gtk/
clipboard.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use crate::SelectionData;
4use crate::TargetEntry;
5use crate::{Clipboard, ffi};
6use glib::ffi::gpointer;
7use glib::translate::*;
8use libc::{c_char, c_uint};
9use std::boxed::Box as Box_;
10
11impl Clipboard {
12    #[doc(alias = "gtk_clipboard_set_with_data")]
13    pub fn set_with_data<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
14        &self,
15        targets: &[TargetEntry],
16        f: F,
17    ) -> bool {
18        unsafe extern "C" fn trampoline<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
19            clipboard: *mut ffi::GtkClipboard,
20            selection_data: *mut ffi::GtkSelectionData,
21            info: c_uint,
22            user_data: gpointer,
23        ) {
24            unsafe {
25                let f: &F = &*(user_data as *const F);
26                f(
27                    &from_glib_borrow(clipboard),
28                    &from_glib_borrow(selection_data),
29                    info,
30                );
31            }
32        }
33        unsafe extern "C" fn cleanup<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
34            _clipboard: *mut ffi::GtkClipboard,
35            user_data: gpointer,
36        ) {
37            unsafe {
38                let _ = Box_::<F>::from_raw(user_data as *mut _);
39            }
40        }
41        let stashed_targets: Vec<_> = targets.iter().map(|e| e.to_glib_none()).collect();
42        let mut t = Vec::with_capacity(stashed_targets.len());
43        for stash in &stashed_targets {
44            unsafe {
45                t.push(ffi::GtkTargetEntry {
46                    target: (*stash.0).target,
47                    flags: (*stash.0).flags,
48                    info: (*stash.0).info,
49                });
50            }
51        }
52        let t_ptr: *mut ffi::GtkTargetEntry = t.as_mut_ptr();
53        let f: Box_<F> = Box_::new(f);
54        let user_data = Box_::into_raw(f) as *mut _;
55        let success: bool = unsafe {
56            from_glib(ffi::gtk_clipboard_set_with_data(
57                self.to_glib_none().0,
58                t_ptr,
59                t.len() as c_uint,
60                Some(trampoline::<F>),
61                Some(cleanup::<F>),
62                user_data,
63            ))
64        };
65        if !success {
66            // Cleanup function is not called in case of a failure.
67            unsafe {
68                let _ = Box_::<F>::from_raw(user_data as *mut _);
69            }
70        }
71        success
72    }
73
74    #[doc(alias = "gtk_clipboard_request_uris")]
75    pub fn request_uris<P: FnOnce(&Clipboard, &[glib::GString]) + 'static>(&self, callback: P) {
76        let callback_data: Box_<P> = Box_::new(callback);
77        unsafe extern "C" fn callback_func<P: FnOnce(&Clipboard, &[glib::GString]) + 'static>(
78            clipboard: *mut ffi::GtkClipboard,
79            uris: *mut *mut c_char,
80            data: glib::ffi::gpointer,
81        ) {
82            unsafe {
83                let clipboard = from_glib_borrow(clipboard);
84                let uris: Vec<glib::GString> = FromGlibPtrContainer::from_glib_none(uris);
85                let callback: Box_<P> = Box_::from_raw(data as *mut _);
86                (*callback)(&clipboard, &uris);
87            }
88        }
89        let callback = Some(callback_func::<P> as _);
90        let super_callback0: Box_<P> = callback_data;
91        unsafe {
92            ffi::gtk_clipboard_request_uris(
93                self.to_glib_none().0,
94                callback,
95                Box_::into_raw(super_callback0) as *mut _,
96            );
97        }
98    }
99}
gtk/clipboard.rs

gtk/
clipboard.rs
