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Add support for OSC color sequences

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This commit is contained in:
Raheman Vaiya
2021-12-26 18:57:04 +01:00
committed by Hiltjo Posthuma
parent 2f6e597ed8
commit 8e31030390
4 changed files with 100 additions and 4 deletions
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80
st.c
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@ -1842,6 +1842,42 @@ csireset(void)
memset(&csiescseq, 0, sizeof(csiescseq));
}
void
osc4_color_response(int num)
{
int n;
char buf[32];
unsigned char r, g, b;
if (xgetcolor(num, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch osc4 color %d\n", num);
return;
}
n = snprintf(buf, sizeof buf, "\033]4;%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
num, r, r, g, g, b, b);
ttywrite(buf, n, 1);
}
void
osc_color_response(int index, int num)
{
int n;
char buf[32];
unsigned char r, g, b;
if (xgetcolor(index, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch osc color %d\n", index);
return;
}
n = snprintf(buf, sizeof buf, "\033]%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
num, r, r, g, g, b, b);
ttywrite(buf, n, 1);
}
void
strhandle(void)
{
@ -1880,6 +1916,45 @@ strhandle(void)
}
}
return;
case 10:
if (narg < 2)
break;
p = strescseq.args[1];
if (!strcmp(p, "?"))
osc_color_response(defaultfg, 10);
else if (xsetcolorname(defaultfg, p))
fprintf(stderr, "erresc: invalid foreground color: %s\n", p);
else
redraw();
break;
case 11:
if (narg < 2)
break;
p = strescseq.args[1];
if (!strcmp(p, "?"))
osc_color_response(defaultbg, 11);
else if (xsetcolorname(defaultbg, p))
fprintf(stderr, "erresc: invalid background color: %s\n", p);
else
redraw();
break;
case 12:
if (narg < 2)
break;
p = strescseq.args[1];
if (!strcmp(p, "?"))
osc_color_response(defaultcs, 12);
else if (xsetcolorname(defaultcs, p))
fprintf(stderr, "erresc: invalid cursor color: %s\n", p);
else
redraw();
break;
case 4: /* color set */
if (narg < 3)
break;
@ -1887,7 +1962,10 @@ strhandle(void)
/* FALLTHROUGH */
case 104: /* color reset, here p = NULL */
j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
if (xsetcolorname(j, p)) {
if (!strcmp(p, "?"))
osc4_color_response(j);
else if (xsetcolorname(j, p)) {
if (par == 104 && narg <= 1)
return; /* color reset without parameter */
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",