Fence deferred message actions, release voice views and flush state before shutdown

tools/chatgui/src/messagedelegate.cpp

@@ -99,12 +99,13 @@ struct VoicePlayState {
     float displayElapsed = 0.0f;
 };
 static QMap<QString, VoicePlayState> s_voiceStates;
-static QTimer* s_voiceTimer = nullptr;
-static QAbstractItemView* s_voiceView = nullptr;
+static QPointer<QTimer> s_voiceTimer;
+static QPointer<QAbstractItemView> s_voiceView;
 
 static void ensureVoiceTimer() {
     if (!s_voiceTimer) {
-        s_voiceTimer = new QTimer();
+        s_voiceTimer = new QTimer(QCoreApplication::instance());
+        s_voiceTimer->setObjectName("messageVoiceTimer");
         s_voiceTimer->setInterval(16);
         QObject::connect(s_voiceTimer, &QTimer::timeout, []() {
             bool anyActive = false;
@@ -1080,7 +1081,15 @@ void MessageDelegate::paintBody(QPainter* painter, const QStyleOptionViewItem& o
     }
 
     if (L.isVoice) {
-        if (option.widget) s_voiceView = (QAbstractItemView*)option.widget;
+        auto* view = qobject_cast<QAbstractItemView*>(const_cast<QWidget*>(option.widget));
+        if (view && s_voiceView != view) {
+            s_voiceView = view;
+            QObject::connect(view, &QObject::destroyed, QCoreApplication::instance(), [] {
+                if (s_voiceView) return; // Уничтожен прежний view, текущий продолжает воспроизведение.
+                MessageDelegate::stopAllAutoPlay();
+                GUI_DEBUG("voice delegate: view destroyed, playback state released");
+            });
+        }
         drawBubble(painter, L, option);
         if (!L.narrow) drawAvatar(painter, L, index);
 
@@ -1722,7 +1731,6 @@ void MessageDelegate::startAutoPlay(const QString& filePath, float actualDuratio
 
 void MessageDelegate::stopAllAutoPlay() {
     VoicePlayer::stop();
-    for (auto it = s_voiceStates.begin(); it != s_voiceStates.end(); ++it) {
-        it->playing = false; it->paused = false; it->loading = false;
-    }
+    s_voiceStates.clear();
+    if (s_voiceTimer) s_voiceTimer->stop();
 }