Added support of setting up of login email from intro.

Telegram/CMakeLists.txt

@@ -1123,6 +1123,8 @@ PRIVATE
     inline_bots/inline_results_widget.h
     intro/intro_code.cpp
     intro/intro_code.h
+    intro/intro_email.cpp
+    intro/intro_email.h
     intro/intro_password_check.cpp
     intro/intro_password_check.h
     intro/intro_phone.cpp

Telegram/Resources/langs/lang.strings

@@ -377,6 +377,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_intro_fragment_about" = "Get the code for {phone_number} in the Anonymous Numbers section on Fragment.";
 "lng_intro_fragment_button" = "Open Fragment";
 
+"lng_intro_email_setup_title" = "Choose a login email";
+"lng_intro_email_confirm_subtitle" = "Please check your email {email} (don't forget the spam folder) and enter the code we just sent you.";
+
 "lng_phone_title" = "Your Phone Number";
 "lng_phone_desc" = "Please confirm your country code\nand enter your phone number.";
 "lng_phone_to_qr" = "Quick log in using QR code";

Telegram/SourceFiles/intro/intro_code.cpp

@@ -84,16 +84,19 @@ void CodeWidget::updateDescText() {
 	const auto byTelegram = getData()->codeByTelegram;
 	const auto isFragment = !getData()->codeByFragmentUrl.isEmpty();
 	_isFragment = isFragment;
-	setDescriptionText(
-		isFragment
-			? tr::lng_intro_fragment_about(
-				lt_phone_number,
-				rpl::single(TextWithEntities{
-					.text = Ui::FormatPhone(getData()->phone)
-				}),
-				Ui::Text::RichLangValue)
-			: (byTelegram ? tr::lng_code_from_telegram : tr::lng_code_desc)(
-				Ui::Text::RichLangValue));
+	setDescriptionText(isEmailVerification()
+		? tr::lng_intro_email_confirm_subtitle(
+			lt_email,
+			rpl::single(Ui::Text::WrapEmailPattern(getData()->emailPattern)),
+			Ui::Text::WithEntities)
+		: isFragment
+		? tr::lng_intro_fragment_about(
+			lt_phone_number,
+			rpl::single(
+				TextWithEntities::Simple(Ui::FormatPhone(getData()->phone))),
+			Ui::Text::RichLangValue)
+		: (byTelegram ? tr::lng_code_from_telegram : tr::lng_code_desc)(
+			Ui::Text::RichLangValue));
 	if (getData()->codeByTelegram) {
 		_noTelegramCode->show();
 		_callTimer.cancel();
@@ -350,11 +353,13 @@ void CodeWidget::submitCode(const QString &text) {
 	_code->setEnabled(false);
 	getData()->pwdState = Core::CloudPasswordState();
 	_sentRequest = api().request(MTPauth_SignIn(
-		MTP_flags(MTPauth_SignIn::Flag::f_phone_code),
+		MTP_flags(isEmailVerification()
+			? MTPauth_SignIn::Flag::f_email_verification
+			: MTPauth_SignIn::Flag::f_phone_code),
 		MTP_string(getData()->phone),
 		MTP_bytes(getData()->phoneHash),
 		MTP_string(_sentCode),
-		MTPEmailVerification()
+		MTP_emailVerificationCode(MTP_string(_sentCode))
 	)).done([=](const MTPauth_Authorization &result) {
 		codeSubmitDone(result);
 	}).fail([=](const MTP::Error &error) {
@@ -362,6 +367,10 @@ void CodeWidget::submitCode(const QString &text) {
 	}).handleFloodErrors().send();
 }
 
+bool CodeWidget::isEmailVerification() const {
+	return !getData()->emailPattern.isEmpty();
+}
+
 rpl::producer<QString> CodeWidget::nextButtonText() const {
 	return _isFragment.value(
 	) | rpl::map([=](bool isFragment) {

Telegram/SourceFiles/intro/intro_code.h

@@ -54,6 +54,8 @@ private:
 
 	int errorTop() const override;
 
+	[[nodiscard]] bool isEmailVerification() const;
+
 	void updateCallText();
 	void refreshLang();
 	void updateControlsGeometry();

Telegram/SourceFiles/intro/intro_email.cpp

@@ -0,0 +1,173 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "intro/intro_email.h"
+
+#include "intro/intro_code.h"
+#include "intro/intro_code_input.h"
+#include "lang/lang_keys.h"
+#include "lottie/lottie_icon.h"
+#include "settings/cloud_password/settings_cloud_password_common.h"
+#include "settings/settings_common.h" // CreateLottieIcon.
+#include "ui/rect.h"
+#include "ui/vertical_list.h"
+#include "ui/widgets/fields/input_field.h"
+#include "ui/widgets/labels.h"
+#include "ui/wrap/vertical_layout.h"
+#include "window/window_controller.h"
+#include "window/window_session_controller.h"
+#include "window/window_session_controller.h"
+#include "styles/style_intro.h"
+#include "styles/style_settings.h"
+
+namespace Intro {
+namespace details {
+
+EmailWidget::EmailWidget(
+	QWidget *parent,
+	not_null<Main::Account*> account,
+	not_null<Data*> data)
+: Step(parent, account, data)
+, _inner(this) {
+	const auto content = _inner.get();
+	widthValue() | rpl::start_with_next([=](int w) {
+		content->resizeToWidth(st::introNextButton.width);
+		content->moveToLeft((w - content->width()) / 2, contentTop());
+	}, content->lifetime());
+
+	content->add(
+		object_ptr<Ui::FlatLabel>(
+			content,
+			tr::lng_intro_email_setup_title(),
+			st::introTitle),
+		style::margins(),
+		style::al_left);
+	Ui::AddSkip(content, st::lineWidth * 2);
+	content->add(
+		object_ptr<Ui::FlatLabel>(
+			content,
+			tr::lng_settings_cloud_login_email_about(),
+			st::introDescription),
+		style::margins(),
+		style::al_left);
+
+	{
+		const auto lottie = u"cloud_password/email"_q;
+		const auto size = st::settingsCloudPasswordIconSize / 3 * 2;
+		auto icon = Settings::CreateLottieIcon(
+			content,
+			{ .name = lottie, .sizeOverride = Size(size) },
+			style::margins());
+		content->add(std::move(icon.widget));
+		_showFinished.events(
+		) | rpl::start_with_next([animate = std::move(icon.animate)] {
+			animate(anim::repeat::once);
+		}, lifetime());
+	}
+
+	const auto wrap = Settings::CloudPassword::AddWrappedField(
+		content,
+		tr::lng_settings_cloud_login_email_placeholder(),
+		QString());
+	const auto newInput = wrap->entity();
+	Ui::AddSkip(content);
+	const auto error = Settings::CloudPassword::AddError(content, nullptr);
+	newInput->changes() | rpl::start_with_next([=] {
+		error->hide();
+	}, newInput->lifetime());
+	newInput->setText(getData()->email);
+	if (newInput->hasText()) {
+		newInput->selectAll();
+	}
+	_setFocus.events() | rpl::start_with_next([=] {
+		newInput->setFocus();
+	}, newInput->lifetime());
+
+	_submitCallback = [=] {
+		const auto send = [=](const QString &email) {
+			getData()->email = email;
+
+			const auto done = [=](int length, const QString &pattern) {
+				_sentRequest = 0;
+				getData()->codeLength = length;
+				getData()->emailPattern = pattern;
+				goNext<CodeWidget>();
+			};
+			const auto fail = [=](const QString &type) {
+				_sentRequest = 0;
+
+				newInput->setFocus();
+				newInput->showError();
+				newInput->selectAll();
+				error->show();
+
+				if (MTP::IsFloodError(type)) {
+					error->setText(tr::lng_flood_error(tr::now));
+				} else if (type == u"EMAIL_NOT_ALLOWED"_q) {
+					error->setText(
+						tr::lng_settings_error_email_not_alowed(tr::now));
+				} else if (type == u"EMAIL_INVALID"_q) {
+					error->setText(tr::lng_cloud_password_bad_email(tr::now));
+				} else if (type == u"EMAIL_HASH_EXPIRED"_q) {
+					// Show box?
+					error->setText(Lang::Hard::EmailConfirmationExpired());
+				} else {
+					error->setText(Lang::Hard::ServerError());
+				}
+			};
+
+			_sentRequest = api().request(MTPaccount_SendVerifyEmailCode(
+				MTP_emailVerifyPurposeLoginSetup(
+					MTP_string(getData()->phone),
+					MTP_bytes(getData()->phoneHash)),
+				MTP_string(email)
+			)).done([=](const MTPaccount_SentEmailCode &result) {
+				done(
+					result.data().vlength().v,
+					qs(result.data().vemail_pattern()));
+			}).fail([=](const MTP::Error &error) {
+				fail(error.type());
+			}).send();
+		};
+		const auto newText = newInput->getLastText();
+		if (newText.isEmpty()) {
+			newInput->setFocus();
+			newInput->showError();
+		} else {
+			send(newText);
+		}
+	};
+}
+
+void EmailWidget::submit() {
+	if (_submitCallback) {
+		_submitCallback();
+	}
+}
+
+void EmailWidget::setInnerFocus() {
+	_setFocus.fire({});
+}
+
+void EmailWidget::activate() {
+	Step::activate();
+	showChildren();
+	setInnerFocus();
+	_showFinished.fire({});
+}
+
+void EmailWidget::finished() {
+	Step::finished();
+	cancelled();
+}
+
+void EmailWidget::cancelled() {
+	api().request(base::take(_sentRequest)).cancel();
+}
+
+} // namespace details
+} // namespace Intro

Telegram/SourceFiles/intro/intro_email.h

@@ -0,0 +1,50 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "intro/intro_step.h"
+
+namespace Ui {
+class VerticalLayout;
+} // namespace Ui
+
+namespace MTP {
+class Sender;
+} // namespace MTP
+
+namespace Intro {
+namespace details {
+
+class EmailWidget final : public Step {
+public:
+	EmailWidget(
+		QWidget *parent,
+		not_null<Main::Account*> account,
+		not_null<Data*> data);
+
+	void setInnerFocus() override;
+	void activate() override;
+	void finished() override;
+	void cancelled() override;
+	void submit() override;
+
+	bool hasBack() const override {
+		return true;
+	}
+
+private:
+	object_ptr<Ui::VerticalLayout> _inner;
+	Fn<void()> _submitCallback = nullptr;
+	rpl::event_stream<> _showFinished;
+	rpl::event_stream<> _setFocus;
+	mtpRequestId _sentRequest = 0;
+
+};
+
+} // namespace details
+} // namespace Intro

Telegram/SourceFiles/intro/intro_phone.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "lang/lang_keys.h"
 #include "intro/intro_code.h"
+#include "intro/intro_email.h"
 #include "intro/intro_qr.h"
 #include "styles/style_intro.h"
 #include "ui/widgets/buttons.h"
@@ -237,6 +238,9 @@ void PhoneWidget::phoneSubmitDone(const MTPauth_SentCode &result) {
 		fillSentCodeData(data);
 		getData()->phone = DigitsOnly(_sentPhone);
 		getData()->phoneHash = qba(data.vphone_code_hash());
+		if (getData()->emailStatus == EmailStatus::SetupRequired) {
+			return goNext<EmailWidget>();
+		}
 		const auto next = data.vnext_type();
 		if (next && next->type() == mtpc_auth_codeTypeCall) {
 			getData()->callStatus = CallStatus::Waiting;

Telegram/SourceFiles/intro/intro_step.cpp

@@ -375,7 +375,7 @@ void Step::fillSentCodeData(const MTPDauth_sentCode &data) {
 	}, [&](const MTPDauth_sentCodeTypeSmsPhrase &) {
 		bad("SmsPhrase");
 	}, [&](const MTPDauth_sentCodeTypeSetUpEmailRequired &) {
-		bad("SetUpEmailRequired");
+		getData()->emailStatus = EmailStatus::SetupRequired;
 	});
 }
 

Telegram/SourceFiles/intro/intro_widget.h

@@ -43,6 +43,11 @@ enum class CallStatus {
 	Disabled,
 };
 
+enum class EmailStatus {
+	None,
+	SetupRequired,
+};
+
 struct Data {
 	// Required for the UserpicButton.
 	const not_null<Window::Controller*> controller;
@@ -58,6 +63,10 @@ struct Data {
 	bool codeByTelegram = false;
 	QString codeByFragmentUrl;
 
+	EmailStatus emailStatus = EmailStatus::None;
+	QString email;
+	QString emailPattern;
+
 	Core::CloudPasswordState pwdState;
 
 	Window::TermsLock termsLock;