Fix workflow.

.bazelrc

@@ -1,3 +0,0 @@
-build --cxxopt=-std=c++20
-build --cxxopt=-Wall
-build --cxxopt=-Werror

.github/workflows/build.yaml

@@ -55,6 +55,19 @@ jobs:
           gcovr: "5.0"
           opencppcoverage: true
 
+      - name: "Install Bazel"
+        uses: bazel-contrib/setup-bazel@0.14.0
+        with:
+          bazelisk-cache: true
+          disk-cache: ${{ github.workflow }}
+          repository-cache: true
+
+      - name: "Build with Bazel"
+        run: bazel build ...
+
+      - name: "Tests with Bazel"
+        run: bazel run tests
+
       # make sure coverage is only enabled for Debug builds, since it sets -O0
       # to make sure coverage has meaningful results
       - name: "Configure CMake"

.gitignore

@@ -20,7 +20,7 @@ out/
 !flake.nix
 !ftxui.pc.in
 !iwyu.imp
-!WORKSPACE
+!WORKSPACE.bazel
 !BUILD.bazel
 !MODULE.bazel
 !.bazelrc
@@ -33,6 +33,9 @@ out/
 !cmake/**/*.in
 !cmake/**/*.cmake
 
+# bazel directory:
+!bazel/**/*.bzl
+
 # doc directory:
 !doc/**/Doxyfile.in
 !doc/**/*.txt

BUILD.bazel

@@ -1,13 +1,38 @@
-load(
+# Copyright 2025 Arthur Sonzogni. All rights reserved.
-  "@rules_cc//cc:defs.bzl",
+# Use of this source code is governed by the MIT license that can be found in
-  "cc_library",
+# the LICENSE file.
-  "cc_test",
+
-  "cc_binary",
+# TODO:
-)
+# - Windows/MSVC support.
+#   - Pass /utf-8 to MSVC users depending on FTXUI.
+#   - Pass "FTXUI_MICROSOFT_TERMINAL_FALLBACK" to windows users.
+# - Support building benchmark.
+# - Support building examples.
+# - Support building fuzzer.
+# - Support building documentation.
+# - Enable the two tests timing out.
+# - Support WebAssembly
+
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+load(":bazel/ftxui.bzl", "ftxui_cc_library", "generate_examples")
 
 package(default_visibility = ["//visibility:public"])
 
-cc_library(
+# A meta target that depends on all the ftxui sub modules.
+alias(
+    name = "ftxui",
+    # Note that :component depends on :dom, which depends on :screen. Bazel
+    # doesn't really support "public" and "private" dependencies. They are all
+    # public. This is equivalent to depending on all the submodules.
+    actual = ":component",
+    visibility = ["//visibility:public"],
+)
+
+# 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
+# contain a glyph, a color, and other attributes. The library also provides
+# functions to manipulate the screen.
+ftxui_cc_library(
     name = "screen",
     srcs = [
         "src/ftxui/screen/box.cpp",
@@ -33,27 +58,14 @@ cc_library(
         "include/ftxui/util/autoreset.hpp",
         "include/ftxui/util/ref.hpp",
     ],
-  includes = ["include", "src"],
-  strip_include_prefix = "",
-  copts      = ["-std=c++17"],
 )
 
-cc_test(
+# ftxui:dom is a library that provides a way to create and manipulate a
-  name = "screen_test",
+# "document" that can be rendered to a screen. The document is a tree of nodes.
-  srcs = [
+# Nodes can be text, layouts, or various decorators. Users needs to compose
-    "src/ftxui/screen/string_test.cpp",
+# nodes to create a document. A document is responsive to the size of the
-    "src/ftxui/screen/color_test.cpp",
+# screen.
-  ],
+ftxui_cc_library(
-  deps = [
-    "//:screen",
-    "@googletest//:gtest_main",
-  ],
-  includes   = ["include", "src"],
-  copts  = ["-std=c++20"],
-  testonly   = True,
-)
-
-cc_library(
     name = "dom",
     srcs = [
         "src/ftxui/dom/automerge.cpp",
@@ -115,13 +127,86 @@ cc_library(
         "include/ftxui/dom/table.hpp",
         "include/ftxui/dom/take_any_args.hpp",
     ],
-    includes = ["include", "src"],
     deps = [":screen"],
 )
 
-cc_test(
+# ftxui:component is a library to create "dynamic" component renderering and
-  name = "dom_test",
+# updating a ftxui::dom document on the screen. It is a higher level API than
+# ftxui:dom.
+#
+# The module is required if your program needs to respond to user input. It
+# defines a set of ftxui::Component. These components can be utilized to
+# navigate using the arrow keys and/or cursor. There are several builtin widgets
+# like checkbox/inputbox/etc to interact with. You can combine them, or even
+# define your own custom components.
+ftxui_cc_library(
+    name = "component",
     srcs = [
+        "src/ftxui/component/animation.cpp",
+        "src/ftxui/component/button.cpp",
+        "src/ftxui/component/catch_event.cpp",
+        "src/ftxui/component/checkbox.cpp",
+        "src/ftxui/component/collapsible.cpp",
+        "src/ftxui/component/component.cpp",
+        "src/ftxui/component/component_options.cpp",
+        "src/ftxui/component/container.cpp",
+        "src/ftxui/component/dropdown.cpp",
+        "src/ftxui/component/event.cpp",
+        "src/ftxui/component/hoverable.cpp",
+        "src/ftxui/component/input.cpp",
+        "src/ftxui/component/loop.cpp",
+        "src/ftxui/component/maybe.cpp",
+        "src/ftxui/component/menu.cpp",
+        "src/ftxui/component/modal.cpp",
+        "src/ftxui/component/radiobox.cpp",
+        "src/ftxui/component/renderer.cpp",
+        "src/ftxui/component/resizable_split.cpp",
+        "src/ftxui/component/screen_interactive.cpp",
+        "src/ftxui/component/slider.cpp",
+        "src/ftxui/component/terminal_input_parser.cpp",
+        "src/ftxui/component/terminal_input_parser.hpp",
+        "src/ftxui/component/util.cpp",
+        "src/ftxui/component/window.cpp",
+    ],
+    hdrs = [
+        "include/ftxui/component/animation.hpp",
+        "include/ftxui/component/captured_mouse.hpp",
+        "include/ftxui/component/component.hpp",
+        "include/ftxui/component/component_base.hpp",
+        "include/ftxui/component/component_options.hpp",
+        "include/ftxui/component/event.hpp",
+        "include/ftxui/component/loop.hpp",
+        "include/ftxui/component/mouse.hpp",
+        "include/ftxui/component/receiver.hpp",
+        "include/ftxui/component/screen_interactive.hpp",
+        "include/ftxui/component/task.hpp",
+    ],
+    linkopts = ["-lpthread"],
+    deps = [":dom"],
+)
+
+# FTXUI's tests
+cc_test(
+    name = "tests",
+    testonly = True,
+    srcs = [
+        "src/ftxui/component/animation_test.cpp",
+        "src/ftxui/component/button_test.cpp",
+        "src/ftxui/component/collapsible_test.cpp",
+        "src/ftxui/component/component_test.cpp",
+        "src/ftxui/component/container_test.cpp",
+        "src/ftxui/component/dropdown_test.cpp",
+        "src/ftxui/component/hoverable_test.cpp",
+        "src/ftxui/component/input_test.cpp",
+        "src/ftxui/component/menu_test.cpp",
+        "src/ftxui/component/modal_test.cpp",
+        "src/ftxui/component/radiobox_test.cpp",
+        "src/ftxui/component/receiver_test.cpp",
+        "src/ftxui/component/resizable_split_test.cpp",
+        "src/ftxui/component/slider_test.cpp",
+        "src/ftxui/component/terminal_input_parser_test.cpp",
+        "src/ftxui/component/terminal_input_parser_test_fuzzer.cpp",
+        "src/ftxui/component/toggle_test.cpp",
         "src/ftxui/dom/blink_test.cpp",
         "src/ftxui/dom/bold_test.cpp",
         "src/ftxui/dom/border_test.cpp",
@@ -144,115 +229,23 @@ cc_test(
         "src/ftxui/dom/text_test.cpp",
         "src/ftxui/dom/underlined_test.cpp",
         "src/ftxui/dom/vbox_test.cpp",
-  ],
+        "src/ftxui/screen/color_test.cpp",
-  deps = [
+        "src/ftxui/screen/string_test.cpp",
-    "//:dom",
+        "src/ftxui/util/ref_test.cpp",
-    "@googletest//:gtest_main",
-  ],
-  includes   = ["include", "src"],
-  copts      = ["-std=c++20"],
-  testonly   = True,
-)
 
-#"src/ftxui/dom/benchmark_test.cpp",
+        # TODO: Enable the two tests timing out with Bazel:
-cc_library(
+        # - "src/ftxui/component/screen_interactive_test.cpp",
-  name   = "component",
+        # - "src/ftxui/dom/selection_test.cpp",
-  srcs   = [
-    "src/ftxui/component/maybe.cpp",
-    "src/ftxui/component/hoverable.cpp",
-    "src/ftxui/component/collapsible.cpp",
-    "src/ftxui/component/screen_interactive.cpp",
-    "src/ftxui/component/modal.cpp",
-    "src/ftxui/component/util.cpp",
-    "src/ftxui/component/animation.cpp",
-    "src/ftxui/component/button.cpp",
-    "src/ftxui/component/dropdown.cpp",
-    "src/ftxui/component/loop.cpp",
-    "src/ftxui/component/slider.cpp",
-    "src/ftxui/component/container.cpp",
-    "src/ftxui/component/renderer.cpp",
-    "src/ftxui/component/terminal_input_parser.cpp",
-    "src/ftxui/component/component_options.cpp",
-    "src/ftxui/component/resizable_split.cpp",
-    "src/ftxui/component/component.cpp",
-    "src/ftxui/component/event.cpp",
-    "src/ftxui/component/catch_event.cpp",
-    "src/ftxui/component/input.cpp",
-    "src/ftxui/component/menu.cpp",
-    "src/ftxui/component/window.cpp",
-    "src/ftxui/component/checkbox.cpp",
-    "src/ftxui/component/radiobox.cpp",
-    "src/ftxui/component/terminal_input_parser.hpp",
-  ],
-  hdrs   = [
-    "include/ftxui/component/animation.hpp",
-    "include/ftxui/component/captured_mouse.hpp",
-    "include/ftxui/component/component.hpp",
-    "include/ftxui/component/component_base.hpp",
-    "include/ftxui/component/component_options.hpp",
-    "include/ftxui/component/event.hpp",
-    "include/ftxui/component/loop.hpp",
-    "include/ftxui/component/mouse.hpp",
-    "include/ftxui/component/receiver.hpp",
-    "include/ftxui/component/screen_interactive.hpp",
-    "include/ftxui/component/task.hpp",
     ],
+    copts = ["-std=c++20"],
     includes = [
         "include",
         "src",
     ],
-  strip_include_prefix = "",
-  include_prefix  = "",
-  deps   = [":dom"],
-  linkopts = ["-lpthread"],
-)
-
-    #"src/ftxui/component/component_fuzzer.cpp",
-    #"src/ftxui/component/terminal_input_parser_test_fuzzer.cpp",
-    #"src/ftxui/component/hoverable_test.cpp",
-    #"src/ftxui/component/collapsible_test.cpp",
-    #"src/ftxui/component/toggle_test.cpp",
-    #"src/ftxui/component/screen_interactive_test.cpp",
-    #"src/ftxui/component/modal_test.cpp",
-    #"src/ftxui/component/animation_test.cpp",
-    #"src/ftxui/component/★ selection_test.cpp",
-    #"src/ftxui/component/button_test.cpp",
-    #"src/ftxui/component/dropdown_test.cpp",
-    #"src/ftxui/component/slider_test.cpp",
-    #"src/ftxui/component/container_test.cpp",
-    #"src/ftxui/component/terminal_input_parser_test.cpp",
-    #"src/ftxui/component/receiver_test.cpp",
-    #"src/ftxui/component/resizable_split_test.cpp",
-    #"src/ftxui/component/component_test.cpp",
-    #"src/ftxui/component/input_test.cpp",
-    #"src/ftxui/component/menu_test.cpp",
-  #"src/ftxui/component/radiobox_test.cpp",
-
-cc_test(
-    name = "component_test",
-    srcs = [
-        "src/ftxui/component/animation_test.cpp",
-        "src/ftxui/component/button_test.cpp",
-        "src/ftxui/component/collapsible_test.cpp",
-        "src/ftxui/component/component_test.cpp",
-        "src/ftxui/component/container_test.cpp",
-        "src/ftxui/component/dropdown_test.cpp",
-        "src/ftxui/component/hoverable_test.cpp",
-        "src/ftxui/component/input_test.cpp",
-        "src/ftxui/component/menu_test.cpp",
-        "src/ftxui/component/modal_test.cpp",
-        "src/ftxui/component/radiobox_test.cpp",
-        "src/ftxui/component/resizable_split_test.cpp",
-        "src/ftxui/component/screen_interactive_test.cpp",
-        "src/ftxui/component/selection_test.cpp",
-        "src/ftxui/component/slider_test.cpp",
-        "src/ftxui/component/toggle_test.cpp",
-    ],
     deps = [
-        "//:component",
+        "//:ftxui",
         "@googletest//:gtest_main",
     ],
-    includes   = ["include", "src"],
+)
-    copts      = ["-std=c++20"],
+
-    testonly   = True,
+generate_examples()
-    )

MODULE.bazel

@@ -1,18 +1,20 @@
-# Module.
+# FTXUI Module.
 module(
     name = "ftxui",
-  version = "6.0.2",
+    version = "6.0.3",
 )
 
 # Build deps.
 bazel_dep(name = "rules_cc", version = "0.0.17")
+bazel_dep(name = "platforms", version = "0.0.10")
+bazel_dep(name = "bazel_skylib", version = "1.7.1")
 
 # Test deps.
 bazel_dep(name = "googletest", version = "1.15.2")
 
 # Toolchain deps.
-cc_configure = use_extension(
+#cc_configure = use_extension(
-  "@rules_cc//bzlmod:extensions.bzl",
+#"@rules_cc//bzlmod:extensions.bzl",
-  "cc_configure",
+#"cc_configure",
-)
+#)
-use_repo(cc_configure, "local_config_cc_toolchains")
+#use_repo(cc_configure, "local_config_cc_toolchains")

bazel/ftxui.bzl

@@ -0,0 +1,44 @@
+# ftxui_common.bzl
+
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+def ftxui_cc_library(
+        name,
+        srcs,
+        hdrs,
+        linkopts = [],
+        deps = []):
+    cc_library(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        linkopts = linkopts,
+        deps = deps,
+        strip_include_prefix = "",
+        include_prefix = "",
+        includes = [
+            "include",
+            "src",
+        ],
+        copts = ["-std=c++17"],
+        visibility = ["//visibility:public"],
+    )
+
+def generate_examples():
+    cpp_files = native.glob(["examples/**/*.cpp"])
+
+    for src in cpp_files:
+        # Skip failing examples due to the color_info_sorted_2d.ipp dependency.
+        if src == "examples/component/homescreen.cpp" or \
+           src == "examples/dom/color_info_palette256.cpp" or \
+           src == "examples/dom/color_gallery.cpp":
+            continue
+
+        # Turn "examples/component/button.cpp" → "example_component_button"
+        name = src.replace("/", "_").replace(".cpp", "")
+
+        native.cc_binary(
+            name = name,
+            srcs = [src],
+            deps = ["//:component"],
+        )

cmake/ftxui_test.cmake

@@ -19,10 +19,10 @@ add_executable(ftxui-tests
   src/ftxui/component/menu_test.cpp
   src/ftxui/component/modal_test.cpp
   src/ftxui/component/radiobox_test.cpp
+  src/ftxui/util/ref_test.cpp
   src/ftxui/component/receiver_test.cpp
   src/ftxui/component/resizable_split_test.cpp
   src/ftxui/component/screen_interactive_test.cpp
-  src/ftxui/component/selection_test.cpp
   src/ftxui/component/slider_test.cpp
   src/ftxui/component/terminal_input_parser_test.cpp
   src/ftxui/component/toggle_test.cpp
@@ -42,7 +42,7 @@ add_executable(ftxui-tests
   src/ftxui/dom/italic_test.cpp
   src/ftxui/dom/linear_gradient_test.cpp
   src/ftxui/dom/scroll_indicator_test.cpp
-  src/ftxui/util/ref_test.cpp
+  src/ftxui/dom/selection_test.cpp
   src/ftxui/dom/separator_test.cpp
   src/ftxui/dom/spinner_test.cpp
   src/ftxui/dom/table_test.cpp

examples/component/slider_direction.cpp

@@ -19,7 +19,7 @@ using namespace ftxui;
 int main() {
   auto screen = ScreenInteractive::TerminalOutput();
   std::array<int, 30> values;
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     values[i] = 50 + 20 * std::sin(i * 0.3);
   }
 

examples/dom/color_truecolor_RGB.cpp

@@ -12,7 +12,6 @@
 int main() {
   using namespace ftxui;
 
-  int saturation = 255;
   Elements red_line;
   Elements green_line;
   Elements blue_line;

examples/dom/graph.cpp

@@ -10,6 +10,7 @@
 #include <memory>                   // for shared_ptr
 #include <string>                   // for operator<<, string
 #include <thread>                   // for sleep_for
+#include <utility>                  // for ignore
 #include <vector>                   // for vector
 
 #include "ftxui/dom/node.hpp"  // for Render
@@ -49,6 +50,7 @@ int main() {
 
   std::string reset_position;
   for (int i = 0;; ++i) {
+    std::ignore = i;
     auto document = hbox({
         vbox({
             graph(std::ref(my_graph)),

include/ftxui/component/component_base.hpp

@@ -42,8 +42,8 @@ class ComponentBase {
 
   // Component hierarchy:
   ComponentBase* Parent() const;
-  Component& ChildAt(int i);
+  Component& ChildAt(size_t i);
-  int ChildCount() const;
+  size_t ChildCount() const;
   int Index() const;
   void Add(Component children);
   void Detach();

src/ftxui/component/menu_test.cpp

@@ -266,7 +266,7 @@ TEST(MenuTest, MenuEntryIndex) {
   menu->OnEvent(Event::ArrowDown);
   menu->OnEvent(Event::ArrowDown);
   menu->OnEvent(Event::Return);
-  for (int index = 0; index < menu->ChildCount(); index++) {
+  for (size_t index = 0; index < menu->ChildCount(); index++) {
     EXPECT_EQ(menu->ChildAt(index)->Index(), index);
   }
 }