gtk2/gdk/wayland/gdkdisplay-wayland.c
Jasper St. Pierre b3cffb85f3 wayland: Support always-on-top / sticky windows
Use the new gtk-shell APIs available in mutter to add support for this.

https://bugzilla.gnome.org/show_bug.cgi?id=710056
2013-10-28 18:03:26 -04:00

749 lines
22 KiB
C

/*
* 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 <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"
/**
* 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 <literal>&lt;gdk/gdkwayland.h&gt;</literal>
* header and use the Wayland-specific pkg-config files to build your
* application (either <literal>gdk-wayland-3.0</literal> or
* <literal>gtk+-wayland-3.0</literal>).
*
* 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).
* |[
* #ifdef GDK_WINDOWING_WAYLAND
* if (GDK_IS_WAYLAND_DISPLAY (display))
* {
* /&ast; make Wayland-specific calls here &ast;/
* }
* else
* #endif
* #ifdef GDK_WINDOWING_X11
* if (GDK_IS_X11_DISPLAY (display))
* {
* /&ast; make X11-specific calls here &ast;/
* }
* 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
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
init_sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
GdkWaylandDisplay *display = data;
display->init_ref_count--;
wl_callback_destroy(callback);
}
static const struct wl_callback_listener init_sync_listener = {
init_sync_callback
};
static void
wait_for_roundtrip(GdkWaylandDisplay *display)
{
struct wl_callback *callback;
display->init_ref_count++;
callback = wl_display_sync(display->wl_display);
wl_callback_add_listener(callback, &init_sync_listener, display);
}
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;
GdkDisplay *gdk_display = GDK_DISPLAY_OBJECT (data);
struct wl_seat *seat;
struct wl_output *output;
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);
/* SHM interface is prerequisite */
_gdk_wayland_display_load_cursor_theme(display_wayland);
} else if (strcmp(interface, "wl_shell") == 0) {
display_wayland->shell =
wl_registry_bind(display_wayland->wl_registry, id, &wl_shell_interface, 1);
} else if (strcmp(interface, "gtk_shell") == 0) {
display_wayland->gtk_shell =
wl_registry_bind(display_wayland->wl_registry, id, &gtk_shell_interface, 2);
_gdk_wayland_screen_set_has_gtk_shell (display_wayland->screen);
/* We need another roundtrip to receive the shell capabilities */
wait_for_roundtrip(display_wayland);
} 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));
/* We need another roundtrip to receive the modes and geometry
* events for the output, which gives us the physical properties
* and available modes on the output. */
wait_for_roundtrip(display_wayland);
} else if (strcmp(interface, "wl_seat") == 0) {
seat = wl_registry_bind(display_wayland->wl_registry, id, &wl_seat_interface, 1);
_gdk_wayland_device_manager_add_seat (gdk_display->device_manager, id, seat);
/* We need another roundtrip to receive the wl_seat capabilities
* event which informs us of available input devices on this
* seat. */
wait_for_roundtrip(display_wayland);
} 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);
}
}
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_wayland_device_manager_remove_seat (display->device_manager, id);
_gdk_wayland_screen_remove_output (display_wayland->screen, 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_ERROR, format, args);
}
GdkDisplay *
_gdk_wayland_display_open (const gchar *display_name)
{
struct wl_display *wl_display;
GdkDisplay *display;
GdkWaylandDisplay *display_wayland;
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_wayland = GDK_WAYLAND_DISPLAY (display);
display_wayland->wl_display = wl_display;
display_wayland->screen = _gdk_wayland_screen_new (display);
display->device_manager = _gdk_wayland_device_manager_new (display);
/* Set up listener so we'll catch all events. */
display_wayland->wl_registry = wl_display_get_registry(display_wayland->wl_display);
wl_registry_add_listener(display_wayland->wl_registry, &registry_listener, display_wayland);
/* We use init_ref_count to track whether some part of our
* initialization still needs a roundtrip to complete. */
wait_for_roundtrip(display_wayland);
while (display_wayland->init_ref_count > 0)
wl_display_roundtrip(display_wayland->wl_display);
display_wayland->event_source =
_gdk_wayland_display_event_source_new (display);
gdk_input_init (display);
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;
}
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 TRUE;
}
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 TRUE;
}
static gboolean
gdk_wayland_display_supports_input_shapes (GdkDisplay *display)
{
return TRUE;
}
static gboolean
gdk_wayland_display_supports_composite (GdkDisplay *display)
{
return TRUE;
}
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;
}
/**
* gdk_wayland_display_broadcast_startup_message:
* @display: a #GdkDisplay
* @message_type: startup notification message type ("new", "change",
* or "remove")
* @...: a list of key/value pairs (as strings), terminated by a
* %NULL key. (A %NULL value for a key will cause that key to be
* skipped in the output.)
*
* Sends a startup notification message of type @message_type to
* @display.
*
* This is a convenience function for use by code that implements the
* freedesktop startup notification specification. Applications should
* not normally need to call it directly. See the <ulink
* url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
* Notification Protocol specification</ulink> for
* definitions of the message types and keys that can be used.
*
* Since: 2.12
**/
void
gdk_wayland_display_broadcast_startup_message (GdkDisplay *display,
const char *message_type,
...)
{
GString *message;
va_list ap;
const char *key, *value, *p;
message = g_string_new (message_type);
g_string_append_c (message, ':');
va_start (ap, message_type);
while ((key = va_arg (ap, const char *)))
{
value = va_arg (ap, const char *);
if (!value)
continue;
g_string_append_printf (message, " %s=\"", key);
for (p = value; *p; p++)
{
switch (*p)
{
case ' ':
case '"':
case '\\':
g_string_append_c (message, '\\');
break;
}
g_string_append_c (message, *p);
}
g_string_append_c (message, '\"');
}
va_end (ap);
g_string_free (message, TRUE);
}
static void
gdk_wayland_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
gdk_wayland_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
}
static void
gdk_wayland_display_event_data_copy (GdkDisplay *display,
const GdkEvent *src,
GdkEvent *dst)
{
}
static void
gdk_wayland_display_event_data_free (GdkDisplay *display,
GdkEvent *event)
{
}
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 = list->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);
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->event_data_copy = gdk_wayland_display_event_data_copy;
display_class->event_data_free = gdk_wayland_display_event_data_free;
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;
}
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;
g_assert (wayland_display);
g_assert (wayland_display->shm);
theme = wl_cursor_theme_load (name, size, wayland_display->shm);
if (theme == NULL)
{
g_warning ("Failed to load cursor theme %s\n", name);
return;
}
_gdk_wayland_display_update_cursors (wayland_display, theme);
if (wayland_display->cursor_theme != NULL)
wl_cursor_theme_destroy (wayland_display->cursor_theme);
wayland_display->cursor_theme = 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)
{
GdkWaylandDisplay *wayland_display = GDK_WAYLAND_DISPLAY(display);
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY(display), NULL);
return wayland_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)
{
GdkWaylandDisplay *wayland_display = GDK_WAYLAND_DISPLAY(display);
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY(display), NULL);
return wayland_display->compositor;
}
/**
* gdk_wayland_display_get_wl_shell
* @display: (type GdkWaylandDisplay): a #GdkDisplay
*
* Returns the Wayland global singleton shell of a #GdkDisplay
*
* Returns: (transfer none): a Wayland wl_shell
*
* Since: 3.8
*/
struct wl_shell *
gdk_wayland_display_get_wl_shell (GdkDisplay *display)
{
GdkWaylandDisplay *wayland_display = GDK_WAYLAND_DISPLAY(display);
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY(display), NULL);
return wayland_display->shell;
}