1 files changed, 35 insertions, 19 deletions

diff --git a/indra/newview/llpanelimcontrolpanel.cpp b/indra/newview/llpanelimcontrolpanel.cpp
index a334eb9d68..ff1e43b526 100644
--- a/indra/newview/llpanelimcontrolpanel.cpp
+++ b/indra/newview/llpanelimcontrolpanel.cpp
@@ -64,21 +64,52 @@ void LLPanelChatControlPanel::onOpenVoiceControlsClicked()
 	LLFloaterReg::showInstance("voice_controls");
 }
 
+void LLPanelChatControlPanel::onChange(EStatusType status, const std::string &channelURI, bool proximal)
+{
+	if(status == STATUS_JOINING || status == STATUS_LEFT_CHANNEL)
+	{
+		return;
+	}
+
+	updateCallButton();
+}
+
 void LLPanelChatControlPanel::onVoiceChannelStateChanged(const LLVoiceChannel::EState& old_state, const LLVoiceChannel::EState& new_state)
 {
 	updateButtons(new_state >= LLVoiceChannel::STATE_CALL_STARTED);
 }
 
+void LLPanelChatControlPanel::updateCallButton()
+{
+	// hide/show call button
+	bool voice_enabled = LLVoiceClient::voiceEnabled() && gVoiceClient->voiceWorking();
+
+	LLIMModel::LLIMSession* session = LLIMModel::getInstance()->findIMSession(mSessionId);
+	if (!session) return;
+
+	bool session_initialized = session->mSessionInitialized;
+	bool callback_enabled = session->mCallBackEnabled;
+
+	BOOL enable_connect = session_initialized
+		&& voice_enabled
+		&& callback_enabled;
+	childSetEnabled("call_btn", enable_connect);
+}
+
 void LLPanelChatControlPanel::updateButtons(bool is_call_started)
 {
 	childSetVisible("end_call_btn_panel", is_call_started);
 	childSetVisible("voice_ctrls_btn_panel", is_call_started);
 	childSetVisible("call_btn_panel", ! is_call_started);
+	updateCallButton();
+	
 }
 
 LLPanelChatControlPanel::~LLPanelChatControlPanel()
 {
 	mVoiceChannelStateChangeConnection.disconnect();
+	if(LLVoiceClient::getInstance())
+		LLVoiceClient::getInstance()->removeObserver(this);
 }
 
 BOOL LLPanelChatControlPanel::postBuild()
@@ -87,26 +118,9 @@ BOOL LLPanelChatControlPanel::postBuild()
 	childSetAction("end_call_btn", boost::bind(&LLPanelChatControlPanel::onEndCallButtonClicked, this));
 	childSetAction("voice_ctrls_btn", boost::bind(&LLPanelChatControlPanel::onOpenVoiceControlsClicked, this));
 
-	return TRUE;
-}
-
-void LLPanelChatControlPanel::draw()
-{
-	// hide/show start call and end call buttons
-	bool voice_enabled = LLVoiceClient::voiceEnabled();
-
-	LLIMModel::LLIMSession* session = LLIMModel::getInstance()->findIMSession(mSessionId);
-	if (!session) return;
+	gVoiceClient->addObserver(this);
 
-	bool session_initialized = session->mSessionInitialized;
-	bool callback_enabled = session->mCallBackEnabled;
-
-	BOOL enable_connect = session_initialized
-		&& voice_enabled
-		&& callback_enabled;
-	childSetEnabled("call_btn", enable_connect);
-
-	LLPanel::draw();
+	return TRUE;
 }
 
 void LLPanelChatControlPanel::setSessionId(const LLUUID& session_id)
@@ -266,6 +280,8 @@ void LLPanelGroupControlPanel::draw()
 	// Need to resort the participant list if it's in sort by recent speaker order.
 	if (mParticipantList)
 		mParticipantList->updateRecentSpeakersOrder();
+	//* TODO: find better way to properly enable call button for group and remove this call from draw()
+	updateCallButton();
 	LLPanelChatControlPanel::draw();
 }