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callbacks: Add callbacks for playqueue size modifications 

Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>
This commit is contained in:
Anna Schumaker 2014-01-19 11:03:14 -05:00 committed by Anna Schumaker
parent ea687408aa
commit 42d57567e0
3 changed files with 15 additions and 0 deletions
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6
include/callback.h
View File

@ -5,13 +5,19 @@
#define OCARINA_CALLBACK_H
#include <library.h>
#include <playqueue.h>
struct Callbacks {
/* Library callbacks */
void (*on_library_add)(unsigned int, library :: Library *);
void (*on_library_update)(unsigned int, library :: Library *);
void (*on_library_track_add)(unsigned int);
void (*on_library_track_del)(unsigned int);
/* Playqueue callbacks */
void (*on_queue_track_add)(Playqueue *);
void (*on_queue_track_del)(Playqueue *);
};

4
lib/callback.cpp
View File

@ -6,6 +6,7 @@
static void no_op(unsigned int) {}
static void no_op(unsigned int id, library :: Library *path) {}
static void no_op(Playqueue *) {}
static struct Callbacks callbacks = {
@ -13,6 +14,9 @@ static struct Callbacks callbacks = {
.on_library_update = no_op,
.on_library_track_add = no_op,
.on_library_track_del = no_op,
.on_queue_track_add = no_op,
.on_queue_track_del = no_op,
};

5
lib/playqueue.cpp
View File

@ -1,6 +1,7 @@
/*
* Copyright 2013 (c) Anna Schumaker.
*/
#include <callback.h>
#include <library.h>
#include <playqueue.h>
#include <stdlib.h>
@ -62,6 +63,7 @@ unsigned int Playqueue :: add(unsigned int track_id)
library :: lookup(track_id, &song);
length += song.track->length;
get_callbacks()->on_queue_track_add(this);
return tracks.size() - 1;
}
@ -72,6 +74,7 @@ unsigned int Playqueue :: add_front(unsigned int track_id)
library :: lookup(track_id, &song);
length += song.track->length;
get_callbacks()->on_queue_track_add(this);
return 0;
}
@ -83,6 +86,7 @@ void Playqueue :: del(unsigned int plist_id)
tracks.erase(tracks.begin() + plist_id);
library :: lookup(track_id, &song);
length -= song.track->length;
get_callbacks()->on_queue_track_del(this);
}
void Playqueue :: del_track(unsigned int track_id)
@ -94,6 +98,7 @@ void Playqueue :: del_track(unsigned int track_id)
else
i++;
}
get_callbacks()->on_queue_track_del(this);
}
unsigned int Playqueue :: size()