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/* Copyright (c) 2002,2003,2004,2009 James M. Kretchmar
*
* This file is part of Owl.
*
* Owl is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Owl is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Owl. If not, see <http://www.gnu.org/licenses/>.
*
* ---------------------------------------------------------------
*
* As of Owl version 2.1.12 there are patches contributed by
* developers of the branched BarnOwl project, Copyright (c)
* 2006-2009 The BarnOwl Developers. All rights reserved.
*/
#include <ctype.h>
#include <string.h>
#include "owl.h"
static const char fileIdent[] = "$Id: keybinding.c,v 1.6 2009/03/29 12:38:21 kretch Exp $";
/*
* TODO: Idea for allowing functions to be user-specified ---
* Have function have a context bitmask that says where it
* can be used, and have keymaps also have one, and compare
* the two when setting.
*
*/
/* sets up a new keybinding for a command */
int owl_keybinding_init(owl_keybinding *kb, char *keyseq, char *command, void (*function_fn)(void), char *desc)
{
char **ktokens;
int nktokens, i;
owl_function_debugmsg("owl_keybinding_init: creating binding for <%s> with desc: <%s>", keyseq, desc);
if (command && !function_fn) {
kb->type = OWL_KEYBINDING_COMMAND;
} else if (!command && function_fn) {
kb->type = OWL_KEYBINDING_FUNCTION;
} else {
return(-1);
}
ktokens = atokenize(keyseq, " ", &nktokens);
if (!ktokens) return(-1);
if (nktokens > OWL_KEYMAP_MAXSTACK) {
atokenize_free(ktokens, nktokens);
return(-1);
}
kb->j = owl_malloc((nktokens+1)*sizeof(int));
for (i=0; i<nktokens; i++) {
kb->j[i] = owl_keypress_fromstring(ktokens[i]);
if (kb->j[i] == ERR) {
atokenize_free(ktokens, nktokens);
owl_free(kb->j);
return(-1);
}
}
kb->j[i] = 0;
atokenize_free(ktokens, nktokens);
if (command) kb->command = owl_strdup(command);
kb->function_fn = function_fn;
if (desc) kb->desc = owl_strdup(desc);
else kb->desc = NULL;
return(0);
}
/* Releases data associated with a keybinding */
void owl_keybinding_free(owl_keybinding *kb)
{
if (kb->j) owl_free(kb->j);
if (kb->desc) owl_free(kb->desc);
if (kb->command) owl_free(kb->command);
}
/* Releases data associated with a keybinding, and the kb itself */
void owl_keybinding_free_all(owl_keybinding *kb)
{
owl_keybinding_free(kb);
owl_free(kb);
}
/* executes a keybinding */
void owl_keybinding_execute(owl_keybinding *kb, int j)
{
if (kb->type == OWL_KEYBINDING_COMMAND && kb->command) {
owl_function_command_norv(kb->command);
} else if (kb->type == OWL_KEYBINDING_FUNCTION && kb->function_fn) {
kb->function_fn();
}
}
/* returns 0 on success */
int owl_keybinding_stack_tostring(int *j, char *buff, int bufflen)
{
char *pos = buff;
int rem = bufflen;
int i, n;
for (i=0; j[i]; i++) {
owl_keypress_tostring(j[i], 0, pos, rem-1);
if (j[i+1]) strcat(pos, " ");
n = strlen(pos);
pos += n;
rem -= n;
}
return 0;
}
/* returns 0 on success */
int owl_keybinding_tostring(owl_keybinding *kb, char *buff, int bufflen)
{
return owl_keybinding_stack_tostring(kb->j, buff, bufflen);
}
char *owl_keybinding_get_desc(owl_keybinding *kb)
{
return kb->desc;
}
/* returns 0 on no match, 1 on subset match, and 2 on complete match */
int owl_keybinding_match(owl_keybinding *kb, int *kpstack)
{
int *kbstack = kb->j;
while (*kbstack && *kpstack) {
if (*kbstack != *kpstack) {
return 0;
}
kbstack++; kpstack++;
}
if (!*kpstack && !*kbstack) {
return 2;
} else if (!*kpstack) {
return 1;
} else {
return 0;
}
}
/* returns 1 if keypress sequence is the same */
int owl_keybinding_equal(owl_keybinding *kb1, owl_keybinding *kb2)
{
int *j1 = kb1->j;
int *j2 = kb2->j;
while (*j1 && *j2) {
if (*(j1++) != *(j2++)) return(0);
}
if (*j1 != *j2) return(0);
return(1);
}
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