mutter/src/wayland/meta-wayland-tablet-pad.c
Carlos Garnacho 2f492c133c wayland: Fix label lookup on >1 strips/rings
We assumed that each group could only have 1 strip and/or ring, because
accounting is performed per group, so we could not assume the real
index for anything above 1. Get rid of this restriction, now that
MetaWaylandTabletPad does its own accounting of rings/strips, alongside
groups.
2016-07-22 13:31:09 +02:00

611 lines
18 KiB
C

/*
* Wayland Support
*
* Copyright (C) 2016 Red Hat
*
* 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.
*
* Author: Carlos Garnacho <carlosg@gnome.org>
*/
#define _GNU_SOURCE
#include "config.h"
#include <glib.h>
#include <glib/gi18n-lib.h>
#include <wayland-server.h>
#include "tablet-unstable-v2-server-protocol.h"
#include "backends/meta-input-settings-private.h"
#include "meta-surface-actor-wayland.h"
#include "meta-wayland-private.h"
#include "meta-wayland-tablet-seat.h"
#include "meta-wayland-tablet.h"
#include "meta-wayland-tablet-pad.h"
#include "meta-wayland-tablet-pad-group.h"
#include "meta-wayland-tablet-pad-ring.h"
#include "meta-wayland-tablet-pad-strip.h"
#ifdef HAVE_NATIVE_BACKEND
#include <clutter/evdev/clutter-evdev.h>
#include "backends/native/meta-backend-native.h"
#endif
static void
unbind_resource (struct wl_resource *resource)
{
wl_list_remove (wl_resource_get_link (resource));
}
static void
pad_handle_focus_surface_destroy (struct wl_listener *listener,
void *data)
{
MetaWaylandTabletPad *pad = wl_container_of (listener, pad, focus_surface_listener);
meta_wayland_tablet_pad_set_focus (pad, NULL);
}
static void
group_rings_strips (MetaWaylandTabletPad *pad)
{
gint n_group, n_elem;
GList *g, *l;
#ifdef HAVE_NATIVE_BACKEND
MetaBackend *backend = meta_get_backend ();
struct libinput_device *libinput_device = NULL;
if (META_IS_BACKEND_NATIVE (backend))
libinput_device = clutter_evdev_input_device_get_libinput_device (pad->device);
#endif
for (n_group = 0, g = pad->groups; g; g = g->next)
{
MetaWaylandTabletPadGroup *group = g->data;
#ifdef HAVE_NATIVE_BACKEND
struct libinput_tablet_pad_mode_group *mode_group = NULL;
if (libinput_device)
mode_group = libinput_device_tablet_pad_get_mode_group (libinput_device, n_group);
#endif
for (n_elem = 0, l = pad->rings; l; l = l->next)
{
MetaWaylandTabletPadRing *ring = l->data;
#ifdef HAVE_NATIVE_BACKEND
if (mode_group)
{
if (libinput_tablet_pad_mode_group_has_ring (mode_group, n_elem))
meta_wayland_tablet_pad_ring_set_group (ring, group);
}
else
#endif
{
/* Assign everything to the first group */
if (n_group == 0)
meta_wayland_tablet_pad_ring_set_group (ring, group);
}
n_elem++;
}
for (n_elem = 0, l = pad->strips; l; l = l->next)
{
MetaWaylandTabletPadStrip *strip = l->data;
#ifdef HAVE_NATIVE_BACKEND
if (mode_group)
{
if (libinput_tablet_pad_mode_group_has_strip (mode_group, n_elem))
meta_wayland_tablet_pad_strip_set_group (strip, group);
}
else
#endif
{
/* Assign everything to the first group */
if (n_group == 0)
meta_wayland_tablet_pad_strip_set_group (strip, group);
}
n_elem++;
}
n_group++;
}
}
MetaWaylandTabletPad *
meta_wayland_tablet_pad_new (ClutterInputDevice *device,
MetaWaylandTabletSeat *tablet_seat)
{
MetaBackend *backend = meta_get_backend ();
MetaWaylandTabletPad *pad;
guint n_elems, i;
pad = g_slice_new0 (MetaWaylandTabletPad);
wl_list_init (&pad->resource_list);
wl_list_init (&pad->focus_resource_list);
pad->focus_surface_listener.notify = pad_handle_focus_surface_destroy;
pad->device = device;
pad->tablet_seat = tablet_seat;
pad->feedback = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) g_free);
#ifdef HAVE_NATIVE_BACKEND
/* Buttons, only can be honored this with the native backend */
if (META_IS_BACKEND_NATIVE (backend))
{
struct libinput_device *libinput_device;
libinput_device = clutter_evdev_input_device_get_libinput_device (device);
pad->n_buttons = libinput_device_tablet_pad_get_num_buttons (libinput_device);
}
#endif
n_elems = clutter_input_device_get_n_mode_groups (pad->device);
for (i = 0; i < n_elems; i++)
{
pad->groups = g_list_prepend (pad->groups,
meta_wayland_tablet_pad_group_new (pad));
}
n_elems = clutter_input_device_get_n_rings (pad->device);
for (i = 0; i < n_elems; i++)
{
MetaWaylandTabletPadRing *ring;
ring = meta_wayland_tablet_pad_ring_new (pad);
pad->rings = g_list_prepend (pad->rings, ring);
}
n_elems = clutter_input_device_get_n_strips (pad->device);
for (i = 0; i < n_elems; i++)
{
MetaWaylandTabletPadStrip *strip;
strip = meta_wayland_tablet_pad_strip_new (pad);
pad->strips = g_list_prepend (pad->strips, strip);
}
group_rings_strips (pad);
return pad;
}
void
meta_wayland_tablet_pad_free (MetaWaylandTabletPad *pad)
{
struct wl_resource *resource, *next;
meta_wayland_tablet_pad_set_focus (pad, NULL);
wl_resource_for_each_safe (resource, next, &pad->resource_list)
{
zwp_tablet_pad_v2_send_removed (resource);
wl_list_remove (wl_resource_get_link (resource));
wl_list_init (wl_resource_get_link (resource));
}
g_list_free_full (pad->groups,
(GDestroyNotify) meta_wayland_tablet_pad_group_free);
g_list_free_full (pad->rings,
(GDestroyNotify) meta_wayland_tablet_pad_ring_free);
g_list_free_full (pad->strips,
(GDestroyNotify) meta_wayland_tablet_pad_strip_free);
g_hash_table_destroy (pad->feedback);
g_slice_free (MetaWaylandTabletPad, pad);
}
static void
tablet_pad_set_feedback (struct wl_client *client,
struct wl_resource *resource,
uint32_t button,
const char *str,
uint32_t serial)
{
MetaWaylandTabletPad *pad = wl_resource_get_user_data (resource);
/* FIXME: check serial */
g_hash_table_insert (pad->feedback, GUINT_TO_POINTER (button), g_strdup (str));
}
static void
tablet_pad_destroy (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static const struct zwp_tablet_pad_v2_interface pad_interface = {
tablet_pad_set_feedback,
tablet_pad_destroy,
};
void
meta_wayland_tablet_pad_notify (MetaWaylandTabletPad *pad,
struct wl_resource *resource)
{
struct wl_client *client = wl_resource_get_client (resource);
GList *l;
zwp_tablet_pad_v2_send_path (resource, clutter_input_device_get_device_node (pad->device));
zwp_tablet_pad_v2_send_buttons (resource, pad->n_buttons);
for (l = pad->groups; l; l = l->next)
{
MetaWaylandTabletPadGroup *group = l->data;
struct wl_resource *group_resource;
group_resource = meta_wayland_tablet_pad_group_create_new_resource (group,
client,
resource,
0);
zwp_tablet_pad_v2_send_group (resource, group_resource);
meta_wayland_tablet_pad_group_notify (group, group_resource);
}
zwp_tablet_pad_v2_send_done (resource);
}
struct wl_resource *
meta_wayland_tablet_pad_create_new_resource (MetaWaylandTabletPad *pad,
struct wl_client *client,
struct wl_resource *seat_resource,
uint32_t id)
{
struct wl_resource *resource;
resource = wl_resource_create (client, &zwp_tablet_pad_v2_interface,
wl_resource_get_version (seat_resource), id);
wl_resource_set_implementation (resource, &pad_interface,
pad, unbind_resource);
wl_resource_set_user_data (resource, pad);
wl_list_insert (&pad->resource_list, wl_resource_get_link (resource));
return resource;
}
struct wl_resource *
meta_wayland_tablet_pad_lookup_resource (MetaWaylandTabletPad *pad,
struct wl_client *client)
{
struct wl_resource *resource;
resource = wl_resource_find_for_client (&pad->resource_list, client);
if (!resource)
resource = wl_resource_find_for_client (&pad->focus_resource_list, client);
return resource;
}
static gboolean
handle_pad_button_event (MetaWaylandTabletPad *pad,
const ClutterEvent *event)
{
enum zwp_tablet_pad_v2_button_state button_state;
struct wl_list *focus_resources = &pad->focus_resource_list;
struct wl_resource *resource;
if (wl_list_empty (focus_resources))
return FALSE;
if (event->type == CLUTTER_PAD_BUTTON_PRESS)
button_state = ZWP_TABLET_TOOL_V2_BUTTON_STATE_PRESSED;
else if (event->type == CLUTTER_PAD_BUTTON_RELEASE)
button_state = ZWP_TABLET_TOOL_V2_BUTTON_STATE_RELEASED;
else
return FALSE;
wl_resource_for_each (resource, focus_resources)
{
zwp_tablet_pad_v2_send_button (resource,
clutter_event_get_time (event),
event->pad_button.button, button_state);
}
return TRUE;
}
static void
meta_wayland_tablet_pad_update_action (MetaWaylandTabletPad *pad,
const ClutterEvent *event)
{
MetaInputSettings *input_settings;
ClutterInputDevice *device;
guint button;
button = event->pad_button.button;
device = clutter_event_get_source_device (event);
input_settings = meta_backend_get_input_settings (meta_get_backend ());
if (!input_settings)
return;
meta_input_settings_handle_pad_button (input_settings, device,
event->type == CLUTTER_PAD_BUTTON_PRESS,
button);
}
static gboolean
meta_wayland_tablet_pad_handle_event_action (MetaWaylandTabletPad *pad,
const ClutterEvent *event)
{
MetaInputSettings *input_settings;
ClutterInputDevice *device;
device = clutter_event_get_source_device (event);
input_settings = meta_backend_get_input_settings (meta_get_backend ());
if (input_settings &&
meta_input_settings_is_pad_button_grabbed (input_settings, device,
event->pad_button.button))
return TRUE;
return FALSE;
}
gboolean
meta_wayland_tablet_pad_handle_event (MetaWaylandTabletPad *pad,
const ClutterEvent *event)
{
MetaWaylandTabletPadGroup *group;
gboolean handled = FALSE;
guint n_group;
n_group = clutter_event_get_mode_group (event);
group = g_list_nth_data (pad->groups, n_group);
switch (clutter_event_type (event))
{
case CLUTTER_PAD_BUTTON_PRESS:
case CLUTTER_PAD_BUTTON_RELEASE:
if (group)
handled |= meta_wayland_tablet_pad_group_handle_event (group, event);
handled |= meta_wayland_tablet_pad_handle_event_action (pad, event);
if (handled)
return TRUE;
return handle_pad_button_event (pad, event);
case CLUTTER_PAD_RING:
case CLUTTER_PAD_STRIP:
if (group)
return meta_wayland_tablet_pad_group_handle_event (group, event);
default:
return FALSE;
}
}
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
meta_wayland_tablet_pad_update_groups_focus (MetaWaylandTabletPad *pad)
{
GList *l;
for (l = pad->groups; l; l = l->next)
meta_wayland_tablet_pad_group_sync_focus (l->data);
}
static void
meta_wayland_tablet_pad_broadcast_enter (MetaWaylandTabletPad *pad,
uint32_t serial,
MetaWaylandTablet *tablet,
MetaWaylandSurface *surface)
{
struct wl_resource *resource, *tablet_resource;
struct wl_client *client;
client = wl_resource_get_client (pad->focus_surface->resource);
tablet_resource = meta_wayland_tablet_lookup_resource (tablet, client);
wl_resource_for_each (resource, &pad->focus_resource_list)
{
zwp_tablet_pad_v2_send_enter (resource, serial,
tablet_resource,
surface->resource);
}
}
static void
meta_wayland_tablet_pad_broadcast_leave (MetaWaylandTabletPad *pad,
uint32_t serial,
MetaWaylandSurface *surface)
{
struct wl_resource *resource;
wl_resource_for_each (resource, &pad->focus_resource_list)
{
zwp_tablet_pad_v2_send_leave (resource, serial,
surface->resource);
}
}
void
meta_wayland_tablet_pad_set_focus (MetaWaylandTabletPad *pad,
MetaWaylandSurface *surface)
{
MetaWaylandTablet *tablet;
if (pad->focus_surface == surface)
return;
g_hash_table_remove_all (pad->feedback);
if (pad->focus_surface != NULL)
{
struct wl_client *client = wl_resource_get_client (pad->focus_surface->resource);
struct wl_list *focus_resources = &pad->focus_resource_list;
if (!wl_list_empty (focus_resources))
{
struct wl_display *display = wl_client_get_display (client);
uint32_t serial = wl_display_next_serial (display);
meta_wayland_tablet_pad_broadcast_leave (pad, serial,
pad->focus_surface);
move_resources (&pad->resource_list, &pad->focus_resource_list);
}
wl_list_remove (&pad->focus_surface_listener.link);
pad->focus_surface = NULL;
}
tablet = meta_wayland_tablet_seat_lookup_paired_tablet (pad->tablet_seat,
pad);
if (tablet != NULL && surface != NULL)
{
struct wl_client *client;
pad->focus_surface = surface;
wl_resource_add_destroy_listener (pad->focus_surface->resource,
&pad->focus_surface_listener);
client = wl_resource_get_client (pad->focus_surface->resource);
move_resources_for_client (&pad->focus_resource_list,
&pad->resource_list, client);
if (!wl_list_empty (&pad->focus_resource_list))
{
struct wl_display *display = wl_client_get_display (client);
pad->focus_serial = wl_display_next_serial (display);
meta_wayland_tablet_pad_broadcast_enter (pad, pad->focus_serial,
tablet, pad->focus_surface);
}
}
meta_wayland_tablet_pad_update_groups_focus (pad);
}
void
meta_wayland_tablet_pad_update (MetaWaylandTabletPad *pad,
const ClutterEvent *event)
{
MetaWaylandTabletPadGroup *group;
guint n_group;
n_group = clutter_event_get_mode_group (event);
group = g_list_nth_data (pad->groups, n_group);
if (group)
meta_wayland_tablet_pad_group_update (group, event);
switch (event->type)
{
case CLUTTER_PAD_BUTTON_PRESS:
case CLUTTER_PAD_BUTTON_RELEASE:
meta_wayland_tablet_pad_update_action (pad, event);
break;
case CLUTTER_PAD_RING:
case CLUTTER_PAD_STRIP:
default:
break;
}
}
static gchar *
meta_wayland_tablet_pad_label_mode_switch_button (MetaWaylandTabletPad *pad,
guint button)
{
MetaWaylandTabletPadGroup *group;
GList *l;
for (l = pad->groups; l; l = l->next)
{
group = l->data;
if (meta_wayland_tablet_pad_group_is_mode_switch_button (group, button))
return g_strdup_printf (_("Mode Switch: Mode %d"), group->current_mode + 1);
}
return NULL;
}
gchar *
meta_wayland_tablet_pad_get_label (MetaWaylandTabletPad *pad,
MetaPadActionType type,
guint action)
{
const gchar *label = NULL;
gchar *mode_label;
switch (type)
{
case META_PAD_ACTION_BUTTON:
mode_label = meta_wayland_tablet_pad_label_mode_switch_button (pad, action);
if (mode_label)
return mode_label;
label = g_hash_table_lookup (pad->feedback, GUINT_TO_POINTER (action));
break;
case META_PAD_ACTION_RING:
{
MetaWaylandTabletPadRing *ring;
ring = g_list_nth_data (pad->rings, action);
if (ring)
label = ring->feedback;
break;
}
case META_PAD_ACTION_STRIP:
{
MetaWaylandTabletPadStrip *strip;
strip = g_list_nth_data (pad->strips, action);
if (strip)
label = strip->feedback;
break;
}
}
return g_strdup (label);
}