Initial commit

.gitignore

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+target/

Cargo.toml

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+[package]
+name = "libclipboard"
+version = "0.1.0"
+authors = ["ippee <ippee.music@gmail.com>"]
+edition = "2018"
+
+[lib]
+name = "libclipboard"
+crate-type = ["cdylib", "staticlib"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clipboard = "0.5.0"

README.md

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+# libclipboard
+
+A dynamic library to operate clipboard, for [ippee / dart_clipboard](https://github.com/ippee/dart_clipboard).
+
+## Installation
+
+### Case A: Use your own build files
+
+On your Dart project directory, run the following commands.
+
+```shell
+mkdir ./tool/
+git submodule add git@github.com:ippee/libclipboard.git ./tool/libclipboard/
+
+cd ./tool/libclipboard/
+cargo build
+
+# on Windows
+cp ./target/debug/libclipboard.dll ../../
+
+# on macOS
+cp ./target/debug/libclipboard.dylib ../../
+
+# on Linux
+cp ./target/debug/libclipboard.so ../../
+```
+
+### Case B: Use the existing build files
+
+Coming soon...

src/lib.rs

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+// Copyright (c) 2021 ippee
+// This source code is under the MIT License.
+// See http://opensource.org/licenses/mit-license.php
+
+extern crate clipboard;
+
+use clipboard::ClipboardProvider;
+use clipboard::ClipboardContext;
+
+use std::ffi::CStr;
+use std::ffi::CString;
+use std::os::raw::c_char;
+
+#[no_mangle]
+pub extern "C" fn get_contents() -> *const c_char {
+  let mut ctx: ClipboardContext = ClipboardProvider::new().expect("ClipboardProvider::new failed");
+
+  match ctx.get_contents() {
+    Ok(v) => {
+      let cstring = CString::new(v).expect("CString::new failed");
+      return cstring.into_raw();
+    },
+    Err(_e) => panic!("Failed to get the clipboard contents"),
+  }
+}
+
+#[no_mangle]
+pub extern "C" fn set_contents(data: *const c_char) {
+  let cstr = unsafe { CStr::from_ptr(data) };
+  let rstr = cstr.to_str().expect("Failed to cast of CStr to &str");
+
+  let mut ctx: ClipboardContext = ClipboardProvider::new().expect("ClipboardProvider::new failed");
+  ctx.set_contents(rstr.to_owned()).expect("ctx.set_contents failed");
+}
+
+#[cfg(test)]
+mod tests {
+  use crate::{get_contents, set_contents};
+  use std::ffi::CStr;
+  use std::ffi::CString;
+
+  #[test]
+fn set_get_clipboard_contents() {
+    let contents = CString::new("All the world's a stage").expect("CString::new failed");
+    let expected_ptr = contents.into_raw();
+
+    set_contents(expected_ptr);
+    let actual_ptr = get_contents();
+
+    let expected = unsafe { CStr::from_ptr(expected_ptr) };
+    let actual = unsafe { CStr::from_ptr(actual_ptr) };
+
+    assert_eq!(actual, expected);
+  }
+}