1 use webcore::once::Once;
2 use webcore::value::Value;
3 use webcore::reference_type::ReferenceType;
4
funcall_adapter< F: FnOnce() >( callback: *mut F )5 extern fn funcall_adapter< F: FnOnce() >( callback: *mut F ) {
6 let callback = unsafe {
7 Box::from_raw( callback )
8 };
9
10 callback();
11 }
12
13 /// The `IWindowOrWorker` mixin describes several features common to
14 /// the `Window` and the global scope of web workers.
15 ///
16 /// You most likely don't want to `use` this directly; instead
17 /// you should `use stdweb::traits::*;`.
18 ///
19 /// [(JavaScript docs)](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope)
20 // https://html.spec.whatwg.org/#windoworworkerglobalscope
21 pub trait IWindowOrWorker: ReferenceType {
22 /// Sets a timer which executes a function once after the timer expires.
23 ///
24 /// [(JavaScript docs)](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout)
25 // https://html.spec.whatwg.org/#windoworworkerglobalscope-mixin:dom-settimeout
set_timeout< F: FnOnce() + 'static >( &self, callback: F, timeout: u32 )26 fn set_timeout< F: FnOnce() + 'static >( &self, callback: F, timeout: u32 ) {
27 let callback = Box::into_raw( Box::new( callback ) );
28 __js_raw_asm!( "\
29 Module.STDWEB_PRIVATE.acquire_js_reference( $0 ).setTimeout( function() {\
30 Module.STDWEB_PRIVATE.dyncall( 'vi', $1, [$2] );\
31 }, $3 );\
32 ", self.as_ref().as_raw(), funcall_adapter::< F > as extern fn( *mut F ), callback, timeout );
33 }
34
35 /// Sets a timer which executes a function once after the timer expires and can be cleared
36 ///
37 /// [(JavaScript docs)](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout)
38 // https://html.spec.whatwg.org/#windoworworkerglobalscope-mixin:dom-settimeout
set_clearable_timeout< F: FnOnce() + 'static >( &self, callback: F, timeout: u32 ) -> TimeoutHandle39 fn set_clearable_timeout< F: FnOnce() + 'static >( &self, callback: F, timeout: u32 ) -> TimeoutHandle {
40 TimeoutHandle(js! (
41 const callback = @{Once(callback)};
42 return {
43 id: setTimeout(callback, @{timeout}),
44 callback
45 };
46 ))
47 }
48 }
49
50 #[derive(Debug)]
51 /// A reference to a timeout object created by set_clearable_timeout
52 pub struct TimeoutHandle(Value);
53
54 impl TimeoutHandle {
55 /// Clears a timer previously established by set_clearable_timeout
56 ///
57 /// [(JavaScript docs)](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/clearTimeout)
58 // https://html.spec.whatwg.org/#windoworworkerglobalscope-mixin:dom-clear-timeout
clear( self )59 pub fn clear( self ) {
60 js! { @(no_return)
61 var val = @{&self.0};
62 clearTimeout(val.id);
63 val.callback.drop();
64 }
65 }
66 }
67