Guard against re-entrant editor launches, abort editor on Ctrl-Z,
and centralize suspend-aware redraws through prof_doupdate() to prevent
terminal corruption when SIGTSTP is received while editor is active.
Removes SIGUSR1 editor escape in favor of standard pkill <editor> recovery.
The synchronous `get_message_from_editor` blocked the main loop (`prof_run`) while launching an external editor like `vim`, halting network I/O in `session_process_events` and preventing incoming message reception.
Introduced `get_message_from_editor_async` for `cmd_editor` to run the editor asynchronously. It forks and execs the editor in a thread (`editor_thread`), suspending NCurses to free the terminal. The main loop skips `inp_readline` and `ui_update` via a new `background_mode` flag while the editor runs, allowing `session_process_events` to keep the connection alive.
On editor completion, `editor_process` (called per loop iteration) resumes NCurses with `ui_resize`, inserts the result into the readline buffer and clears `background_mode`.
Retained synchronous `get_message_from_editor` for ~20 existing code paths (e.g., `vcard_nickname`) to avoid breaking them.
Tested with `vim` and `nano`: confirms no rendering conflicts, messages received during editing, and seamless resume. Edge cases like editor crashes handled via error logging and seamless resume.
Use a singleton `Jid` inside the connection instead of always re-creating
a `Jid` from the same string.
Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
`data_dir` would have been leaked if directory creation failed.
`editor_argv` was leaked at some point, no idea why.
```
==1244734== 118 (32 direct, 86 indirect) bytes in 1 blocks are definitely lost in loss record 6,299 of 7,824
==1244734== at 0x4846CC3: realloc (vg_replace_malloc.c:1451)
==1244734== by 0x5E85AD0: g_realloc (in /usr/lib/libglib-2.0.so.0.7600.1)
==1244734== by 0x5E4A004: ??? (in /usr/lib/libglib-2.0.so.0.7600.1)
==1244734== by 0x5E4A7B1: g_ptr_array_add (in /usr/lib/libglib-2.0.so.0.7600.1)
==1244734== by 0x5EA4235: g_strsplit (in /usr/lib/libglib-2.0.so.0.7600.1)
==1244734== by 0x1F143C: get_message_from_editor (editor.c:92)
==1244734== by 0x193F6B: _inp_rl_send_to_editor (inputwin.c:950)
==1244734== by 0x614642F: _rl_dispatch_subseq (readline.c:916)
==1244734== by 0x6146C85: _rl_dispatch_callback (readline.c:823)
==1244734== by 0x616739F: rl_callback_read_char (callback.c:241)
==1244734== by 0x1923DB: inp_readline (inputwin.c:188)
==1244734== by 0x149860: prof_run (profanity.c:117)
==1244734== by 0x2283E8: main (main.c:186)
```
Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
* Make editor executable into a string to be able to support
(multiple) flags.
* Change /help executable to suit this new feature
Signed-off-by: Daniel Santos <dacs.git@brilhante.top>
* use GLib functions to write&read compose file
* trim trailing new-line characters from compose file
Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
In case we're not connected yet and press Alt+c a segfault occurred
since `conn.xmpp_conn` is dereferenced while it's still `NULL`.
Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
