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Use binary search for key bindings

This commit is contained in:
Přemysl Eric Janouch 2017-01-24 16:23:20 +01:00
parent 9697898b42
commit 912b424515
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 58 additions and 41 deletions
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nncmpp.c
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@ -1665,59 +1665,75 @@ static struct binding
{
const char *key; ///< Key definition
enum action action; ///< Action to take
termo_key_t decoded; ///< Decoded key definition
}
g_default_bindings[] =
{
{ "Escape", ACTION_QUIT },
{ "q", ACTION_QUIT },
{ "C-l", ACTION_REDRAW },
{ "M-Tab", ACTION_LAST_TAB },
{ "F1", ACTION_HELP_TAB },
{ "Escape", ACTION_QUIT, {}},
{ "q", ACTION_QUIT, {}},
{ "C-l", ACTION_REDRAW, {}},
{ "M-Tab", ACTION_LAST_TAB, {}},
{ "F1", ACTION_HELP_TAB, {}},
{ "Home", ACTION_GOTO_TOP },
{ "End", ACTION_GOTO_BOTTOM },
{ "M-<", ACTION_GOTO_TOP },
{ "M->", ACTION_GOTO_BOTTOM },
{ "Up", ACTION_GOTO_ITEM_PREVIOUS },
{ "Down", ACTION_GOTO_ITEM_NEXT },
{ "k", ACTION_GOTO_ITEM_PREVIOUS },
{ "j", ACTION_GOTO_ITEM_NEXT },
{ "PageUp", ACTION_GOTO_PAGE_PREVIOUS },
{ "PageDown", ACTION_GOTO_PAGE_NEXT },
{ "C-p", ACTION_GOTO_ITEM_PREVIOUS },
{ "C-n", ACTION_GOTO_ITEM_NEXT },
{ "C-b", ACTION_GOTO_PAGE_PREVIOUS },
{ "C-f", ACTION_GOTO_PAGE_NEXT },
{ "Home", ACTION_GOTO_TOP, {}},
{ "End", ACTION_GOTO_BOTTOM, {}},
{ "M-<", ACTION_GOTO_TOP, {}},
{ "M->", ACTION_GOTO_BOTTOM, {}},
{ "Up", ACTION_GOTO_ITEM_PREVIOUS, {}},
{ "Down", ACTION_GOTO_ITEM_NEXT, {}},
{ "k", ACTION_GOTO_ITEM_PREVIOUS, {}},
{ "j", ACTION_GOTO_ITEM_NEXT, {}},
{ "PageUp", ACTION_GOTO_PAGE_PREVIOUS, {}},
{ "PageDown", ACTION_GOTO_PAGE_NEXT, {}},
{ "C-p", ACTION_GOTO_ITEM_PREVIOUS, {}},
{ "C-n", ACTION_GOTO_ITEM_NEXT, {}},
{ "C-b", ACTION_GOTO_PAGE_PREVIOUS, {}},
{ "C-f", ACTION_GOTO_PAGE_NEXT, {}},
// Not sure how to set these up, they're pretty arbitrary so far
{ "Enter", ACTION_CHOOSE },
{ "Delete", ACTION_DELETE },
{ "a", ACTION_MPD_ADD },
{ "r", ACTION_MPD_REPLACE },
{ "Enter", ACTION_CHOOSE, {}},
{ "Delete", ACTION_DELETE, {}},
{ "a", ACTION_MPD_ADD, {}},
{ "r", ACTION_MPD_REPLACE, {}},
{ "Left", ACTION_MPD_PREVIOUS },
{ "Right", ACTION_MPD_NEXT },
{ "h", ACTION_MPD_PREVIOUS },
{ "l", ACTION_MPD_NEXT },
{ "Space", ACTION_MPD_TOGGLE },
{ "C-Space", ACTION_MPD_STOP },
{ "M-PageUp", ACTION_MPD_VOLUME_UP },
{ "M-PageDown", ACTION_MPD_VOLUME_DOWN },
{ "Left", ACTION_MPD_PREVIOUS, {}},
{ "Right", ACTION_MPD_NEXT, {}},
{ "h", ACTION_MPD_PREVIOUS, {}},
{ "l", ACTION_MPD_NEXT, {}},
{ "Space", ACTION_MPD_TOGGLE, {}},
{ "C-Space", ACTION_MPD_STOP, {}},
{ "M-PageUp", ACTION_MPD_VOLUME_UP, {}},
{ "M-PageDown", ACTION_MPD_VOLUME_DOWN, {}},
};
static int
app_binding_cmp (const void *a, const void *b)
{
return termo_keycmp (g_ctx.tk,
&((struct binding *) a)->decoded, &((struct binding *) b)->decoded);
}
static void
app_init_bindings (void)
{
for (size_t i = 0; i < N_ELEMENTS (g_default_bindings); i++)
{
struct binding *binding = &g_default_bindings[i];
hard_assert (!*termo_strpkey_utf8 (g_ctx.tk,
binding->key, &binding->decoded, TERMO_FORMAT_ALTISMETA));
}
qsort (g_default_bindings, N_ELEMENTS (g_default_bindings),
sizeof *g_default_bindings, app_binding_cmp);
}
static bool
app_process_termo_event (termo_key_t *event)
{
// TODO: pre-parse the keys, order them by termo_keycmp() and binary search
for (size_t i = 0; i < N_ELEMENTS (g_default_bindings); i++)
{
struct binding *binding = &g_default_bindings[i];
termo_key_t key;
hard_assert (!*termo_strpkey_utf8 (g_ctx.tk, binding->key, &key,
TERMO_FORMAT_ALTISMETA));
if (!termo_keycmp (g_ctx.tk, event, &key))
return app_process_action (binding->action);
}
struct binding dummy = { NULL, 0, *event }, *binding =
bsearch (&dummy, g_default_bindings, N_ELEMENTS (g_default_bindings),
sizeof *g_default_bindings, app_binding_cmp);
if (binding)
return app_process_action (binding->action);
// TODO: parametrize actions, put this among other bindings
if (!(event->modifiers & ~TERMO_KEYMOD_ALT)
@ -3037,6 +3053,7 @@ main (int argc, char *argv[])
app_init_terminal ();
signals_setup_handlers ();
app_init_poller_events ();
app_init_bindings ();
if (g_debug_mode)
app_prepend_tab (debug_tab_init ());