Fix #46: Clear-Host causes error while debugging

This change updates the SessionPSHostRawUserInterface class to get rid of
most instances of throwing NotImplementedException.  When debugging, if a
script invokes a method that causes the raw UI interface to be touched,
those methods shouldn't cause errors to appear.  This change reduces the
possibility of the user seeing errors due to this reason.

Author: daviwil

src/PowerShellEditorServices/Session/SessionPSHostRawUserInterface.cs

@@ -3,6 +3,7 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+using Microsoft.PowerShell.EditorServices.Utility;
 using System;
 using System.Management.Automation.Host;
 
@@ -80,59 +81,35 @@ public override Size BufferSize
         /// </summary>
         public override Coordinates CursorPosition
         {
-            get
-            {
-                throw new System.NotImplementedException();
-            }
-            set
-            {
-                throw new System.NotImplementedException();
-            }
+            get;
+            set;
         }
 
         /// <summary>
         /// Gets or sets the size of the cursor in the console buffer.
         /// </summary>
         public override int CursorSize
         {
-            get
-            {
-                throw new System.NotImplementedException();
-            }
-            set
-            {
-                throw new System.NotImplementedException();
-            }
+            get;
+            set;
         }
 
         /// <summary>
         /// Gets or sets the position of the console's window.
         /// </summary>
         public override Coordinates WindowPosition
         {
-            get
-            {
-                throw new System.NotImplementedException();
-            }
-            set
-            {
-                throw new System.NotImplementedException();
-            }
+            get;
+            set;
         }
 
         /// <summary>
         /// Gets or sets the size of the console's window.
         /// </summary>
         public override Size WindowSize
         {
-            get
-            {
-                throw new System.NotImplementedException();
-            }
-            set
-            {
-                throw new System.NotImplementedException();
-            }
+            get;
+            set;
         }
 
         /// <summary>
@@ -149,23 +126,23 @@ public override string WindowTitle
         /// </summary>
         public override bool KeyAvailable
         {
-            get { throw new System.NotImplementedException(); }
+            get { return false; }
         }
 
         /// <summary>
         /// Gets the maximum physical size of the console window.
         /// </summary>
         public override Size MaxPhysicalWindowSize
         {
-            get { throw new System.NotImplementedException(); }
+            get { return new Size(80, 20); }
         }
 
         /// <summary>
         /// Gets the maximum size of the console window.
         /// </summary>
         public override Size MaxWindowSize
         {
-            get { throw new System.NotImplementedException(); }
+            get { return new Size(80, 20); }
         }
 
         /// <summary>
@@ -175,6 +152,10 @@ public override Size MaxWindowSize
         /// <returns>A KeyInfo struct with details about the current keypress.</returns>
         public override KeyInfo ReadKey(ReadKeyOptions options)
         {
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.ReadKey was called");
+
             throw new System.NotImplementedException();
         }
 
@@ -183,7 +164,9 @@ public override KeyInfo ReadKey(ReadKeyOptions options)
         /// </summary>
         public override void FlushInputBuffer()
         {
-            throw new System.NotImplementedException();
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.FlushInputBuffer was called");
         }
 
         /// <summary>
@@ -193,6 +176,10 @@ public override void FlushInputBuffer()
         /// <returns>A BufferCell array with the requested buffer contents.</returns>
         public override BufferCell[,] GetBufferContents(Rectangle rectangle)
         {
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.GetBufferContents was called");
+
             throw new System.NotImplementedException();
         }
 
@@ -209,7 +196,9 @@ public override void ScrollBufferContents(
             Rectangle clip, 
             BufferCell fill)
         {
-            throw new System.NotImplementedException();
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.ScrollBufferContents was called");
         }
 
         /// <summary>
@@ -221,7 +210,9 @@ public override void SetBufferContents(
             Rectangle rectangle, 
             BufferCell fill)
         {
-            throw new System.NotImplementedException();
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.SetBufferContents was called");
         }
 
         /// <summary>
@@ -233,7 +224,9 @@ public override void SetBufferContents(
             Coordinates origin, 
             BufferCell[,] contents)
         {
-            throw new System.NotImplementedException();
+            Logger.Write(
+                LogLevel.Warning,
+                "PSHostRawUserInterface.SetBufferContents was called");
         }
 
         #endregion