public virtual void OnBuildTrackContextMenu(GenericMenu menu, TrackAsset trackAsset, ITimelineState state)
{
bool flag = trackAsset is AnimationTrack || trackAsset is AudioTrack;
if (flag)
{
List <Type> list = TimelineHelpers.GetTypesHandledByTrackType(TimelineHelpers.TrackTypeFromType(trackAsset.GetType())).ToList <Type>();
for (int i = 0; i < list.Count; i++)
{
Type assetType = list[i];
this.AddAddAssetMenuItem(menu, assetType, trackAsset, state);
}
}
else if (TimelineHelpers.GetMediaTypeFromType(trackAsset.GetType()) == TimelineAsset.MediaType.Script)
{
Type customPlayableType = trackAsset.GetCustomPlayableType();
if (customPlayableType != null)
{
string displayName = TrackDrawer.GetDisplayName(customPlayableType);
GUIContent gUIContent = new GUIContent("Add " + displayName + " Clip");
menu.AddItem(new GUIContent(gUIContent), false, delegate(object userData)
{
TimelineHelpers.CreateClipOnTrack(userData as Type, trackAsset, state);
}, customPlayableType);
}
}
ITimelineMarkerContainer markerContainer = trackAsset as ITimelineMarkerContainer;
if (markerContainer != null)
{
menu.AddItem(TrackDrawer.Styles.newMarker, false, delegate
{
this.CreateNewMarker(markerContainer, state);
});
IEnumerable <string> enumerable = (from x in markerContainer.GetMarkers()
select x.key).Distinct <string>();
if (enumerable.Any <string>())
{
using (IEnumerator <string> enumerator = enumerable.GetEnumerator())
{
while (enumerator.MoveNext())
{
string key = enumerator.Current;
menu.AddItem(new GUIContent(TrackDrawer.Styles.addMarker.get_text() + key), false, delegate
{
this.CreateExistingMarker(key, markerContainer, state);
});
}
}
}
}
}
