1/* $Id: key-bindings.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */
2
3/*
4 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20
21#include <ctype.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include "tmux.h"
26
27SPLAY_GENERATE(key_bindings, key_binding, entry, key_bindings_cmp);
28
29struct key_bindings	key_bindings;
30struct key_bindings	dead_key_bindings;
31
32int
33key_bindings_cmp(struct key_binding *bd1, struct key_binding *bd2)
34{
35	int	key1, key2;
36
37	key1 = bd1->key & ~KEYC_PREFIX;
38	key2 = bd2->key & ~KEYC_PREFIX;
39	if (key1 != key2)
40		return (key1 - key2);
41
42	if (bd1->key & KEYC_PREFIX && !(bd2->key & KEYC_PREFIX))
43		return (-1);
44	if (bd2->key & KEYC_PREFIX && !(bd1->key & KEYC_PREFIX))
45		return (1);
46	return (0);
47}
48
49struct key_binding *
50key_bindings_lookup(int key)
51{
52	struct key_binding	bd;
53
54	bd.key = key;
55	return (SPLAY_FIND(key_bindings, &key_bindings, &bd));
56}
57
58void
59key_bindings_add(int key, int can_repeat, struct cmd_list *cmdlist)
60{
61	struct key_binding	*bd;
62
63	key_bindings_remove(key);
64
65	bd = xmalloc(sizeof *bd);
66	bd->key = key;
67	SPLAY_INSERT(key_bindings, &key_bindings, bd);
68
69	bd->can_repeat = can_repeat;
70	bd->cmdlist = cmdlist;
71}
72
73void
74key_bindings_remove(int key)
75{
76	struct key_binding	*bd;
77
78	if ((bd = key_bindings_lookup(key)) == NULL)
79		return;
80	SPLAY_REMOVE(key_bindings, &key_bindings, bd);
81	SPLAY_INSERT(key_bindings, &dead_key_bindings, bd);
82}
83
84void
85key_bindings_clean(void)
86{
87	struct key_binding	*bd;
88
89	while (!SPLAY_EMPTY(&dead_key_bindings)) {
90		bd = SPLAY_ROOT(&dead_key_bindings);
91		SPLAY_REMOVE(key_bindings, &dead_key_bindings, bd);
92		cmd_list_free(bd->cmdlist);
93		xfree(bd);
94	}
95}
96
97void
98key_bindings_init(void)
99{
100	static const struct {
101		int			 key;
102		int			 can_repeat;
103		const struct cmd_entry	*entry;
104	} table[] = {
105		{ ' ',			  0, &cmd_next_layout_entry },
106		{ '!', 			  0, &cmd_break_pane_entry },
107		{ '"', 			  0, &cmd_split_window_entry },
108		{ '#', 			  0, &cmd_list_buffers_entry },
109		{ '$',			  0, &cmd_command_prompt_entry },
110		{ '%', 			  0, &cmd_split_window_entry },
111		{ '&', 			  0, &cmd_confirm_before_entry },
112		{ '(',                    0, &cmd_switch_client_entry },
113		{ ')',                    0, &cmd_switch_client_entry },
114		{ ',', 			  0, &cmd_command_prompt_entry },
115		{ '-', 			  0, &cmd_delete_buffer_entry },
116		{ '.', 			  0, &cmd_command_prompt_entry },
117		{ '0', 			  0, &cmd_select_window_entry },
118		{ '1', 			  0, &cmd_select_window_entry },
119		{ '2', 			  0, &cmd_select_window_entry },
120		{ '3', 			  0, &cmd_select_window_entry },
121		{ '4', 			  0, &cmd_select_window_entry },
122		{ '5', 			  0, &cmd_select_window_entry },
123		{ '6', 			  0, &cmd_select_window_entry },
124		{ '7', 			  0, &cmd_select_window_entry },
125		{ '8', 			  0, &cmd_select_window_entry },
126		{ '9', 			  0, &cmd_select_window_entry },
127		{ ':', 			  0, &cmd_command_prompt_entry },
128		{ ';', 			  0, &cmd_last_pane_entry },
129		{ '=', 			  0, &cmd_choose_buffer_entry },
130		{ '?', 			  0, &cmd_list_keys_entry },
131		{ 'D',			  0, &cmd_choose_client_entry },
132		{ 'L',			  0, &cmd_switch_client_entry },
133		{ '[', 			  0, &cmd_copy_mode_entry },
134		{ '\'',			  0, &cmd_command_prompt_entry },
135		{ '\002', /* C-b */	  0, &cmd_send_prefix_entry },
136		{ '\017', /* C-o */	  0, &cmd_rotate_window_entry },
137		{ '\032', /* C-z */	  0, &cmd_suspend_client_entry },
138		{ ']', 			  0, &cmd_paste_buffer_entry },
139		{ 'c', 			  0, &cmd_new_window_entry },
140		{ 'd', 			  0, &cmd_detach_client_entry },
141		{ 'f', 			  0, &cmd_command_prompt_entry },
142		{ 'i',			  0, &cmd_display_message_entry },
143		{ 'l', 			  0, &cmd_last_window_entry },
144		{ 'n', 			  0, &cmd_next_window_entry },
145		{ 'o', 			  0, &cmd_select_pane_entry },
146		{ 'p', 			  0, &cmd_previous_window_entry },
147		{ 'q',			  0, &cmd_display_panes_entry },
148		{ 'r', 			  0, &cmd_refresh_client_entry },
149		{ 's', 			  0, &cmd_choose_session_entry },
150		{ 't', 			  0, &cmd_clock_mode_entry },
151		{ 'w', 			  0, &cmd_choose_window_entry },
152		{ 'x', 			  0, &cmd_confirm_before_entry },
153		{ '{',			  0, &cmd_swap_pane_entry },
154		{ '}',			  0, &cmd_swap_pane_entry },
155		{ '~',			  0, &cmd_show_messages_entry },
156		{ '1' | KEYC_ESCAPE,	  0, &cmd_select_layout_entry },
157		{ '2' | KEYC_ESCAPE,	  0, &cmd_select_layout_entry },
158		{ '3' | KEYC_ESCAPE,	  0, &cmd_select_layout_entry },
159		{ '4' | KEYC_ESCAPE,	  0, &cmd_select_layout_entry },
160		{ '5' | KEYC_ESCAPE,	  0, &cmd_select_layout_entry },
161		{ KEYC_PPAGE, 		  0, &cmd_copy_mode_entry },
162		{ 'n' | KEYC_ESCAPE, 	  0, &cmd_next_window_entry },
163		{ 'o' | KEYC_ESCAPE,	  0, &cmd_rotate_window_entry },
164		{ 'p' | KEYC_ESCAPE, 	  0, &cmd_previous_window_entry },
165		{ KEYC_UP, 		  1, &cmd_select_pane_entry },
166		{ KEYC_DOWN, 		  1, &cmd_select_pane_entry },
167		{ KEYC_LEFT, 		  1, &cmd_select_pane_entry },
168		{ KEYC_RIGHT, 		  1, &cmd_select_pane_entry },
169		{ KEYC_UP | KEYC_ESCAPE,  1, &cmd_resize_pane_entry },
170		{ KEYC_DOWN | KEYC_ESCAPE,  1, &cmd_resize_pane_entry },
171		{ KEYC_LEFT | KEYC_ESCAPE,  1, &cmd_resize_pane_entry },
172		{ KEYC_RIGHT | KEYC_ESCAPE, 1, &cmd_resize_pane_entry },
173		{ KEYC_UP | KEYC_CTRL,    1, &cmd_resize_pane_entry },
174		{ KEYC_DOWN | KEYC_CTRL,  1, &cmd_resize_pane_entry },
175		{ KEYC_LEFT | KEYC_CTRL,  1, &cmd_resize_pane_entry },
176		{ KEYC_RIGHT | KEYC_CTRL, 1, &cmd_resize_pane_entry },
177	};
178	u_int		 i;
179	struct cmd	*cmd;
180	struct cmd_list	*cmdlist;
181
182	SPLAY_INIT(&key_bindings);
183
184	for (i = 0; i < nitems(table); i++) {
185		cmdlist = xmalloc(sizeof *cmdlist);
186		TAILQ_INIT(&cmdlist->list);
187		cmdlist->references = 1;
188
189		cmd = xmalloc(sizeof *cmd);
190		cmd->entry = table[i].entry;
191		if (cmd->entry->key_binding != NULL)
192			cmd->entry->key_binding(cmd, table[i].key);
193		else
194			cmd->args = args_create(0);
195		TAILQ_INSERT_HEAD(&cmdlist->list, cmd, qentry);
196
197		key_bindings_add(
198		    table[i].key | KEYC_PREFIX, table[i].can_repeat, cmdlist);
199	}
200}
201
202void printflike2
203key_bindings_error(struct cmd_ctx *ctx, const char *fmt, ...)
204{
205	va_list	ap;
206	char   *msg;
207
208	va_start(ap, fmt);
209	xvasprintf(&msg, fmt, ap);
210	va_end(ap);
211
212	*msg = toupper((u_char) *msg);
213	status_message_set(ctx->curclient, "%s", msg);
214	xfree(msg);
215}
216
217void printflike2
218key_bindings_print(struct cmd_ctx *ctx, const char *fmt, ...)
219{
220	struct winlink	*wl = ctx->curclient->session->curw;
221	va_list		 ap;
222
223	if (wl->window->active->mode != &window_copy_mode) {
224		window_pane_reset_mode(wl->window->active);
225		window_pane_set_mode(wl->window->active, &window_copy_mode);
226		window_copy_init_for_output(wl->window->active);
227	}
228
229	va_start(ap, fmt);
230	window_copy_vadd(wl->window->active, fmt, ap);
231	va_end(ap);
232}
233
234void printflike2
235key_bindings_info(struct cmd_ctx *ctx, const char *fmt, ...)
236{
237	va_list	ap;
238	char   *msg;
239
240	if (options_get_number(&global_options, "quiet"))
241		return;
242
243	va_start(ap, fmt);
244	xvasprintf(&msg, fmt, ap);
245	va_end(ap);
246
247	*msg = toupper((u_char) *msg);
248	status_message_set(ctx->curclient, "%s", msg);
249	xfree(msg);
250}
251
252void
253key_bindings_dispatch(struct key_binding *bd, struct client *c)
254{
255	struct cmd_ctx	 ctx;
256	struct cmd	*cmd;
257	int		 readonly;
258
259	ctx.msgdata = NULL;
260	ctx.curclient = c;
261
262	ctx.error = key_bindings_error;
263	ctx.print = key_bindings_print;
264	ctx.info = key_bindings_info;
265
266	ctx.cmdclient = NULL;
267
268	readonly = 1;
269	TAILQ_FOREACH(cmd, &bd->cmdlist->list, qentry) {
270		if (!(cmd->entry->flags & CMD_READONLY))
271			readonly = 0;
272	}
273	if (!readonly && c->flags & CLIENT_READONLY) {
274		key_bindings_info(&ctx, "Client is read-only");
275		return;
276	}
277
278	cmd_list_exec(bd->cmdlist, &ctx);
279}
280