Add export my data button in Settings.

Telegram/Resources/langs/lang.strings

@@ -469,6 +469,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_calls_privacy" = "Phone calls privacy";
 "lng_settings_groups_invite_privacy" = "Group invite settings";
 "lng_settings_show_sessions" = "Show all sessions";
+"lng_settings_export_data" = "Export all my data";
 "lng_settings_self_destruct" = "Account self-destruct settings";
 "lng_settings_change_phone" = "Change phone number";
 

Telegram/SourceFiles/settings/settings_privacy_widget.cpp

@@ -12,6 +12,8 @@ For license and copyright information please follow this link:
 #include "styles/style_settings.h"
 #include "lang/lang_keys.h"
 #include "application.h"
+#include "auth_session.h"
+#include "data/data_session.h"
 #include "platform/platform_specific.h"
 #include "base/openssl_help.h"
 #include "boxes/sessions_box.h"
@@ -234,8 +236,9 @@ void PrivacyWidget::createControls() {
 		_autoLock->hide(anim::type::instant);
 	}
 	createChildRow(_cloudPasswordState, marginSmall);
-	createChildRow(_showAllSessions, marginSmall, lang(lng_settings_show_sessions), SLOT(onShowSessions()));
 	createChildRow(_selfDestruction, marginSmall, lang(lng_settings_self_destruct), SLOT(onSelfDestruction()));
+	createChildRow(_showAllSessions, marginSmall, lang(lng_settings_show_sessions), SLOT(onShowSessions()));
+	createChildRow(_exportData, marginSmall, lang(lng_settings_export_data), SLOT(onExportData()));
 }
 
 void PrivacyWidget::autoLockUpdated() {
@@ -280,4 +283,12 @@ void PrivacyWidget::onSelfDestruction() {
 	Ui::show(Box<SelfDestructionBox>());
 }
 
+void PrivacyWidget::onExportData() {
+	Ui::hideSettingsAndLayer();
+	App::CallDelayed(
+		st::boxDuration,
+		&Auth(),
+		[] { Auth().data().startExport(); });
+}
+
 } // namespace Settings

Telegram/SourceFiles/settings/settings_privacy_widget.h

@@ -87,6 +87,7 @@ private slots:
 	void onAutoLock();
 	void onShowSessions();
 	void onSelfDestruction();
+	void onExportData();
 
 private:
 	static QString GetAutoLockText();
@@ -103,6 +104,7 @@ private slots:
 	CloudPasswordState *_cloudPasswordState = nullptr;
 	Ui::LinkButton *_showAllSessions = nullptr;
 	Ui::LinkButton *_selfDestruction = nullptr;
+	Ui::LinkButton *_exportData = nullptr;
 
 };