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use glib::translate::*;
use glib_sys::gpointer;
use gtk_sys;
use libc::c_uint;
use std::boxed::Box as Box_;
use Clipboard;
use SelectionData;
use TargetEntry;
impl Clipboard {
pub fn set_with_data<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
&self,
targets: &[TargetEntry],
f: F,
) -> bool {
unsafe extern "C" fn trampoline<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
clipboard: *mut gtk_sys::GtkClipboard,
selection_data: *mut gtk_sys::GtkSelectionData,
info: c_uint,
user_data: gpointer,
) {
let f: &F = &*(user_data as *const F);
f(
&from_glib_borrow(clipboard),
&from_glib_borrow(selection_data),
info,
);
}
unsafe extern "C" fn cleanup<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
_clipboard: *mut gtk_sys::GtkClipboard,
user_data: gpointer,
) {
Box_::<F>::from_raw(user_data as *mut _);
}
let stashed_targets: Vec<_> = targets.iter().map(|e| e.to_glib_none()).collect();
let mut t = Vec::with_capacity(stashed_targets.len());
for stash in &stashed_targets {
unsafe {
t.push(gtk_sys::GtkTargetEntry {
target: (*stash.0).target,
flags: (*stash.0).flags,
info: (*stash.0).info,
});
}
}
let t_ptr: *mut gtk_sys::GtkTargetEntry = t.as_mut_ptr();
let f: Box_<F> = Box_::new(f);
let user_data = Box_::into_raw(f) as *mut _;
let success: bool = unsafe {
from_glib(gtk_sys::gtk_clipboard_set_with_data(
self.to_glib_none().0,
t_ptr,
t.len() as c_uint,
Some(trampoline::<F>),
Some(cleanup::<F>),
user_data,
))
};
if !success {
unsafe {
Box_::<F>::from_raw(user_data as *mut _);
}
}
success
}
}