zeta: Add action to clear edit history (#21813)

Co-Authored-by: Antonio <antonio@zed.dev>

Release Notes:

- N/A

---------

Co-authored-by: Antonio <antonio@zed.dev>

crates/zed/src/zed/inline_completion_registry.rs

@@ -49,12 +49,19 @@ pub fn init(client: Arc<Client>, cx: &mut AppContext) {
         });
     }
 
+    if cx.has_flag::<ZetaFeatureFlag>() {
+        cx.on_action(clear_zeta_edit_history);
+    }
+
     cx.observe_flag::<ZetaFeatureFlag, _>({
         let editors = editors.clone();
         let client = client.clone();
-        move |_flag, cx| {
+        move |active, cx| {
             let provider = all_language_settings(None, cx).inline_completions.provider;
-            assign_inline_completion_providers(&editors, provider, &client, cx)
+            assign_inline_completion_providers(&editors, provider, &client, cx);
+            if active && !cx.is_action_available(&zeta::ClearHistory) {
+                cx.on_action(clear_zeta_edit_history);
+            }
         }
     })
     .detach();
@@ -73,6 +80,12 @@ pub fn init(client: Arc<Client>, cx: &mut AppContext) {
     .detach();
 }
 
+fn clear_zeta_edit_history(_: &zeta::ClearHistory, cx: &mut AppContext) {
+    if let Some(zeta) = zeta::Zeta::global(cx) {
+        zeta.update(cx, |zeta, _| zeta.clear_history());
+    }
+}
+
 fn assign_inline_completion_providers(
     editors: &Rc<RefCell<HashMap<WeakView<Editor>, AnyWindowHandle>>>,
     provider: InlineCompletionProvider,

crates/zeta/src/zeta.rs

@@ -6,7 +6,7 @@ use anyhow::{anyhow, Context as _, Result};
 use client::Client;
 use collections::{HashMap, HashSet, VecDeque};
 use futures::AsyncReadExt;
-use gpui::{AppContext, Context, Global, Model, ModelContext, Subscription, Task};
+use gpui::{actions, AppContext, Context, Global, Model, ModelContext, Subscription, Task};
 use http_client::{HttpClient, Method};
 use language::{
     language_settings::all_language_settings, Anchor, Buffer, BufferSnapshot, OffsetRangeExt,
@@ -34,6 +34,8 @@ const EDITABLE_REGION_START_MARKER: &'static str = "<|editable_region_start|>";
 const EDITABLE_REGION_END_MARKER: &'static str = "<|editable_region_end|>";
 const BUFFER_CHANGE_GROUPING_INTERVAL: Duration = Duration::from_secs(1);
 
+actions!(zeta, [ClearHistory]);
+
 #[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
 pub struct InlineCompletionId(Uuid);
 
@@ -155,6 +157,10 @@ impl Zeta {
         })
     }
 
+    pub fn clear_history(&mut self) {
+        self.events.clear();
+    }
+
     fn new(client: Arc<Client>, cx: &mut ModelContext<Self>) -> Self {
         let refresh_llm_token_listener = language_models::RefreshLlmTokenListener::global(cx);