1 /*
2 * (c) 2004 by Kalle Wallin <kaw@linux.se>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
19 #include "config.h"
20 #include "i18n.h"
21 #include "mpdclient.h"
22 #include "command.h"
23 #include "screen.h"
24 #include "screen_utils.h"
25 #include "gcc.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_("Keys - Movement") },
39 { 2, CMD_NONE, NULL },
40 { 0, CMD_LIST_PREVIOUS, NULL },
41 { 0, CMD_LIST_NEXT, NULL },
42 { 0, CMD_LIST_PREVIOUS_PAGE, NULL },
43 { 0, CMD_LIST_NEXT_PAGE, NULL },
44 { 0, CMD_LIST_FIRST, NULL },
45 { 0, CMD_LIST_LAST, NULL },
46 { 0, CMD_NONE, NULL },
47 { 0, CMD_SCREEN_PREVIOUS,NULL },
48 { 0, CMD_SCREEN_NEXT, NULL },
49 { 0, CMD_SCREEN_HELP, NULL },
50 { 0, CMD_SCREEN_PLAY, NULL },
51 { 0, CMD_SCREEN_FILE, NULL },
52 #ifdef ENABLE_SEARCH_SCREEN
53 { 0, CMD_SCREEN_SEARCH, NULL },
54 #endif
55 #ifdef ENABLE_KEYDEF_SCREEN
56 { 0, CMD_SCREEN_KEYDEF, NULL },
57 #endif
59 { 0, CMD_NONE, NULL },
60 { 0, CMD_NONE, NULL },
61 { 1, CMD_NONE, N_("Keys - Global") },
62 { 2, CMD_NONE, NULL },
63 { 0, CMD_STOP, NULL },
64 { 0, CMD_PAUSE, NULL },
65 { 0, CMD_CROP, NULL },
66 { 0, CMD_TRACK_NEXT, NULL },
67 { 0, CMD_TRACK_PREVIOUS, NULL },
68 { 0, CMD_SEEK_FORWARD, NULL },
69 { 0, CMD_SEEK_BACKWARD, NULL },
70 { 0, CMD_VOLUME_DOWN, NULL },
71 { 0, CMD_VOLUME_UP, NULL },
72 { 0, CMD_NONE, NULL },
73 { 0, CMD_REPEAT, NULL },
74 { 0, CMD_RANDOM, NULL },
75 { 0, CMD_CROSSFADE, NULL },
76 { 0, CMD_SHUFFLE, NULL },
77 { 0, CMD_DB_UPDATE, NULL },
78 { 0, CMD_NONE, NULL },
79 { 0, CMD_LIST_FIND, NULL },
80 { 0, CMD_LIST_RFIND, NULL },
81 { 0, CMD_LIST_FIND_NEXT, NULL },
82 { 0, CMD_LIST_RFIND_NEXT, NULL },
83 { 0, CMD_TOGGLE_FIND_WRAP, NULL },
84 { 0, CMD_LOCATE, NULL },
85 { 0, CMD_NONE, NULL },
86 { 0, CMD_QUIT, NULL },
88 { 0, CMD_NONE, NULL },
89 { 0, CMD_NONE, NULL },
90 { 1, CMD_NONE, N_("Keys - Playlist screen") },
91 { 2, CMD_NONE, NULL },
92 { 0, CMD_PLAY, N_("Play") },
93 { 0, CMD_DELETE, NULL },
94 { 0, CMD_CLEAR, NULL },
95 { 1, CMD_LIST_MOVE_UP, N_("Move song up") },
96 { 0, CMD_LIST_MOVE_DOWN, N_("Move song down") },
97 { 0, CMD_ADD, NULL },
98 { 0, CMD_SAVE_PLAYLIST, NULL },
99 { 0, CMD_SCREEN_UPDATE, N_("Center") },
100 { 0, CMD_TOGGLE_AUTOCENTER, NULL },
102 { 0, CMD_NONE, NULL },
103 { 0, CMD_NONE, NULL },
104 { 1, CMD_NONE, N_("Keys - Browse screen") },
105 { 2, CMD_NONE, NULL },
106 { 0, CMD_PLAY, N_("Enter directory/Select and play song") },
107 { 0, CMD_SELECT, NULL },
108 { 0, CMD_ADD, N_("Append song to playlist") },
109 { 0, CMD_SAVE_PLAYLIST, NULL },
110 { 0, CMD_DELETE, N_("Delete playlist") },
111 { 0, CMD_GO_PARENT_DIRECTORY, NULL },
112 { 0, CMD_GO_ROOT_DIRECTORY, NULL },
113 { 0, CMD_SCREEN_UPDATE, NULL },
115 #ifdef ENABLE_SEARCH_SCREEN
116 { 0, CMD_NONE, NULL },
117 { 0, CMD_NONE, NULL },
118 { 1, CMD_NONE, N_("Keys - Search screen") },
119 { 2, CMD_NONE, NULL },
120 { 0, CMD_SCREEN_SEARCH, N_("Search") },
121 { 0, CMD_PLAY, N_("Select and play") },
122 { 0, CMD_SELECT, NULL },
123 { 0, CMD_ADD, N_("Append song to playlist") },
124 { 0, CMD_SELECT_ALL, NULL },
125 { 0, CMD_SEARCH_MODE, NULL },
126 #endif
127 #ifdef ENABLE_LYRICS_SCREEN
128 { 0, CMD_NONE, NULL },
129 { 0, CMD_NONE, NULL },
130 { 1, CMD_NONE, N_("Keys - Lyrics screen") },
131 { 2, CMD_NONE, NULL },
132 { 0, CMD_SCREEN_LYRICS, N_("View Lyrics") },
133 { 0, CMD_SELECT, N_("(Re)load lyrics") },
134 { 0, CMD_INTERRUPT, N_("Interrupt retrieval") },
135 { 0, CMD_LYRICS_UPDATE, N_("Explicitly download lyrics") },
136 { 0, CMD_ADD, N_("Save lyrics") },
137 #endif
138 };
140 #define help_text_rows (sizeof(help_text) / sizeof(help_text[0]))
142 static list_window_t *lw;
144 static const char *
145 list_callback(unsigned idx, int *highlight, mpd_unused void *data)
146 {
147 static char buf[512];
149 if (idx >= help_text_rows)
150 return NULL;
152 if (help_text[idx].highlight)
153 *highlight = 1;
155 if (help_text[idx].command == CMD_NONE) {
156 if (help_text[idx].text)
157 g_snprintf(buf, sizeof(buf), " %s", _(help_text[idx].text));
158 else if (help_text[idx].highlight == 2) {
159 int i;
161 for (i = 3; i < COLS - 3 && i < (int)sizeof(buf); i++)
162 buf[i] = '-';
163 buf[i] = '\0';
164 } else
165 g_strlcpy(buf, " ", sizeof(buf));
166 return buf;
167 }
169 if (help_text[idx].text)
170 g_snprintf(buf, sizeof(buf),
171 "%20s : %s ",
172 get_key_names(help_text[idx].command, TRUE),
173 _(help_text[idx].text));
174 else
175 g_snprintf(buf, sizeof(buf),
176 "%20s : %s ",
177 get_key_names(help_text[idx].command, TRUE),
178 get_key_description(help_text[idx].command));
179 return buf;
180 }
182 static void
183 help_init(WINDOW *w, int cols, int rows)
184 {
185 lw = list_window_init(w, cols, rows);
186 lw->flags = LW_HIDE_CURSOR;
187 }
189 static void
190 help_resize(int cols, int rows)
191 {
192 lw->cols = cols;
193 lw->rows = rows;
194 }
196 static void
197 help_exit(void)
198 {
199 list_window_free(lw);
200 }
203 static const char *
204 help_title(mpd_unused char *str, mpd_unused size_t size)
205 {
206 return _("Help");
207 }
209 static void
210 help_paint(void)
211 {
212 list_window_paint(lw, list_callback, NULL);
213 }
215 static bool
216 help_cmd(mpd_unused mpdclient_t *c, command_t cmd)
217 {
218 if (list_window_scroll_cmd(lw, help_text_rows, cmd)) {
219 list_window_paint(lw, list_callback, NULL);
220 wrefresh(lw->w);
221 return true;
222 }
224 lw->selected = lw->start+lw->rows;
225 if (screen_find(lw, help_text_rows,
226 cmd, list_callback, NULL)) {
227 /* center the row */
228 list_window_center(lw, help_text_rows, lw->selected);
229 list_window_paint(lw, list_callback, NULL);
230 wrefresh(lw->w);
231 return true;
232 }
234 return false;
235 }
237 const struct screen_functions screen_help = {
238 .init = help_init,
239 .exit = help_exit,
240 .resize = help_resize,
241 .paint = help_paint,
242 .cmd = help_cmd,
243 .get_title = help_title,
244 };