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gtk2/gdk/wayland/gdkdisplay-wayland.c
Carlos Garnacho 3146f29d3a gdk/wayland: Add GdkDisplay call to query available globals 
The internal known_globals hashtable is used to carry accounting for
interfaces that depend on others (as ordering is not guaranteed), extend
its usage so it also keeps track of unimplemented interfaces (here at
least).

The API call will then use this to allow querying the globals offered by
the compositor, it will be useful to determine whether we can use
text-input protocols or should fallback to other IMs.
2018-02-14 14:58:06 +01:00

1419 lines
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/*
* 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>
#ifdef HAVE_LINUX_MEMFD_H
#include <linux/memfd.h>
#endif
#include <sys/mman.h>
#include <sys/syscall.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 "gdkwaylandmonitor.h"
#include "pointer-gestures-unstable-v1-client-protocol.h"
#include "tablet-unstable-v2-client-protocol.h"
#include "xdg-shell-unstable-v6-client-protocol.h"
#include "xdg-foreign-unstable-v1-client-protocol.h"
#include "server-decoration-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");
* ]|
*/
#define MIN_SYSTEM_BELL_DELAY_MS 20
#define GTK_SHELL1_VERSION 2
static void _gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *display_wayland);
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
xdg_shell_ping (void *data,
struct zxdg_shell_v6 *xdg_shell,
uint32_t serial)
{
GdkWaylandDisplay *display_wayland = data;
_gdk_wayland_display_update_serial (display_wayland, serial);
GDK_NOTE (EVENTS,
g_message ("ping, shell %p, serial %u\n", xdg_shell, serial));
zxdg_shell_v6_pong (xdg_shell, serial);
}
static const struct zxdg_shell_v6_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;
display_wayland->seat_version = MIN (version, 5);
seat = wl_registry_bind (display_wayland->wl_registry,
id, &wl_seat_interface,
display_wayland->seat_version);
_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);
}
#ifdef G_ENABLE_DEBUG
static const char *
get_format_name (enum wl_shm_format format)
{
int i;
#define FORMAT(s) { WL_SHM_FORMAT_ ## s, #s }
struct { int format; const char *name; } formats[] = {
FORMAT(ARGB8888),
FORMAT(XRGB8888),
FORMAT(C8),
FORMAT(RGB332),
FORMAT(BGR233),
FORMAT(XRGB4444),
FORMAT(XBGR4444),
FORMAT(RGBX4444),
FORMAT(BGRX4444),
FORMAT(ARGB4444),
FORMAT(ABGR4444),
FORMAT(RGBA4444),
FORMAT(BGRA4444),
FORMAT(XRGB1555),
FORMAT(XBGR1555),
FORMAT(RGBX5551),
FORMAT(BGRX5551),
FORMAT(ARGB1555),
FORMAT(ABGR1555),
FORMAT(RGBA5551),
FORMAT(BGRA5551),
FORMAT(RGB565),
FORMAT(BGR565),
FORMAT(RGB888),
FORMAT(BGR888),
FORMAT(XBGR8888),
FORMAT(RGBX8888),
FORMAT(BGRX8888),
FORMAT(ABGR8888),
FORMAT(RGBA8888),
FORMAT(BGRA8888),
FORMAT(XRGB2101010),
FORMAT(XBGR2101010),
FORMAT(RGBX1010102),
FORMAT(BGRX1010102),
FORMAT(ARGB2101010),
FORMAT(ABGR2101010),
FORMAT(RGBA1010102),
FORMAT(BGRA1010102),
FORMAT(YUYV),
FORMAT(YVYU),
FORMAT(UYVY),
FORMAT(VYUY),
FORMAT(AYUV),
FORMAT(NV12),
FORMAT(NV21),
FORMAT(NV16),
FORMAT(NV61),
FORMAT(YUV410),
FORMAT(YVU410),
FORMAT(YUV411),
FORMAT(YVU411),
FORMAT(YUV420),
FORMAT(YVU420),
FORMAT(YUV422),
FORMAT(YVU422),
FORMAT(YUV444),
FORMAT(YVU444),
{ 0xffffffff, NULL }
};
#undef FORMAT
for (i = 0; formats[i].name; i++)
{
if (formats[i].format == format)
return formats[i].name;
}
return NULL;
}
#endif
static void
wl_shm_format (void *data,
struct wl_shm *wl_shm,
uint32_t format)
{
GDK_NOTE (MISC, g_message ("supported pixel format %s", get_format_name (format)));
}
static const struct wl_shm_listener wl_shm_listener = {
wl_shm_format
};
static void
server_decoration_manager_default_mode (void *data,
struct org_kde_kwin_server_decoration_manager *manager,
uint32_t mode)
{
g_assert (mode <= ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_SERVER);
const char *modes[] = {
[ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_NONE] = "none",
[ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_CLIENT] = "client",
[ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_SERVER] = "server",
};
GdkWaylandDisplay *display_wayland = data;
g_debug ("Compositor prefers decoration mode '%s'", modes[mode]);
display_wayland->server_decoration_mode = mode;
}
static const struct org_kde_kwin_server_decoration_manager_listener server_decoration_listener = {
.default_mode = server_decoration_manager_default_mode
};
gboolean
gdk_wayland_display_prefers_ssd (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
if (display_wayland->server_decoration_manager)
return display_wayland->server_decoration_mode == ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_SERVER;
return FALSE;
}
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;
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);
wl_shm_add_listener (display_wayland->shm, &wl_shm_listener, display_wayland);
}
else if (strcmp (interface, "zxdg_shell_v6") == 0)
{
display_wayland->xdg_shell =
wl_registry_bind (display_wayland->wl_registry, id,
&zxdg_shell_v6_interface, 1);
zxdg_shell_v6_add_listener (display_wayland->xdg_shell,
&xdg_shell_listener,
display_wayland);
}
else if (strcmp (interface, "gtk_shell1") == 0)
{
display_wayland->gtk_shell =
wl_registry_bind(display_wayland->wl_registry, id,
&gtk_shell1_interface,
MIN (version, GTK_SHELL1_VERSION));
_gdk_wayland_screen_set_has_gtk_shell (display_wayland->screen);
display_wayland->gtk_shell_version = version;
}
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_version = MIN (version, 3);
display_wayland->data_device_manager =
wl_registry_bind (display_wayland->wl_registry, id, &wl_data_device_manager_interface,
display_wayland->data_device_manager_version);
}
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, "zwp_pointer_gestures_v1") == 0 &&
version == GDK_ZWP_POINTER_GESTURES_V1_VERSION)
{
display_wayland->pointer_gestures =
wl_registry_bind (display_wayland->wl_registry,
id, &zwp_pointer_gestures_v1_interface, version);
}
else if (strcmp (interface, "gtk_primary_selection_device_manager") == 0)
{
display_wayland->primary_selection_manager =
wl_registry_bind(display_wayland->wl_registry, id,
&gtk_primary_selection_device_manager_interface, 1);
}
else if (strcmp (interface, "zwp_tablet_manager_v2") == 0)
{
display_wayland->tablet_manager =
wl_registry_bind(display_wayland->wl_registry, id,
&zwp_tablet_manager_v2_interface, 1);
}
else if (strcmp (interface, "zxdg_exporter_v1") == 0)
{
display_wayland->xdg_exporter =
wl_registry_bind (display_wayland->wl_registry, id,
&zxdg_exporter_v1_interface, 1);
}
else if (strcmp (interface, "zxdg_importer_v1") == 0)
{
display_wayland->xdg_importer =
wl_registry_bind (display_wayland->wl_registry, id,
&zxdg_importer_v1_interface, 1);
}
else if (strcmp (interface, "zwp_keyboard_shortcuts_inhibit_manager_v1") == 0)
{
display_wayland->keyboard_shortcuts_inhibit =
wl_registry_bind (display_wayland->wl_registry, id,
&zwp_keyboard_shortcuts_inhibit_manager_v1_interface, 1);
}
else if (strcmp (interface, "org_kde_kwin_server_decoration_manager") == 0)
{
display_wayland->server_decoration_manager =
wl_registry_bind (display_wayland->wl_registry, id,
&org_kde_kwin_server_decoration_manager_interface, 1);
org_kde_kwin_server_decoration_manager_add_listener (display_wayland->server_decoration_manager,
&server_decoration_listener,
display_wayland);
}
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",
NULL
};
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;
}
}
/* Make sure we have xdg_shell at least */
if (display_wayland->xdg_shell == NULL)
{
g_warning ("Wayland compositor does not support xdg_shell interface,"
" not using Wayland display");
g_object_unref (display);
return NULL;
}
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);
_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);
guint i;
_gdk_wayland_display_finalize_cursors (display_wayland);
g_object_unref (display_wayland->screen);
g_free (display_wayland->startup_notification_id);
g_free (display_wayland->cursor_theme_name);
xkb_context_unref (display_wayland->xkb_context);
for (i = 0; i < GDK_WAYLAND_THEME_SCALES_COUNT; i++)
{
if (display_wayland->scaled_cursor_themes[i])
{
wl_cursor_theme_destroy (display_wayland->scaled_cursor_themes[i]);
display_wayland->scaled_cursor_themes[i] = NULL;
}
}
g_ptr_array_free (display_wayland->monitors, TRUE);
G_OBJECT_CLASS (gdk_wayland_display_parent_class)->finalize (object);
}
static const gchar *
gdk_wayland_display_get_name (GdkDisplay *display)
{
const gchar *name;
name = g_getenv ("WAYLAND_DISPLAY");
if (name == NULL)
name = "wayland-0";
return name;
}
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;
}
void
gdk_wayland_display_system_bell (GdkDisplay *display,
GdkWindow *window)
{
GdkWaylandDisplay *display_wayland;
struct gtk_surface1 *gtk_surface;
gint64 now_ms;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_wayland = GDK_WAYLAND_DISPLAY (display);
if (!display_wayland->gtk_shell)
return;
if (window)
gtk_surface = gdk_wayland_window_get_gtk_surface (window);
else
gtk_surface = NULL;
now_ms = g_get_monotonic_time () / 1000;
if (now_ms - display_wayland->last_bell_time_ms < MIN_SYSTEM_BELL_DELAY_MS)
return;
display_wayland->last_bell_time_ms = now_ms;
gtk_shell1_system_bell (display_wayland->gtk_shell, gtk_surface);
}
static void
gdk_wayland_display_beep (GdkDisplay *display)
{
gdk_wayland_display_system_bell (display, NULL);
}
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 void
gdk_wayland_display_make_default (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
const gchar *startup_id;
g_free (display_wayland->startup_notification_id);
display_wayland->startup_notification_id = NULL;
startup_id = g_getenv ("DESKTOP_STARTUP_ID");
if (startup_id && *startup_id != '\0')
{
if (!g_utf8_validate (startup_id, -1, NULL))
g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
else
display_wayland->startup_notification_id = g_strdup (startup_id);
/* Clear the environment variable so it won't be inherited by
* child processes and confuse things.
*/
g_unsetenv ("DESKTOP_STARTUP_ID");
}
}
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 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;
}
/**
* gdk_wayland_display_set_startup_notification_id:
* @display: (type GdkWaylandDisplay): a #GdkDisplay
* @startup_id: the startup notification ID (must be valid utf8)
*
* Sets the startup notification ID for a display.
*
* This is usually taken from the value of the DESKTOP_STARTUP_ID
* environment variable, but in some cases (such as the application not
* being launched using exec()) it can come from other sources.
*
* The startup ID is also what is used to signal that the startup is
* complete (for example, when opening a window or when calling
* gdk_notify_startup_complete()).
*
* Since: 3.22
**/
void
gdk_wayland_display_set_startup_notification_id (GdkDisplay *display,
const char *startup_id)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
g_free (display_wayland->startup_notification_id);
display_wayland->startup_notification_id = g_strdup (startup_id);
}
static void
gdk_wayland_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
gchar *free_this = NULL;
if (startup_id == NULL)
{
startup_id = free_this = display_wayland->startup_notification_id;
display_wayland->startup_notification_id = NULL;
if (startup_id == NULL)
return;
}
if (display_wayland->gtk_shell)
gtk_shell1_set_startup_id (display_wayland->gtk_shell, startup_id);
g_free (free_this);
}
static GdkKeymap *
_gdk_wayland_display_get_keymap (GdkDisplay *display)
{
GdkDevice *core_keyboard = NULL;
static GdkKeymap *tmp_keymap = NULL;
core_keyboard = gdk_seat_get_keyboard (gdk_display_get_default_seat (display));
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 int
gdk_wayland_display_get_n_monitors (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
return display_wayland->monitors->len;
}
static GdkMonitor *
gdk_wayland_display_get_monitor (GdkDisplay *display,
int monitor_num)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
if (monitor_num < 0 || monitor_num >= display_wayland->monitors->len)
return NULL;
return (GdkMonitor *)display_wayland->monitors->pdata[monitor_num];
}
static GdkMonitor *
gdk_wayland_display_get_monitor_at_window (GdkDisplay *display,
GdkWindow *window)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
struct wl_output *output;
int i;
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), NULL);
output = gdk_wayland_window_get_wl_output (window);
if (output == NULL)
return NULL;
for (i = 0; i < display_wayland->monitors->len; i++)
{
GdkMonitor *monitor = display_wayland->monitors->pdata[i];
if (gdk_wayland_monitor_get_wl_output (monitor) == output)
return monitor;
}
return NULL;
}
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->make_default = gdk_wayland_display_make_default;
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->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;
display_class->get_n_monitors = gdk_wayland_display_get_n_monitors;
display_class->get_monitor = gdk_wayland_display_get_monitor;
display_class->get_monitor_at_window = gdk_wayland_display_get_monitor_at_window;
}
static void
gdk_wayland_display_init (GdkWaylandDisplay *display)
{
display->xkb_context = xkb_context_new (0);
display->monitors = g_ptr_array_new_with_free_func (g_object_unref);
}
void
gdk_wayland_display_set_cursor_theme (GdkDisplay *display,
const gchar *name,
gint size)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY(display);
struct wl_cursor_theme *theme;
int i;
g_assert (display_wayland);
g_assert (display_wayland->shm);
if (g_strcmp0 (name, display_wayland->cursor_theme_name) == 0 &&
display_wayland->cursor_theme_size == size)
return;
theme = wl_cursor_theme_load (name, size, display_wayland->shm);
if (theme == NULL)
{
g_warning ("Failed to load cursor theme %s", name);
return;
}
for (i = 0; i < GDK_WAYLAND_THEME_SCALES_COUNT; i++)
{
if (display_wayland->scaled_cursor_themes[i])
{
wl_cursor_theme_destroy (display_wayland->scaled_cursor_themes[i]);
display_wayland->scaled_cursor_themes[i] = NULL;
}
}
display_wayland->scaled_cursor_themes[0] = theme;
if (display_wayland->cursor_theme_name != NULL)
g_free (display_wayland->cursor_theme_name);
display_wayland->cursor_theme_name = g_strdup (name);
display_wayland->cursor_theme_size = size;
_gdk_wayland_display_update_cursors (display_wayland);
}
struct wl_cursor_theme *
_gdk_wayland_display_get_scaled_cursor_theme (GdkWaylandDisplay *display_wayland,
guint scale)
{
struct wl_cursor_theme *theme;
g_assert (display_wayland->cursor_theme_name);
g_assert (scale <= GDK_WAYLAND_MAX_THEME_SCALE);
g_assert (scale >= 1);
theme = display_wayland->scaled_cursor_themes[scale - 1];
if (!theme)
{
theme = wl_cursor_theme_load (display_wayland->cursor_theme_name,
display_wayland->cursor_theme_size * scale,
display_wayland->shm);
if (theme == NULL)
{
g_warning ("Failed to load cursor theme %s with scale %u",
display_wayland->cursor_theme_name, scale);
return NULL;
}
display_wayland->scaled_cursor_themes[scale - 1] = theme;
}
return theme;
}
static void
_gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *display_wayland)
{
guint size;
const gchar *name;
GValue v = G_VALUE_INIT;
g_assert (display_wayland);
g_assert (display_wayland->shm);
g_value_init (&v, G_TYPE_INT);
if (gdk_screen_get_setting (display_wayland->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 (display_wayland->screen, "gtk-cursor-theme-name", &v))
name = g_value_get_string (&v);
else
name = "default";
gdk_wayland_display_set_cursor_theme (GDK_DISPLAY (display_wayland), name, size);
g_value_unset (&v);
}
guint32
_gdk_wayland_display_get_serial (GdkWaylandDisplay *display_wayland)
{
return display_wayland->serial;
}
void
_gdk_wayland_display_update_serial (GdkWaylandDisplay *display_wayland,
guint32 serial)
{
display_wayland->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;
}
static const cairo_user_data_key_t gdk_wayland_shm_surface_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;
} GdkWaylandCairoSurfaceData;
static int
open_shared_memory (void)
{
static gboolean force_shm_open = FALSE;
int ret = -1;
#if !defined (__NR_memfd_create)
force_shm_open = TRUE;
#endif
do
{
#if defined (__NR_memfd_create)
if (!force_shm_open)
{
ret = syscall (__NR_memfd_create, "gdk-wayland", MFD_CLOEXEC);
/* fall back to shm_open until debian stops shipping 3.16 kernel
* See bug 766341
*/
if (ret < 0 && errno == ENOSYS)
force_shm_open = TRUE;
}
#endif
if (force_shm_open)
{
char name[NAME_MAX - 1] = "";
sprintf (name, "/gdk-wayland-%x", g_random_int ());
ret = shm_open (name, O_CREAT | O_EXCL | O_RDWR | O_CLOEXEC, 0600);
if (ret >= 0)
shm_unlink (name);
else if (errno == EEXIST)
continue;
}
}
while (ret < 0 && errno == EINTR);
if (ret < 0)
g_critical (G_STRLOC ": creating shared memory file (using %s) failed: %m",
force_shm_open? "shm_open" : "memfd_create");
return ret;
}
static struct wl_shm_pool *
create_shm_pool (struct wl_shm *shm,
int size,
size_t *buf_length,
void **data_out)
{
struct wl_shm_pool *pool;
int fd;
void *data;
fd = open_shared_memory ();
if (fd < 0)
return NULL;
if (ftruncate (fd, size) < 0)
{
g_critical (G_STRLOC ": Truncating shared memory file failed: %m");
close (fd);
return NULL;
}
data = mmap (NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED)
{
g_critical (G_STRLOC ": mmap'ping shared memory file failed: %m");
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;
stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32, width*scale);
data->pool = create_shm_pool (display->shm,
height*scale*stride,
&data->buf_length,
&data->buf);
surface = cairo_image_surface_create_for_data (data->buf,
CAIRO_FORMAT_ARGB32,
width*scale,
height*scale,
stride);
data->buffer = wl_shm_pool_create_buffer (data->pool, 0,
width*scale, height*scale,
stride, WL_SHM_FORMAT_ARGB8888);
cairo_surface_set_user_data (surface, &gdk_wayland_shm_surface_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_shm_surface_cairo_key);
return data->buffer;
}
gboolean
_gdk_wayland_is_shm_surface (cairo_surface_t *surface)
{
return cairo_surface_get_user_data (surface, &gdk_wayland_shm_surface_cairo_key) != NULL;
}
GdkWaylandSelection *
gdk_wayland_display_get_selection (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
return display_wayland->selection;
}
/**
* gdk_wayland_display_query_registry:
* @display: a wayland #GdkDisplay
* @interface: global interface to query in the registry
*
* Returns %TRUE if the the interface was found in the display
* wl_registry.global handler.
*
* Returns: %TRUE if the global is offered by the compositor
*
* Since: 3.22.27
**/
gboolean
gdk_wayland_display_query_registry (GdkDisplay *display,
const gchar *global)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GHashTableIter iter;
gchar *value;
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), FALSE);
g_return_val_if_fail (global != NULL, FALSE);
g_hash_table_iter_init (&iter, display_wayland->known_globals);
while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &value))
{
if (strcmp (value, global) == 0)
return TRUE;
}
return FALSE;
}
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