Added settings section for input of new login email replacement.

Telegram/CMakeLists.txt

@@ -1432,6 +1432,8 @@ PRIVATE
     settings/cloud_password/settings_cloud_password_hint.h
     settings/cloud_password/settings_cloud_password_input.cpp
     settings/cloud_password/settings_cloud_password_input.h
+    settings/cloud_password/settings_cloud_password_login_email.cpp
+    settings/cloud_password/settings_cloud_password_login_email.h
     settings/cloud_password/settings_cloud_password_manage.cpp
     settings/cloud_password/settings_cloud_password_manage.h
     settings/cloud_password/settings_cloud_password_start.cpp

Telegram/SourceFiles/settings/cloud_password/settings_cloud_password_login_email.cpp

@@ -0,0 +1,170 @@
+/*
+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 "settings/cloud_password/settings_cloud_password_login_email.h"
+
+#include "api/api_cloud_password.h"
+#include "core/core_cloud_password.h"
+#include "info/channel_statistics/boosts/giveaway/boost_badge.h" // InfiniteRadialAnimationWidget.
+#include "lang/lang_keys.h"
+#include "main/main_session.h"
+#include "settings/cloud_password/settings_cloud_password_common.h"
+#include "settings/cloud_password/settings_cloud_password_email_confirm.h"
+#include "settings/cloud_password/settings_cloud_password_manage.h"
+#include "settings/cloud_password/settings_cloud_password_step.h"
+#include "ui/boxes/confirm_box.h"
+#include "ui/vertical_list.h"
+#include "ui/widgets/buttons.h"
+#include "ui/widgets/fields/input_field.h"
+#include "ui/wrap/vertical_layout.h"
+#include "window/window_session_controller.h"
+#include "styles/style_giveaway.h"
+#include "styles/style_layers.h"
+#include "styles/style_settings.h"
+
+namespace Settings {
+namespace CloudPassword {
+
+class LoginEmail : public TypedAbstractStep<LoginEmail> {
+public:
+	using TypedAbstractStep::TypedAbstractStep;
+
+	[[nodiscard]] rpl::producer<QString> title() override;
+	void setupContent();
+
+private:
+	rpl::lifetime _requestLifetime;
+	std::optional<MTP::Sender> _api;
+	rpl::variable<bool> _confirmButtonBusy = false;
+
+};
+
+rpl::producer<QString> LoginEmail::title() {
+	return tr::lng_settings_cloud_login_email_section_title();
+}
+
+void LoginEmail::setupContent() {
+	const auto content = Ui::CreateChild<Ui::VerticalLayout>(this);
+
+	auto currentStepData = stepData();
+	const auto newEmail = base::take(currentStepData.email);
+	setStepData(currentStepData);
+
+	SetupHeader(
+		content,
+		u"cloud_password/email"_q,
+		showFinishes(),
+		tr::lng_settings_cloud_login_email_title(),
+		tr::lng_settings_cloud_login_email_about());
+
+	Ui::AddSkip(content, st::settingLocalPasscodeDescriptionBottomSkip);
+
+	const auto wrap = AddWrappedField(
+		content,
+		tr::lng_settings_cloud_login_email_placeholder(),
+		QString());
+	const auto newInput = wrap->entity();
+	const auto error = AddError(content, nullptr);
+	newInput->changes() | rpl::start_with_next([=] {
+		error->hide();
+	}, newInput->lifetime());
+	newInput->setText(newEmail);
+	if (newInput->hasText()) {
+		newInput->selectAll();
+	}
+	AddSkipInsteadOfField(content);
+
+	const auto send = [=] {
+		Expects(_api == std::nullopt);
+
+		_confirmButtonBusy = true;
+		_api.emplace(&controller()->session().mtp());
+
+		const auto data = stepData();
+
+		const auto done = [=](int length, const QString &pattern) {
+			_api.reset();
+			_confirmButtonBusy = false;
+			auto data = stepData();
+			data.unconfirmedEmailLengthCode = length;
+			setStepData(std::move(data));
+			showOther(CloudPasswordEmailConfirmId());
+		};
+		const auto fail = [=](const QString &type) {
+			_api.reset();
+			_confirmButtonBusy = false;
+
+			if (MTP::IsFloodError(type)) {
+				error->show();
+				error->setText(tr::lng_flood_error(tr::now));
+			} else if (AbstractStep::isPasswordInvalidError(type)) {
+			} else if (type == u"EMAIL_INVALID"_q) {
+				error->show();
+				error->setText(tr::lng_cloud_password_bad_email(tr::now));
+				newInput->setFocus();
+				newInput->showError();
+				newInput->selectAll();
+			}
+		};
+
+		Api::RequestLoginEmailCode(*_api, data.email, done, fail);
+	};
+
+	const auto confirm = [=](const QString &email) {
+		if (_confirmButtonBusy.current()) {
+			return;
+		}
+
+		auto data = stepData();
+		data.email = email;
+		setStepData(std::move(data));
+
+		if (!email.isEmpty()) {
+			send();
+			return;
+		}
+	};
+
+	const auto button = AddDoneButton(
+		content,
+		rpl::conditional(
+			_confirmButtonBusy.value(),
+			rpl::single(QString()),
+			tr::lng_settings_cloud_login_email_confirm()));
+	button->setClickedCallback([=] {
+		const auto newText = newInput->getLastText();
+		if (newText.isEmpty()) {
+			newInput->setFocus();
+			newInput->showError();
+		} else {
+			confirm(newText);
+		}
+	});
+	{
+		using namespace Info::Statistics;
+		const auto loadingAnimation = InfiniteRadialAnimationWidget(
+			button,
+			st::giveawayGiftCodeStartButton.height / 2);
+		AddChildToWidgetCenter(button, loadingAnimation);
+		loadingAnimation->showOn(_confirmButtonBusy.value());
+	}
+
+	const auto submit = [=] { button->clicked({}, Qt::LeftButton); };
+	newInput->submits() | rpl::start_with_next(submit, newInput->lifetime());
+
+	setFocusCallback([=] { newInput->setFocus(); });
+
+	Ui::ResizeFitChild(this, content);
+}
+
+} // namespace CloudPassword
+
+Type CloudLoginEmailId() {
+	return CloudPassword::LoginEmail::Id();
+}
+
+} // namespace Settings

Telegram/SourceFiles/settings/cloud_password/settings_cloud_password_login_email.h

@@ -0,0 +1,17 @@
+/*
+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 "settings/settings_type.h"
+
+namespace Settings {
+
+Type CloudLoginEmailId();
+
+} // namespace Settings
+