Merge branch 'develop' into v1_showcase

Terminal.Gui/ConsoleDrivers/CursesDriver/CursesDriver.cs

@@ -142,6 +142,7 @@ namespace Terminal.Gui {
 			Curses.raw ();
 			Curses.noecho ();
 			Curses.refresh ();
+			ProcessWinChange ();
 		}
 
 		private void ProcessWinChange ()

Terminal.Gui/ConsoleDrivers/CursesDriver/UnixMainLoop.cs

@@ -82,7 +82,6 @@ namespace Terminal.Gui {
 		bool poll_dirty = true;
 		int [] wakeupPipes = new int [2];
 		static IntPtr ignore = Marshal.AllocHGlobal (1);
-		static IntPtr readHandle = Marshal.AllocHGlobal (1);
 		MainLoop mainLoop;
 		bool winChanged;
 
@@ -97,8 +96,8 @@ namespace Terminal.Gui {
 		{
 			this.mainLoop = mainLoop;
 			pipe (wakeupPipes);
-			AddWatch (wakeupPipes [1], Condition.PollIn, ml => {
-				read (wakeupPipes [1], ignore, readHandle);
+			AddWatch (wakeupPipes [0], Condition.PollIn, ml => {
+				read (wakeupPipes [1], ignore, (IntPtr)1);
 				return true;
 			});
 		}
@@ -176,6 +175,18 @@ namespace Terminal.Gui {
 			if (mainLoop.timeouts.Count > 0) {
 				pollTimeout = (int)((mainLoop.timeouts.Keys [0] - now) / TimeSpan.TicksPerMillisecond);
 				if (pollTimeout < 0) {
+					// This avoids 'poll' waiting infinitely if 'pollTimeout < 0' until some action is detected
+					// This can occur after IMainLoopDriver.Wakeup is executed where the pollTimeout is less than 0
+					// and no event occurred in elapsed time when the 'poll' is start running again.
+					/*
+					The 'poll' function in the C standard library uses a signed integer as the timeout argument, where:
+
+					    - A positive value specifies a timeout in milliseconds.
+					    - A value of 0 means the poll function will return immediately, checking for events and not waiting.
+					    - A value of -1 means the poll function will wait indefinitely until an event occurs or an error occurs.
+					    - A negative value other than -1 typically indicates an error.
+					 */
+					pollTimeout = 0;
 					return true;
 				}
 			} else

Terminal.Gui/Views/ComboBox.cs

@@ -5,10 +5,10 @@
 //   Ross Ferguson (ross.c.ferguson@btinternet.com)
 //
 
+using NStack;
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using NStack;
 
 namespace Terminal.Gui {
 	/// <summary>
@@ -39,10 +39,7 @@ namespace Terminal.Gui {
 
 			private void Initialize (ComboBox container, bool hideDropdownListOnClick)
 			{
-				if (container == null)
-					throw new ArgumentNullException ("ComboBox container cannot be null.", nameof (container));
-
-				this.container = container;
+				this.container = container ?? throw new ArgumentNullException (nameof(container), "ComboBox container cannot be null.");
 				HideDropdownListOnClick = hideDropdownListOnClick;
 			}
 
@@ -236,7 +233,7 @@ namespace Terminal.Gui {
 		readonly TextField search;
 		readonly ComboListView listview;
 		bool autoHide = true;
-		int minimumHeight = 2;
+		readonly int minimumHeight = 2;
 
 		/// <summary>
 		/// Public constructor
@@ -721,7 +718,19 @@ namespace Terminal.Gui {
 				return text;
 			}
 			set {
-				search.Text = text = value;
+				SetSearchText (value);
+			}
+		}
+
+		/// <summary>
+		/// Current search text 
+		/// </summary>
+		public ustring SearchText {
+			get {
+				return search.Text;
+			}
+			set {
+				SetSearchText (value);
 			}
 		}
 
@@ -775,7 +784,7 @@ namespace Terminal.Gui {
 		private void Reset (bool keepSearchText = false)
 		{
 			if (!keepSearchText) {
-				search.Text = text = "";
+				SetSearchText (string.Empty);
 			}
 
 			ResetSearchSet ();
@@ -788,6 +797,11 @@ namespace Terminal.Gui {
 			}
 		}
 
+		private void SetSearchText (ustring value)
+		{
+			search.Text = text = value;
+		}
+
 		private void ResetSearchSet (bool noCopy = false)
 		{
 			searchset.Clear ();
@@ -843,7 +857,7 @@ namespace Terminal.Gui {
 			listview.SetSource (searchset);
 			listview.Clear (); // Ensure list shrinks in Dialog as you type
 			listview.Height = CalculatetHeight ();
-			this.SuperView?.BringSubviewToFront (this);
+			SuperView?.BringSubviewToFront (this);
 		}
 
 		/// <summary>
@@ -857,7 +871,7 @@ namespace Terminal.Gui {
 				OnOpenSelectedItem ();
 			}
 			var rect = listview.ViewToScreen (listview.Bounds);
-			Reset (SelectedItem > -1);
+			Reset (keepSearchText: true);
 			listview.Clear (rect);
 			listview.TabStop = false;
 			SuperView?.SendSubviewToBack (this);

UICatalog/Scenarios/Threading.cs

@@ -157,7 +157,7 @@ namespace UICatalog.Scenarios {
 					LogJob ($"Returned from task Thread:{Thread.CurrentThread.ManagedThreadId} {DateTime.Now}");
 					_itemsList.SetSource (items);
 					LogJob ($"Finished populate list view Thread:{Thread.CurrentThread.ManagedThreadId} {DateTime.Now}");
-					_btnActionCancel.Text = "Load Items";
+					_btnActionCancel.Text = "Cancelable Load Items";
 				} else {
 					LogJob ("Task was canceled!");
 				}