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seat.c
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seat.c
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// Copyright 2020 - 2024, project-repo and the cagebreak contributors
// SPDX-License-Identifier: MIT
#define _POSIX_C_SOURCE 200812L
#include "config.h"
#include <linux/input-event-codes.h>
#include <stdint.h>
#include <string.h>
#include <wayland-server-core.h>
#include <wayland-server-protocol.h>
#include <wlr/backend.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_idle_notify_v1.h>
#include <wlr/types/wlr_keyboard_group.h>
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_touch.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/util/log.h>
#if CG_HAS_XWAYLAND
#include <wlr/xwayland.h>
#endif
#include "input_manager.h"
#include "keybinding.h"
#include "message.h"
#include "output.h"
#include "seat.h"
#include "server.h"
#include "view.h"
#include "workspace.h"
#if CG_HAS_XWAYLAND
#include "xwayland.h"
#endif
static void
drag_icon_update_position(struct cg_drag_icon *drag_icon);
static void
update_capabilities(const struct cg_seat *seat) {
uint32_t caps = 0;
if(seat->num_keyboards > 0) {
caps |= WL_SEAT_CAPABILITY_KEYBOARD;
}
if(seat->num_pointers > 0) {
caps |= WL_SEAT_CAPABILITY_POINTER;
}
if(seat->num_touch > 0) {
caps |= WL_SEAT_CAPABILITY_TOUCH;
}
wlr_seat_set_capabilities(seat->seat, caps);
/* Hide cursor if the seat doesn't have pointer capability. */
if(((caps & WL_SEAT_CAPABILITY_POINTER) == 0) ||
seat->enable_cursor == false) {
wlr_cursor_unset_image(seat->cursor);
} else {
wlr_cursor_set_xcursor(seat->cursor, seat->xcursor_manager,
DEFAULT_XCURSOR);
}
}
static void
remove_touch(struct cg_seat *seat, struct cg_touch *touch) {
if(!touch) {
return;
}
wlr_cursor_detach_input_device(seat->cursor, touch->device->wlr_device);
--seat->num_touch;
free(touch);
}
static void
new_touch(struct cg_seat *seat, struct cg_input_device *input_device) {
struct wlr_input_device *device = input_device->wlr_device;
struct wlr_touch *wlr_touch = wlr_touch_from_input_device(device);
struct cg_touch *touch = calloc(1, sizeof(struct cg_touch));
if(!touch) {
wlr_log(WLR_ERROR, "Cannot allocate touch");
return;
}
touch->seat = seat;
touch->device = input_device;
wlr_cursor_attach_input_device(seat->cursor, device);
input_device->touch = touch;
++seat->num_touch;
if(wlr_touch->output_name != NULL) {
struct cg_output *output;
wl_list_for_each(output, &seat->server->outputs, link) {
if(strcmp(wlr_touch->output_name, output->name) == 0) {
wlr_cursor_map_input_to_output(seat->cursor, device,
output->wlr_output);
break;
}
}
}
}
static void
remove_pointer(struct cg_seat *seat, struct cg_pointer *pointer) {
if(!pointer) {
return;
}
wlr_cursor_detach_input_device(seat->cursor, pointer->device->wlr_device);
--seat->num_pointers;
free(pointer);
}
static void
new_pointer(struct cg_seat *seat, struct cg_input_device *input_device) {
struct wlr_input_device *device = input_device->wlr_device;
struct wlr_pointer *wlr_pointer = wlr_pointer_from_input_device(device);
struct cg_pointer *pointer = calloc(1, sizeof(struct cg_pointer));
if(!pointer) {
wlr_log(WLR_ERROR, "Cannot allocate pointer");
return;
}
pointer->seat = seat;
pointer->device = input_device;
wlr_cursor_attach_input_device(seat->cursor, device);
input_device->pointer = pointer;
++seat->num_pointers;
if(wlr_pointer->output_name != NULL) {
struct cg_output *output;
wl_list_for_each(output, &seat->server->outputs, link) {
if(strcmp(wlr_pointer->output_name, output->name) == 0) {
wlr_cursor_map_input_to_output(seat->cursor, device,
output->wlr_output);
break;
}
}
}
}
static int
handle_keyboard_repeat(void *data) {
struct cg_keyboard_group *cg_group = data;
struct wlr_keyboard *wlr_device = &cg_group->wlr_group->keyboard;
if(cg_group->repeat_keybinding != NULL) {
if(wlr_device->repeat_info.rate > 0) {
if(wl_event_source_timer_update(
cg_group->key_repeat_timer,
1000 / wlr_device->repeat_info.rate) < 0) {
wlr_log(WLR_DEBUG, "failed to update key repeat timer");
}
}
run_action((*cg_group->repeat_keybinding)->action,
cg_group->seat->server,
(*cg_group->repeat_keybinding)->data);
}
return 0;
}
static void
handle_modifier_event(struct wlr_input_device *device, struct cg_seat *seat) {
struct wlr_keyboard *keyboard = wlr_keyboard_from_input_device(device);
wlr_seat_set_keyboard(seat->seat, keyboard);
wlr_seat_keyboard_notify_modifiers(seat->seat, &keyboard->modifiers);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
void
keyboard_disarm_key_repeat(struct cg_keyboard_group *group) {
if(!group) {
return;
}
group->repeat_keybinding = NULL;
if(wl_event_source_timer_update(group->key_repeat_timer, 0) < 0) {
wlr_log(WLR_DEBUG, "failed to disarm key repeat timer");
}
}
static bool
handle_command_key_bindings(struct cg_server *server, xkb_keysym_t sym,
uint32_t modifiers, uint32_t mode,
struct cg_keyboard_group *group) {
if(group->enable_keybindings == false) {
return false;
}
struct keybinding **keybinding = find_keybinding(
server->keybindings,
&(struct keybinding){.key = sym, .mode = mode, .modifiers = modifiers});
if(server->seat->mode != server->seat->default_mode) {
server->seat->mode =
server->seat
->default_mode; // Return to mode we are currently in by default
double sx, sy;
struct wlr_seat *wlr_seat = server->seat->seat;
struct wlr_surface *surface = NULL;
struct wlr_scene_node *node = wlr_scene_node_at(
&server->scene->tree.node, server->seat->cursor->x,
server->seat->cursor->y, &sx, &sy);
if(server->seat->enable_cursor) {
wlr_cursor_set_xcursor(server->seat->cursor,
server->seat->xcursor_manager, "left_ptr");
if(node && node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_try_from_buffer(
wlr_scene_buffer_from_node(node));
if(scene_surface != NULL) {
surface = scene_surface->surface;
if(surface != NULL) {
wlr_seat_pointer_notify_enter(wlr_seat, surface, sx,
sy);
}
}
}
}
}
if(keybinding) {
wlr_log(
WLR_DEBUG,
"Recognized keybinding pressed (key: %d, mode: %d, modifiers: %d)",
sym, mode, modifiers);
if(group->wlr_group->keyboard.repeat_info.delay > 0) {
group->repeat_keybinding = keybinding;
if(wl_event_source_timer_update(
group->key_repeat_timer,
group->wlr_group->keyboard.repeat_info.delay) < 0) {
wlr_log(WLR_DEBUG, "failed to set key repeat timer");
}
}
message_clear(group->seat->server->curr_output);
run_action((*keybinding)->action, server, (*keybinding)->data);
wlr_idle_notifier_v1_notify_activity(server->idle, server->seat->seat);
return true;
} else if(mode != 0) {
run_action(KEYBINDING_NOOP, server, (union keybinding_params){NULL});
message_printf(server->curr_output, "unbound key pressed");
wlr_log(WLR_DEBUG,
"Unknown keybinding pressed (key: %d, mode: %d, modifiers: %d)",
sym, mode, modifiers);
return true;
} else {
return false;
}
}
static bool
key_is_modifier(const xkb_keysym_t key) {
switch(key) {
case XKB_KEY_Shift_L:
case XKB_KEY_Shift_R:
case XKB_KEY_Control_L:
case XKB_KEY_Control_R:
case XKB_KEY_Alt_L:
case XKB_KEY_Alt_R:
case XKB_KEY_Super_L:
case XKB_KEY_Super_R:
case XKB_KEY_Hyper_L:
case XKB_KEY_Hyper_R:
return true;
default:
return false;
}
}
static void
handle_key_event(struct cg_keyboard_group *group, struct cg_seat *seat,
void *data) {
struct wlr_keyboard_key_event *event = data;
struct wlr_keyboard *keyboard = &group->wlr_group->keyboard;
/* Translate from libinput keycode to an xkbcommon keycode. */
xkb_keycode_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->xkb_state, keycode, &syms);
bool handled = false;
for(int i = 0; i < nsyms; ++i) {
if(event->state == WL_KEYBOARD_KEY_STATE_PRESSED &&
!key_is_modifier(syms[i])) {
uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard);
/* Get the consumed_modifiers and remove them from the modifier list
*/
xkb_mod_mask_t consumed_modifiers =
xkb_state_key_get_consumed_mods2(keyboard->xkb_state, keycode,
XKB_CONSUMED_MODE_GTK);
if(handle_command_key_bindings(seat->server, syms[i],
modifiers & ~consumed_modifiers,
seat->mode, group)) {
handled = true;
}
} else if(group->repeat_keybinding != NULL && handled == false) {
keyboard_disarm_key_repeat(group);
}
}
if(!handled) {
/* Otherwise, we pass it along to the client. */
wlr_seat_set_keyboard(seat->seat, keyboard);
wlr_seat_keyboard_notify_key(seat->seat, event->time_msec,
event->keycode, event->state);
}
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_keyboard_group_key(struct wl_listener *listener, void *data) {
struct cg_keyboard_group *cg_group =
wl_container_of(listener, cg_group, key);
handle_key_event(cg_group, cg_group->seat, data);
}
static void
handle_keyboard_group_modifiers(struct wl_listener *listener, void *_data) {
struct cg_keyboard_group *group =
wl_container_of(listener, group, modifiers);
handle_modifier_event(&group->wlr_group->keyboard.base, group->seat);
}
static bool
repeat_info_match(struct wlr_keyboard *a, struct wlr_keyboard *b) {
return a->repeat_info.rate == b->repeat_info.rate &&
a->repeat_info.delay == b->repeat_info.delay;
}
static void
cg_keyboard_group_add(struct cg_input_device *input_device,
struct cg_seat *seat) {
struct wlr_input_device *device = input_device->wlr_device;
struct wlr_keyboard *wlr_keyboard = wlr_keyboard_from_input_device(device);
// Virtual devices should not be grouped
if(!input_device->is_virtual) {
struct cg_keyboard_group *group;
wl_list_for_each(group, &seat->keyboard_groups, link) {
struct wlr_keyboard_group *wlr_group = group->wlr_group;
if(wlr_keyboard_keymaps_match(wlr_keyboard->keymap,
wlr_group->keyboard.keymap) &&
repeat_info_match(wlr_keyboard, &wlr_group->keyboard) &&
wlr_keyboard_group_add_keyboard(wlr_group, wlr_keyboard)) {
wlr_log(WLR_DEBUG, "Adding keyboard to existing group.");
return;
}
}
}
/* This is reached if and only if the keyboard could not be inserted into
* any group */
struct cg_keyboard_group *cg_group =
calloc(1, sizeof(struct cg_keyboard_group));
if(cg_group == NULL) {
wlr_log(WLR_ERROR, "Failed to allocate keyboard group.");
return;
}
cg_group->seat = seat;
cg_group->wlr_group = wlr_keyboard_group_create();
if(cg_group->wlr_group == NULL) {
wlr_log(WLR_ERROR, "Failed to create wlr keyboard group.");
goto cleanup;
}
cg_group->wlr_group->data = cg_group;
wlr_keyboard_set_keymap(&cg_group->wlr_group->keyboard,
wlr_keyboard->keymap);
wlr_keyboard_set_repeat_info(&cg_group->wlr_group->keyboard,
wlr_keyboard->repeat_info.rate,
wlr_keyboard->repeat_info.delay);
if(input_device->identifier != NULL) {
cg_group->identifier = strdup(input_device->identifier);
} else {
cg_group->identifier = NULL;
}
wlr_log(WLR_DEBUG, "Created keyboard group.");
wlr_keyboard_group_add_keyboard(cg_group->wlr_group, wlr_keyboard);
wl_list_insert(&seat->keyboard_groups, &cg_group->link);
wl_signal_add(&cg_group->wlr_group->keyboard.events.key, &cg_group->key);
cg_group->key.notify = handle_keyboard_group_key;
wl_signal_add(&cg_group->wlr_group->keyboard.events.modifiers,
&cg_group->modifiers);
cg_group->key_repeat_timer = wl_event_loop_add_timer(
seat->server->event_loop, handle_keyboard_repeat, cg_group);
cg_group->modifiers.notify = handle_keyboard_group_modifiers;
cg_group->enable_keybindings = true;
cg_input_manager_configure_keyboard_group(cg_group);
return;
cleanup:
if(cg_group && cg_group->wlr_group) {
wlr_keyboard_group_destroy(cg_group->wlr_group);
}
if(cg_group && cg_group->identifier) {
free(cg_group->identifier);
}
free(cg_group);
}
static void
new_keyboard(struct cg_seat *seat, struct cg_input_device *input_device) {
struct wlr_input_device *device = input_device->wlr_device;
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if(!context) {
wlr_log(WLR_ERROR, "Unable to create XKB context");
return;
}
struct xkb_keymap *keymap =
xkb_map_new_from_names(context, NULL, XKB_KEYMAP_COMPILE_NO_FLAGS);
if(!keymap) {
wlr_log(WLR_ERROR,
"Unable to configure keyboard: keymap does not exist");
xkb_context_unref(context);
return;
}
wlr_keyboard_set_keymap(wlr_keyboard_from_input_device(device), keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
cg_keyboard_group_add(input_device, seat);
++seat->num_keyboards;
wlr_seat_set_keyboard(seat->seat, wlr_keyboard_from_input_device(device));
}
void
seat_add_device(struct cg_seat *seat, struct cg_input_device *device) {
switch(device->wlr_device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
new_keyboard(seat, device);
break;
case WLR_INPUT_DEVICE_POINTER:
new_pointer(seat, device);
break;
case WLR_INPUT_DEVICE_TOUCH:
new_touch(seat, device);
break;
case WLR_INPUT_DEVICE_SWITCH:
wlr_log(WLR_DEBUG, "Switch input is not implemented");
return;
case WLR_INPUT_DEVICE_TABLET_TOOL:
case WLR_INPUT_DEVICE_TABLET_PAD:
wlr_log(WLR_DEBUG, "Tablet input is not implemented");
return;
}
update_capabilities(seat);
}
static void
destroy_empty_wlr_keyboard_group(void *data) {
wlr_keyboard_group_destroy(data);
}
void
remove_keyboard(struct cg_seat *seat, struct cg_input_device *keyboard) {
if(!keyboard) {
return;
}
struct wlr_seat *wlr_seat = seat->seat;
struct wlr_keyboard *wlr_keyboard =
wlr_keyboard_from_input_device(keyboard->wlr_device);
struct wlr_keyboard_group *wlr_group = wlr_keyboard->group;
if(wlr_group) {
wlr_keyboard_group_remove_keyboard(wlr_group, wlr_keyboard);
if(wl_list_empty(&wlr_group->devices)) {
wlr_log(WLR_DEBUG, "Destroying empty keyboard group %p",
(void *)wlr_group);
struct cg_keyboard_group *group = wlr_group->data;
if(wlr_seat_get_keyboard(wlr_seat) == &wlr_group->keyboard) {
wlr_seat_set_keyboard(wlr_seat, NULL);
}
wlr_group->data = NULL;
wl_list_remove(&group->link);
wl_list_remove(&group->key.link);
wl_list_remove(&group->modifiers.link);
if(group->identifier != NULL) {
free(group->identifier);
}
free(group);
// To prevent use-after-free conditions when handling key events,
// defer freeing the wlr_keyboard_group until idle
wl_event_loop_add_idle(seat->server->event_loop,
destroy_empty_wlr_keyboard_group, wlr_group);
}
}
--seat->num_keyboards;
}
void
seat_remove_device(struct cg_seat *seat, struct cg_input_device *device) {
switch(device->wlr_device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
remove_keyboard(seat, device);
break;
case WLR_INPUT_DEVICE_POINTER:
remove_pointer(seat, device->pointer);
device->pointer = NULL;
break;
case WLR_INPUT_DEVICE_TOUCH:
remove_touch(seat, device->touch);
device->touch = NULL;
break;
case WLR_INPUT_DEVICE_SWITCH:
wlr_log(WLR_DEBUG, "Switch input is not implemented");
return;
case WLR_INPUT_DEVICE_TABLET_TOOL:
case WLR_INPUT_DEVICE_TABLET_PAD:
wlr_log(WLR_DEBUG, "Tablet input is not implemented");
return;
}
update_capabilities(seat);
}
static void
handle_request_set_primary_selection(struct wl_listener *listener, void *data) {
struct cg_seat *seat =
wl_container_of(listener, seat, request_set_primary_selection);
struct wlr_seat_request_set_primary_selection_event *event = data;
wlr_seat_set_primary_selection(seat->seat, event->source, event->serial);
}
static void
handle_request_set_selection(struct wl_listener *listener, void *data) {
struct cg_seat *seat =
wl_container_of(listener, seat, request_set_selection);
struct wlr_seat_request_set_selection_event *event = data;
wlr_seat_set_selection(seat->seat, event->source, event->serial);
}
static void
handle_request_set_cursor(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, request_set_cursor);
if(seat->enable_cursor == false || seat->mode != seat->default_mode) {
return;
}
struct wlr_seat_pointer_request_set_cursor_event *event = data;
struct wlr_surface *focused_surface =
event->seat_client->seat->pointer_state.focused_surface;
bool has_focused =
focused_surface != NULL && focused_surface->resource != NULL;
struct wl_client *focused_client = NULL;
if(has_focused) {
focused_client = wl_resource_get_client(focused_surface->resource);
}
/* This can be sent by any client, so we check to make sure
* this one actually has pointer focus first. */
if(focused_client == event->seat_client->client) {
wlr_cursor_set_surface(seat->cursor, event->surface, event->hotspot_x,
event->hotspot_y);
}
}
static void
handle_touch_down(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, touch_down);
struct wlr_touch_down_event *event = data;
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor, &event->touch->base,
event->x, event->y, &lx, &ly);
double sx, sy;
struct wlr_scene_node *node =
wlr_scene_node_at(&seat->server->scene->tree.node, lx, ly, &sx, &sy);
uint32_t serial = 0;
if(node && node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_try_from_buffer(wlr_scene_buffer_from_node(node));
if(scene_surface != NULL) {
serial = wlr_seat_touch_notify_down(
seat->seat, scene_surface->surface, event->time_msec,
event->touch_id, sx, sy);
}
}
if(serial && wlr_seat_touch_num_points(seat->seat) == 1) {
seat->touch_id = event->touch_id;
seat->touch_lx = lx;
seat->touch_ly = ly;
}
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_touch_up(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, touch_up);
struct wlr_touch_up_event *event = data;
if(!wlr_seat_touch_get_point(seat->seat, event->touch_id)) {
return;
}
wlr_seat_touch_notify_up(seat->seat, event->time_msec, event->touch_id);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_touch_motion(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, touch_motion);
struct wlr_touch_motion_event *event = data;
if(!wlr_seat_touch_get_point(seat->seat, event->touch_id)) {
return;
}
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor, &event->touch->base,
event->x, event->y, &lx, &ly);
double sx, sy;
struct wlr_scene_node *node =
wlr_scene_node_at(&seat->server->scene->tree.node, lx, ly, &sx, &sy);
if(node && node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_try_from_buffer(wlr_scene_buffer_from_node(node));
if(scene_surface != NULL) {
wlr_seat_touch_point_focus(seat->seat, scene_surface->surface,
event->time_msec, event->touch_id, sx,
sy);
}
wlr_seat_touch_notify_motion(seat->seat, event->time_msec,
event->touch_id, sx, sy);
} else {
wlr_seat_touch_point_clear_focus(seat->seat, event->time_msec,
event->touch_id);
}
if(event->touch_id == seat->touch_id) {
seat->touch_lx = lx;
seat->touch_ly = ly;
}
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_cursor_frame(struct wl_listener *listener, void *_data) {
struct cg_seat *seat = wl_container_of(listener, seat, cursor_frame);
wlr_seat_pointer_notify_frame(seat->seat);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_cursor_axis(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, cursor_axis);
struct wlr_pointer_axis_event *event = data;
wlr_seat_pointer_notify_axis(seat->seat, event->time_msec,
event->orientation, event->delta,
event->delta_discrete, event->source);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_cursor_button(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, cursor_button);
struct wlr_pointer_button_event *event = data;
wlr_seat_pointer_notify_button(seat->seat, event->time_msec, event->button,
event->state);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
process_cursor_motion(struct cg_seat *seat, uint32_t time) {
double sx, sy;
struct wlr_seat *wlr_seat = seat->seat;
struct wlr_surface *surface = NULL;
struct wlr_scene_node *node =
wlr_scene_node_at(&seat->server->scene->tree.node, seat->cursor->x,
seat->cursor->y, &sx, &sy);
if(node && node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_try_from_buffer(wlr_scene_buffer_from_node(node));
if(scene_surface != NULL) {
surface = scene_surface->surface;
if(surface != NULL) {
wlr_seat_pointer_notify_enter(wlr_seat, surface, sx, sy);
}
}
bool focus_changed = wlr_seat->pointer_state.focused_surface != surface;
if(!focus_changed && time > 0) {
wlr_seat_pointer_notify_motion(wlr_seat, time, sx, sy);
}
} else {
wlr_seat_pointer_clear_focus(wlr_seat);
}
struct cg_drag_icon *drag_icon;
wl_list_for_each(drag_icon, &seat->drag_icons, link) {
drag_icon_update_position(drag_icon);
}
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
/* Check if cursor switched tile */
struct wlr_output *c_outp = wlr_output_layout_output_at(
seat->server->output_layout, seat->cursor->x, seat->cursor->y);
struct cg_output *cg_outp = NULL;
wl_list_for_each(cg_outp, &seat->server->outputs, link) {
if(cg_outp->wlr_output == c_outp) {
break;
}
}
if(c_outp) {
struct cg_tile *c_tile;
bool first = true;
for(c_tile = cg_outp->workspaces[cg_outp->curr_workspace]->focused_tile;
first ||
c_tile !=
cg_outp->workspaces[cg_outp->curr_workspace]->focused_tile;
c_tile = c_tile->next) {
first = false;
double ox = seat->cursor->x, oy = seat->cursor->y;
wlr_output_layout_output_coords(seat->server->output_layout, c_outp,
&ox, &oy);
if(c_tile->tile.x <= ox && c_tile->tile.y <= oy &&
c_tile->tile.x + c_tile->tile.width >= ox &&
c_tile->tile.y + c_tile->tile.height >= oy) {
break;
}
}
if(seat->cursor_tile != NULL && seat->cursor_tile != c_tile &&
seat->server->running) {
ipc_send_event(
seat->server,
"{\"event_name\":\"cursor_switch_tile\",\"old_output\":"
"\"%s\",\"old_output_id\":%d,"
"\"old_tile\":%d,\"new_output\":\"%s\",\"new_output_"
"id\":%d,\"new_tile\":%d}",
seat->cursor_tile->workspace->output->name,
output_get_num(seat->cursor_tile->workspace->output),
seat->cursor_tile->id, c_outp->name, output_get_num(cg_outp),
c_tile->id);
}
seat->cursor_tile = c_tile;
}
}
static void
handle_cursor_motion_absolute(struct wl_listener *listener, void *data) {
struct cg_seat *seat =
wl_container_of(listener, seat, cursor_motion_absolute);
struct wlr_pointer_motion_absolute_event *event = data;
wlr_cursor_warp_absolute(seat->cursor, &event->pointer->base, event->x,
event->y);
process_cursor_motion(seat, event->time_msec);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
handle_cursor_motion(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, cursor_motion);
struct wlr_pointer_motion_event *event = data;
wlr_cursor_move(seat->cursor, &event->pointer->base, event->delta_x,
event->delta_y);
process_cursor_motion(seat, event->time_msec);
wlr_idle_notifier_v1_notify_activity(seat->server->idle, seat->seat);
}
static void
drag_icon_update_position(struct cg_drag_icon *drag_icon) {
struct wlr_drag_icon *wlr_icon = drag_icon->wlr_drag_icon;
struct cg_seat *seat = drag_icon->seat;
struct wlr_touch_point *point;
switch(wlr_icon->drag->grab_type) {
case WLR_DRAG_GRAB_KEYBOARD:
return;
case WLR_DRAG_GRAB_KEYBOARD_POINTER:
drag_icon->lx = seat->cursor->x;
drag_icon->ly = seat->cursor->y;
break;
case WLR_DRAG_GRAB_KEYBOARD_TOUCH:
point = wlr_seat_touch_get_point(seat->seat, wlr_icon->drag->touch_id);
if(!point) {
return;
}
drag_icon->lx = seat->touch_lx;
drag_icon->ly = seat->touch_ly;
break;
}
wlr_scene_node_set_position(&drag_icon->scene_tree->node, drag_icon->lx,
drag_icon->ly);
}
static void
handle_drag_icon_destroy(struct wl_listener *listener, void *_data) {
struct cg_drag_icon *drag_icon =
wl_container_of(listener, drag_icon, destroy);
wl_list_remove(&drag_icon->link);
wl_list_remove(&drag_icon->destroy.link);
wlr_scene_node_destroy(&drag_icon->scene_tree->node);
free(drag_icon);
}
static void
handle_request_start_drag(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, request_start_drag);
struct wlr_seat_request_start_drag_event *event = data;
if(wlr_seat_validate_pointer_grab_serial(seat->seat, event->origin,
event->serial)) {
wlr_seat_start_pointer_drag(seat->seat, event->drag, event->serial);
return;
}
struct wlr_touch_point *point;
if(wlr_seat_validate_touch_grab_serial(seat->seat, event->origin,
event->serial, &point)) {
wlr_seat_start_touch_drag(seat->seat, event->drag, event->serial,
point);
return;
}
wlr_log(WLR_DEBUG,
"Ignoring start_drag request: "
"could not validate pointer/touch serial %" PRIu32,
event->serial);
wlr_data_source_destroy(event->drag->source);
}
static void
handle_start_drag(struct wl_listener *listener, void *data) {
struct cg_seat *seat = wl_container_of(listener, seat, start_drag);
struct wlr_drag *wlr_drag = data;
struct wlr_drag_icon *wlr_drag_icon = wlr_drag->icon;
if(wlr_drag_icon == NULL) {
return;
}
struct cg_drag_icon *drag_icon = calloc(1, sizeof(struct cg_drag_icon));
if(!drag_icon) {
return;
}
drag_icon->seat = seat;
drag_icon->wlr_drag_icon = wlr_drag_icon;
drag_icon->scene_tree = wlr_scene_subsurface_tree_create(
&seat->server->scene->tree, wlr_drag_icon->surface);
if(!drag_icon->scene_tree) {
free(drag_icon);
return;
}
drag_icon->destroy.notify = handle_drag_icon_destroy;
wl_signal_add(&wlr_drag_icon->events.destroy, &drag_icon->destroy);
wl_list_insert(&seat->drag_icons, &drag_icon->link);
drag_icon_update_position(drag_icon);
}
static void
handle_destroy(struct wl_listener *listener, void *_data) {
struct cg_seat *seat = wl_container_of(listener, seat, destroy);
wl_list_remove(&seat->destroy.link);
struct cg_keyboard_group *group, *group_tmp;
wl_list_for_each_safe(group, group_tmp, &seat->keyboard_groups, link) {
wl_list_remove(&group->link);
wlr_keyboard_group_destroy(group->wlr_group);
wl_event_source_remove(group->key_repeat_timer);
if(group->identifier) {
free(group->identifier);
}
free(group);
}
struct cg_input_device *it, *it_tmp;
wl_list_for_each_safe(it, it_tmp, &seat->server->input->devices, link) {
input_manager_handle_device_destroy(&it->device_destroy, NULL);
}
wlr_xcursor_manager_destroy(seat->xcursor_manager);
if(seat->cursor) {
wlr_cursor_destroy(seat->cursor);
}
wl_list_remove(&seat->cursor_motion.link);
wl_list_remove(&seat->cursor_motion_absolute.link);
wl_list_remove(&seat->cursor_button.link);
wl_list_remove(&seat->cursor_axis.link);
wl_list_remove(&seat->cursor_frame.link);
wl_list_remove(&seat->touch_down.link);
wl_list_remove(&seat->touch_up.link);
wl_list_remove(&seat->touch_motion.link);
wl_list_remove(&seat->request_set_cursor.link);
wl_list_remove(&seat->request_set_selection.link);
wl_list_remove(&seat->request_set_primary_selection.link);
seat->server->seat = NULL;
free(seat);
}
struct cg_seat *
seat_create(struct cg_server *server, struct wlr_backend *backend) {
struct cg_seat *seat = calloc(1, sizeof(struct cg_seat));
if(!seat) {
wlr_log(WLR_ERROR, "Cannot allocate seat");
return NULL;
}
seat->enable_cursor = true;
seat->seat = wlr_seat_create(server->wl_display, "seat0");
if(!seat->seat) {
wlr_log(WLR_ERROR, "Cannot allocate seat0");
free(seat);
return NULL;
}
seat->server = server;
seat->destroy.notify = handle_destroy;
wl_signal_add(&seat->seat->events.destroy, &seat->destroy);
seat->cursor = wlr_cursor_create();
if(!seat->cursor) {
wlr_log(WLR_ERROR, "Unable to create cursor");
wl_list_remove(&seat->destroy.link);
free(seat);
return NULL;
}
wlr_cursor_attach_output_layout(seat->cursor, server->output_layout);
if(!seat->xcursor_manager) {
seat->xcursor_manager =
wlr_xcursor_manager_create(NULL, server->xcursor_size);
if(!seat->xcursor_manager) {
wlr_log(WLR_ERROR, "Cannot create XCursor manager");
wlr_cursor_destroy(seat->cursor);
wl_list_remove(&seat->destroy.link);
free(seat);
return NULL;
}
}
seat->cursor_motion.notify = handle_cursor_motion;
wl_signal_add(&seat->cursor->events.motion, &seat->cursor_motion);
seat->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
wl_signal_add(&seat->cursor->events.motion_absolute,
&seat->cursor_motion_absolute);
seat->cursor_button.notify = handle_cursor_button;
wl_signal_add(&seat->cursor->events.button, &seat->cursor_button);
seat->cursor_axis.notify = handle_cursor_axis;
wl_signal_add(&seat->cursor->events.axis, &seat->cursor_axis);
seat->cursor_frame.notify = handle_cursor_frame;
wl_signal_add(&seat->cursor->events.frame, &seat->cursor_frame);
seat->touch_down.notify = handle_touch_down;
wl_signal_add(&seat->cursor->events.touch_down, &seat->touch_down);
seat->touch_up.notify = handle_touch_up;
wl_signal_add(&seat->cursor->events.touch_up, &seat->touch_up);
seat->touch_motion.notify = handle_touch_motion;
wl_signal_add(&seat->cursor->events.touch_motion, &seat->touch_motion);
seat->request_set_cursor.notify = handle_request_set_cursor;
wl_signal_add(&seat->seat->events.request_set_cursor,
&seat->request_set_cursor);
seat->request_set_selection.notify = handle_request_set_selection;
wl_signal_add(&seat->seat->events.request_set_selection,
&seat->request_set_selection);
seat->request_set_primary_selection.notify =
handle_request_set_primary_selection;
wl_signal_add(&seat->seat->events.request_set_primary_selection,
&seat->request_set_primary_selection);
wl_list_init(&seat->keyboard_groups);
seat->num_keyboards = 0;
seat->num_pointers = 0;
seat->num_touch = 0;
wl_list_init(&seat->drag_icons);