webkit2gtk/auto/
favicon_database.rs1use glib::{
6 prelude::*,
7 signal::{connect_raw, SignalHandlerId},
8 translate::*,
9};
10use std::{boxed::Box as Box_, pin::Pin};
11
12glib::wrapper! {
13 #[doc(alias = "WebKitFaviconDatabase")]
14 pub struct FaviconDatabase(Object<ffi::WebKitFaviconDatabase, ffi::WebKitFaviconDatabaseClass>);
15
16 match fn {
17 type_ => || ffi::webkit_favicon_database_get_type(),
18 }
19}
20
21impl FaviconDatabase {
22 pub const NONE: Option<&'static FaviconDatabase> = None;
23}
24
25mod sealed {
26 pub trait Sealed {}
27 impl<T: super::IsA<super::FaviconDatabase>> Sealed for T {}
28}
29
30pub trait FaviconDatabaseExt: IsA<FaviconDatabase> + sealed::Sealed + 'static {
31 #[doc(alias = "webkit_favicon_database_clear")]
32 fn clear(&self) {
33 unsafe {
34 ffi::webkit_favicon_database_clear(self.as_ref().to_glib_none().0);
35 }
36 }
37
38 #[doc(alias = "webkit_favicon_database_get_favicon")]
39 #[doc(alias = "get_favicon")]
40 fn favicon<P: FnOnce(Result<cairo::Surface, glib::Error>) + 'static>(
41 &self,
42 page_uri: &str,
43 cancellable: Option<&impl IsA<gio::Cancellable>>,
44 callback: P,
45 ) {
46 let main_context = glib::MainContext::ref_thread_default();
47 let is_main_context_owner = main_context.is_owner();
48 let has_acquired_main_context = (!is_main_context_owner)
49 .then(|| main_context.acquire().ok())
50 .flatten();
51 assert!(
52 is_main_context_owner || has_acquired_main_context.is_some(),
53 "Async operations only allowed if the thread is owning the MainContext"
54 );
55
56 let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
57 Box_::new(glib::thread_guard::ThreadGuard::new(callback));
58 unsafe extern "C" fn favicon_trampoline<
59 P: FnOnce(Result<cairo::Surface, glib::Error>) + 'static,
60 >(
61 _source_object: *mut glib::gobject_ffi::GObject,
62 res: *mut gio::ffi::GAsyncResult,
63 user_data: glib::ffi::gpointer,
64 ) {
65 let mut error = std::ptr::null_mut();
66 let ret =
67 ffi::webkit_favicon_database_get_favicon_finish(_source_object as *mut _, res, &mut error);
68 let result = if error.is_null() {
69 Ok(from_glib_full(ret))
70 } else {
71 Err(from_glib_full(error))
72 };
73 let callback: Box_<glib::thread_guard::ThreadGuard<P>> = Box_::from_raw(user_data as *mut _);
74 let callback: P = callback.into_inner();
75 callback(result);
76 }
77 let callback = favicon_trampoline::<P>;
78 unsafe {
79 ffi::webkit_favicon_database_get_favicon(
80 self.as_ref().to_glib_none().0,
81 page_uri.to_glib_none().0,
82 cancellable.map(|p| p.as_ref()).to_glib_none().0,
83 Some(callback),
84 Box_::into_raw(user_data) as *mut _,
85 );
86 }
87 }
88
89 fn favicon_future(
90 &self,
91 page_uri: &str,
92 ) -> Pin<Box_<dyn std::future::Future<Output = Result<cairo::Surface, glib::Error>> + 'static>>
93 {
94 let page_uri = String::from(page_uri);
95 Box_::pin(gio::GioFuture::new(self, move |obj, cancellable, send| {
96 obj.favicon(&page_uri, Some(cancellable), move |res| {
97 send.resolve(res);
98 });
99 }))
100 }
101
102 #[doc(alias = "webkit_favicon_database_get_favicon_uri")]
103 #[doc(alias = "get_favicon_uri")]
104 fn favicon_uri(&self, page_uri: &str) -> Option<glib::GString> {
105 unsafe {
106 from_glib_full(ffi::webkit_favicon_database_get_favicon_uri(
107 self.as_ref().to_glib_none().0,
108 page_uri.to_glib_none().0,
109 ))
110 }
111 }
112
113 #[doc(alias = "favicon-changed")]
114 fn connect_favicon_changed<F: Fn(&Self, &str, &str) + 'static>(&self, f: F) -> SignalHandlerId {
115 unsafe extern "C" fn favicon_changed_trampoline<
116 P: IsA<FaviconDatabase>,
117 F: Fn(&P, &str, &str) + 'static,
118 >(
119 this: *mut ffi::WebKitFaviconDatabase,
120 page_uri: *mut libc::c_char,
121 favicon_uri: *mut libc::c_char,
122 f: glib::ffi::gpointer,
123 ) {
124 let f: &F = &*(f as *const F);
125 f(
126 FaviconDatabase::from_glib_borrow(this).unsafe_cast_ref(),
127 &glib::GString::from_glib_borrow(page_uri),
128 &glib::GString::from_glib_borrow(favicon_uri),
129 )
130 }
131 unsafe {
132 let f: Box_<F> = Box_::new(f);
133 connect_raw(
134 self.as_ptr() as *mut _,
135 b"favicon-changed\0".as_ptr() as *const _,
136 Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
137 favicon_changed_trampoline::<Self, F> as *const (),
138 )),
139 Box_::into_raw(f),
140 )
141 }
142 }
143}
144
145impl<O: IsA<FaviconDatabase>> FaviconDatabaseExt for O {}