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mutter/src/wayland/meta-wayland-surface.c
Robert Mader ba7af4f7d3 wayland/surface: Add support for wp_viewporter 
This adds the required bits to wayland surfaces and ties them up
to the compositor parts.

It is based on and very similar in nature to buffer transforms.

From the specification:
> The global interface exposing surface cropping and scaling
> capabilities is used to instantiate an interface extension for a
> wl_surface object. This extended interface will then allow cropping
> and scaling the surface contents, effectively disconnecting the
> direct relationship between the buffer and the surface size.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/323
2019-02-06 12:24:03 +00:00

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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 "wayland/meta-wayland-surface.h"
#include <gobject/gvaluecollector.h>
#include <wayland-server.h>
#include "backends/meta-cursor-tracker-private.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 "compositor/meta-surface-actor-wayland.h"
#include "compositor/meta-surface-actor.h"
#include "compositor/meta-window-actor-private.h"
#include "compositor/region-utils.h"
#include "core/display-private.h"
#include "core/window-private.h"
#include "wayland/meta-wayland-actor-surface.h"
#include "wayland/meta-wayland-buffer.h"
#include "wayland/meta-wayland-data-device.h"
#include "wayland/meta-wayland-gtk-shell.h"
#include "wayland/meta-wayland-keyboard.h"
#include "wayland/meta-wayland-legacy-xdg-shell.h"
#include "wayland/meta-wayland-outputs.h"
#include "wayland/meta-wayland-pointer.h"
#include "wayland/meta-wayland-private.h"
#include "wayland/meta-wayland-region.h"
#include "wayland/meta-wayland-seat.h"
#include "wayland/meta-wayland-subsurface.h"
#include "wayland/meta-wayland-viewporter.h"
#include "wayland/meta-wayland-wl-shell.h"
#include "wayland/meta-wayland-xdg-shell.h"
#include "wayland/meta-window-wayland.h"
#include "wayland/meta-xwayland-private.h"
#include "wayland/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);
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 int
get_buffer_width (MetaWaylandSurface *surface)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
if (buffer)
{
CoglTexture *texture = meta_wayland_buffer_get_texture (buffer);
return cogl_texture_get_width (texture);
}
else
{
return 0;
}
}
static int
get_buffer_height (MetaWaylandSurface *surface)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
if (buffer)
{
CoglTexture *texture = meta_wayland_buffer_get_texture (buffer);
return cogl_texture_get_height (texture);
}
else
{
return 0;
}
}
static void
surface_process_damage (MetaWaylandSurface *surface,
cairo_region_t *surface_region,
cairo_region_t *buffer_region)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
cairo_rectangle_int_t surface_rect;
cairo_rectangle_int_t buffer_rect;
cairo_region_t *scaled_region;
cairo_region_t *transformed_region;
cairo_region_t *viewport_region;
ClutterRect src_rect;
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;
buffer_rect = (cairo_rectangle_int_t) {
.width = get_buffer_width (surface),
.height = get_buffer_height (surface),
};
/* 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). */
surface_rect = (cairo_rectangle_int_t) {
.width = meta_wayland_surface_get_width (surface),
.height = meta_wayland_surface_get_height (surface),
};
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);
if (surface->viewport.has_src_rect)
{
src_rect = (ClutterRect) {
.origin.x = surface->viewport.src_rect.origin.x * surface->scale,
.origin.y = surface->viewport.src_rect.origin.y * surface->scale,
.size.width = surface->viewport.src_rect.size.width * surface->scale,
.size.height = surface->viewport.src_rect.size.height * surface->scale
};
}
else
{
src_rect = (ClutterRect) {
.size.width = surface_rect.width * surface->scale,
.size.height = surface_rect.height * surface->scale,
};
}
viewport_region = meta_region_crop_and_scale (scaled_region,
&src_rect,
surface_rect.width *
surface->scale,
surface_rect.height *
surface->scale);
transformed_region = meta_region_transform (viewport_region,
surface->buffer_transform,
buffer_rect.width,
buffer_rect.height);
/* Now add the scaled, cropped and transformed damage region to the
* buffer damage. Buffer damage is already in the correct coordinate space. */
cairo_region_union (buffer_region, transformed_region);
cairo_region_intersect_rectangle (buffer_region, &buffer_rect);
/* First update the buffer. */
meta_wayland_buffer_process_damage (buffer, buffer_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 (buffer_region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (buffer_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 (viewport_region);
cairo_region_destroy (scaled_region);
cairo_region_destroy (transformed_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);
}
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;
state->has_new_buffer_transform = FALSE;
state->has_new_viewport_src_rect = FALSE;
state->has_new_viewport_dst_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 (from->has_new_buffer_transform)
{
to->buffer_transform = from->buffer_transform;
to->has_new_buffer_transform = TRUE;
}
if (from->has_new_viewport_src_rect)
{
to->viewport_src_rect.origin.x = from->viewport_src_rect.origin.x;
to->viewport_src_rect.origin.y = from->viewport_src_rect.origin.y;
to->viewport_src_rect.size.width = from->viewport_src_rect.size.width;
to->viewport_src_rect.size.height = from->viewport_src_rect.size.height;
to->has_new_viewport_src_rect = TRUE;
}
if (from->has_new_viewport_dst_size)
{
to->viewport_dst_width = from->viewport_dst_width;
to->viewport_dst_height = from->viewport_dst_height;
to->has_new_viewport_dst_size = TRUE;
}
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_cache_pending_frame_callbacks (MetaWaylandSurface *surface,
MetaWaylandPendingState *pending)
{
wl_list_insert_list (&surface->pending_frame_callback_list,
&pending->frame_callback_list);
wl_list_init (&pending->frame_callback_list);
}
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 (pending->has_new_buffer_transform)
surface->buffer_transform = pending->buffer_transform;
if (pending->has_new_viewport_src_rect)
{
surface->viewport.src_rect.origin.x = pending->viewport_src_rect.origin.x;
surface->viewport.src_rect.origin.y = pending->viewport_src_rect.origin.y;
surface->viewport.src_rect.size.width = pending->viewport_src_rect.size.width;
surface->viewport.src_rect.size.height = pending->viewport_src_rect.size.height;
surface->viewport.has_src_rect = surface->viewport.src_rect.size.width > 0;
}
if (pending->has_new_viewport_dst_size)
{
surface->viewport.dst_width = pending->viewport_dst_width;
surface->viewport.dst_height = pending->viewport_dst_height;
surface->viewport.has_dst_size = surface->viewport.dst_width > 0;
}
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
{
meta_wayland_surface_cache_pending_frame_callbacks (surface, pending);
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 (surface->pending->buffer &&
!meta_wayland_buffer_is_realized (surface->pending->buffer))
meta_wayland_buffer_realize (surface->pending->buffer);
/*
* 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 MetaMonitorTransform
transform_from_wl_output_transform (int32_t transform_value)
{
enum wl_output_transform transform = transform_value;
switch (transform)
{
case WL_OUTPUT_TRANSFORM_NORMAL:
return META_MONITOR_TRANSFORM_NORMAL;
case WL_OUTPUT_TRANSFORM_90:
return META_MONITOR_TRANSFORM_90;
case WL_OUTPUT_TRANSFORM_180:
return META_MONITOR_TRANSFORM_180;
case WL_OUTPUT_TRANSFORM_270:
return META_MONITOR_TRANSFORM_270;
case WL_OUTPUT_TRANSFORM_FLIPPED:
return META_MONITOR_TRANSFORM_FLIPPED;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
return META_MONITOR_TRANSFORM_FLIPPED_90;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
return META_MONITOR_TRANSFORM_FLIPPED_180;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
return META_MONITOR_TRANSFORM_FLIPPED_270;
default:
return -1;
}
}
static void
wl_surface_set_buffer_transform (struct wl_client *client,
struct wl_resource *resource,
int32_t transform)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
MetaMonitorTransform buffer_transform;
buffer_transform = transform_from_wl_output_transform (transform);
if (buffer_transform == -1)
{
wl_resource_post_error (resource,
WL_SURFACE_ERROR_INVALID_TRANSFORM,
"Trying to set invalid buffer_transform of %d\n",
transform);
return;
}
surface->pending->buffer_transform = buffer_transform;
surface->pending->has_new_buffer_transform = TRUE;
}
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;
ClutterActor *actor;
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;
actor = CLUTTER_ACTOR (meta_wayland_surface_get_actor (surface));
if (actor)
clutter_actor_set_reactive (actor, !!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,
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_init_gtk_shell (compositor);
meta_wayland_init_viewporter (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);
}
cairo_region_t *
meta_wayland_surface_calculate_input_region (MetaWaylandSurface *surface)
{
cairo_region_t *region;
cairo_rectangle_int_t buffer_rect;
if (!surface->buffer_ref.buffer)
return NULL;
buffer_rect = (cairo_rectangle_int_t) {
.width = meta_wayland_surface_get_width (surface),
.height = meta_wayland_surface_get_height (surface),
};
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);
}
int
meta_wayland_surface_get_width (MetaWaylandSurface *surface)
{
if (surface->viewport.has_dst_size)
{
return surface->viewport.dst_width;
}
else if (surface->viewport.has_src_rect)
{
return ceilf (surface->viewport.src_rect.size.width);
}
else
{
int width;
if (meta_monitor_transform_is_rotated (surface->buffer_transform))
width = get_buffer_height (surface);
else
width = get_buffer_width (surface);
return width / surface->scale;
}
}
int
meta_wayland_surface_get_height (MetaWaylandSurface *surface)
{
if (surface->viewport.has_dst_size)
{
return surface->viewport.dst_height;
}
else if (surface->viewport.has_src_rect)
{
return ceilf (surface->viewport.src_rect.size.height);
}
else
{
int height;
if (meta_monitor_transform_is_rotated (surface->buffer_transform))
height = get_buffer_width (surface);
else
height = get_buffer_height (surface);
return height / surface->scale;
}
}
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