Added ability to update pinned dialogs.

Telegram/SourceFiles/data/data_session.cpp

@@ -1414,6 +1414,7 @@ void Session::setChatPinned(const Dialogs::Key &key, bool pinned) {
 
 	const auto list = chatsList(key.entry()->folder())->pinned();
 	list->setPinned(key, pinned);
+	notifyPinnedDialogsOrderUpdated();
 }
 
 void Session::setPinnedFromDialog(const Dialogs::Key &key, bool pinned) {
@@ -1430,7 +1431,6 @@ void Session::setPinnedFromDialog(const Dialogs::Key &key, bool pinned) {
 void Session::applyPinnedChats(
 		Data::Folder *folder,
 		const QVector<MTPDialogPeer> &list) {
-	notifyPinnedDialogsOrderUpdated();
 	for (const auto &peer : list) {
 		peer.match([&](const MTPDdialogPeer &data) {
 			const auto history = this->history(peerFromMTP(data.vpeer));
@@ -1446,6 +1446,7 @@ void Session::applyPinnedChats(
 		});
 	}
 	chatsList(folder)->pinned()->applyList(this, list);
+	notifyPinnedDialogsOrderUpdated();
 }
 
 void Session::applyDialogs(
@@ -1490,7 +1491,6 @@ void Session::applyDialog(
 void Session::applyDialog(
 		Data::Folder *requestFolder,
 		const MTPDdialogFolder &data) {
-	notifyPinnedDialogsOrderUpdated();
 	if (requestFolder) {
 		LOG(("API Error: requestFolder != nullptr for dialogFolder."));
 	}
@@ -1525,6 +1525,7 @@ void Session::reorderTwoPinnedChats(
 	Expects(key1.entry()->folder() == key2.entry()->folder());
 
 	chatsList(key1.entry()->folder())->pinned()->reorder(key1, key2);
+	notifyPinnedDialogsOrderUpdated();
 }
 
 bool Session::checkEntitiesAndViewsUpdate(const MTPDmessage &data) {

Telegram/SourceFiles/platform/mac/main_window_mac.mm

@@ -399,12 +399,15 @@ MainWindow::MainWindow()
 	subscribe(Core::App().authSessionChanged(), [this] {
 		if (AuthSession::Exists()) {
 			
-			Auth().data().pinnedDialogsOrderUpdated(
-			) | rpl::start_with_next([this] {
-				if (auto view = reinterpret_cast<NSView*>(winId())) {
-					// Create TouchBar.
-					[NSApplication sharedApplication].automaticCustomizeTouchBarMenuItemEnabled = YES;
-					_private->_touchBar = [[TouchBar alloc] init:view];
+			Auth().data().chatsListChanges(
+			) | rpl::start_with_next([this](Data::Folder* folder) {
+				// We need only common pinned dialogs.
+				if (!folder && !_private->_touchBar) {
+					if (auto view = reinterpret_cast<NSView*>(winId())) {
+						// Create TouchBar.
+						[NSApplication sharedApplication].automaticCustomizeTouchBarMenuItemEnabled = YES;
+						_private->_touchBar = [[TouchBar alloc] init:view];
+					}
 				}
 			}, lifetime());
 		}

Telegram/SourceFiles/platform/mac/touchbar.mm

@@ -66,6 +66,7 @@ NSImage *qt_mac_create_nsimage(const QPixmap &pm);
 - (NSImage *) getPinImage;
 - (void)buttonActionPin:(NSButton *)sender;
 - (void)updatePeerData;
+- (void)updatePinnedDialog;
 
 @end // @interface PinnedDialogButton
 
@@ -100,12 +101,19 @@ auto lifetime = rpl::lifetime();
 		button.image = [self getPinImage];
 	};
 	
-	Notify::PeerUpdateViewer(
-		self.peer,
-		Notify::PeerUpdate::Flag::PhotoChanged
+	if (self.peer) {
+		Notify::PeerUpdateViewer(
+			self.peer,
+			Notify::PeerUpdate::Flag::PhotoChanged
+		) | rpl::start_with_next([=] {
+			self.waiting = true;
+			updateImage();
+		}, lifetime);
+	}
+	
+	Auth().data().pinnedDialogsOrderUpdated(
 	) | rpl::start_with_next([=] {
-		self.waiting = true;
-		updateImage();
+		[self updatePinnedDialog];
 	}, lifetime);
 	
 	base::ObservableViewer(
@@ -119,6 +127,13 @@ auto lifetime = rpl::lifetime();
 	return self;
 }
 
+- (void) updatePinnedDialog {
+	[self updatePeerData];
+	NSButton *button = self.view;
+	button.image = [self getPinImage];
+	[button setHidden:(self.number > Auth().data().pinnedChatsOrder(nullptr).size())];
+}
+
 - (id) initSavedMessages {
 	self = [super initWithIdentifier:savedMessages];
 	if (!self) {
@@ -193,7 +208,8 @@ auto lifetime = rpl::lifetime();
 		return static_cast<NSImage*>(qt_mac_create_nsimage(*pix));
 	}
 	if (!self.peer) {
-		return nil;
+		// Random picture.
+		return [NSImage imageNamed:NSImageNameTouchBarAddTemplate];
 	}
 	self.waiting = !self.peer->userpicLoaded();
 	auto pixmap = self.peer->genUserpic(kIdealIconSize);

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -157,7 +157,9 @@ void TogglePinnedDialog(Dialogs::Key key) {
 		history->session().api().request(MTPmessages_ToggleDialogPin(
 			MTP_flags(flags),
 			MTP_inputDialogPeer(key.history()->peer->input)
-		)).send();
+		)).done([=](const MTPBool &result) {
+			Auth().data().notifyPinnedDialogsOrderUpdated();
+		}).send();
 	} else if (const auto folder = key.folder()) {
 		folder->session().api().request(MTPmessages_ToggleDialogPin(
 			MTP_flags(flags),