Merge e85d655b4d into 346f751527

Refactored the POSIX piped input handling to avoid redirecting stdin.
Instead, it now directly opens and reads from /dev/tty for keyboard input
when stdin is piped, allowing applications to process piped data while
still receiving interactive keyboard events.

This addresses the TODO comment in ScreenInteractive::InstallPipedInputHandling().

.bazelignore

@@ -1 +0,0 @@
-bazel/test/

.bazelrc

@@ -1,5 +1,4 @@
 common --enable_bzlmod
-common --enable_workspace
 
 build --features=layering_check
 build --enable_bzlmod
@@ -7,4 +6,4 @@ build --enable_bzlmod
 build --enable_platform_specific_config
 build:linux --cxxopt=-std=c++20
 build:macos --cxxopt=-std=c++20
-build:windows --cxxopt=/std:c++20
+build:windows --cxxopt=-std:c++20

.github/copilot-instructions.md

@@ -1,212 +0,0 @@
-# FTXUI - Functional Terminal (X) User Interface
-
-FTXUI is a cross-platform C++ library for terminal-based user interfaces with a functional programming approach, inspired by React.
-
-**ALWAYS reference these instructions first and fallback to search or bash commands only when you encounter unexpected information that does not match the information here.**
-
-## Working Effectively
-
-### Build System Setup and Commands
-- Bootstrap and build the repository:
-  ```bash
-  # Basic build (library only) - fast
-  cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
-  cmake --build build --parallel $(nproc)
-  # Build time: ~30 seconds. NEVER CANCEL. Set timeout to 120+ seconds.
-  
-  # Build with examples  
-  cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DFTXUI_BUILD_EXAMPLES=ON
-  cmake --build build --parallel $(nproc)
-  # Build time: ~70 seconds. NEVER CANCEL. Set timeout to 180+ seconds.
-  
-  # Build with examples and tests
-  cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DFTXUI_BUILD_EXAMPLES=ON -DFTXUI_BUILD_TESTS=ON
-  cmake --build build --parallel $(nproc)
-  # Build time: ~113 seconds (includes GoogleTest download). NEVER CANCEL. Set timeout to 300+ seconds.
-  ```
-
-- Alternative build with Ninja (faster):
-  ```bash
-  cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DFTXUI_BUILD_EXAMPLES=ON
-  ninja -C build
-  # Build time: ~62 seconds. NEVER CANCEL. Set timeout to 180+ seconds.
-  ```
-
-- Run unit tests:
-  ```bash
-  # Configure with tests enabled first, then:
-  cd build && ctest --output-on-failure
-  # Test time: ~4 seconds (302 tests). NEVER CANCEL. Set timeout to 60+ seconds.
-  ```
-
-### Bazel Support
-- FTXUI also supports Bazel build system
-- **WARNING**: Bazel may fail due to network connectivity issues in sandboxed environments
-- If Bazel is available:
-  ```bash
-  bazel build //...  # Build everything
-  bazel test //...   # Run tests
-  ```
-
-## Validation
-
-### Manual Testing After Changes
-- **ALWAYS manually validate changes by building and running examples after making code modifications**
-- Run example applications to verify functionality:
-  ```bash
-  # Build an example first
-  cmake --build build --target ftxui_example_border
-  
-  # Run examples (they are interactive, use timeout to terminate)
-  timeout 2s build/examples/dom/ftxui_example_border
-  timeout 2s build/examples/dom/ftxui_example_color_gallery
-  timeout 2s build/examples/component/ftxui_example_button
-  ```
-- Examples should produce visual terminal output with borders, colors, and UI components
-- **CRITICAL**: Always run at least one DOM example and one Component example to verify both modules work
-
-### Code Quality and Formatting
-- Always run formatting before committing:
-  ```bash
-  ./tools/format.sh
-  # Format time: ~7 seconds. NEVER CANCEL. Set timeout to 60+ seconds.
-  ```
-- The format script adds license headers and runs clang-format on all source files
-- **Required**: Run formatting or the CI (.github/workflows/build.yaml) will fail
-
-### Build Validation Requirements
-- ALWAYS build with both `-DFTXUI_BUILD_EXAMPLES=ON` and `-DFTXUI_BUILD_TESTS=ON` when making changes
-- Run the complete test suite with `ctest --output-on-failure`
-- All 302 tests must pass
-- **Scenario Testing**: Run at least these validation scenarios:
-  1. Build library only (basic validation)
-  2. Build with examples and run 2-3 different examples
-  3. Build with tests and run complete test suite
-  4. Run formatting tool to ensure code style compliance
-
-## Project Structure
-
-### Key Directories
-```
-/home/runner/work/FTXUI/FTXUI/
-├── include/ftxui/           # Public header files
-│   ├── component/           # Interactive component headers
-│   ├── dom/                 # DOM element headers  
-│   ├── screen/              # Screen and rendering headers
-│   └── util/                # Utility headers
-├── src/ftxui/               # Implementation files
-│   ├── component/           # Interactive components (buttons, menus, etc.)
-│   ├── dom/                 # DOM elements (layout, styling, text)
-│   ├── screen/              # Screen rendering and terminal handling
-│   └── util/                # Utilities
-├── examples/                # Example applications
-│   ├── component/           # Interactive component examples
-│   └── dom/                 # DOM element examples
-├── cmake/                   # CMake configuration files
-├── tools/                   # Development tools (formatting, etc.)
-└── .github/workflows/       # CI/CD configuration
-```
-
-### Core Library Modules
-FTXUI is organized into three main modules that depend on each other:
-```
-┌component──┐  (Interactive UI components)
-│┌dom──────┐│  (Layout and styling elements)  
-││┌screen─┐││  (Terminal rendering and input)
-└┴┴───────┴┴┘
-```
-
-1. **screen**: Low-level terminal handling, colors, pixels, input
-2. **dom**: Layout elements (hbox, vbox, text, borders, etc.)
-3. **component**: Interactive components (buttons, menus, input fields)
-
-### CMake Build Options
-| Option                            | Description                      | Default |
-|-----------------------------------|----------------------------------|---------|
-| FTXUI_BUILD_EXAMPLES              | Build example applications       | OFF     |
-| FTXUI_BUILD_DOCS                  | Build documentation             | OFF     |  
-| FTXUI_BUILD_TESTS                 | Build and enable tests          | OFF     |
-| FTXUI_BUILD_MODULES               | Build C++20 modules             | OFF     |
-| FTXUI_ENABLE_INSTALL              | Generate install targets        | ON      |
-| FTXUI_MICROSOFT_TERMINAL_FALLBACK | Windows terminal compatibility  | ON/OFF  |
-
-## Common Tasks
-
-### Building Examples
-```bash
-# Build specific examples
-cmake --build build --target ftxui_example_border
-cmake --build build --target ftxui_example_button
-cmake --build build --target ftxui_example_menu
-
-# List all available examples
-find build -name "ftxui_example_*" -type f
-```
-
-### Running Tests
-```bash
-# Run all tests
-cd build && ctest
-
-# Run tests with verbose output
-cd build && ctest --verbose
-
-# Run specific test pattern
-cd build && ctest -R "Button" --verbose
-```
-
-### Working with Source Code
-- **Component Development**: Modify files in `src/ftxui/component/` for interactive elements
-- **DOM Development**: Modify files in `src/ftxui/dom/` for layout and styling
-- **Screen Development**: Modify files in `src/ftxui/screen/` for terminal rendering
-- **Adding Examples**: Add new `.cpp` files in `examples/component/` or `examples/dom/`
-- **Header Files**: Public APIs are in `include/ftxui/[module]/`
-
-### Integration Patterns
-When adding FTXUI to a project, use CMake FetchContent (recommended):
-```cmake
-include(FetchContent)
-FetchContent_Declare(ftxui
-  GIT_REPOSITORY https://github.com/ArthurSonzogni/ftxui
-  GIT_TAG v6.1.9
-)
-FetchContent_MakeAvailable(ftxui)
-
-target_link_libraries(your_target PRIVATE
-    ftxui::component  # For interactive components
-    ftxui::dom        # For layout elements  
-    ftxui::screen     # For basic rendering
-)
-```
-
-## Troubleshooting
-
-### Build Issues
-- If CMake configuration fails, ensure C++20 support: `cmake --version` (need 3.12+)
-- If Ninja build fails, fall back to Make: `cmake -S . -B build` (without `-G Ninja`)
-- If tests fail to build, GoogleTest download might have failed - check network connectivity
-- Build artifacts are in `build/` directory - delete with `rm -rf build` to clean
-
-### Example Issues  
-- Examples are interactive terminal applications - use `timeout` to terminate them
-- If examples don't display correctly, terminal might not support colors/Unicode
-- Examples require terminal size of at least 80x24 for proper display
-
-### Formatting Issues
-- Format script requires clang-format to be installed
-- If format script fails, check that source files are not read-only
-- Format script modifies files in-place - commit changes afterwards
-
-## Critical Reminders
-
-- **NEVER CANCEL long-running builds** - they may take 2-3 minutes
-- **ALWAYS run the formatting tool** before committing changes  
-- **ALWAYS build and test examples** when making component/dom changes
-- **SET APPROPRIATE TIMEOUTS**: 300+ seconds for builds, 60+ seconds for tests
-- **BUILD TIMING EXPECTATIONS**:
-  - Basic library: ~30 seconds
-  - With examples: ~70 seconds  
-  - With examples + tests: ~113 seconds (first time, includes GoogleTest download)
-  - Subsequent builds: ~60-70 seconds
-  - Tests execution: ~4 seconds
-  - Formatting: ~7 seconds

.github/workflows/build.yaml

@@ -56,13 +56,6 @@ jobs:
           CXX: ${{ matrix.cxx }}
         run: bazel test --test_output=all ...
 
-      - name: "Bazel Smoke test"
-        env:
-          CC: ${{ matrix.cc }}
-          CXX: ${{ matrix.cxx }}
-        run: bazel build //... --enable_bzlmod --override_module=ftxui=../..
-        working-directory: bazel/test
-
   test_cmake:
     name: "CMake, ${{ matrix.compiler }}, ${{ matrix.os }}"
     strategy:

.github/workflows/documentation.yaml

@@ -12,10 +12,6 @@ jobs:
     steps:
       - name: "Checkout repository"
         uses: actions/checkout@v3
-        with:
-          fetch-depth: 0   # Need full history.
-          fetch-tags: true # Need tags.
-
 
       - name: "Install cmake"
         uses: lukka/get-cmake@latest
@@ -34,12 +30,7 @@ jobs:
           sudo apt-get install graphviz;
 
       - name: "Build documentation"
-        run: |
-          python3 ./tools/build_multiversion_doc.py
-
-      - name: "Build examples"
         run: >
-          mkdir -p multiversion_docs/main/examples;
           mkdir build;
           cd build;
           emcmake cmake ..
@@ -50,7 +41,8 @@ jobs:
           -DFTXUI_BUILD_TESTS_FUZZER=OFF
           -DFTXUI_ENABLE_INSTALL=OFF
           -DFTXUI_DEV_WARNINGS=OFF;
-          cmake --build .;
+          cmake --build . --target doc;
+          cmake --build . ;
           rsync -amv
           --include='*/'
           --include='*.html'
@@ -60,13 +52,13 @@ jobs:
           --include='*.wasm'
           --exclude='*'
           examples
-          ../multiversion_docs/
+          doc/doxygen/html;
 
       - name: "Deploy"
         uses: peaceiris/actions-gh-pages@v3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: multiversion_docs
+          publish_dir: build/doc/doxygen/html/
           enable_jekyll: false
           allow_empty_commit: false
           force_orphan: true

.gitignore

@@ -24,12 +24,10 @@ out/
 !BUILD.bazel
 !MODULE.bazel
 !.bazelrc
-!.bazelignore
 
 # .github directory:
 !.github/**/*.yaml
 !.github/**/*.yml
-!.github/**/*.md
 
 # cmake directory:
 !cmake/**/*.in
@@ -38,10 +36,6 @@ out/
 # bazel directory:
 !bazel/**/*.bzl
 !.bcr/*
-!bazel/test/*.bazel
-!bazel/test/*.bazelrc
-!bazel/test/*.cpp
-!bazel/test/*.md
 
 # doc directory:
 !doc/**/Doxyfile.in
@@ -76,6 +70,4 @@ out/
 
 # tools directory:
 !tools/**/*.sh
-!tools/**/*.py
 !tools/**/*.cpp
-build/

BUILD.bazel

@@ -15,16 +15,13 @@ load(":bazel/ftxui.bzl", "generate_examples")
 load(":bazel/ftxui.bzl", "windows_copts")
 
 # A meta target depending on all of the ftxui submodules.
-# Note that component depends on dom and screen, so ftxui re-exports all headers.
+# Note that component depends on dom and screen, so ftxui is just an alias for 
+# component.
 # ┌component──┐
 # │┌dom──────┐│
 # ││┌screen─┐││
 # └┴┴───────┴┴┘
-ftxui_cc_library(
+alias(name = "ftxui", actual = ":component")
-    name = "ftxui",
-    hdrs = glob(["include/ftxui/**/*.hpp"]),
-    deps = [":component"],
-)
 
 # @ftxui:screen is a module that provides a screen buffer and color management
 # for terminal applications. A screen is a 2D array of cells, each cell can

CHANGELOG.md

@@ -25,12 +25,6 @@ Next
   ```
   Thanks @mikomikotaishi for PR #1015.
 - Remove dependency on 'pthread'.
-- Bugfix: Bazel target @ftxui is now visible. Thanks @dskkato in #1157.
-
-### General
-- Breaking. Move to `std::string_view` instead of `const std::string&` where
-  applicable. This yields better interoperability with string literals and
-  avoids unnecessary copies. Thanks @mikomikotaishi for PR #1154
 
 ### Component
 - Feature: POSIX Piped Input Handling.
@@ -43,15 +37,7 @@ Next
   output. Thanks @zozowell in #1064.
 - Fix vertical `ftxui::Slider`. The "up" key was previously decreasing the
   value. Thanks @its-pablo in #1093 for reporting the issue.
-- Fix Windows UTF-16 key input handling. Emoji and other code points outside the
-  Basic Multilingual Plane (BMP) are now correctly processed. Thanks @739C1AE2
-  in #1160 for fixing the issue.
 
-### Dom
-- Fix integer overflow in `ComputeShrinkHard`. Thanks @its-pablo in #1137 for
-  reporting and fixing the issue.
-- Add specialization for `vbox/hbox/dbox` to allow a container of Element as
-  as input. Thanks @nbusser in #1117.
 
 6.1.9 (2025-05-07)
 ------------

README.md

@@ -1,4 +1,3 @@
-
 <p align="center">
   <img src="https://github.com/ArthurSonzogni/FTXUI/assets/4759106/6925b6da-0a7e-49d9-883c-c890e1f36007" alt="Demo image"></img>
   <br/>
@@ -22,12 +21,6 @@
   <a href="https://arthursonzogni.github.io/FTXUI/examples/">Examples</a> .
   <a href="https://github.com/ArthurSonzogni/FTXUI/issues">Request Feature</a> ·
   <a href="https://github.com/ArthurSonzogni/FTXUI/pulls">Send a Pull Request</a>
-  
-  <br/>
-  <a href="https://github.com/ArthurSonzogni/">English</a> |
-  <a href="https://github.com/ArthurSonzogni/ftxui-translations/tree/zh-CH">中文翻译</a> |
-  <a href="https://github.com/ArthurSonzogni/ftxui-translations/tree/zh-CH">繁體中文</a> |
-  <a href="https://github.com/ArthurSonzogni/ftxui-translations/tree/ja">日本語</a>
 
 </p>
 
@@ -369,9 +362,6 @@ Feel free to add your projects here:
 - [FTB - tertminal file browser](https://github.com/Cyxuan0311/FTB)
 - [openJuice](https://github.com/mikomikotaishi/openJuice)
 - [SHOOT!](https://github.com/ShingZhanho/ENGG1340-Project-25Spring)
-- [VerifySN (Fast Hash Tool)](https://github.com/d06i/verifySN)
-- [tic-tac-toe](https://github.com/birland/tic-tac-toe)
-- [typing-speed-test](https://github.com/ymcx/typing-speed-test)
 
 ### [cpp-best-practices/game_jam](https://github.com/cpp-best-practices/game_jam)
 
@@ -425,13 +415,9 @@ cc_binary(
     name = "your_target",
     srcs = ["your_source.cc"],
     deps = [
-        # Choose submodules
+        "@ftxui//:ftxui_component",
-        "@ftxui//:component",
+        "@ftxui//:ftxui_dom",
-        "@ftxui//:dom",
+        "@ftxui//:ftxui_screen",
-        "@ftxui//:screen",
-        
-        # Or use the single ftxui target (includes all modules)
-        # "@ftxui//:ftxui",
     ],
 )
 ```

bazel/test/.bazelrc

@@ -1 +0,0 @@
-../../.bazelrc

bazel/test/BUILD.bazel

@@ -1,23 +0,0 @@
-# Copyright 2025 Arthur Sonzogni. All rights reserved.
-# Use of this source code is governed by the MIT license that can be found in
-# the LICENSE file.
-
-# Test using individual submodules
-cc_binary(
-    name = "smoke",
-    srcs = ["smoke.cpp"],
-    deps = [
-        "@ftxui//:component",
-        "@ftxui//:dom",
-        "@ftxui//:screen",
-    ],
-)
-
-# Test using the single ftxui target
-cc_binary(
-    name = "smoke_single_dependency",
-    srcs = ["smoke.cpp"],
-    deps = [
-        "@ftxui",
-    ],
-)

bazel/test/MODULE.bazel

@@ -1,9 +0,0 @@
-# Copyright 2025 Arthur Sonzogni. All rights reserved.
-# Use of this source code is governed by the MIT license that can be found in
-# the LICENSE file.
-module(
-    name = "ftxui_integration_test",
-    version = "0.0.1",
-)
-
-bazel_dep(name = "ftxui", version = "6.1.9")

bazel/test/README.md

@@ -1,38 +0,0 @@
-# FTXUI Bazel Integration Test
-
-This directory contains integration tests to verify that FTXUI can be properly consumed as an external dependency using Bazel with Bzlmod.
-
-## Purpose
-
-These tests ensure that:
-- FTXUI's public API is correctly exposed to external projects
-- Both single-target (`@ftxui//:ftxui`) and submodule-based dependencies work correctly
-- Headers are properly re-exported and accessible from downstream projects
-
-## Build Instructions
-
-To build all targets:
-
-```bash
-bazel build //... --enable_bzlmod --override_module=ftxui=../..
-```
-
-To build individual targets:
-
-```bash
-# Test using individual submodules
-bazel build //:smoke --enable_bzlmod --override_module=ftxui=../..
-
-# Test using the single ftxui target
-bazel build //:smoke_single_dependency --enable_bzlmod --override_module=ftxui=../..
-```
-
-## Run the Examples
-
-```bash
-# Run the submodules version
-./bazel-bin/smoke
-
-# Run the single-target version
-./bazel-bin/smoke_single_dependency
-```

bazel/test/WORKSPACE.bazel

@@ -1,4 +0,0 @@
-# Copyright 2025 Arthur Sonzogni. All rights reserved.
-# Use of this source code is governed by the MIT license that can be found in
-# the LICENSE file.
-workspace(name = "ftxui_smoke_test")

bazel/test/smoke.cpp

@@ -1,16 +0,0 @@
-// Copyright 2025 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-#include <ftxui/dom/elements.hpp>
-#include <ftxui/screen/screen.hpp>
-#include <ftxui/component/component.hpp>
-#include <ftxui/component/screen_interactive.hpp>
-
-int main() {
-  using namespace ftxui;
-  auto screen = ScreenInteractive::TerminalOutput();
-  auto component = Button("Quit", screen.ExitLoopClosure());
-  screen.Loop(component);
-  return 0;
-}
-

cmake/ftxui_find_google_test.cmake

@@ -13,7 +13,7 @@ include(FetchContent)
 
 FetchContent_Declare(googletest
   GIT_REPOSITORY "https://github.com/google/googletest"
-  GIT_TAG        52eb8108c5bdec04579160ae17225d66034bd723 # v1.17.0
+  GIT_TAG        23ef29555ef4789f555f1ba8c51b4c52975f0907
   GIT_PROGRESS   TRUE
 )
 

cmake/ftxui_install.cmake

@@ -11,9 +11,6 @@ include(CMakePackageConfigHelpers)
 install(
   TARGETS screen dom component
   EXPORT ftxui-targets
-  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
   )
 
 install(

doc/cpp20-modules.md

@@ -4,15 +4,15 @@
 > [!WARNING]
 > This feature is still in development, and the API may change in future releases.
 > Your contribution is needed to help us improve the compatibility and usability
-> of C++ modules in FTXUI. If you encounter any issues or have suggestions,
+> of C++20 modules in FTXUI. If you encounter any issues or have suggestions,
 > please open an issue.
 
 FTXUI experimentally supports
 [C++20 modules](https://en.cppreference.com/w/cpp/language/modules) to reduce
-compilation times and improve code organization. Each part of the library has a
+compilation times and improve code organization. Each header has a
-corresponding module, split into partitions per each header.
+corresponding module.
 
-Use the FTXUI_BUILD_MODULES option to build the FTXUI project itself to provide C++20 modules,
+Use the FTXUI_BUILD_MODULES option to build the FTXUI project itself to provide C++ 20 modules,
 for example with CMake and Ninja:
 
 ```sh
@@ -25,7 +25,7 @@ ninja
 ```
 
 > [!NOTE]
-> To use modules, you need a C++≥20 compatible compiler, CMake version 3.20 or
+> To use modules, you need a C++20 compatible compiler, CMake version 3.20 or
 > higher, and use a compatible generator like Ninja. Note that Makefile
 > generators **do not support modules**.
 
@@ -34,12 +34,9 @@ Then, in your own code you can consume the modules and code as normal:
 ```cpp
 import ftxui;
 
-using ftxui::Button;
-using ftxui::ScreenInteractive;
-
 int main() {
-  auto screen = ScreenInteractive::TerminalOutput();
+  auto screen = ftxui::ScreenInteractive::TerminalOutput();
-  auto button = Button("Click me", screen.QuitClosure());
+  auto button = ftxui::Button("Click me", screen.QuitClosure());
   screen.Loop(button);
   return 0;
 }
@@ -73,6 +70,38 @@ are available:
 
 - `ftxui`
     - `ftxui.component`
-    - `ftxui.dom`
+      - `ftxui.component.Animation`
-    - `ftxui.screen`
+      - `ftxui.component.CapturedMouse`
-    - `ftxui.util`
+      - `ftxui.component.Component`
+      - `ftxui.component.ComponentBase`
+      - `ftxui.component.ComponentOptions`
+      - `ftxui.component.Event`
+      - `ftxui.component.Loop`
+      - `ftxui.component.Mouse`
+      - `ftxui.component.Receiver`
+      - `ftxui.component.ScreenInteractive`
+      - `ftxui.component.Task`
+- `ftxui.dom`
+    - `ftxui.dom.Canvas`
+    - `ftxui.dom.Deprecated`
+    - `ftxui.dom.Direction`
+    - `ftxui.dom.Elements`
+    - `ftxui.dom.FlexboxConfig`
+    - `ftxui.dom.LinearGradient`
+    - `ftxui.dom.Node`
+    - `ftxui.dom.Requirement`
+    - `ftxui.dom.Selection`
+    - `ftxui.dom.Table`
+- `ftxui.screen`
+    - `ftxui.screen.Box`
+    - `ftxui.screen.Color`
+    - `ftxui.screen.ColorInfo`
+    - `ftxui.screen.Deprecated`
+    - `ftxui.screen.Image`
+    - `ftxui.screen.Pixel`
+    - `ftxui.screen.Screen`
+    - `ftxui.screen.String`
+    - `ftxui.screen.Terminal`
+- `ftxui.util`
+    - `ftxui.util.AutoReset`
+    - `ftxui.util.Ref`

doc/footer.html

@@ -2,9 +2,16 @@
 <!-- start footer part -->
 <!--BEGIN GENERATE_TREEVIEW-->
 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    $navpath
+    <li class="footer">$generatedby <a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion </li>
+  </ul>
 </div>
 <!--END GENERATE_TREEVIEW-->
 <!--BEGIN !GENERATE_TREEVIEW-->
+<hr class="footer"/><address class="footer"><small>
+$generatedby&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion
+</small></address>
 <!--END !GENERATE_TREEVIEW-->
 </body>
 </html>

doc/header.html

@@ -92,24 +92,6 @@
 
 </script>
 <script type="module">
-  // Ignore non english pages and/or the main page.
-  const excluded_lang = [
-    "/de",
-    "/es",
-    "/fr",
-    "/it",
-    "/ja",
-    "/ja",
-    "/ko"
-    "/ru",
-    "/zh-CH",
-    "/zh-TW",
-  ]
-  if (excluded_lang.some(lang => window.location.pathname.startsWith(lang)) ||
-      window.location.pathname.endsWith("index.html")) {
-    return;
-  }
-
   // Click on the navtree, except for the main page where this is already done
   // automatically.
   let delay = 0;

doc/installation_conan.md

@@ -1,104 +1,24 @@
 @page installation_conan Conan
-@tableofcontents
 
-FTXUI can be easily obtained and integrated into your project using the Conan package manager.
+Unofficial recipe for FTXUI exists on Conan Center:
-
+<https://conan.io/center/recipes/ftxui>
-## Prerequisites
-
-First, ensure that Conan is installed on your system. If not, you can install it via pip:
-
-```powershell
-pip install conan
-```
-Conan often works in tandem with CMake, so you will need to have CMake installed as well. Once you have confirmed both Conan and CMake are installed, create a project directory, for example, `ftxui-demo`:
-
-```powershell
-mkdir C:\ftxui-demo
-cd C:\ftxui-demo
-```
-
-## Configuration
-
-After ensuring your environment is set up correctly, create a Conan configuration file `conanfile.txt`. This file is used to declare your project's dependencies. The community-maintained package for FTXUI can be found on [Conan Center](https://conan.io/center/recipes/ftxui).
 
 > [!note]
-> This is an unofficial build script. This means it is not maintained by the FTXUI
+> This is an unofficial recipe. That means it is not maintained by the FTXUI
-> team but by the community. The package maintainer appears to actively update it
+> team, but by the community. The package maintainers seems to actively update
-> to the latest releases. Many thanks to the maintainer for their work!
+> the package to the latest version. Thanks to the maintainers for their work!
 
-@todo If you are familiar with the process, please consider adding an "official" build script to Conan Center.
-This could be a GitHub Action that automatically updates Conan Center upon new releases.
 
-```ini
+@todo Add instructions on how to use the conan recipe.
-[requires]
-ftxui/6.0.2
 
-[generators]
+@todo Please consider adding an "official" recipe to Conan Center if know how.
-CMakeDeps
+It could be a github action that will automatically update the conan center
-CMakeToolchain
+when a new release is made.
-
-[layout]
-cmake_layout
-```
-
-## Install Dependencies and Build
-
-Once configured, run the following command to install FTXUI and its dependencies:
-
-```powershell
-conan install . --output-folder=build --build=missing
-```
-
-This will download and install `ftxui/6.0.2` along with all its dependencies from Conan's remote repositories.
-
-After the installation completes, you can test it by creating a `demo.cpp` file in your project directory:
-
-```cpp
-#include <ftxui/screen/screen.hpp>
-#include <ftxui/dom/elements.hpp>
-#include <iostream>
-
-int main() {
-    using namespace ftxui;
-    auto document = hbox({
-        text(" Hello "),
-        text("FTXUI ") | bold | color(Color::Red),
-        text(" world! ")
-    });
-    auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document));
-    Render(screen, document);
-    std::cout << screen.ToString() << std::endl;
-    return 0;
-}
-```
-
-If the test is successful, you can then create a `CMakeLists.txt` file in the project directory:
-
-```cmake
-cmake_minimum_required(VERSION 3.20)
-project(ftxui-demo)
-
-# Set the C++ standard
-set(CMAKE_CXX_STANDARD 20)
-
-# Find the FTXUI package installed via Conan
-find_package(ftxui CONFIG REQUIRED)
-
-# Create the executable
-add_executable(demo demo.cpp)
-
-# Link the executable to the FTXUI library
-target_link_libraries(demo PRIVATE ftxui::component)
-```
-
-@todo 中国大陆在这方面的下载可能会受限制，需要一个替代的方案
-
----
 
 <div class="section_buttons">
-
+ 
 | Previous          |
 |:------------------|
 | [Getting Started](getting-started.html) |
-
+ 
-</div>
+</div>

doc/installation_manual.md

@@ -8,7 +8,7 @@ Clone and build the project using CMake:
 ```bash
 git clone https://github.com/ArthurSonzogni/FTXUI.git
 cd FTXUI
-cmake -S . -B build -D FTXUI_ENABLE_INSTALL=ON
+cmake -S . -B build -DFTXUI_ENABLE_INSTALL=ON -D
 cmake --build build -j
 sudo cmake --install build
 ```

examples/component/CMakeLists.txt

@@ -39,7 +39,6 @@ example(radiobox)
 example(radiobox_in_frame)
 example(renderer)
 example(resizable_split)
-example(resizable_split_clamp)
 example(scrollbar)
 example(selection)
 example(slider)

examples/component/button.cpp

@@ -34,8 +34,8 @@ int main() {
   int value = 50;
 
   // clang-format off
-  auto btn_dec_01 = Button("-1", [&] { value -= 1; }, Style());
+  auto btn_dec_01 = Button("-1", [&] { value += 1; }, Style());
-  auto btn_inc_01 = Button("+1", [&] { value += 1; }, Style());
+  auto btn_inc_01 = Button("+1", [&] { value -= 1; }, Style());
   auto btn_dec_10 = Button("-10", [&] { value -= 10; }, Style());
   auto btn_inc_10 = Button("+10", [&] { value += 10; }, Style());
   // clang-format on

examples/component/resizable_split.cpp

@@ -3,6 +3,7 @@
 // the LICENSE file.
 #include <memory>  // for shared_ptr, allocator, __shared_ptr_access
 
+#include "ftxui/component/captured_mouse.hpp"  // for ftxui
 #include "ftxui/component/component.hpp"  // for Renderer, ResizableSplitBottom, ResizableSplitLeft, ResizableSplitRight, ResizableSplitTop
 #include "ftxui/component/component_base.hpp"      // for ComponentBase
 #include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
@@ -13,24 +14,17 @@ using namespace ftxui;
 int main() {
   auto screen = ScreenInteractive::Fullscreen();
 
-  // State:
+  auto middle = Renderer([] { return text("middle") | center; });
+  auto left = Renderer([] { return text("Left") | center; });
+  auto right = Renderer([] { return text("right") | center; });
+  auto top = Renderer([] { return text("top") | center; });
+  auto bottom = Renderer([] { return text("bottom") | center; });
+
   int left_size = 20;
   int right_size = 20;
   int top_size = 10;
   int bottom_size = 10;
 
-  // Renderers:
-  auto RendererInfo = [](const std::string& name, int* size) {
-    return Renderer([name, size] {
-      return text(name + ": " + std::to_string(*size)) | center;
-    });
-  };
-  auto middle = Renderer([] { return text("Middle") | center; });
-  auto left = RendererInfo("Left", &left_size);
-  auto right = RendererInfo("Right", &right_size);
-  auto top = RendererInfo("Top", &top_size);
-  auto bottom = RendererInfo("Bottom", &bottom_size);
-
   auto container = middle;
   container = ResizableSplitLeft(left, container, &left_size);
   container = ResizableSplitRight(right, container, &right_size);

examples/component/resizable_split_clamp.cpp

@@ -1,43 +0,0 @@
-// Copyright 2025 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-#include <memory>  // for shared_ptr, allocator, __shared_ptr_access
-
-#include "ftxui/component/component.hpp"  // for Renderer, ResizableSplitBottom, ResizableSplitLeft, ResizableSplitRight, ResizableSplitTop
-#include "ftxui/component/component_base.hpp"      // for ComponentBase
-#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
-#include "ftxui/dom/elements.hpp"  // for Element, operator|, text, center, border
-
-using namespace ftxui;
-
-int main() {
-  auto screen = ScreenInteractive::Fullscreen();
-
-  // State:
-  int size = 40;
-  int size_min = 10;
-  int size_max = 80;
-
-  // Renderers:
-  auto split = ResizableSplit({
-      .main = Renderer([] { return text("Left") | center; }),
-      .back = Renderer([] { return text("Right") | center; }),
-      .direction = Direction::Left,
-      .main_size = &size,
-      .min = &size_min,
-      .max = &size_max,
-  });
-
-  auto renderer = Renderer(split, [&] {
-    return window(text("Drag the separator with the mouse"),
-                  vbox({
-                      text("Min:  " + std::to_string(size_min)),
-                      text("Max:  " + std::to_string(size_max)),
-                      text("Size: " + std::to_string(size)),
-                      separator(),
-                      split->Render() | flex,
-                  }));
-  });
-
-  screen.Loop(renderer);
-}

flake.lock

@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1731533236,
+        "lastModified": 1694529238,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1765644376,
+        "lastModified": 1697915759,
-        "narHash": "sha256-yqHBL2wYGwjGL2GUF2w3tofWl8qO9tZEuI4wSqbCrtE=",
+        "narHash": "sha256-WyMj5jGcecD+KC8gEs+wFth1J1wjisZf8kVZH13f1Zo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "23735a82a828372c4ef92c660864e82fbe2f5fbe",
+        "rev": "51d906d2341c9e866e48c2efcaac0f2d70bfd43e",
         "type": "github"
       },
       "original": {

flake.nix

@@ -12,9 +12,15 @@
     let llvm = pkgs.llvmPackages_latest; in
     {
       packages = rec {
-        default = pkgs.stdenv.mkDerivation {
+        default = pkgs.stdenv.mkDerivation rec {
-          name = "ftxui";
+          pname = "ftxui";
-          src = ./.;
+          version = "v4.0.0";
+          src = pkgs.fetchFromGitHub {
+            owner = "ArthurSonzogni";
+            repo = "FTXUI";
+            rev = version;
+            sha256 = "sha256-3kAhHDUwzwdvHc8JZAcA14tGqa6w69qrN1JXhSxNBQY=";
+          };
 
           nativeBuildInputs = [
             pkgs.cmake

include/ftxui/component/component_options.hpp

@@ -11,7 +11,6 @@
 #include <ftxui/util/ref.hpp>      // for Ref, ConstRef, StringRef
 #include <ftxui/util/warn_windows_macro.hpp>
 #include <functional>  // for function
-#include <limits>      // for numeric_limits
 #include <string>      // for string
 
 #include "ftxui/component/component_base.hpp"  // for Component
@@ -218,10 +217,6 @@ struct ResizableSplitOption {
       (direction() == Direction::Left || direction() == Direction::Right) ? 20
                                                                           : 10;
   std::function<Element()> separator_func = [] { return ::ftxui::separator(); };
-
-  // Constraints on main_size:
-  Ref<int> min = 0;
-  Ref<int> max = std::numeric_limits<int>::max();
 };
 
 // @brief Option for the `Slider` component.

include/ftxui/component/event.hpp

@@ -6,7 +6,6 @@
 
 #include <ftxui/component/mouse.hpp>  // for Mouse
 #include <string>                     // for string, operator==
-#include <string_view>
 
 namespace ftxui {
 
@@ -29,13 +28,13 @@ class ComponentBase;
 /// @ingroup component
 struct Event {
   // --- Constructor section ---------------------------------------------------
-  static Event Character(std::string_view);
+  static Event Character(std::string);
   static Event Character(char);
   static Event Character(wchar_t);
-  static Event Special(std::string_view);
+  static Event Special(std::string);
-  static Event Mouse(std::string_view, Mouse mouse);
+  static Event Mouse(std::string, Mouse mouse);
-  static Event CursorPosition(std::string_view, int x, int y);  // Internal
+  static Event CursorPosition(std::string, int x, int y);  // Internal
-  static Event CursorShape(std::string_view, int shape);        // Internal
+  static Event CursorShape(std::string, int shape);        // Internal
 
   // --- Arrow ---
   static const Event ArrowLeft;

include/ftxui/component/receiver.hpp

@@ -4,14 +4,14 @@
 #ifndef FTXUI_COMPONENT_RECEIVER_HPP_
 #define FTXUI_COMPONENT_RECEIVER_HPP_
 
+#include <ftxui/util/warn_windows_macro.hpp>
 #include <algorithm>           // for copy, max
 #include <atomic>              // for atomic, __atomic_base
 #include <condition_variable>  // for condition_variable
-#include <ftxui/util/warn_windows_macro.hpp>
+#include <memory>              // for unique_ptr, make_unique
-#include <memory>   // for unique_ptr, make_unique
+#include <mutex>               // for mutex, unique_lock
-#include <mutex>    // for mutex, unique_lock
+#include <queue>               // for queue
-#include <queue>    // for queue
+#include <utility>             // for move
-#include <utility>  // for move
 
 namespace ftxui {
 

include/ftxui/dom/canvas.hpp

@@ -106,9 +106,9 @@ struct Canvas {
   // Draw using character of size 2x4 at position (x,y)
   // x is considered to be a multiple of 2.
   // y is considered to be a multiple of 4.
-  void DrawText(int x, int y, std::string_view value);
+  void DrawText(int x, int y, const std::string& value);
-  void DrawText(int x, int y, std::string_view value, const Color& color);
+  void DrawText(int x, int y, const std::string& value, const Color& color);
-  void DrawText(int x, int y, std::string_view value, const Stylizer& style);
+  void DrawText(int x, int y, const std::string& value, const Stylizer& style);
 
   // Draw using directly pixels or images --------------------------------------
   // x is considered to be a multiple of 2.

include/ftxui/dom/elements.hpp

@@ -7,7 +7,6 @@
 #include <functional>
 #include <memory>
 
-#include <string_view>
 #include "ftxui/dom/canvas.hpp"
 #include "ftxui/dom/direction.hpp"
 #include "ftxui/dom/flexbox_config.hpp"
@@ -52,8 +51,8 @@ Elements operator|(Elements, Decorator);
 Decorator operator|(Decorator, Decorator);
 
 // --- Widget ---
-Element text(std::string_view text);
+Element text(std::string text);
-Element vtext(std::string_view text);
+Element vtext(std::string text);
 Element separator();
 Element separatorLight();
 Element separatorDashed();
@@ -62,7 +61,7 @@ Element separatorDouble();
 Element separatorEmpty();
 Element separatorStyled(BorderStyle);
 Element separator(Pixel);
-Element separatorCharacter(std::string_view);
+Element separatorCharacter(std::string);
 Element separatorHSelector(float left,
                            float right,
                            Color unselected_color,
@@ -90,11 +89,11 @@ Decorator borderStyled(Color);
 Decorator borderWith(const Pixel&);
 Element window(Element title, Element content, BorderStyle border = ROUNDED);
 Element spinner(int charset_index, size_t image_index);
-Element paragraph(std::string_view text);
+Element paragraph(const std::string& text);
-Element paragraphAlignLeft(std::string_view text);
+Element paragraphAlignLeft(const std::string& text);
-Element paragraphAlignRight(std::string_view text);
+Element paragraphAlignRight(const std::string& text);
-Element paragraphAlignCenter(std::string_view text);
+Element paragraphAlignCenter(const std::string& text);
-Element paragraphAlignJustify(std::string_view text);
+Element paragraphAlignJustify(const std::string& text);
 Element graph(GraphFunction);
 Element emptyElement();
 Element canvas(ConstRef<Canvas>);
@@ -121,8 +120,8 @@ Element bgcolor(const LinearGradient&, Element);
 Decorator focusPosition(int x, int y);
 Decorator focusPositionRelative(float x, float y);
 Element automerge(Element child);
-Decorator hyperlink(std::string_view link);
+Decorator hyperlink(std::string link);
-Element hyperlink(std::string_view link, Element child);
+Element hyperlink(std::string link, Element child);
 Element selectionStyleReset(Element);
 Decorator selectionColor(Color foreground);
 Decorator selectionBackgroundColor(Color foreground);

include/ftxui/dom/selection.hpp

@@ -30,7 +30,7 @@ class Selection {
   Selection SaturateVertical(Box box);
   bool IsEmpty() const { return empty_; }
 
-  void AddPart(std::string_view part, int y, int left, int right);
+  void AddPart(const std::string& part, int y, int left, int right);
   std::string GetParts() { return parts_.str(); }
 
  private:

include/ftxui/dom/take_any_args.hpp

@@ -5,18 +5,25 @@
 #define FTXUI_DOM_TAKE_ANY_ARGS_HPP
 
 // IWYU pragma: private, include "ftxui/dom/elements.hpp"
-#include <deque>
 #include <ftxui/dom/node.hpp>
-#include <queue>
-#include <stack>
-#include <vector>
 
 namespace ftxui {
 
+template <class T>
+void Merge(Elements& /*container*/, T /*element*/) {}
+
+template <>
 inline void Merge(Elements& container, Element element) {
   container.push_back(std::move(element));
 }
 
+template <>
+inline void Merge(Elements& container, Elements elements) {
+  for (auto& element : elements) {
+    container.push_back(std::move(element));
+  }
+}
+
 // Turn a set of arguments into a vector.
 template <class... Args>
 Elements unpack(Args... args) {
@@ -25,50 +32,11 @@ Elements unpack(Args... args) {
   return vec;
 }
 
-// Make |container| able to take any number of arguments.
+// Make |container| able to take any number of argments.
 #define TAKE_ANY_ARGS(container)                               \
-  inline Element container(Element child) {                    \
-    return container(unpack(std::move(child)));                \
-  }                                                            \
-                                                               \
   template <class... Args>                                     \
-  inline Element container(Args... children) {                 \
+  Element container(Args... children) {                        \
     return container(unpack(std::forward<Args>(children)...)); \
-  }                                                            \
-                                                               \
-  template <class Container>                                   \
-  inline Element container(Container&& children) {             \
-    Elements elements;                                         \
-    for (auto& child : children) {                             \
-      elements.push_back(std::move(child));                    \
-    }                                                          \
-    return container(std::move(elements));                     \
-  }                                                            \
-  template <>                                                  \
-  inline Element container(std::stack<Element>&& children) {   \
-    Elements elements;                                         \
-    while (!children.empty()) {                                \
-      elements.push_back(std::move(children.top()));           \
-      children.pop();                                          \
-    }                                                          \
-    return container(std::move(elements));                     \
-  }                                                            \
-  template <>                                                  \
-  inline Element container(std::queue<Element>&& children) {   \
-    Elements elements;                                         \
-    while (!children.empty()) {                                \
-      elements.push_back(std::move(children.front()));         \
-      children.pop();                                          \
-    }                                                          \
-    return container(std::move(elements));                     \
-  }                                                            \
-  template <>                                                  \
-  inline Element container(std::deque<Element>&& children) {   \
-    Elements elements;                                         \
-    for (auto& child : children) {                             \
-      elements.push_back(std::move(child));                    \
-    }                                                          \
-    return container(std::move(elements));                     \
   }
 
 TAKE_ANY_ARGS(vbox)

include/ftxui/screen/screen.hpp

@@ -60,7 +60,7 @@ class Screen : public Image {
       BarBlinking = 5,
       Bar = 6,
     };
-    Shape shape = Hidden;
+    Shape shape;
   };
 
   Cursor cursor() const { return cursor_; }
@@ -68,7 +68,7 @@ class Screen : public Image {
 
   // Store an hyperlink in the screen. Return the id of the hyperlink. The id is
   // used to identify the hyperlink when the user click on it.
-  uint8_t RegisterHyperlink(std::string_view link);
+  uint8_t RegisterHyperlink(const std::string& link);
   const std::string& Hyperlink(uint8_t id) const;
 
   using SelectionStyle = std::function<void(Pixel&)>;

include/ftxui/screen/string.hpp

@@ -4,32 +4,27 @@
 #ifndef FTXUI_SCREEN_STRING_HPP
 #define FTXUI_SCREEN_STRING_HPP
 
-#include <string>       // for string, wstring, to_string
+#include <string>  // for string, wstring, to_string
-#include <string_view>  // for string_view
+#include <vector>  // for vector
-#include <vector>       // for vector
 
 namespace ftxui {
-std::string to_string(std::wstring_view s);
+std::string to_string(const std::wstring& s);
-std::wstring to_wstring(std::string_view s);
+std::wstring to_wstring(const std::string& s);
 
 template <typename T>
 std::wstring to_wstring(T s) {
-  return to_wstring(std::string_view(std::to_string(s)));
+  return to_wstring(std::to_string(s));
-}
-template <>
-inline std::wstring to_wstring(const char* s) {
-  return to_wstring(std::string_view(s));
 }
 
-int string_width(std::string_view);
+int string_width(const std::string&);
 
 // Split the string into a its glyphs. An empty one is inserted ater fullwidth
 // ones.
-std::vector<std::string> Utf8ToGlyphs(std::string_view input);
+std::vector<std::string> Utf8ToGlyphs(const std::string& input);
 
 // Map every cells drawn by |input| to their corresponding Glyphs. Half-size
 // Glyphs takes one cell, full-size Glyphs take two cells.
-std::vector<int> CellToGlyphIndex(std::string_view input);
+std::vector<int> CellToGlyphIndex(const std::string& input);
 
 }  // namespace ftxui
 

include/ftxui/util/ref.hpp

@@ -7,7 +7,6 @@
 #include <ftxui/screen/string.hpp>
 #include <memory>
 #include <string>
-#include <string_view>
 #include <variant>
 #include <vector>
 
@@ -18,13 +17,8 @@ template <typename T>
 class ConstRef {
  public:
   ConstRef() = default;
-
-  // Owning constructors:
   ConstRef(T t) : variant_(std::move(t)) {}  // NOLINT
-
-  // Referencing constructors:
   ConstRef(const T* t) : variant_(t) {}      // NOLINT
-
   ConstRef& operator=(ConstRef&&) noexcept = default;
   ConstRef(const ConstRef<T>&) = default;
   ConstRef(ConstRef<T>&&) noexcept = default;
@@ -52,13 +46,8 @@ template <typename T>
 class Ref {
  public:
   Ref() = default;
-
-  // Owning constructors:
   Ref(T t) : variant_(std::move(t)) {}  // NOLINT
-                                        //
-  // Referencing constructors:
   Ref(T* t) : variant_(t) {}            // NOLINT
-                                        //
   ~Ref() = default;
   Ref& operator=(Ref&&) noexcept = default;
   Ref(const Ref<T>&) = default;
@@ -94,15 +83,10 @@ class StringRef : public Ref<std::string> {
  public:
   using Ref<std::string>::Ref;
 
-  // Owning constructors:
   StringRef(const wchar_t* ref)  // NOLINT
       : StringRef(to_string(std::wstring(ref))) {}
   StringRef(const char* ref)  // NOLINT
       : StringRef(std::string(ref)) {}
-  StringRef(std::string_view ref)  // NOLINT
-      : StringRef(std::string(ref)) {}
-  StringRef(std::wstring_view ref)  // NOLINT
-      : StringRef(to_string(ref)) {}
 };
 
 /// @brief An adapter. Own or reference a constant string. For convenience, this
@@ -111,21 +95,14 @@ class ConstStringRef : public ConstRef<std::string> {
  public:
   using ConstRef<std::string>::ConstRef;
 
-  // Referencing constructors:
   ConstStringRef(const std::wstring* ref)  // NOLINT
       : ConstStringRef(to_string(*ref)) {}
-
-  // Owning constructors:
   ConstStringRef(const std::wstring ref)  // NOLINT
       : ConstStringRef(to_string(ref)) {}
-  ConstStringRef(std::wstring_view ref)  // NOLINT
-      : ConstStringRef(to_string(ref)) {}
   ConstStringRef(const wchar_t* ref)  // NOLINT
       : ConstStringRef(to_string(std::wstring(ref))) {}
   ConstStringRef(const char* ref)  // NOLINT
       : ConstStringRef(std::string(ref)) {}
-  ConstStringRef(std::string_view ref)  // NOLINT
-      : ConstStringRef(std::string(ref)) {}
 };
 
 /// @brief An adapter. Reference a list of strings.
@@ -148,15 +125,13 @@ class ConstStringListRef {
     Adapter& operator=(Adapter&&) = default;
     virtual ~Adapter() = default;
     virtual size_t size() const = 0;
-    virtual std::string_view operator[](size_t i) const = 0;
+    virtual std::string operator[](size_t i) const = 0;
   };
-  using Variant = std::variant<const std::vector<std::string>,        //
+  using Variant = std::variant<const std::vector<std::string>,    //
-                               const std::vector<std::string>*,       //
+                               const std::vector<std::string>*,   //
-                               const std::vector<std::string_view>,   //
+                               const std::vector<std::wstring>*,  //
-                               const std::vector<std::string_view>*,  //
+                               Adapter*,                          //
-                               const std::vector<std::wstring>*,      //
+                               std::unique_ptr<Adapter>           //
-                               Adapter*,                              //
-                               std::unique_ptr<Adapter>               //
                                >;
 
   ConstStringListRef() = default;
@@ -166,26 +141,25 @@ class ConstStringListRef {
   ConstStringListRef(ConstStringListRef&&) = default;
   ConstStringListRef(const ConstStringListRef&) = default;
 
-  ConstStringListRef(std::vector<std::string> value) {  // NOLINT
+  ConstStringListRef(std::vector<std::string> value)  // NOLINT
+  {
     variant_ = std::make_shared<Variant>(value);
   }
-  ConstStringListRef(const std::vector<std::string>* value)  {// NOLINT
+  ConstStringListRef(const std::vector<std::string>* value)  // NOLINT
+  {
     variant_ = std::make_shared<Variant>(value);
   }
-  ConstStringListRef(std::vector<std::string_view> value) { // NOLINT
+  ConstStringListRef(const std::vector<std::wstring>* value)  // NOLINT
+  {
     variant_ = std::make_shared<Variant>(value);
   }
-  ConstStringListRef(const std::vector<std::string_view>* value) { // NOLINT
+  ConstStringListRef(Adapter* adapter)  // NOLINT
-    variant_ = std::make_shared<Variant>(value);
+  {
-  }
-  ConstStringListRef(const std::vector<std::wstring>* value) { // NOLINT
-    variant_ = std::make_shared<Variant>(value);
-  }
-  ConstStringListRef(Adapter* adapter) { // NOLINT
     variant_ = std::make_shared<Variant>(adapter);
   }
   template <typename AdapterType>
-  ConstStringListRef(std::unique_ptr<AdapterType> adapter) {  // NOLINT
+  ConstStringListRef(std::unique_ptr<AdapterType> adapter)  // NOLINT
+  {
     variant_ = std::make_shared<Variant>(
         static_cast<std::unique_ptr<Adapter>>(std::move(adapter)));
   }
@@ -194,34 +168,11 @@ class ConstStringListRef {
     return variant_ ? std::visit(SizeVisitor(), *variant_) : 0;
   }
 
-  std::string_view operator[](size_t i) const {
+  std::string operator[](size_t i) const {
-    return variant_ ? std::visit(IndexedGetter{i}, *variant_) : "";
+    return variant_ ? std::visit(IndexedGetter(i), *variant_) : "";
   }
 
  private:
-  struct IndexedGetter {
-    size_t i;
-    std::string_view operator()(const std::vector<std::string>& v) const {
-      return v[i];
-    }
-    std::string_view operator()(const std::vector<std::string>* v) const {
-      return (*v)[i];
-    }
-    std::string_view operator()(const std::vector<std::string_view>& v) const {
-      return std::string(v[i]);
-    }
-    std::string_view operator()(const std::vector<std::string_view>* v) const {
-      return std::string((*v)[i]);
-    }
-    std::string_view operator()(const std::vector<std::wstring>* v) const {
-      return to_string((*v)[i]);
-    }
-    std::string_view operator()(Adapter* v) const { return std::string((*v)[i]); }
-    std::string_view operator()(const std::unique_ptr<Adapter>& v) const {
-      return (*v)[i];
-    }
-  };
-
   struct SizeVisitor {
     size_t operator()(const std::vector<std::string>& v) const {
       return v.size();
@@ -229,12 +180,6 @@ class ConstStringListRef {
     size_t operator()(const std::vector<std::string>* v) const {
       return v->size();
     }
-    size_t operator()(const std::vector<std::string_view>& v) const {
-      return v.size();
-    }
-    size_t operator()(const std::vector<std::string_view>* v) const {
-      return v->size();
-    }
     size_t operator()(const std::vector<std::wstring>* v) const {
       return v->size();
     }
@@ -244,6 +189,25 @@ class ConstStringListRef {
     }
   };
 
+  struct IndexedGetter {
+    IndexedGetter(size_t index)  // NOLINT
+        : index_(index) {}
+    size_t index_;
+    std::string operator()(const std::vector<std::string>& v) const {
+      return v[index_];
+    }
+    std::string operator()(const std::vector<std::string>* v) const {
+      return (*v)[index_];
+    }
+    std::string operator()(const std::vector<std::wstring>* v) const {
+      return to_string((*v)[index_]);
+    }
+    std::string operator()(const Adapter* v) const { return (*v)[index_]; }
+    std::string operator()(const std::unique_ptr<Adapter>& v) const {
+      return (*v)[index_];
+    }
+  };
+
   std::shared_ptr<Variant> variant_;
 };
 

src/ftxui/component.cppm

@@ -3,14 +3,14 @@
 
 export module ftxui.component;
 
-export import :Animation;
+export import ftxui.component.animation;
-export import :CapturedMouse;
+export import ftxui.component.captured_mouse;
-export import :Component;
+export import ftxui.component.component;
-export import :ComponentBase;
+export import ftxui.component.component_base;
-export import :ComponentOptions;
+export import ftxui.component.component_options;
-export import :Event;
+export import ftxui.component.event;
-export import :Loop;
+export import ftxui.component.loop;
-export import :Mouse;
+export import ftxui.component.mouse;
-export import :Receiver;
+export import ftxui.component.receiver;
-export import :ScreenInteractive;
+export import ftxui.component.screen_interactive;
-export import :Task;
+export import ftxui.component.task;

src/ftxui/component/animation.cppm

@@ -1,4 +1,4 @@
-/// @module ftxui.component:Animation
+/// @module ftxui.component.animation
 /// @brief C++20 module interface for the Animation namespace of the Component module.
 ///
 
@@ -6,7 +6,7 @@ module;
 
 #include <ftxui/component/animation.hpp>
 
-export module ftxui.component:Animation;
+export module ftxui.component.animation;
 
 /**
  * @namespace ftxui::animation
@@ -23,7 +23,7 @@ export namespace ftxui::animation {
 
     /**
      * @namespace easing
-     * @brief The FTXUI ftxui::animation::easing:: namespace
+     * @brief The FTXUI sf::animation::easing:: namespace
      */
     namespace easing {
         using ftxui::animation::easing::Function;

src/ftxui/component/button.cpp

@@ -48,7 +48,7 @@ class ButtonBase : public ComponentBase, public ButtonOption {
     }
 
     const EntryState state{
-        std::string(*label), false, active, focused_or_hover, Index(),
+        *label, false, active, focused_or_hover, Index(),
     };
 
     auto element = (transform ? transform : DefaultTransform)  //

src/ftxui/component/captured_mouse.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component.CapturedMouse
+/// @module ftxui.component.captured_mouse
 /// @brief Module file for the CapturedMouseInterface class of the Component module
 
 module;
 
 #include <ftxui/component/captured_mouse.hpp>
 
-export module ftxui.component:CapturedMouse;
+export module ftxui.component.captured_mouse;
 
 /**
  * @namespace ftxui

src/ftxui/component/checkbox.cpp

@@ -27,7 +27,7 @@ class CheckboxBase : public ComponentBase, public CheckboxOption {
     const bool is_focused = Focused();
     const bool is_active = Active();
     auto entry_state = EntryState{
-        std::string(*label), *checked, is_active, is_focused || hovered_, -1,
+        *label, *checked, is_active, is_focused || hovered_, -1,
     };
     auto element = (transform ? transform : CheckboxOption::Simple().transform)(
         entry_state);

src/ftxui/component/component.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Component
+/// @module ftxui.component.component
 /// @brief Module file for the Component classes of the Component module
 
 module;
 
 #include <ftxui/component/component.hpp>
 
-export module ftxui.component:Component;
+export module ftxui.component.component;
 
 /**
  * @namespace ftxui
@@ -28,10 +28,6 @@ export namespace ftxui {
     using ftxui::operator|;
     using ftxui::operator|=;
 
-    /**
-     * @namespace Container
-     * @brief The FTXUI ftxui::Container:: namespace
-     */
     namespace Container {
         using ftxui::Container::Vertical;
         using ftxui::Container::Horizontal;

src/ftxui/component/component_base.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:ComponentBase
+/// @module ftxui.component.component_base
 /// @brief Module file for the ComponentBase class of the Component module
 
 module;
 
 #include <ftxui/component/component_base.hpp>
 
-export module ftxui.component:ComponentBase;
+export module ftxui.component.component_base;
 
 /**
  * @namespace ftxui
@@ -16,10 +16,6 @@ export namespace ftxui {
     using ftxui::Focus;
     using ftxui::Event;
 
-    /**
-     * @namespace animation
-     * @brief The FTXUI ftxui::animation:: namespace
-     */
     namespace animation {
         using ftxui::animation::Params;
     }

src/ftxui/component/component_options.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:ComponentOptions
+/// @module ftxui.component.component_options
 /// @brief Module file for options for the Component class of the Component module
 
 module;
 
 #include <ftxui/component/component_options.hpp>
 
-export module ftxui.component:ComponentOptions;
+export module ftxui.component.component_options;
 
 /**
  * @namespace ftxui

src/ftxui/component/event.cpp

@@ -25,9 +25,9 @@ namespace ftxui {
 /// @brief An event corresponding to a given typed character.
 /// @param input The character typed by the user.
 // static
-Event Event::Character(std::string_view input) {
+Event Event::Character(std::string input) {
   Event event;
-  event.input_ = std::string(input);
+  event.input_ = std::move(input);
   event.type_ = Type::Character;
   return event;
 }
@@ -50,9 +50,9 @@ Event Event::Character(wchar_t c) {
 /// @param input The sequence of character send by the terminal.
 /// @param mouse The mouse state.
 // static
-Event Event::Mouse(std::string_view input, struct Mouse mouse) {
+Event Event::Mouse(std::string input, struct Mouse mouse) {
   Event event;
-  event.input_ = std::string(input);
+  event.input_ = std::move(input);
   event.type_ = Type::Mouse;
   event.data_.mouse = mouse;  // NOLINT
   return event;
@@ -60,9 +60,9 @@ Event Event::Mouse(std::string_view input, struct Mouse mouse) {
 
 /// @brief An event corresponding to a terminal DCS (Device Control String).
 // static
-Event Event::CursorShape(std::string_view input, int shape) {
+Event Event::CursorShape(std::string input, int shape) {
   Event event;
-  event.input_ = std::string(input);
+  event.input_ = std::move(input);
   event.type_ = Type::CursorShape;
   event.data_.cursor_shape = shape;  // NOLINT
   return event;
@@ -71,17 +71,17 @@ Event Event::CursorShape(std::string_view input, int shape) {
 /// @brief An custom event whose meaning is defined by the user of the library.
 /// @param input An arbitrary sequence of character defined by the developer.
 // static
-Event Event::Special(std::string_view input) {
+Event Event::Special(std::string input) {
   Event event;
-  event.input_ = std::string(input);
+  event.input_ = std::move(input);
   return event;
 }
 
 /// @internal
 // static
-Event Event::CursorPosition(std::string_view input, int x, int y) {
+Event Event::CursorPosition(std::string input, int x, int y) {
   Event event;
-  event.input_ = std::string(input);
+  event.input_ = std::move(input);
   event.type_ = Type::CursorPosition;
   event.data_.cursor = {x, y};  // NOLINT
   return event;
@@ -292,12 +292,12 @@ const Event Event::ArrowLeftCtrl  = Event::Special("\x1B[1;5D");
 const Event Event::ArrowRightCtrl = Event::Special("\x1B[1;5C");
 const Event Event::ArrowUpCtrl    = Event::Special("\x1B[1;5A");
 const Event Event::ArrowDownCtrl  = Event::Special("\x1B[1;5B");
-const Event Event::Backspace      = Event::Special(std::string({127}));
+const Event Event::Backspace      = Event::Special({127});
 const Event Event::Delete         = Event::Special("\x1B[3~");
 const Event Event::Escape         = Event::Special("\x1B");
-const Event Event::Return         = Event::Special(std::string({10}));
+const Event Event::Return         = Event::Special({10});
-const Event Event::Tab            = Event::Special(std::string({9}));
+const Event Event::Tab            = Event::Special({9});
-const Event Event::TabReverse     = Event::Special(std::string({27, 91, 90}));
+const Event Event::TabReverse     = Event::Special({27, 91, 90});
 
 // See https://invisible-island.net/xterm/xterm-function-keys.html
 // We follow xterm-new / vterm-xf86-v4 / mgt / screen
@@ -315,11 +315,11 @@ const Event Event::F11 = Event::Special("\x1B[23~");
 const Event Event::F12 = Event::Special("\x1B[24~");
 
 const Event Event::Insert   = Event::Special("\x1B[2~");
-const Event Event::Home     = Event::Special(std::string({27, 91, 72}));
+const Event Event::Home     = Event::Special({27, 91, 72});
-const Event Event::End      = Event::Special(std::string({27, 91, 70}));
+const Event Event::End      = Event::Special({27, 91, 70});
-const Event Event::PageUp   = Event::Special(std::string({27, 91, 53, 126}));
+const Event Event::PageUp   = Event::Special({27, 91, 53, 126});
-const Event Event::PageDown = Event::Special(std::string({27, 91, 54, 126}));
+const Event Event::PageDown = Event::Special({27, 91, 54, 126});
-const Event Event::Custom   = Event::Special(std::string({0}));
+const Event Event::Custom   = Event::Special({0});
 
 const Event Event::a = Event::Character("a");
 const Event Event::b = Event::Character("b");

src/ftxui/component/event.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Event
+/// @module ftxui.component.event
 /// @brief Module file for the Event struct of the Component module
 
 module;
 
 #include <ftxui/component/event.hpp>
 
-export module ftxui.component:Event;
+export module ftxui.component.event;
 
 /**
  * @namespace ftxui

src/ftxui/component/input.cpp

@@ -173,7 +173,7 @@ class InputBase : public ComponentBase, public InputOption {
       elements.push_back(element);
     }
 
-    auto element = vbox(std::move(elements)) | frame;
+    auto element = vbox(std::move(elements), cursor_line) | frame;
     return transform_func({
                std::move(element), hovered_, is_focused,
                false  // placeholder

src/ftxui/component/loop.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Loop
+/// @module ftxui.component.loop
 /// @brief Module file for the Loop class of the Component module
 
 module;
 
 #include <ftxui/component/loop.hpp>
 
-export module ftxui.component:Loop;
+export module ftxui.component.loop;
 
 /**
  * @namespace ftxui

src/ftxui/component/menu.cpp

@@ -123,7 +123,7 @@ class MenuBase : public ComponentBase, public MenuOption {
       const bool is_selected = (selected() == i);
 
       const EntryState state = {
-        std::string(entries[i]), false, is_selected, is_focused, i,
+          entries[i], false, is_selected, is_focused, i,
       };
 
       Element element = (entries_option.transform ? entries_option.transform
@@ -144,8 +144,9 @@ class MenuBase : public ComponentBase, public MenuOption {
       std::reverse(elements.begin(), elements.end());
     }
 
-    const Element bar =
+    const Element bar = IsHorizontal()
-        IsHorizontal() ? hbox(std::move(elements)) : vbox(std::move(elements));
+                            ? hbox(std::move(elements), selected_focus_)
+                            : vbox(std::move(elements), selected_focus_);
 
     if (!underline.enabled) {
       return bar | reflect(box_);
@@ -622,7 +623,7 @@ Component MenuEntry(MenuEntryOption option) {
       UpdateAnimationTarget();
 
       const EntryState state{
-          std::string(label()), false, hovered_, is_focused, Index(),
+          label(), false, hovered_, is_focused, Index(),
       };
 
       Element element = (transform ? transform : DefaultOptionTransform)  //

src/ftxui/component/mouse.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Mouse
+/// @module ftxui.component.mouse
 /// @brief Module file for the Mouse struct of the Component module
 
 module;
 
 #include <ftxui/component/mouse.hpp>
 
-export module ftxui.component:Mouse;
+export module ftxui.component.mouse;
 
 /**
  * @namespace ftxui

src/ftxui/component/radiobox.cpp

@@ -37,7 +37,7 @@ class RadioboxBase : public ComponentBase, public RadioboxOption {
       const bool is_focused = (focused_entry() == i) && is_menu_focused;
       const bool is_selected = (hovered_ == i);
       auto state = EntryState{
-          std::string(entries[i]), selected() == i, is_selected, is_focused, i,
+          entries[i], selected() == i, is_selected, is_focused, i,
       };
       auto element =
           (transform ? transform : RadioboxOption::Simple().transform)(state);
@@ -46,7 +46,7 @@ class RadioboxBase : public ComponentBase, public RadioboxOption {
       }
       elements.push_back(element | reflect(boxes_[i]));
     }
-    return vbox(std::move(elements)) | reflect(box_);
+    return vbox(std::move(elements), hovered_) | reflect(box_);
   }
 
   // NOLINTNEXTLINE(readability-function-cognitive-complexity)

src/ftxui/component/receiver.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Receiver
+/// @module ftxui.component.receiver
 /// @brief Module file for the Receiver class of the Component module
 
 module;
 
 #include <ftxui/component/receiver.hpp>
 
-export module ftxui.component:Receiver;
+export module ftxui.component.receiver;
 
 /**
  * @namespace ftxui

src/ftxui/component/resizable_split.cpp

@@ -1,7 +1,6 @@
 // Copyright 2021 Arthur Sonzogni. All rights reserved.
 // Use of this source code is governed by the MIT license that can be found in
 // the LICENSE file.
-#include <algorithm>                              // for max
 #include <ftxui/component/component_options.hpp>  // for ResizableSplitOption
 #include <ftxui/dom/direction.hpp>  // for Direction, Direction::Down, Direction::Left, Direction::Right, Direction::Up
 #include <ftxui/util/ref.hpp>       // for Ref
@@ -19,22 +18,34 @@
 namespace ftxui {
 namespace {
 
-class ResizableSplitBase : public ComponentBase, public ResizableSplitOption {
+class ResizableSplitBase : public ComponentBase {
  public:
   explicit ResizableSplitBase(ResizableSplitOption options)
-      : ResizableSplitOption(std::move(options)) {
+      : options_(std::move(options)) {
-    switch (direction()) {
+    switch (options_->direction()) {
       case Direction::Left:
-        Add(Container::Horizontal({main, back}));
+        Add(Container::Horizontal({
+            options_->main,
+            options_->back,
+        }));
         break;
       case Direction::Right:
-        Add(Container::Horizontal({back, main}));
+        Add(Container::Horizontal({
+            options_->back,
+            options_->main,
+        }));
         break;
       case Direction::Up:
-        Add(Container::Vertical({main, back}));
+        Add(Container::Vertical({
+            options_->main,
+            options_->back,
+        }));
         break;
       case Direction::Down:
-        Add(Container::Vertical({back, main}));
+        Add(Container::Vertical({
+            options_->back,
+            options_->main,
+        }));
         break;
     }
   }
@@ -64,27 +75,27 @@ class ResizableSplitBase : public ComponentBase, public ResizableSplitOption {
       return ComponentBase::OnEvent(event);
     }
 
-    switch (direction()) {
+    switch (options_->direction()) {
       case Direction::Left:
-        main_size() = std::max(0, event.mouse().x - box_.x_min);
+        options_->main_size() = std::max(0, event.mouse().x - box_.x_min);
-        break;
+        return true;
       case Direction::Right:
-        main_size() = std::max(0, box_.x_max - event.mouse().x);
+        options_->main_size() = std::max(0, box_.x_max - event.mouse().x);
-        break;
+        return true;
       case Direction::Up:
-        main_size() = std::max(0, event.mouse().y - box_.y_min);
+        options_->main_size() = std::max(0, event.mouse().y - box_.y_min);
-        break;
+        return true;
       case Direction::Down:
-        main_size() = std::max(0, box_.y_max - event.mouse().y);
+        options_->main_size() = std::max(0, box_.y_max - event.mouse().y);
-        break;
+        return true;
     }
 
-    main_size() = std::clamp(main_size(), min(), max());
+    // NOTREACHED()
-    return true;
+    return false;
   }
 
   Element OnRender() final {
-    switch (direction()) {
+    switch (options_->direction()) {
       case Direction::Left:
         return RenderLeft();
       case Direction::Right:
@@ -100,41 +111,46 @@ class ResizableSplitBase : public ComponentBase, public ResizableSplitOption {
 
   Element RenderLeft() {
     return hbox({
-               main->Render() | size(WIDTH, EQUAL, main_size()),
+               options_->main->Render() |
-               separator_func() | reflect(separator_box_),
+                   size(WIDTH, EQUAL, options_->main_size()),
-               back->Render() | xflex,
+               options_->separator_func() | reflect(separator_box_),
+               options_->back->Render() | xflex,
            }) |
            reflect(box_);
   }
 
   Element RenderRight() {
     return hbox({
-               back->Render() | xflex,
+               options_->back->Render() | xflex,
-               separator_func() | reflect(separator_box_),
+               options_->separator_func() | reflect(separator_box_),
-               main->Render() | size(WIDTH, EQUAL, main_size()),
+               options_->main->Render() |
+                   size(WIDTH, EQUAL, options_->main_size()),
            }) |
            reflect(box_);
   }
 
   Element RenderTop() {
     return vbox({
-               main->Render() | size(HEIGHT, EQUAL, main_size()),
+               options_->main->Render() |
-               separator_func() | reflect(separator_box_),
+                   size(HEIGHT, EQUAL, options_->main_size()),
-               back->Render() | yflex,
+               options_->separator_func() | reflect(separator_box_),
+               options_->back->Render() | yflex,
            }) |
            reflect(box_);
   }
 
   Element RenderBottom() {
     return vbox({
-               back->Render() | yflex,
+               options_->back->Render() | yflex,
-               separator_func() | reflect(separator_box_),
+               options_->separator_func() | reflect(separator_box_),
-               main->Render() | size(HEIGHT, EQUAL, main_size()),
+               options_->main->Render() |
+                   size(HEIGHT, EQUAL, options_->main_size()),
            }) |
            reflect(box_);
   }
 
  private:
+  Ref<ResizableSplitOption> options_;
   CapturedMouse captured_mouse_;
   Box separator_box_;
   Box box_;

src/ftxui/component/resizable_split_test.cpp

@@ -233,105 +233,5 @@ TEST(ResizableSplit, NavigationVertical) {
   EXPECT_FALSE(component_bottom->Active());
 }
 
-TEST(ResizableSplit, MinMaxSizeLeft) {
-  int position = 5;
-  auto component = ResizableSplit({
-      .main = BasicComponent(),
-      .back = BasicComponent(),
-      .direction = Direction::Left,
-      .main_size = &position,
-      .separator_func = [] { return separatorDouble(); },
-      .min = 3,
-      .max = 8,
-  });
-  auto screen = Screen(20, 20);
-  Render(screen, component->Render());
-  EXPECT_EQ(position, 5);
-  EXPECT_TRUE(component->OnEvent(MousePressed(5, 1)));
-  EXPECT_EQ(position, 5);
-  // Try to resize below min
-  EXPECT_TRUE(component->OnEvent(MousePressed(2, 1)));
-  EXPECT_EQ(position, 3);  // Clamped to min
-  // Try to resize above max
-  EXPECT_TRUE(component->OnEvent(MousePressed(10, 1)));
-  EXPECT_EQ(position, 8);  // Clamped to max
-  EXPECT_TRUE(component->OnEvent(MouseReleased(10, 1)));
-  EXPECT_EQ(position, 8);
-}
-
-TEST(ResizableSplit, MinMaxSizeRight) {
-  int position = 5;
-  auto component = ResizableSplit({
-      .main = BasicComponent(),
-      .back = BasicComponent(),
-      .direction = Direction::Right,
-      .main_size = &position,
-      .separator_func = [] { return separatorDouble(); },
-      .min = 3,
-      .max = 8,
-  });
-  auto screen = Screen(20, 20);
-  Render(screen, component->Render());
-  EXPECT_EQ(position, 5);
-  EXPECT_TRUE(component->OnEvent(MousePressed(14, 1)));
-  EXPECT_EQ(position, 5);
-  // Try to resize below min
-  EXPECT_TRUE(component->OnEvent(MousePressed(18, 1)));
-  EXPECT_EQ(position, 3);  // Clamped to min
-  // Try to resize above max
-  EXPECT_TRUE(component->OnEvent(MousePressed(10, 1)));
-  EXPECT_EQ(position, 8);  // Clamped to max
-  EXPECT_TRUE(component->OnEvent(MouseReleased(10, 1)));
-  EXPECT_EQ(position, 8);
-}
-
-TEST(ResizableSplit, MinMaxSizeTop) {
-  int position = 5;
-  auto component = ResizableSplit({
-      .main = BasicComponent(),
-      .back = BasicComponent(),
-      .direction = Direction::Up,
-      .main_size = &position,
-      .separator_func = [] { return separatorDouble(); },
-      .min = 2,
-      .max = 10,
-  });
-  auto screen = Screen(20, 20);
-  Render(screen, component->Render());
-  EXPECT_EQ(position, 5);
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 5)));
-  EXPECT_EQ(position, 5);
-  // Try to resize below min
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 1)));
-  EXPECT_EQ(position, 2);  // Clamped to min
-  // Try to resize above max
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 15)));
-  EXPECT_EQ(position, 10);  // Clamped to max
-}
-
-TEST(ResizableSplit, MinMaxSizeBottom) {
-  int position = 5;
-  auto component = ResizableSplit({
-      .main = BasicComponent(),
-      .back = BasicComponent(),
-      .direction = Direction::Down,
-      .main_size = &position,
-      .separator_func = [] { return separatorDouble(); },
-      .min = 3,
-      .max = 12,
-  });
-  auto screen = Screen(20, 20);
-  Render(screen, component->Render());
-  EXPECT_EQ(position, 5);
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 14)));
-  EXPECT_EQ(position, 5);
-  // Try to resize below min
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 18)));
-  EXPECT_EQ(position, 3);  // Clamped to min
-  // Try to resize above max
-  EXPECT_TRUE(component->OnEvent(MousePressed(1, 5)));
-  EXPECT_EQ(position, 12);  // Clamped to max
-}
-
 }  // namespace ftxui
 // NOLINTEND

src/ftxui/component/screen_interactive.cpp

@@ -115,7 +115,7 @@ void ftxui_on_resize(int columns, int rows) {
 int CheckStdinReady(int fd) {
   timeval tv = {0, 0};  // NOLINT
   fd_set fds;
-  FD_ZERO(&fds);                                // NOLINT
+  FD_ZERO(&fds);                                          // NOLINT
   FD_SET(fd, &fds);                             // NOLINT
   select(fd + 1, &fds, nullptr, nullptr, &tv);  // NOLINT
   return FD_ISSET(fd, &fds);                    // NOLINT
@@ -679,8 +679,8 @@ void ScreenInteractive::Install() {
 }
 
 void ScreenInteractive::InstallPipedInputHandling() {
+  tty_fd_ = fileno(stdin);  // NOLINT
 #if !defined(_WIN32) && !defined(__EMSCRIPTEN__)
-  tty_fd_ = STDIN_FILENO;
   // Handle piped input redirection if explicitly enabled by the application.
   // This allows applications to read data from stdin while still receiving
   // keyboard input from the terminal for interactive use.
@@ -689,7 +689,7 @@ void ScreenInteractive::InstallPipedInputHandling() {
   }
 
   // If stdin is a terminal, we don't need to open /dev/tty.
-  if (isatty(STDIN_FILENO)) {
+  if (isatty(fileno(stdin))) {
     return;
   }
 
@@ -697,7 +697,7 @@ void ScreenInteractive::InstallPipedInputHandling() {
   tty_fd_ = open("/dev/tty", O_RDONLY);
   if (tty_fd_ < 0) {
     // Failed to open /dev/tty (containers, headless systems, etc.)
-    tty_fd_ = STDIN_FILENO;  // Fallback to stdin.
+    tty_fd_ = fileno(stdin);  // Fallback to stdin.
     return;
   }
 
@@ -1054,7 +1054,7 @@ void ScreenInteractive::Signal(int signal) {
   }
 
   if (signal == SIGWINCH) {
-    Post(Event::Special(std::string({0})));
+    Post(Event::Special({0}));
     return;
   }
 #endif
@@ -1098,7 +1098,6 @@ void ScreenInteractive::FetchTerminalEvents() {
   // Convert the input events to FTXUI events.
   // For each event, we call the terminal input parser to convert it to
   // Event.
-  std::wstring wstring;
   for (const auto& r : records) {
     switch (r.EventType) {
       case KEY_EVENT: {
@@ -1107,16 +1106,11 @@ void ScreenInteractive::FetchTerminalEvents() {
         if (key_event.bKeyDown == FALSE) {
           continue;
         }
-        const wchar_t wc = key_event.uChar.UnicodeChar;
+        std::wstring wstring;
-        wstring += wc;
+        wstring += key_event.uChar.UnicodeChar;
-        if (wc >= 0xd800 && wc <= 0xdbff) {
-          // Wait for the Low Surrogate to arrive in the next record.
-          continue;
-        }
         for (auto it : to_string(wstring)) {
           internal_->terminal_input_parser.Add(it);
         }
-        wstring.clear();
       } break;
       case WINDOW_BUFFER_SIZE_EVENT:
         Post(Event::Special({0}));

src/ftxui/component/screen_interactive.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:ScreenInteractive
+/// @module ftxui.component.screen_interactive
 /// @brief Module file for the ScreenInteractive class of the Component module
 
 module;
 
 #include <ftxui/component/screen_interactive.hpp>
 
-export module ftxui.component:ScreenInteractive;
+export module ftxui.component.screen_interactive;
 
 /**
  * @namespace ftxui

src/ftxui/component/screen_interactive_piped_input_test.cpp

@@ -1,11 +1,11 @@
 // Copyright 2025 Arthur Sonzogni. All rights reserved.
 // Use of this source code is governed by the MIT license that can be found in
 // the LICENSE file.
-#include <fcntl.h>
 #include <gtest/gtest.h>
-#include <sys/stat.h>
 #include <unistd.h>
+#include <fcntl.h>
 #include <cstdio>
+#include <sys/stat.h>
 
 #include "ftxui/component/component.hpp"
 #include "ftxui/component/screen_interactive.hpp"
@@ -47,7 +47,7 @@ class PipedInputTest : public ::testing::Test {
   void WriteToPipedStdin(const std::string& data) {
     if (piped_stdin_setup_) {
       write(pipe_fds_[1], data.c_str(), data.length());
-      close(pipe_fds_[1]);  // Close write end to signal EOF
+      close(pipe_fds_[1]); // Close write end to signal EOF
     }
   }
 
@@ -94,10 +94,10 @@ TEST_F(PipedInputTest, ExplicitlyDisabled) {
   WriteToPipedStdin("test data\n");
 
   screen.Install();
-
+  
   // Stdin should still be the pipe since feature is disabled
   EXPECT_FALSE(isatty(STDIN_FILENO));
-
+  
   screen.Uninstall();
 }
 
@@ -107,7 +107,7 @@ TEST_F(PipedInputTest, ExplicitlyEnabled) {
   }
 
   auto screen = ScreenInteractive::TerminalOutput();
-  screen.HandlePipedInput(true);  // Explicitly enable
+  screen.HandlePipedInput(true); // Explicitly enable
   auto component = Renderer([] { return text("test"); });
 
   SetupPipedStdin();
@@ -117,12 +117,12 @@ TEST_F(PipedInputTest, ExplicitlyEnabled) {
   EXPECT_FALSE(isatty(STDIN_FILENO));
 
   screen.Install();
-
+  
   // After install with piped input handling: stdin should be redirected to tty
   EXPECT_TRUE(isatty(STDIN_FILENO));
-
+  
   screen.Uninstall();
-
+  
   // After uninstall: stdin should be restored to original state
   // Note: This will be the pipe we set up, so it should be non-tty
   EXPECT_FALSE(isatty(STDIN_FILENO));
@@ -137,12 +137,12 @@ TEST_F(PipedInputTest, NormalStdinUnchanged) {
   bool original_isatty = isatty(STDIN_FILENO);
 
   screen.Install();
-
+  
   // Stdin should remain unchanged
   EXPECT_EQ(original_isatty, isatty(STDIN_FILENO));
-
+  
   screen.Uninstall();
-
+  
   // Stdin should still be unchanged
   EXPECT_EQ(original_isatty, isatty(STDIN_FILENO));
 }
@@ -173,12 +173,12 @@ TEST_F(PipedInputTest, MultipleInstallUninstallCycles) {
 
 TEST_F(PipedInputTest, HandlePipedInputMethodBehavior) {
   auto screen = ScreenInteractive::TerminalOutput();
-
+  
   // Test method can be called multiple times
   screen.HandlePipedInput(true);
   screen.HandlePipedInput(false);
   screen.HandlePipedInput(true);
-
+  
   // Should be enabled after last call
   SetupPipedStdin();
   WriteToPipedStdin("test data\n");
@@ -191,8 +191,7 @@ TEST_F(PipedInputTest, HandlePipedInputMethodBehavior) {
 }
 
 // Test the graceful fallback when /dev/tty is not available
-// This test simulates environments like containers where /dev/tty might not
+// This test simulates environments like containers where /dev/tty might not exist
-// exist
 TEST_F(PipedInputTest, GracefulFallbackWhenTtyUnavailable) {
   auto screen = ScreenInteractive::TerminalOutput();
   auto component = Renderer([] { return text("test"); });
@@ -200,23 +199,22 @@ TEST_F(PipedInputTest, GracefulFallbackWhenTtyUnavailable) {
   SetupPipedStdin();
   WriteToPipedStdin("test data\n");
 
-  // This test doesn't directly mock /dev/tty unavailability since that's hard
+  // This test doesn't directly mock /dev/tty unavailability since that's hard to do
-  // to do in a unit test environment, but the code path handles freopen()
+  // in a unit test environment, but the code path handles freopen() failure gracefully
-  // failure gracefully
   screen.Install();
-
+  
   // The behavior depends on whether /dev/tty is available
   // If available, stdin gets redirected; if not, it remains piped
   // Both behaviors are correct
-
+  
   screen.Uninstall();
-
+  
   // After uninstall, stdin should be restored
-  EXPECT_FALSE(isatty(STDIN_FILENO));  // Should still be our test pipe
+  EXPECT_FALSE(isatty(STDIN_FILENO)); // Should still be our test pipe
 }
 
 }  // namespace
 
 }  // namespace ftxui
 
-#endif  // !defined(_WIN32) && !defined(__EMSCRIPTEN__)
+#endif  // !defined(_WIN32) && !defined(__EMSCRIPTEN__)

src/ftxui/component/task.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.component:Task
+/// @module ftxui.component.task
 /// @brief Module file for the Task class of the Component module
 
 module;
 
 #include <ftxui/component/task.hpp>
 
-export module ftxui.component:Task;
+export module ftxui.component.task;
 
 /**
  * @namespace ftxui

src/ftxui/component/terminal_input_parser_test.cpp

@@ -338,7 +338,7 @@ TEST(Event, Control) {
       EXPECT_TRUE(received_events.empty());
     } else {
       EXPECT_EQ(1, received_events.size());
-      EXPECT_EQ(received_events[0], Event::Special(std::string({test.input})));
+      EXPECT_EQ(received_events[0], Event::Special({test.input}));
     }
   }
 }

src/ftxui/dom.cppm

@@ -1,15 +1,15 @@
 /// @module ftxui.dom
-/// @brief Module file for FTXUI DOM operations.
+/// @brief Module file for FTXUI main operations.
 
 export module ftxui.dom;
 
-export import :Canvas;
+export import ftxui.dom.canvas;
-export import :Deprecated;
+export import ftxui.dom.deprecated;
-export import :Direction;
+export import ftxui.dom.direction;
-export import :Elements;
+export import ftxui.dom.elements;
-export import :FlexboxConfig;
+export import ftxui.dom.flexbox_config;
-export import :LinearGradient;
+export import ftxui.dom.linear_gradient;
-export import :Node;
+export import ftxui.dom.node;
-export import :Requirement;
+export import ftxui.dom.requirement;
-export import :Selection;
+export import ftxui.dom.selection;
-export import :Table;
+export import ftxui.dom.table;

src/ftxui/dom/box_helper.cpp

@@ -4,18 +4,11 @@
 #include "ftxui/dom/box_helper.hpp"
 
 #include <algorithm>  // for max
-#include <cstdint>
+#include <vector>     // for vector
-#include <vector>  // for vector
 
 namespace ftxui::box_helper {
 
 namespace {
-
-int SafeRatio(int value, int numerator, int denominator) {
-  return static_cast<int64_t>(value) * static_cast<int64_t>(numerator) /
-         std::max(static_cast<int64_t>(denominator), static_cast<int64_t>(1));
-}
-
 // Called when the size allowed is greater than the requested size. This
 // distributes the extra spaces toward the flexible elements, in relative
 // proportions.
@@ -24,7 +17,7 @@ void ComputeGrow(std::vector<Element>* elements,
                  int flex_grow_sum) {
   for (Element& element : *elements) {
     const int added_space =
-        SafeRatio(extra_space, element.flex_grow, flex_grow_sum);
+        extra_space * element.flex_grow / std::max(flex_grow_sum, 1);
     extra_space -= added_space;
     flex_grow_sum -= element.flex_grow;
     element.size = element.min_size + added_space;
@@ -38,8 +31,8 @@ void ComputeShrinkEasy(std::vector<Element>* elements,
                        int extra_space,
                        int flex_shrink_sum) {
   for (Element& element : *elements) {
-    const int added_space = SafeRatio(
+    const int added_space = extra_space * element.min_size *
-        extra_space, element.min_size * element.flex_shrink, flex_shrink_sum);
+                            element.flex_shrink / std::max(flex_shrink_sum, 1);
     extra_space -= added_space;
     flex_shrink_sum -= element.flex_shrink * element.min_size;
     element.size = element.min_size + added_space;
@@ -47,7 +40,7 @@ void ComputeShrinkEasy(std::vector<Element>* elements,
 }
 
 // Called when the size allowed is lower than the requested size, and the
-// shrinkable element can not absorb the (negative) extra_space. This assigns
+// shrinkable element can not absorbe the (negative) extra_space. This assign
 // zero to shrinkable elements and distribute the remaining (negative)
 // extra_space toward the other non shrinkable elements.
 void ComputeShrinkHard(std::vector<Element>* elements,
@@ -59,8 +52,7 @@ void ComputeShrinkHard(std::vector<Element>* elements,
       continue;
     }
 
-    const int added_space = SafeRatio(extra_space, element.min_size, size);
+    const int added_space = extra_space * element.min_size / std::max(1, size);
-
     extra_space -= added_space;
     size -= element.min_size;
 

src/ftxui/dom/canvas.cpp

@@ -782,7 +782,7 @@ void Canvas::DrawBlockEllipseFilled(int x1,
 /// @param x the x coordinate of the text.
 /// @param y the y coordinate of the text.
 /// @param value the text to draw.
-void Canvas::DrawText(int x, int y, std::string_view value) {
+void Canvas::DrawText(int x, int y, const std::string& value) {
   DrawText(x, y, value, nostyle);
 }
 
@@ -793,7 +793,7 @@ void Canvas::DrawText(int x, int y, std::string_view value) {
 /// @param color the color of the text.
 void Canvas::DrawText(int x,
                       int y,
-                      std::string_view value,
+                      const std::string& value,
                       const Color& color) {
   DrawText(x, y, value, [color](Pixel& p) { p.foreground_color = color; });
 }
@@ -805,7 +805,7 @@ void Canvas::DrawText(int x,
 /// @param style the style of the text.
 void Canvas::DrawText(int x,
                       int y,
-                      std::string_view value,
+                      const std::string& value,
                       const Stylizer& style) {
   for (const auto& it : Utf8ToGlyphs(value)) {
     if (!IsIn(x, y)) {

src/ftxui/dom/canvas.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Canvas
+/// @module ftxui.dom.canvas
-/// @brief Module file for the Canvas struct of the DOM module
+/// @brief Module file for the Canvas struct of the Dom module
 
 module;
 
 #include <ftxui/dom/canvas.hpp>
 
-export module ftxui.dom:Canvas;
+export module ftxui.dom.canvas;
 
 /**
  * @namespace ftxui

src/ftxui/dom/deprecated.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Deprecated
+/// @module ftxui.dom.deprecated
-/// @brief Module file for deprecated parts of the DOM module
+/// @brief Module file for deprecated parts of the Dom module
 
 module;
 
 #include <ftxui/dom/deprecated.hpp>
 
-export module ftxui.dom:Deprecated;
+export module ftxui.dom.deprecated;
 
 /**
  * @namespace ftxui

src/ftxui/dom/direction.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Direction
+/// @module ftxui.dom.direction
 /// @brief Module file for the Direction enum of the Dom module
 
 module;
 
 #include <ftxui/dom/direction.hpp>
 
-export module ftxui.dom:Direction;
+export module ftxui.dom.direction;
 
 /**
  * @namespace ftxui

src/ftxui/dom/elements.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Elements
+/// @module ftxui.dom.elements
-/// @brief Module file for the Element classes and functions of the DOM module
+/// @brief Module file for the Element classes and functions of the Dom module
 
 module;
 
 #include <ftxui/dom/elements.hpp>
 
-export module ftxui.dom:Elements;
+export module ftxui.dom.elements;
 
 /**
  * @namespace ftxui

src/ftxui/dom/flexbox_config.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:FlexboxConfig
+/// @module ftxui.dom.flexbox_config
-/// @brief Module file for the FlexboxConfig struct of the DOM module
+/// @brief Module file for the FlexboxConfig struct of the Dom module
 
 module;
 
 #include <ftxui/dom/flexbox_config.hpp>
 
-export module ftxui.dom:FlexboxConfig;
+export module ftxui.dom.flexbox_config;
 
 /**
  * @namespace ftxui

src/ftxui/dom/hbox_test.cpp

@@ -2,13 +2,9 @@
 // Use of this source code is governed by the MIT license that can be found in
 // the LICENSE file.
 #include <gtest/gtest.h>  // for Test, TestInfo (ptr only), EXPECT_EQ, Message, TEST, TestPartResult
-#include <array>    // for array
 #include <cstddef>  // for size_t
-#include <queue>
+#include <string>   // for allocator, basic_string, string
-#include <stack>          // for stack
+#include <vector>   // for vector
-#include <string>         // for allocator, basic_string, string
-#include <unordered_set>  // for unordered_set
-#include <vector>         // for vector
 
 #include "ftxui/dom/elements.hpp"  // for text, operator|, Element, flex_grow, flex_shrink, hbox
 #include "ftxui/dom/node.hpp"       // for Render
@@ -362,39 +358,5 @@ TEST(HBoxTest, FlexGrow_NoFlex_FlewShrink) {
   }
 }
 
-TEST(HBoxTest, FromElementsContainer) {
-  Elements elements_vector{text("0"), text("1")};
-
-  std::array<Element, 2> elements_array{text("0"), text("1")};
-
-  std::deque<Element> elements_deque{text("0"), text("1")};
-
-  std::stack<Element> elements_stack;
-  elements_stack.push(text("1"));
-  elements_stack.push(text("0"));
-
-  std::queue<Element> elements_queue;
-  elements_queue.emplace(text("0"));
-  elements_queue.emplace(text("1"));
-
-  const std::vector<Element> collection_hboxes{
-      hbox(std::move(elements_vector)), hbox(std::move(elements_array)),
-      hbox(std::move(elements_stack)),  hbox(std::move(elements_deque)),
-      hbox(std::move(elements_queue)),
-  };
-
-  for (const Element& collection_hbox : collection_hboxes) {
-    Screen screen(2, 1);
-    Render(screen, collection_hbox);
-    EXPECT_EQ("01", screen.ToString());
-  }
-
-  // Exception: unordered set, which has no guaranteed order.
-  std::unordered_set<Element> elements_set{text("0"), text("0")};
-  Screen screen(2, 1);
-  Render(screen, hbox(elements_set));
-  EXPECT_EQ("00", screen.ToString());
-};
-
 }  // namespace ftxui
 // NOLINTEND

src/ftxui/dom/hyperlink.cpp

@@ -48,8 +48,8 @@ class Hyperlink : public NodeDecorator {
 /// Element document =
 ///   hyperlink("https://github.com/ArthurSonzogni/FTXUI", "link");
 /// ```
-Element hyperlink(std::string_view link, Element child) {
+Element hyperlink(std::string link, Element child) {
-  return std::make_shared<Hyperlink>(std::move(child), std::string(link));
+  return std::make_shared<Hyperlink>(std::move(child), std::move(link));
 }
 
 /// @brief Decorate using a hyperlink.
@@ -67,10 +67,8 @@ Element hyperlink(std::string_view link, Element child) {
 ///   text("red") | hyperlink("https://github.com/Arthursonzogni/FTXUI");
 /// ```
 // NOLINTNEXTLINE
-Decorator hyperlink(std::string_view link) {
+Decorator hyperlink(std::string link) {
-  return [link = std::string(link)](Element child) {
+  return [link](Element child) { return hyperlink(link, std::move(child)); };
-    return hyperlink(link, std::move(child));
-  };
 }
 
 }  // namespace ftxui

src/ftxui/dom/linear_gradient.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:LinearGradient
+/// @module ftxui.dom.linear_gradient
-/// @brief Module file for the LinearGradient struct of the DOM module
+/// @brief Module file for the LinearGradient struct of the Dom module
 
 module;
 
 #include <ftxui/dom/linear_gradient.hpp>
 
-export module ftxui.dom:LinearGradient;
+export module ftxui.dom.linear_gradient;
 
 /**
  * @namespace ftxui

src/ftxui/dom/node.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Node
+/// @module ftxui.dom.node
-/// @brief Module file for the Node class of the DOM module
+/// @brief Module file for the Node class of the Dom module
 
 module;
 
 #include <ftxui/dom/node.hpp>
 
-export module ftxui.dom:Node;
+export module ftxui.dom.node;
 
 /**
  * @namespace ftxui

src/ftxui/dom/paragraph.cpp

@@ -38,7 +38,7 @@ Element Split(const std::string& paragraph,
 /// @brief Return an element drawing the paragraph on multiple lines.
 /// @ingroup dom
 /// @see flexbox.
-Element paragraph(std::string_view the_text) {
+Element paragraph(const std::string& the_text) {
   return paragraphAlignLeft(the_text);
 }
 
@@ -46,8 +46,8 @@ Element paragraph(std::string_view the_text) {
 /// the left.
 /// @ingroup dom
 /// @see flexbox.
-Element paragraphAlignLeft(std::string_view the_text) {
+Element paragraphAlignLeft(const std::string& the_text) {
-  return Split(std::string(the_text), [](const std::string& line) {
+  return Split(the_text, [](const std::string& line) {
     static const auto config = FlexboxConfig().SetGap(1, 0);
     return flexbox(Split(line), config);
   });
@@ -57,8 +57,8 @@ Element paragraphAlignLeft(std::string_view the_text) {
 /// the right.
 /// @ingroup dom
 /// @see flexbox.
-Element paragraphAlignRight(std::string_view the_text) {
+Element paragraphAlignRight(const std::string& the_text) {
-  return Split(std::string(the_text), [](const std::string& line) {
+  return Split(the_text, [](const std::string& line) {
     static const auto config = FlexboxConfig().SetGap(1, 0).Set(
         FlexboxConfig::JustifyContent::FlexEnd);
     return flexbox(Split(line), config);
@@ -69,8 +69,8 @@ Element paragraphAlignRight(std::string_view the_text) {
 /// the center.
 /// @ingroup dom
 /// @see flexbox.
-Element paragraphAlignCenter(std::string_view the_text) {
+Element paragraphAlignCenter(const std::string& the_text) {
-  return Split(std::string(the_text), [](const std::string& line) {
+  return Split(the_text, [](const std::string& line) {
     static const auto config =
         FlexboxConfig().SetGap(1, 0).Set(FlexboxConfig::JustifyContent::Center);
     return flexbox(Split(line), config);
@@ -82,8 +82,8 @@ Element paragraphAlignCenter(std::string_view the_text) {
 /// the center.
 /// @ingroup dom
 /// @see flexbox.
-Element paragraphAlignJustify(std::string_view the_text) {
+Element paragraphAlignJustify(const std::string& the_text) {
-  return Split(std::string(the_text), [](const std::string& line) {
+  return Split(the_text, [](const std::string& line) {
     static const auto config = FlexboxConfig().SetGap(1, 0).Set(
         FlexboxConfig::JustifyContent::SpaceBetween);
     Elements words = Split(line);

src/ftxui/dom/requirement.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Requirement
+/// @module ftxui.dom.requirement
-/// @brief Module file for the Requirement struct of the DOM module
+/// @brief Module file for the Requirement struct of the Dom module
 
 module;
 
 #include <ftxui/dom/requirement.hpp>
 
-export module ftxui.dom:Requirement;
+export module ftxui.dom.requirement;
 
 /**
  * @namespace ftxui

src/ftxui/dom/selection.cpp

@@ -143,7 +143,7 @@ Selection Selection::SaturateVertical(Box box) {
   return {start_x, start_y, end_x, end_y, parent_};
 }
 
-void Selection::AddPart(std::string_view part, int y, int left, int right) {
+void Selection::AddPart(const std::string& part, int y, int left, int right) {
   if (parent_ != this) {
     parent_->AddPart(part, y, left, right);
     return;

src/ftxui/dom/selection.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Selection
+/// @module ftxui.dom.selection
-/// @brief Module file for the Selection class of the DOM module
+/// @brief Module file for the Selection class of the Dom module
 
 module;
 
 #include <ftxui/dom/selection.hpp>
 
-export module ftxui.dom:Selection;
+export module ftxui.dom.selection;
 
 /**
  * @namespace ftxui

src/ftxui/dom/separator.cpp

@@ -392,8 +392,8 @@ Element separatorEmpty() {
 /// ────
 /// down
 /// ```
-Element separatorCharacter(std::string_view value) {
+Element separatorCharacter(std::string value) {
-  return std::make_shared<Separator>(std::string(value));
+  return std::make_shared<Separator>(std::move(value));
 }
 
 /// @brief Draw a separator in between two element filled with a given pixel.

src/ftxui/dom/size.cpp

@@ -81,7 +81,7 @@ class Size : public Node {
 }  // namespace
 
 /// @brief Apply a constraint on the size of an element.
-/// @param direction Whether the WIDTH or the HEIGHT of the element must be
+/// @param direction Whether the WIDTH of the HEIGHT of the element must be
 ///                  constrained.
 /// @param constraint The type of constaint.
 /// @param value The value.

src/ftxui/dom/table.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.dom:Table
+/// @module ftxui.dom.table
-/// @brief Module file for the Table class of the DOM module
+/// @brief Module file for the Table class of the Dom module
 
 module;
 
 #include <ftxui/dom/table.hpp>
 
-export module ftxui.dom:Table;
+export module ftxui.dom.table;
 
 /**
  * @namespace ftxui

src/ftxui/dom/table_test.cpp

@@ -25,12 +25,12 @@ TEST(TableTest, Empty) {
 }
 
 TEST(TableTest, Basic) {
-  auto table = Table(std::initializer_list<std::vector<std::string>>({
+  auto table = Table({
       {"a", "b", "c", "d"},
       {"e", "f", "g", "h"},
       {"i", "j", "k", "l"},
       {"m", "n", "o", "p"},
-  }));
+  });
   Screen screen(10, 10);
   Render(screen, table.Render());
   EXPECT_EQ(

src/ftxui/dom/text.cpp

@@ -4,9 +4,8 @@
 #include <algorithm>  // for min
 #include <memory>     // for make_shared
 #include <sstream>
-#include <string>       // for string, wstring
+#include <string>   // for string, wstring
-#include <string_view>  // for string_view
+#include <utility>  // for move
-#include <utility>      // for move
 
 #include "ftxui/dom/deprecated.hpp"   // for text, vtext
 #include "ftxui/dom/elements.hpp"     // for Element, text, vtext
@@ -25,7 +24,6 @@ using ftxui::Screen;
 class Text : public Node {
  public:
   explicit Text(std::string text) : text_(std::move(text)) {}
-  explicit Text(std::string_view sv) : Text(std::string(sv)) {}
 
   void ComputeRequirement() override {
     requirement_.min_x = string_width(text_);
@@ -98,8 +96,6 @@ class VText : public Node {
   explicit VText(std::string text)
       : text_(std::move(text)), width_{std::min(string_width(text_), 1)} {}
 
-  explicit VText(std::string_view sv) : VText(std::string(sv)) {}
-
   void ComputeRequirement() override {
     requirement_.min_x = width_;
     requirement_.min_y = string_width(text_);
@@ -142,8 +138,8 @@ class VText : public Node {
 /// ```bash
 /// Hello world!
 /// ```
-Element text(std::string_view text) {
+Element text(std::string text) {
-  return std::make_shared<Text>(std::string(text));
+  return std::make_shared<Text>(std::move(text));
 }
 
 /// @brief Display a piece of unicode text.
@@ -165,25 +161,6 @@ Element text(std::wstring text) {  // NOLINT
   return std::make_shared<Text>(to_string(text));
 }
 
-/// @brief Display a piece of unicode text.
-/// @ingroup dom
-/// @see ftxui::to_wstring
-///
-/// ### Example
-///
-/// ```cpp
-/// Element document = text(L"Hello world!");
-/// ```
-///
-/// ### Output
-///
-/// ```bash
-/// Hello world!
-/// ```
-Element text(std::wstring_view sv) {
-  return text(std::wstring(sv));
-}
-
 /// @brief Display a piece of unicode text vertically.
 /// @ingroup dom
 /// @see ftxui::to_wstring
@@ -210,8 +187,8 @@ Element text(std::wstring_view sv) {
 /// d
 /// !
 /// ```
-Element vtext(std::string_view text) {
+Element vtext(std::string text) {
-  return std::make_shared<VText>(std::string(text));
+  return std::make_shared<VText>(std::move(text));
 }
 
 /// @brief Display a piece unicode text vertically.
@@ -244,34 +221,4 @@ Element vtext(std::wstring text) {  // NOLINT
   return std::make_shared<VText>(to_string(text));
 }
 
-/// @brief Display a piece unicode text vertically.
-/// @ingroup dom
-/// @see ftxui::to_wstring
-///
-/// ### Example
-///
-/// ```cpp
-/// Element document = vtext(L"Hello world!");
-/// ```
-///
-/// ### Output
-///
-/// ```bash
-/// H
-/// e
-/// l
-/// l
-/// o
-///
-/// w
-/// o
-/// r
-/// l
-/// d
-/// !
-/// ```
-Element vtext(std::wstring_view text) {  // NOLINT
-  return vtext(std::wstring(text));
-}
-
 }  // namespace ftxui

src/ftxui/dom/text_test.cpp

@@ -2,8 +2,7 @@
 // Use of this source code is governed by the MIT license that can be found in
 // the LICENSE file.
 #include <gtest/gtest.h>
-#include <string>       // for allocator, string
+#include <string>  // for allocator, string
-#include <string_view>  // for string_view
 
 #include "ftxui/dom/elements.hpp"   // for text, operator|, border, Element
 #include "ftxui/dom/node.hpp"       // for Render
@@ -122,13 +121,5 @@ TEST(TextTest, CombiningCharactersWithSpace) {
   EXPECT_EQ(t, screen.ToString());
 }
 
-TEST(TextTest, WithStringViews) {
-  const std::string_view t = "Hello, world!";
-  auto element = text(t);
-  Screen screen(13, 1);
-  Render(screen, element);
-  EXPECT_EQ(t, screen.ToString());
-}
-
 }  // namespace ftxui
 // NOLINTEND

src/ftxui/screen.cppm

@@ -3,12 +3,12 @@
 
 export module ftxui.screen;
 
-export import :Box;
+export import ftxui.screen.box;
-export import :Color;
+export import ftxui.screen.color;
-export import :ColorInfo;
+export import ftxui.screen.color_info;
-export import :Deprecated;
+export import ftxui.screen.deprecated;
-export import :Image;
+export import ftxui.screen.image;
-export import :Pixel;
+export import ftxui.screen.pixel;
-export import :Screen;
+export import ftxui.screen.screen;
-export import :String;
+export import ftxui.screen.string;
-export import :Terminal;
+export import ftxui.screen.terminal;

src/ftxui/screen/box.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Box
+/// @module ftxui.screen.box
 /// @brief Module file for the Box struct of the Screen module
 
 module;
 
 #include <ftxui/screen/box.hpp>
 
-export module ftxui.screen:Box;
+export module ftxui.screen.box;
 
 /**
  * @namespace ftxui

src/ftxui/screen/color.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Color
+/// @module ftxui.screen.color
 /// @brief Module file for the Color class of the Screen module
 
 module;
 
 #include <ftxui/screen/color.hpp>
 
-export module ftxui.screen:Color;
+export module ftxui.screen.color;
 
 /**
  * @namespace ftxui
@@ -14,10 +14,6 @@ export module ftxui.screen:Color;
 export namespace ftxui {
     using ftxui::Color;
 
-    /**
-     * @namespace literals
-     * @brief The FTXUI ftxui::literals:: namespace
-     */
     inline namespace literals {
         using ftxui::literals::operator""_rgb;
     }

src/ftxui/screen/color_info.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:ColorInfo
+/// @module ftxui.screen.color_info
 /// @brief Module file for the ColorInfo struct of the Screen module
 
 module;
 
 #include <ftxui/screen/color_info.hpp>
 
-export module ftxui.screen:ColorInfo;
+export module ftxui.screen.color_info;
 
 /**
  * @namespace ftxui

src/ftxui/screen/deprecated.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Deprecated
+/// @module ftxui.screen.deprecated
 /// @brief Module file for the deprecated parts of the Screen module
 
 module;
 
 #include <ftxui/screen/deprecated.hpp>
 
-export module ftxui.screen:Deprecated;
+export module ftxui.screen.deprecated;
 
 /**
  * @namespace ftxui

src/ftxui/screen/image.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Image
+/// @module ftxui.screen.image
 /// @brief Module file for the Image class of the Screen module
 
 module;
 
 #include <ftxui/screen/image.hpp>
 
-export module ftxui.screen:Image;
+export module ftxui.screen.image;
 
 /**
  * @namespace ftxui

src/ftxui/screen/pixel.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Pixel
+/// @module ftxui.screen.pixel
 /// @brief Module file for the Pixel struct of the Screen module
 
 module;
 
 #include <ftxui/screen/pixel.hpp>
 
-export module ftxui.screen:Pixel;
+export module ftxui.screen.pixel;
 
 /**
  * @namespace ftxui

src/ftxui/screen/screen.cpp

@@ -531,7 +531,7 @@ void Screen::ApplyShader() {
 }
 // clang-format on
 
-std::uint8_t Screen::RegisterHyperlink(std::string_view link) {
+std::uint8_t Screen::RegisterHyperlink(const std::string& link) {
   for (std::size_t i = 0; i < hyperlinks_.size(); ++i) {
     if (hyperlinks_[i] == link) {
       return i;
@@ -540,7 +540,7 @@ std::uint8_t Screen::RegisterHyperlink(std::string_view link) {
   if (hyperlinks_.size() == std::numeric_limits<std::uint8_t>::max()) {
     return 0;
   }
-  hyperlinks_.push_back(std::string(link));
+  hyperlinks_.push_back(link);
   return hyperlinks_.size() - 1;
 }
 

src/ftxui/screen/screen.cppm

@@ -1,21 +1,17 @@
-/// @module ftxui.screen:Screen
+/// @module ftxui.screen.screen
 /// @brief Module file for the Screen class of the Screen module
 
 module;
 
 #include <ftxui/screen/screen.hpp>
 
-export module ftxui.screen:Screen;
+export module ftxui.screen.screen;
 
 /**
  * @namespace ftxui
  * @brief The FTXUI ftxui:: namespace
  */
 export namespace ftxui {
-    /**
-     * @namespace Dimension
-     * @brief The FTXUI ftxui::Dimension:: namespace
-     */
     namespace Dimension {
         using ftxui::Dimension::Fixed;
         using ftxui::Dimension::Full;

src/ftxui/screen/string.cpp

@@ -1171,7 +1171,7 @@ namespace ftxui {
 // one codepoint. Put the codepoint into |ucs|. Start at |start| and update
 // |end| to represent the beginning of the next byte to eat for consecutive
 // executions.
-bool EatCodePoint(std::string_view input,
+bool EatCodePoint(const std::string& input,
                   size_t start,
                   size_t* end,
                   uint32_t* ucs) {
@@ -1241,7 +1241,7 @@ bool EatCodePoint(std::string_view input,
 // one codepoint. Put the codepoint into |ucs|. Start at |start| and update
 // |end| to represent the beginning of the next byte to eat for consecutive
 // executions.
-bool EatCodePoint(std::wstring_view input,
+bool EatCodePoint(const std::wstring& input,
                   size_t start,
                   size_t* end,
                   uint32_t* ucs) {
@@ -1328,7 +1328,7 @@ int wstring_width(const std::wstring& text) {
   return width;
 }
 
-int string_width(std::string_view input) {
+int string_width(const std::string& input) {
   int width = 0;
   size_t start = 0;
   while (start < input.size()) {
@@ -1355,7 +1355,7 @@ int string_width(std::string_view input) {
   return width;
 }
 
-std::vector<std::string> Utf8ToGlyphs(std::string_view input) {
+std::vector<std::string> Utf8ToGlyphs(const std::string& input) {
   std::vector<std::string> out;
   out.reserve(input.size());
   size_t start = 0;
@@ -1367,7 +1367,7 @@ std::vector<std::string> Utf8ToGlyphs(std::string_view input) {
       continue;
     }
 
-    const auto append = input.substr(start, end - start);
+    const std::string append = input.substr(start, end - start);
     start = end;
 
     // Ignore control characters.
@@ -1386,18 +1386,18 @@ std::vector<std::string> Utf8ToGlyphs(std::string_view input) {
     // Fullwidth characters take two cells. The second is made of the empty
     // string to reserve the space the first is taking.
     if (IsFullWidth(codepoint)) {
-      out.push_back(std::string(append));
+      out.push_back(append);
       out.emplace_back("");
       continue;
     }
 
     // Normal characters:
-    out.push_back(std::string(append));
+    out.push_back(append);
   }
   return out;
 }
 
-size_t GlyphPrevious(std::string_view input, size_t start) {
+size_t GlyphPrevious(const std::string& input, size_t start) {
   while (true) {
     if (start == 0) {
       return 0;
@@ -1422,7 +1422,7 @@ size_t GlyphPrevious(std::string_view input, size_t start) {
   }
 }
 
-size_t GlyphNext(std::string_view input, size_t start) {
+size_t GlyphNext(const std::string& input, size_t start) {
   bool glyph_found = false;
   while (start < input.size()) {
     size_t end = 0;
@@ -1448,7 +1448,7 @@ size_t GlyphNext(std::string_view input, size_t start) {
   return static_cast<int>(input.size());
 }
 
-size_t GlyphIterate(std::string_view input, int glyph_offset, size_t start) {
+size_t GlyphIterate(const std::string& input, int glyph_offset, size_t start) {
   if (glyph_offset >= 0) {
     for (int i = 0; i < glyph_offset; ++i) {
       start = GlyphNext(input, start);
@@ -1462,7 +1462,7 @@ size_t GlyphIterate(std::string_view input, int glyph_offset, size_t start) {
   }
 }
 
-std::vector<int> CellToGlyphIndex(std::string_view input) {
+std::vector<int> CellToGlyphIndex(const std::string& input) {
   int x = -1;
   std::vector<int> out;
   out.reserve(input.size());
@@ -1503,7 +1503,7 @@ std::vector<int> CellToGlyphIndex(std::string_view input) {
   return out;
 }
 
-int GlyphCount(std::string_view input) {
+int GlyphCount(const std::string& input) {
   int size = 0;
   size_t start = 0;
   size_t end = 0;
@@ -1531,7 +1531,8 @@ int GlyphCount(std::string_view input) {
   return size;
 }
 
-std::vector<WordBreakProperty> Utf8ToWordBreakProperty(std::string_view input) {
+std::vector<WordBreakProperty> Utf8ToWordBreakProperty(
+    const std::string& input) {
   std::vector<WordBreakProperty> out;
   out.reserve(input.size());
   size_t start = 0;
@@ -1562,7 +1563,7 @@ std::vector<WordBreakProperty> Utf8ToWordBreakProperty(std::string_view input) {
 }
 
 /// Convert a std::wstring into a UTF8 std::string.
-std::string to_string(std::wstring_view s) {
+std::string to_string(const std::wstring& s) {
   std::string out;
 
   size_t i = 0;
@@ -1634,7 +1635,7 @@ std::string to_string(std::wstring_view s) {
 }
 
 /// Convert a UTF8 std::string into a std::wstring.
-std::wstring to_wstring(std::string_view s) {
+std::wstring to_wstring(const std::string& s) {
   std::wstring out;
 
   size_t i = 0;

src/ftxui/screen/string.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:String
+/// @module ftxui.screen.string
 /// @brief Module file for string functions of the Screen module
 
 module;
 
 #include <ftxui/screen/string.hpp>
 
-export module ftxui.screen:String;
+export module ftxui.screen.string;
 
 /**
  * @namespace ftxui

src/ftxui/screen/string_internal.hpp

@@ -10,11 +10,11 @@
 
 namespace ftxui {
 
-bool EatCodePoint(std::string_view input,
+bool EatCodePoint(const std::string& input,
                   size_t start,
                   size_t* end,
                   uint32_t* ucs);
-bool EatCodePoint(std::wstring_view input,
+bool EatCodePoint(const std::wstring& input,
                   size_t start,
                   size_t* end,
                   uint32_t* ucs);
@@ -23,15 +23,17 @@ bool IsCombining(uint32_t ucs);
 bool IsFullWidth(uint32_t ucs);
 bool IsControl(uint32_t ucs);
 
-size_t GlyphPrevious(std::string_view input, size_t start);
+size_t GlyphPrevious(const std::string& input, size_t start);
-size_t GlyphNext(std::string_view input, size_t start);
+size_t GlyphNext(const std::string& input, size_t start);
 
 // Return the index in the |input| string of the glyph at |glyph_offset|,
 // starting at |start|
-size_t GlyphIterate(std::string_view input, int glyph_offset, size_t start = 0);
+size_t GlyphIterate(const std::string& input,
+                    int glyph_offset,
+                    size_t start = 0);
 
 // Returns the number of glyphs in |input|.
-int GlyphCount(std::string_view input);
+int GlyphCount(const std::string& input);
 
 // Properties from:
 // https://www.unicode.org/Public/UCD/latest/ucd/auxiliary/WordBreakProperty.txt
@@ -56,9 +58,10 @@ enum class WordBreakProperty : int8_t {
   ZWJ,
 };
 WordBreakProperty CodepointToWordBreakProperty(uint32_t codepoint);
-std::vector<WordBreakProperty> Utf8ToWordBreakProperty(std::string_view input);
+std::vector<WordBreakProperty> Utf8ToWordBreakProperty(
+    const std::string& input);
 
-bool IsWordBreakingCharacter(std::string_view input, size_t glyph_index);
+bool IsWordBreakingCharacter(const std::string& input, size_t glyph_index);
 }  // namespace ftxui
 
 #endif /* end of include guard: FTXUI_SCREEN_STRING_INTERNAL_HPP */

src/ftxui/screen/string_test.cpp

@@ -154,14 +154,14 @@ TEST(StringTest, to_string) {
 }
 
 TEST(StringTest, to_wstring) {
-  EXPECT_EQ(to_wstring("hello"), L"hello");
+  EXPECT_EQ(to_wstring(std::string("hello")), L"hello");
-  EXPECT_EQ(to_wstring("€"), L"€");
+  EXPECT_EQ(to_wstring(std::string("€")), L"€");
-  EXPECT_EQ(to_wstring("ÿ"), L"ÿ");
+  EXPECT_EQ(to_wstring(std::string("ÿ")), L"ÿ");
-  EXPECT_EQ(to_wstring("߿"), L"߿");
+  EXPECT_EQ(to_wstring(std::string("߿")), L"߿");
-  EXPECT_EQ(to_wstring("ɰɱ"), L"ɰɱ");
+  EXPECT_EQ(to_wstring(std::string("ɰɱ")), L"ɰɱ");
-  EXPECT_EQ(to_wstring("«»"), L"«»");
+  EXPECT_EQ(to_wstring(std::string("«»")), L"«»");
-  EXPECT_EQ(to_wstring("嵰嵲嵫"), L"嵰嵲嵫");
+  EXPECT_EQ(to_wstring(std::string("嵰嵲嵫")), L"嵰嵲嵫");
-  EXPECT_EQ(to_wstring("🎅🎄"), L"🎅🎄");
+  EXPECT_EQ(to_wstring(std::string("🎅🎄")), L"🎅🎄");
 }
 
 }  // namespace ftxui

src/ftxui/screen/terminal.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.screen:Terminal
+/// @module ftxui.screen.terminal
 /// @brief Module file for the Terminal namespace of the Screen module
 
 module;
 
 #include <ftxui/screen/terminal.hpp>
 
-export module ftxui.screen:Terminal;
+export module ftxui.screen.terminal;
 
 /**
  * @namespace ftxui
@@ -14,10 +14,6 @@ export module ftxui.screen:Terminal;
 export namespace ftxui {
     using ftxui::Dimensions;
 
-    /**
-     * @namespace Terminal
-     * @brief The FTXUI ftxui::Terminal:: namespace
-     */
     namespace Terminal {
         using ftxui::Terminal::Size;
         using ftxui::Terminal::SetFallbackSize;

src/ftxui/util.cppm

@@ -3,5 +3,5 @@
 
 export module ftxui.util;
 
-export import :AutoReset;
+export import ftxui.util.autoreset;
-export import :Ref;
+export import ftxui.util.ref;

src/ftxui/util/autoreset.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.util:AutoReset
+/// @module ftxui.util.autoreset
 /// @brief Module file for the AutoReset class of the Util module
 
 module;
 
 #include <ftxui/util/autoreset.hpp>
 
-export module ftxui.util:AutoReset;
+export module ftxui.util.autoreset;
 
 /**
  * @namespace ftxui

src/ftxui/util/ref.cppm

@@ -1,11 +1,11 @@
-/// @module ftxui.util:Ref
+/// @module ftxui.util.ref
 /// @brief Module file for the Ref classes of the Util module
 
 module;
 
 #include <ftxui/util/ref.hpp>
 
-export module ftxui.util:Ref;
+export module ftxui.util.ref;
 
 /**
  * @namespace ftxui