feat: add searchable command palette

src/session.rs

@@ -155,6 +155,69 @@ Vamp.command("healthy") { |editor, args| editor.replace "healthy #{args}" }
         }
     }
 
+    #[test]
+    fn typed_palette_binding_prepares_arguments_and_retires_failed_plugin_commands() {
+        let fixture = Fixture::new();
+        fixture.file("buffer.txt", "base");
+        fixture.file(
+            "palette.rb",
+            r#"
+Vamp.plugin "palette_fixture", requires: ["text"]
+Vamp.command("palette_insert") { |editor, args| editor.insert args }
+Vamp.command("palette_fail") { |_, _| raise "palette fixture failure" }
+"#,
+        );
+        let mut session = fixture.open(
+            r#"
+Vamp.configure do |config|
+  config.plugin "palette.rb"
+  config.bind "ctrl+p", nil
+  config.bind "ctrl+f", config.core.palette
+end
+"#,
+        );
+        session.handle(Input::Ctrl('p'));
+        assert!(session.editor().palette().is_none());
+        session.handle(Input::Ctrl('f'));
+        for ch in "palette_insert".chars() {
+            session.handle(Input::Char(ch));
+        }
+        assert_eq!(
+            session.editor().palette().unwrap().entries[0].owner,
+            "palette_fixture"
+        );
+        session.handle(Input::Enter);
+        assert_eq!(session.editor().mode(), crate::editor::Mode::Command);
+        assert_eq!(session.editor().command_line(), "palette_insert ");
+        assert_eq!(session.editor().lines(), &["base"]);
+        for ch in "界!".chars() {
+            session.handle(Input::Char(ch));
+        }
+        session.handle(Input::Enter);
+        assert_eq!(session.editor().lines(), &["界!base"]);
+        session.handle(Input::Char('u'));
+        assert_eq!(session.editor().lines(), &["base"]);
+        session.handle(Input::Ctrl('f'));
+        for ch in "palette_fail".chars() {
+            session.handle(Input::Char(ch));
+        }
+        session.handle(Input::Enter);
+        session.handle(Input::Enter);
+        assert!(session.editor().message().contains("disabled"));
+        session.handle(Input::Ctrl('f'));
+        assert!(
+            !session
+                .editor()
+                .palette()
+                .unwrap()
+                .entries
+                .iter()
+                .any(|entry| entry.owner == "palette_fixture")
+        );
+        session.handle(Input::Escape);
+        assert_eq!(session.editor().lines(), &["base"]);
+    }
+
     #[test]
     fn configured_selection_actions_edit_together_and_invoke_plugins_once() {
         let fixture = Fixture::new();