mutter/src/wayland/meta-wayland-keyboard.c
Jonas Ådahl 133bbdfefa wayland/keyboard: Check keyboard presence at set focus call site
Make the caller of focus setting and grab starting check whether there
is a keyboard to update the focus state or start grabbing. It makes it
more obvious what to expect, as the call would be a no-op in when no
keyboard is present.

https://bugzilla.gnome.org/show_bug.cgi?id=771646
2016-10-11 22:51:54 +08:00

979 lines
30 KiB
C

/*
* Wayland Support
*
* Copyright (C) 2013 Intel Corporation
*
* 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.
*/
/*
* Copyright © 2010-2011 Intel Corporation
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2012 Collabora, Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* The file is based on src/input.c from Weston */
#include "config.h"
#include <glib.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <clutter/evdev/clutter-evdev.h>
#include "display-private.h"
#include "backends/meta-backend-private.h"
#include "meta-wayland-private.h"
#ifdef HAVE_NATIVE_BACKEND
#include "backends/native/meta-backend-native.h"
#endif
#define GSD_KEYBOARD_SCHEMA "org.gnome.settings-daemon.peripherals.keyboard"
typedef enum
{
GSD_KEYBOARD_NUM_LOCK_STATE_UNKNOWN,
GSD_KEYBOARD_NUM_LOCK_STATE_ON,
GSD_KEYBOARD_NUM_LOCK_STATE_OFF
} GsdKeyboardNumLockState;
G_DEFINE_TYPE (MetaWaylandKeyboard, meta_wayland_keyboard,
META_TYPE_WAYLAND_INPUT_DEVICE)
static void meta_wayland_keyboard_update_xkb_state (MetaWaylandKeyboard *keyboard);
static void meta_wayland_keyboard_set_numlock (MetaWaylandKeyboard *keyboard,
gboolean numlock_state);
static void notify_modifiers (MetaWaylandKeyboard *keyboard);
static guint evdev_code (const ClutterKeyEvent *event);
static void
unbind_resource (struct wl_resource *resource)
{
wl_list_remove (wl_resource_get_link (resource));
}
static int
create_anonymous_file (off_t size,
GError **error)
{
static const char template[] = "mutter-shared-XXXXXX";
char *path;
int fd, flags;
fd = g_file_open_tmp (template, &path, error);
if (fd == -1)
return -1;
unlink (path);
g_free (path);
flags = fcntl (fd, F_GETFD);
if (flags == -1)
goto err;
if (fcntl (fd, F_SETFD, flags | FD_CLOEXEC) == -1)
goto err;
if (ftruncate (fd, size) < 0)
goto err;
return fd;
err:
g_set_error_literal (error,
G_FILE_ERROR,
g_file_error_from_errno (errno),
strerror (errno));
close (fd);
return -1;
}
static void
inform_clients_of_new_keymap (MetaWaylandKeyboard *keyboard)
{
struct wl_resource *keyboard_resource;
wl_resource_for_each (keyboard_resource, &keyboard->resource_list)
{
wl_keyboard_send_keymap (keyboard_resource,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
keyboard->xkb_info.keymap_fd,
keyboard->xkb_info.keymap_size);
}
wl_resource_for_each (keyboard_resource, &keyboard->focus_resource_list)
{
wl_keyboard_send_keymap (keyboard_resource,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
keyboard->xkb_info.keymap_fd,
keyboard->xkb_info.keymap_size);
}
}
static void
meta_wayland_keyboard_take_keymap (MetaWaylandKeyboard *keyboard,
struct xkb_keymap *keymap)
{
MetaWaylandXkbInfo *xkb_info = &keyboard->xkb_info;
GError *error = NULL;
char *keymap_str;
size_t previous_size;
if (keymap == NULL)
{
g_warning ("Attempting to set null keymap (compilation probably failed)");
return;
}
xkb_keymap_unref (xkb_info->keymap);
xkb_info->keymap = xkb_keymap_ref (keymap);
meta_wayland_keyboard_update_xkb_state (keyboard);
keymap_str = xkb_map_get_as_string (xkb_info->keymap);
if (keymap_str == NULL)
{
g_warning ("failed to get string version of keymap");
return;
}
previous_size = xkb_info->keymap_size;
xkb_info->keymap_size = strlen (keymap_str) + 1;
if (xkb_info->keymap_fd >= 0)
close (xkb_info->keymap_fd);
xkb_info->keymap_fd = create_anonymous_file (xkb_info->keymap_size, &error);
if (xkb_info->keymap_fd < 0)
{
g_warning ("creating a keymap file for %lu bytes failed: %s",
(unsigned long) xkb_info->keymap_size,
error->message);
g_clear_error (&error);
goto err_keymap_str;
}
if (xkb_info->keymap_area)
munmap (xkb_info->keymap_area, previous_size);
xkb_info->keymap_area = mmap (NULL, xkb_info->keymap_size,
PROT_READ | PROT_WRITE,
MAP_SHARED, xkb_info->keymap_fd, 0);
if (xkb_info->keymap_area == MAP_FAILED)
{
g_warning ("failed to mmap() %lu bytes\n",
(unsigned long) xkb_info->keymap_size);
goto err_dev_zero;
}
strcpy (xkb_info->keymap_area, keymap_str);
free (keymap_str);
inform_clients_of_new_keymap (keyboard);
notify_modifiers (keyboard);
return;
err_dev_zero:
close (xkb_info->keymap_fd);
xkb_info->keymap_fd = -1;
err_keymap_str:
free (keymap_str);
return;
}
static void
on_keymap_changed (MetaBackend *backend,
gpointer data)
{
MetaWaylandKeyboard *keyboard = data;
meta_wayland_keyboard_take_keymap (keyboard, meta_backend_get_keymap (backend));
}
static void
on_keymap_layout_group_changed (MetaBackend *backend,
guint idx,
gpointer data)
{
MetaWaylandKeyboard *keyboard = data;
xkb_mod_mask_t depressed_mods;
xkb_mod_mask_t latched_mods;
xkb_mod_mask_t locked_mods;
struct xkb_state *state;
state = keyboard->xkb_info.state;
depressed_mods = xkb_state_serialize_mods (state, XKB_STATE_MODS_DEPRESSED);
latched_mods = xkb_state_serialize_mods (state, XKB_STATE_MODS_LATCHED);
locked_mods = xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED);
xkb_state_update_mask (state, depressed_mods, latched_mods, locked_mods, 0, 0, idx);
notify_modifiers (keyboard);
}
static void
keyboard_handle_focus_surface_destroy (struct wl_listener *listener, void *data)
{
MetaWaylandKeyboard *keyboard = wl_container_of (listener, keyboard,
focus_surface_listener);
meta_wayland_keyboard_set_focus (keyboard, NULL);
}
static gboolean
meta_wayland_keyboard_broadcast_key (MetaWaylandKeyboard *keyboard,
uint32_t time,
uint32_t key,
uint32_t state)
{
struct wl_resource *resource;
if (!wl_list_empty (&keyboard->focus_resource_list))
{
MetaWaylandInputDevice *input_device =
META_WAYLAND_INPUT_DEVICE (keyboard);
keyboard->key_serial =
meta_wayland_input_device_next_serial (input_device);
wl_resource_for_each (resource, &keyboard->focus_resource_list)
{
wl_keyboard_send_key (resource, keyboard->key_serial, time, key, state);
}
}
/* Eat the key events if we have a focused surface. */
return (keyboard->focus_surface != NULL);
}
static gboolean
notify_key (MetaWaylandKeyboard *keyboard,
const ClutterEvent *event)
{
return keyboard->grab->interface->key (keyboard->grab, event);
}
static xkb_mod_mask_t
add_vmod (xkb_mod_mask_t mask,
xkb_mod_mask_t mod,
xkb_mod_mask_t vmod,
xkb_mod_mask_t *added)
{
if ((mask & mod) && !(mod & *added))
{
mask |= vmod;
*added |= mod;
}
return mask;
}
static xkb_mod_mask_t
add_virtual_mods (xkb_mod_mask_t mask)
{
MetaKeyBindingManager *keys = &(meta_get_display ()->key_binding_manager);
xkb_mod_mask_t added;
guint i;
/* Order is important here: if multiple vmods share the same real
modifier we only want to add the first. */
struct {
xkb_mod_mask_t mod;
xkb_mod_mask_t vmod;
} mods[] = {
{ keys->super_mask, keys->virtual_super_mask },
{ keys->hyper_mask, keys->virtual_hyper_mask },
{ keys->meta_mask, keys->virtual_meta_mask },
};
added = 0;
for (i = 0; i < G_N_ELEMENTS (mods); ++i)
mask = add_vmod (mask, mods[i].mod, mods[i].vmod, &added);
return mask;
}
static void
keyboard_send_modifiers (MetaWaylandKeyboard *keyboard,
struct wl_resource *resource,
uint32_t serial)
{
struct xkb_state *state = keyboard->xkb_info.state;
xkb_mod_mask_t depressed, latched, locked;
depressed = add_virtual_mods (xkb_state_serialize_mods (state, XKB_STATE_MODS_DEPRESSED));
latched = add_virtual_mods (xkb_state_serialize_mods (state, XKB_STATE_MODS_LATCHED));
locked = add_virtual_mods (xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED));
wl_keyboard_send_modifiers (resource, serial, depressed, latched, locked,
xkb_state_serialize_layout (state, XKB_STATE_LAYOUT_EFFECTIVE));
}
static void
meta_wayland_keyboard_broadcast_modifiers (MetaWaylandKeyboard *keyboard)
{
struct wl_resource *resource;
if (!wl_list_empty (&keyboard->focus_resource_list))
{
MetaWaylandInputDevice *input_device =
META_WAYLAND_INPUT_DEVICE (keyboard);
uint32_t serial;
serial = meta_wayland_input_device_next_serial (input_device);
wl_resource_for_each (resource, &keyboard->focus_resource_list)
keyboard_send_modifiers (keyboard, resource, serial);
}
}
static void
notify_modifiers (MetaWaylandKeyboard *keyboard)
{
struct xkb_state *state;
state = keyboard->xkb_info.state;
keyboard->grab->interface->modifiers (keyboard->grab,
xkb_state_serialize_mods (state, XKB_STATE_MODS_EFFECTIVE));
}
static void
numlock_set_xkb_state (MetaWaylandKeyboard *keyboard,
GsdKeyboardNumLockState state)
{
MetaBackend *backend = meta_get_backend ();
gboolean numlock_state;
if (state != GSD_KEYBOARD_NUM_LOCK_STATE_ON &&
state != GSD_KEYBOARD_NUM_LOCK_STATE_OFF)
return;
numlock_state = (state == GSD_KEYBOARD_NUM_LOCK_STATE_ON);
meta_verbose ("set numlock state %s\n", (numlock_state ? "ON" : "OFF"));
meta_backend_set_numlock (backend, numlock_state);
meta_wayland_keyboard_set_numlock (keyboard, numlock_state);
}
static void
maybe_restore_numlock_state (MetaWaylandKeyboard *keyboard)
{
gboolean remember_numlock;
if (!keyboard->gsd_settings)
return;
/* We are cheating for now, we use g-s-d settings... */
remember_numlock = g_settings_get_boolean (keyboard->gsd_settings,
"remember-numlock-state");
if (remember_numlock)
{
GsdKeyboardNumLockState state;
state = g_settings_get_enum (keyboard->gsd_settings, "numlock-state");
numlock_set_xkb_state (keyboard, state);
}
}
static void
maybe_save_numlock_state (MetaWaylandKeyboard *keyboard)
{
MetaWaylandXkbInfo *xkb_info = &keyboard->xkb_info;
GsdKeyboardNumLockState numlock_state;
int numlock_active;
if (!META_IS_BACKEND_NATIVE (meta_get_backend ()))
return;
if (!xkb_info->state)
return;
if (!keyboard->gsd_settings)
return;
if (!g_settings_get_boolean (keyboard->gsd_settings, "remember-numlock-state"))
return;
numlock_active = xkb_state_mod_name_is_active(xkb_info->state,
"Mod2",
XKB_STATE_MODS_LOCKED);
switch (numlock_active)
{
case -1:
numlock_state = GSD_KEYBOARD_NUM_LOCK_STATE_UNKNOWN;
break;
case 0:
numlock_state = GSD_KEYBOARD_NUM_LOCK_STATE_OFF;
break;
default:
numlock_state = GSD_KEYBOARD_NUM_LOCK_STATE_ON;
break;
}
g_settings_set_enum (keyboard->gsd_settings, "numlock-state", numlock_state);
}
static void
meta_wayland_keyboard_set_numlock (MetaWaylandKeyboard *keyboard,
gboolean numlock_state)
{
MetaWaylandXkbInfo *xkb_info = &keyboard->xkb_info;
xkb_mod_mask_t latched, locked, group, depressed;
xkb_mod_mask_t numlock;
meta_verbose ("backend numlock state %s\n", (numlock_state ? "ON" : "OFF"));
latched = xkb_state_serialize_mods (xkb_info->state, XKB_STATE_MODS_LATCHED);
locked = xkb_state_serialize_mods (xkb_info->state, XKB_STATE_MODS_LOCKED);
group = xkb_state_serialize_layout (xkb_info->state, XKB_STATE_LAYOUT_EFFECTIVE);
depressed = xkb_state_serialize_mods(xkb_info->state, XKB_STATE_DEPRESSED);
numlock = (1 << xkb_keymap_mod_get_index(xkb_info->keymap, "Mod2"));
if (numlock_state == TRUE)
locked |= numlock;
else
locked &= ~numlock;
xkb_state_update_mask (xkb_info->state, depressed, latched, locked, 0, 0, group);
notify_modifiers (keyboard);
}
static void
meta_wayland_keyboard_update_xkb_state (MetaWaylandKeyboard *keyboard)
{
MetaWaylandXkbInfo *xkb_info = &keyboard->xkb_info;
xkb_mod_mask_t latched, locked, group;
/* Preserve latched/locked modifiers state */
if (xkb_info->state)
{
latched = xkb_state_serialize_mods (xkb_info->state, XKB_STATE_MODS_LATCHED);
locked = xkb_state_serialize_mods (xkb_info->state, XKB_STATE_MODS_LOCKED);
group = xkb_state_serialize_layout (xkb_info->state, XKB_STATE_LAYOUT_EFFECTIVE);
xkb_state_unref (xkb_info->state);
}
else
latched = locked = group = 0;
xkb_info->state = xkb_state_new (xkb_info->keymap);
if (latched || locked || group)
xkb_state_update_mask (xkb_info->state, 0, latched, locked, 0, 0, group);
}
static void
notify_key_repeat_for_resource (MetaWaylandKeyboard *keyboard,
struct wl_resource *keyboard_resource)
{
if (wl_resource_get_version (keyboard_resource) >= WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION)
{
gboolean repeat;
unsigned int delay, rate;
repeat = g_settings_get_boolean (keyboard->settings, "repeat");
if (repeat)
{
unsigned int interval;
interval = g_settings_get_uint (keyboard->settings, "repeat-interval");
/* Our setting is in the milliseconds between keys. "rate" is the number
* of keys per second. */
rate = (1000 / interval);
delay = g_settings_get_uint (keyboard->settings, "delay");
}
else
{
rate = 0;
delay = 0;
}
wl_keyboard_send_repeat_info (keyboard_resource, rate, delay);
}
}
static void
notify_key_repeat (MetaWaylandKeyboard *keyboard)
{
struct wl_resource *keyboard_resource;
wl_resource_for_each (keyboard_resource, &keyboard->resource_list)
{
notify_key_repeat_for_resource (keyboard, keyboard_resource);
}
wl_resource_for_each (keyboard_resource, &keyboard->focus_resource_list)
{
notify_key_repeat_for_resource (keyboard, keyboard_resource);
}
}
static void
remember_numlock_state_changed (GSettings *settings,
const char *key,
gpointer data)
{
MetaWaylandKeyboard *keyboard = data;
maybe_save_numlock_state (keyboard);
}
static void
settings_changed (GSettings *settings,
const char *key,
gpointer data)
{
MetaWaylandKeyboard *keyboard = data;
notify_key_repeat (keyboard);
}
static gboolean
default_grab_key (MetaWaylandKeyboardGrab *grab,
const ClutterEvent *event)
{
MetaWaylandKeyboard *keyboard = grab->keyboard;
gboolean is_press = event->type == CLUTTER_KEY_PRESS;
guint32 code;
#ifdef HAVE_NATIVE_BACKEND
MetaBackend *backend = meta_get_backend ();
#endif
/* Synthetic key events are for autorepeat. Ignore those, as
* autorepeat in Wayland is done on the client side. */
if (event->key.flags & CLUTTER_EVENT_FLAG_SYNTHETIC)
return FALSE;
#ifdef HAVE_NATIVE_BACKEND
if (META_IS_BACKEND_NATIVE (backend))
code = clutter_evdev_event_get_event_code (event);
else
#endif
code = evdev_code (&event->key);
return meta_wayland_keyboard_broadcast_key (keyboard, event->key.time,
code, is_press);
}
static void
default_grab_modifiers (MetaWaylandKeyboardGrab *grab,
ClutterModifierType modifiers)
{
meta_wayland_keyboard_broadcast_modifiers (grab->keyboard);
}
static const MetaWaylandKeyboardGrabInterface default_keyboard_grab_interface = {
default_grab_key,
default_grab_modifiers
};
void
meta_wayland_keyboard_enable (MetaWaylandKeyboard *keyboard)
{
MetaBackend *backend = meta_get_backend ();
GSettingsSchema *schema;
keyboard->settings = g_settings_new ("org.gnome.desktop.peripherals.keyboard");
g_signal_connect (keyboard->settings, "changed",
G_CALLBACK (settings_changed), keyboard);
/* We are cheating for now, we use g-s-d settings... Check if available */
schema = g_settings_schema_source_lookup (g_settings_schema_source_get_default (),
GSD_KEYBOARD_SCHEMA,
TRUE);
if (schema)
{
keyboard->gsd_settings = g_settings_new_full (schema, NULL, NULL);
g_settings_schema_unref (schema);
g_signal_connect (keyboard->gsd_settings, "changed::remember-numlock-state",
G_CALLBACK (remember_numlock_state_changed), keyboard);
}
g_signal_connect (backend, "keymap-changed",
G_CALLBACK (on_keymap_changed), keyboard);
g_signal_connect (backend, "keymap-layout-group-changed",
G_CALLBACK (on_keymap_layout_group_changed), keyboard);
meta_wayland_keyboard_take_keymap (keyboard, meta_backend_get_keymap (backend));
maybe_restore_numlock_state (keyboard);
}
static void
meta_wayland_xkb_info_init (MetaWaylandXkbInfo *xkb_info)
{
xkb_info->keymap_fd = -1;
}
static void
meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
{
g_clear_pointer (&xkb_info->keymap, xkb_keymap_unref);
g_clear_pointer (&xkb_info->state, xkb_state_unref);
if (xkb_info->keymap_area)
{
munmap (xkb_info->keymap_area, xkb_info->keymap_size);
xkb_info->keymap_area = NULL;
}
if (xkb_info->keymap_fd >= 0)
{
close (xkb_info->keymap_fd);
xkb_info->keymap_fd = -1;
}
}
void
meta_wayland_keyboard_disable (MetaWaylandKeyboard *keyboard)
{
MetaBackend *backend = meta_get_backend ();
g_signal_handlers_disconnect_by_func (backend, on_keymap_changed, keyboard);
g_signal_handlers_disconnect_by_func (backend, on_keymap_layout_group_changed, keyboard);
meta_wayland_keyboard_end_grab (keyboard);
meta_wayland_keyboard_set_focus (keyboard, NULL);
meta_wayland_xkb_info_destroy (&keyboard->xkb_info);
wl_list_remove (&keyboard->resource_list);
wl_list_init (&keyboard->resource_list);
wl_list_remove (&keyboard->focus_resource_list);
wl_list_init (&keyboard->focus_resource_list);
g_clear_object (&keyboard->settings);
if (keyboard->gsd_settings)
g_object_unref (keyboard->gsd_settings);
}
static guint
evdev_code (const ClutterKeyEvent *event)
{
/* clutter-xkb-utils.c adds a fixed offset of 8 to go into XKB's
* range, so we do the reverse here. */
return event->hardware_keycode - 8;
}
void
meta_wayland_keyboard_update (MetaWaylandKeyboard *keyboard,
const ClutterKeyEvent *event)
{
gboolean is_press = event->type == CLUTTER_KEY_PRESS;
/* If we get a key event but still have pending modifier state
* changes from a previous event that didn't get cleared, we need to
* send that state right away so that the new key event can be
* interpreted by clients correctly modified. */
if (keyboard->mods_changed)
notify_modifiers (keyboard);
keyboard->mods_changed = xkb_state_update_key (keyboard->xkb_info.state,
event->hardware_keycode,
is_press ? XKB_KEY_DOWN : XKB_KEY_UP);
}
gboolean
meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
const ClutterKeyEvent *event)
{
gboolean is_press = event->type == CLUTTER_KEY_PRESS;
gboolean handled;
/* Synthetic key events are for autorepeat. Ignore those, as
* autorepeat in Wayland is done on the client side. */
if (event->flags & CLUTTER_EVENT_FLAG_SYNTHETIC)
return FALSE;
meta_verbose ("Handling key %s event code %d\n",
is_press ? "press" : "release",
event->hardware_keycode);
handled = notify_key (keyboard, (const ClutterEvent *) event);
if (handled)
meta_verbose ("Sent event to wayland client\n");
else
meta_verbose ("No wayland surface is focused, continuing normal operation\n");
if (keyboard->mods_changed != 0)
{
if (keyboard->mods_changed & XKB_STATE_MODS_LOCKED)
maybe_save_numlock_state (keyboard);
notify_modifiers (keyboard);
keyboard->mods_changed = 0;
}
return handled;
}
void
meta_wayland_keyboard_update_key_state (MetaWaylandKeyboard *keyboard,
char *key_vector,
int key_vector_len,
int offset)
{
gboolean mods_changed = FALSE;
int i;
for (i = offset; i < key_vector_len * 8; i++)
{
gboolean set = (key_vector[i/8] & (1 << (i % 8))) != 0;
/* The 'offset' parameter allows the caller to have the indices
* into key_vector to either be X-style (base 8) or evdev (base 0), or
* something else (unlikely). We subtract 'offset' to convert to evdev
* style, then add 8 to convert the "evdev" style keycode back to
* the X-style that xkbcommon expects.
*/
mods_changed |= xkb_state_update_key (keyboard->xkb_info.state,
i - offset + 8,
set ? XKB_KEY_DOWN : XKB_KEY_UP);
}
if (mods_changed)
notify_modifiers (keyboard);
}
static void
move_resources (struct wl_list *destination, struct wl_list *source)
{
wl_list_insert_list (destination, source);
wl_list_init (source);
}
static void
move_resources_for_client (struct wl_list *destination,
struct wl_list *source,
struct wl_client *client)
{
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe (resource, tmp, source)
{
if (wl_resource_get_client (resource) == client)
{
wl_list_remove (wl_resource_get_link (resource));
wl_list_insert (destination, wl_resource_get_link (resource));
}
}
}
static void
broadcast_focus (MetaWaylandKeyboard *keyboard,
struct wl_resource *resource)
{
struct wl_array fake_keys;
/* We never want to send pressed keys to wayland clients on
* enter. The protocol says that we should send them, presumably so
* that clients can trigger their own key repeat routine in case
* they are given focus and a key is physically pressed.
*
* Unfortunately this causes some clients, in particular Xwayland,
* to register key events that they really shouldn't handle,
* e.g. on an Alt+Tab keybinding, where Alt is released before Tab,
* clients would see Tab being pressed on enter followed by a key
* release event for Tab, meaning that Tab would be processed by
* the client when it really shouldn't.
*
* Since the use case for the pressed keys array on enter seems weak
* to us, we'll just fake that there are no pressed keys instead
* which should be spec compliant even if it might not be true.
*/
wl_array_init (&fake_keys);
keyboard_send_modifiers (keyboard, resource, keyboard->focus_serial);
wl_keyboard_send_enter (resource, keyboard->focus_serial,
keyboard->focus_surface->resource,
&fake_keys);
}
void
meta_wayland_keyboard_set_focus (MetaWaylandKeyboard *keyboard,
MetaWaylandSurface *surface)
{
MetaWaylandInputDevice *input_device = META_WAYLAND_INPUT_DEVICE (keyboard);
if (keyboard->focus_surface == surface)
return;
if (keyboard->focus_surface != NULL)
{
if (!wl_list_empty (&keyboard->focus_resource_list))
{
struct wl_resource *resource;
uint32_t serial;
serial = meta_wayland_input_device_next_serial (input_device);
wl_resource_for_each (resource, &keyboard->focus_resource_list)
{
wl_keyboard_send_leave (resource, serial,
keyboard->focus_surface->resource);
}
move_resources (&keyboard->resource_list,
&keyboard->focus_resource_list);
}
wl_list_remove (&keyboard->focus_surface_listener.link);
keyboard->focus_surface = NULL;
}
if (surface != NULL)
{
struct wl_resource *focus_surface_resource;
keyboard->focus_surface = surface;
focus_surface_resource = keyboard->focus_surface->resource;
wl_resource_add_destroy_listener (focus_surface_resource,
&keyboard->focus_surface_listener);
move_resources_for_client (&keyboard->focus_resource_list,
&keyboard->resource_list,
wl_resource_get_client (focus_surface_resource));
if (!wl_list_empty (&keyboard->focus_resource_list))
{
struct wl_resource *resource;
keyboard->focus_serial =
meta_wayland_input_device_next_serial (input_device);
wl_resource_for_each (resource, &keyboard->focus_resource_list)
{
broadcast_focus (keyboard, resource);
}
}
}
}
struct wl_client *
meta_wayland_keyboard_get_focus_client (MetaWaylandKeyboard *keyboard)
{
if (keyboard->focus_surface)
return wl_resource_get_client (keyboard->focus_surface->resource);
else
return NULL;
}
static void
keyboard_release (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static const struct wl_keyboard_interface keyboard_interface = {
keyboard_release,
};
void
meta_wayland_keyboard_create_new_resource (MetaWaylandKeyboard *keyboard,
struct wl_client *client,
struct wl_resource *seat_resource,
uint32_t id)
{
struct wl_resource *resource;
resource = wl_resource_create (client, &wl_keyboard_interface,
wl_resource_get_version (seat_resource), id);
wl_resource_set_implementation (resource, &keyboard_interface,
keyboard, unbind_resource);
wl_keyboard_send_keymap (resource,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
keyboard->xkb_info.keymap_fd,
keyboard->xkb_info.keymap_size);
notify_key_repeat_for_resource (keyboard, resource);
if (keyboard->focus_surface &&
wl_resource_get_client (keyboard->focus_surface->resource) == client)
{
wl_list_insert (&keyboard->focus_resource_list,
wl_resource_get_link (resource));
broadcast_focus (keyboard, resource);
}
else
{
wl_list_insert (&keyboard->resource_list,
wl_resource_get_link (resource));
}
}
gboolean
meta_wayland_keyboard_can_popup (MetaWaylandKeyboard *keyboard,
uint32_t serial)
{
return keyboard->key_serial == serial;
}
void
meta_wayland_keyboard_start_grab (MetaWaylandKeyboard *keyboard,
MetaWaylandKeyboardGrab *grab)
{
meta_wayland_keyboard_set_focus (keyboard, NULL);
keyboard->grab = grab;
grab->keyboard = keyboard;
}
void
meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard)
{
keyboard->grab = &keyboard->default_grab;
}
static void
meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard)
{
wl_list_init (&keyboard->resource_list);
wl_list_init (&keyboard->focus_resource_list);
meta_wayland_xkb_info_init (&keyboard->xkb_info);
keyboard->default_grab.interface = &default_keyboard_grab_interface;
keyboard->default_grab.keyboard = keyboard;
keyboard->grab = &keyboard->default_grab;
keyboard->focus_surface_listener.notify =
keyboard_handle_focus_surface_destroy;
}
static void
meta_wayland_keyboard_class_init (MetaWaylandKeyboardClass *klass)
{
}