Basic plugin playback control menu by Jonathan Gordon (Patch #4874)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9269 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/lib/playback_control.c

@@ -0,0 +1,114 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 Jonathan Gordon
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "plugin.h"
+
+struct plugin_api* api = 0;
+
+bool prevtrack(void)
+{
+    api->audio_prev();
+    return false;
+}
+
+bool play(void)
+{
+    if (api->audio_status() & AUDIO_STATUS_PAUSE)
+        api->audio_resume();
+    else
+        api->audio_pause();
+    return false;
+}
+
+bool stop(void)
+{
+    api->audio_stop();
+    return false;
+}
+
+bool nexttrack(void)
+{
+    api->audio_next();
+    return false;
+}
+
+static bool volume(void)
+{
+    return api->set_sound("Volume", &api->global_settings->volume,
+                          SOUND_VOLUME);
+}
+
+static bool shuffle(void)
+{
+    struct opt_items names[] = {
+        {"No", NULL},
+        {"Yes", NULL}
+    };
+    return api->set_option("Shuffle", &api->global_settings->playlist_shuffle,
+                           BOOL, names, 2,NULL);
+}
+
+static bool repeat_mode(void)
+{
+    bool result;
+    static const struct opt_items names[] = {
+        { "Off", NULL },
+        { "Repeat All", NULL },
+        { "Repeat One", NULL },
+        { "Repeat Shuffle", NULL },
+#ifdef AB_REPEAT_ENABLE
+        { "Repeat A-B", NULL }
+#endif
+    };
+    
+    int old_repeat = api->global_settings->repeat_mode;
+
+    result = api->set_option( "Repeat Mode",
+                              &api->global_settings->repeat_mode,
+                              INT, names, NUM_REPEAT_MODES, NULL );
+
+    if (old_repeat != api->global_settings->repeat_mode &&
+        (api->audio_status() & AUDIO_STATUS_PLAY))
+        api->audio_flush_and_reload_tracks();
+
+    return result;
+}
+
+bool playback_control(struct plugin_api* newapi)
+{
+    int m;
+    api = newapi;
+    bool result;
+    
+    static struct menu_item items[] = {
+        { "Previous Track", prevtrack },
+        { "Pause / Play", play },
+        { "Stop Playback", stop },
+        { "Next Track", nexttrack },
+        { "Change Volume", volume },
+        { "Enable/Disable Shuffle", shuffle },
+        { "change Repeat Mode", repeat_mode },
+    };
+
+    m=api->menu_init( items, sizeof(items) / sizeof(*items), NULL,
+                 NULL, NULL, NULL);
+    result = api->menu_run(m);
+    api->menu_exit(m);
+    return result;
+}