Add unique_ptr<TaskRunner>

include/ftxui/component/screen_interactive.hpp

@@ -26,6 +26,10 @@ struct Event;
 using Component = std::shared_ptr<ComponentBase>;
 class ScreenInteractivePrivate;
 
+namespace task {
+  class TaskRunner;
+}
+
 /// @brief ScreenInteractive is a `Screen` that can handle events, run a main
 /// loop, and manage components.
 ///
@@ -40,6 +44,9 @@ class ScreenInteractive : public Screen {
   static ScreenInteractive FitComponent();
   static ScreenInteractive TerminalOutput();
 
+  // Destructor.
+  ~ScreenInteractive();
+
   // Options. Must be called before Loop().
   void TrackMouse(bool enable = true);
 
@@ -156,6 +163,8 @@ class ScreenInteractive : public Screen {
   std::unique_ptr<Selection> selection_;
   std::function<void()> selection_on_change_;
 
+  std::unique_ptr<task::TaskRunner> task_runner_;
+
   friend class Loop;
 
  public:

include/ftxui/screen/image.hpp

@@ -20,6 +20,9 @@ class Image {
   Image() = delete;
   Image(int dimx, int dimy);
 
+  // Destructor:
+  virtual ~Image() = default;
+
   // Access a character in the grid at a given position.
   std::string& at(int x, int y);
   const std::string& at(int x, int y) const;

include/ftxui/screen/screen.hpp

@@ -11,7 +11,6 @@
 
 #include "ftxui/screen/image.hpp"     // for Pixel, Image
 #include "ftxui/screen/terminal.hpp"  // for Dimensions
-#include "ftxui/util/autoreset.hpp"   // for AutoReset
 
 namespace ftxui {
 
@@ -31,6 +30,9 @@ class Screen : public Image {
   static Screen Create(Dimensions dimension);
   static Screen Create(Dimensions width, Dimensions height);
 
+  // Destructor:
+  ~Screen() override = default;
+
   std::string ToString() const;
 
   // Print the Screen on to the terminal.

src/ftxui/component/screen_interactive.cpp

@@ -30,11 +30,12 @@
 #include "ftxui/component/loop.hpp"            // for Loop
 #include "ftxui/component/receiver.hpp"  // for ReceiverImpl, Sender, MakeReceiver, SenderImpl, Receiver
 #include "ftxui/component/terminal_input_parser.hpp"  // for TerminalInputParser
-#include "ftxui/dom/node.hpp"                         // for Node, Render
-#include "ftxui/dom/requirement.hpp"                  // for Requirement
-#include "ftxui/screen/pixel.hpp"                     // for Pixel
-#include "ftxui/screen/terminal.hpp"                  // for Dimensions, Size
-#include "ftxui/screen/util.hpp"                      // for util::clamp
+#include "ftxui/core/task_runner.hpp"
+#include "ftxui/dom/node.hpp"         // for Node, Render
+#include "ftxui/dom/requirement.hpp"  // for Requirement
+#include "ftxui/screen/pixel.hpp"     // for Pixel
+#include "ftxui/screen/terminal.hpp"  // for Dimensions, Size
+#include "ftxui/screen/util.hpp"      // for util::clamp
 
 #if defined(_WIN32)
 #define DEFINE_CONSOLEV2_PROPERTIES
@@ -417,6 +418,8 @@ ScreenInteractive ScreenInteractive::TerminalOutput() {
   };
 }
 
+ScreenInteractive::~ScreenInteractive() = default;
+
 /// Create a ScreenInteractive whose width and height match the component being
 /// drawn.
 // static