xref: /minix3/external/bsd/tmux/dist/cmd-choose-buffer.c (revision 3956ee9eeda988648c3f2092c7d31faa0a0e7294)
1 /* $Id: cmd-choose-buffer.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */
2 
3 /*
4  * Copyright (c) 2010 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 
23 #include "tmux.h"
24 
25 /*
26  * Enter choice mode to choose a buffer.
27  */
28 
29 int	cmd_choose_buffer_exec(struct cmd *, struct cmd_ctx *);
30 
31 void	cmd_choose_buffer_callback(void *, int);
32 void	cmd_choose_buffer_free(void *);
33 
34 const struct cmd_entry cmd_choose_buffer_entry = {
35 	"choose-buffer", NULL,
36 	"t:", 0, 1,
37 	CMD_TARGET_WINDOW_USAGE " [template]",
38 	0,
39 	NULL,
40 	NULL,
41 	cmd_choose_buffer_exec
42 };
43 
44 struct cmd_choose_buffer_data {
45 	struct client   *client;
46 	char            *template;
47 };
48 
49 int
50 cmd_choose_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
51 {
52 	struct args			*args = self->args;
53 	struct cmd_choose_buffer_data	*cdata;
54 	struct winlink			*wl;
55 	struct paste_buffer		*pb;
56 	u_int				 idx;
57 	char				*tmp;
58 
59 	if (ctx->curclient == NULL) {
60 		ctx->error(ctx, "must be run interactively");
61 		return (-1);
62 	}
63 
64 	if ((wl = cmd_find_window(ctx, args_get(args, 't'), NULL)) == NULL)
65 		return (-1);
66 
67 	if (paste_get_top(&global_buffers) == NULL)
68 		return (0);
69 
70 	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
71 		return (0);
72 
73 	idx = 0;
74 	while ((pb = paste_walk_stack(&global_buffers, &idx)) != NULL) {
75 		tmp = paste_print(pb, 50);
76 		window_choose_add(wl->window->active, idx - 1,
77 		    "%u: %zu bytes: \"%s\"", idx - 1, pb->size, tmp);
78 		xfree(tmp);
79 	}
80 
81 	cdata = xmalloc(sizeof *cdata);
82 	if (args->argc != 0)
83 		cdata->template = xstrdup(args->argv[0]);
84 	else
85 		cdata->template = xstrdup("paste-buffer -b '%%'");
86 	cdata->client = ctx->curclient;
87 	cdata->client->references++;
88 
89 	window_choose_ready(wl->window->active,
90 	    0, cmd_choose_buffer_callback, cmd_choose_buffer_free, cdata);
91 
92 	return (0);
93 }
94 
95 void
96 cmd_choose_buffer_callback(void *data, int idx)
97 {
98 	struct cmd_choose_buffer_data	*cdata = data;
99 	struct cmd_list			*cmdlist;
100 	struct cmd_ctx			 ctx;
101 	char				*template, *cause, tmp[16];
102 
103 	if (idx == -1)
104 		return;
105 	if (cdata->client->flags & CLIENT_DEAD)
106 		return;
107 
108 	xsnprintf(tmp, sizeof tmp, "%u", idx);
109 	template = cmd_template_replace(cdata->template, tmp, 1);
110 
111 	if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
112 		if (cause != NULL) {
113 			*cause = toupper((u_char) *cause);
114 			status_message_set(cdata->client, "%s", cause);
115 			xfree(cause);
116 		}
117 		xfree(template);
118 		return;
119 	}
120 	xfree(template);
121 
122 	ctx.msgdata = NULL;
123 	ctx.curclient = cdata->client;
124 
125 	ctx.error = key_bindings_error;
126 	ctx.print = key_bindings_print;
127 	ctx.info = key_bindings_info;
128 
129 	ctx.cmdclient = NULL;
130 
131 	cmd_list_exec(cmdlist, &ctx);
132 	cmd_list_free(cmdlist);
133 }
134 
135 void
136 cmd_choose_buffer_free(void *data)
137 {
138 	struct cmd_choose_buffer_data	*cdata = data;
139 
140 	cdata->client->references--;
141 	xfree(cdata->template);
142 	xfree(cdata);
143 }
144