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player/Control: use class Error as C++ exception, throw it

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This commit is contained in:
Max Kellermann
2016-09-08 10:29:49 +02:00
parent 3da4648112
commit 6e52ab285a
9 changed files with 150 additions and 141 deletions
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71
src/queue/PlaylistControl.cxx
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@@ -56,8 +56,8 @@ playlist::Stop(PlayerControl &pc)
}
}
bool
playlist::PlayPosition(PlayerControl &pc, int song, Error &error)
void
playlist::PlayPosition(PlayerControl &pc, int song)
{
pc.LockClearError();
@@ -66,13 +66,13 @@ playlist::PlayPosition(PlayerControl &pc, int song, Error &error)
/* play any song ("current" song, or the first song */
if (queue.IsEmpty())
return true;
return;
if (playing) {
/* already playing: unpause playback, just in
case it was paused, and return */
pc.LockSetPause(false);
return true;
return;
}
/* select a song: "current" song, or the first one */
@@ -102,24 +102,26 @@ playlist::PlayPosition(PlayerControl &pc, int song, Error &error)
stop_on_error = false;
error_count = 0;
return PlayOrder(pc, i, error);
PlayOrder(pc, i);
}
bool
playlist::PlayId(PlayerControl &pc, int id, Error &error)
void
playlist::PlayId(PlayerControl &pc, int id)
{
if (id == -1)
return PlayPosition(pc, id, error);
if (id == -1) {
PlayPosition(pc, id);
return;
}
int song = queue.IdToPosition(id);
if (song < 0)
throw PlaylistError::NoSuchSong();
return PlayPosition(pc, song, error);
PlayPosition(pc, song);
}
bool
playlist::PlayNext(PlayerControl &pc, Error &error)
void
playlist::PlayNext(PlayerControl &pc)
{
if (!playing)
throw PlaylistError::NotPlaying();
@@ -156,19 +158,16 @@ playlist::PlayNext(PlayerControl &pc, Error &error)
discard them anyway */
}
if (!PlayOrder(pc, next_order, error))
return false;
PlayOrder(pc, next_order);
}
/* Consume mode removes each played songs. */
if (queue.consume)
DeleteOrder(pc, old_current);
return true;
}
bool
playlist::PlayPrevious(PlayerControl &pc, Error &error)
void
playlist::PlayPrevious(PlayerControl &pc)
{
if (!playing)
throw PlaylistError::NotPlaying();
@@ -188,12 +187,11 @@ playlist::PlayPrevious(PlayerControl &pc, Error &error)
order = current;
}
return PlayOrder(pc, order, error);
PlayOrder(pc, order);
}
bool
playlist::SeekSongOrder(PlayerControl &pc, unsigned i, SongTime seek_time,
Error &error)
void
playlist::SeekSongOrder(PlayerControl &pc, unsigned i, SongTime seek_time)
{
assert(queue.IsValidOrder(i));
@@ -215,20 +213,19 @@ playlist::SeekSongOrder(PlayerControl &pc, unsigned i, SongTime seek_time,
queued = -1;
if (!pc.LockSeek(new DetachedSong(queue.GetOrder(i)), seek_time, error)) {
try {
pc.LockSeek(new DetachedSong(queue.GetOrder(i)), seek_time);
} catch (...) {
UpdateQueuedSong(pc, queued_song);
return false;
throw;
}
UpdateQueuedSong(pc, nullptr);
return true;
}
bool
void
playlist::SeekSongPosition(PlayerControl &pc, unsigned song,
SongTime seek_time,
Error &error)
SongTime seek_time)
{
if (!queue.IsValidPosition(song))
throw PlaylistError::BadRange();
@@ -237,24 +234,22 @@ playlist::SeekSongPosition(PlayerControl &pc, unsigned song,
? queue.PositionToOrder(song)
: song;
return SeekSongOrder(pc, i, seek_time, error);
SeekSongOrder(pc, i, seek_time);
}
bool
playlist::SeekSongId(PlayerControl &pc, unsigned id, SongTime seek_time,
Error &error)
void
playlist::SeekSongId(PlayerControl &pc, unsigned id, SongTime seek_time)
{
int song = queue.IdToPosition(id);
if (song < 0)
throw PlaylistError::NoSuchSong();
return SeekSongPosition(pc, song, seek_time, error);
SeekSongPosition(pc, song, seek_time);
}
bool
void
playlist::SeekCurrent(PlayerControl &pc,
SignedSongTime seek_time, bool relative,
Error &error)
SignedSongTime seek_time, bool relative)
{
if (!playing)
throw PlaylistError::NotPlaying();
@@ -274,5 +269,5 @@ playlist::SeekCurrent(PlayerControl &pc,
if (seek_time.IsNegative())
seek_time = SignedSongTime::zero();
return SeekSongOrder(pc, current, SongTime(seek_time), error);
SeekSongOrder(pc, current, SongTime(seek_time));
}