Display Message in Compose Email Window

[Utkarsha]

Hello All,

I have been trying to display message on compose email frame whenever user clicks on 'Send' button...

I am using UI Script but I am not sure whether I am using right approach or not...

Could anyone please correct me here?

Thank you in advance!

UI Script:DisplayMsgInMailClient

var global = global || {};

global.DisplayMsgInMailClient = (function() {
    "use strict";

    function addLoadEvent(func) {
        var oldonload = window.onload;
        if (typeof window.onload != 'function') {
            window.onload = func;
        } else {
            window.onload = function() {
                if (oldonload) {
                    oldonload();
                }
                func();
            }
        }
    }

    // Function to display message in the email client
    function displayMessageInEmailClient() {
        try {
            var URL = document.URL;
            if (URL.indexOf("/email_client.do?sysparm_table=incident") != -1) {
                var tagPosition = URL.indexOf("sysparm_sys_id=");
                if (tagPosition != -1) {
                    var taskSysId = URL.substr(tagPosition + 15, 32);
                    var task = new GlideRecord("incident");
                    if (task.get(taskSysId)) { // Use get() instead of hasNext()
                        // Display a sticky info message using GlideUI
                        GlideUI.get().addInfoMessage("The Email has been sent");
                    }
                }
            }
        } catch (e) {
            console.log(e); // Log any errors to the console
        }
    }

    // Call the display function when the page loads
    addLoadEvent(displayMessageInEmailClient);

    // Public API (currently not used in the example, but can be extended as needed)
    return {
        type: "DisplayMsgInMailClient"
    };

})();