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//! OS clipboard abstraction

use crate::Context;

#[cfg(all(feature = "sapp-linux", any(
    target_os = "linux",
    target_os = "dragonfly",
    target_os = "freebsd",
    target_os = "netbsd",
    target_os = "openbsd",
)))]
mod linux_x11 {
    use crate::Context;

    pub fn get(_ctx: &mut Context) -> Option<String> {
        use std::ffi::CString;

        let bufname = CString::new("CLIPBOARD").unwrap();
        let fmtname = CString::new("UTF8_STRING").unwrap();

        unsafe { sapp_linux::clipboard::get_clipboard(bufname.as_ptr(), fmtname.as_ptr()) }
    }

    pub fn set(_ctx: &mut Context, data: &str) {
        use std::ffi::CString;

        let bufname = CString::new("CLIPBOARD").unwrap();

        unsafe {
            sapp_linux::clipboard::claim_clipboard_ownership(bufname.as_ptr(), data.to_owned())
        };
    }
}

#[cfg(target_arch = "wasm32")]
mod wasm {
    use crate::Context;

    pub fn get(_ctx: &mut Context) -> Option<String> {
        sapp_wasm::clipboard_get()
    }

    pub fn set(_ctx: &mut Context, data: &str) {
        sapp_wasm::clipboard_set(data);
    }
}

#[cfg(target_os = "windows")]
mod windows {
    use crate::Context;

    pub fn get(_ctx: &mut Context) -> Option<String> {
        unsafe { sapp_windows::clipboard::get_clipboard_text() }
    }

    pub fn set(_ctx: &mut Context, data: &str) {
        unsafe { sapp_windows::clipboard::set_clipboard_text(data) };
    }
}

#[cfg(not(any(
    all(feature = "sapp-linux", any(
        target_os = "linux",
        target_os = "dragonfly",
        target_os = "freebsd",
        target_os = "netbsd",
        target_os = "openbsd",
    )),
    target_os = "windows",
    target_arch = "wasm32"
)))]
mod dummy {
    use crate::Context;

    pub fn get(_ctx: &mut Context) -> Option<String> {
        None
    }

    pub fn set(_ctx: &mut Context, _data: &str) {}
}

#[cfg(not(any(
    all(feature = "sapp-linux", any(
        target_os = "linux",
        target_os = "dragonfly",
        target_os = "freebsd",
        target_os = "netbsd",
        target_os = "openbsd",
    )),
    target_os = "windows",
    target_arch = "wasm32"
)))]
use dummy as clipboard;
#[cfg(all(feature = "sapp-linux", any(
    target_os = "linux",
    target_os = "dragonfly",
    target_os = "freebsd",
    target_os = "netbsd",
    target_os = "openbsd",
)))]
use linux_x11 as clipboard;
#[cfg(target_arch = "wasm32")]
use wasm as clipboard;
#[cfg(target_os = "windows")]
use windows as clipboard;

/// Get current OS clipboard value
pub fn get(ctx: &mut Context) -> Option<String> {
    clipboard::get(ctx)
}

/// Save value to OS clipboard
pub fn set(ctx: &mut Context, data: &str) {
    clipboard::set(ctx, data);
}