ESPTerm - ESP8266 terminal emulator. Branches: [master] patches, [work] next release
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espterm-firmware/user/apars_osc.c

65 lines
1.4 KiB

//
// Created by MightyPork on 2017/08/20.
//
// Handle OSC commands (Operating System Command)
// ESC ] Ps ; Pt ST
//
// Those are used to pass various text variables to the terminal:
//
// Ps = 0 or 2 ... set screen title to Pt
// Ps = 81-85 ... set button label to Pt
//
#include "apars_osc.h"
#include "apars_logging.h"
#include "screen.h"
#include "ansi_parser.h"
/**
* Helper function to set terminal button label
* @param num - button number 1-5
* @param str - button text
*/
static void ICACHE_FLASH_ATTR
set_button_text(int num, const char *str)
{
strncpy(termconf_scratch.btn[num-1], str, TERM_BTN_LEN);
screen_notifyChange(CHANGE_LABELS);
}
/**
* Helper function to parse incoming OSC (Operating System Control)
* @param buffer - the OSC body (after OSC and before ST)
*/
void ICACHE_FLASH_ATTR
apars_handle_osc(const char *buffer)
{
const char *orig_buff = buffer;
int n = 0;
char c = 0;
while ((c = *buffer++) != 0) {
if (c >= '0' && c <= '9') {
n = (n * 10 + (c - '0'));
} else {
break;
}
}
if (c == ';') {
// Do something with the data string and number
// (based on xterm manpage)
if (n == 0 || n == 2) {
screen_set_title(buffer);
}
else if (n >= 81 && n <= 85) { // numbers chosen to not collide with any xterm supported codes
set_button_text(n - 80, buffer);
}
else {
ansi_noimpl("OSC %d ; %s ST", n, buffer);
}
}
else {
ansi_warn("BAD OSC: %s", orig_buff);
apars_show_context();
}
}