Remove button.hpp

src/ftxui/component/button.cpp

@@ -1,14 +1,65 @@
 #include <functional>  // for function
 #include <memory>      // for shared_ptr
 
-#include "ftxui/component/button.hpp"
 #include "ftxui/component/captured_mouse.hpp"  // for CapturedMouse
+#include "ftxui/component/component.hpp"       // for CapturedMouse
 #include "ftxui/component/event.hpp"           // for Event, Event::Return
 #include "ftxui/component/mouse.hpp"  // for Mouse, Mouse::Left, Mouse::Pressed
 #include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
 
 namespace ftxui {
 
+namespace {
+/// @brief A button. An action is associated to the click event.
+/// @ingroup dom
+class ButtonBase : public ComponentBase {
+ public:
+  ButtonBase(ConstStringRef label,
+             std::function<void()> on_click,
+             ConstRef<ButtonOption> option)
+      : label_(label), on_click_(on_click), option_(std::move(option)) {}
+
+  ~ButtonBase() override = default;
+
+  // Component implementation:
+  Element Render() override {
+    auto style = Focused() ? inverted : nothing;
+    auto my_border = option_->border ? border : nothing;
+    return text(*label_) | my_border | style | reflect(box_);
+  }
+
+  bool OnEvent(Event event) override {
+    if (event.is_mouse() && box_.Contain(event.mouse().x, event.mouse().y)) {
+      if (!CaptureMouse(event))
+        return false;
+
+      TakeFocus();
+
+      if (event.mouse().button == Mouse::Left &&
+          event.mouse().motion == Mouse::Pressed) {
+        on_click_();
+        return true;
+      }
+
+      return false;
+    }
+
+    if (event == Event::Return) {
+      on_click_();
+      return true;
+    }
+    return false;
+  }
+
+ private:
+  ConstStringRef label_;
+  std::function<void()> on_click_;
+  Box box_;
+  ConstRef<ButtonOption> option_;
+};
+
+}  // namespace
+
 /// @brief Draw a button. Execute a function when clicked.
 /// @param label The label of the button.
 /// @param on_click The action to execute when clicked.
@@ -37,45 +88,6 @@ Component Button(ConstStringRef label,
   return Make<ButtonBase>(label, std::move(on_click), std::move(option));
 }
 
-// static
-ButtonBase* ButtonBase::From(Component component) {
-  return static_cast<ButtonBase*>(component.get());
-}
-
-ButtonBase::ButtonBase(ConstStringRef label,
-                       std::function<void()> on_click,
-                       ConstRef<ButtonOption> option)
-    : label_(label), on_click_(on_click), option_(std::move(option)) {}
-
-Element ButtonBase::Render() {
-  auto style = Focused() ? inverted : nothing;
-  auto my_border = option_->border ? border : nothing;
-  return text(*label_) | my_border | style | reflect(box_);
-}
-
-bool ButtonBase::OnEvent(Event event) {
-  if (event.is_mouse() && box_.Contain(event.mouse().x, event.mouse().y)) {
-    if (!CaptureMouse(event))
-      return false;
-
-    TakeFocus();
-
-    if (event.mouse().button == Mouse::Left &&
-        event.mouse().motion == Mouse::Pressed) {
-      on_click_();
-      return true;
-    }
-
-    return false;
-  }
-
-  if (event == Event::Return) {
-    on_click_();
-    return true;
-  }
-  return false;
-}
-
 }  // namespace ftxui
 
 // Copyright 2020 Arthur Sonzogni. All rights reserved.