From 327932ba3b39f832d529cd274fd81e376d7c6810 Mon Sep 17 00:00:00 2001
From: Kay Simmons <kay@zed.dev>
Date: Fri, 10 Feb 2023 16:09:15 -0800
Subject: [PATCH] Remove catch all keymap and KeyPressed action

---
 crates/command_palette/src/command_palette.rs |  2 +-
 crates/gpui/src/keymap_matcher.rs             | 19 ++--------
 crates/gpui/src/keymap_matcher/binding.rs     | 36 ++++++-------------
 crates/gpui/src/platform/mac/platform.rs      |  2 +-
 4 files changed, 14 insertions(+), 45 deletions(-)

diff --git a/crates/command_palette/src/command_palette.rs b/crates/command_palette/src/command_palette.rs
index d4625cbce0525e845ff2b85def695bcb707a029f..5b5d8f1162f352166ca2e9f733dabd2d3b129906 100644
--- a/crates/command_palette/src/command_palette.rs
+++ b/crates/command_palette/src/command_palette.rs
@@ -65,7 +65,7 @@ impl CommandPalette {
                     action,
                     keystrokes: bindings
                         .iter()
-                        .filter_map(|binding| binding.keystrokes())
+                        .map(|binding| binding.keystrokes())
                         .last()
                         .map_or(Vec::new(), |keystrokes| keystrokes.to_vec()),
                 })
diff --git a/crates/gpui/src/keymap_matcher.rs b/crates/gpui/src/keymap_matcher.rs
index c7de0352328d287b1248b80699c06df7fd07ae0e..edcc458658eeff81358171ecbdf9a6cf324056e4 100644
--- a/crates/gpui/src/keymap_matcher.rs
+++ b/crates/gpui/src/keymap_matcher.rs
@@ -6,24 +6,15 @@ mod keystroke;
 use std::{any::TypeId, fmt::Debug};
 
 use collections::HashMap;
-use serde::Deserialize;
 use smallvec::SmallVec;
 
-use crate::{impl_actions, Action};
+use crate::Action;
 
 pub use binding::{Binding, BindingMatchResult};
 pub use keymap::Keymap;
 pub use keymap_context::{KeymapContext, KeymapContextPredicate};
 pub use keystroke::Keystroke;
 
-#[derive(Clone, Debug, Default, PartialEq, Eq, Deserialize)]
-pub struct KeyPressed {
-    #[serde(default)]
-    pub keystroke: Keystroke,
-}
-
-impl_actions!(gpui, [KeyPressed]);
-
 pub struct KeymapMatcher {
     pub contexts: Vec<KeymapContext>,
     pending_views: HashMap<usize, KeymapContext>,
@@ -102,13 +93,7 @@ impl KeymapMatcher {
             for binding in self.keymap.bindings().iter().rev() {
                 match binding.match_keys_and_context(&self.pending_keystrokes, &self.contexts[i..])
                 {
-                    BindingMatchResult::Complete(mut action) => {
-                        // Swap in keystroke for special KeyPressed action
-                        if action.name() == "KeyPressed" && action.namespace() == "gpui" {
-                            action = Box::new(KeyPressed {
-                                keystroke: keystroke.clone(),
-                            });
-                        }
+                    BindingMatchResult::Complete(action) => {
                         matched_bindings.push((view_id, action))
                     }
                     BindingMatchResult::Partial => {
diff --git a/crates/gpui/src/keymap_matcher/binding.rs b/crates/gpui/src/keymap_matcher/binding.rs
index 81464378848e4ee25bdd4f3150391757035d6d98..c1cfd14e82d8d3e3235a7a2c3e7d507cd78d9648 100644
--- a/crates/gpui/src/keymap_matcher/binding.rs
+++ b/crates/gpui/src/keymap_matcher/binding.rs
@@ -7,7 +7,7 @@ use super::{KeymapContext, KeymapContextPredicate, Keystroke};
 
 pub struct Binding {
     action: Box<dyn Action>,
-    keystrokes: Option<SmallVec<[Keystroke; 2]>>,
+    keystrokes: SmallVec<[Keystroke; 2]>,
     context_predicate: Option<KeymapContextPredicate>,
 }
 
@@ -23,16 +23,10 @@ impl Binding {
             None
         };
 
-        let keystrokes = if keystrokes == "*" {
-            None // Catch all context
-        } else {
-            Some(
-                keystrokes
-                    .split_whitespace()
-                    .map(Keystroke::parse)
-                    .collect::<Result<_>>()?,
-            )
-        };
+        let keystrokes = keystrokes
+            .split_whitespace()
+            .map(Keystroke::parse)
+            .collect::<Result<_>>()?;
 
         Ok(Self {
             keystrokes,
@@ -53,20 +47,10 @@ impl Binding {
         pending_keystrokes: &Vec<Keystroke>,
         contexts: &[KeymapContext],
     ) -> BindingMatchResult {
-        if self
-            .keystrokes
-            .as_ref()
-            .map(|keystrokes| keystrokes.starts_with(&pending_keystrokes))
-            .unwrap_or(true)
-            && self.match_context(contexts)
+        if self.keystrokes.as_ref().starts_with(&pending_keystrokes) && self.match_context(contexts)
         {
             // If the binding is completed, push it onto the matches list
-            if self
-                .keystrokes
-                .as_ref()
-                .map(|keystrokes| keystrokes.len() == pending_keystrokes.len())
-                .unwrap_or(true)
-            {
+            if self.keystrokes.as_ref().len() == pending_keystrokes.len() {
                 BindingMatchResult::Complete(self.action.boxed_clone())
             } else {
                 BindingMatchResult::Partial
@@ -82,14 +66,14 @@ impl Binding {
         contexts: &[KeymapContext],
     ) -> Option<SmallVec<[Keystroke; 2]>> {
         if self.action.eq(action) && self.match_context(contexts) {
-            self.keystrokes.clone()
+            Some(self.keystrokes.clone())
         } else {
             None
         }
     }
 
-    pub fn keystrokes(&self) -> Option<&[Keystroke]> {
-        self.keystrokes.as_deref()
+    pub fn keystrokes(&self) -> &[Keystroke] {
+        self.keystrokes.as_slice()
     }
 
     pub fn action(&self) -> &dyn Action {
diff --git a/crates/gpui/src/platform/mac/platform.rs b/crates/gpui/src/platform/mac/platform.rs
index 5d132275854c8b92e317b8226cf4d869dd92f422..3d57a7fe2ae458248179d16d3ecbdddfc784fa5b 100644
--- a/crates/gpui/src/platform/mac/platform.rs
+++ b/crates/gpui/src/platform/mac/platform.rs
@@ -184,7 +184,7 @@ impl MacForegroundPlatform {
                     .map(|binding| binding.keystrokes());
 
                 let item;
-                if let Some(keystrokes) = keystrokes.flatten() {
+                if let Some(keystrokes) = keystrokes {
                     if keystrokes.len() == 1 {
                         let keystroke = &keystrokes[0];
                         let mut mask = NSEventModifierFlags::empty();