Use IWYU.

src/ftxui/component/button.cpp

@@ -1,7 +1,11 @@
-#include "ftxui/component/button.hpp"
-#include "ftxui/component/screen_interactive.hpp"
+#include <functional>  // for function
+#include <memory>      // for shared_ptr
 
-#include <functional>
+#include "ftxui/component/button.hpp"
+#include "ftxui/component/captured_mouse.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 {
 
@@ -12,7 +16,7 @@ Element Button::Render() {
 
 bool Button::OnEvent(Event event) {
   if (event.is_mouse() && box_.Contain(event.mouse().x, event.mouse().y)) {
-    if (!event.screen()->CaptureMouse())
+    if (!CaptureMouse(event))
       return false;
 
     TakeFocus();

src/ftxui/component/checkbox.cpp

@@ -1,7 +1,11 @@
-#include "ftxui/component/checkbox.hpp"
-#include "ftxui/component/screen_interactive.hpp"
+#include <functional>  // for function
+#include <memory>      // for shared_ptr
 
-#include <functional>
+#include "ftxui/component/captured_mouse.hpp"  // for CapturedMouse
+#include "ftxui/component/checkbox.hpp"
+#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 {
 
@@ -27,7 +31,7 @@ bool CheckBox::OnEvent(Event event) {
 }
 
 bool CheckBox::OnMouseEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+    if (!CaptureMouse(event))
     return false;
   if (!box_.Contain(event.mouse().x, event.mouse().y))
     return false;

src/ftxui/component/component.cpp

@@ -1,11 +1,20 @@
 #include "ftxui/component/component.hpp"
 
-#include <assert.h>
-
 #include <algorithm>
 
+#include "ftxui/component/captured_mouse.hpp"
+#include "ftxui/component/event.hpp"
+#include "ftxui/component/screen_interactive.hpp"
+
 namespace ftxui {
 
+namespace {
+class CaptureMouseImpl : public CapturedMouseInterface {
+ public:
+  ~CaptureMouseImpl() override {}
+};
+}
+
 Component::~Component() {
   Detach();
 }
@@ -97,6 +106,16 @@ void Component::TakeFocus() {
   }
 }
 
+/// @brief Take the CapturedMouse if available. There is only one component of
+/// them. It represents a component taking priority over others.
+/// @argument event
+/// @ingroup component
+CapturedMouse Component::CaptureMouse(const Event& event) {
+  if (!event.screen_)
+    return std::make_unique<CaptureMouseImpl>();
+  return event.screen_->CaptureMouse();
+}
+
 /// @brief Detach this children from its parent.
 /// @see Attach
 /// @see Detach

src/ftxui/component/container.cpp

@@ -1,6 +1,8 @@
 #include "ftxui/component/container.hpp"
 
+#include <stddef.h>
 #include <algorithm>
+#include <vector>
 
 namespace ftxui {
 

src/ftxui/component/container_test.cpp

@@ -1,6 +1,10 @@
-#include "ftxui/component/container.hpp"
+#include <gtest/gtest-message.h>    // for Message
+#include <gtest/gtest-test-part.h>  // for TestPartResult, SuiteApiResolver
+#include <memory>                   // for allocator
 
-#include "gtest/gtest.h"
+#include "ftxui/component/container.hpp"
+#include "ftxui/screen/box.hpp"     // for ftxui
+#include "gtest/gtest_pred_impl.h"  // for AssertionResult, EXPECT_EQ, EXPEC...
 
 using namespace ftxui;
 

src/ftxui/component/event.cpp

@@ -1,6 +1,6 @@
 #include "ftxui/component/event.hpp"
 
-#include <iostream>
+#include "ftxui/component/mouse.hpp"
 #include "ftxui/screen/string.hpp"
 
 namespace ftxui {

src/ftxui/component/input.cpp

@@ -1,9 +1,11 @@
 #include "ftxui/component/input.hpp"
-#include "ftxui/component/screen_interactive.hpp"
 
 #include <algorithm>
+#include <memory>
 
-#include "ftxui/screen/string.hpp"
+#include "ftxui/component/captured_mouse.hpp"
+#include "ftxui/component/mouse.hpp"
+#include "ftxui/component/screen_interactive.hpp"
 
 namespace ftxui {
 
@@ -103,7 +105,7 @@ bool Input::OnEvent(Event event) {
 }
 
 bool Input::OnMouseEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   if (!input_box_.Contain(event.mouse().x, event.mouse().y))
     return false;

src/ftxui/component/menu.cpp

@@ -1,8 +1,13 @@
 #include "ftxui/component/menu.hpp"
-#include "ftxui/component/screen_interactive.hpp"
 
+#include <stddef.h>
 #include <algorithm>
-#include <iostream>
+#include <memory>
+#include <utility>
+
+#include "ftxui/component/captured_mouse.hpp"
+#include "ftxui/component/mouse.hpp"
+#include "ftxui/component/screen_interactive.hpp"
 
 namespace ftxui {
 
@@ -28,7 +33,7 @@ Element Menu::Render() {
 }
 
 bool Menu::OnEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   if (event.is_mouse())
     return OnMouseEvent(event);
@@ -63,7 +68,7 @@ bool Menu::OnEvent(Event event) {
 }
 
 bool Menu::OnMouseEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   for (int i = 0; i < boxes_.size(); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))

src/ftxui/component/radiobox.cpp

@@ -1,8 +1,14 @@
 #include "ftxui/component/radiobox.hpp"
-#include "ftxui/component/screen_interactive.hpp"
 
+#include <stddef.h>
 #include <algorithm>
 #include <functional>
+#include <memory>
+#include <utility>
+
+#include "ftxui/component/captured_mouse.hpp"
+#include "ftxui/component/mouse.hpp"
+#include "ftxui/component/screen_interactive.hpp"
 
 namespace ftxui {
 
@@ -13,8 +19,9 @@ Element RadioBox::Render() {
   for (size_t i = 0; i < entries.size(); ++i) {
     auto style =
         (focused == int(i) && is_focused) ? focused_style : unfocused_style;
-    auto focus_management =
-        (focused != int(i)) ? nothing : is_focused ? focus : select;
+    auto focus_management = (focused != int(i)) ? nothing
+                            : is_focused        ? focus
+                                                : select;
 
     const std::wstring& symbol = selected == int(i) ? checked : unchecked;
     elements.push_back(hbox(text(symbol), text(entries[i]) | style) |
@@ -24,7 +31,7 @@ Element RadioBox::Render() {
 }
 
 bool RadioBox::OnEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   if (event.is_mouse())
     return OnMouseEvent(event);
@@ -58,7 +65,7 @@ bool RadioBox::OnEvent(Event event) {
 }
 
 bool RadioBox::OnMouseEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   for (int i = 0; i < boxes_.size(); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))

src/ftxui/component/radiobox_test.cpp

@@ -1,6 +1,10 @@
-#include "ftxui/component/radiobox.hpp"
+#include <gtest/gtest-message.h>  // for Message
+#include <gtest/gtest-test-part.h>  // for TestPartResult, SuiteApiResolver, TestFactoryImpl
 
-#include "gtest/gtest.h"
+#include "ftxui/component/event.hpp"  // for Event, Event::ArrowDown, Event::ArrowUp, Event::Tab, Event::TabReverse
+#include "ftxui/component/mouse.hpp"  // for ftxui
+#include "ftxui/component/radiobox.hpp"
+#include "gtest/gtest_pred_impl.h"  // for EXPECT_EQ, Test, TEST
 
 using namespace ftxui;
 

src/ftxui/component/receiver_test.cpp

@@ -1,8 +1,10 @@
+#include <gtest/gtest-message.h>    // for Message
+#include <gtest/gtest-test-part.h>  // for TestPartResult
+#include <thread>                   // for thread
+#include <utility>                  // for move
+
 #include "ftxui/component/receiver.hpp"
-
-#include <thread>
-
-#include "gtest/gtest.h"
+#include "gtest/gtest_pred_impl.h"  // for AssertionResult, Test, EXPECT_EQ
 
 using namespace ftxui;
 

src/ftxui/component/screen_interactive.cpp

@@ -1,19 +1,24 @@
 #include "ftxui/component/screen_interactive.hpp"
 
-#include <stdio.h>
+#include <stdio.h>    // for fileno, stdin
+#include <algorithm>  // for copy, max, min
+#include <csignal>    // for signal, SIGINT
+#include <cstdlib>    // for exit, NULL
+#include <iostream>   // for cout, ostream
+#include <stack>      // for stack
+#include <thread>     // for thread
+#include <utility>    // for move
+#include <vector>     // for vector
 
-#include <algorithm>
-#include <csignal>
-#include <cstdlib>
-#include <iostream>
-#include <stack>
-#include <thread>
-
-#include "ftxui/component/captured_mouse.hpp"
-#include "ftxui/component/component.hpp"
-#include "ftxui/component/terminal_input_parser.hpp"
-#include "ftxui/screen/string.hpp"
-#include "ftxui/screen/terminal.hpp"
+#include "ftxui/component/captured_mouse.hpp"         // for CapturedMouse
+#include "ftxui/component/component.hpp"              // for Component
+#include "ftxui/component/event.hpp"                  // for Event
+#include "ftxui/component/mouse.hpp"                  // for Mouse
+#include "ftxui/component/receiver.hpp"               // for ReceiverImpl
+#include "ftxui/component/terminal_input_parser.hpp"  // for TerminalInputPa...
+#include "ftxui/dom/node.hpp"                         // for Node, Render
+#include "ftxui/dom/requirement.hpp"                  // for Requirement
+#include "ftxui/screen/terminal.hpp"                  // for Terminal::Dimen...
 
 #if defined(_WIN32)
 #define DEFINE_CONSOLEV2_PROPERTIES
@@ -26,8 +31,9 @@
 #error Must be compiled in UNICODE mode
 #endif
 #else
-#include <termios.h>
-#include <unistd.h>
+#include <sys/select.h>  // for select, FD_ISSET
+#include <termios.h>     // for tcsetattr, tcge...
+#include <unistd.h>      // for STDIN_FILENO, read
 #endif
 
 // Quick exit is missing in standard CLang headers
@@ -48,8 +54,7 @@ constexpr int timeout_milliseconds = 20;
 constexpr int timeout_microseconds = timeout_milliseconds * 1000;
 #if defined(_WIN32)
 
-void EventListener(std::atomic<bool>* quit,
-                        Sender<Event> out) {
+void EventListener(std::atomic<bool>* quit, Sender<Event> out) {
   auto console = GetStdHandle(STD_INPUT_HANDLE);
   auto parser = TerminalInputParser(out->Clone());
   while (!*quit) {
@@ -69,8 +74,7 @@ void EventListener(std::atomic<bool>* quit,
 
     std::vector<INPUT_RECORD> records{number_of_events};
     DWORD number_of_events_read = 0;
-    ReadConsoleInput(console, records.data(),
-                     (DWORD)records.size(),
+    ReadConsoleInput(console, records.data(), (DWORD)records.size(),
                      &number_of_events_read);
     records.resize(number_of_events_read);
 
@@ -106,7 +110,7 @@ void EventListener(std::atomic<bool>* quit, Sender<Event> out) {
 
   char c;
   while (!*quit) {
-    while(read(STDIN_FILENO, &c, 1), c)
+    while (read(STDIN_FILENO, &c, 1), c)
       parser.Add(c);
 
     emscripten_sleep(1);
@@ -115,7 +119,7 @@ void EventListener(std::atomic<bool>* quit, Sender<Event> out) {
 }
 
 #else
-#include <sys/time.h>
+#include <sys/time.h>  // for timeval
 
 int CheckStdinReady(int usec_timeout) {
   timeval tv = {0, usec_timeout};
@@ -219,8 +223,7 @@ void OnResize(int /* signal */) {
 
 class CapturedMouseImpl : public CapturedMouseInterface {
  public:
-  CapturedMouseImpl(std::function<void(void)> callback)
-      : callback_(callback) {}
+  CapturedMouseImpl(std::function<void(void)> callback) : callback_(callback) {}
   ~CapturedMouseImpl() override { callback_(); }
 
  private:
@@ -366,7 +369,7 @@ void ScreenInteractive::Loop(Component* component) {
   });
 
   enable({
-      //DECMode::kMouseVt200,
+      // DECMode::kMouseVt200,
       DECMode::kMouseAnyEvent,
       DECMode::kMouseUtf8,
       DECMode::kMouseSgrExtMode,
@@ -406,7 +409,7 @@ void ScreenInteractive::Loop(Component* component) {
       event.mouse().y -= cursor_y_;
     }
 
-    event.SetScreen(this);
+    event.screen_ = this;
     component->OnEvent(event);
   }
 

src/ftxui/component/slider.cpp

@@ -1,10 +1,18 @@
 #include "ftxui/component/slider.hpp"
+
+#include <memory>
+#include <utility>
+
 #include "ftxui/component/captured_mouse.hpp"
+#include "ftxui/component/mouse.hpp"
 #include "ftxui/component/screen_interactive.hpp"
+#include "ftxui/dom/elements.hpp"
+#include "ftxui/screen/box.hpp"
+#include "ftxui/screen/color.hpp"
 
 namespace ftxui {
 
-template<class T>
+template <class T>
 class SliderImpl : public Component {
  public:
   SliderImpl(std::wstring label, T* value, T min, T max, T increment)
@@ -55,7 +63,7 @@ class SliderImpl : public Component {
     }
 
     if (box_.Contain(event.mouse().x, event.mouse().y) &&
-        event.screen()->CaptureMouse()) {
+        CaptureMouse(event)) {
       TakeFocus();
     }
 
@@ -63,7 +71,7 @@ class SliderImpl : public Component {
         event.mouse().motion == Mouse::Pressed &&
         gauge_box_.Contain(event.mouse().x, event.mouse().y) &&
         !captured_mouse_) {
-      captured_mouse_ = event.screen()->CaptureMouse();
+      captured_mouse_ = CaptureMouse(event);
     }
 
     if (captured_mouse_) {
@@ -105,3 +113,7 @@ template ComponentPtr Slider(std::wstring label,
                              float increment);
 
 }  // namespace ftxui
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.

src/ftxui/component/terminal_input_parser.cpp

@@ -1,5 +1,8 @@
 #include "ftxui/component/terminal_input_parser.hpp"
 
+#include <utility>
+#include "ftxui/component/event.hpp"
+
 namespace ftxui {
 
 TerminalInputParser::TerminalInputParser(Sender<Event> out)
@@ -61,7 +64,6 @@ void TerminalInputParser::Send(TerminalInputParser::Output output) {
       return;
   }
   // NOT_REACHED().
-
 }
 
 TerminalInputParser::Output TerminalInputParser::Parse() {
@@ -227,3 +229,7 @@ TerminalInputParser::Output TerminalInputParser::ParseCursorReporting(
 }
 
 }  // namespace ftxui
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.

src/ftxui/component/terminal_input_parser.hpp

@@ -1,10 +1,13 @@
 #ifndef FTXUI_COMPONENT_TERMINAL_INPUT_PARSER
 #define FTXUI_COMPONENT_TERMINAL_INPUT_PARSER
 
-#include "ftxui/component/event.hpp"
-#include "ftxui/component/receiver.hpp"
+#include <memory>  // for unique_ptr
+#include <string>  // for string
+#include <vector>  // for vector
 
-#include <string>
+#include "ftxui/component/event.hpp"     // IWYU pragma: keep
+#include "ftxui/component/mouse.hpp"     // for Mouse
+#include "ftxui/component/receiver.hpp"  // for SenderImpl
 
 namespace ftxui {
 

src/ftxui/component/terminal_input_parser_test.cpp

@@ -1,7 +1,9 @@
-#include "ftxui/component/terminal_input_parser.hpp"
-#include "ftxui/component/receiver.hpp"
+#include <gtest/gtest-message.h>    // for Message
+#include <gtest/gtest-test-part.h>  // for TestPartResult
 
-#include "gtest/gtest.h"
+#include "ftxui/component/receiver.hpp"  // for MakeReceiver, ReceiverImpl
+#include "ftxui/component/terminal_input_parser.hpp"
+#include "gtest/gtest_pred_impl.h"  // for AssertionResult, Test, Suite...
 
 using namespace ftxui;
 

src/ftxui/component/toggle.cpp

@@ -1,7 +1,12 @@
-#include "ftxui/component/toggle.hpp"
-#include "ftxui/component/screen_interactive.hpp"
+#include <stddef.h>   // for size_t
+#include <algorithm>  // for max, min
+#include <memory>     // for shared_ptr, alloca...
+#include <utility>    // for move
 
-#include <algorithm>
+#include "ftxui/component/captured_mouse.hpp"      // for CapturedMouse
+#include "ftxui/component/mouse.hpp"               // for Mouse, Mouse::Left
+#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
+#include "ftxui/component/toggle.hpp"
 
 namespace ftxui {
 
@@ -60,7 +65,7 @@ bool Toggle::OnEvent(Event event) {
 }
 
 bool Toggle::OnMouseEvent(Event event) {
-  if (!event.screen()->CaptureMouse())
+  if (!CaptureMouse(event))
     return false;
   for (int i = 0; i < boxes_.size(); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))

src/ftxui/component/toggle_test.cpp

@@ -1,6 +1,10 @@
-#include "ftxui/component/toggle.hpp"
+#include <gtest/gtest-message.h>  // for Message
+#include <gtest/gtest-test-part.h>  // for TestPartResult, SuiteApiResolver, TestFactoryImpl
 
-#include "gtest/gtest.h"
+#include "ftxui/component/event.hpp"  // for Event, Event::ArrowLeft, Event::ArrowRight, Event::Return, Event::Tab, Event::TabReverse
+#include "ftxui/component/mouse.hpp"  // for ftxui
+#include "ftxui/component/toggle.hpp"
+#include "gtest/gtest_pred_impl.h"  // for AssertionResult, EXPECT_EQ, Test, EXPECT_TRUE, EXPECT_FALSE, TEST
 
 using namespace ftxui;