Added Home, End, PageUp, PageDown events.

Added handling for Home and End for input component

include/ftxui/component/event.hpp

@@ -44,6 +44,12 @@ struct Event {
   static const Event TabReverse;
   static const Event F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12;
 
+  static const Event Home;
+  static const Event End;
+
+  static const Event PageUp;
+  static const Event PageDown;
+
   // --- Custom ---
   static Event Custom;
 
@@ -53,6 +59,7 @@ struct Event {
   const std::string& input() const { return input_; }
 
   bool operator==(const Event& other) const { return input_ == other.input_; }
+  bool operator!=(const Event& other) const { return !operator==(other); }
 
   //--- State section ----------------------------------------------------------
  private:

src/ftxui/component/event.cpp

@@ -62,6 +62,11 @@ const Event Event::F9 = Event::Special("\x1B[20~");
 const Event Event::F10 = Event::Special("\x1B[21~");
 const Event Event::F11 = Event::Special("\x1B[21~");  // Doesn't exist
 const Event Event::F12 = Event::Special("\x1B[24~");
+const Event Event::Home = Event::Special({27, 91, 72});
+const Event Event::End = Event::Special({27, 91, 70});
+const Event Event::PageUp = Event::Special({27, 91, 53, 126});
+const Event Event::PageDown = Event::Special({27, 91, 54, 126});
+
 Event Event::Custom = Event::Special({0});
 
 }  // namespace ftxui

src/ftxui/component/input.cpp

@@ -85,6 +85,16 @@ bool Input::OnEvent(Event event) {
     return true;
   }
 
+  if (event == Event::Home) {
+    cursor_position = 0;
+    return true;
+  }
+
+  if (event == Event::End) {
+    cursor_position = (int)content.size();
+    return true;
+  }
+
   // Content
   if (event.is_character()) {
     content.insert(cursor_position, 1, event.character());