From bfcd8dc1fbccbed2a0a3a97ef89bf8d6e8b51c35 Mon Sep 17 00:00:00 2001
From: Petr Mironychev <9195189+Palm1r@users.noreply.github.com>
Date: Thu, 28 May 2026 16:00:18 +0200
Subject: [PATCH] fix: Prevent crash on cancelling quick refactor via progress
 widget

---
 QuickRefactorHandler.cpp   | 32 ++++++++++++++++----------------
 widgets/ProgressWidget.cpp |  8 +++++---
 2 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/QuickRefactorHandler.cpp b/QuickRefactorHandler.cpp
index aacd78c..fe70e45 100644
--- a/QuickRefactorHandler.cpp
+++ b/QuickRefactorHandler.cpp
@@ -385,25 +385,25 @@ void QuickRefactorHandler::handleLLMResponse(
 
 void QuickRefactorHandler::cancelRequest()
 {
-    if (m_isRefactoringInProgress) {
-        auto id = m_lastRequestId;
+    if (!m_isRefactoringInProgress)
+        return;
 
-        for (auto it = m_activeRequests.begin(); it != m_activeRequests.end(); ++it) {
-            if (it.key() == id) {
-                const RequestContext &ctx = it.value();
-                ctx.provider->cancelRequest(id);
-                m_activeRequests.erase(it);
-                break;
-            }
-        }
+    const auto id = m_lastRequestId;
+    m_isRefactoringInProgress = false;
+    m_lastRequestId = {};
 
-        m_isRefactoringInProgress = false;
-
-        RefactorResult result;
-        result.success = false;
-        result.errorMessage = "Refactoring request was cancelled";
-        emit refactoringCompleted(result);
+    auto it = m_activeRequests.find(id);
+    if (it != m_activeRequests.end()) {
+        auto provider = it.value().provider;
+        m_activeRequests.erase(it);
+        if (provider)
+            provider->cancelRequest(id);
     }
+
+    RefactorResult result;
+    result.success = false;
+    result.errorMessage = "Refactoring request was cancelled";
+    emit refactoringCompleted(result);
 }
 
 void QuickRefactorHandler::handleFullResponse(const QString &requestId, const QString &fullText)
diff --git a/widgets/ProgressWidget.cpp b/widgets/ProgressWidget.cpp
index 33dc394..f12c6e2 100644
--- a/widgets/ProgressWidget.cpp
+++ b/widgets/ProgressWidget.cpp
@@ -142,10 +142,12 @@ void ProgressWidget::leaveEvent(QEvent *event)
 void ProgressWidget::mousePressEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::LeftButton && m_isHovered) {
+        event->accept();
+        auto callback = m_cancelCallback;
         emit cancelRequested();
-        if (m_cancelCallback) {
-            m_cancelCallback();
-        }
+        if (callback)
+            callback();
+        return;
     }
     QWidget::mousePressEvent(event);
 }