Major overhaul of input and communication systems

* Add input manager * WIP lifetime hell * Hell yeah, dark lifetime magic * Replace events with actions in tools * Fix borrow in GlobalEventHandler * Fix typo in response-handler * Distribute dispatch structure * Add translation from events to actions * Port default key actions to input_mapper * Split actions macro * Add handling for Ambiguous Mouse events * Fix warnings and clippy lints * Add actions macro * WIP rework * Add AsMessage macro * Add implementation for derived enums * Add macro implementation for top level message * Add #[child] attribute to indicate derivation * Replace some mentions of Actions and Responses with Message * It compiles !!! * Add functionality to some message handlers * Add document rendering * ICE * Rework the previous code while keeping basic functionality * Reduce parent-top-level macro args to only two * Add workaround for ICE * Fix cyclic reference in document.rs * Make derive_transitive_child a bit more powerful This addresses the todo that was left, enabling arbitrary expressions to be passed as the last parameter of a #[parent] attribute * Adapt frontend message format * Make responses use VecDeque Our responses are a queue so we should use a queue type for them * Move traits to sensible location * Are we rectangle yet? * Simplify, improve & document `derive_discriminant` * Change `child` to `sub_discriminant` This only applies to `ToDiscriminant`. Code using `#[impl_message]` continues to work. * Add docs for `derive_transitive_child` * Finish docs and improve macros The improvements are that impl_message now uses trait resolution to obtain the parent's discriminant and that derive_as_message now allows for non-unit variants (which we don't use but it's nice to have, just in case) * Remove logging call * Move files around and cleanup structure * Fix proc macro doc tests * Improve actions_fn!() macro * Add ellipse tool * Pass populated actions list to the input mapper * Add KeyState bitvector * Merge mouse buttons into "keyboard" * Add macro for initialization of key mapper table * Add syntactic sugar for the macro * Implement mapping function * Translate the remaining tools * Fix shape tool * Add keybindings for line and pen tool * Fix modifiers * Cleanup * Add doc comments for the actions macro * Fix formatting * Rename MouseMove to PointerMove * Add keybinds for tools * Apply review suggestions * Rename KeyMappings -> KeyMappingEntries * Apply review changes Co-authored-by: T0mstone <realt0mstone@gmail.com> Co-authored-by: Paul Kupper <kupper.pa@gmail.com>
2026-09-30 00:28:11 +08:00 · 2021-05-23 01:26:24 +02:00
parent 56c1110800
commit a596ce0104
72 changed files with 3028 additions and 1856 deletions
@@ -0,0 +1,55 @@
+use proc_macro2::{Span, TokenStream};
+use syn::{Data, DeriveInput};
+
+pub fn derive_as_message_impl(input_item: TokenStream) -> syn::Result<TokenStream> {
+	let input = syn::parse2::<DeriveInput>(input_item).unwrap();
+
+	let data = match input.data {
+		Data::Enum(data) => data,
+		_ => return Err(syn::Error::new(Span::call_site(), "Tried to derive AsMessage for non-enum")),
+	};
+
+	let input_type = input.ident;
+
+	let (globs, names) = data
+		.variants
+		.iter()
+		.map(|var| {
+			let var_name = &var.ident;
+			let var_name_s = var.ident.to_string();
+			if var.attrs.iter().any(|a| a.path.is_ident("child")) {
+				(
+					quote::quote! {
+						#input_type::#var_name(child)
+					},
+					quote::quote! {
+						format!("{}.{}", #var_name_s, child.local_name())
+					},
+				)
+			} else {
+				(
+					quote::quote! {
+						#input_type::#var_name { .. }
+					},
+					quote::quote! {
+						#var_name_s.to_string()
+					},
+				)
+			}
+		})
+		.unzip::<_, _, Vec<_>, Vec<_>>();
+
+	let res = quote::quote! {
+		impl AsMessage for #input_type {
+			fn local_name(self) -> String {
+				match self {
+					#(
+						#globs => #names
+					),*
+				}
+			}
+		}
+	};
+
+	Ok(res)
+}