degesch: clean up key binding initialization
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parent
cc505090d4
commit
0bdf76edc5
183
degesch.c
183
degesch.c
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@ -216,6 +216,34 @@ input_erase (struct input *self)
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rl_redisplay ();
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}
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static void
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input_bind (struct input *self, const char *seq, const char *function_name)
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{
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(void) self;
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rl_bind_keyseq (seq, rl_named_function (function_name));
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}
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static void
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input_bind_meta (struct input *self, char key, const char *function_name)
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{
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// This one seems to actually work
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char keyseq[] = { '\\', 'e', key, 0 };
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input_bind (self, keyseq, function_name);
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#if 0
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// While this one only fucks up UTF-8
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// Tested with urxvt and xterm, on Debian Jessie/Arch, default settings
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// \M-<key> behaves exactly the same
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rl_bind_key (META (key), rl_named_function (function_name));
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#endif
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}
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static void
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input_bind_control (struct input *self, char key, const char *function_name)
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{
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char keyseq[] = { '\\', 'C', '-', key, 0 };
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input_bind (self, keyseq, function_name);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static int app_readline_init (void);
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@ -437,6 +465,26 @@ input_on_terminal_resized (struct input *self)
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el_resize (self->editline);
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}
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static void
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input_bind (struct input *self, const char *seq, const char *function_name)
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{
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el_set (self->editline, EL_BIND, seq, function_name, NULL);
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}
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static void
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input_bind_meta (struct input *self, char key, const char *function_name)
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{
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char keyseq[] = { 'M', '-', key, 0 };
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input_bind (self, keyseq, function_name);
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}
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static void
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input_bind_control (struct input *self, char key, const char *function_name)
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{
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char keyseq[] = { '^', key, 0 };
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input_bind (self, keyseq, function_name);
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}
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static void
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input_redisplay (struct input *self)
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{
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@ -506,12 +554,8 @@ input_start (struct input *self, const char *program_name)
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el_set (self->editline, EL_UNBUFFERED, true);
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el_set (self->editline, EL_EDITOR, "emacs");
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// No, editline, it's not supposed to kill the entire line
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el_set (self->editline, EL_BIND, "^W", "ed-delete-prev-word", NULL);
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// Just what are you doing?
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el_set (self->editline, EL_BIND, "^U", "vi-kill-line-prev", NULL);
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app_editline_init (self);
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self->prompt_shown = 1;
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self->active = true;
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}
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@ -5391,6 +5435,26 @@ redraw_screen (struct app_context *ctx)
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return true;
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}
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static void
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bind_common_keys (struct app_context *ctx)
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{
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struct input *self = &ctx->input;
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input_bind_control (self, 'p', "previous-buffer");
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input_bind_control (self, 'n', "next-buffer");
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// Redefine M-0 through M-9 to switch buffers
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for (int i = 0; i <= 9; i++)
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input_bind_meta (self, '0' + i, "goto-buffer");
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if (key_f5)
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input_bind (self, key_f5, "previous-buffer");
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if (key_f6)
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input_bind (self, key_f6, "next-buffer");
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if (clear_screen)
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input_bind_control (self, 'l', "redraw-screen");
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}
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// --- GNU Readline user actions -----------------------------------------------
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#ifdef HAVE_READLINE
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@ -5491,20 +5555,6 @@ on_readline_input (char *line)
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ctx->input.prompt_shown = 1;
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}
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static void
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app_readline_bind_meta (char key, rl_command_func_t cb)
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{
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// This one seems to actually work
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char keyseq[] = { '\\', 'e', key, 0 };
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rl_bind_keyseq (keyseq, cb);
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#if 0
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// While this one only fucks up UTF-8
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// Tested with urxvt and xterm, on Debian Jessie/Arch, default settings
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// \M-<key> behaves exactly the same
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rl_bind_key (META (key), cb);
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#endif
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}
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static char **
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app_readline_completion (const char *text, int start, int end)
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{
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@ -5520,41 +5570,32 @@ app_readline_completion (const char *text, int start, int end)
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static int
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app_readline_init (void)
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{
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struct app_context *ctx = g_ctx;
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struct input *self = &ctx->input;
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// XXX: maybe use rl_make_bare_keymap() and start from there;
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// our dear user could potentionally rig things up in a way that might
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// result in some funny unspecified behaviour
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rl_add_defun ("previous-buffer", on_readline_previous_buffer, -1);
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rl_add_defun ("next-buffer", on_readline_next_buffer, -1);
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// Redefine M-0 through M-9 to switch buffers
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for (int i = 0; i <= 9; i++)
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app_readline_bind_meta ('0' + i, on_readline_goto_buffer);
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rl_bind_keyseq ("\\C-p", rl_named_function ("previous-buffer"));
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rl_bind_keyseq ("\\C-n", rl_named_function ("next-buffer"));
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app_readline_bind_meta ('p', rl_named_function ("previous-history"));
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app_readline_bind_meta ('n', rl_named_function ("next-history"));
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if (key_f5)
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rl_bind_keyseq (key_f5, rl_named_function ("previous-buffer"));
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if (key_f6)
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rl_bind_keyseq (key_f6, rl_named_function ("next-buffer"));
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if (clear_screen)
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{
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rl_add_defun ("goto-buffer", on_readline_goto_buffer, -1);
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rl_add_defun ("redraw-screen", on_readline_redraw_screen, -1);
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rl_bind_keyseq ("\\C-l", rl_named_function ("redraw-screen"));
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}
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rl_add_defun ("send-line", on_readline_return, -1);
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// We need to hide the prompt first
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rl_bind_key (RETURN, on_readline_return);
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bind_common_keys (ctx);
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// Move native history commands
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input_bind_meta (self, 'p', "previous-history");
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input_bind_meta (self, 'n', "next-history");
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// We need to hide the prompt and input first
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rl_bind_key (RETURN, rl_named_function ("send-line"));
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// Completion
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rl_variable_bind ("completion-ignore-case", "on");
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rl_bind_key (TAB, rl_named_function ("menu-complete"));
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if (key_btab)
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rl_bind_keyseq (key_btab, rl_named_function ("menu-complete-backward"));
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input_bind (self, key_btab, "menu-complete-backward");
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return 0;
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}
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@ -5707,47 +5748,37 @@ on_editline_return (EditLine *editline, int key)
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static void
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app_editline_init (struct input *self)
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{
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el_set (self->editline, EL_ADDFN, "goto-buffer",
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"Go to buffer", on_editline_goto_buffer);
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el_set (self->editline, EL_ADDFN, "previous-buffer",
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"Previous buffer", on_editline_previous_buffer);
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el_set (self->editline, EL_ADDFN, "next-buffer",
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"Next buffer", on_editline_next_buffer);
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// Redefine M-0 through M-9 to switch buffers
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for (size_t i = 0; i < 10; i++)
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static const struct { const char *name; const char *help;
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unsigned char (*func) (EditLine *, int); } x[] =
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{
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char keyseq[] = { 'M', '-', '0' + i, 0 };
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el_set (self->editline, EL_BIND, keyseq, "goto-buffer", NULL);
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}
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{ "goto-buffer", "Go to buffer", on_editline_goto_buffer },
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{ "previous-buffer", "Previous buffer", on_editline_previous_buffer },
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{ "next-buffer", "Next buffer", on_editline_next_buffer },
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{ "redraw-screen", "Redraw screen", on_editline_redraw_screen },
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{ "send-line", "Send line", on_editline_return },
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{ "complete", "Complete word", on_editline_complete },
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};
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for (size_t i = 0; i < N_ELEMENTS (x); i++)
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el_set (self->editline, EL_ADDFN, x[i].name, x[i].help, x[i].func);
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el_set (self->editline, EL_BIND, "M-p", "ed-prev-history", NULL);
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el_set (self->editline, EL_BIND, "M-n", "ed-next-history", NULL);
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el_set (self->editline, EL_BIND, "^P", "previous-buffer", NULL);
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el_set (self->editline, EL_BIND, "^N", "next-buffer", NULL);
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bind_common_keys (g_ctx);
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if (key_f5)
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el_set (self->editline, EL_BIND, key_f5, "previous-buffer", NULL);
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if (key_f6)
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el_set (self->editline, EL_BIND, key_f6, "next-buffer", NULL);
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// Move native history commands
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input_bind_meta (self, 'p', "ed-prev-history");
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input_bind_meta (self, 'n', "ed-next-history");
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if (clear_screen)
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{
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el_set (self->editline, EL_ADDFN, "redraw-screen",
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"Redraw screen", on_editline_redraw_screen);
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el_set (self->editline, EL_BIND, "^L", "redraw-screen", NULL);
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}
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// No, editline, it's not supposed to kill the entire line
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input_bind_control (self, 'w', "ed-delete-prev-word");
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// Just what are you doing?
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input_bind_control (self, 'u', "vi-kill-line-prev");
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// We need to hide the prompt and input first
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input_bind (self, "\n", "send-line");
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input_bind_control (self, 'i', "complete");
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// Source the user's defaults file
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el_source (self->editline, NULL);
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el_set (self->editline, EL_ADDFN, "send-line",
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"Send line", on_editline_return);
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el_set (self->editline, EL_BIND, "\n", "send-line", NULL);
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el_set (self->editline, EL_ADDFN, "complete",
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"Complete word", on_editline_complete);
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el_set (self->editline, EL_BIND, "^I", "complete", NULL);
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}
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#endif // HAVE_EDITLINE
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