Add members link in info for channel admins.

Telegram/SourceFiles/history/history_widget.cpp

@@ -696,7 +696,8 @@ HistoryWidget::HistoryWidget(QWidget *parent, not_null<Window::Controller*> cont
 		| UpdateFlag::UserIsBlocked
 		| UpdateFlag::AdminsChanged
 		| UpdateFlag::MembersChanged
-		| UpdateFlag::UserOnlineChanged;
+		| UpdateFlag::UserOnlineChanged
+		| UpdateFlag::ChannelAmIn;
 	subscribe(Notify::PeerUpdated(), Notify::PeerUpdatedHandler(changes, [this](const Notify::PeerUpdate &update) {
 		if (update.peer == _peer) {
 			if (update.flags & UpdateFlag::ChannelRightsChanged) {
@@ -730,7 +731,8 @@ HistoryWidget::HistoryWidget(QWidget *parent, not_null<Window::Controller*> cont
 			if (update.flags & (UpdateFlag::UserIsBlocked
 				| UpdateFlag::AdminsChanged
 				| UpdateFlag::MembersChanged
-				| UpdateFlag::UserOnlineChanged)) {
+				| UpdateFlag::UserOnlineChanged
+				| UpdateFlag::ChannelAmIn)) {
 				handlePeerUpdate();
 			}
 		}

Telegram/SourceFiles/info/info.style

@@ -321,7 +321,7 @@ infoNotificationsIconPosition: point(20px, 5px);
 infoSharedMediaIconPosition: point(20px, 24px);
 infoSharedMediaButtonIconPosition: point(20px, 3px);
 infoIconPosition: point(20px, 15px);
-
+infoChannelMembersIconPosition: point(20px, 24px);
 infoLabeledOneLine: FlatLabel(defaultFlatLabel) {
 	maxHeight: 20px;
 	style: TextStyle(defaultTextStyle) {

Telegram/SourceFiles/info/info_wrap_widget.cpp

@@ -262,7 +262,7 @@ void WrapWidget::createTopBar() {
 	}
 	if (_controller->section().type() == Section::Type::Profile) {
 		addProfileMenuButton();
-		addProfileNotificationsButton();
+//		addProfileNotificationsButton();
 	}
 
 	_topBar->move(0, 0);

Telegram/SourceFiles/info/profile/info_profile_actions.cpp

@@ -21,6 +21,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "info/profile/info_profile_actions.h"
 
 #include <rpl/flatten_latest.h>
+#include <rpl/combine.h>
+#include "data/data_peer_values.h"
 #include "ui/wrap/vertical_layout.h"
 #include "ui/wrap/padding_wrap.h"
 #include "ui/wrap/slide_wrap.h"
@@ -42,6 +44,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "info/profile/info_profile_text.h"
 #include "window/window_controller.h"
 #include "window/window_peer_menu.h"
+#include "profile/profile_channel_controllers.h"
 #include "mainwidget.h"
 #include "auth_session.h"
 #include "messenger.h"
@@ -557,8 +560,7 @@ void ActionsFiller::addLeaveChannelAction(
 		_wrap,
 		Lang::Viewer(lng_profile_leave_channel),
 		AmInChannelValue(channel),
-		[channel] { Auth().api().leaveChannel(channel); },
-		st::infoBlockButton);
+		[channel] { Auth().api().leaveChannel(channel); });
 }
 
 void ActionsFiller::addJoinChannelAction(
@@ -608,10 +610,10 @@ void ActionsFiller::fillChannelActions(
 	using namespace rpl::mappers;
 
 	addJoinChannelAction(channel);
+	addLeaveChannelAction(channel);
 	if (!channel->amCreator()) {
 		addReportAction();
 	}
-	addLeaveChannelAction(channel);
 }
 
 object_ptr<Ui::RpWidget> ActionsFiller::fill() {
@@ -631,12 +633,13 @@ object_ptr<Ui::RpWidget> ActionsFiller::fill() {
 			fillUserActions(user);
 		});
 	} else if (auto channel = _peer->asChannel()) {
-		if (!channel->isMegagroup()) {
+		if (channel->isMegagroup()) {
+			return { nullptr };
+		}
 		return wrapResult([=] {
 			fillChannelActions(channel);
 		});
 	}
-	}
 	return { nullptr };
 }
 
@@ -658,5 +661,56 @@ object_ptr<Ui::RpWidget> SetupActions(
 	return filler.fill();
 }
 
+object_ptr<Ui::RpWidget> SetupChannelMembers(
+		not_null<Controller*> controller,
+		not_null<Ui::RpWidget*> parent,
+		not_null<PeerData*> peer) {
+	using namespace rpl::mappers;
+
+	auto channel = peer->asChannel();
+	if (!channel || channel->isMegagroup()) {
+		return { nullptr };
+	}
+
+	auto membersShown = rpl::combine(
+		MembersCountValue(channel),
+		Data::PeerFullFlagValue(
+			channel,
+			MTPDchannelFull::Flag::f_can_view_participants),
+			($1 > 0) && $2);
+	auto membersText = MembersCountValue(channel)
+		| rpl::map([](int count) {
+		return lng_chat_status_members(lt_count, count);
+	});
+	auto membersCallback = [controller, channel] {
+		using Controller = ::Profile::ParticipantsBoxController;
+		Controller::Start(
+			controller->window(),
+			channel,
+			Controller::Role::Members);
+	};
+
+	auto result = object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
+		parent,
+		object_ptr<Ui::VerticalLayout>(parent));
+	result->toggleOn(std::move(membersShown));
+
+	auto members = result->entity();
+	members->add(object_ptr<BoxContentDivider>(members));
+	members->add(CreateSkipWidget(members));
+	AddActionButton(
+		members,
+		std::move(membersText),
+		rpl::single(true),
+		std::move(membersCallback));
+	object_ptr<FloatingIcon>(
+		members,
+		st::infoIconMembers,
+		st::infoChannelMembersIconPosition);
+	members->add(CreateSkipWidget(members));
+
+	return std::move(result);
+}
+
 } // namespace Profile
 } // namespace Info

Telegram/SourceFiles/info/profile/info_profile_actions.h

@@ -40,5 +40,10 @@ object_ptr<Ui::RpWidget> SetupActions(
 	not_null<Ui::RpWidget*> parent,
 	not_null<PeerData*> peer);
 
+object_ptr<Ui::RpWidget> SetupChannelMembers(
+	not_null<Controller*> controller,
+	not_null<Ui::RpWidget*> parent,
+	not_null<PeerData*> peer);
+
 } // namespace Profile
 } // namespace Info

Telegram/SourceFiles/info/profile/info_profile_inner_widget.cpp

@@ -102,8 +102,10 @@ object_ptr<Ui::RpWidget> InnerWidget::setupContent(
 		result->add(std::move(details));
 	}
 	result->add(setupSharedMedia(result.data()));
+	if (auto members = SetupChannelMembers(_controller, result.data(), _peer)) {
+		result->add(std::move(members));
+	}
 	result->add(object_ptr<BoxContentDivider>(result));
-
 	if (auto actions = SetupActions(_controller, result.data(), _peer)) {
 		result->add(std::move(actions));
 	}

Telegram/SourceFiles/info/profile/info_profile_values.cpp

@@ -183,19 +183,11 @@ rpl::producer<int> MembersCountValue(
 					: 0;
 			});
 	} else if (auto channel = peer->asChannel()) {
-		return rpl::combine(
-			Notify::PeerUpdateValue(
+		return Notify::PeerUpdateValue(
 				channel,
-				Notify::PeerUpdate::Flag::MembersChanged),
-			Data::PeerFullFlagValue(
-				channel,
-				MTPDchannelFull::Flag::f_can_view_participants))
+				Notify::PeerUpdate::Flag::MembersChanged)
 			| rpl::map([channel] {
-				auto canViewCount = channel->canViewMembers()
-					|| !channel->isMegagroup();
-				return canViewCount
-					? qMax(channel->membersCount(), 1)
-					: 0;
+				return channel->membersCount();
 			});
 	}
 	Unexpected("User in MembersCountViewer().");

Telegram/SourceFiles/info/profile/info_profile_widget.h

@@ -63,7 +63,7 @@ public:
 	}
 
 private:
-	bool _infoExpanded = false;
+	bool _infoExpanded = true;
 	base::optional<QString> _membersSearch;
 	std::unique_ptr<PeerListState> _membersState;