From 40e9d74674ebcffd1e7a1ecf89825c21045c43fc Mon Sep 17 00:00:00 2001
From: Oleg Samarin <osamarin@openintegration.inc>
Date: Tue, 14 Apr 2026 11:22:48 +0300
Subject: [PATCH] Fixed Cancel button sending Ctrl+C instead of Esc

cancelPrompt() now sends ESC (0x1B) instead of Ctrl+C (0x03),
which allows dismissing full-screen views like /usage without
killing the Claude process entirely.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 CHANGELOG.md                                                  | 1 +
 docs/to-do.md                                                 | 3 ++-
 pom.xml                                                       | 2 +-
 .../nbclaudecodegui/controller/ClaudeSessionController.java   | 4 ++--
 4 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74379d5d..645a57b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,4 @@
+- Fixed Cancel button sending Ctrl+C instead of Esc, making it impossible to exit /usage and similar screens
 - Fixed Default profile settings not saving in Tools → Options → Profiles (https://github.com/nbclaudecodegui/NetbeansClaudeCodeGui/issues/31)
 - Fixed "Open with Claude Code" context menu not applying Default profile settings (API key, proxy, Extra CLI args, etc.) (https://github.com/nbclaudecodegui/NetbeansClaudeCodeGui/issues/23)
 - Added Advanced tab in Tools → Options → Claude Code with Debug mode, Hang timeout, and a new "Enable MCP integration" toggle (disabling it skips the --mcp-config flag while hooks remain active)
diff --git a/docs/to-do.md b/docs/to-do.md
index ba138352..04adb0d9 100644
--- a/docs/to-do.md
+++ b/docs/to-do.md
@@ -1,8 +1,9 @@
 # Bugs
 
+- [x] Невозможно выйти из /usage по кнопке cancel. Отладить
 - [ ] Улучшить определение моделей: Из списка
     ```
-    ❯ /model                                                                                                                                                                                                                                              
+    ❯ /model
 
     ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
       Select model
diff --git a/pom.xml b/pom.xml
index 91d144ab..49db55d5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>io.github.nbclaudecodegui</groupId>
     <artifactId>netbeans-claude-code-gui</artifactId>
-    <version>0.20.7-SNAPSHOT</version>
+    <version>0.20.8-SNAPSHOT</version>
     <packaging>nbm</packaging>
     <name>Netbeans Claude Code GUI</name>
     <description>NetBeans plugin that provides a GUI for Claude Code CLI — run claude code sessions directly inside the IDE.</description>
diff --git a/src/main/java/io/github/nbclaudecodegui/controller/ClaudeSessionController.java b/src/main/java/io/github/nbclaudecodegui/controller/ClaudeSessionController.java
index 5d5243e8..6cdc65e8 100644
--- a/src/main/java/io/github/nbclaudecodegui/controller/ClaudeSessionController.java
+++ b/src/main/java/io/github/nbclaudecodegui/controller/ClaudeSessionController.java
@@ -316,13 +316,13 @@ public void sendPrompt(String text) {
     }
 
     /**
-     * Sends Ctrl+C (0x03) to the PTY and transitions to READY state.
+     * Sends ESC (0x1B) to the PTY and transitions to READY state.
      * No-op if no PTY connector is active.
      */
     public void cancelPrompt() {
         if (connector == null) return;
         try {
-            sendCancelToPty(new byte[]{0x03});
+            sendCancelToPty(new byte[]{0x1b});
         } catch (IOException ex) {
             LOG.warning("cancelPrompt failed: " + ex.getMessage());
         }