degesch: make readline work better
By randomly poking at it until it stops being a little shit. Still no Meta keys.
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parent
869781c33a
commit
932548ef4b
65
degesch.c
65
degesch.c
@ -446,7 +446,7 @@ static void
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app_readline_hide (struct app_readline_state *state)
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app_readline_hide (struct app_readline_state *state)
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{
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{
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state->saved_point = rl_point;
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state->saved_point = rl_point;
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state->saved_point = rl_mark;
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state->saved_mark = rl_mark;
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state->saved_line = rl_copy_text (0, rl_end);
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state->saved_line = rl_copy_text (0, rl_end);
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rl_set_prompt ("");
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rl_set_prompt ("");
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rl_replace_line ("", 0);
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rl_replace_line ("", 0);
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@ -464,6 +464,16 @@ app_readline_restore (struct app_readline_state *state, const char *prompt)
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free (state->saved_line);
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free (state->saved_line);
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}
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}
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static void
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app_readline_erase_to_bol (const char *prompt)
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{
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rl_set_prompt ("");
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rl_replace_line ("", 0);
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rl_point = rl_mark = 0;
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rl_redisplay ();
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rl_set_prompt (prompt);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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typedef int (*terminal_printer_fn) (int);
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typedef int (*terminal_printer_fn) (int);
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@ -1045,10 +1055,10 @@ initiate_quit (struct app_context *ctx)
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{
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{
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// First get rid of readline
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// First get rid of readline
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if (ctx->readline_prompt_shown)
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if (ctx->readline_prompt_shown)
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rl_crlf ();
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{
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app_readline_erase_to_bol (ctx->readline_prompt);
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rl_callback_handler_remove ();
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ctx->readline_prompt_shown = false;
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ctx->readline_prompt_shown = false;
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}
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// Initiate a connection close
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// Initiate a connection close
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buffer_send_status (ctx, ctx->global_buffer, "shutting down");
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buffer_send_status (ctx, ctx->global_buffer, "shutting down");
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@ -1441,6 +1451,37 @@ on_readline_next_buffer (int count, int key)
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return 0;
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return 0;
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}
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}
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static int
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on_readline_return (int count, int key)
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{
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(void) count;
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(void) key;
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struct app_context *ctx = g_ctx;
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// Let readline pass the line to our input handler
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rl_done = 1;
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// Save readline state
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int saved_point = rl_point;
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int saved_mark = rl_mark;
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char *saved_line = rl_copy_text (0, rl_end);
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// Erase the entire line from screen
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rl_set_prompt ("");
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rl_replace_line ("", 0);
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rl_redisplay ();
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ctx->readline_prompt_shown = false;
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// Restore readline state
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rl_set_prompt (ctx->readline_prompt);
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rl_replace_line (saved_line, 0);
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rl_point = saved_point;
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rl_mark = saved_mark;
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free (saved_line);
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return 0;
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}
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static int
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static int
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init_readline (void)
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init_readline (void)
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{
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{
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@ -1464,6 +1505,8 @@ init_readline (void)
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rl_bind_keyseq ("\\M-p", rl_named_function ("previous-history"));
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rl_bind_keyseq ("\\M-p", rl_named_function ("previous-history"));
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rl_bind_keyseq ("\\M-n", rl_named_function ("next-history"));
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rl_bind_keyseq ("\\M-n", rl_named_function ("next-history"));
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rl_bind_key (RETURN, on_readline_return);
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return 0;
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return 0;
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}
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}
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@ -2233,9 +2276,6 @@ on_tty_readable (const struct pollfd *fd, struct app_context *ctx)
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static void
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static void
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on_readline_input (char *line)
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on_readline_input (char *line)
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{
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{
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// Otherwise the prompt is shown at all times
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g_ctx->readline_prompt_shown = false;
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if (line)
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if (line)
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{
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{
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if (*line)
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if (*line)
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@ -2245,11 +2285,15 @@ on_readline_input (char *line)
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free (line);
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free (line);
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}
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}
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else
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else
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// Anything better to do?
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{
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rl_crlf ();
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app_readline_erase_to_bol (g_ctx->readline_prompt);
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rl_ding ();
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}
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if (g_ctx->quitting)
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rl_callback_handler_remove ();
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else
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// initiate_quit() disables readline; we just wait then
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// initiate_quit() disables readline; we just wait then
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if (!g_ctx->quitting)
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g_ctx->readline_prompt_shown = true;
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g_ctx->readline_prompt_shown = true;
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}
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}
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@ -2584,7 +2628,6 @@ main (int argc, char *argv[])
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if (ctx.readline_prompt_shown)
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if (ctx.readline_prompt_shown)
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rl_callback_handler_remove ();
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rl_callback_handler_remove ();
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putchar ('\n');
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app_context_free (&ctx);
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app_context_free (&ctx);
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free_terminal ();
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free_terminal ();
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