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Add a dumb Current tab

This commit is contained in:
Přemysl Eric Janouch 2016-10-10 16:02:57 +02:00
parent 01ab646b11
commit d9f992b23d
Signed by: p
GPG Key ID: B715679E3A361BE6
2 changed files with 191 additions and 38 deletions
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2
README.adoc
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@ -11,7 +11,7 @@ names, and should be pronounced as "nincompoop".
Features
--------
Currently it's under development and doesn't do much else than show the status.
Currently it's under development and doesn't show the music library yet.
Since I only use the filesystem browsing mode, that's also the only thing
I care to implement. Anything else will have to be user-contributed while

227
nncmpp.c
View File

@ -142,6 +142,13 @@ clock_msec (clockid_t clock)
return (int64_t) tp.tv_sec * 1000 + (int64_t) tp.tv_nsec / 1000000;
}
static bool
xstrtoul_map (const struct str_map *map, const char *key, unsigned long *out)
{
const char *field = str_map_find (map, key);
return field && xstrtoul (out, field, 10);
}
static char *
latin1_to_utf8 (const char *latin1)
{
@ -455,6 +462,13 @@ struct tab
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
struct playlist
{
struct str_map *items; ///< Current playlist
size_t len; ///< Length
size_t alloc; ///< Allocated items
};
struct attrs
{
short fg; ///< Foreground colour index
@ -491,10 +505,14 @@ static struct app_context
int64_t elapsed_since; ///< Time of the next tick
// TODO: initialize these to -1
int song; ///< Current song index
int song_elapsed; ///< Song elapsed in seconds
int song_duration; ///< Song duration in seconds
int volume; ///< Current volume
struct playlist playlist; ///< Current playlist
uint32_t playlist_version; ///< Playlist version
// Data:
struct config config; ///< Program configuration
@ -549,6 +567,68 @@ tab_free (struct tab *self)
free (self->name);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
playlist_init (struct playlist *self)
{
memset (self, 0, sizeof *self);
self->items = xcalloc (sizeof *self->items, (self->alloc = 16));
}
static void
playlist_free (struct playlist *self)
{
for (size_t i = 0; i < self->len; i++)
str_map_free (&self->items[i]);
free (self->items);
}
static bool
playlist_set (struct playlist *self, int i, struct str_map *item)
{
if (i < 0 || (size_t) i >= self->len)
return false;
str_map_free (&self->items[i]);
self->items[i] = *item;
return true;
}
static struct str_map *
playlist_get (struct playlist *self, int i)
{
if (i < 0 || (size_t) i >= self->len)
return false;
return &self->items[i];
}
static void
playlist_resize (struct playlist *self, size_t len)
{
// Make the allocated array big enough but not too large
size_t new_alloc = self->alloc;
while (new_alloc < len)
new_alloc <<= 1;
while (len < (new_alloc >> 2)
&& new_alloc >= (STR_MAP_MIN_ALLOC << 1))
new_alloc >>= 1;
// Dispose of items that are out of range and resize the array if needed
for (size_t i = len; i < self->len; i++)
str_map_free (&self->items[i]);
if (new_alloc != self->alloc)
self->items = xreallocarray (self->items,
sizeof *self->items, new_alloc);
// We need to initialize placeholders so that str_map_find() succeeds
for (size_t i = self->len; i < len; i++)
str_map_init (&self->items[i]);
self->len = len;
}
// --- Configuration -----------------------------------------------------------
static struct config_schema g_config_settings[] =
@ -730,6 +810,7 @@ app_init_context (void)
mpd_client_init (&g_ctx.client, &g_ctx.poller);
config_init (&g_ctx.config);
str_vector_init (&g_ctx.streams);
playlist_init (&g_ctx.playlist);
// This is also approximately what libunistring does internally,
// since the locale name is canonicalized by locale_charset().
@ -782,6 +863,7 @@ app_free_context (void)
mpd_client_free (&g_ctx.client);
str_map_free (&g_ctx.playback_info);
str_vector_free (&g_ctx.streams);
playlist_free (&g_ctx.playlist);
config_free (&g_ctx.config);
poller_free (&g_ctx.poller);
@ -1031,9 +1113,9 @@ app_flush_header (struct row_buffer *buf, chtype attrs)
static void
app_draw_song_info (void)
{
// The map doesn't need to be initialized at all, so we need to check
struct str_map *map = &g_ctx.playback_info;
if (!soft_assert (map->len != 0))
struct str_map *map;
if (!(map = playlist_get (&g_ctx.playlist, g_ctx.song))
|| !soft_assert (map->len != 0))
return;
// XXX: can we get rid of this and still make it look acceptable?
@ -1805,8 +1887,45 @@ app_process_termo_event (termo_key_t *event)
return false;
}
// --- Current tab -------------------------------------------------------------
// TODO: remove the useless wrapper struct?
static struct
{
struct tab super; ///< Parent class
}
g_current_tab;
static void
current_tab_on_item_draw (size_t item_index, struct row_buffer *buffer,
int width)
{
// TODO: better output
struct str_map *map = playlist_get (&g_ctx.playlist, item_index);
row_buffer_append (buffer, str_map_find (map, "file"),
(int) item_index == g_ctx.song ? A_BOLD : 0);
}
static void
current_tab_update (void)
{
g_current_tab.super.item_count = g_ctx.playlist.len;
app_invalidate ();
}
static struct tab *
current_tab_init (void)
{
struct tab *super = &g_current_tab.super;
tab_init (super, "Current");
super->on_item_draw = current_tab_on_item_draw;
return super;
}
// --- Streams -----------------------------------------------------------------
// MPD can only parse m3u8 playlists, and only when it feels like doing so
struct stream_tab_task
{
struct poller_curl_task curl; ///< Superclass
@ -2101,13 +2220,16 @@ info_tab_update (void)
str_vector_reset (&g_info_tab.values);
g_info_tab.super.item_count = 0;
struct str_map *map = &g_ctx.playback_info;
info_tab_add (map, "Title");
info_tab_add (map, "Artist");
info_tab_add (map, "Album");
info_tab_add (map, "Track");
info_tab_add (map, "Genre");
info_tab_add (map, "File");
struct str_map *map;
if ((map = playlist_get (&g_ctx.playlist, g_ctx.song)))
{
info_tab_add (map, "Title");
info_tab_add (map, "Artist");
info_tab_add (map, "Album");
info_tab_add (map, "Track");
info_tab_add (map, "Genre");
info_tab_add (map, "file");
}
}
static struct tab *
@ -2257,11 +2379,9 @@ mpd_update_playback_state (void)
}
}
unsigned long tmp;
if (time && xstrtoul (&tmp, time, 10))
g_ctx.song_elapsed = tmp;
if (duration && xstrtoul (&tmp, duration, 10))
g_ctx.song_duration = tmp;
unsigned long n;
if (time && xstrtoul (&n, time, 10)) g_ctx.song_elapsed = n;
if (duration && xstrtoul (&n, duration, 10)) g_ctx.song_duration = n;
// We could also just poll the server each half a second but let's not
int msec_past_second = 0;
@ -2271,11 +2391,11 @@ mpd_update_playback_state (void)
{
// For some reason this is much more precise
*period++ = '\0';
if (xstrtoul (&tmp, elapsed, 10))
g_ctx.song_elapsed = tmp;
if (xstrtoul (&n, elapsed, 10))
g_ctx.song_elapsed = n;
if (xstrtoul (&tmp, period, 10))
msec_past_second = tmp;
if (xstrtoul (&n, period, 10))
msec_past_second = n;
}
if (g_ctx.state == PLAYER_PLAYING)
{
@ -2284,29 +2404,63 @@ mpd_update_playback_state (void)
}
// The server sends -1 when nothing is being played right now
char *volume = str_map_find (map, "volume");
if (volume && xstrtoul (&tmp, volume, 10))
g_ctx.volume = tmp;
if (xstrtoul_map (map, "volume", &n)) g_ctx.volume = n;
if (xstrtoul_map (map, "playlist", &n)) g_ctx.playlist_version = n;
if (xstrtoul_map (map, "song", &n)) g_ctx.song = n;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Sometimes it's not that easy and there can be repeating entries
static void
mpd_vector_to_map (const struct str_vector *data, struct str_map *map)
mpd_init_response_map (struct str_map *map)
{
str_map_init (map);
map->key_xfrm = tolower_ascii_strxfrm;
map->free = free;
}
char *key, *value;
static void
mpd_process_info_chunk (struct str_map *map, char *file)
{
unsigned long n;
if (!file)
{
if (xstrtoul_map (map, "playlistlength", &n))
playlist_resize (&g_ctx.playlist, n);
g_ctx.playback_info = *map;
}
else if (!xstrtoul_map (map, "pos", &n)
|| !playlist_set (&g_ctx.playlist, n, map))
str_map_free (map);
mpd_init_response_map (map);
}
static void
mpd_process_info (const struct str_vector *data)
{
struct str_map map;
mpd_init_response_map (&map);
// First there's the status, followed by playlist items chunked by "file"
char *key, *value, *file = NULL;
for (size_t i = 0; i < data->len; i++)
{
if ((key = mpd_client_parse_kv (data->vector[i], &value)))
str_map_set (map, key, xstrdup (value));
else
if (!(key = mpd_client_parse_kv (data->vector[i], &value)))
{
print_debug ("%s: %s", "erroneous MPD output", data->vector[i]);
continue;
}
if (!strcasecmp_ascii (key, "file"))
{
mpd_process_info_chunk (&map, file);
file = value;
}
str_map_set (&map, key, xstrdup (value));
}
mpd_process_info_chunk (&map, file);
str_map_free (&map);
}
static void
@ -2316,21 +2470,17 @@ mpd_on_info_response (const struct mpd_response *response,
(void) user_data;
// TODO: do this also on disconnect
g_ctx.song = -1;
g_ctx.song_elapsed = -1;
g_ctx.song_duration = -1;
g_ctx.volume = -1;
str_map_free (&g_ctx.playback_info);
poller_timer_reset (&g_ctx.elapsed_event);
g_ctx.playlist_version = 0;
// TODO: preset an error player state?
if (response->success)
{
// Note that we may receive a "time" field twice, however the right
// one wins here due to the order we send the commands in
struct str_map map;
mpd_vector_to_map (data, &map);
g_ctx.playback_info = map;
}
mpd_process_info (data);
else
{
print_debug ("%s: %s",
@ -2338,6 +2488,7 @@ mpd_on_info_response (const struct mpd_response *response,
}
mpd_update_playback_state ();
current_tab_update ();
info_tab_update ();
app_invalidate ();
}
@ -2363,11 +2514,12 @@ mpd_request_info (void)
struct mpd_client *c = &g_ctx.client;
mpd_client_list_begin (c);
mpd_client_send_command (c, "currentsong", NULL);
mpd_client_send_command (c, "status", NULL);
char *last_version = xstrdup_printf ("%" PRIu32, g_ctx.playlist_version);
mpd_client_send_command (c, "plchanges", last_version, NULL);
free (last_version);
mpd_client_list_end (c);
mpd_client_add_task (c, mpd_on_info_response, NULL);
mpd_client_idle (c, 0);
}
@ -2747,6 +2899,7 @@ main (int argc, char *argv[])
app_prepend_tab (info_tab_init ());
if (g_ctx.streams.len)
app_prepend_tab (streams_tab_init ());
app_prepend_tab (current_tab_init ());
app_switch_tab ((g_ctx.help_tab = help_tab_init ()));
g_ctx.polling = true;