wvkbd/main.c
John Sullivan 590b75b23a Init
2020-09-13 04:44:15 -07:00

353 lines
12 KiB
C

#include "proto/virtual-keyboard-unstable-v1-client-protocol.h"
#include "proto/wlr-layer-shell-unstable-v1-client-protocol.h"
#include "wld/wayland.h"
#include "wld/wld.h"
#include <linux/input-event-codes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <wayland-client.h>
#include "drw.h"
#include "keymap.h"
#include "os-compatibility.h"
/* lazy die macro */
#define die(...) \
fprintf(stderr, __VA_ARGS__); \
exit(0)
/* client state */
static const char *namespace = "wlroots";
static struct wl_display *display;
static struct wl_compositor *compositor;
static struct wl_seat *seat;
static struct wl_shm *shm;
static struct wl_pointer *pointer;
static struct wl_touch *touch;
static struct wl_output *wl_output;
static struct wl_surface *wl_surface;
static struct zwlr_layer_shell_v1 *layer_shell;
static struct zwlr_layer_surface_v1 *layer_surface;
static struct zwp_virtual_keyboard_manager_v1 *vkbd_mgr;
static uint32_t output = UINT32_MAX;
/* drawing */
static struct drw draw_ctx;
static struct drwsurf draw_surf;
/* layer surface parameters */
static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_TOP;
static uint32_t anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
/* application state */
static bool run_display = true;
static int cur_x = -1, cur_y = -1;
/* event handler prototypes */
static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface,
wl_fixed_t surface_x, wl_fixed_t surface_y);
static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface);
static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
uint32_t time, wl_fixed_t surface_x,
wl_fixed_t surface_y);
static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, uint32_t time, uint32_t button,
uint32_t state);
static void wl_touch_down(void *data, struct wl_touch *wl_touch,
uint32_t serial, uint32_t time,
struct wl_surface *surface, int32_t id, wl_fixed_t x,
wl_fixed_t y);
static void wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial,
uint32_t time, int32_t id);
static void wl_touch_motion(void *data, struct wl_touch *wl_touch,
uint32_t time, int32_t id, wl_fixed_t x,
wl_fixed_t y);
static void wl_touch_frame(void *data, struct wl_touch *wl_touch);
static void wl_touch_cancel(void *data, struct wl_touch *wl_touch);
static void wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id,
wl_fixed_t major, wl_fixed_t minor);
static void wl_touch_orientation(void *data, struct wl_touch *wl_touch,
int32_t id, wl_fixed_t orientation);
static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
enum wl_seat_capability caps);
static void seat_handle_name(void *data, struct wl_seat *wl_seat,
const char *name);
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface,
uint32_t version);
static void handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name);
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t w, uint32_t h);
static void layer_surface_closed(void *data,
struct zwlr_layer_surface_v1 *surface);
/* event handlers */
static const struct wl_pointer_listener pointer_listener = {
.enter = wl_pointer_enter,
.leave = wl_pointer_leave,
.motion = wl_pointer_motion,
.button = wl_pointer_button,
};
static const struct wl_touch_listener touch_listener = {
.down = wl_touch_down,
.up = wl_touch_up,
.motion = wl_touch_motion,
.frame = wl_touch_frame,
.cancel = wl_touch_cancel,
.shape = wl_touch_shape,
.orientation = wl_touch_orientation,
};
static const struct wl_seat_listener seat_listener = {
.capabilities = seat_handle_capabilities,
.name = seat_handle_name,
};
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
#include "config.h"
void
wl_touch_down(void *data, struct wl_touch *wl_touch, uint32_t serial,
uint32_t time, struct wl_surface *surface, int32_t id,
wl_fixed_t x, wl_fixed_t y) {
struct key *next_key;
uint32_t touch_x, touch_y;
touch_x = wl_fixed_to_int(x);
touch_y = wl_fixed_to_int(y);
kbd_unpress_key(&keyboard, time);
next_key = kbd_get_key(&keyboard, touch_x, touch_y);
if (next_key) {
kbd_press_key(&keyboard, next_key, time);
}
}
void
wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial,
uint32_t time, int32_t id) {
kbd_unpress_key(&keyboard, time);
}
void
wl_touch_motion(void *data, struct wl_touch *wl_touch, uint32_t time,
int32_t id, wl_fixed_t x, wl_fixed_t y) {
kbd_unpress_key(&keyboard, time);
}
void
wl_touch_frame(void *data, struct wl_touch *wl_touch) {}
void
wl_touch_cancel(void *data, struct wl_touch *wl_touch) {}
void
wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id,
wl_fixed_t major, wl_fixed_t minor) {}
void
wl_touch_orientation(void *data, struct wl_touch *wl_touch, int32_t id,
wl_fixed_t orientation) {}
void
wl_pointer_enter(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
struct wl_surface *surface, wl_fixed_t surface_x,
wl_fixed_t surface_y) {}
void
wl_pointer_leave(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
struct wl_surface *surface) {
cur_x = cur_y = -1;
}
void
wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, uint32_t time,
wl_fixed_t surface_x, wl_fixed_t surface_y) {
cur_x = wl_fixed_to_int(surface_x);
cur_y = wl_fixed_to_int(surface_y);
kbd_unpress_key(&keyboard, time);
}
void
wl_pointer_button(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state) {
struct key *next_key;
bool press = state == WL_POINTER_BUTTON_STATE_PRESSED;
kbd_unpress_key(&keyboard, time);
if (press && cur_x >= 0 && cur_y >= 0) {
next_key = kbd_get_key(&keyboard, cur_x, cur_y);
if (next_key) {
kbd_press_key(&keyboard, next_key, time);
}
}
}
void
seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
enum wl_seat_capability caps) {
if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
pointer = wl_seat_get_pointer(wl_seat);
wl_pointer_add_listener(pointer, &pointer_listener, NULL);
}
if ((caps & WL_SEAT_CAPABILITY_TOUCH)) {
touch = wl_seat_get_touch(wl_seat);
wl_touch_add_listener(touch, &touch_listener, NULL);
}
}
void
seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {}
void
handle_global(void *data, struct wl_registry *registry, uint32_t name,
const char *interface, uint32_t version) {
if (strcmp(interface, wl_compositor_interface.name) == 0) {
compositor = wl_registry_bind(registry, name, &wl_compositor_interface, 1);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
} else if (strcmp(interface, "wl_output") == 0) {
if (output != UINT32_MAX) {
if (!wl_output) {
wl_output = wl_registry_bind(registry, name, &wl_output_interface, 1);
} else {
output--;
}
}
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
seat = wl_registry_bind(registry, name, &wl_seat_interface, 1);
wl_seat_add_listener(seat, &seat_listener, NULL);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
layer_shell =
wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, 1);
} else if (strcmp(interface,
zwp_virtual_keyboard_manager_v1_interface.name) == 0) {
vkbd_mgr = wl_registry_bind(registry, name,
&zwp_virtual_keyboard_manager_v1_interface, 1);
}
}
void
handle_global_remove(void *data, struct wl_registry *registry, uint32_t name) {}
void
layer_surface_configure(void *data, struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t w, uint32_t h) {
kbd_resize(&keyboard, w + KBD_PIXEL_OVERSCAN_WIDTH, h);
zwlr_layer_surface_v1_ack_configure(surface, serial);
}
void
layer_surface_closed(void *data, struct zwlr_layer_surface_v1 *surface) {
zwlr_layer_surface_v1_destroy(surface);
wl_surface_destroy(draw_surf.surf);
run_display = false;
}
int
main(int argc, char **argv) {
uint8_t i;
int keymap_fd = os_create_anonymous_file(keymap_size);
/* connect to compositor */
display = wl_display_connect(NULL);
if (display == NULL) {
die("Failed to create display\n");
}
/* acquire state */
struct wl_registry *registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, NULL);
wl_display_roundtrip(display);
if (compositor == NULL) {
die("wl_compositor not available\n");
}
if (shm == NULL) {
die("wl_shm not available\n");
}
if (layer_shell == NULL) {
die("layer_shell not available\n");
}
if (vkbd_mgr == NULL) {
die("virtual_keyboard_manager not available\n");
}
/* create vkbd */
keyboard.vkbd =
zwp_virtual_keyboard_manager_v1_create_virtual_keyboard(vkbd_mgr, seat);
/* upload keymap */
if (keymap_fd < 0) {
die("could not create keymap fd\n");
}
void *ptr =
mmap(NULL, keymap_size, PROT_READ | PROT_WRITE, MAP_SHARED, keymap_fd, 0);
if (ptr == (void *)-1) {
die("could not map keymap data\n");
}
strcpy(ptr, keymap_str);
zwp_virtual_keyboard_v1_keymap(
keyboard.vkbd, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, keymap_fd, keymap_size);
/* init layouts */
for (i = 0; i < NumLayouts; i++) {
if (layouts[i].keys) {
kbd_init_layout(&layouts[i]);
}
}
/* assign kbd state */
keyboard.surf = &draw_surf;
/* create surface */
wl_surface = wl_compositor_create_surface(compositor);
drw_init(&draw_ctx, fc_font_pattern, display, shm);
drwsurf_init(&draw_ctx, &draw_surf, wl_surface);
layer_surface = zwlr_layer_shell_v1_get_layer_surface(
layer_shell, draw_surf.surf, wl_output, layer, namespace);
zwlr_layer_surface_v1_set_size(layer_surface, 0, KBD_PIXEL_HEIGHT);
zwlr_layer_surface_v1_set_anchor(layer_surface, anchor);
zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, KBD_PIXEL_HEIGHT);
zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface, false);
zwlr_layer_surface_v1_add_listener(layer_surface, &layer_surface_listener,
NULL);
wl_surface_commit(draw_surf.surf);
/* flush requests and start drawing */
wl_display_roundtrip(display);
drwsurf_flip(&draw_surf);
while (wl_display_dispatch(display) != -1 && run_display) {
}
return 0;
}