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-rw-r--r--src/keyboard.c159
1 files changed, 0 insertions, 159 deletions
diff --git a/src/keyboard.c b/src/keyboard.c
deleted file mode 100644
index 14bb9dd..0000000
--- a/src/keyboard.c
+++ /dev/null
@@ -1,159 +0,0 @@
-#define _DEFAULT_SOURCE
-#include "keyboard.h"
-#include "reactor.h"
-#include "stdio.h"
-#include "utf8.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <termios.h>
-#include <unistd.h>
-
-struct keyboard keyboard_create(struct reactor *reactor) {
- struct termios term;
- tcgetattr(0, &term);
-
- // set input to non-blocking
- term.c_cc[VMIN] = 0;
- term.c_cc[VTIME] = 0;
- tcsetattr(0, TCSADRAIN, &term);
- return keyboard_create_fd(reactor, STDIN_FILENO);
-}
-
-struct keyboard keyboard_create_fd(struct reactor *reactor, int fd) {
- return (struct keyboard){
- .fd = fd,
- .reactor_event_id = reactor_register_interest(reactor, fd, ReadInterest),
- };
-}
-
-void parse_keys(uint8_t *bytes, uint32_t nbytes, struct key *out_keys,
- uint32_t *out_nkeys) {
- // TODO: can be optimized if "bytes" contains no special chars
- uint32_t nkps = 0;
- for (uint32_t bytei = 0; bytei < nbytes; ++bytei) {
- uint8_t b = bytes[bytei];
- bool has_more = bytei + 1 < nbytes;
- uint8_t next = has_more ? bytes[bytei + 1] : 0;
-
- struct key *kp = &out_keys[nkps];
- if (b == 0x1b) { // meta
- kp->start = bytei;
- kp->mod = Meta;
- } else if (has_more && isalnum(next) && kp->mod & Meta &&
- (b == '[' ||
- b == '0')) { // special char (function keys, pgdn, etc)
- kp->mod = Spec;
- } else if (b == 0x7f) { // ?
- kp->mod |= Ctrl;
- kp->key = '?';
- kp->start = bytei;
- kp->end = bytei + 1;
- ++nkps;
- } else if (iscntrl(b)) { // ctrl char
- kp->mod |= Ctrl;
- kp->key = b | 0x40;
- kp->start = bytei;
- kp->end = bytei + 1;
- ++nkps;
- } else {
- if (kp->mod & Spec && b == '~') {
- // skip tilde in special chars
- kp->end = bytei + 1;
- ++nkps;
- } else if (kp->mod & Meta || kp->mod & Spec) {
- kp->key = b;
- kp->end = bytei + 1;
-
- if (kp->mod & Meta || (kp->mod & Spec && next != '~')) {
- ++nkps;
- }
- } else if (utf8_byte_is_unicode_continuation(b)) {
- // do nothing for these
- } else if (utf8_byte_is_unicode_start(b)) { // unicode char
- kp->mod = None;
- kp->key = 0;
- kp->start = bytei;
- kp->end = bytei + utf8_nbytes(bytes + bytei, nbytes - bytei, 1);
- ++nkps;
- } else { // normal ASCII char
- kp->mod = None;
- kp->key = b;
- kp->start = bytei;
- kp->end = bytei + 1;
- ++nkps;
- }
- }
- }
-
- *out_nkeys = nkps;
-}
-
-struct keyboard_update keyboard_update(struct keyboard *kbd,
- struct reactor *reactor,
- void *(*frame_alloc)(size_t)) {
-
- struct keyboard_update upd = (struct keyboard_update){
- .keys = NULL,
- .nkeys = 0,
- .nbytes = 0,
- .raw = NULL,
- };
-
- // check if there is anything to do
- if (!reactor_poll_event(reactor, kbd->reactor_event_id)) {
- return upd;
- }
-
- // read all input in chunks of `bufsize` bytes
- const uint32_t bufsize = 128;
- uint8_t *buf = malloc(bufsize), *writepos = buf;
- int nbytes = 0, nread = 0;
- while ((nread = read(kbd->fd, writepos, bufsize)) == bufsize) {
- nbytes += bufsize;
- buf = realloc(buf, nbytes + bufsize);
- writepos = buf + nbytes;
- }
-
- nbytes += nread;
-
- if (nbytes > 0) {
- upd.nbytes = nbytes;
- upd.raw = frame_alloc(nbytes);
- memcpy(upd.raw, buf, nbytes);
- upd.keys = frame_alloc(sizeof(struct key) * nbytes);
- memset(upd.keys, 0, sizeof(struct key) * nbytes);
-
- parse_keys(upd.raw, upd.nbytes, upd.keys, &upd.nkeys);
- }
-
- free(buf);
- return upd;
-}
-
-bool key_equal_char(struct key *key, uint8_t mod, uint8_t c) {
- return key->key == c && key->mod == mod;
-}
-
-bool key_equal(struct key *key1, struct key *key2) {
- return key_equal_char(key1, key2->mod, key2->key);
-}
-
-void key_name(struct key *key, char *buf, size_t capacity) {
- const char *mod = "";
- switch (key->mod) {
- case Ctrl:
- mod = "c-";
- break;
- case Meta:
- mod = "m-";
- break;
- case Spec:
- mod = "special-";
- break;
- }
-
- snprintf(buf, capacity, "%s%c", mod, tolower(key->key));
-}