Custom Control in JavaScript Effected on Post back when data is sent back to the Server

[mwilliams00]

I have created a Custom List Form in InfoPath and added a JavaScript Control to Sign the form (Link below). However, when I use the people picker or populate a field based on another field the Custom control fails to render. I've read on Post back or Ajax update the JavaScript function isn't called. How can I stop the Custom Control from being effected on Post back or Ajax update?

[mockdeep]

@mwilliams00 I'm not sure how this relates to Signature Pad. Can you give a little more detail on the problem you're trying to solve?

[mwilliams00]

When the code is ran below and creates the signature box, there is a postback at the time I use a custom control to lookup data on the server. The signature box disappears. How can I make it where this code isn't effected at the time the Post Back happens.

$(document).ready(function() {
    // Find the guts of the InfoPath form in the page
    var infoPathContainer = $("div[id$='XmlFormView']");
    // if there's no InfoPath form, then we have nothing to do here (escape early)
    if (infoPathContainer.length !== 0) {
        setupSignatures(infoPathContainer);
    }
});
// There's an InfoPath form in the page, so look for signature fields and set them up
function setupSignatures(infoPathContainer) {
    // The Signature "signature" in the form. This makes it easy to select the proper form elements
    var signatureSignature = "==Signature==";
    // The signature field should be inside a section with its tooltip=signatureSignature
    var signatureContainer = infoPathContainer.find("fieldset[title='" + signatureSignature + "']");
    // The Signature field is the lone input element in the section
    var signatureBox = signatureContainer.find("input");
    // We may have multiple signature fields in the form
    signatureBox.each(function() {
        var thisSignatureBox = $(this);
        // We need a reference to the fieldset which represents the section several times
        var thisSignatureFieldset = thisSignatureBox.closest("fieldset");
        // Clean up the display by hiding the field we're using to store the JSON
        thisSignatureBox.hide();
        // The signature data is the value of the signatureBox
        var signatureData = thisSignatureBox.val();
        // If there's no signature yet...
        if (signatureData === "") {
            // Add the appropriate markup to the page
            thisSignatureBox.before(buildSignatureBox());
            // Bind to the click event for the 'Ready to Sign' button
            thisSignatureFieldset.find(".signature-ready").click(function() {
                $(this).toggle();
                $(this).next("div").toggle();
            });
            // Activate the signature pad in drawOnly mode
            var signatureArea = thisSignatureFieldset.find(".signature-box").signaturePad({
                drawOnly: true,
                lineTop: 125,
                output: thisSignatureBox,
                onBeforeValidate: function(context, settings) {
                    thisSignatureBox.focus(); // Needed to fire the change events bound to the field
                    thisSignatureBox.blur(); // Needed to fire the change events bound to the field
                    thisSignatureBox.hide(); // In case it becomes visible again
                }
            });
            // When the user clicks the button below the signature pad, validate
            thisSignatureFieldset.find(".signature-done").click(function() {
                thisSignatureFieldset.find("p.error").remove();
                signatureArea.validateForm();
            });
            // If we already have signature data, just show the existing signature
        } else {
            // Add the appropriate markup to the page
            thisSignatureBox.before(buildSignatureDisplay());
            // Activate the signature pad in displayOnly mode
            thisSignatureFieldset.find(".sigPad").signaturePad({
                displayOnly: true
            }).regenerate(signatureData);
        }
    });
}
// Function to emit the markup for the signature pad in signing mode
function buildSignatureBox() {
    var signatureBox = "<div class='signature-box'>" +
        "<input class='signature-ready' type='button' value='Ready to sign'/>" +
        "<div style='display:none;'>" +
        "<ul class='sigNav'>" +
        "<li class='drawIt'><a href='#draw-it'>Sign Here</a></li>" +
        "<li class='clearButton'><a href='#clear'>Clear</a></li>" +
        "</ul>" +
        "<div class='sig sigWrapper'>" +
        "<canvas class='pad' width='700' height='150'></canvas>" +
        "<input type='hidden' name='output' class='output'>" +
        "</div>" +
        "<input class='signature-done' type='button' value='Capture signature'/>" +
        "</div>" +
        "</div>";
    return signatureBox;
}
// Function to emit the markup for the signature pad in display mode
function buildSignatureDisplay() {
    var signatureDisplay = "<div class='sigPad signed'>" +
        "<div class='sigWrapper'>" +
        "<canvas width='700' height='150' class='pad'></canvas>" +
        "</div>" +
        "</div>";
    return signatureDisplay;
}

[mockdeep]

@mwilliams00 it's hard to tell without a more complete repro, but you do have several calls to hide() and toggle() in your code that look like they could be the culprit. If you can push up a repo that has an easy to run reproduction, I can take a closer look.