feat: Automatically start in Insert mode for specific schemes (#9854)

Refs #8782

Author: astron8t-voyagerx

package.json

@@ -813,6 +813,16 @@
           "type": "boolean",
           "description": "Start in Insert mode."
         },
+        "vim.startInInsertModeSchemes": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "default": [
+            "comment"
+          ],
+          "markdownDescription": "List of document URI schemes that should automatically start in Insert mode. For example, use `[\"comment\"]` for GitHub PR comment editors, or `[\"comment\", \"gitlens\"]` for multiple schemes."
+        },
         "vim.handleKeys": {
           "type": "object",
           "description": "Delegate certain key combinations back to VS Code to be handled natively.",

src/configuration/configuration.ts

@@ -317,6 +317,8 @@ class Configuration implements IConfiguration {
 
   startInInsertMode = false;
 
+  startInInsertModeSchemes: string[] = ['comment'];
+
   statusBarColorControl = false;
 
   statusBarColors: IModeSpecificStrings<string | string[]> = {

src/configuration/iconfiguration.ts

@@ -243,6 +243,12 @@ export interface IConfiguration {
    */
   startInInsertMode: boolean;
 
+  /**
+   * List of document URI schemes that should automatically start in Insert mode.
+   * For example, ['comment'] for GitHub PR comment editors.
+   */
+  startInInsertModeSchemes: string[];
+
   /**
    * Enable changing of the status bar color based on mode
    */

src/mode/modeHandler.ts

@@ -106,7 +106,13 @@ export class ModeHandler implements vscode.Disposable, IModeHandler {
   ): Promise<ModeHandler> {
     const modeHandler = new ModeHandler(handlerMap, textEditor);
     await modeHandler.vimState.load();
-    await modeHandler.setCurrentMode(configuration.startInInsertMode ? Mode.Insert : Mode.Normal);
+
+    // Check if this editor's URI scheme should start in Insert mode
+    const scheme = textEditor.document.uri.scheme;
+    const shouldStartInsert =
+      configuration.startInInsertMode || configuration.startInInsertModeSchemes.includes(scheme);
+
+    await modeHandler.setCurrentMode(shouldStartInsert ? Mode.Insert : Mode.Normal);
     modeHandler.syncCursors();
     return modeHandler;
   }

test/testConfiguration.ts

@@ -74,6 +74,7 @@ export class Configuration implements IConfiguration {
   incsearch = true;
   inccommand = '' as const;
   startInInsertMode = false;
+  startInInsertModeSchemes = ['comment'];
   statusBarColorControl = false;
   statusBarColors: IModeSpecificStrings<string | string[]> = {
     normal: ['#8FBCBB', '#434C5E'],