feat(ux): unify Ask-Claude-to-Edit on a split-below multi-line webview (#65)

src/extension.ts

@@ -12,7 +12,6 @@ import { SidecarRouter } from "./sidecarRouter";
 import { DiffViewController } from "./diffViewController";
 import { TrackChangesPreviewController } from "./trackChangesPreview";
 import { LiveProgressUi } from "./liveProgressUi";
-import { InlineAskController } from "./inlineAsk";
 import { isAuthorable, routeEdit, selectionRejection } from "./workspacePath";
 
 const CHANNEL_NAME = "Cowriting (Cline SDK)";
@@ -26,7 +25,6 @@ export interface CowritingApi {
   trackChangesPreviewController: TrackChangesPreviewController;
   sidecarRouter: SidecarRouter;
   liveProgressUi: LiveProgressUi;
-  inlineAsk: InlineAskController;
 }
 
 export function activate(context: vscode.ExtensionContext): CowritingApi | undefined {
@@ -38,11 +36,6 @@ export function activate(context: vscode.ExtensionContext): CowritingApi | undef
   // OutputChannel) for both Ask-Claude entry points.
   const liveProgressUi = new LiveProgressUi();
   context.subscriptions.push(liveProgressUi);
-
-  // The inline "Ask Claude to Edit" prompt — rendered at the selection/cursor via
-  // the Comments API rather than the top-center QuickInput (see inlineAsk.ts).
-  // Shared by both Ask-Claude entry points (editSelection + the preview's askClaude).
-  const inlineAsk = new InlineAskController(context.subscriptions);
   context.subscriptions.push(
     vscode.commands.registerCommand("cowriting.showClineSdkInfo", async () => {
       try {
@@ -119,7 +112,6 @@ export function activate(context: vscode.ExtensionContext): CowritingApi | undef
     attributionController,
     proposalController,
     liveProgressUi,
-    inlineAsk,
   );
   context.subscriptions.push(trackChangesPreviewController);
 
@@ -227,17 +219,23 @@ export function activate(context: vscode.ExtensionContext): CowritingApi | undef
       if (!editor) return; // unreachable once reason is null, but narrows the type
       const document = editor.document;
       const selection = editor.selection; // non-empty (selectionRejection guaranteed it)
-      // The instruction prompt opens INLINE at the selection (inlineAsk), not the
-      // top-center QuickInput — anchored to the text Claude will edit.
-      const instruction = await inlineAsk.prompt(document.uri, selection);
-      if (!instruction) return;
+      // Capture the selection text + anchor BEFORE prompting — the inline prompt
+      // moves the cursor to the document top (where its box anchors), which would
+      // otherwise collapse the selection we act on (spec §6.5 PUC-1: anchor
+      // captured pre-turn so mid-turn edits can't skew it).
       const selectedText = document.getText(selection);
-      // Capture the anchor BEFORE the turn (spec §6.5 PUC-1): mid-turn edits
-      // can't skew it — the proposal renders wherever the target re-resolves.
       const fp = buildFingerprint(document.getText(), {
         start: document.offsetAt(selection.start),
         end: document.offsetAt(selection.end),
       });
+      // The instruction prompt is the multi-line split-below webview box (shared
+      // with the document case, via the preview controller); the document above
+      // keeps the selection highlighted while it's open. selectedText/fp were
+      // captured above, so moving focus to the box doesn't affect what we edit.
+      const instruction = await trackChangesPreviewController.askEditInstruction(
+        "Ask Claude to Edit This Selection",
+      );
+      if (!instruction) return;
       const turnId = `turn-${Date.now().toString(36)}`;
       try {
         await vscode.window.withProgress(
@@ -344,7 +342,6 @@ export function activate(context: vscode.ExtensionContext): CowritingApi | undef
     trackChangesPreviewController,
     sidecarRouter,
     liveProgressUi,
-    inlineAsk,
   };
 }