How to defined Threaded text frames

[Johnwhite]

Hi experts,

my script like this:

function movecashline()
    {
    var 
        mMsg = {title: "move frames"},
        cMH, cMV, cZP, cRO;
    cash();
    function cash ()
    {
        var 
            mTarget = checkSelection().everyItem().getElements(),
            mDoc, cMPages, cPages, cPage;
        mMsg.funName = "Main";
        while (mDoc = mTarget.pop()) {
             doRulesUp(mDoc);
             cMPages = mDoc.masterSpreads.everyItem().pages.everyItem().getElements();
             cPages = mDoc.pages.everyItem().getElements();
             while (cPage = cMPages.pop()) 
                 moveBar (cPage);
             while (cPage = cPages.pop()) 
                 moveBar (cPage);
             doRulesDown(mDoc);
            }
        }
    function moveBar (mPage, mStyle)
    {
        var 
            cTopMargin = mPage.marginPreferences.top,
            cBottomMargin = mPage.marginPreferences.bottom,
            cBounds = mPage.bounds,
            cPI, cGB,
            cStyleName = "footer",
            cPIs = mPage.textFrames.everyItem().getElements();

            while (cPI = cPIs.pop()) {
                if (!cPI.hasOwnProperty ("texts")) continue;
                if (!cPI.texts[0].characters.length) continue;
                if (!cPI.texts[0].appliedParagraphStyle.name.match(/^footer$/i)) continue;
                cGB = cPI.geometricBounds;
                if (cGB[0] > cBounds[2] - cBottomMargin)
                    cPI.move([cGB[1], cBounds[2] + 25]);
                else
                     cPI.move([cGB[1], -(cGB[2] - cGB[0]) - 25]);
                }
        }
    function doRulesUp(cDoc)
    {
         with (cDoc.viewPreferences) {
             cMH = app.activeDocument.viewPreferences.horizontalMeasurementUnits;
            cMV = app.activeDocument.viewPreferences.verticalMeasurementUnits;
            cRO = app.activeDocument.viewPreferences.rulerOrigin;
            horizontalMeasurementUnits = MeasurementUnits.POINTS;
            verticalMeasurementUnits = MeasurementUnits.POINTS;
            rulerOrigin = RulerOrigin.PAGE_ORIGIN;
            }
        cZP =cDoc.zeroPoint,
        cDoc.zeroPoint = [0,0];
        }
    function doRulesDown(cDoc)
    {
        with (cDoc.viewPreferences) {
            horizontalMeasurementUnits = cMH;
            verticalMeasurementUnits = cMV;
            rulerOrigin = cRO;
            }
        cDoc.zeroPoint = cZP;
        }
    function checkSelection () 
    {
        mMsg.funName = "Check Selection";
        if ( !app.documents.length) {
            mMsg.line = $.line - 1;
            mMsg.text = "No target detected.\nOpen any doc.";
            errorClose (mMsg);
            }
        return app.documents; // 
            }
        }

aim to move the text frame, which has text and applied to para style "footer".

but it pop up error on this case:

if there is threaded frames, like this:

and the fame is empty

the error says:

error from this line:

if (!cPI.texts[0].characters.length) continue;

reason:

Object is invalid

could some one tell how to fix, please.

thanks

regard

John

[Manan Joshi · Accepted solution]

In case of threaded frames, for 2nd textframe onwards, texts[0] is invalid when the textframe is empty. Hence your code fails, depending upon your use case you could modify your code as follows

if (!cPI.texts[0].isValid || !cPI.texts[0].characters.length) continue;

You could even identify if the textframe is a part of a thread by using the previousTextFrame property.

if(cPI.previousTextFrame != null)
     alert("The textframe is part of a thread and is not the first textframe")

-Manan

[Johnwhite]

Hi Manan

the error says:

Object does not support the property or medthod "isvalid"

after modify you code.

John

[Manan Joshi]

Sorry its a typo, its not isvalid but isValid

[Johnwhite]

Thank you Man,

thanks so much.

John