1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "config.h"
21 #include "i18n.h"
22 #include "mpdclient.h"
23 #include "command.h"
24 #include "screen.h"
25 #include "screen_utils.h"
27 #include <stdlib.h>
28 #include <string.h>
29 #include <glib.h>
31 typedef struct {
32 signed char highlight;
33 command_t command;
34 const char *text;
35 } help_text_row_t;
37 static help_text_row_t help_text[] = {
38 { 1, CMD_NONE, N_("Movement") },
39 { 2, CMD_NONE, NULL },
40 { 0, CMD_LIST_PREVIOUS, NULL },
41 { 0, CMD_LIST_NEXT, NULL },
42 { 0, CMD_LIST_TOP, NULL },
43 { 0, CMD_LIST_MIDDLE, NULL },
44 { 0, CMD_LIST_BOTTOM, NULL },
45 { 0, CMD_LIST_PREVIOUS_PAGE, NULL },
46 { 0, CMD_LIST_NEXT_PAGE, NULL },
47 { 0, CMD_LIST_FIRST, NULL },
48 { 0, CMD_LIST_LAST, NULL },
49 { 0, CMD_LIST_VISUAL_SELECT, NULL },
50 { 0, CMD_NONE, NULL },
51 { 0, CMD_SCREEN_PREVIOUS,NULL },
52 { 0, CMD_SCREEN_NEXT, NULL },
53 { 0, CMD_SCREEN_HELP, NULL },
54 { 0, CMD_SCREEN_PLAY, NULL },
55 { 0, CMD_SCREEN_FILE, NULL },
56 #ifdef ENABLE_ARTIST_SCREEN
57 { 0, CMD_SCREEN_ARTIST, NULL },
58 #endif
59 #ifdef ENABLE_SEARCH_SCREEN
60 { 0, CMD_SCREEN_SEARCH, NULL },
61 #endif
62 #ifdef ENABLE_KEYDEF_SCREEN
63 { 0, CMD_SCREEN_KEYDEF, NULL },
64 #endif
66 { 0, CMD_NONE, NULL },
67 { 0, CMD_NONE, NULL },
68 { 1, CMD_NONE, N_("Global") },
69 { 2, CMD_NONE, NULL },
70 { 0, CMD_STOP, NULL },
71 { 0, CMD_PAUSE, NULL },
72 { 0, CMD_CROP, NULL },
73 { 0, CMD_TRACK_NEXT, NULL },
74 { 0, CMD_TRACK_PREVIOUS, NULL },
75 { 0, CMD_SEEK_FORWARD, NULL },
76 { 0, CMD_SEEK_BACKWARD, NULL },
77 { 0, CMD_VOLUME_DOWN, NULL },
78 { 0, CMD_VOLUME_UP, NULL },
79 { 0, CMD_NONE, NULL },
80 { 0, CMD_REPEAT, NULL },
81 { 0, CMD_RANDOM, NULL },
82 { 0, CMD_CROSSFADE, NULL },
83 { 0, CMD_SHUFFLE, NULL },
84 { 0, CMD_DB_UPDATE, NULL },
85 { 0, CMD_NONE, NULL },
86 { 0, CMD_LIST_FIND, NULL },
87 { 0, CMD_LIST_RFIND, NULL },
88 { 0, CMD_LIST_FIND_NEXT, NULL },
89 { 0, CMD_LIST_RFIND_NEXT, NULL },
90 { 0, CMD_LIST_JUMP, NULL },
91 { 0, CMD_TOGGLE_FIND_WRAP, NULL },
92 { 0, CMD_LOCATE, NULL },
93 { 0, CMD_VIEW, NULL },
94 { 0, CMD_NONE, NULL },
95 { 0, CMD_QUIT, NULL },
97 { 0, CMD_NONE, NULL },
98 { 0, CMD_NONE, NULL },
99 { 1, CMD_NONE, N_("Playlist screen") },
100 { 2, CMD_NONE, NULL },
101 { 0, CMD_PLAY, N_("Play") },
102 { 0, CMD_DELETE, NULL },
103 { 0, CMD_CLEAR, NULL },
104 { 0, CMD_LIST_MOVE_UP, N_("Move song up") },
105 { 0, CMD_LIST_MOVE_DOWN, N_("Move song down") },
106 { 0, CMD_ADD, NULL },
107 { 0, CMD_SAVE_PLAYLIST, NULL },
108 { 0, CMD_SCREEN_UPDATE, N_("Center") },
109 { 0, CMD_TOGGLE_AUTOCENTER, NULL },
111 { 0, CMD_NONE, NULL },
112 { 0, CMD_NONE, NULL },
113 { 1, CMD_NONE, N_("Browse screen") },
114 { 2, CMD_NONE, NULL },
115 { 0, CMD_PLAY, N_("Enter directory/Select and play song") },
116 { 0, CMD_SELECT, NULL },
117 { 0, CMD_ADD, N_("Append song to playlist") },
118 { 0, CMD_SAVE_PLAYLIST, NULL },
119 { 0, CMD_DELETE, N_("Delete playlist") },
120 { 0, CMD_GO_PARENT_DIRECTORY, NULL },
121 { 0, CMD_GO_ROOT_DIRECTORY, NULL },
122 { 0, CMD_SCREEN_UPDATE, NULL },
124 #ifdef ENABLE_SEARCH_SCREEN
125 { 0, CMD_NONE, NULL },
126 { 0, CMD_NONE, NULL },
127 { 1, CMD_NONE, N_("Search screen") },
128 { 2, CMD_NONE, NULL },
129 { 0, CMD_SCREEN_SEARCH, N_("Search") },
130 { 0, CMD_PLAY, N_("Select and play") },
131 { 0, CMD_SELECT, NULL },
132 { 0, CMD_ADD, N_("Append song to playlist") },
133 { 0, CMD_SELECT_ALL, NULL },
134 { 0, CMD_SEARCH_MODE, NULL },
135 #endif
136 #ifdef ENABLE_LYRICS_SCREEN
137 { 0, CMD_NONE, NULL },
138 { 0, CMD_NONE, NULL },
139 { 1, CMD_NONE, N_("Lyrics screen") },
140 { 2, CMD_NONE, NULL },
141 { 0, CMD_SCREEN_LYRICS, N_("View Lyrics") },
142 { 0, CMD_SELECT, N_("(Re)load lyrics") },
143 { 0, CMD_INTERRUPT, N_("Interrupt retrieval") },
144 { 0, CMD_LYRICS_UPDATE, N_("Explicitly download lyrics") },
145 { 0, CMD_ADD, N_("Save lyrics") },
146 #endif
147 #ifdef ENABLE_OUTPUTS_SCREEN
148 { 0, CMD_NONE, NULL },
149 { 0, CMD_NONE, NULL },
150 { 1, CMD_NONE, N_("Outputs screen") },
151 { 2, CMD_NONE, NULL },
152 { 0, CMD_PLAY, N_("Enable/disable output") },
153 #endif
154 };
156 #define help_text_rows (sizeof(help_text) / sizeof(help_text[0]))
158 static list_window_t *lw;
160 static const char *
161 list_callback(unsigned idx, bool *highlight, G_GNUC_UNUSED void *data)
162 {
163 static char buf[512];
165 if (idx >= help_text_rows)
166 return NULL;
168 if (help_text[idx].highlight)
169 *highlight = true;
171 if (help_text[idx].command == CMD_NONE) {
172 if (help_text[idx].text)
173 g_snprintf(buf, sizeof(buf), " %s", _(help_text[idx].text));
174 else if (help_text[idx].highlight == 2) {
175 int i;
177 for (i = 3; i < COLS - 3 && i < (int)sizeof(buf); i++)
178 buf[i] = '-';
179 buf[i] = '\0';
180 } else
181 g_strlcpy(buf, " ", sizeof(buf));
182 return buf;
183 }
185 if (help_text[idx].text)
186 g_snprintf(buf, sizeof(buf),
187 "%20s : %s ",
188 get_key_names(help_text[idx].command, TRUE),
189 _(help_text[idx].text));
190 else
191 g_snprintf(buf, sizeof(buf),
192 "%20s : %s ",
193 get_key_names(help_text[idx].command, TRUE),
194 get_key_description(help_text[idx].command));
195 return buf;
196 }
198 static void
199 help_init(WINDOW *w, int cols, int rows)
200 {
201 lw = list_window_init(w, cols, rows);
202 lw->hide_cursor = true;
203 }
205 static void
206 help_resize(int cols, int rows)
207 {
208 lw->cols = cols;
209 lw->rows = rows;
210 }
212 static void
213 help_exit(void)
214 {
215 list_window_free(lw);
216 }
219 static const char *
220 help_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
221 {
222 return _("Help");
223 }
225 static void
226 help_paint(void)
227 {
228 list_window_paint(lw, list_callback, NULL);
229 }
231 static bool
232 help_cmd(G_GNUC_UNUSED mpdclient_t *c, command_t cmd)
233 {
234 if (list_window_scroll_cmd(lw, help_text_rows, cmd)) {
235 list_window_paint(lw, list_callback, NULL);
236 wrefresh(lw->w);
237 return true;
238 }
240 lw->selected = lw->start+lw->rows;
241 if (screen_find(lw, help_text_rows,
242 cmd, list_callback, NULL)) {
243 /* center the row */
244 list_window_center(lw, help_text_rows, lw->selected);
245 list_window_paint(lw, list_callback, NULL);
246 wrefresh(lw->w);
247 return true;
248 }
250 return false;
251 }
253 const struct screen_functions screen_help = {
254 .init = help_init,
255 .exit = help_exit,
256 .resize = help_resize,
257 .paint = help_paint,
258 .cmd = help_cmd,
259 .get_title = help_title,
260 };