windows: Fix keystroke & keymap (#36572)

Closes #36300

This PR follows Windows conventions by introducing
`KeybindingKeystroke`, so shortcuts now show up as `ctrl-shift-4`
instead of `ctrl-$`.

It also fixes issues with keyboard layouts: when `use_key_equivalents`
is set to true, keys are remapped based on their virtual key codes. For
example, `ctrl-\` on a standard English layout will be mapped to
`ctrl-ё` on a Russian layout.


Release Notes:

- N/A

---------

Co-authored-by: Kate <kate@zed.dev>

crates/gpui/src/keymap/binding.rs

@@ -1,14 +1,15 @@
 use std::rc::Rc;
 
-use collections::HashMap;
-
-use crate::{Action, InvalidKeystrokeError, KeyBindingContextPredicate, Keystroke, SharedString};
+use crate::{
+    Action, AsKeystroke, DummyKeyboardMapper, InvalidKeystrokeError, KeyBindingContextPredicate,
+    KeybindingKeystroke, Keystroke, PlatformKeyboardMapper, SharedString,
+};
 use smallvec::SmallVec;
 
 /// A keybinding and its associated metadata, from the keymap.
 pub struct KeyBinding {
     pub(crate) action: Box<dyn Action>,
-    pub(crate) keystrokes: SmallVec<[Keystroke; 2]>,
+    pub(crate) keystrokes: SmallVec<[KeybindingKeystroke; 2]>,
     pub(crate) context_predicate: Option<Rc<KeyBindingContextPredicate>>,
     pub(crate) meta: Option<KeyBindingMetaIndex>,
     /// The json input string used when building the keybinding, if any
@@ -32,7 +33,15 @@ impl KeyBinding {
     pub fn new<A: Action>(keystrokes: &str, action: A, context: Option<&str>) -> Self {
         let context_predicate =
             context.map(|context| KeyBindingContextPredicate::parse(context).unwrap().into());
-        Self::load(keystrokes, Box::new(action), context_predicate, None, None).unwrap()
+        Self::load(
+            keystrokes,
+            Box::new(action),
+            context_predicate,
+            false,
+            None,
+            &DummyKeyboardMapper,
+        )
+        .unwrap()
     }
 
     /// Load a keybinding from the given raw data.
@@ -40,24 +49,22 @@ impl KeyBinding {
         keystrokes: &str,
         action: Box<dyn Action>,
         context_predicate: Option<Rc<KeyBindingContextPredicate>>,
-        key_equivalents: Option<&HashMap<char, char>>,
+        use_key_equivalents: bool,
         action_input: Option<SharedString>,
+        keyboard_mapper: &dyn PlatformKeyboardMapper,
     ) -> std::result::Result<Self, InvalidKeystrokeError> {
-        let mut keystrokes: SmallVec<[Keystroke; 2]> = keystrokes
+        let keystrokes: SmallVec<[KeybindingKeystroke; 2]> = keystrokes
             .split_whitespace()
-            .map(Keystroke::parse)
+            .map(|source| {
+                let keystroke = Keystroke::parse(source)?;
+                Ok(KeybindingKeystroke::new(
+                    keystroke,
+                    use_key_equivalents,
+                    keyboard_mapper,
+                ))
+            })
             .collect::<std::result::Result<_, _>>()?;
 
-        if let Some(equivalents) = key_equivalents {
-            for keystroke in keystrokes.iter_mut() {
-                if keystroke.key.chars().count() == 1
-                    && let Some(key) = equivalents.get(&keystroke.key.chars().next().unwrap())
-                {
-                    keystroke.key = key.to_string();
-                }
-            }
-        }
-
         Ok(Self {
             keystrokes,
             action,
@@ -79,13 +86,13 @@ impl KeyBinding {
     }
 
     /// Check if the given keystrokes match this binding.
-    pub fn match_keystrokes(&self, typed: &[Keystroke]) -> Option<bool> {
+    pub fn match_keystrokes(&self, typed: &[impl AsKeystroke]) -> Option<bool> {
         if self.keystrokes.len() < typed.len() {
             return None;
         }
 
         for (target, typed) in self.keystrokes.iter().zip(typed.iter()) {
-            if !typed.should_match(target) {
+            if !typed.as_keystroke().should_match(target) {
                 return None;
             }
         }
@@ -94,7 +101,7 @@ impl KeyBinding {
     }
 
     /// Get the keystrokes associated with this binding
-    pub fn keystrokes(&self) -> &[Keystroke] {
+    pub fn keystrokes(&self) -> &[KeybindingKeystroke] {
         self.keystrokes.as_slice()
     }