fix(patch): cherry-pick 030a5ac to release/v0.18.3-pr-13565 [CONFLICTS] (#13869)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/cli/src/gemini.tsx

@@ -33,13 +33,11 @@ import {
   runExitCleanup,
 } from './utils/cleanup.js';
 import { getCliVersion } from './utils/version.js';
-import type {
-  Config,
-  ResumedSessionData,
-  OutputPayload,
-  ConsoleLogPayload,
-} from '@google/gemini-cli-core';
 import {
+  type Config,
+  type ResumedSessionData,
+  type OutputPayload,
+  type ConsoleLogPayload,
   sessionId,
   logUserPrompt,
   AuthType,
@@ -49,6 +47,15 @@ import {
   recordSlowRender,
   coreEvents,
   CoreEvent,
+  createInkStdio,
+  patchStdio,
+  writeToStdout,
+  writeToStderr,
+  disableMouseEvents,
+  enableMouseEvents,
+  enterAlternateScreen,
+  disableLineWrapping,
+  shouldEnterAlternateScreen,
 } from '@google/gemini-cli-core';
 import {
   initializeApp,
@@ -81,16 +88,8 @@ import { deleteSession, listSessions } from './utils/sessions.js';
 import { ExtensionManager } from './config/extension-manager.js';
 import { createPolicyUpdater } from './config/policy.js';
 import { requestConsentNonInteractive } from './config/extensions/consent.js';
-import { disableMouseEvents, enableMouseEvents } from './ui/utils/mouse.js';
 import { ScrollProvider } from './ui/contexts/ScrollProvider.js';
-import ansiEscapes from 'ansi-escapes';
 import { isAlternateBufferEnabled } from './ui/hooks/useAlternateBuffer.js';
-import {
-  createInkStdio,
-  patchStdio,
-  writeToStderr,
-  writeToStdout,
-} from './utils/stdio.js';
 
 import { profiler } from './ui/components/DebugProfiler.js';
 
@@ -178,8 +177,10 @@ export async function startInteractiveUI(
   // as there is no benefit of alternate buffer mode when using a screen reader
   // and the Ink alternate buffer mode requires line wrapping harmful to
   // screen readers.
-  const useAlternateBuffer =
-    isAlternateBufferEnabled(settings) && !config.getScreenReader();
+  const useAlternateBuffer = shouldEnterAlternateScreen(
+    isAlternateBufferEnabled(settings),
+    config.getScreenReader(),
+  );
   const mouseEventsEnabled = useAlternateBuffer;
   if (mouseEventsEnabled) {
     enableMouseEvents();
@@ -483,8 +484,14 @@ export async function main() {
       // input showing up in the output.
       process.stdin.setRawMode(true);
 
-      if (isAlternateBufferEnabled(settings)) {
-        writeToStdout(ansiEscapes.enterAlternativeScreen);
+      if (
+        shouldEnterAlternateScreen(
+          isAlternateBufferEnabled(settings),
+          config.getScreenReader(),
+        )
+      ) {
+        enterAlternateScreen();
+        disableLineWrapping();
 
         // Ink will cleanup so there is no need for us to manually cleanup.
       }