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#include <locale.h>
#include <langinfo.h>
#include <stdio.h>
#include <poll.h>
#include <unistd.h>
#include "array.h"
#include "state.h"
#include "wayland.h"
#include "graphics.h"
#include "input_field.h"
#include "font.h"
#include "array.h"
#include "args.h"
void poll_events(client_state* state);
void read_stdin(client_state* state) {
ssize_t len = 0;
size_t a;
char* line = NULL;
while((len = getline(&line, &a, stdin)) != -1) {
if (line[len - 1] == '\n') {
line[len - 1] = '\0';
len -= 1;
}
if (len != 0) {
array_add(state->items, (item_t){0});
array_last(state->items).text = line;
}
line = NULL;
}
free(line);
}
int main(int argc, char* argv[]) {
client_state state = {0};
state.running = true;
state.input_buffer = array_new(char, 0);
state.filtered_items = array_new(item_display_t, 0);
// check locale
setlocale(LC_ALL, "");
const char *encoding = nl_langinfo(CODESET);
if (strcmp(encoding, "UTF-8") != 0) {
fprintf(stderr, "Cannot continue because encoding (%s), is not UTF-8.", encoding);
return EXIT_FAILURE;
}
// read input
parse_args(&state, argc, argv);
read_stdin(&state);
// find font
char* font = get_font("Monospace");
if (!freetype_init(&state, font)) {
fprintf(stderr, "Failed to Initalize FreeType\n");
}
free(font);
// create font atlas
atlas_init(&state);
atlas_calc_item_widths(&state);
// start wayland
state.display = wl_display_connect(NULL);
if (!state.display) {
fprintf(stderr, "Failed to Connect to wayland display\n");
return EXIT_FAILURE;
}
// bind globals and roundtrip
setup_registry_and_globals(&state);
wl_display_roundtrip(state.display);
// set up other objects and roundtrip
setup_seat(&state);
create_surface(&state);
wl_display_roundtrip(state.display);
// set up graphics
if (!init_gl(&state)) {
fprintf(stderr, "Failed to Initalize EGL/OpenGL\n");
return EXIT_FAILURE;
}
// create font altas textures
atlas_create_texture(&state);
// create text buffers
init_text_buffer(&state, &state.input_buffer_grafix, "", 0);
array_for_all(item_t, item, state.items) {
init_text_buffer(&state, &item->text_buffer, item->text, strlen(item->text));
}
filter_items(&state);
// event loop
while (state.running) {
poll_events(&state);
render_frame(&state);
}
// cleanup (of course)
if (state.items) {
array_free(state.items);
}
return state.exit_code;
}
void poll_events(client_state* state) {
enum { DISPLAY_FD, KEYREPEAT_FD };
struct pollfd fds[] = {
[DISPLAY_FD] = { wl_display_get_fd(state->display), POLLIN },
[KEYREPEAT_FD] = { state->key_repeat_timer_fd, POLLIN },
};
bool event = false;
while (!event) {
while (wl_display_prepare_read(state->display) != 0) {
if (wl_display_dispatch_pending(state->display) > 0) {
return;
}
}
if (poll(fds, sizeof(fds) / sizeof(fds[0]), -1) == -1) {
wl_display_cancel_read(state->display);
return;
}
if (fds[DISPLAY_FD].revents & POLLIN) {
wl_display_read_events(state->display);
if (wl_display_dispatch_pending(state->display) > 0)
event = true;
}
else {
wl_display_cancel_read(state->display);
}
if (fds[KEYREPEAT_FD].revents & POLLIN) {
uint64_t repeats;
if (read(state->key_repeat_timer_fd, &repeats, sizeof(repeats)) == 8) {
for (uint64_t i = 0; i < repeats; i++) {
type_key(state, state->repeat_key);
}
event = true;
}
}
}
}
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