From 20e303d3e65328450ccfbdaf5a2208c03b4a7711 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 28 Sep 2018 14:56:21 +0300
Subject: [PATCH] Read chats only on sending (support).

---
 Telegram/SourceFiles/auth_session.cpp           |  5 +++++
 Telegram/SourceFiles/auth_session.h             |  2 ++
 Telegram/SourceFiles/history/history_widget.cpp |  4 +++-
 Telegram/SourceFiles/mainwidget.cpp             |  5 ++++-
 Telegram/SourceFiles/mainwindow.cpp             | 10 +++++++---
 5 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/Telegram/SourceFiles/auth_session.cpp b/Telegram/SourceFiles/auth_session.cpp
index bce05b7d2..52dad65d5 100644
--- a/Telegram/SourceFiles/auth_session.cpp
+++ b/Telegram/SourceFiles/auth_session.cpp
@@ -391,4 +391,9 @@ void AuthSession::checkAutoLockIn(TimeMs time) {
 	_autoLockTimer.callOnce(time);
 }
 
+bool AuthSession::supportMode() const {
+//	return true; AssertIsDebug();
+	return false;
+}
+
 AuthSession::~AuthSession() = default;
diff --git a/Telegram/SourceFiles/auth_session.h b/Telegram/SourceFiles/auth_session.h
index 90e0e6db3..b0e0caeed 100644
--- a/Telegram/SourceFiles/auth_session.h
+++ b/Telegram/SourceFiles/auth_session.h
@@ -262,6 +262,8 @@ public:
 	base::Observable<DocumentData*> documentUpdated;
 	base::Observable<std::pair<not_null<HistoryItem*>, MsgId>> messageIdChanging;
 
+	bool supportMode() const;
+
 	~AuthSession();
 
 private:
diff --git a/Telegram/SourceFiles/history/history_widget.cpp b/Telegram/SourceFiles/history/history_widget.cpp
index 9d456e965..e0eba948f 100644
--- a/Telegram/SourceFiles/history/history_widget.cpp
+++ b/Telegram/SourceFiles/history/history_widget.cpp
@@ -2898,7 +2898,9 @@ void HistoryWidget::historyDownClicked() {
 	} else if (_replyReturn && _replyReturn->history() == _migrated) {
 		showHistory(_peer->id, -_replyReturn->id);
 	} else if (_peer) {
-		showHistory(_peer->id, ShowAtUnreadMsgId);
+		showHistory(
+			_peer->id,
+			Auth().supportMode() ? ShowAtTheEndMsgId : ShowAtUnreadMsgId);
 	}
 }
 
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 3d48ba73d..1839faa74 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -4002,7 +4002,10 @@ bool MainWidget::isActive() const {
 }
 
 bool MainWidget::doWeReadServerHistory() const {
-	return isActive() && !_mainSection && _history->doWeReadServerHistory();
+	return isActive()
+		&& !Auth().supportMode()
+		&& !_mainSection
+		&& _history->doWeReadServerHistory();
 }
 
 bool MainWidget::doWeReadMentions() const {
diff --git a/Telegram/SourceFiles/mainwindow.cpp b/Telegram/SourceFiles/mainwindow.cpp
index 24ee85f13..5e172ed95 100644
--- a/Telegram/SourceFiles/mainwindow.cpp
+++ b/Telegram/SourceFiles/mainwindow.cpp
@@ -416,16 +416,20 @@ void MainWindow::themeUpdated(const Window::Theme::BackgroundUpdate &data) {
 
 bool MainWindow::doWeReadServerHistory() {
 	updateIsActive(0);
-	return isActive() && _main && !Ui::isLayerShown() && _main->doWeReadServerHistory();
+	return isActive()
+		&& !Ui::isLayerShown()
+		&& (_main ? _main->doWeReadServerHistory() : false);
 }
 
 bool MainWindow::doWeReadMentions() {
 	updateIsActive(0);
-	return isActive() && _main && !Ui::isLayerShown() && _main->doWeReadMentions();
+	return isActive()
+		&& !Ui::isLayerShown()
+		&& (_main ? _main->doWeReadMentions() : false);
 }
 
 void MainWindow::checkHistoryActivation() {
-	if (_main && doWeReadServerHistory()) {
+	if (doWeReadServerHistory()) {
 		_main->markActiveHistoryAsRead();
 	}
 }