Class TrackAction

Base class for a track action. Inherit from this class to make an action that would react on selected tracks after a menu click and/or a key shortcut.

Inheritance

object

TrackAction

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: UnityEditor.Timeline.Actions

Assembly: Unity.Timeline.Editor.dll

Syntax

[ActiveInMode(TimelineModes.Default)]
public abstract class TrackAction

Remarks

To add an action as a menu item in the Timeline context menu, add MenuEntryAttribute on the action class. To make an action to react to a shortcut, use the Shortcut Manager API with TimelineShortcutAttribute. ShortcutAttribute

Examples

Simple track Action example (with context menu and shortcut support).

[MenuEntry("Custom Actions/Sample track Action")]
public class SampleTrackAction : TrackAction
{
    public override ActionValidity Validate(IEnumerable<TrackAsset> tracks)
    {
        return ActionValidity.Valid;
    }

    public override bool Execute(IEnumerable<TrackAsset> tracks)
    {
        Debug.Log("Test Action");
        return true;
    }

    [TimelineShortcut("SampleTrackAction", KeyCode.H)]
    public static void HandleShortCut(ShortcutArguments args)
    {
        Invoker.InvokeWithSelectedTracks<SampleTrackAction>();
    }
}

Methods

Execute(IEnumerable<TrackAsset>)

Execute the action.

Declaration

public abstract bool Execute(IEnumerable<TrackAsset> tracks)

Parameters

Type	Name	Description
IEnumerable<TrackAsset>	tracks	Tracks that will be used for the action.

Returns

Type	Description
bool	true if the action has been executed. false otherwise

Validate(IEnumerable<TrackAsset>)

Defines the validity of an Action for a given set of tracks.

Declaration

public abstract ActionValidity Validate(IEnumerable<TrackAsset> tracks)

Parameters

Type	Name	Description
IEnumerable<TrackAsset>	tracks	tracks that the action would act on.

Returns

Type	Description
ActionValidity	The validity of the set of tracks.