From f099fed9fb4fc37b7ff5547829d24cfdcb7d70e0 Mon Sep 17 00:00:00 2001
From: Olaf Wintermann <olaf.wintermann@gmail.com>
Date: Mon, 30 Mar 2026 21:25:06 +0200
Subject: [PATCH] add button bindings

---
 application/src/main.rs |  1 +
 ui-rs/src/ui/button.rs  | 96 +++++++++++++++++++++++++++++++++++++++++
 ui-rs/src/ui/ffi.rs     | 15 +++++++
 ui-rs/src/ui/mod.rs     |  2 +
 4 files changed, 114 insertions(+)
 create mode 100644 ui-rs/src/ui/button.rs

diff --git a/application/src/main.rs b/application/src/main.rs
index 097f1c4..dcc15e4 100644
--- a/application/src/main.rs
+++ b/application/src/main.rs
@@ -12,6 +12,7 @@ struct App;
 impl ui::Application for App {
     fn on_startup(&self) {
         let obj = ui::window("note");
+        obj.button().label("Hello").build();
         obj.show();
     }
 }
diff --git a/ui-rs/src/ui/button.rs b/ui-rs/src/ui/button.rs
new file mode 100644
index 0000000..412de6d
--- /dev/null
+++ b/ui-rs/src/ui/button.rs
@@ -0,0 +1,96 @@
+#![allow(dead_code)]
+#[allow(unused_imports)]
+
+use std::ffi::{c_char, c_int, c_void};
+use std::ffi::CString;
+use crate::ui::toolkit;
+use crate::ui::ffi::*;
+
+extern "C" {
+    fn ui_window(title: *const c_char) -> *const UiObject;
+
+    fn ui_button_create(obj: *const UiObject, args: *const UiButtonArgs);
+    fn ui_togglebutton_create(obj: *const UiObject, args: *const UiToggleArgs);
+    fn ui_checkbox_create(obj: *const UiObject, args: *const UiToggleArgs);
+    fn ui_switch_create(obj: *const UiObject, args: *const UiToggleArgs);
+    fn ui_radiobutton_create(obj: *const UiObject, args: *const UiToggleArgs);
+    fn ui_linkbutton_create(obj: *const UiObject, args: *const UiLinkButtonArgs);
+
+    fn ui_button_args_new() -> *mut UiButtonArgs;
+    fn ui_button_args_set_label(args: *mut UiButtonArgs, label: *const c_char);
+    // TODO: implement arg funcs
+    fn ui_button_args_free(args: *mut UiButtonArgs);
+
+    fn ui_toggle_args_new() -> *mut UiToggleArgs;
+    fn ui_toggle_args_free(args: *mut UiToggleArgs);
+}
+
+pub struct ButtonBuilder {
+    args: *mut UiButtonArgs,
+    obj: *const UiObject
+}
+
+pub struct ToggleBuilder {
+    args: *mut UiToggleArgs
+}
+
+impl toolkit::UiObject {
+    pub fn button(&self) -> ButtonBuilder {
+        unsafe {
+            let args = ui_button_args_new();
+            ButtonBuilder { args: args, obj: self.ptr }
+        }
+    }
+
+    pub fn togglebutton() -> ToggleBuilder {
+        unsafe {
+            let args = ui_toggle_args_new();
+            ToggleBuilder { args: args }
+        }
+    }
+
+    pub fn checkbox() -> ToggleBuilder {
+        unsafe {
+            let args = ui_toggle_args_new();
+            ToggleBuilder { args: args }
+        }
+    }
+
+    pub fn switch() -> ToggleBuilder {
+        unsafe {
+            let args = ui_toggle_args_new();
+            ToggleBuilder { args: args }
+        }
+    }
+
+    pub fn radiobutton() -> ToggleBuilder {
+        unsafe {
+            let args = ui_toggle_args_new();
+            ToggleBuilder { args: args }
+        }
+    }
+}
+
+impl Drop for ButtonBuilder {
+    fn drop(&mut self) {
+        unsafe {
+            ui_button_args_free(self.args);
+        }
+    }
+}
+
+impl ButtonBuilder {
+    pub fn build(self) {
+        unsafe {
+            ui_button_create(self.obj, self.args);
+        }
+    }
+
+    pub fn label(self, label: &str) -> Self {
+        let cstr = CString::new(label).unwrap();
+        unsafe {
+            ui_button_args_set_label(self.args, cstr.as_ptr());
+        }
+        self
+    }
+}
diff --git a/ui-rs/src/ui/ffi.rs b/ui-rs/src/ui/ffi.rs
index c4a27a8..a266786 100644
--- a/ui-rs/src/ui/ffi.rs
+++ b/ui-rs/src/ui/ffi.rs
@@ -45,3 +45,18 @@ pub struct UiList {
 
 pub type UiCallback = Option<extern "C" fn(event: *const UiEvent, *mut c_void)>;
 
+
+#[repr(C)]
+pub struct UiButtonArgs {
+    _private: [u8; 0],
+}
+
+#[repr(C)]
+pub struct UiToggleArgs {
+    _private: [u8; 0],
+}
+
+#[repr(C)]
+pub struct UiLinkButtonArgs {
+    _private: [u8; 0],
+}
diff --git a/ui-rs/src/ui/mod.rs b/ui-rs/src/ui/mod.rs
index 8a061fe..57aa5bf 100644
--- a/ui-rs/src/ui/mod.rs
+++ b/ui-rs/src/ui/mod.rs
@@ -2,7 +2,9 @@ mod ffi;
 mod toolkit;
 mod application;
 mod window;
+mod button;
 
 pub use toolkit::*;
 pub use application::*;
 pub use window::*;
+pub use button::*;
-- 
2.47.3