Pass Main::Session to click handler creators.

Telegram/SourceFiles/core/click_handler_types.cpp

@@ -120,7 +120,7 @@ auto MentionClickHandler::getTextEntity() const -> TextEntity {
 void MentionNameClickHandler::onClick(ClickContext context) const {
 	const auto button = context.button;
 	if (button == Qt::LeftButton || button == Qt::MiddleButton) {
-		if (auto user = Auth().data().userLoaded(_userId)) {
+		if (auto user = _session->data().userLoaded(_userId)) {
 			Ui::showPeerProfile(user);
 		}
 	}
@@ -132,7 +132,7 @@ auto MentionNameClickHandler::getTextEntity() const -> TextEntity {
 }
 
 QString MentionNameClickHandler::tooltip() const {
-	if (const auto user = Auth().data().userLoaded(_userId)) {
+	if (const auto user = _session->data().userLoaded(_userId)) {
 		const auto name = user->name;
 		if (name != _text) {
 			return name;

Telegram/SourceFiles/core/click_handler_types.h

@@ -9,6 +9,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "ui/basic_click_handlers.h"
 
+namespace Main {
+class Session;
+} // namespace Main
+
 class HiddenUrlClickHandler : public UrlClickHandler {
 public:
 	HiddenUrlClickHandler(QString url) : UrlClickHandler(url, false) {
@@ -72,8 +76,13 @@ private:
 
 class MentionNameClickHandler : public ClickHandler {
 public:
-	MentionNameClickHandler(QString text, UserId userId, uint64 accessHash)
-	: _text(text)
+	MentionNameClickHandler(
+		not_null<Main::Session*> session,
+		QString text,
+		UserId userId,
+		uint64 accessHash)
+	: _session(session)
+	, _text(text)
 	, _userId(userId)
 	, _accessHash(accessHash) {
 	}
@@ -85,6 +94,7 @@ public:
 	QString tooltip() const override;
 
 private:
+	const not_null<Main::Session*> _session;
 	QString _text;
 	UserId _userId;
 	uint64 _accessHash;

Telegram/SourceFiles/core/ui_integration.cpp

@@ -112,8 +112,11 @@ std::shared_ptr<ClickHandler> UiIntegration::createLinkHandler(
 
 	case EntityType::MentionName: {
 		auto fields = TextUtilities::MentionNameDataToFields(data.data);
-		if (fields.userId) {
+		if (!my || !my->session) {
+			LOG(("Mention name without a session: %1").arg(data.data));
+		} else if (fields.userId) {
 			return std::make_shared<MentionNameClickHandler>(
+				my->session,
 				data.text,
 				fields.userId,
 				fields.accessHash);

Telegram/SourceFiles/core/ui_integration.h

@@ -9,6 +9,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "ui/integration.h"
 
+namespace Main {
+class Session;
+} // namespace Main
+
 namespace Core {
 
 class UiIntegration : public Ui::Integration {
@@ -19,6 +23,7 @@ public:
 		Instagram,
 	};
 	struct Context {
+		Main::Session *session = nullptr;
 		HashtagMentionType type = HashtagMentionType::Telegram;
 	};