EmailTextField Write.Default.cshtml - Autofill user

Write.Default.cshtml

@model Telerik.Sitefinity.Frontend.Forms.Mvc.Models.Fields.EmailTextField.EmailTextFieldViewModel

@using Telerik.Sitefinity.UI.MVC;
@using Telerik.Sitefinity.Frontend.Forms.Mvc.Helpers;
@using Telerik.Sitefinity.Frontend.Mvc.Helpers;
@using Telerik.Sitefinity.Modules.Pages;
@using global::Medportal.Sitefinity.Controls;
@using Telerik.Sitefinity.Services;
@using Telerik.Sitefinity.Localization;
@using Telerik.Sitefinity.Frontend.Forms.Mvc.StringResources

///########################################################################
///###### Obviously remove\replace the Medportal.Sitefinity.Controls code to get the user or check anonymous

@{
    var untitledLabel = Res.Get<FieldResources>().Untitled;
    var isSFBackend = SystemManager.CurrentHttpContext.Request.Url.AbsoluteUri.Contains("/Sitefinity");
    var isDesignMode = SystemManager.IsDesignMode && !SystemManager.IsPreviewMode && isSFBackend;
    var isAuthenticated = Util.IsAnonymous ? false : true;
}

@if (!isAuthenticated && !isDesignMode)
{
    var isRequired = Model.ValidatorDefinition.Required.HasValue && Model.ValidatorDefinition.Required.Value ? "true" : "false";
    var hasDescription = !string.IsNullOrEmpty(Model.MetaField.Description);

    <div class="@Model.CssClass form-group" data-sf-role="email-text-field-container">
        <input data-sf-role="violation-restrictions" type="hidden" value='{"maxLength":"@Model.ValidatorDefinition.MaxLength", "minLength": "@Model.ValidatorDefinition.MinLength"}' />
        <input data-sf-role="violation-messages" type="hidden" value='{"maxLength":"@Model.ValidatorDefinition.MaxLengthViolationMessage", "required": "@Model.ValidatorDefinition.RequiredViolationMessage", "invalid": "@Html.Resource("InvalidEntryMessage")", "regularExpression": "@Model.ValidatorDefinition.RegularExpressionViolationMessage"}' />

        <label class="h6" for='@Html.UniqueId("Email")'>@Model.MetaField.Title</label>
        <input id='@Html.UniqueId("Email")'
               data-sf-role="email-text-field-input"
               type="@Model.InputType.ToHtmlInputType()"
               class="form-control"
               name="@Model.MetaField.FieldName"
               placeholder="@Model.PlaceholderText"
               value="@Model.Value"
               aria-required="@isRequired"
               @Html.Raw(Model.ValidationAttributes)
               @{if (hasDescription) { <text> aria-describedby='@Html.UniqueId("EmailInfo") @Html.UniqueId("EmailErrorMessage")' </text>  } else { <text> aria-describedby='@Html.UniqueId("TextboxErrorMessage")' </text>  } } />

        @if (hasDescription)
        {
            <p id='@Html.UniqueId("EmailInfo")' class="text-muted">@Model.MetaField.Description</p>
        }

        <div id='@Html.UniqueId("EmailErrorMessage")' data-sf-role="error-message" role="alert" aria-live="assertive" class="text-danger"></div>
    </div>

    <div>
        @Html.Script(Url.WidgetContent("Mvc/Scripts/EmailTextField/email-text-field.js"), "bottom", false)
    </div>
}
else if (isAuthenticated && !isDesignMode)
{
    var currentUser = global::Medportal.Sitefinity.Controls.Util.CurrentUsername;

    <!-- Authenticated Live -->
    <input id='@Html.UniqueId("Email")' type="hidden" name="@Model.MetaField.FieldName" value="@currentUser" />
}
else
{
    var currentUser = global::Medportal.Sitefinity.Controls.Util.CurrentUsername;

    <!-- Design mode -->
    <div class="sf-fieldWrp form-group">
        <label for='@Html.UniqueId("HiddenField")'>
            @if (string.IsNullOrEmpty(Model.MetaField.FieldName))
            {
                @untitledLabel;
            }
            else
            {
                @Model.MetaField.FieldName;
            }

        </label>
        <input id='@Html.UniqueId("Email")' type="text" class="form-control" name="@Model.MetaField.FieldName" value="@currentUser" disabled="disabled" />
    </div>
}