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notify: try to read the daemon assigned notification ID from stdout

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And document the things we recognize in the notification helper's
stdout.
This commit is contained in:
Daniel Eklöf 2024-07-24 16:02:19 +02:00
parent e271027c0c
commit f56da385fe
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GPG key ID: 5BBD4992C116573F
3 changed files with 56 additions and 3 deletions
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43
notify.c
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@ -34,6 +34,27 @@ notify_free(struct terminal *term, struct notification *notif)
free(notif->stdout_data);
}
static bool
to_integer(const char *line, size_t len, uint32_t *res)
{
bool is_id = true;
uint32_t maybe_id = 0;
for (size_t i = 0; i < len; i++) {
char digit = line[i];
if (digit < '0' || digit > '9') {
is_id = false;
break;
}
maybe_id *= 10;
maybe_id += digit - '0';
}
*res = maybe_id;
return is_id;
}
static void
consume_stdout(struct notification *notif, bool eof)
{
@ -54,10 +75,26 @@ consume_stdout(struct notification *notif, bool eof)
} else if (!eof)
break;
if (strcmp(line, "default") == 0)
notif->activated = true;
uint32_t maybe_id = 0;
/* Check for 'xdgtoken=xyz' */
/* Check for daemon assigned ID, either '123', or 'id=123' */
if (to_integer(line, len, &maybe_id) ||
(len > 3 && memcmp(line, "id=", 3) == 0 &&
to_integer(&line[3], len - 3, &maybe_id)))
{
notif->external_id = maybe_id;
LOG_DBG("external ID: %u", notif->external_id);
}
/* Check for triggered action, either 'default' or 'action=default' */
else if ((len == 7 && memcmp(line, "default", 7) == 0) ||
(len == 7 + 7 && memcmp(line, "action=default", 7 + 7) == 0))
{
notif->activated = true;
LOG_DBG("notification's default action was triggered");
}
/* Check for XDG activation token, 'xdgtoken=xyz' */
else if (len > 9 && memcmp(line, "xdgtoken=", 9) == 0) {
notif->xdg_token = xstrndup(&line[9], len - 9);
LOG_DBG("XDG token: \"%s\"", notif->xdg_token);