Copy keyframe from a library symbol and paste into current timeline

[kilopop2000]

Trying to copy a keyframe from a symbol ("model") in the library to paste into the current timeline. But have had no luck getting the symbol's timeline object. 

This isn't working:

var item = dom.library.selectItem("model") 
var childTimeline = item.timeline

fl.trace(childTimeline) // outputs: childTimeline = undefined

Any advice much appreciated.

[kglad]

does item exist?  (there's a itemExists() method that can also be used to check.)

[kilopop2000]

@kglad, thanks for your reply. Yes, the item does exist. I've arrived at the following way to now access the timeline object of the library item in question with:

dom.library.selectItem("model")
var copyTL = dom.library.getSelectedItems()[0].timeline[1]

Question is, how to copy frames from this copyTL timeline? The following returns "TypeError: copyTL.setSelectedFrames is not a function"

var cFrom = 1

var cTo = 3

for (i = 0; i < copyTL.length; i++) {
     copyTL.currentLayer = i;
     copyTL.setSelectedFrames(cFrom, cTo);
     copyTL.copyFrames(cFrom, cTo+1);

}

[kglad]

copyTL needs to be a timeline.  you're making it an array of layers.

try:

copyTL = dom.library.getSelectedItems()[0].timeline;

[kilopop2000]

Thanks kglad, yep it works to differentiate between the timeline and the array. 

Nearly there I think..

In order to copy and paste between a library item and the current timeline, the following code iterates over the library item's timeline selecting a layer and copying some frames and then looks for the same layer name in the current timline to paste into. But when the following is run, nothing is pasted except an empty keframe on the currently selected layer (in this case, 1 of 20 layers). 

	var dom = fl.getDocumentDOM();
	var tl = dom.getTimeline();
	var layers = tl.layers;
	
	// Define the library item
	
	var pName = String(tl.name + '/puppet/' + tl.name + '_poses')
	
	dom.library.selectItem(pName) 
	var copyTL		= dom.library.getSelectedItems()[0].timeline;	
	var copyTLArray 	= dom.library.getSelectedItems()[0].timeline[1];	
	
	// Copy and Paste Details
	
	// Copy
	
	var cFrom = 1
	var cTo = 2
	var pFrom = tl.currentFrame
	var pTo = pFrom + (cTo - cFrom)
	
	// Iterate Over copyTL and copy frames to paste into tl
	
	for (i = 0; i < copyTLArray.length; i++) {
		
		// Copy frames from copyTL
		
		copyTL.currentLayer = i;
		copyTL.setSelectedFrames(cFrom, cTo);
		copyTL.copyFrames(cFrom, cTo+1);
		
		// Select layer in tl based on name of copyTL[i].name
		
		var index = tl.findLayerIndex(copyTLArray[i].name);
		
		if (!index) {
			fl.trace("No layer called + " + copyTLArray[i].name)
		}
		else {
			tl.currentLayer = index
			tl.setSelectedFrames(pFrom, pTo);
			tl.pasteFrames(pFrom, pTo+1);	
		}	
	}

 
Any ideas why nothing is being pasted?

[kglad]

setting a layer active (with the currentLayer property) isn't the same a selecting it (with setSelectedLayers method).  ie, use:

tl.setSelectedLayers(i)

[kilopop2000 · Accepted solution]

Thanks kglad, that was it. So now, how to copy frames from a library item and paste into the same named layers in the current timeline:

// Define this timeline

var dom = fl.getDocumentDOM();
var tl = dom.getTimeline();
var layers = tl.layers;


// Define the library item

var pName = String(tl.name + '/puppet/' + tl.name + '_poses')

dom.library.selectItem(pName) 
var copyTL		 	= dom.library.getSelectedItems()[0].timeline;	
var copyTLArray 	= copyTL[1];	

// Copy and paste frames variables

var cFrom = 1
var cTo = 2
var pFrom = tl.currentFrame
var pTo = pFrom + (cTo - cFrom)


// Iterate Over copyTLArray and copy frames to paste into tl

for (i = 0; i < copyTLArray.length; i++) {
	
	// Copy frames from copyTL
	
	copyTL.setSelectedLayers(i)
	copyTL.currentLayer = i
	copyTL.setSelectedFrames(cFrom, cTo);
	copyTL.copyFrames(cFrom, cTo+1);
	
	// Select layer in tl based on name of copyTL[i].name
	
	var index = Number(tl.findLayerIndex(copyTLArray[i].name))
	
	if (!index) {
		fl.trace("No layer called + " + copyTLArray[i].name)
	}
	else {
		
		// Check if keyframe exists
		
		var cLayer = layers[index]
		var frame = cLayer.frames[tl.currentFrame];
		var keyframe = frame.startFrame == tl.currentFrame
		
		// Select layer and frames
		
		fl.trace("huh = " + copyTLArray[i].name + " " + index)
		tl.setSelectedLayers(index)
		tl.setSelectedFrames(pFrom, pTo);
		
		if(!keyframe){ // if false
			
			var tFrame = tl.currentFrame;
			tl.convertToKeyframes(tFrame);			
		} 
		
		tl.pasteFrames(pFrom, pTo+1);
		
	}	
}

This code also adds a keyframe in the current tl.layer if there isn't one, but so far only returns a trace output if there is a layer in the symbol item that isn't already in the tl.