Initial work

Author: pokey

src/core/Decorations.ts

@@ -19,6 +19,7 @@ import {
   DEFAULT_HAT_HEIGHT_EM,
   DEFAULT_VERTICAL_OFFSET_EM,
 } from "./shapeMeasurements";
+import { CommandServerApi } from "../util/getExtensionApi";
 
 export type DecorationMap = {
   [k in HatStyleName]?: vscode.TextEditorDecorationType;
@@ -37,7 +38,8 @@ export default class Decorations {
 
   constructor(
     fontMeasurements: FontMeasurements,
-    private extensionPath: string
+    private extensionPath: string,
+    private commandServerApi: CommandServerApi | null
   ) {
     this.constructDecorations(fontMeasurements);
   }
@@ -154,6 +156,13 @@ export default class Decorations {
       (shape) => shapeEnablement[shape]
     );
 
+    if (this.commandServerApi != null) {
+      this.commandServerApi.globalState.update("cursorless.hatEnablement", {
+        colors: activeHatColors.filter((color) => color !== "default"),
+        shapes: activeNonDefaultHatShapes,
+      });
+    }
+
     this.hatStyleMap = {
       ...Object.fromEntries(
         activeHatColors.map((color) => [color, { color, shape: "default" }])

src/extension.ts

@@ -16,16 +16,21 @@ import { logBranchTypes } from "./util/debug";
 import { TestCase } from "./testUtil/TestCase";
 import { ThatMark } from "./core/ThatMark";
 import { TestCaseRecorder } from "./testUtil/TestCaseRecorder";
-import { getParseTreeApi } from "./util/getExtensionApi";
+import { getCommandServerApi, getParseTreeApi } from "./util/getExtensionApi";
 import { canonicalizeAndValidateCommand } from "./canonicalizeAndValidateCommand";
 import canonicalizeActionName from "./canonicalizeActionName";
 
 export async function activate(context: vscode.ExtensionContext) {
+  const { getNodeAtLocation } = await getParseTreeApi();
+  const commandServerApi = await getCommandServerApi();
+
   const fontMeasurements = new FontMeasurements(context);
   await fontMeasurements.calculate();
-  const decorations = new Decorations(fontMeasurements, context.extensionPath);
-
-  const { getNodeAtLocation } = await getParseTreeApi();
+  const decorations = new Decorations(
+    fontMeasurements,
+    context.extensionPath,
+    commandServerApi
+  );
 
   var isActive = vscode.workspace
     .getConfiguration("cursorless")

src/util/getExtensionApi.ts

@@ -15,9 +15,20 @@ export interface ParseTreeApi {
   loadLanguage: (languageId: string) => Promise<boolean>;
 }
 
+export interface CommandServerApi {
+  globalState: vscode.Memento;
+  workspaceState: vscode.Memento;
+}
+
 export async function getExtensionApi<T>(extensionId: string) {
   const extension = vscode.extensions.getExtension(extensionId);
 
+  return extension == null ? null : ((await extension.activate()) as T);
+}
+
+export async function getExtensionApiStrict<T>(extensionId: string) {
+  const extension = vscode.extensions.getExtension(extensionId);
+
   if (extension == null) {
     throw new Error(`Could not get ${extensionId} extension`);
   }
@@ -26,7 +37,14 @@ export async function getExtensionApi<T>(extensionId: string) {
 }
 
 export const getCursorlessApi = () =>
-  getExtensionApi<CursorlessApi>("pokey.cursorless");
+  getExtensionApiStrict<CursorlessApi>("pokey.cursorless");
 
 export const getParseTreeApi = () =>
-  getExtensionApi<ParseTreeApi>("pokey.parse-tree");
+  getExtensionApiStrict<ParseTreeApi>("pokey.parse-tree");
+
+/**
+ *
+ * @returns Command server API or null if not installed
+ */
+export const getCommandServerApi = () =>
+  getExtensionApi<CommandServerApi>("pokey.command-server");