Support Bazel

BUG:https://github.com/ArthurSonzogni/FTXUI/issues/1032

.bazelrc

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

.gitignore

@@ -20,6 +20,10 @@ out/
 !flake.nix
 !ftxui.pc.in
 !iwyu.imp
+!WORKSPACE
+!BUILD.bazel
+!MODULE.bazel
+!.bazelrc
 
 # .github directory:
 !.github/**/*.yaml

BUILD.bazel

@@ -0,0 +1,258 @@
+load(
+  "@rules_cc//cc:defs.bzl",
+  "cc_library",
+  "cc_test",
+  "cc_binary",
+)
+
+package(default_visibility = ["//visibility:public"])
+
+cc_library(
+  name  = "screen",
+  srcs  = [
+    "src/ftxui/screen/box.cpp",
+    "src/ftxui/screen/color.cpp",
+    "src/ftxui/screen/color_info.cpp",
+    "src/ftxui/screen/image.cpp",
+    "src/ftxui/screen/screen.cpp",
+    "src/ftxui/screen/string.cpp",
+    "src/ftxui/screen/string_internal.hpp",
+    "src/ftxui/screen/terminal.cpp",
+    "src/ftxui/screen/util.hpp",
+  ],
+  hdrs  = [
+    "include/ftxui/screen/box.hpp",
+    "include/ftxui/screen/color.hpp",
+    "include/ftxui/screen/color_info.hpp",
+    "include/ftxui/screen/deprecated.hpp",
+    "include/ftxui/screen/image.hpp",
+    "include/ftxui/screen/pixel.hpp",
+    "include/ftxui/screen/screen.hpp",
+    "include/ftxui/screen/string.hpp",
+    "include/ftxui/screen/terminal.hpp",
+    "include/ftxui/util/autoreset.hpp",
+    "include/ftxui/util/ref.hpp",
+  ],
+  includes = ["include", "src"],
+  strip_include_prefix = "",
+  copts      = ["-std=c++17"],
+)
+
+cc_test(
+  name = "screen_test",
+  srcs = [
+    "src/ftxui/screen/string_test.cpp",
+    "src/ftxui/screen/color_test.cpp",
+  ],
+  deps = [
+    "//:screen",
+    "@googletest//:gtest_main",
+  ],
+  includes   = ["include", "src"],
+  copts  = ["-std=c++20"],
+  testonly   = True,
+)
+
+cc_library(
+    name     = "dom",
+    srcs     = [
+      "src/ftxui/dom/automerge.cpp",
+      "src/ftxui/dom/blink.cpp",
+      "src/ftxui/dom/bold.cpp",
+      "src/ftxui/dom/border.cpp",
+      "src/ftxui/dom/box_helper.cpp",
+      "src/ftxui/dom/box_helper.hpp",
+      "src/ftxui/dom/canvas.cpp",
+      "src/ftxui/dom/clear_under.cpp",
+      "src/ftxui/dom/color.cpp",
+      "src/ftxui/dom/composite_decorator.cpp",
+      "src/ftxui/dom/dbox.cpp",
+      "src/ftxui/dom/dim.cpp",
+      "src/ftxui/dom/flex.cpp",
+      "src/ftxui/dom/flexbox.cpp",
+      "src/ftxui/dom/flexbox_config.cpp",
+      "src/ftxui/dom/flexbox_helper.cpp",
+      "src/ftxui/dom/flexbox_helper.hpp",
+      "src/ftxui/dom/focus.cpp",
+      "src/ftxui/dom/frame.cpp",
+      "src/ftxui/dom/gauge.cpp",
+      "src/ftxui/dom/graph.cpp",
+      "src/ftxui/dom/gridbox.cpp",
+      "src/ftxui/dom/hbox.cpp",
+      "src/ftxui/dom/hyperlink.cpp",
+      "src/ftxui/dom/inverted.cpp",
+      "src/ftxui/dom/italic.cpp",
+      "src/ftxui/dom/linear_gradient.cpp",
+      "src/ftxui/dom/node.cpp",
+      "src/ftxui/dom/node_decorator.cpp",
+      "src/ftxui/dom/node_decorator.hpp",
+      "src/ftxui/dom/paragraph.cpp",
+      "src/ftxui/dom/reflect.cpp",
+      "src/ftxui/dom/scroll_indicator.cpp",
+      "src/ftxui/dom/selection.cpp",
+      "src/ftxui/dom/selection_style.cpp",
+      "src/ftxui/dom/separator.cpp",
+      "src/ftxui/dom/size.cpp",
+      "src/ftxui/dom/spinner.cpp",
+      "src/ftxui/dom/strikethrough.cpp",
+      "src/ftxui/dom/table.cpp",
+      "src/ftxui/dom/text.cpp",
+      "src/ftxui/dom/underlined.cpp",
+      "src/ftxui/dom/underlined_double.cpp",
+      "src/ftxui/dom/util.cpp",
+      "src/ftxui/dom/vbox.cpp",
+    ],
+    hdrs     = [
+      "include/ftxui/dom/canvas.hpp",
+      "include/ftxui/dom/deprecated.hpp",
+      "include/ftxui/dom/direction.hpp",
+      "include/ftxui/dom/elements.hpp",
+      "include/ftxui/dom/flexbox_config.hpp",
+      "include/ftxui/dom/linear_gradient.hpp",
+      "include/ftxui/dom/node.hpp",
+      "include/ftxui/dom/requirement.hpp",
+      "include/ftxui/dom/selection.hpp",
+      "include/ftxui/dom/table.hpp",
+      "include/ftxui/dom/take_any_args.hpp",
+    ],
+    includes = ["include", "src"],
+    deps     = [":screen"],
+)
+
+cc_test(
+  name = "dom_test",
+  srcs = [
+      "src/ftxui/dom/blink_test.cpp",
+      "src/ftxui/dom/bold_test.cpp",
+      "src/ftxui/dom/border_test.cpp",
+      "src/ftxui/dom/canvas_test.cpp",
+      "src/ftxui/dom/color_test.cpp",
+      "src/ftxui/dom/dbox_test.cpp",
+      "src/ftxui/dom/dim_test.cpp",
+      "src/ftxui/dom/flexbox_helper_test.cpp",
+      "src/ftxui/dom/flexbox_test.cpp",
+      "src/ftxui/dom/gauge_test.cpp",
+      "src/ftxui/dom/gridbox_test.cpp",
+      "src/ftxui/dom/hbox_test.cpp",
+      "src/ftxui/dom/hyperlink_test.cpp",
+      "src/ftxui/dom/italic_test.cpp",
+      "src/ftxui/dom/linear_gradient_test.cpp",
+      "src/ftxui/dom/scroll_indicator_test.cpp",
+      "src/ftxui/dom/separator_test.cpp",
+      "src/ftxui/dom/spinner_test.cpp",
+      "src/ftxui/dom/table_test.cpp",
+      "src/ftxui/dom/text_test.cpp",
+      "src/ftxui/dom/underlined_test.cpp",
+      "src/ftxui/dom/vbox_test.cpp",
+  ],
+  deps = [
+    "//:dom",
+    "@googletest//:gtest_main",
+  ],
+  includes   = ["include", "src"],
+  copts      = ["-std=c++20"],
+  testonly   = True,
+)
+
+#"src/ftxui/dom/benchmark_test.cpp",
+cc_library(
+  name   = "component",
+  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",
+  ],
+  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",
+        "@googletest//:gtest_main",
+    ],
+    includes   = ["include", "src"],
+    copts      = ["-std=c++20"],
+    testonly   = True,
+    )

CHANGELOG.md

@@ -1,6 +1,17 @@
 Changelog
 =========
 
+Development
+-----------
+### Component
+- Bugfix: Fix a crash with ResizeableSplit. See #1023.
+  - Clamp screen size to terminal size.
+  - Disallow `ResizeableSplit` with negative size.
+
+### Dom
+- Bugfix: Disallow specifying a negative size constraint. See #1023.
+
+
 6.0.2 (2025-03-30)
 -----
 

MODULE.bazel

@@ -0,0 +1,18 @@
+# Module.
+module(
+  name = "ftxui",
+  version = "6.0.2",
+)
+
+# Build deps.
+bazel_dep(name = "rules_cc", version = "0.0.17")
+
+# Test deps.
+bazel_dep(name = "googletest", version = "1.15.2")
+
+# Toolchain deps.
+cc_configure = use_extension(
+  "@rules_cc//bzlmod:extensions.bzl",
+  "cc_configure",
+)
+use_repo(cc_configure, "local_config_cc_toolchains")

WORKSPACE

@@ -0,0 +1 @@
+workspace(name = "ftxui")

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/dom/selection_test.cpp
+  src/ftxui/util/ref_test.cpp
   src/ftxui/dom/separator_test.cpp
   src/ftxui/dom/spinner_test.cpp
   src/ftxui/dom/table_test.cpp

include/ftxui/component/component_base.hpp

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

src/ftxui/component/resizable_split.cpp

@@ -77,16 +77,16 @@ class ResizableSplitBase : public ComponentBase {
 
     switch (options_->direction()) {
       case Direction::Left:
-        options_->main_size() = event.mouse().x - box_.x_min;
+        options_->main_size() = std::max(0, event.mouse().x - box_.x_min);
         return true;
       case Direction::Right:
-        options_->main_size() = box_.x_max - event.mouse().x;
+        options_->main_size() = std::max(0, box_.x_max - event.mouse().x);
         return true;
       case Direction::Up:
-        options_->main_size() = event.mouse().y - box_.y_min;
+        options_->main_size() = std::max(0, event.mouse().y - box_.y_min);
         return true;
       case Direction::Down:
-        options_->main_size() = box_.y_max - event.mouse().y;
+        options_->main_size() = std::max(0, box_.y_max - event.mouse().y);
         return true;
     }
 

src/ftxui/component/screen_interactive.cpp

@@ -34,6 +34,7 @@
 #include "ftxui/dom/requirement.hpp"                  // for Requirement
 #include "ftxui/screen/pixel.hpp"                     // for Pixel
 #include "ftxui/screen/terminal.hpp"                  // for Dimensions, Size
+#include "ftxui/screen/util.hpp"                      // for util::clamp
 
 #if defined(_WIN32)
 #define DEFINE_CONSOLEV2_PROPERTIES
@@ -917,15 +918,15 @@ void ScreenInteractive::Draw(Component component) {
       break;
     case Dimension::TerminalOutput:
       dimx = terminal.dimx;
-      dimy = document->requirement().min_y;
+      dimy = util::clamp(document->requirement().min_y, 0, terminal.dimy);
       break;
     case Dimension::Fullscreen:
       dimx = terminal.dimx;
       dimy = terminal.dimy;
       break;
     case Dimension::FitComponent:
-      dimx = std::min(document->requirement().min_x, terminal.dimx);
+      dimx = util::clamp(document->requirement().min_x, 0, terminal.dimx);
-      dimy = std::min(document->requirement().min_y, terminal.dimy);
+      dimy = util::clamp(document->requirement().min_y, 0, terminal.dimy);
       break;
   }
 

src/ftxui/component/selection_test.cpp

@@ -127,8 +127,6 @@ TEST(SelectionTest, SelectionOnChangeSquashedEvents) {
 }
 
 TEST(SelectionTest, StyleSelection) {
-  int selectionChangeCounter = 0;
-
   auto element = hbox({
       text("Lorem "),
       text("ipsum") | selectionColor(Color::Red),

src/ftxui/dom/size.cpp

@@ -19,7 +19,7 @@ class Size : public Node {
       : Node(unpack(std::move(child))),
         direction_(direction),
         constraint_(constraint),
-        value_(value) {}
+        value_(std::max(0, value)) {}
 
   void ComputeRequirement() override {
     Node::ComputeRequirement();