Code

screen_*: eliminate redundant wrefresh() calls
[ncmpc.git] / src / screen_lyrics.c
index c5876f30a921217d94980533edef33384ba311f2..b937e79bc3792ca16030d766178989d746faec9c 100644 (file)
@@ -1,8 +1,6 @@
-/* 
- * $Id: screen_lyrics.c 3355 2006-09-1 17:44:04Z tradiaz $
- *     
- * (c) 2006 by Kalle Wallin <kaw@linux.se>
- * Tue Aug  1 23:17:38 2006
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2017 The Music Player Daemon Project
+ * Project homepage: http://musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
+#include "screen_lyrics.h"
+#include "screen_interface.h"
+#include "screen_status.h"
+#include "screen_file.h"
+#include "screen_song.h"
+#include "i18n.h"
+#include "options.h"
+#include "mpdclient.h"
+#include "screen.h"
+#include "lyrics.h"
+#include "screen_text.h"
+#include "screen_utils.h"
+#include "ncu.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
-#include <ncurses.h>
-#include <expat.h>
 #include <unistd.h>
-#include <glib/gstdio.h>
 #include <stdio.h>
 
-#include "config.h"
-#ifndef DISABLE_LYRICS_SCREEN
-#include <sys/stat.h>
-#include "ncmpc.h"
-#include "options.h"
-#include "mpdclient.h"
-#include "command.h"
-#include "screen.h"
-#include "screen_utils.h"
-#include "easy_download.h"
-#include "strfsong.h"
-#include "src_lyrics.h"
+static struct screen_text text;
 
-int src_selection;
+static struct mpd_song *next_song;
+static bool follow = false;
+/** Set if the cursor position shall be kept during the next lyrics update. */
+static bool reloading = false;
 
-static void lyrics_paint(screen_t *screen, mpdclient_t *c);
+static struct {
+       struct mpd_song *song;
 
-FILE *create_lyr_file(char *artist, char *title)
+       char *artist, *title, *plugin_name;
+
+       struct plugin_cycle *loader;
+
+       guint loader_timeout;
+} current;
+
+static void
+screen_lyrics_abort(void)
+{
+       if (current.loader != NULL) {
+               plugin_stop(current.loader);
+               current.loader = NULL;
+       }
+
+       if (current.loader_timeout != 0) {
+               g_source_remove(current.loader_timeout);
+               current.loader_timeout = 0;
+       }
+
+       if (current.plugin_name != NULL) {
+               g_free(current.plugin_name);
+               current.plugin_name = NULL;
+       }
+
+       if (current.artist != NULL) {
+               g_free(current.artist);
+               current.artist = NULL;
+       }
+
+       if (current.title != NULL) {
+               g_free(current.title);
+               current.title = NULL;
+       }
+
+       if (current.song != NULL) {
+               mpd_song_free(current.song);
+               current.song = NULL;
+       }
+}
+
+/**
+ * Repaint and update the screen, if it is currently active.
+ */
+static void
+lyrics_repaint_if_active(void)
 {
-                char path[1024];
-
-                snprintf(path, 1024, "%s/.lyrics", 
-                        getenv("HOME"));
-                if(g_access(path, W_OK) != 0) if(mkdir(path, S_IRWXU) != 0) return NULL;
-        
-                snprintf(path, 1024, "%s/.lyrics/%s", 
-                                getenv("HOME"), artist);
-                if(g_access(path, W_OK) != 0) if(mkdir(path, S_IRWXU) != 0) return NULL;       
-        
-                snprintf(path, 1024, "%s/.lyrics/%s/%s.lyric", 
-                                getenv("HOME"), artist, title);
-
-            return fopen(path, "w");
-}      
-
-    
-int store_lyr_hd()
+       if (screen_is_visible(&screen_lyrics)) {
+               screen_text_repaint(&text);
+
+               /* XXX repaint the screen title */
+       }
+}
+
+static void
+path_lyr_file(char *path, size_t size,
+               const char *artist, const char *title)
 {
-        char artist[512];
-        char title[512];
-        static char path[1024];
-        FILE *lyr_file;
-        
-        get_text_line(&lyr_text, 0, artist, 512);
-        get_text_line(&lyr_text, 1, title, 512);
-        artist[strlen(artist)-1] = '\0';
-        title[strlen(title)-1] = '\0';
-        
-        snprintf(path, 1024, "%s/.lyrics/%s/%s.lyric", 
-                        getenv("HOME"), artist, title);
-        lyr_file = create_lyr_file(artist, title);
-        if(lyr_file == NULL) return -1;
-        int i;
-        char line_buf[1024];
-        
-        for(i = 3; i <= lyr_text.text->len; i++)
-        {
-                if(get_text_line(&lyr_text, i, line_buf, 1024) == -1);
-                fputs(line_buf, lyr_file);
-        }
-        fclose(lyr_file);
-        return 0;
+       snprintf(path, size, "%s/.lyrics/%s - %s.txt",
+                       getenv("HOME"), artist, title);
 }
-                                
-        
-void check_repaint()
+
+static bool
+exists_lyr_file(const char *artist, const char *title)
 {
-        if(screen_get_id("lyrics") == get_cur_mode_id())lyrics_paint(NULL, NULL);
+       char path[1024];
+       path_lyr_file(path, 1024, artist, title);
+
+       struct stat result;
+       return (stat(path, &result) == 0);
 }
 
+static FILE *
+create_lyr_file(const char *artist, const char *title)
+{
+       char path[1024];
+       snprintf(path, 1024, "%s/.lyrics",
+                getenv("HOME"));
+       mkdir(path, S_IRWXU);
 
-gpointer get_lyr(void *c)
+       path_lyr_file(path, 1024, artist, title);
+
+       return fopen(path, "w");
+}
+
+static int
+store_lyr_hd(void)
 {
-        mpd_Status *status = ((retrieval_spec*)c)->client->status;
-        mpd_Song *cur = ((retrieval_spec*)c)->client->song; 
-        //mpdclient_update((mpdclient_t*)c);
-        
-        if(!(IS_PAUSED(status->state)||IS_PLAYING(status->state)))
-        {
-                formed_text_init(&lyr_text);                   
-                return NULL;
-        }
-        
-
-        char artist[MAX_SONGNAME_LENGTH];
-        char title[MAX_SONGNAME_LENGTH];
-       lock=2;
-        result = 0;
-        
-        formed_text_init(&lyr_text);
-        
-        strfsong(artist, MAX_SONGNAME_LENGTH, "%artist%", cur);
-        strfsong(title, MAX_SONGNAME_LENGTH, "%title%", cur);
-        
-        //write header..
-        formed_text_init(&lyr_text);
-        add_text_line(&lyr_text, artist, 0);
-        add_text_line(&lyr_text, title, 0);
-        add_text_line(&lyr_text, "", 0);
-        add_text_line(&lyr_text, "", 0);
-        
-        if (((retrieval_spec*)c)->way != -1) /*till it'S of use*/
-        {
-                 if(get_lyr_by_src (src_selection, artist, title) != 0)
-                  {
-                   lock=0;
-                   return NULL;
-                  }
-        }
-        /*else{
-                if(get_lyr_hd(artist, title) != 0) 
-                {
-                if(get_lyr_hd(artist, title) != 0) return NULL;
-                }
-                else result |= 1;
-        }*/
-       //return NULL;
-        lw->start = 0;
-        check_repaint();
-        lock = 1;
-        return &lyr_text;
-}      
-
-static char *
-list_callback(int index, int *highlight, void *data)
+       FILE *lyr_file = create_lyr_file(current.artist, current.title);
+       if (lyr_file == NULL)
+               return -1;
+
+       for (unsigned i = 0; i < text.lines->len; ++i)
+               fprintf(lyr_file, "%s\n",
+                       (const char*)g_ptr_array_index(text.lines, i));
+
+       fclose(lyr_file);
+       return 0;
+}
+
+static int
+delete_lyr_hd(void)
 {
-        static char buf[512];
-        
-    //i think i'ts fine to write it into the 1st line...
-  if((index == lyr_text.lines->len && lyr_text.lines->len > 4)||
-          ((lyr_text.lines->len == 0 
-          ||lyr_text.lines->len == 4) && index == 0))
-  {
-    *highlight=3; 
-    src_lyr* selected =  g_array_index (src_lyr_stack, src_lyr*, src_selection);
-    if (selected != NULL) return selected->description;
-    return "";
-  }
-    
-  if(index < 2 && lyr_text.lines->len > 4) *highlight=3;
-  else if(index >=  lyr_text.lines->len ||
-        ( index < 4 && index != 0 && lyr_text.lines->len < 5))
-  {
-          return "";
-  }
-  get_text_line(&lyr_text, index, buf, 512);
-  return buf;
-} 
+       if (!exists_lyr_file(current.artist, current.title))
+               return -1;
 
+       char path[1024];
+       path_lyr_file(path, 1024, current.artist, current.title);
+       if (unlink(path) != 0)
+               return -2;
+
+       return 0;
+}
 
 static void
-lyrics_init(WINDOW *w, int cols, int rows)
+screen_lyrics_set(const GString *str)
 {
-  lw = list_window_init(w, cols, rows);
-  lw->flags = LW_HIDE_CURSOR;
-  //lyr_text.lines = g_array_new(FALSE, TRUE, 4);
-  formed_text_init(&lyr_text);
-  if (!g_thread_supported()) g_thread_init(NULL);
-  
+       if (reloading) {
+               unsigned saved_start = text.lw->start;
+
+               screen_text_set(&text, str->str);
+
+               /* restore the cursor and ensure that it's still valid */
+               text.lw->start = saved_start;
+               list_window_fetch_cursor(text.lw);
+       } else {
+               screen_text_set(&text, str->str);
+       }
+
+       reloading = false;
+
+       /* paint new data */
+
+       lyrics_repaint_if_active();
 }
 
 static void
-lyrics_resize(int cols, int rows)
+screen_lyrics_callback(const GString *result, const bool success,
+                      const char *plugin_name, gcc_unused void *data)
 {
-  lw->cols = cols;
-  lw->rows = rows;
+       assert(current.loader != NULL);
+
+       current.plugin_name = g_strdup(plugin_name);
+
+       /* Display result, which may be lyrics or error messages */
+       if (result != NULL)
+               screen_lyrics_set(result);
+
+       if (success == true) {
+               if (options.lyrics_autosave &&
+                   !exists_lyr_file(current.artist, current.title))
+                       store_lyr_hd();
+       } else {
+               /* translators: no lyrics were found for the song */
+               screen_status_message (_("No lyrics"));
+       }
+
+       if (current.loader_timeout != 0) {
+               g_source_remove(current.loader_timeout);
+               current.loader_timeout = 0;
+       }
+
+       plugin_stop(current.loader);
+       current.loader = NULL;
+}
+
+static gboolean
+screen_lyrics_timeout_callback(gpointer gcc_unused data)
+{
+       plugin_stop(current.loader);
+       current.loader = NULL;
+
+       screen_status_printf(_("Lyrics timeout occurred after %d seconds"),
+                            options.lyrics_timeout);
+
+       current.loader_timeout = 0;
+       return FALSE;
 }
 
 static void
-lyrics_exit(void)
+screen_lyrics_load(const struct mpd_song *song)
 {
-  list_window_free(lw);
+       assert(song != NULL);
+
+       screen_lyrics_abort();
+       screen_text_clear(&text);
+
+       const char *artist = mpd_song_get_tag(song, MPD_TAG_ARTIST, 0);
+       const char *title = mpd_song_get_tag(song, MPD_TAG_TITLE, 0);
+
+       current.song = mpd_song_dup(song);
+       current.artist = g_strdup(artist);
+       current.title = g_strdup(title);
+
+       current.loader = lyrics_load(current.artist, current.title,
+                                    screen_lyrics_callback, NULL);
+
+       if (options.lyrics_timeout != 0) {
+               current.loader_timeout =
+                       g_timeout_add_seconds(options.lyrics_timeout,
+                                             screen_lyrics_timeout_callback,
+                                             NULL);
+       }
 }
 
+static void
+screen_lyrics_reload(void)
+{
+       if (current.loader == NULL && current.artist != NULL &&
+           current.title != NULL) {
+               reloading = true;
+               current.loader = lyrics_load(current.artist, current.title,
+                                            screen_lyrics_callback, NULL);
+               screen_text_repaint(&text);
+       }
+}
 
-static char *
-lyrics_title(char *str, size_t size)
+static void
+lyrics_screen_init(WINDOW *w, int cols, int rows)
+{
+       screen_text_init(&text, w, cols, rows);
+}
+
+static void
+lyrics_resize(int cols, int rows)
 {
-  static GString *msg;
-  if (msg == NULL)
-    msg = g_string_new ("");
-  else g_string_erase (msg, 0, -1);
-
-  g_string_append (msg, "Lyrics  [");
-
-  if (src_selection > src_lyr_stack->len-1)
-    g_string_append (msg, "No plugin available");
-  else
-    {
-      src_lyr* selected =  g_array_index (src_lyr_stack, src_lyr*, src_selection);
-      if (selected != NULL)
-         g_string_append (msg, selected->name);
-      else g_string_append (msg, "NONE");
-    }
-  if(lyr_text.lines->len == 4)
-       {
-                if(lock == 1)
-                {
-                        if(!(result & 1))
-                        {
-                               g_string_append (msg, " - ");
-                                if(!(result & 2)) g_string_append (msg, _("No access"));
-                               else if(!(result & 4)||!(result & 16)) g_string_append (msg, _("Not found")); 
-                        }
-                }
-                if(lock == 2) 
-                 {
-                   g_string_append (msg, " - ");
-                   g_string_append (msg, _("retrieving"));
-                 }
-        }
-
-       g_string_append_c (msg, ']');
-
-       return msg->str;
+       screen_text_resize(&text, cols, rows);
 }
 
-static void 
-lyrics_paint(screen_t *screen, mpdclient_t *c)
+static void
+lyrics_exit(void)
 {
-  lw->clear = 1;
-  list_window_paint(lw, list_callback, NULL);
-  wrefresh(lw->w);
+       screen_lyrics_abort();
+
+       screen_text_deinit(&text);
 }
 
+static void
+lyrics_open(struct mpdclient *c)
+{
+       const struct mpd_song *next_song_c =
+               next_song != NULL ? next_song : c->song;
+
+       if (next_song_c != NULL &&
+           (current.song == NULL ||
+            strcmp(mpd_song_get_uri(next_song_c),
+                   mpd_song_get_uri(current.song)) != 0))
+               screen_lyrics_load(next_song_c);
+
+       if (next_song != NULL) {
+               mpd_song_free(next_song);
+               next_song = NULL;
+       }
+}
 
-static void 
-lyrics_update(screen_t *screen, mpdclient_t *c)
-{  
-  if( lw->repaint )
-    {
-      list_window_paint(lw, list_callback, NULL);
-      wrefresh(lw->w);
-      lw->repaint = 0;
-    }
+static void
+lyrics_update(struct mpdclient *c)
+{
+       if (!follow)
+               return;
+
+       if (c->song != NULL &&
+           (current.song == NULL ||
+            strcmp(mpd_song_get_uri(c->song),
+                   mpd_song_get_uri(current.song)) != 0))
+               screen_lyrics_load(c->song);
 }
 
+static const char *
+lyrics_title(char *str, size_t size)
+{
+       if (current.loader != NULL) {
+               snprintf(str, size, "%s (%s)",
+                        _("Lyrics"),
+                        /* translators: this message is displayed
+                           while data is retrieved */
+                        _("loading..."));
+               return str;
+       } else if (current.artist != NULL && current.title != NULL &&
+                  !screen_text_is_empty(&text)) {
+               int n;
+               n = snprintf(str, size, "%s: %s - %s",
+                            _("Lyrics"),
+                            current.artist, current.title);
+
+               if (options.lyrics_show_plugin && current.plugin_name != NULL &&
+                   (unsigned int) n < size - 1)
+                       snprintf(str + n, size - n, " (%s)",
+                                current.plugin_name);
+
+               return str;
+       } else
+               return _("Lyrics");
+}
 
-static int 
-lyrics_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
+static void
+lyrics_paint(void)
 {
-  lw->repaint=1;
-  static retrieval_spec spec;
-  switch(cmd)
-    {
-    case CMD_LIST_NEXT:
-      if( lw->start+lw->rows < lyr_text.lines->len+1 )
-        lw->start++;
-      return 1;
-    case CMD_LIST_PREVIOUS:
-      if( lw->start >0 )
-        lw->start--;
-      return 1;
-    case CMD_LIST_FIRST:
-      lw->start = 0;
-      return 1;
-    case CMD_LIST_LAST:
-      lw->start = lyrics_text_rows-lw->rows;
-      if( lw->start<0 )
-        lw->start = 0;
-      return 1;
-    case CMD_LIST_NEXT_PAGE:
-      lw->start = lw->start + lw->rows-1;
-      if( lw->start+lw->rows >= lyr_text.lines->len+1 )
-        lw->start = lyr_text.lines->len-lw->rows+1;
-      if( lw->start<0 )
-        lw->start = 0;
-       return 1;
-    case CMD_LIST_PREVIOUS_PAGE:
-      lw->start = lw->start - lw->rows;
-      if( lw->start<0 )
-        lw->start = 0;
-      return 1;
-        case CMD_SELECT:
-          spec.client = c;
-          spec.way = 0;
-          g_thread_create(get_lyr, &spec, FALSE, NULL);        
-          return 1;
-        case CMD_INTERRUPT:
-          if(lock > 1) lock = 4;
-          return 1;    
-        case CMD_ADD:
-          if(lock > 0 && lock != 4)
-          {
-                   if(store_lyr_hd() == 0) screen_status_message (_("Lyrics saved!"));
-          }
-          return 1;
-        case CMD_LYRICS_UPDATE:
-          spec.client = c;
-          spec.way = 1;
-          g_thread_create(get_lyr, &spec, FALSE, NULL);
-         return 1;
-       case CMD_SEARCH_MODE:
-         //while (0==0) fprintf (stderr, "%i", src_lyr_stack->len);
-         if (src_selection == src_lyr_stack->len-1) src_selection = -1;
-         src_selection++;
-         return 1;
-       default:
-         break;
-    }
-
-  lw->selected = lw->start+lw->rows;
-  if( screen_find(screen, c, 
-                  lw,  lyrics_text_rows,
-                  cmd, list_callback, NULL) )
-    {
-      /* center the row */
-      lw->start = lw->selected-(lw->rows/2);
-      if( lw->start+lw->rows > lyrics_text_rows )
-        lw->start = lyrics_text_rows-lw->rows;
-      if( lw->start<0 )
-        lw->start=0;
-      return 1;
-    }
-
-  return 0;
+       screen_text_paint(&text);
+}
+
+/* save current lyrics to a file and run editor on it */
+static void
+lyrics_edit(void)
+{
+       char *editor = options.text_editor;
+       if (editor == NULL) {
+               screen_status_message(_("Editor not configured"));
+               return;
+       }
+
+       if (options.text_editor_ask) {
+               char *buf = g_strdup_printf(
+                   _("Do you really want to start an editor and edit these lyrics [%s/%s]? "),
+                                           YES, NO);
+               bool really = screen_get_yesno(buf, false);
+               g_free(buf);
+               if (!really) {
+                       screen_status_message(_("Aborted"));
+                       return;
+               }
+       }
+
+       if (store_lyr_hd() < 0)
+               return;
+
+       ncu_deinit();
+
+       /* TODO: fork/exec/wait won't work on Windows, but building a command
+          string for system() is too tricky */
+       int status;
+       pid_t pid = fork();
+       if (pid == -1) {
+               screen_status_printf(("%s (%s)"), _("Can't start editor"), g_strerror(errno));
+               ncu_init();
+               return;
+       } else if (pid == 0) {
+               char path[1024];
+               path_lyr_file(path, sizeof(path), current.artist, current.title);
+               execlp(editor, editor, path, NULL);
+               /* exec failed, do what system does */
+               _exit(127);
+       } else {
+               int ret;
+               do {
+                       ret = waitpid(pid, &status, 0);
+               } while (ret == -1 && errno == EINTR);
+       }
+
+       ncu_init();
+
+       /* TODO: hardly portable */
+       if (WIFEXITED(status)) {
+               if (WEXITSTATUS(status) == 0)
+                       /* update to get the changes */
+                       screen_lyrics_reload();
+               else if (WEXITSTATUS(status) == 127)
+                       screen_status_message(_("Can't start editor"));
+               else
+                       screen_status_printf(_("Editor exited unexpectedly (%d)"),
+                                            WEXITSTATUS(status));
+       } else if (WIFSIGNALED(status)) {
+               screen_status_printf(_("Editor exited unexpectedly (signal %d)"),
+                                    WTERMSIG(status));
+       }
 }
 
-static list_window_t *
-lyrics_lw(void)
+static bool
+lyrics_cmd(struct mpdclient *c, command_t cmd)
 {
-  return lw;
+       if (screen_text_cmd(&text, c, cmd))
+               return true;
+
+       switch(cmd) {
+       case CMD_INTERRUPT:
+               if (current.loader != NULL) {
+                       screen_lyrics_abort();
+                       screen_text_clear(&text);
+               }
+               return true;
+       case CMD_SAVE_PLAYLIST:
+               if (current.loader == NULL && current.artist != NULL &&
+                   current.title != NULL && store_lyr_hd() == 0)
+                       /* lyrics for the song were saved on hard disk */
+                       screen_status_message (_("Lyrics saved"));
+               return true;
+       case CMD_DELETE:
+               if (current.loader == NULL && current.artist != NULL &&
+                   current.title != NULL) {
+                       switch (delete_lyr_hd()) {
+                       case 0:
+                               screen_status_message (_("Lyrics deleted"));
+                               break;
+                       case -1:
+                               screen_status_message (_("No saved lyrics"));
+                               break;
+                       }
+               }
+               return true;
+       case CMD_LYRICS_UPDATE:
+               if (c->song != NULL) {
+                       screen_lyrics_load(c->song);
+                       screen_text_paint(&text);
+               }
+               return true;
+       case CMD_EDIT:
+               lyrics_edit();
+               return true;
+       case CMD_SELECT:
+               screen_lyrics_reload();
+               return true;
+
+#ifdef ENABLE_SONG_SCREEN
+       case CMD_SCREEN_SONG:
+               if (current.song != NULL) {
+                       screen_song_switch(c, current.song);
+                       return true;
+               }
+
+               break;
+#endif
+       case CMD_SCREEN_SWAP:
+               screen_swap(c, current.song);
+               return true;
+
+       case CMD_LOCATE:
+               if (current.song != NULL) {
+                       screen_file_goto_song(c, current.song);
+                       return true;
+               }
+
+               return false;
+
+       default:
+               break;
+       }
+
+       return false;
 }
 
-screen_functions_t *
-get_screen_lyrics(void)
+const struct screen_functions screen_lyrics = {
+       .init = lyrics_screen_init,
+       .exit = lyrics_exit,
+       .open = lyrics_open,
+       .update = lyrics_update,
+       .close = NULL,
+       .resize = lyrics_resize,
+       .paint = lyrics_paint,
+       .cmd = lyrics_cmd,
+       .get_title = lyrics_title,
+};
+
+void
+screen_lyrics_switch(struct mpdclient *c, const struct mpd_song *song, bool f)
 {
-  static screen_functions_t functions;
-
-  memset(&functions, 0, sizeof(screen_functions_t));
-  functions.init   = lyrics_init;
-  functions.exit   = lyrics_exit;
-  functions.open   = NULL;
-  functions.close  = NULL;
-  functions.resize = lyrics_resize;
-  functions.paint  = lyrics_paint;
-  functions.update = lyrics_update;
-  functions.cmd    = lyrics_cmd;
-  functions.get_lw = lyrics_lw;
-  functions.get_title = lyrics_title;
-
-  return &functions;
+       assert(song != NULL);
+
+       follow = f;
+       next_song = mpd_song_dup(song);
+       screen_switch(&screen_lyrics, c);
 }
-#endif /* ENABLE_LYRICS_SCREEN */