Get the same width for all the table

Hi @MonishaRajendran, I've written a script that will (a) work out the maximum width for the table and (b) set the table to that width. It probably won't do exactly what you need straight away, but at least it shows an approach to the problem. It was an interesting problem for me to solve, but I have a suspicion that there must be an easier way than mine. 🙂 Please let me know if it's helpful.

- Mark

/*

 Get Paragraph Max Width
 for Adobe Indesign 2022
 by m1b
 from https://community.adobe.com/t5/indesign-discussions/get-the-same-width-for-all-the-table/m-p/12982913

 Calculate the full width of a paragraph column measure
 and, in this example case, apply to a table width.

*/

function main() {

    app.scriptPreferences.measurementUnit = MeasurementUnits.POINTS;

    var doc = app.activeDocument;
    if (doc.selection.length && doc.selection[0].hasOwnProperty('tables')) {
        var table = doc.selection[0].tables[0];
        if (table.isValid) {
            var newWidth = getParagraphMaxWidth(table.storyOffset.texts[0]);
            if (newWidth != undefined)
                table.width = newWidth;
        }
    }
    else alert('Please select a text frame containing a table and try again.');


    /**
     * Returns the maximum width of the
     * column measure, taking into account
     * eg. paragraph indents, frame indents, etc.
     * It works by left- then right-justifying
     * the paragraph and measuring the location
     * of the first and last insertion points.
     *
     * @param {Text} text - text object
     * @return {Number} the max width
     */
    function getParagraphMaxWidth(text) {
        if (
            text.constructor.name != 'Paragraph'
            && text.paragraphs[0].isValid
        )
            text = text.paragraphs[0];

        if (text.constructor.name != 'Paragraph')
            return;

        var oldJustification = text.justification,
            hasTable = text.tables.length > 0,
            tableSideThickness = 0,
            // when an insertionPoint is before or after
            // a table that is justified towards it,
            // it has an offset of 1 point for some reason
            specialTableHorizontalOffset = hasTable ? 1 : 0;

        var left, right, insertionPointOffsets;

        // get left position when left justified
        text.justification = Justification.LEFT_ALIGN;
        insertionPointOffsets = text.paragraphs[0].insertionPoints.everyItem().horizontalOffset;
        // ignore last insertionPoint if not in same parent text frame
        if (text.insertionPoints[0].parentTextFrames[0].id !== text.insertionPoints[-1].parentTextFrames[0].id)
            insertionPointOffsets.pop();
        left = Math.min.apply(null, insertionPointOffsets) + specialTableHorizontalOffset;

        // get right position when right justified
        text.justification = Justification.RIGHT_ALIGN;
        insertionPointOffsets = text.paragraphs[0].insertionPoints.everyItem().horizontalOffset;
        // ignore last insertionPoint if not in same parent text frame
        if (text.insertionPoints[0].parentTextFrames[0].id !== text.insertionPoints[-1].parentTextFrames[0].id)
            insertionPointOffsets.pop();
        right = Math.max.apply(null, insertionPointOffsets) - specialTableHorizontalOffset;

        // reinstate old justification
        text.justification = oldJustification;

        if (hasTable)
            // add sideStrokeWidths
            tableSideThickness += (
                text.tables[0].columns[0].leftEdgeStrokeWeight / 2
                + text.tables[0].columns[-1].rightEdgeStrokeWeight / 2
            );

        // calculate maxWidth
        var maxWidth = right - left - tableSideThickness;
        return maxWidth;
    }
}

app.doScript(main, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, "Maximize Table Width");

Edit 1: removed the setTableWidth function because it didn't do any better than simply setting table.width!

Edit 2: improved getParagraphMaxWidth function so it is more robust. Now works correctly when last insertionPoint is in another text frame and takes side stroke weights into account.