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[Editor] how to set TimelineClip as Selection.activeObject

Discussion in 'Timeline' started by Flag74, Oct 5, 2018.

  1. Flag74

    Flag74

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    [Editor] Having the TimelineClip object (obtained through reflection), how can I set it as current selection.activeObject so that Inspector opens it?
    thx
     
    Flag74, Oct 5, 2018
    #1

  2. seant_unity

    seant_unity

    Unity Technologies

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    TLDR: There isn't really a public way to do it and maintain the same inspector as Timeline.

    TimelineClip doesn't derive from UnityEngine.Object, so it is not selectable. We work around that by using a scriptableobject that is have it reference the clip.

    Code (CSharp):
    1.     class EditorClip : ScriptableObject
    2.     {
    3.         public TimelineClip m_Clip;
    4.     }
    We then select the editor clip. You can do the same, but the inspector is tied to our internal editor clip type, so you won't get the property inspector if you use your own type.
     
    seant_unity, Oct 5, 2018
    #2

  3. Flag74

    Flag74

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    How can I get the EditorClip from TimelineClip object?
     
    Flag74, Oct 16, 2018
    #3

  4. seant_unity

    seant_unity

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    You can't, but if you use the class above, you can create one using ScriptableObject.CreateInstance<EditorClip>(). Then set the m_Clip variable, and assign it to Selection.activeObject.
     
    seant_unity, Oct 16, 2018
    #4

  5. Flag74

    Flag74

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    UnityEditor.Timeline.EditorClip is an internal class, thus I cannot access it :(

    EDIT: how can I use reflection for this?
     
    Flag74, Oct 19, 2018
    #5

  6. Flag74

    Flag74

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    Code (CSharp):
    1. Type type = Type.GetType("UnityEditor.Timeline.EditorClip, UnityEditor.Timeline");
    2. object editorclip = ScriptableObject.CreateInstance(type);
    3. FieldInfo mclp = type.GetField("m_Clip");//doesnt exist?
    4. PropertyInfo clp = type.GetProperty("clip");
    How can I access the TimelineClip from my clip (that inherits : PlayableAsset, ITimelineClipAsset) ?
    Once I get that I could just set the value of clp.
     
    Last edited: Oct 19, 2018
    Flag74, Oct 19, 2018
    #6

  7. Flag74

    Flag74

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    Ok I got the TimelineClip but without selecting the PlayableDirector gameobject from the scene, it's empy.
    Selection.SetActiveObjectWithContext(editorClip, director) doesnt help
     
    Flag74, Oct 19, 2018
    #7

  8. seant_unity

    seant_unity

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    The inspector for the clip relies on the timeline window being open. See if just having the window open helps.
     
    seant_unity, Oct 22, 2018
    #8

  9. Flag74

    Flag74

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    Yes, but how can I open the Timeline and Clip with the one (or two) calls?
     
    Flag74, Oct 22, 2018
    #9

  10. seant_unity

    seant_unity

    Unity Technologies

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    Try this to open the timeline window, before selecting the editor clip.

    Code (CSharp):
    1. Type type = Type.GetType("UnityEditor.Timeline.TimelineWindow, UnityEditor.Timeline");
    2. EditorWindow.GetWindow(type, false, null, false);
    3.  
     
    seant_unity, Oct 22, 2018
    #10

  11. Flag74

    Flag74

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    I think opening the timeline window is not enough...I should also set the Director that controls the Timeline
     
    Last edited: Oct 22, 2018
    Flag74, Oct 22, 2018
    #11