ambee/giterated

So. Much. Work.

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Amber - ⁨2⁩ years ago

parent: tbd commit: ⁨b05f964⁩

⁨giterated-plugins/giterated-plugin/src/callback/value.rs⁩ - ⁨2912⁩ bytes

Raw

1	use std::future::Future;
2
3	use giterated_models::{
4	error::OperationError, object::GiteratedObject, value::GiteratedObjectValue,
5	};
6
7	use crate::{new_stack::PluginState, AnyObject, NewAnyValue};
8
9	use super::CallbackPtr;
10
11	#[derive(Copy, Clone)]
12	pub struct ValueGetterCallback {
13	pub callback_ptr: CallbackPtr,
14	pub func: unsafe extern "C" fn(
15	CallbackPtr,
16	&PluginState,
17	object: AnyObject,
18	) -> Result<NewAnyValue, ()>,
19	}
20
21	impl ValueGetterCallback {
22	pub fn new<S, O, V, T: IntoPluginValueGetter<S, O, V>>(handler: T) -> Self {
23	Self {
24	func: T::get_value,
25	callback_ptr: handler.callback_ptr(),
26	}
27	}
28	}
29
30	pub trait IntoPluginValueGetter<S, O, V> {
31	unsafe extern "C" fn get_value(
32	callback: CallbackPtr,
33	state: &PluginState,
34	object: AnyObject,
35	) -> Result<NewAnyValue, ()>;
36
37	fn callback_ptr(&self) -> CallbackPtr;
38	}
39
40	impl<F, S, O, V, Fut> IntoPluginValueGetter<S, O, V> for F
41	where
42	Fut: Future<Output = Result<V, OperationError<anyhow::Error>>>,
43	S: Clone,
44	O: GiteratedObject,
45	V: GiteratedObjectValue<Object = O>,
46	F: Fn(S, O) -> Fut,
47	{
48	unsafe extern "C" fn get_value(
49	callback: CallbackPtr,
50	state: &PluginState,
51	mut object: AnyObject,
52	) -> Result<NewAnyValue, ()> {
53	let _guard = trace_span!(
54	"get_value handler",
55	object = O::object_name(),
56	value = V::value_name()
57	)
58	.entered();
59	let state = unsafe { state.transmute_ref::<S>() };
60
61	let object = unsafe { object.transmute_owned::<O>() };
62
63	// Cast the callback ptr to ourselves
64	let callback: *const F = std::mem::transmute(callback.0);
65	let callback = callback.as_ref().unwrap();
66
67	let result = callback(state.clone(), *object);
68
69	// match result {
70	// Ok(value) => Ok(NewAnyValue::new(value)),
71	// Err(_) => todo!(),
72	// }
73
74	todo!()
75	}
76
77	fn callback_ptr(&self) -> CallbackPtr {
78	unsafe { CallbackPtr::from_raw(self as const _ as const ()) }
79	}
80	}
81
82	pub struct ValueChangeCallback {
83	func: unsafe extern "C" fn(
84	&PluginState,
85	object: AnyObject,
86	value_name: &str,
87	new_value: NewAnyValue,
88	),
89	}
90
91	pub trait IntoValueChangeCallback<S, O> {
92	unsafe extern "C" fn value_changed(
93	state: &PluginState,
94	object: AnyObject,
95	value_name: &str,
96	new_value: NewAnyValue,
97	);
98	}
99
100	impl<F, S, O> IntoValueChangeCallback<S, O> for F {
101	unsafe extern "C" fn value_changed(
102	state: &PluginState,
103	object: AnyObject,
104	value_name: &str,
105	new_value: NewAnyValue,
106	) {
107	todo!()
108	}
109	}
110
111	impl ValueChangeCallback {
112	pub fn new<S, O, T: IntoValueChangeCallback<S, O>>() -> Self {
113	Self {
114	func: T::value_changed,
115	}
116	}
117	}
118