mirror of
https://github.com/irssi/irssi.git
synced 2025-02-02 15:08:01 -05:00
Keyboard code fixes - meta-arrows etc. should work now correctly.
git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1738 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen
cras
parent
a444a3c92a
commit
22e5f3a3fe
@ -38,44 +38,15 @@ static GHashTable *keys, *default_keys;
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If the key isn't used, used_keys[key] is zero. */
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static char used_keys[256];
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/* contains list of all key bindings of which command is "key" -
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this can be used to check fast if some command queue exists or not.
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Format is _always_ in key1-key2-key3 format (like ^W-^N,
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not ^W^N) */
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/* Contains a list of all possible executable key bindings (not "key" keys).
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Format is _always_ in key1-key2-key3 format and fully extracted, like
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^[-[-A, not meta-A */
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static GTree *key_states;
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/* List of all key combo names */
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static GSList *key_combos;
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static int key_config_frozen;
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struct KEYBOARD_REC {
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/* example:
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/BIND ^[ key meta
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/BIND meta-O key meta2
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/BIND meta-[ key meta2
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/BIND meta2-C key right
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/BIND ^W-meta-right /echo ^W Meta-right key pressed
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When ^W Meta-Right is pressed, the full char combination
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is "^W^[^[[C".
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We'll get there with key states:
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^W - key_prev_state = NULL, key_state = NULL -> ^W
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^[ - key_prev_state = NULL, key_state = ^W -> meta
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^[ - key_prev_state = ^W, key_state = meta -> meta
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[ - key_prev_state = ^W-meta, key_state = meta -> meta2
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C - key_prev_state = ^W-meta, key_state = meta2 -> right
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key_prev_state = ^W-meta, key_state = right -> ^W-meta-right
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key_state is moved to key_prev_state if there's nothing else in
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/BINDs matching for key_state-newkey.
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^X^Y equals to ^X-^Y, ABC equals to A-B-C unless there's ABC
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named key. ^ can be used with ^^ and - with -- */
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char *key_state, *key_prev_state;
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/* GUI specific data sent in "key pressed" signal */
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void *gui_data;
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char *key_state; /* the ongoing key combo */
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void *gui_data; /* GUI specific data sent in "key pressed" signal */
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};
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/* Creates a new "keyboard" - this is used only for keeping track of
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@ -98,7 +69,6 @@ void keyboard_destroy(KEYBOARD_REC *keyboard)
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signal_emit("keyboard destroyed", 1, keyboard);
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g_free_not_null(keyboard->key_state);
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g_free_not_null(keyboard->key_prev_state);
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g_free(keyboard);
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}
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@ -198,69 +168,163 @@ KEYINFO_REC *key_info_find(const char *id)
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return NULL;
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}
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static KEY_REC *key_combo_find(const char *key)
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static int expand_key(const char *key, GSList **out);
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#define expand_out_char(out, c) \
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{ \
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GSList *tmp; \
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for (tmp = out; tmp != NULL; tmp = tmp->next) \
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g_string_append_c(tmp->data, c); \
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}
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#define expand_out_free(out) \
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{ \
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GSList *tmp; \
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for (tmp = out; tmp != NULL; tmp = tmp->next) \
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g_string_free(tmp->data, TRUE); \
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g_slist_free(out); out = NULL; \
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}
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static int expand_combo(const char *start, const char *end, GSList **out)
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{
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KEY_REC *rec;
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KEYINFO_REC *info;
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GSList *tmp;
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GSList *tmp, *tmp2, *list, *copy, *newout;
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char *str;
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if (start == end) {
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/* single key */
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expand_out_char(*out, *start);
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return TRUE;
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}
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info = key_info_find("key");
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if (info == NULL)
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return NULL;
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return FALSE;
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/* get list of all key combos that generate the named combo.. */
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list = NULL;
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str = g_strndup(start, (int) (end-start)+1);
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for (tmp = info->keys; tmp != NULL; tmp = tmp->next) {
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KEY_REC *rec = tmp->data;
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if (strcmp(rec->data, key) == 0)
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return rec;
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if (strcmp(rec->data, str) == 0)
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list = g_slist_append(list, rec);
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}
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g_free(str);
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if (list == NULL)
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return FALSE;
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if (list->next == NULL) {
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/* only one way to generate the combo, good */
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rec = list->data;
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return expand_key(rec->key, out);
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}
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return NULL;
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/* multiple ways to generate the combo -
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we'll need to include all of them in output */
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newout = NULL;
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for (tmp = list->next; tmp != NULL; tmp = tmp->next) {
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KEY_REC *rec = tmp->data;
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copy = NULL;
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for (tmp2 = *out; tmp2 != NULL; tmp2 = tmp2->next) {
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GString *str = tmp2->data;
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copy = g_slist_append(copy, g_string_new(str->str));
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}
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if (!expand_key(rec->key, ©)) {
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/* illegal key combo, remove from list */
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expand_out_free(copy);
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} else {
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newout = g_slist_concat(newout, copy);
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}
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}
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rec = list->data;
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if (!expand_key(rec->key, out)) {
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/* illegal key combo, remove from list */
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expand_out_free(*out);
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}
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*out = g_slist_concat(*out, newout);
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return *out != NULL;
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}
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static void key_states_scan_key(const char *key, KEY_REC *rec, GString *temp)
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/* Expand key code - returns TRUE if successful. */
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static int expand_key(const char *key, GSList **out)
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{
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char **keys, **tmp, *p;
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GSList *tmp;
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const char *start;
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int last_hyphen;
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g_string_truncate(temp, 0);
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/* meta-^W^Gfoo -> meta-^W-^G-f-o-o */
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keys = g_strsplit(key, "-", -1);
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for (tmp = keys; *tmp != NULL; tmp++) {
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if (key_combo_find(*tmp)) {
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/* key combo */
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g_string_append(temp, *tmp);
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g_string_append_c(temp, '-');
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continue;
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}
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if (**tmp == '\0') {
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/* '-' */
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g_string_append(temp, "--");
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continue;
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}
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for (p = *tmp; *p != '\0'; p++) {
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g_string_append_c(temp, *p);
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if (*p == '^') {
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/* ctrl-code */
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if (p[1] != '\0')
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p++;
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g_string_append_c(temp, *p);
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/* meta-^W^Gf -> ^[-^W-^G-f */
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start = NULL; last_hyphen = TRUE;
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for (; *key != '\0'; key++) {
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if (*key == '-') {
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if (last_hyphen) {
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expand_out_char(*out, '-');
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expand_out_char(*out, '-');
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}
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last_hyphen = !last_hyphen;
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} else if (*key == '^') {
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/* ctrl-code */
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if (key[1] != '\0')
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key++;
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g_string_append_c(temp, '-');
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expand_out_char(*out, '^');
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expand_out_char(*out, *key);
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expand_out_char(*out, '-');
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last_hyphen = TRUE;
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} else {
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/* key / combo */
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if (start == NULL)
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start = key;
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last_hyphen = FALSE;
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continue;
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}
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if (start != NULL) {
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if (!expand_combo(start, key-1, out))
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return FALSE;
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expand_out_char(*out, '-');
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start = NULL;
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}
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}
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g_strfreev(keys);
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if (temp->len > 0) {
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g_string_truncate(temp, temp->len-1);
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if (start != NULL)
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return expand_combo(start, key-1, out);
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if (temp->str[1] == '-' || temp->str[1] == '\0')
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used_keys[(int) (unsigned char) temp->str[0]] = 1;
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g_tree_insert(key_states, g_strdup(temp->str), rec);
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for (tmp = *out; tmp != NULL; tmp = tmp->next) {
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GString *str = tmp->data;
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g_string_truncate(str, str->len-1);
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}
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return TRUE;
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}
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static void key_states_scan_key(const char *key, KEY_REC *rec)
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{
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GSList *tmp, *out;
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if (strcmp(rec->info->id, "key") == 0)
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return;
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out = g_slist_append(NULL, g_string_new(NULL));
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if (expand_key(key, &out)) {
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for (tmp = out; tmp != NULL; tmp = tmp->next) {
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GString *str = tmp->data;
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if (str->str[1] == '-' || str->str[1] == '\0')
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used_keys[(int)(unsigned char)str->str[0]] = 1;
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g_tree_insert(key_states, g_strdup(str->str), rec);
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}
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}
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expand_out_free(out);
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}
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static int key_state_destroy(char *key)
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@ -455,7 +519,7 @@ static int key_emit_signal(KEYBOARD_REC *keyboard, KEY_REC *key)
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return consumed;
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}
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int key_states_search(const char *combo, const char *search)
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static int key_states_search(const char *combo, const char *search)
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{
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while (*search != '\0') {
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if (*combo != *search)
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@ -463,7 +527,7 @@ int key_states_search(const char *combo, const char *search)
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search++; combo++;
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}
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return *combo == '\0' || *combo == '-' ? 0 : -1;
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return 0;
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}
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/* Returns TRUE if key press was consumed. Control characters should be sent
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@ -471,96 +535,43 @@ int key_states_search(const char *combo, const char *search)
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int key_pressed(KEYBOARD_REC *keyboard, const char *key)
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{
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KEY_REC *rec;
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char *str;
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int consumed;
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char *combo;
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int consumed, single_key;
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g_return_val_if_fail(keyboard != NULL, FALSE);
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g_return_val_if_fail(key != NULL && *key != '\0', FALSE);
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if (keyboard->key_state == NULL) {
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if (key[1] == '\0' &&
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!used_keys[(int) (unsigned char) key[0]]) {
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/* fast check - key not used */
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return FALSE;
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}
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rec = g_tree_search(key_states,
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(GSearchFunc) key_states_search,
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(void *) key);
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if (rec == NULL ||
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(g_tree_lookup(key_states, (void *) key) != NULL &&
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strcmp(rec->info->id, "key") != 0)) {
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/* a single non-combo key was pressed */
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rec = g_hash_table_lookup(keys, key);
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if (rec == NULL)
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return FALSE;
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consumed = key_emit_signal(keyboard, rec);
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/* never consume non-control characters */
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return consumed && key[1] != '\0';
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}
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single_key = keyboard->key_state == NULL && key[1] == '\0';
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if (single_key && !used_keys[(int) (unsigned char) key[0]]) {
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/* fast check - key not used */
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return FALSE;
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}
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if (keyboard->key_state == NULL) {
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/* first key in combo */
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rec = g_tree_lookup(key_states, (void *) key);
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} else {
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/* continuing key combination */
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str = g_strconcat(keyboard->key_state, "-", key, NULL);
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rec = g_tree_lookup(key_states, str);
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g_free(str);
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}
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if (rec != NULL && strcmp(rec->info->id, "key") == 0) {
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/* combo has a specified name, use it */
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g_free_not_null(keyboard->key_state);
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keyboard->key_state = g_strdup(rec->data);
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} else {
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/* some unnamed key - move key_state after key_prev_state
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and replace key_state with this new key */
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if (keyboard->key_prev_state == NULL)
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keyboard->key_prev_state = keyboard->key_state;
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else {
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str = g_strconcat(keyboard->key_prev_state, "-",
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keyboard->key_state, NULL);
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g_free(keyboard->key_prev_state);
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g_free(keyboard->key_state);
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keyboard->key_prev_state = str;
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}
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keyboard->key_state = g_strdup(key);
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}
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/* what to do with the key combo? */
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str = keyboard->key_prev_state == NULL ?
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g_strdup(keyboard->key_state) :
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g_strconcat(keyboard->key_prev_state, "-",
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keyboard->key_state, NULL);
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rec = g_tree_lookup(key_states, str);
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if (rec != NULL) {
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if (strcmp(rec->info->id, "key") == 0)
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rec = g_tree_lookup(key_states, rec->data);
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if (rec != NULL) {
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/* full key combo */
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key_emit_signal(keyboard, rec);
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rec = NULL;
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}
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} else {
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/* check that combo is possible */
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rec = g_tree_search(key_states,
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(GSearchFunc) key_states_search, str);
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}
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combo = keyboard->key_state == NULL ? g_strdup(key) :
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g_strconcat(keyboard->key_state, "-", key, NULL);
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g_free_and_null(keyboard->key_state);
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rec = g_tree_search(key_states,
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(GSearchFunc) key_states_search,
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combo);
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if (rec == NULL) {
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/* a) key combo finished, b) unknown key combo, abort */
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g_free_and_null(keyboard->key_prev_state);
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g_free_and_null(keyboard->key_state);
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/* unknown key combo */
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g_free(combo);
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return FALSE;
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}
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g_free(str);
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return TRUE;
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if (g_tree_lookup(key_states, combo) != rec) {
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/* key combo continues.. */
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keyboard->key_state = combo;
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return TRUE;
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}
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/* finished key combo, execute */
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g_free(combo);
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consumed = key_emit_signal(keyboard, rec);
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/* never consume non-control characters */
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return consumed && !single_key;
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}
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void keyboard_entry_redirect(SIGNAL_FUNC func, const char *entry,
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@ -785,7 +796,6 @@ void keyboard_init(void)
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(GCompareFunc) g_str_equal);
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keyinfos = NULL;
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key_states = g_tree_new((GCompareFunc) strcmp);
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key_combos = NULL;
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key_config_frozen = 0;
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memset(used_keys, 0, sizeof(used_keys));
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