Code

screen swap works with song/lyrics screens
[ncmpc.git] / src / screen_lyrics.c
index e6e2cf0dff9598285e5887fea091407e77b9a020..221b7cdb4ce87f69425158f2ffd3ef51d5e7f0cb 100644 (file)
@@ -1,61 +1,55 @@
-/*
- * (c) 2006 by Kalle Wallin <kaw@linux.se>
- * Copyright (C) 2008 Max Kellermann <max@duempel.org>
- *
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2009 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
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- *
+
  * This program is distributed in the hope that it will be useful,
  * 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
- *
- */
 
-#include "config.h"
-#ifndef DISABLE_LYRICS_SCREEN
+ * 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.
+*/
+
 #include <sys/stat.h>
-#include "ncmpc.h"
+#include "i18n.h"
 #include "options.h"
 #include "mpdclient.h"
 #include "command.h"
 #include "screen.h"
-#include "screen_utils.h"
 #include "strfsong.h"
 #include "lyrics.h"
-#include "gcc.h"
+#include "screen_text.h"
 
-#define _GNU_SOURCE
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <stdio.h>
 
-static list_window_t *lw = NULL;
-static int lyrics_text_rows = -1;
+static struct screen_text text;
+
+static const struct mpd_song *next_song;
 
 static struct {
-       const struct mpd_song *song;
+       struct mpd_song *song;
 
        char *artist, *title;
 
-       struct lyrics_loader *loader;
-
-       GPtrArray *lines;
+       struct plugin_cycle *loader;
 } current;
 
 static void
 screen_lyrics_abort(void)
 {
        if (current.loader != NULL) {
-               lyrics_free(current.loader);
+               plugin_stop(current.loader);
                current.loader = NULL;
        }
 
@@ -69,99 +63,61 @@ screen_lyrics_abort(void)
                current.artist = NULL;
        }
 
-       current.song = NULL;
+       if (current.song != NULL) {
+               mpd_freeSong(current.song);
+               current.song = NULL;
+       }
 }
 
+/**
+ * Repaint and update the screen, if it is currently active.
+ */
 static void
-screen_lyrics_clear(void)
+lyrics_repaint_if_active(void)
 {
-       guint i;
-
-       assert(current.loader == NULL ||
-              lyrics_result(current.loader) == LYRICS_SUCCESS);
-
-       current.song = NULL;
+       if (screen_is_visible(&screen_lyrics)) {
+               screen_text_repaint(&text);
 
-       for (i = 0; i < current.lines->len; ++i)
-               g_free(g_ptr_array_index(current.lines, i));
-
-       g_ptr_array_set_size(current.lines, 0);
+               /* XXX repaint the screen title */
+       }
 }
 
 static void
 screen_lyrics_set(const GString *str)
 {
-       const char *p, *eol, *next;
-
-       screen_lyrics_clear();
-
-       p = str->str;
-       while ((eol = strchr(p, '\n')) != NULL) {
-               char *line;
-
-               next = eol + 1;
-
-               /* strip whitespace at end */
-
-               while (eol > p && (unsigned char)eol[-1] <= 0x20)
-                       --eol;
-
-               /* create copy and append it to current.lines*/
+       screen_text_set(&text, str);
 
-               line = g_malloc(eol - p + 1);
-               memcpy(line, p, eol - p);
-               line[eol - p] = 0;
+       /* paint new data */
 
-               g_ptr_array_add(current.lines, line);
-
-               /* reset control characters */
-
-               for (eol = line + (eol - p); line < eol; ++line)
-                       if ((unsigned char)*line < 0x20)
-                               *line = ' ';
-
-               p = next;
-       }
-
-       if (*p != 0)
-               g_ptr_array_add(current.lines, g_strdup(p));
+       lyrics_repaint_if_active();
 }
 
-static int
-screen_lyrics_poll(void)
+static void
+screen_lyrics_callback(const GString *result, G_GNUC_UNUSED void *data)
 {
        assert(current.loader != NULL);
 
-       switch (lyrics_result(current.loader)) {
-       case LYRICS_BUSY:
-               return 0;
-
-       case LYRICS_SUCCESS:
-               screen_lyrics_set(lyrics_get(current.loader));
-               lyrics_free(current.loader);
-               current.loader = NULL;
-               return 1;
-
-       case LYRICS_FAILED:
-               lyrics_free(current.loader);
-               current.loader = NULL;
+       if (result != NULL)
+               screen_lyrics_set(result);
+       else
+               /* translators: no lyrics were found for the song */
                screen_status_message (_("No lyrics"));
-               return -1;
-       }
 
-       assert(0);
-       return -1;
+       plugin_stop(current.loader);
+       current.loader = NULL;
 }
 
 static void
-screen_lyrics_load(struct mpd_song *song)
+screen_lyrics_load(const struct mpd_song *song)
 {
        char buffer[MAX_SONGNAME_LENGTH];
 
        assert(song != NULL);
 
        screen_lyrics_abort();
-       screen_lyrics_clear();
+       screen_text_clear(&text);
+
+       current.song = mpd_songDup(song);
 
        strfsong(buffer, sizeof(buffer), "%artist%", song);
        current.artist = g_strdup(buffer);
@@ -169,11 +125,10 @@ screen_lyrics_load(struct mpd_song *song)
        strfsong(buffer, sizeof(buffer), "%title%", song);
        current.title = g_strdup(buffer);
 
-       current.loader = lyrics_load(current.artist, current.title);
+       current.loader = lyrics_load(current.artist, current.title,
+                                    screen_lyrics_callback, NULL);
 }
 
-static void lyrics_paint(screen_t *screen, mpdclient_t *c);
-
 static FILE *create_lyr_file(const char *artist, const char *title)
 {
        char path[1024];
@@ -197,177 +152,127 @@ static int store_lyr_hd(void)
        if (lyr_file == NULL)
                return -1;
 
-       for (i = 0; i < current.lines->len; ++i)
+       for (i = 0; i < text.lines->len; ++i)
                fprintf(lyr_file, "%s\n",
-                       (const char*)g_ptr_array_index(current.lines, i));
+                       (const char*)g_ptr_array_index(text.lines, i));
 
        fclose(lyr_file);
        return 0;
 }
 
-static const char *
-list_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
-{
-       if (current.lines == NULL || idx >= current.lines->len)
-               return "";
-
-       return g_ptr_array_index(current.lines, idx);
-}
-
-
 static void
 lyrics_screen_init(WINDOW *w, int cols, int rows)
 {
-       current.lines = g_ptr_array_new();
-       lw = list_window_init(w, cols, rows);
-       lw->flags = LW_HIDE_CURSOR;
+       screen_text_init(&text, w, cols, rows);
 }
 
 static void
 lyrics_resize(int cols, int rows)
 {
-       lw->cols = cols;
-       lw->rows = rows;
+       screen_text_resize(&text, cols, rows);
 }
 
 static void
 lyrics_exit(void)
 {
-       list_window_free(lw);
-
        screen_lyrics_abort();
-       screen_lyrics_clear();
 
-       g_ptr_array_free(current.lines, TRUE);
-       current.lines = NULL;
+       screen_text_deinit(&text);
 }
 
 static void
-lyrics_open(mpd_unused screen_t *screen, mpdclient_t *c)
+lyrics_open(mpdclient_t *c)
 {
-       if (c->song != NULL && c->song != current.song)
-               screen_lyrics_load(c->song);
-       else if (current.loader != NULL)
-               screen_lyrics_poll();
+       if (next_song == NULL)
+               next_song = c->song;
+
+       if (next_song != NULL &&
+           (current.song == NULL ||
+            strcmp(next_song->file, current.song->file) != 0))
+               screen_lyrics_load(next_song);
+
+       next_song = NULL;
 }
 
 
 static const char *
 lyrics_title(char *str, size_t size)
 {
-       if (current.loader != NULL)
-               return "Lyrics (loading)";
-       else if (current.artist != NULL && current.title != NULL &&
-                current.lines->len > 0) {
-               snprintf(str, size, "Lyrics: %s - %s",
+       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)) {
+               snprintf(str, size, "%s: %s - %s",
+                        _("Lyrics"),
                         current.artist, current.title);
                return str;
        } else
-               return "Lyrics";
+               return _("Lyrics");
 }
 
 static void
-lyrics_paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
+lyrics_paint(void)
 {
-       lw->clear = 1;
-       list_window_paint(lw, list_callback, NULL);
-       wrefresh(lw->w);
+       screen_text_paint(&text);
 }
 
-
-static void
-lyrics_update(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
+static bool
+lyrics_cmd(mpdclient_t *c, command_t cmd)
 {
-       if( lw->repaint ) {
-               list_window_paint(lw, list_callback, NULL);
-               wrefresh(lw->w);
-               lw->repaint = 0;
-       }
-}
+       if (screen_text_cmd(&text, c, cmd))
+               return true;
 
-
-static int
-lyrics_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
-{
-       lw->repaint=1;
        switch(cmd) {
-       case CMD_LIST_NEXT:
-               if (current.lines != NULL && lw->start+lw->rows < current.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:
-               if ((unsigned)lyrics_text_rows > lw->rows)
-                       lw->start = lyrics_text_rows - lw->rows;
-               else
-                       lw->start = 0;
-               return 1;
-       case CMD_LIST_NEXT_PAGE:
-               lw->start = lw->start + lw->rows - 1;
-               if (lw->start + lw->rows >= (unsigned)lyrics_text_rows + 1) {
-                       if ((unsigned)lyrics_text_rows + 1 > lw->rows)
-                               lw->start = lyrics_text_rows + 1 - lw->rows;
-                       else
-                               lw->start = 0;
-               }
-               return 1;
-       case CMD_LIST_PREVIOUS_PAGE:
-               if (lw->start > lw->rows)
-                       lw->start -= lw->rows;
-               else
-                       lw->start = 0;
-               return 1;
-       case CMD_SELECT:
-               /* XXX */
-               if (current.loader != NULL) {
-                       int ret = screen_lyrics_poll();
-                       if (ret != 0)
-                               lyrics_paint(NULL, NULL);
-               }
-               return 1;
        case CMD_INTERRUPT:
                if (current.loader != NULL) {
                        screen_lyrics_abort();
-                       screen_lyrics_clear();
+                       screen_text_clear(&text);
                }
-               return 1;
-       case CMD_ADD:
+               return true;
+       case CMD_SAVE_PLAYLIST:
                if (current.loader == NULL && current.artist != NULL &&
                    current.title != NULL && store_lyr_hd() == 0)
-                       screen_status_message (_("Lyrics saved!"));
-               return 1;
+                       /* lyrics for the song were saved on hard disk */
+                       screen_status_message (_("Lyrics saved"));
+               return true;
        case CMD_LYRICS_UPDATE:
                if (c->song != NULL) {
                        screen_lyrics_load(c->song);
-                       lyrics_paint(NULL, NULL);
+                       screen_text_repaint(&text);
                }
-               return 1;
-       default:
-               break;
-       }
+               return true;
 
-       lw->selected = lw->start+lw->rows;
-       if (screen_find(screen,
-                       lw,  lyrics_text_rows,
-                       cmd, list_callback, NULL)) {
-               /* center the row */
-               lw->start = lw->selected - (lw->rows / 2);
-               if (lw->start + lw->rows > (unsigned)lyrics_text_rows) {
-                       if (lw->rows < (unsigned)lyrics_text_rows)
-                               lw->start = lyrics_text_rows - lw->rows;
-                       else
-                               lw->start = 0;
+#ifdef ENABLE_SONG_SCREEN
+       case CMD_SCREEN_SONG:
+               if (current.song != NULL) {
+                       screen_song_switch(c, current.song);
+                       return true;
                }
-               return 1;
+
+               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 0;
+       return false;
 }
 
 const struct screen_functions screen_lyrics = {
@@ -377,9 +282,15 @@ const struct screen_functions screen_lyrics = {
        .close = NULL,
        .resize = lyrics_resize,
        .paint = lyrics_paint,
-       .update = lyrics_update,
        .cmd = lyrics_cmd,
        .get_title = lyrics_title,
 };
 
-#endif /* ENABLE_LYRICS_SCREEN */
+void
+screen_lyrics_switch(struct mpdclient *c, const struct mpd_song *song)
+{
+       assert(song != NULL);
+
+       next_song = song;
+       screen_switch(&screen_lyrics, c);
+}