We can catch mouse events

include/ftxui/component/screen_interactive.hpp

@@ -26,6 +26,15 @@ struct Event;
 using Component = std::shared_ptr<ComponentBase>;
 class ScreenInteractivePrivate;
 
+typedef struct {
+
+  uint16_t startx = 0;
+  uint16_t endx = 0;
+  uint16_t starty = 0;
+  uint16_t endy = 0;
+  bool changed = false;
+} Region;
+
 class ScreenInteractive : public Screen {
  public:
   // Constructors:
@@ -82,6 +91,8 @@ class ScreenInteractive : public Screen {
   void RunOnceBlocking(Component component);
 
   void HandleTask(Component component, Task& task);
+  bool selectableCatchEvent(Event event);
+  std::string getSelection(void);
   void Draw(Component component);
   void ResetCursorPosition();
 
@@ -126,6 +137,8 @@ class ScreenInteractive : public Screen {
   bool force_handle_ctrl_c_ = true;
   bool force_handle_ctrl_z_ = true;
 
+  Region selectedRegion;
+
   // The style of the cursor to restore on exit.
   int cursor_reset_shape_ = 1;
 

include/ftxui/dom/elements.hpp

@@ -116,6 +116,9 @@ Element hyperlink(std::string link, Element child);
 Element selectable(Element child);
 Decorator selectable(void);
 
+// -- Selection --
+std::string getSelection(void);
+
 // --- Layout is
 // Horizontal, Vertical or stacked set of elements.
 Element hbox(Elements);

include/ftxui/screen/pixel.hpp

@@ -21,6 +21,7 @@ struct Pixel {
         underlined(false),
         underlined_double(false),
         strikethrough(false),
+        selectable(false),
         automerge(false) {}
 
   // A bit field representing the style:
@@ -30,6 +31,7 @@ struct Pixel {
   bool inverted : 1;
   bool underlined : 1;
   bool underlined_double : 1;
+  bool selectable : 1;
   bool strikethrough : 1;
   bool automerge : 1;