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Allow control mode clients to set a hard limit on the window width and

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height, GitHub issue 2594.
This commit is contained in:
nicm
2021-08-27 17:15:57 +00:00
parent 24636be42b
commit fd756a150b
7 changed files with 174 additions and 44 deletions
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72
cmd-refresh-client.c
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@ -77,6 +77,58 @@ out:
free(copy);
}
static enum cmd_retval
cmd_refresh_client_control_client_size(struct cmd *self, struct cmdq_item *item)
{
struct args *args = cmd_get_args(self);
struct client *tc = cmdq_get_target_client(item);
const char *size = args_get(args, 'C');
u_int w, x, y;
struct client_window *cw;
if (sscanf(size, "@%u:%ux%u", &w, &x, &y) == 3) {
if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
cmdq_error(item, "size too small or too big");
return (CMD_RETURN_ERROR);
}
log_debug("%s: client %s window @%u: size %ux%u", __func__,
tc->name, w, x, y);
cw = server_client_add_client_window(tc, w);
cw->sx = x;
cw->sy = y;
tc->flags |= CLIENT_WINDOWSIZECHANGED;
recalculate_sizes_now(1);
return (CMD_RETURN_NORMAL);
}
if (sscanf(size, "@%u:", &w) == 1) {
cw = server_client_get_client_window(tc, w);
if (cw != NULL) {
log_debug("%s: client %s window @%u: no size", __func__,
tc->name, w);
cw->sx = 0;
cw->sy = 0;
recalculate_sizes_now(1);
}
return (CMD_RETURN_NORMAL);
}
if (sscanf(size, "%u,%u", &x, &y) != 2 &&
sscanf(size, "%ux%u", &x, &y) != 2) {
cmdq_error(item, "bad size argument");
return (CMD_RETURN_ERROR);
}
if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
cmdq_error(item, "size too small or too big");
return (CMD_RETURN_ERROR);
}
tty_set_size(&tc->tty, x, y, 0, 0);
tc->flags |= CLIENT_SIZECHANGED;
recalculate_sizes_now(1);
return (CMD_RETURN_NORMAL);
}
static void
cmd_refresh_client_update_offset(struct client *tc, const char *value)
{
@ -117,8 +169,8 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
struct client *tc = cmdq_get_target_client(item);
struct tty *tty = &tc->tty;
struct window *w;
const char *size, *errstr;
u_int x, y, adjust;
const char *errstr;
u_int adjust;
struct args_value *av;
if (args_has(args, 'c') ||
@ -205,21 +257,7 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
if (args_has(args, 'C')) {
if (~tc->flags & CLIENT_CONTROL)
goto not_control_client;
size = args_get(args, 'C');
if (sscanf(size, "%u,%u", &x, &y) != 2 &&
sscanf(size, "%ux%u", &x, &y) != 2) {
cmdq_error(item, "bad size argument");
return (CMD_RETURN_ERROR);
}
if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
cmdq_error(item, "size too small or too big");
return (CMD_RETURN_ERROR);
}
tty_set_size(&tc->tty, x, y, 0, 0);
tc->flags |= CLIENT_SIZECHANGED;
recalculate_sizes_now(1);
return (CMD_RETURN_NORMAL);
return (cmd_refresh_client_control_client_size(self, item));
}
if (args_has(args, 'S')) {