Copy a vector mask from a shape to another (non-shape) layer.

moveMaskFrom.js

//
// Copy the vector mask from a shape to another layer.
// This takes layer names, modify as indicated below to take
// layer ID's instead.
// The shape is not deleted or modified.

function createMaskFromShape(srcShapeName, layerToClip)
{
    srcLayerRef = {"_ref":"layer","_name":srcShapeName};    // Replace "_name" with "_id"
    dstLayerRef = {"_ref":"layer","_name":layerToClip};     // to use layer ID's instead.

    vecMaskRef = {"_ref":"path","_enum":"path","_value":"vectorMask"};
    vecLayerMaskref = {"_ref":[vecMaskRef, {"_ref":"layer","_enum":"ordinal",
                                            "_value":"targetEnum"}]};

    srcLayerDesc = {"null":{"_ref":[srcLayerRef]}};
    vecMaskDesc = {"null":vecLayerMaskref};
    makeMaskDesc = {"null":{"_ref":[{"_ref":"path"}]},
                            "at":{"_ref":[vecMaskRef, dstLayerRef]},
                            "using":vecLayerMaskref};

    var batchList = [{name:"select", descriptor:srcLayerDesc},
                     {name:"select", descriptor:vecMaskDesc},
                     {name:"make",   descriptor:makeMaskDesc}];

    return new Promise(function( resolve, reject ) {
        _spaces.ps.descriptor.batchPlay( batchList, {},
                                         function( err, desc, errors )
                                         {
                                            if (err)
                                                reject(errors);
                                            else
                                                resolve(err);
                                         });
    });
}

function doMask()
{
    createMaskFromShape("Shape", "Paint").then(function() {console.log("ok")})
                             .catch(function(err) {console.log("Fail:"+err);});
}