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gtk2/gdk/wayland/gdkdisplay-wayland.c
Matthias Clasen ea66300cf9 wayland: Make display closing work 
The code in _gdk_wayland_window_dispose was not safe against
being called twice - it would call g_hash_table_destroy twice
on the known_globals hash table, the second time operating on
freed memory. It was also leaking the list of async_roundtrips.

After fixing both of these issues, the displayclose testcase
now works on Wayland.
2015-08-28 16:15:26 -04:00

1127 lines
33 KiB
C
Raw Blame History

/*
* Copyright © 2010 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <glib.h>
#include "gdkwayland.h"
#include "gdkdisplay.h"
#include "gdkdisplay-wayland.h"
#include "gdkscreen.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicemanager.h"
#include "gdkkeysprivate.h"
#include "gdkprivate-wayland.h"
#include "gdkglcontext-wayland.h"
#include "pointer-gestures-client-protocol.h"
/**
* SECTION:wayland_interaction
* @Short_description: Wayland backend-specific functions
* @Title: Wayland Interaction
*
* The functions in this section are specific to the GDK Wayland backend.
* To use them, you need to include the `<gdk/gdkwayland.h>` header and use
* the Wayland-specific pkg-config files to build your application (either
* `gdk-wayland-3.0` or `gtk+-wayland-3.0`).
*
* To make your code compile with other GDK backends, guard backend-specific
* calls by an ifdef as follows. Since GDK may be built with multiple
* backends, you should also check for the backend that is in use (e.g. by
* using the GDK_IS_WAYLAND_DISPLAY() macro).
* |[<!-- language="C" -->
* #ifdef GDK_WINDOWING_WAYLAND
* if (GDK_IS_WAYLAND_DISPLAY (display))
* {
* // make Wayland-specific calls here
* }
* else
* #endif
* #ifdef GDK_WINDOWING_X11
* if (GDK_IS_X11_DISPLAY (display))
* {
* // make X11-specific calls here
* }
* else
* #endif
* g_error ("Unsupported GDK backend");
* ]|
*/
static void _gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *wayland_display);
G_DEFINE_TYPE (GdkWaylandDisplay, gdk_wayland_display, GDK_TYPE_DISPLAY)
static void
async_roundtrip_callback (void *data,
struct wl_callback *callback,
uint32_t time)
{
GdkWaylandDisplay *display_wayland = data;
display_wayland->async_roundtrips =
g_list_remove (display_wayland->async_roundtrips, callback);
wl_callback_destroy (callback);
}
static const struct wl_callback_listener async_roundtrip_listener = {
async_roundtrip_callback
};
static void
_gdk_wayland_display_async_roundtrip (GdkWaylandDisplay *display_wayland)
{
struct wl_callback *callback;
callback = wl_display_sync (display_wayland->wl_display);
wl_callback_add_listener (callback,
&async_roundtrip_listener,
display_wayland);
display_wayland->async_roundtrips =
g_list_append (display_wayland->async_roundtrips, callback);
}
static void
gdk_input_init (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland;
GdkDeviceManager *device_manager;
GdkDevice *device;
GList *list, *l;
display_wayland = GDK_WAYLAND_DISPLAY (display);
device_manager = gdk_display_get_device_manager (display);
/* For backwards compatibility, just add
* floating devices that are not keyboards.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
for (l = list; l; l = l->next)
{
device = l->data;
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
continue;
display_wayland->input_devices = g_list_prepend (display_wayland->input_devices, l->data);
}
g_list_free (list);
/* Now set "core" pointer to the first
* master device that is a pointer.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
for (l = list; l; l = l->next)
{
device = l->data;
if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
continue;
display->core_pointer = device;
break;
}
/* Add the core pointer to the devices list */
display_wayland->input_devices = g_list_prepend (display_wayland->input_devices, display->core_pointer);
g_list_free (list);
}
static void
xdg_shell_ping (void *data,
struct xdg_shell *xdg_shell,
uint32_t serial)
{
GdkWaylandDisplay *wayland_display = data;
_gdk_wayland_display_update_serial (wayland_display, serial);
GDK_NOTE (EVENTS,
g_message ("ping, shell %p, serial %u\n", xdg_shell, serial));
xdg_shell_pong (xdg_shell, serial);
}
static const struct xdg_shell_listener xdg_shell_listener = {
xdg_shell_ping,
};
static gboolean
is_known_global (gpointer key, gpointer value, gpointer user_data)
{
const char *required_global = user_data;
const char *known_global = value;
return g_strcmp0 (required_global, known_global) == 0;
}
static gboolean
has_required_globals (GdkWaylandDisplay *display_wayland,
const char *required_globals[])
{
int i = 0;
while (required_globals[i])
{
if (g_hash_table_find (display_wayland->known_globals,
is_known_global,
(gpointer)required_globals[i]) == NULL)
return FALSE;
i++;
}
return TRUE;
}
typedef struct _OnHasGlobalsClosure OnHasGlobalsClosure;
typedef void (*HasGlobalsCallback) (GdkWaylandDisplay *display_wayland,
OnHasGlobalsClosure *closure);
struct _OnHasGlobalsClosure
{
HasGlobalsCallback handler;
const char **required_globals;
};
static void
process_on_globals_closures (GdkWaylandDisplay *display_wayland)
{
GList *iter;
iter = display_wayland->on_has_globals_closures;
while (iter != NULL)
{
GList *next = iter->next;
OnHasGlobalsClosure *closure = iter->data;
if (has_required_globals (display_wayland,
closure->required_globals))
{
closure->handler (display_wayland, closure);
g_free (closure);
display_wayland->on_has_globals_closures =
g_list_delete_link (display_wayland->on_has_globals_closures, iter);
}
iter = next;
}
}
typedef struct
{
OnHasGlobalsClosure base;
uint32_t id;
uint32_t version;
} SeatAddedClosure;
static void
_gdk_wayland_display_add_seat (GdkWaylandDisplay *display_wayland,
uint32_t id,
uint32_t version)
{
GdkDisplay *gdk_display = GDK_DISPLAY_OBJECT (display_wayland);
struct wl_seat *seat;
seat = wl_registry_bind (display_wayland->wl_registry,
id, &wl_seat_interface, MIN (version, 4));
_gdk_wayland_device_manager_add_seat (gdk_display->device_manager,
id, seat);
_gdk_wayland_display_async_roundtrip (display_wayland);
}
static void
seat_added_closure_run (GdkWaylandDisplay *display_wayland,
OnHasGlobalsClosure *closure)
{
SeatAddedClosure *seat_added_closure = (SeatAddedClosure*)closure;
_gdk_wayland_display_add_seat (display_wayland,
seat_added_closure->id,
seat_added_closure->version);
}
static void
postpone_on_globals_closure (GdkWaylandDisplay *display_wayland,
OnHasGlobalsClosure *closure)
{
display_wayland->on_has_globals_closures =
g_list_append (display_wayland->on_has_globals_closures, closure);
}
static void
gdk_registry_handle_global (void *data,
struct wl_registry *registry,
uint32_t id,
const char *interface,
uint32_t version)
{
GdkWaylandDisplay *display_wayland = data;
struct wl_output *output;
gboolean handled = TRUE;
GDK_NOTE (MISC,
g_message ("add global %u, interface %s, version %u", id, interface, version));
if (strcmp (interface, "wl_compositor") == 0)
{
display_wayland->compositor =
wl_registry_bind (display_wayland->wl_registry, id, &wl_compositor_interface, MIN (version, 3));
display_wayland->compositor_version = MIN (version, 3);
}
else if (strcmp (interface, "wl_shm") == 0)
{
display_wayland->shm =
wl_registry_bind (display_wayland->wl_registry, id, &wl_shm_interface, 1);
}
else if (strcmp (interface, "xdg_shell") == 0)
{
display_wayland->xdg_shell =
wl_registry_bind (display_wayland->wl_registry, id, &xdg_shell_interface, 1);
xdg_shell_use_unstable_version (display_wayland->xdg_shell, XDG_SHELL_VERSION_CURRENT);
xdg_shell_add_listener (display_wayland->xdg_shell, &xdg_shell_listener, display_wayland);
}
else if (strcmp (interface, "gtk_shell") == 0)
{
if (version == SUPPORTED_GTK_SHELL_VERSION)
{
display_wayland->gtk_shell =
wl_registry_bind(display_wayland->wl_registry, id,
&gtk_shell_interface, SUPPORTED_GTK_SHELL_VERSION);
_gdk_wayland_screen_set_has_gtk_shell (display_wayland->screen);
}
}
else if (strcmp (interface, "wl_output") == 0)
{
output =
wl_registry_bind (display_wayland->wl_registry, id, &wl_output_interface, MIN (version, 2));
_gdk_wayland_screen_add_output (display_wayland->screen, id, output, MIN (version, 2));
_gdk_wayland_display_async_roundtrip (display_wayland);
}
else if (strcmp (interface, "wl_seat") == 0)
{
static const char *required_device_manager_globals[] = {
"wl_compositor",
"wl_data_device_manager",
NULL
};
if (has_required_globals (display_wayland,
required_device_manager_globals))
_gdk_wayland_display_add_seat (display_wayland, id, version);
else
{
SeatAddedClosure *closure;
closure = g_new0 (SeatAddedClosure, 1);
closure->base.handler = seat_added_closure_run;
closure->base.required_globals = required_device_manager_globals;
closure->id = id;
closure->version = version;
postpone_on_globals_closure (display_wayland, &closure->base);
}
}
else if (strcmp (interface, "wl_data_device_manager") == 0)
{
display_wayland->data_device_manager =
wl_registry_bind (display_wayland->wl_registry, id, &wl_data_device_manager_interface, 1);
}
else if (strcmp (interface, "wl_subcompositor") == 0)
{
display_wayland->subcompositor =
wl_registry_bind (display_wayland->wl_registry, id, &wl_subcompositor_interface, 1);
}
else if (strcmp (interface, "_wl_pointer_gestures") == 0 &&
version == GDK__WL_POINTER_GESTURES_VERSION)
{
display_wayland->pointer_gestures =
wl_registry_bind (display_wayland->wl_registry,
id, &_wl_pointer_gestures_interface, version);
}
else
handled = FALSE;
if (handled)
g_hash_table_insert (display_wayland->known_globals,
GUINT_TO_POINTER (id), g_strdup (interface));
process_on_globals_closures (display_wayland);
}
static void
gdk_registry_handle_global_remove (void *data,
struct wl_registry *registry,
uint32_t id)
{
GdkWaylandDisplay *display_wayland = data;
GdkDisplay *display = GDK_DISPLAY (display_wayland);
GDK_NOTE (MISC, g_message ("remove global %u", id));
_gdk_wayland_device_manager_remove_seat (display->device_manager, id);
_gdk_wayland_screen_remove_output (display_wayland->screen, id);
g_hash_table_remove (display_wayland->known_globals, GUINT_TO_POINTER (id));
/* FIXME: the object needs to be destroyed here, we're leaking */
}
static const struct wl_registry_listener registry_listener = {
gdk_registry_handle_global,
gdk_registry_handle_global_remove
};
static void
log_handler (const char *format, va_list args)
{
g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format, args);
}
static void
load_cursor_theme_closure_run (GdkWaylandDisplay *display_wayland,
OnHasGlobalsClosure *closure)
{
_gdk_wayland_display_load_cursor_theme (display_wayland);
}
static void
_gdk_wayland_display_prepare_cursor_themes (GdkWaylandDisplay *display_wayland)
{
OnHasGlobalsClosure *closure;
static const char *required_cursor_theme_globals[] = {
"wl_shm",
};
closure = g_new0 (OnHasGlobalsClosure, 1);
closure->handler = load_cursor_theme_closure_run;
closure->required_globals = required_cursor_theme_globals;
postpone_on_globals_closure (display_wayland, closure);
}
GdkDisplay *
_gdk_wayland_display_open (const gchar *display_name)
{
struct wl_display *wl_display;
GdkDisplay *display;
GdkWaylandDisplay *display_wayland;
GDK_NOTE (MISC, g_message ("opening display %s", display_name ? display_name : ""));
/* If this variable is unset then wayland initialisation will surely
* fail, logging a fatal error in the process. Save ourselves from
* that.
*/
if (g_getenv ("XDG_RUNTIME_DIR") == NULL)
return NULL;
wl_log_set_handler_client (log_handler);
wl_display = wl_display_connect (display_name);
if (!wl_display)
return NULL;
display = g_object_new (GDK_TYPE_WAYLAND_DISPLAY, NULL);
display->device_manager = _gdk_wayland_device_manager_new (display);
display_wayland = GDK_WAYLAND_DISPLAY (display);
display_wayland->wl_display = wl_display;
display_wayland->screen = _gdk_wayland_screen_new (display);
display_wayland->event_source = _gdk_wayland_display_event_source_new (display);
display_wayland->known_globals =
g_hash_table_new_full (NULL, NULL, NULL, g_free);
_gdk_wayland_display_init_cursors (display_wayland);
_gdk_wayland_display_prepare_cursor_themes (display_wayland);
display_wayland->wl_registry = wl_display_get_registry (display_wayland->wl_display);
wl_registry_add_listener (display_wayland->wl_registry, &registry_listener, display_wayland);
_gdk_wayland_display_async_roundtrip (display_wayland);
/* Wait for initializing to complete. This means waiting for all
* asynchrounous roundtrips that were triggered during initial roundtrip. */
while (g_list_length (display_wayland->async_roundtrips) > 0)
{
if (wl_display_dispatch (display_wayland->wl_display) < 0)
{
g_object_unref (display);
return NULL;
}
}
gdk_input_init (display);
display_wayland->selection = gdk_wayland_selection_new ();
g_signal_emit_by_name (display, "opened");
return display;
}
static void
gdk_wayland_display_dispose (GObject *object)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (object);
g_list_foreach (display_wayland->input_devices,
(GFunc) g_object_run_dispose, NULL);
_gdk_screen_close (display_wayland->screen);
if (display_wayland->event_source)
{
g_source_destroy (display_wayland->event_source);
g_source_unref (display_wayland->event_source);
display_wayland->event_source = NULL;
}
if (display_wayland->selection)
{
gdk_wayland_selection_free (display_wayland->selection);
display_wayland->selection = NULL;
}
g_list_free_full (display_wayland->async_roundtrips, (GDestroyNotify) wl_callback_destroy);
if (display_wayland->known_globals)
{
g_hash_table_destroy (display_wayland->known_globals);
display_wayland->known_globals = NULL;
}
g_list_free_full (display_wayland->on_has_globals_closures, g_free);
G_OBJECT_CLASS (gdk_wayland_display_parent_class)->dispose (object);
}
static void
gdk_wayland_display_finalize (GObject *object)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (object);
_gdk_wayland_display_finalize_cursors (display_wayland);
/* input GdkDevice list */
g_list_free_full (display_wayland->input_devices, g_object_unref);
g_object_unref (display_wayland->screen);
g_free (display_wayland->startup_notification_id);
G_OBJECT_CLASS (gdk_wayland_display_parent_class)->finalize (object);
}
static const gchar *
gdk_wayland_display_get_name (GdkDisplay *display)
{
return "Wayland";
}
static GdkScreen *
gdk_wayland_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_WAYLAND_DISPLAY (display)->screen;
}
static void
gdk_wayland_display_beep (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
}
static void
gdk_wayland_display_sync (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_wayland = GDK_WAYLAND_DISPLAY (display);
wl_display_roundtrip (display_wayland->wl_display);
}
static void
gdk_wayland_display_flush (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
if (!display->closed)
wl_display_flush (GDK_WAYLAND_DISPLAY (display)->wl_display);
}
static gboolean
gdk_wayland_display_has_pending (GdkDisplay *display)
{
return FALSE;
}
static GdkWindow *
gdk_wayland_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return NULL;
}
static gboolean
gdk_wayland_display_supports_selection_notification (GdkDisplay *display)
{
return FALSE;
}
static gboolean
gdk_wayland_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
return FALSE;
}
static gboolean
gdk_wayland_display_supports_clipboard_persistence (GdkDisplay *display)
{
return FALSE;
}
static void
gdk_wayland_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
}
static gboolean
gdk_wayland_display_supports_shapes (GdkDisplay *display)
{
return FALSE;
}
static gboolean
gdk_wayland_display_supports_input_shapes (GdkDisplay *display)
{
return TRUE;
}
static gboolean
gdk_wayland_display_supports_composite (GdkDisplay *display)
{
return FALSE;
}
static GList *
gdk_wayland_display_list_devices (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_WAYLAND_DISPLAY (display)->input_devices;
}
static void
gdk_wayland_display_before_process_all_updates (GdkDisplay *display)
{
}
static void
gdk_wayland_display_after_process_all_updates (GdkDisplay *display)
{
/* Post the damage here instead? */
}
static gulong
gdk_wayland_display_get_next_serial (GdkDisplay *display)
{
static gulong serial = 0;
return ++serial;
}
static void
gdk_wayland_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
}
static GdkKeymap *
_gdk_wayland_display_get_keymap (GdkDisplay *display)
{
GdkDeviceManager *device_manager;
GList *list, *l;
GdkDevice *core_keyboard = NULL;
static GdkKeymap *tmp_keymap = NULL;
device_manager = gdk_display_get_device_manager (display);
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
for (l = list; l; l = l->next)
{
GdkDevice *device;
device = l->data;
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
continue;
core_keyboard = device;
break;
}
g_list_free (list);
if (core_keyboard && tmp_keymap)
{
g_object_unref (tmp_keymap);
tmp_keymap = NULL;
}
if (core_keyboard)
return _gdk_wayland_device_get_keymap (core_keyboard);
if (!tmp_keymap)
tmp_keymap = _gdk_wayland_keymap_new ();
return tmp_keymap;
}
static void
gdk_wayland_display_push_error_trap (GdkDisplay *display)
{
}
static gint
gdk_wayland_display_pop_error_trap (GdkDisplay *display,
gboolean ignored)
{
return 0;
}
static void
gdk_wayland_display_class_init (GdkWaylandDisplayClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
object_class->dispose = gdk_wayland_display_dispose;
object_class->finalize = gdk_wayland_display_finalize;
display_class->window_type = gdk_wayland_window_get_type ();
display_class->get_name = gdk_wayland_display_get_name;
display_class->get_default_screen = gdk_wayland_display_get_default_screen;
display_class->beep = gdk_wayland_display_beep;
display_class->sync = gdk_wayland_display_sync;
display_class->flush = gdk_wayland_display_flush;
display_class->has_pending = gdk_wayland_display_has_pending;
display_class->queue_events = _gdk_wayland_display_queue_events;
display_class->get_default_group = gdk_wayland_display_get_default_group;
display_class->supports_selection_notification = gdk_wayland_display_supports_selection_notification;
display_class->request_selection_notification = gdk_wayland_display_request_selection_notification;
display_class->supports_clipboard_persistence = gdk_wayland_display_supports_clipboard_persistence;
display_class->store_clipboard = gdk_wayland_display_store_clipboard;
display_class->supports_shapes = gdk_wayland_display_supports_shapes;
display_class->supports_input_shapes = gdk_wayland_display_supports_input_shapes;
display_class->supports_composite = gdk_wayland_display_supports_composite;
display_class->list_devices = gdk_wayland_display_list_devices;
display_class->get_app_launch_context = _gdk_wayland_display_get_app_launch_context;
display_class->get_default_cursor_size = _gdk_wayland_display_get_default_cursor_size;
display_class->get_maximal_cursor_size = _gdk_wayland_display_get_maximal_cursor_size;
display_class->get_cursor_for_type = _gdk_wayland_display_get_cursor_for_type;
display_class->get_cursor_for_name = _gdk_wayland_display_get_cursor_for_name;
display_class->get_cursor_for_surface = _gdk_wayland_display_get_cursor_for_surface;
display_class->supports_cursor_alpha = _gdk_wayland_display_supports_cursor_alpha;
display_class->supports_cursor_color = _gdk_wayland_display_supports_cursor_color;
display_class->before_process_all_updates = gdk_wayland_display_before_process_all_updates;
display_class->after_process_all_updates = gdk_wayland_display_after_process_all_updates;
display_class->get_next_serial = gdk_wayland_display_get_next_serial;
display_class->notify_startup_complete = gdk_wayland_display_notify_startup_complete;
display_class->create_window_impl = _gdk_wayland_display_create_window_impl;
display_class->get_keymap = _gdk_wayland_display_get_keymap;
display_class->push_error_trap = gdk_wayland_display_push_error_trap;
display_class->pop_error_trap = gdk_wayland_display_pop_error_trap;
display_class->get_selection_owner = _gdk_wayland_display_get_selection_owner;
display_class->set_selection_owner = _gdk_wayland_display_set_selection_owner;
display_class->send_selection_notify = _gdk_wayland_display_send_selection_notify;
display_class->get_selection_property = _gdk_wayland_display_get_selection_property;
display_class->convert_selection = _gdk_wayland_display_convert_selection;
display_class->text_property_to_utf8_list = _gdk_wayland_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = _gdk_wayland_display_utf8_to_string_target;
display_class->make_gl_context_current = gdk_wayland_display_make_gl_context_current;
}
static void
gdk_wayland_display_init (GdkWaylandDisplay *display)
{
display->xkb_context = xkb_context_new (0);
}
void
gdk_wayland_display_set_cursor_theme (GdkDisplay *display,
const gchar *name,
gint size)
{
GdkWaylandDisplay *wayland_display = GDK_WAYLAND_DISPLAY(display);
struct wl_cursor_theme *theme;
int i;
g_assert (wayland_display);
g_assert (wayland_display->shm);
if (g_strcmp0 (name, wayland_display->cursor_theme_name) == 0 &&
wayland_display->cursor_theme_size == size)
return;
theme = wl_cursor_theme_load (name, size, wayland_display->shm);
if (theme == NULL)
{
g_warning ("Failed to load cursor theme %s\n", name);
return;
}
for (i = 0; i < GDK_WAYLAND_THEME_SCALES_COUNT; i++)
{
if (wayland_display->scaled_cursor_themes[i])
{
wl_cursor_theme_destroy (wayland_display->scaled_cursor_themes[i]);
wayland_display->scaled_cursor_themes[i] = NULL;
}
}
wayland_display->scaled_cursor_themes[0] = theme;
if (wayland_display->cursor_theme_name != NULL)
g_free (wayland_display->cursor_theme_name);
wayland_display->cursor_theme_name = g_strdup (name);
wayland_display->cursor_theme_size = size;
_gdk_wayland_display_update_cursors (wayland_display);
}
struct wl_cursor_theme *
_gdk_wayland_display_get_scaled_cursor_theme (GdkWaylandDisplay *wayland_display,
guint scale)
{
struct wl_cursor_theme *theme;
g_assert (wayland_display->cursor_theme_name);
g_assert (scale <= GDK_WAYLAND_MAX_THEME_SCALE);
g_assert (scale >= 1);
theme = wayland_display->scaled_cursor_themes[scale - 1];
if (!theme)
{
theme = wl_cursor_theme_load (wayland_display->cursor_theme_name,
wayland_display->cursor_theme_size * scale,
wayland_display->shm);
if (theme == NULL)
{
g_warning ("Failed to load cursor theme %s with scale %u\n",
wayland_display->cursor_theme_name, scale);
return NULL;
}
wayland_display->scaled_cursor_themes[scale - 1] = theme;
}
return theme;
}
static void
_gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *wayland_display)
{
guint size;
const gchar *name;
GValue v = G_VALUE_INIT;
g_assert (wayland_display);
g_assert (wayland_display->shm);
g_value_init (&v, G_TYPE_INT);
if (gdk_screen_get_setting (wayland_display->screen, "gtk-cursor-theme-size", &v))
size = g_value_get_int (&v);
else
size = 32;
g_value_unset (&v);
g_value_init (&v, G_TYPE_STRING);
if (gdk_screen_get_setting (wayland_display->screen, "gtk-cursor-theme-name", &v))
name = g_value_get_string (&v);
else
name = "default";
gdk_wayland_display_set_cursor_theme (GDK_DISPLAY (wayland_display), name, size);
g_value_unset (&v);
}
guint32
_gdk_wayland_display_get_serial (GdkWaylandDisplay *wayland_display)
{
return wayland_display->serial;
}
void
_gdk_wayland_display_update_serial (GdkWaylandDisplay *wayland_display,
guint32 serial)
{
wayland_display->serial = serial;
}
/**
* gdk_wayland_display_get_wl_display:
* @display: (type GdkWaylandDisplay): a #GdkDisplay
*
* Returns the Wayland wl_display of a #GdkDisplay.
*
* Returns: (transfer none): a Wayland wl_display
*
* Since: 3.8
*/
struct wl_display *
gdk_wayland_display_get_wl_display (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), NULL);
return GDK_WAYLAND_DISPLAY (display)->wl_display;
}
/**
* gdk_wayland_display_get_wl_compositor:
* @display: (type GdkWaylandDisplay): a #GdkDisplay
*
* Returns the Wayland global singleton compositor of a #GdkDisplay.
*
* Returns: (transfer none): a Wayland wl_compositor
*
* Since: 3.8
*/
struct wl_compositor *
gdk_wayland_display_get_wl_compositor (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), NULL);
return GDK_WAYLAND_DISPLAY (display)->compositor;
}
/**
* gdk_wayland_display_get_xdg_shell:
* @display: (type GdkWaylandDisplay): a #GdkDisplay
*
* Returns the Wayland global singleton shell of a #GdkDisplay.
*
* Returns: (transfer none): a Wayland xdg_shell
*
* Since: 3.8
*/
struct xdg_shell *
gdk_wayland_display_get_xdg_shell (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), NULL);
return GDK_WAYLAND_DISPLAY (display)->xdg_shell;
}
static const cairo_user_data_key_t gdk_wayland_cairo_key;
typedef struct _GdkWaylandCairoSurfaceData {
gpointer buf;
size_t buf_length;
struct wl_shm_pool *pool;
struct wl_buffer *buffer;
GdkWaylandDisplay *display;
uint32_t scale;
gboolean busy;
} GdkWaylandCairoSurfaceData;
static void
buffer_release_callback (void *_data,
struct wl_buffer *wl_buffer)
{
cairo_surface_t *surface = _data;
GdkWaylandCairoSurfaceData *data = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key);
data->busy = FALSE;
cairo_surface_destroy (surface);
}
static const struct wl_buffer_listener buffer_listener = {
buffer_release_callback
};
static struct wl_shm_pool *
create_shm_pool (struct wl_shm *shm,
int width,
int height,
size_t *buf_length,
void **data_out)
{
char filename[] = "/tmp/wayland-shm-XXXXXX";
struct wl_shm_pool *pool;
int fd, size, stride;
void *data;
fd = mkstemp (filename);
if (fd < 0)
{
g_critical (G_STRLOC ": Unable to create temporary file (%s): %s",
filename, g_strerror (errno));
return NULL;
}
stride = width * 4;
size = stride * height;
if (ftruncate (fd, size) < 0)
{
g_critical (G_STRLOC ": Truncating temporary file failed: %s",
g_strerror (errno));
close (fd);
return NULL;
}
data = mmap (NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
unlink (filename);
if (data == MAP_FAILED)
{
g_critical (G_STRLOC ": mmap'ping temporary file failed: %s",
g_strerror (errno));
close (fd);
return NULL;
}
pool = wl_shm_create_pool (shm, fd, size);
close (fd);
*data_out = data;
*buf_length = size;
return pool;
}
static void
gdk_wayland_cairo_surface_destroy (void *p)
{
GdkWaylandCairoSurfaceData *data = p;
if (data->buffer)
wl_buffer_destroy (data->buffer);
if (data->pool)
wl_shm_pool_destroy (data->pool);
munmap (data->buf, data->buf_length);
g_free (data);
}
cairo_surface_t *
_gdk_wayland_display_create_shm_surface (GdkWaylandDisplay *display,
int width,
int height,
guint scale)
{
GdkWaylandCairoSurfaceData *data;
cairo_surface_t *surface = NULL;
cairo_status_t status;
int stride;
data = g_new (GdkWaylandCairoSurfaceData, 1);
data->display = display;
data->buffer = NULL;
data->scale = scale;
data->busy = FALSE;
stride = width * 4;
data->pool = create_shm_pool (display->shm,
width*scale, height*scale,
&data->buf_length,
&data->buf);
surface = cairo_image_surface_create_for_data (data->buf,
CAIRO_FORMAT_ARGB32,
width*scale,
height*scale,
stride*scale);
data->buffer = wl_shm_pool_create_buffer (data->pool, 0,
width*scale, height*scale,
stride*scale, WL_SHM_FORMAT_ARGB8888);
wl_buffer_add_listener (data->buffer, &buffer_listener, surface);
cairo_surface_set_user_data (surface, &gdk_wayland_cairo_key,
data, gdk_wayland_cairo_surface_destroy);
cairo_surface_set_device_scale (surface, scale, scale);
status = cairo_surface_status (surface);
if (status != CAIRO_STATUS_SUCCESS)
{
g_critical (G_STRLOC ": Unable to create Cairo image surface: %s",
cairo_status_to_string (status));
}
return surface;
}
struct wl_buffer *
_gdk_wayland_shm_surface_get_wl_buffer (cairo_surface_t *surface)
{
GdkWaylandCairoSurfaceData *data = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key);
return data->buffer;
}
void
_gdk_wayland_shm_surface_set_busy (cairo_surface_t *surface)
{
GdkWaylandCairoSurfaceData *data = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key);
data->busy = TRUE;
cairo_surface_reference (surface);
}
gboolean
_gdk_wayland_shm_surface_get_busy (cairo_surface_t *surface)
{
GdkWaylandCairoSurfaceData *data = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key);
return data->busy;
}
gboolean
_gdk_wayland_is_shm_surface (cairo_surface_t *surface)
{
return cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key) != NULL;
}
GdkWaylandSelection *
gdk_wayland_display_get_selection (GdkDisplay *display)
{
GdkWaylandDisplay *wayland_display = GDK_WAYLAND_DISPLAY (display);
return wayland_display->selection;
}
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