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consoledev: support for terminal input sequences

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Matheus
2022-10-14 16:22:41 -03:00
parent c1c5d779e5
commit fac3b27fe1
1 changed files with 112 additions and 44 deletions
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src/video/consoledev.c
+112 -44
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@@ -32,7 +32,24 @@ void console_write(char* str, size_t count){
}
#define THREAD_BUFF_MAX 2048
#define BACKSPACE_STR "\b \b"
// taken from https://en.wikipedia.org/wiki/ANSI_escape_code#Terminal_input_sequences
#define HOME_STR "\e[1~"
#define INSERT_STR "\e[2~"
#define DELETE_STR "\e[3~"
#define END_STR "\e[4~"
#define PGUP_STR "\e[5~"
#define PGDN_STR "\e[6~"
#define UP_STR "\e[A"
#define DOWN_STR "\e[B"
#define RIGHT_STR "\e[C"
#define LEFT_STR "\e[D"
__attribute__((noreturn)) static void console_thread(){
char buff[THREAD_BUFF_MAX];
@@ -43,61 +60,112 @@ __attribute__((noreturn)) static void console_thread(){
keyboard_getandwait(0, &packet);
if(packet.ascii && (KBPACKET_FLAGS_RELEASED & packet.flags) == 0){
if(tty.c_lflag & ICANON){
bool flush = false;
switch(packet.ascii){
case '\b':
if(buffpos){
--buffpos;
buff[buffpos] = '\0';
if(tty.c_lflag & ECHO)
console_write(BACKSPACE_STR, strlen(BACKSPACE_STR));
}
continue;
case '\n':
flush = true;
break;
}
if(tty.c_lflag & ECHO)
console_write(&packet.ascii, 1);
buff[buffpos++] = packet.ascii;
if(KBPACKET_FLAGS_RELEASED & packet.flags)
continue;
if(buffpos == THREAD_BUFF_MAX)
char* strbufptr;
size_t strbuflen;
if(packet.ascii){
strbufptr = &packet.ascii;
strbuflen = 1;
}
else{
switch(packet.keycode){
case KEYCODE_HOME:
strbufptr = HOME_STR;
break;
case KEYCODE_INSERT:
strbufptr = INSERT_STR;
break;
case KEYCODE_DELETE:
strbufptr = DELETE_STR;
break;
case KEYCODE_END:
strbufptr = END_STR;
break;
case KEYCODE_PAGEUP:
strbufptr = PGUP_STR;
break;
case KEYCODE_PAGEDOWN:
strbufptr = PGDN_STR;
break;
case KEYCODE_UP:
strbufptr = UP_STR;
break;
case KEYCODE_DOWN:
strbufptr = DOWN_STR;
break;
case KEYCODE_RIGHT:
strbufptr = RIGHT_STR;
break;
case KEYCODE_LEFT:
strbufptr = LEFT_STR;
break;
default:
continue;
}
strbuflen = strlen(strbufptr);
}
if(tty.c_lflag & ICANON){
bool flush = false;
switch(packet.ascii){
case '\b':
if(buffpos){
--buffpos;
buff[buffpos] = '\0';
if(tty.c_lflag & ECHO)
console_write(BACKSPACE_STR, strlen(BACKSPACE_STR));
}
continue;
case '\n':
flush = true;
if(flush){
arch_interrupt_disable();
ringbuffer_write(&input, buff, buffpos);
arch_interrupt_enable();
buffpos = 0;
event_signal(&inputevent, true);
break;
}
if(packet.ascii && tty.c_lflag & ECHO)
console_write(strbufptr, strbuflen);
for(size_t i = 0; i < strbuflen; ++i){
buff[buffpos++] = strbufptr[i];
if(buffpos == THREAD_BUFF_MAX){
flush = true;
break;
}
}
else{ // not canon
if(tty.c_lflag & ECHO)
console_write(&packet.ascii, 1);
if(flush){
arch_interrupt_disable();
ringbuffer_write(&input, &packet.ascii, 1);
arch_interrupt_enable();
ringbuffer_write(&input, buff, buffpos);
arch_interrupt_enable();
buffpos = 0;
event_signal(&inputevent, true);
}
}
else{ // not canon
if(tty.c_lflag & ECHO)
console_write(strbufptr, strbuflen);
arch_interrupt_disable();
ringbuffer_write(&input, strbufptr, strbuflen);
arch_interrupt_enable();
event_signal(&inputevent, true);
}
}
}