Add method for returning types which inherit from MvcWebForm, WebForm…

Src/MvcPages/BrowserAdapter.cs

@@ -183,12 +183,28 @@ public  MvcWebForm<TModel> GetForm<TModel>(string formId)
             return new MvcWebForm<TModel>(formElement, Driver, supportedInputsAdapters, this.NumberOfInputSetRetries, this.AfterFieldValueSetAction);
         }
 
+        public TCustomForm GetCustomMvcForm<TCustomForm, TModel>(string formId) where TCustomForm : MvcWebForm<TModel>, new()
+        {
+            var form = new TCustomForm();
+            var formElement = this.Driver.GetStableAccessibleElementById(formId);
+            form.Init(formElement, Driver, supportedInputsAdapters, this.NumberOfInputSetRetries, this.AfterFieldValueSetAction);
+            return form;
+        }
+
         public WebForm GetForm(string formId)
         {
             var formElement = this.Driver.GetStableAccessibleElementById(formId);
             return new WebForm(formElement, Driver, supportedInputsAdapters, this.NumberOfInputSetRetries, this.AfterFieldValueSetAction);
         }
 
+        public TCustomForm GetCustomForm<TCustomForm>(string formId) where TCustomForm : WebForm, new()
+        {
+            var formElement = this.Driver.GetStableAccessibleElementByInScope(By.TagName("form"), Driver);
+            var form = new TCustomForm();
+            form.Init(formElement, Driver, supportedInputsAdapters, this.NumberOfInputSetRetries, this.AfterFieldValueSetAction);
+            return form;
+        }
+
         public WebForm GetForm()
         {
             var formElement = this.Driver.GetStableAccessibleElementByInScope(By.TagName("form"), Driver);
@@ -213,6 +229,15 @@ public IPageFragment GetPageFragmentById(string elementId)
             return new PageFragment(Driver, pageFragment);
         }
 
+        public TCustomPageFragment GetCustomPageFragmentById<TCustomPageFragment>(string elementId) 
+            where TCustomPageFragment : PageFragment, new()
+        {
+            var element = Driver.GetStableAccessibleElementById(elementId);
+            var pageFragment = new TCustomPageFragment();
+            pageFragment.Init(Driver, element);
+            return pageFragment;
+        }
+
         public void RefreshPage()
         {
             this.navigator.RefreshPage();
@@ -404,12 +429,34 @@ public interface IBrowserAdapter : IPageFragment, IBrowserCamera,  IDisposable,
         MvcWebForm<TModel> GetForm<TModel>(string formId);
 
 
+        /// <summary>
+        /// Return object that inherits from  strongly typed adapter for web form with given id
+        /// </summary>
+        /// <typeparam name="TCustomForm">Inherited object type</typeparam>
+        /// <typeparam name="TModel">Model connected with form</typeparam>
+        /// <param name="formId">Id of expected form</param>
+        ///<remarks>
+        /// This method allows to create custom objects that inherit from <see cref="MvcWebForm{T}"/>
+        /// </remarks>
+        TCustomForm GetCustomMvcForm<TCustomForm, TModel>(string formId) where TCustomForm : MvcWebForm<TModel>, new();
+
         /// <summary>
         /// Return weakly typed adapter for web form with given id
         /// </summary>
         /// <param name="formId">Id of expected form</param>
         WebForm GetForm(string formId);
 
+
+        /// <summary>
+        /// Return object that inherits from weakly typed adapter for web form with given id
+        /// </summary>
+        /// <typeparam name="TCustomForm">Class that derive from WebForm</typeparam>
+        /// <param name="formId">Id of expected form</param>
+        /// <remarks>
+        /// This method allows to create custom objects that inherit from <see cref="WebForm"/>
+        /// </remarks>
+        TCustomForm GetCustomForm<TCustomForm>(string formId) where TCustomForm : WebForm, new();
+
         /// <summary>
         /// Refresh page
         /// </summary>
@@ -434,6 +481,13 @@ public interface IBrowserAdapter : IPageFragment, IBrowserCamera,  IDisposable,
         /// <param name="elementId">Id of expected element</param>
         IPageFragment GetPageFragmentById(string elementId);
 
+
+        /// <summary>
+        /// Return page fragment with given id
+        /// </summary>
+        /// <param name="elementId">Id of expected element</param>
+        TCustomPageFragment GetCustomPageFragmentById<TCustomPageFragment>(string elementId) where  TCustomPageFragment:PageFragment, new();
+
         /// <summary>
         /// Stop execution until element with given id appear
         /// </summary>
@@ -515,5 +569,7 @@ public interface IBrowserAdapter : IPageFragment, IBrowserCamera,  IDisposable,
         /// <param name="downloadCallback">Action to invoke when finish downloading. Action parameter is a path to downloaded file,</param>
         /// <param name="downloadTimeoutInSeconds"></param>
         void DownloadFileWith(Action action, Action<string> downloadCallback = null, int downloadTimeoutInSeconds = 60);
+
+        WebForm GetForm();
     }
 }

Src/MvcPages/WebPages/PageFragment.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Drawing;
-using System.IO;
 using OpenQA.Selenium;
 using OpenQA.Selenium.Internal;
 using OpenQA.Selenium.Remote;
@@ -12,15 +11,25 @@ namespace Tellurium.MvcPages.WebPages
 {
     public class PageFragment : IPageFragment
     {
-        protected readonly RemoteWebDriver Driver;
-        protected readonly IWebElement WebElement;
+        protected RemoteWebDriver Driver;
+        protected IWebElement WebElement;
 
         public PageFragment(RemoteWebDriver driver, IWebElement webElement)
         {
             this.Driver = driver;
             this.WebElement = webElement;
         }
 
+        protected PageFragment()
+        {
+        }
+
+        public void Init(RemoteWebDriver driver, IWebElement webElement)
+        {
+            this.Driver = driver;
+            this.WebElement = webElement;
+        }
+
         public void Click()
         {
             this.Driver.ClickOn(this.WebElement);
@@ -141,11 +150,11 @@ private byte[] TakeSceenshotManually()
         {
             var wholePageScreenshot = Driver.GetScreenshot();
             var imageScreen = wholePageScreenshot.AsByteArray.ToBitmap();
-            var webElementArea = GetWebElementAreaContrainedTo(imageScreen);
+            var webElementArea = GetWebElementAreaConstrainedTo(imageScreen);
             return imageScreen.Clone(webElementArea, imageScreen.PixelFormat).ToBytes();
         }
 
-        private Rectangle GetWebElementAreaContrainedTo(Bitmap imageScreen)
+        private Rectangle GetWebElementAreaConstrainedTo(Bitmap imageScreen)
         {
             var originalLocation = this.WebElement.Location;
             var originalSize = this.WebElement.Size;

Src/MvcPages/WebPages/WebForms/MvcWebForm.cs

@@ -18,6 +18,11 @@ public MvcWebForm(IWebElement webElement, RemoteWebDriver driver, List<IFormInpu
         {
         }
 
+        public MvcWebForm()
+        {
+        }
+
+
         /// <summary>
         /// Set value for field indicated by expression
         /// </summary>

Src/MvcPages/WebPages/WebForms/WebForm.cs

@@ -13,8 +13,8 @@ namespace Tellurium.MvcPages.WebPages.WebForms
     /// </summary>
     public class WebForm : PageFragment
     {
-        private readonly int numberOfSetRetries;
-        private readonly AfterFieldValueSet afterFieldValueSet;
+        private int numberOfSetRetries;
+        private AfterFieldValueSet afterFieldValueSet;
         private List<IFormInputAdapter> SupportedInputs { get; set; }
 
         public WebForm(IWebElement webElement, RemoteWebDriver driver, List<IFormInputAdapter> supportedInputs, int numberOfSetRetries, AfterFieldValueSet afterFieldValueSet = AfterFieldValueSet.Nothing) : base(driver, webElement)
@@ -24,6 +24,18 @@ public WebForm(IWebElement webElement, RemoteWebDriver driver, List<IFormInputAd
             SupportedInputs = supportedInputs;
         }
 
+        public WebForm()
+        {
+        }
+
+        public void Init(IWebElement webElement, RemoteWebDriver driver, List<IFormInputAdapter> supportedInputs, int numberOfSetRetries, AfterFieldValueSet afterFieldValueSet = AfterFieldValueSet.Nothing)
+        {
+            this.numberOfSetRetries = numberOfSetRetries;
+            this.afterFieldValueSet = afterFieldValueSet;
+            SupportedInputs = supportedInputs;
+            base.Init(driver, webElement);
+        }
+
         /// <summary>
         /// Set value for field indicated by field name
         /// </summary>