOMETRY_CHANGED], 0);
}
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