From 529c12ea3a2a4bdb9e0fe45e56f26162ebc7cc33 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Tue, 8 Dec 2020 16:03:59 +0400
Subject: [PATCH] Hide call panel when starting hanging up.

---
 Telegram/SourceFiles/calls/calls_group_panel.cpp | 10 ++++++++++
 Telegram/SourceFiles/calls/calls_instance.cpp    | 12 +++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/calls/calls_group_panel.cpp b/Telegram/SourceFiles/calls/calls_group_panel.cpp
index 80339859d5..0c7c785402 100644
--- a/Telegram/SourceFiles/calls/calls_group_panel.cpp
+++ b/Telegram/SourceFiles/calls/calls_group_panel.cpp
@@ -353,6 +353,16 @@ void GroupPanel::initWithCall(GroupCall *call) {
 
 	_channel = _call->channel();
 
+	call->stateValue(
+	) | rpl::filter([](State state) {
+		return (state == State::HangingUp)
+			|| (state == State::Ended)
+			|| (state == State::FailedHangingUp)
+			|| (state == State::Failed);
+	}) | rpl::start_with_next([=] {
+		closeBeforeDestroy();
+	}, _callLifetime);
+
 	call->levelUpdates(
 	) | rpl::filter([=](const LevelUpdate &update) {
 		return update.self;
diff --git a/Telegram/SourceFiles/calls/calls_instance.cpp b/Telegram/SourceFiles/calls/calls_instance.cpp
index 38e3fb256e..f1c4058107 100644
--- a/Telegram/SourceFiles/calls/calls_instance.cpp
+++ b/Telegram/SourceFiles/calls/calls_instance.cpp
@@ -196,6 +196,9 @@ void Instance::destroyGroupCall(not_null<GroupCall*> call) {
 void Instance::createGroupCall(
 		not_null<ChannelData*> channel,
 		const MTPInputGroupCall &inputCall) {
+	if (_currentGroupCall) {
+		destroyGroupCall(_currentGroupCall.get());
+	}
 	auto call = std::make_unique<GroupCall>(
 		getGroupCallDelegate(),
 		channel,
@@ -433,7 +436,14 @@ bool Instance::inCall() const {
 }
 
 bool Instance::inGroupCall() const {
-	return (_currentGroupCall != nullptr);
+	if (!_currentGroupCall) {
+		return false;
+	}
+	const auto state = _currentGroupCall->state();
+	return (state != GroupCall::State::HangingUp)
+		&& (state != GroupCall::State::Ended)
+		&& (state != GroupCall::State::FailedHangingUp)
+		&& (state != GroupCall::State::Failed);
 }
 
 bool Instance::activateCurrentCall() {