From 04e2b7b214944044250edfea5634cbf919473cf4 Mon Sep 17 00:00:00 2001 From: Jonas Fonseca Date: Thu, 8 Jun 2006 02:03:16 +0200 Subject: [PATCH] Add support for keybindings The syntax is bind Keybindings are resolved by first looking in the keymap of the active view, then in the generic keymap, and finally in the built-in default keybindings. Examples to put in ~/.tigrc: bind main w scroll-line-up bind main s scroll-line-down bind diff a previous bind diff d next bind diff b move-first-line bind generic g view-next --- tig.c | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----- tigrc | 16 ++++++++ 2 files changed, 151 insertions(+), 9 deletions(-) diff --git a/tig.c b/tig.c index 708213e..cb943bc 100644 --- a/tig.c +++ b/tig.c @@ -284,7 +284,7 @@ sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) REQ_(SHOW_VERSION, "Show version information"), \ REQ_(STOP_LOADING, "Stop all loading views"), \ REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ - REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), + REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") /* User action requests. */ @@ -294,7 +294,8 @@ enum request { /* Offset all requests to avoid conflicts with ncurses getch values. */ REQ_OFFSET = KEY_MAX + 1, - REQ_INFO + REQ_INFO, + REQ_UNKNOWN, #undef REQ_GROUP #undef REQ_ @@ -302,17 +303,34 @@ enum request { struct request_info { enum request request; + char *name; + int namelen; char *help; }; static struct request_info req_info[] = { -#define REQ_GROUP(help) { 0, (help) }, -#define REQ_(req, help) { REQ_##req, (help) } +#define REQ_GROUP(help) { 0, NULL, 0, (help) }, +#define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } REQ_INFO #undef REQ_GROUP #undef REQ_ }; +static enum request +get_request(const char *name) +{ + int namelen = strlen(name); + int i; + + for (i = 0; i < ARRAY_SIZE(req_info); i++) + if (req_info[i].namelen == namelen && + !string_enum_compare(req_info[i].name, name, namelen)) + return req_info[i].request; + + return REQ_UNKNOWN; +} + + /* * Options */ @@ -619,6 +637,7 @@ struct line { struct keybinding { int alias; enum request request; + struct keybinding *next; }; static struct keybinding default_keybindings[] = { @@ -670,11 +689,62 @@ static struct keybinding default_keybindings[] = { { KEY_RESIZE, REQ_SCREEN_RESIZE }, }; +#define KEYMAP_INFO \ + KEYMAP_(GENERIC), \ + KEYMAP_(MAIN), \ + KEYMAP_(DIFF), \ + KEYMAP_(LOG), \ + KEYMAP_(PAGER), \ + KEYMAP_(HELP) \ + +enum keymap { +#define KEYMAP_(name) KEYMAP_##name + KEYMAP_INFO +#undef KEYMAP_ +}; + +static struct int_map keymap_table[] = { +#define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } + KEYMAP_INFO +#undef KEYMAP_ +}; + +#define set_keymap(map, name) \ + set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) + +static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; + +static void +add_keybinding(enum keymap keymap, enum request request, int key) +{ + struct keybinding *keybinding; + + keybinding = calloc(1, sizeof(*keybinding)); + if (!keybinding) + die("Failed to allocate keybinding"); + + keybinding->alias = key; + keybinding->request = request; + keybinding->next = keybindings[keymap]; + keybindings[keymap] = keybinding; +} + +/* Looks for a key binding first in the given map, then in the generic map, and + * lastly in the default keybindings. */ static enum request -get_keybinding(int key) +get_keybinding(enum keymap keymap, int key) { + struct keybinding *kbd; int i; + for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) + if (kbd->alias == key) + return kbd->request; + + for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) + if (kbd->alias == key) + return kbd->request; + for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) if (default_keybindings[i].alias == key) return default_keybindings[i].request; @@ -718,6 +788,21 @@ static struct key key_table[] = { { "F12", KEY_F(12) }, }; +static int +get_key_value(const char *name) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(key_table); i++) + if (!strcasecmp(key_table[i].name, name)) + return key_table[i].value; + + if (strlen(name) == 1 && isprint(*name)) + return (int) *name; + + return ERR; +} + static char * get_key(enum request request) { @@ -872,6 +957,41 @@ option_set_command(int argc, char *argv[]) return ERR; } +/* Wants: mode request key */ +static int +option_bind_command(int argc, char *argv[]) +{ + enum request request; + int keymap; + int key; + + if (argc != 3) { + config_msg = "Wrong number of arguments given to bind command"; + return ERR; + } + + if (set_keymap(&keymap, argv[0]) == ERR) { + config_msg = "Unknown key map"; + return ERR; + } + + key = get_key_value(argv[1]); + if (key == ERR) { + config_msg = "Unknown key"; + return ERR; + } + + request = get_request(argv[2]); + if (request == REQ_UNKNOWN) { + config_msg = "Unknown request name"; + return ERR; + } + + add_keybinding(keymap, request, key); + + return OK; +} + static int set_option(char *opt, char *value) { @@ -898,6 +1018,9 @@ set_option(char *opt, char *value) if (!strcmp(opt, "set")) return option_set_command(argc, argv); + if (!strcmp(opt, "bind")) + return option_bind_command(argc, argv); + return ERR; } @@ -987,6 +1110,8 @@ struct view { struct view_ops *ops; /* View operations */ + enum keymap keymap; /* What keymap does this view have */ + char cmd[SIZEOF_CMD]; /* Command buffer */ char ref[SIZEOF_REF]; /* Hovered commit reference */ char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ @@ -1028,11 +1153,11 @@ struct view_ops { static struct view_ops pager_ops; static struct view_ops main_ops; -#define VIEW_STR(name, cmd, env, ref, ops) \ - { name, cmd, #env, ref, ops } +#define VIEW_STR(name, cmd, env, ref, ops, map) \ + { name, cmd, #env, ref, ops, map} #define VIEW_(id, name, ops, ref) \ - VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) + VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) static struct view views[] = { @@ -2703,7 +2828,8 @@ main(int argc, char *argv[]) /* Refresh, accept single keystroke of input */ key = wgetch(status_win); - request = get_keybinding(key); + + request = get_keybinding(display[current_view]->keymap, key); /* Some low-level request handling. This keeps access to * status_win restricted. */ diff --git a/tigrc b/tigrc index 95e6987..fa08c5b 100644 --- a/tigrc +++ b/tigrc @@ -1,6 +1,7 @@ # # Base configuration # +# Syntax: set