Use of ElementDef.WrapElement() to create a specific parent element

Question

I have a "lettuce" element that is not wrapped by a "bread" element. The task is given the selected "lettuce" element to wrap it in a "bread" element.

Documentation has that the ElementDef.WrapElement() returns void. When I wrap the "lettuce" element, the resulting parent element is also "lettuce". The "lettuce" element is now wrapped by a "lettuce" element.

Thoughts on how to impose a "bread" element that wraps around the "lettuce" element?

var doc = app.ActiveDoc;

var elementRange = doc.ElementSelection;

var elementLoc = elementRange.beg;

var parentElement = elementLoc.parent; // not "bread" element

var childElement = elementLoc.child; // "lettuce" element

PreChecksAndProceed(parentElement, childElement);

function PreChecksAndProceed(parentElement, childElement) {
    var elemDef, name;

    if (!childElement.ObjectValid())
    {
        alert ("AciveDoc has no ElementSelection");
        return;
    }

    elemDef = childElement.ElementDef;
    if (!elemDef.ObjectValid())
    {
        alert ("Selected element's (elemDef.ObjectValid() == false)");
        return;
    }

    name = elemDef.Name;
    if (name != "Lettuce")
    {
        alert ("Selected element is not Lettuce.");
        return;
    }

    if (!parentElement.ObjectValid())
    {
        alert ("Selected element's (parentElement.ObjectValid() == false)");
        return;
    }

    elemDef = parentElement.ElementDef;
    if (!elemDef.ObjectValid())
    {
        alert ("Parent element's (elemDef.ObjectValid() == false)");
        return;
    }

    name = elemDef.Name;
    if (name == "Bread")
    {
        alert ("Selected Lettuce element is already wrapped by a Bread element.");
        return;
    }

Wrap_Element(childElement);
return;
};

function Wrap_Element(elementToWrap) {
    var elemDef = childElement.ElementDef;
    if (!elemDef.ObjectValid())
    {
        alert ("Selected element's (elemDef.ObjectValid() == false)");
        return;
    }

    elemDef.WrapElement();

// todo the selected element is "Lettuce" that wraps the initial "Lettuce" element.
return;
};

Russ Ward · Answer

Hi Joseph,I don't have time to fully analyze the flow of this code sample, but I do notice right away that you don't ever ask the document for the element definition, so there is no way to wrap using a element. It seems that you are asking for the element definition with:var elemDef = childElement.ElementDef;...so with that, you get the element definition and therefore should expect more lettuce.Here is a sample that wraps a specified element in a specified tag, then returns the new element. Take a look at this... it should provide you the answers you need.Russ//Wraps the specified element in the specified//tag and returns the new wrapping element objectfunction wrapElement(doc, childElem, tag){ //Set the selection in the document to select //the child element, in preparation for the wrap var er = new ElementRange(); er.beg.parent = er.end.parent = childElem.ParentElement; er.beg.child = childElem; er.beg.offset = er.end.offset = 0; doc.ElementSelection = er; //Get the element definition for the wrap //element tag var elementDef = doc.GetNamedElementDef(tag); //Wrap the element elementDef.WrapElement(); //WrapElement() returns null, so we have to use a little trickery //to find the new parent element. The new element will be //completely selected, so we can get the element range //and check the child of the beginning element location. er = doc.ElementSelection; return er.beg.child;}

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