QueueSave: use class SongLoader

src/PlaylistState.cxx

@@ -103,7 +103,8 @@ playlist_state_save(FILE *fp, const struct playlist &playlist,
 }
 
 static void
-playlist_state_load(TextFile &file, struct playlist &playlist)
+playlist_state_load(TextFile &file, const SongLoader &song_loader,
+		    struct playlist &playlist)
 {
 	const char *line = file.ReadLine();
 	if (line == nullptr) {
@@ -112,7 +113,7 @@ playlist_state_load(TextFile &file, struct playlist &playlist)
 	}
 
 	while (!StringStartsWith(line, PLAYLIST_STATE_FILE_PLAYLIST_END)) {
-		queue_load_song(file, line, playlist.queue);
+		queue_load_song(file, song_loader, line, playlist.queue);
 
 		line = file.ReadLine();
 		if (line == nullptr) {
@@ -128,6 +129,7 @@ playlist_state_load(TextFile &file, struct playlist &playlist)
 
 bool
 playlist_state_restore(const char *line, TextFile &file,
+		       const SongLoader &song_loader,
 		       struct playlist &playlist, PlayerControl &pc)
 {
 	int current = -1;
@@ -183,7 +185,7 @@ playlist_state_restore(const char *line, TextFile &file,
 					  (PLAYLIST_STATE_FILE_CURRENT)]));
 		} else if (StringStartsWith(line,
 					    PLAYLIST_STATE_FILE_PLAYLIST_BEGIN)) {
-			playlist_state_load(file, playlist);
+			playlist_state_load(file, song_loader, playlist);
 		}
 	}
 

src/PlaylistState.hxx

@@ -30,6 +30,7 @@
 struct playlist;
 struct PlayerControl;
 class TextFile;
+class SongLoader;
 
 void
 playlist_state_save(FILE *fp, const playlist &playlist,
@@ -37,6 +38,7 @@ playlist_state_save(FILE *fp, const playlist &playlist,
 
 bool
 playlist_state_restore(const char *line, TextFile &file,
+		       const SongLoader &song_loader,
 		       playlist &playlist, PlayerControl &pc);
 
 /**

src/StateFile.cxx

@@ -24,7 +24,7 @@
 #include "fs/TextFile.hxx"
 #include "Partition.hxx"
 #include "mixer/Volume.hxx"
-
+#include "SongLoader.hxx"
 #include "fs/FileSystem.hxx"
 #include "util/Domain.hxx"
 #include "Log.hxx"
@@ -97,11 +97,14 @@ StateFile::Read()
 		return;
 	}
 
+	const SongLoader song_loader(nullptr);
+
 	const char *line;
 	while ((line = file.ReadLine()) != NULL) {
 		success = read_sw_volume_state(line, partition.outputs) ||
 			audio_output_state_read(line, partition.outputs) ||
-			playlist_state_restore(line, file, partition.playlist,
+			playlist_state_restore(line, file, song_loader,
+					       partition.playlist,
 					       partition.pc);
 		if (!success)
 			FormatError(state_file_domain,

src/queue/QueueSave.cxx

@@ -23,10 +23,10 @@
 #include "PlaylistError.hxx"
 #include "DetachedSong.hxx"
 #include "SongSave.hxx"
-#include "db/DatabaseSong.hxx"
+#include "SongLoader.hxx"
+#include "playlist/PlaylistSong.hxx"
 #include "fs/TextFile.hxx"
 #include "util/StringUtil.hxx"
-#include "util/UriUtil.hxx"
 #include "util/Error.hxx"
 #include "fs/Traits.hxx"
 #include "Log.hxx"
@@ -69,7 +69,8 @@ queue_save(FILE *fp, const Queue &queue)
 }
 
 void
-queue_load_song(TextFile &file, const char *line, Queue &queue)
+queue_load_song(TextFile &file, const SongLoader &loader,
+		const char *line, Queue &queue)
 {
 	if (queue.IsFull())
 		return;
@@ -87,8 +88,6 @@ queue_load_song(TextFile &file, const char *line, Queue &queue)
 
 	if (StringStartsWith(line, SONG_BEGIN)) {
 		const char *uri = line + sizeof(SONG_BEGIN) - 1;
-		if (!uri_has_scheme(uri) && !PathTraitsUTF8::IsAbsolute(uri))
-			return;
 
 		Error error;
 		song = song_load(file, uri, error);
@@ -107,15 +106,12 @@ queue_load_song(TextFile &file, const char *line, Queue &queue)
 
 		const char *uri = endptr + 1;
 
-		if (uri_has_scheme(uri)) {
 		song = new DetachedSong(uri);
-		} else {
-#ifdef ENABLE_DATABASE
-			song = DatabaseDetachSong(uri, IgnoreError());
-			if (song == nullptr)
-#endif
-				return;
 	}
+
+	if (!playlist_check_translate_song(*song, nullptr, loader)) {
+		delete song;
+		return;
 	}
 
 	queue.Append(std::move(*song), priority);

src/queue/QueueSave.hxx

@@ -29,6 +29,7 @@
 
 struct Queue;
 class TextFile;
+class SongLoader;
 
 void
 queue_save(FILE *fp, const Queue &queue);
@@ -37,6 +38,7 @@ queue_save(FILE *fp, const Queue &queue);
  * Loads one song from the state file and appends it to the queue.
  */
 void
-queue_load_song(TextFile &file, const char *line, Queue &queue);
+queue_load_song(TextFile &file, const SongLoader &loader,
+		const char *line, Queue &queue);
 
 #endif