Expose explicit desktop radio activation for accepted invitations

tools/chatgui/src/messagelist.cpp

@@ -1599,6 +1599,15 @@ void MessageList::onStreamSources(const uint8_t* data, int len) {
     DEBUG_INFO(DEBUG_CATEGORY_STREAM, "desktop stream header group=%llx sources=%d", (unsigned long long)group, (int)m_streamSources.size());
 }
 
+bool MessageList::enableRadio() {
+    if (m_currentChannelId.isEmpty() || isDmChannel(m_currentChannelId)) return false;
+    if (!m_radioOn) onRadioToggled(true);
+    QSignalBlocker blocker(m_radioBtn);
+    m_radioBtn->setChecked(m_radioOn);
+    return m_radioOn && RadioAudioEngine::instance()->isActive()
+        && RadioAudioEngine::instance()->groupId() == m_currentChannelId.toULongLong();
+}
+
 void MessageList::onRadioToggled(bool on) {
     if (m_currentChannelId.isEmpty() || isDmChannel(m_currentChannelId)) return;
 

tools/chatgui/src/messagelist.h

@@ -48,6 +48,7 @@ public:
     void onMessageSubmitted(const uint8_t* data, int len);
     void onAttachmentKeysChanged(const uint8_t* data, int len);
     void onRadioTalk(quint64 groupId, quint64 srcNodeId, bool on);   /* индикация говорящего */
+    bool enableRadio(); /* идемпотентное включение рации выбранного канала, false при ошибке аудио */
     void onStreamSources(const uint8_t* data, int len);
     void clearStreams();
     void watchStreams();