StratoSDK is a framework with a declarative approach similar to Flutter/React, written and designed entirely for Rust.
| 1 | use crate::keymap::macros::*; |
| 2 | |
| 3 | use super::*; |
| 4 | |
| 5 | #[test] |
| 6 | fn test_matcher() -> anyhow::Result<()> { |
| 7 | #[derive(Debug, PartialEq)] |
| 8 | enum Action { |
| 9 | A(String), |
| 10 | B, |
| 11 | AB, |
| 12 | } |
| 13 | |
| 14 | let keymap = Keymap::new(vec![ |
| 15 | FixedBinding::new("a", Action::A("b".into()), id!("a")), |
| 16 | FixedBinding::new("b", Action::B, id!("a")), |
| 17 | FixedBinding::new("a b", Action::AB, id!("a") | id!("b")), |
| 18 | ]); |
| 19 | |
| 20 | let mut ctx_a = Context::default(); |
| 21 | ctx_a.set.insert("a"); |
| 22 | |
| 23 | let mut ctx_b = Context::default(); |
| 24 | ctx_b.set.insert("b"); |
| 25 | |
| 26 | let mut matcher = Matcher::new(keymap); |
| 27 | |
| 28 | let view_id = EntityId::new(); |
| 29 | |
| 30 | // Basic match |
| 31 | assert_eq!( |
| 32 | matcher |
| 33 | .test_keystroke("a", view_id, &ctx_a) |
| 34 | .unwrap() |
| 35 | .as_action::<Action>(), |
| 36 | &Action::A("b".into()) |
| 37 | ); |
| 38 | |
| 39 | // Multi-keystroke match |
| 40 | assert!(matcher.test_keystroke("a", view_id, &ctx_b).is_none()); |
| 41 | assert_eq!( |
| 42 | matcher |
| 43 | .test_keystroke("b", view_id, &ctx_b) |
| 44 | .unwrap() |
| 45 | .as_action::<Action>(), |
| 46 | &Action::AB |
| 47 | ); |
| 48 | |
| 49 | // Failed matches don't interfere with matching subsequent keys |
| 50 | assert!(matcher.test_keystroke("x", view_id, &ctx_a).is_none()); |
| 51 | assert_eq!( |
| 52 | matcher |
| 53 | .test_keystroke("a", view_id, &ctx_a) |
| 54 | .unwrap() |
| 55 | .as_action::<Action>(), |
| 56 | &Action::A("b".into()) |
| 57 | ); |
| 58 | |
| 59 | // Pending keystrokes are cleared when the context changes |
| 60 | assert!(matcher.test_keystroke("a", view_id, &ctx_b).is_none()); |
| 61 | assert_eq!( |
| 62 | matcher |
| 63 | .test_keystroke("b", view_id, &ctx_a) |
| 64 | .unwrap() |
| 65 | .as_action::<Action>(), |
| 66 | &Action::B |
| 67 | ); |
| 68 | |
| 69 | let mut ctx_c = Context::default(); |
| 70 | ctx_c.set.insert("c"); |
| 71 | |
| 72 | // Pending keystrokes are maintained per-view |
| 73 | let view_id1 = EntityId::new(); |
| 74 | let view_id2 = EntityId::new(); |
| 75 | assert_ne!(view_id1, view_id2); |
| 76 | assert!(matcher.test_keystroke("a", view_id1, &ctx_b).is_none()); |
| 77 | assert!(matcher.test_keystroke("a", view_id2, &ctx_c).is_none()); |
| 78 | assert_eq!( |
| 79 | matcher |
| 80 | .test_keystroke("b", view_id1, &ctx_b) |
| 81 | .unwrap() |
| 82 | .as_action::<Action>(), |
| 83 | &Action::AB |
| 84 | ); |
| 85 | |
| 86 | Ok(()) |
| 87 | } |
| 88 | |
| 89 | #[test] |
| 90 | fn test_editable_binding_matching() { |
| 91 | #[derive(Debug, PartialEq)] |
| 92 | enum Action { |
| 93 | A(&'static str), |
| 94 | B, |
| 95 | AOrB, |
| 96 | } |
| 97 | |
| 98 | let mut keymap = Keymap::default(); |
| 99 | use crate::keymap::macros::*; |
| 100 | keymap.register_editable_bindings([ |
| 101 | EditableBinding::new("a", "Action for A", Action::A("b")) |
| 102 | .with_key_binding("a") |
| 103 | .with_context_predicate(id!("a")), |
| 104 | EditableBinding::new("b", "Action for B", Action::B) |
| 105 | .with_key_binding("b") |
| 106 | .with_context_predicate(id!("a")), |
| 107 | EditableBinding::new("a_or_b", "Action for A or B", Action::AOrB) |
| 108 | .with_key_binding("a b") |
| 109 | .with_context_predicate(id!("a") | id!("b")), |
| 110 | ]); |
| 111 | |
| 112 | let mut ctx_a = Context::default(); |
| 113 | ctx_a.set.insert("a"); |
| 114 | |
| 115 | let mut ctx_b = Context::default(); |
| 116 | ctx_b.set.insert("b"); |
| 117 | |
| 118 | let mut matcher = Matcher::new(keymap); |
| 119 | |
| 120 | let view_id = EntityId::new(); |
| 121 | |
| 122 | // Basic match |
| 123 | assert_eq!( |
| 124 | matcher |
| 125 | .test_keystroke("a", view_id, &ctx_a) |
| 126 | .unwrap() |
| 127 | .as_action::<Action>(), |
| 128 | &Action::A("b"), |
| 129 | ); |
| 130 | |
| 131 | // Multi-keystroke match |
| 132 | assert!(matcher.test_keystroke("a", view_id, &ctx_b).is_none()); |
| 133 | assert_eq!( |
| 134 | matcher |
| 135 | .test_keystroke("b", view_id, &ctx_b) |
| 136 | .unwrap() |
| 137 | .as_action::<Action>(), |
| 138 | &Action::AOrB |
| 139 | ); |
| 140 | |
| 141 | // Failed matches don't interfere with matching subsequent keys |
| 142 | assert!(matcher.test_keystroke("x", view_id, &ctx_a).is_none()); |
| 143 | assert_eq!( |
| 144 | matcher |
| 145 | .test_keystroke("a", view_id, &ctx_a) |
| 146 | .unwrap() |
| 147 | .as_action::<Action>(), |
| 148 | &Action::A("b") |
| 149 | ); |
| 150 | |
| 151 | // Pending keystrokes are cleared when the context changes |
| 152 | assert!(matcher.test_keystroke("a", view_id, &ctx_b).is_none()); |
| 153 | assert_eq!( |
| 154 | matcher |
| 155 | .test_keystroke("b", view_id, &ctx_a) |
| 156 | .unwrap() |
| 157 | .as_action::<Action>(), |
| 158 | &Action::B |
| 159 | ); |
| 160 | |
| 161 | let mut ctx_c = Context::default(); |
| 162 | ctx_c.set.insert("c"); |
| 163 | |
| 164 | // Pending keystrokes are maintained per-view |
| 165 | let view_id1 = EntityId::new(); |
| 166 | let view_id2 = EntityId::new(); |
| 167 | assert_ne!(view_id1, view_id2); |
| 168 | assert!(matcher.test_keystroke("a", view_id1, &ctx_b).is_none()); |
| 169 | assert!(matcher.test_keystroke("a", view_id2, &ctx_c).is_none()); |
| 170 | assert_eq!( |
| 171 | matcher |
| 172 | .test_keystroke("b", view_id1, &ctx_b) |
| 173 | .unwrap() |
| 174 | .as_action::<Action>(), |
| 175 | &Action::AOrB |
| 176 | ); |
| 177 | } |
| 178 | |
| 179 | #[test] |
| 180 | fn test_bindings_for_context() { |
| 181 | #[derive(Debug)] |
| 182 | enum Action { |
| 183 | A, |
| 184 | B, |
| 185 | C, |
| 186 | } |
| 187 | let keymap = Keymap::new(vec![ |
| 188 | FixedBinding::new("a", Action::A, id!("a")), |
| 189 | FixedBinding::new("b", Action::B, id!("b")), |
| 190 | FixedBinding::new("c", Action::C, id!("b")), |
| 191 | ]); |
| 192 | let matcher = Matcher::new(keymap); |
| 193 | |
| 194 | let mut ctx_a = Context::default(); |
| 195 | ctx_a.set.insert("a"); |
| 196 | |
| 197 | let mut ctx_b = Context::default(); |
| 198 | ctx_b.set.insert("b"); |
| 199 | |
| 200 | // Getting bindings for the 'a' context returns a single result |
| 201 | let ctx_a_bindings = matcher |
| 202 | .bindings_for_context(ctx_a) |
| 203 | .filter_map(|bind| match bind.trigger { |
| 204 | Trigger::Keystrokes(keys) => { |
| 205 | assert_eq!(keys.len(), 1); |
| 206 | Some(keys[0].normalized()) |
| 207 | } |
| 208 | _ => None, |
| 209 | }) |
| 210 | .collect::<Vec<_>>(); |
| 211 | |
| 212 | assert_eq!(ctx_a_bindings.len(), 1); |
| 213 | assert_eq!(ctx_a_bindings, vec!["a"]); |
| 214 | |
| 215 | // Getting bindings for the 'b' context returns two results, in the reverse order they |
| 216 | // added, so the "c" binding first followed by the "b" binding |
| 217 | let ctx_b_bindings = matcher |
| 218 | .bindings_for_context(ctx_b) |
| 219 | .filter_map(|bind| match bind.trigger { |
| 220 | Trigger::Keystrokes(keys) => { |
| 221 | assert_eq!(keys.len(), 1); |
| 222 | Some(keys[0].normalized()) |
| 223 | } |
| 224 | _ => None, |
| 225 | }) |
| 226 | .collect::<Vec<_>>(); |
| 227 | assert_eq!(ctx_b_bindings, vec!["c", "b"]); |
| 228 | } |
| 229 | |
| 230 | impl Matcher { |
| 231 | fn test_keystroke( |
| 232 | &mut self, |
| 233 | keystroke: &str, |
| 234 | view_id: EntityId, |
| 235 | ctx: &Context, |
| 236 | ) -> Option<Arc<dyn Action>> { |
| 237 | match self.push_keystroke(Keystroke::parse(keystroke).unwrap(), view_id, ctx) { |
| 238 | MatchResult::Action(action) => Some(action), |
| 239 | _ => None, |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | trait AsAction { |
| 245 | fn as_action<A: Action>(&self) -> &A; |
| 246 | } |
| 247 | |
| 248 | impl AsAction for Arc<dyn Action> { |
| 249 | fn as_action<A: Action>(&self) -> &A { |
| 250 | self.as_ref().as_any().downcast_ref::<A>().unwrap() |
| 251 | } |
| 252 | } |
| 253 |