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114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
#include "osc.h"
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#include <string.h>
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#include <ctype.h>
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#define LOG_MODULE "osc"
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#define LOG_ENABLE_DBG 0
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#include "log.h"
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#include "render.h"
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#include "terminal.h"
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#include "vt.h"
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static void
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osc_query(struct terminal *term, unsigned param)
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{
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switch (param) {
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case 10:
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case 11: {
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uint32_t color = param == 10 ? term->foreground : term->background;
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uint8_t r = (color >> 16) & 0xff;
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uint8_t g = (color >> 8) & 0xff;
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uint8_t b = (color >> 0) & 0xff;
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/*
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* Reply in XParseColor format
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* E.g. for color 0xdcdccc we reply "\e]10;rgb:dc/dc/cc\e\\"
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*/
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char reply[32];
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snprintf(
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reply, sizeof(reply), "\033]%u;rgb:%02x/%02x/%02x\033\\",
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param, r, g, b);
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vt_to_slave(term, reply, strlen(reply));
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break;
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}
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default:
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LOG_ERR("unimplemented: OSC query: %.*s",
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(int)term->vt.osc.idx, term->vt.osc.data);
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abort();
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break;
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}
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}
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void
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osc_dispatch(struct terminal *term)
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{
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unsigned param = 0;
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int data_ofs = 0;
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for (size_t i = 0; i < term->vt.osc.idx; i++) {
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char c = term->vt.osc.data[i];
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if (c == ';') {
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data_ofs = i + 1;
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break;
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}
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if (!isdigit(c)) {
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LOG_ERR("OSC: invalid parameter: %.*s",
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(int)term->vt.osc.idx, term->vt.osc.data);
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abort();
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}
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param *= 10;
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param += c - '0';
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}
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LOG_DBG("OCS: %.*s (param = %d)",
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(int)term->vt.osc.idx, term->vt.osc.data, param);
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const char *string = (const char *)&term->vt.osc.data[data_ofs];
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if (strlen(string) == 1 && string[0] == '?') {
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osc_query(term, param);
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return;
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}
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switch (param) {
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case 0: render_set_title(term, string); break; /* icon + title */
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case 1: break; /* icon */
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case 2: render_set_title(term, string); break; /* title */
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case 104: /* Reset Color Number 'c' */
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case 105: /* Reset Special Color Number 'c' */
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case 112: /* Reset text cursor color */
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break;
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default:
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LOG_ERR("unimplemented: OSC: %.*s",
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(int)term->vt.osc.idx, term->vt.osc.data);
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abort();
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break;
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}
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}
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bool
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osc_ensure_size(struct terminal *term, size_t required_size)
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{
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if (required_size <= term->vt.osc.size)
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return true;
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size_t new_size = (required_size + 127) / 128 * 128;
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assert(new_size > 0);
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uint8_t *new_data = realloc(term->vt.osc.data, new_size);
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if (new_data == NULL) {
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LOG_ERRNO("failed to increase size of OSC buffer");
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return false;
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}
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term->vt.osc.data = new_data;
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term->vt.osc.size = new_size;
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return true;
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}
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