[jsx] Given gradient path item, duplicating fill to path item on another doc

[brianp311]

Hi all, I'm working on a script where I am getting a fill gradient from a path item and duplicating to another similar path item on a separate doc (though the copy path item may be of slightly varying length. 

I tried something rudimentarily of: 

doc2.pathItem[0].fillColor = doc2.pathItem[0].fillColor;

But because the gradient info does not (and cannot) exist on doc2, the gradient copies over, but it is all white. So then I tried to read doc1's gradient info, and create a new gradient in doc2 using the following two snippets: 

var setGradientInfo = function(cco/*a custom object*/) {
    var gradient = cco.color.gradient;
    var gs = gradient.gradientStops;
    var n = gs.length;
    var i = 0;
    cco.gradientInfo = {
        type: gradient.type,
        stops: []
    };
    var stopInfo;
    for(i; i < n; i++) {
        stopInfo = {};
        for (var p in gs[i]) {
            stopInfo[p] = gs[i][p];
            cco.gradientInfo.stops.push(stopInfo);
        }
    }
}

var addGradient = function(colorObj) {
    var gi = colorObj.gradientInfo; //a custom object
    var grad = activeDocument.gradients.add();
    grad.type = gi.type;
    var n = gi.stops.length;
    var i = 0;
    var s, p;
    for (i; i < n; i++) {
        s = grad.gradientStops.add();
        for (p in gi.stops[i]) {
            s[p] = gi.stops[i][p];
        }
    }
    colorObj.color.gradient = grad;
}

The problem is, there are two gradient stops with a rampPoint of 0, which throws an error in the second function, saying a rampPoint can't overlap or be the same as an existing rampPoint. I tried to exclude writing the second 0 rampPoint if it already existed in the custom object, but the gradient came out incorrect (with black at the end). 

Does anyone have any thoughts on this? Am I overthinking this? Is there a way I can get the swatch of the gradient in doc1, and just duplicate that swatch to doc2, which would bring over the gradient object?

TIA

[CarlosCanto]

Am I overthinking this? 

TIA

By @brianp311

I think you are. I'm not sure why your code is not working (you're trying to use doc2 to doc2 perhaps that's the issue). Filling a path using the color of another path's fill in another document is possible.

try this, destination document should be active. The gradient swatch does not exists in the destination document.

var destDoc = app.documents[0];

var sourceDoc = app.documents[1]; 

var gradientPath = sourceDoc.pathItems[0];

var destPath = destDoc.pathItems[0];

destPath.fillColor = gradientPath.fillColor;

if you want to bring the gradient swatch to the destination document, then copying the path does it

var destDoc = app.documents[0];

var sourceDoc = app.documents[1]; 

var gradientPath = sourceDoc.pathItems[0];

var dup = gradientPath.duplicate(destDoc, ElementPlacement.PLACEATBEGINNING);

[femkeblanco]

Using your furnctions, I don't get the error you describe (you should be able to have two stops with the same ramp point); I do, however, get two extra stops, a white one at the beginning and a black one at the end.  I presume this is because a gradient has two stops by default, to which you are adding stops with gradientStops.add().  At any rate, as @CarlosCanto said, this works

app.documents[0].pathItems[0].fillColor = app.documents[1].pathItems[0].fillColor;