feat: simplify intro

Telegram/CMakeLists.txt

@@ -1168,8 +1168,6 @@ PRIVATE
     intro/intro_qr.h
     intro/intro_signup.cpp
     intro/intro_signup.h
-    intro/intro_start.cpp
-    intro/intro_start.h
     intro/intro_step.cpp
     intro/intro_step.h
     intro/intro_widget.cpp

Telegram/SourceFiles/intro/intro.style

@@ -59,6 +59,14 @@ introDescription: FlatLabel(defaultFlatLabel) {
 		lineHeight: 20px;
 	}
 }
+introFooter: FlatLabel(defaultFlatLabel) {
+    align: align(center);
+	textFg: introDescriptionFg;
+	style: TextStyle(defaultTextStyle) {
+		font: font(11px);
+		lineHeight: 24px;
+	}
+}
 introDescriptionTop: 34px;
 
 introLink: defaultLinkButton;
@@ -173,7 +181,7 @@ introQrPixel: 50px; // large enough
 introQrMaxSize: 180px;
 introQrBackgroundSkip: 12px;
 introQrBackgroundRadius: 8px;
-introQrLabelsWidth: 292px;
+introQrLabelsWidth: 300px;
 introQrTitleWidth: 320px;
 introQrTitle: FlatLabel(defaultFlatLabel) {
 	textFg: introTitleFg;

Telegram/SourceFiles/intro/intro_qr.h

@@ -28,7 +28,7 @@ public:
 	rpl::producer<QString> nextButtonText() const override;
 
 	bool hasBack() const override {
-		return true;
+		return false;
 	}
 
 private:

Telegram/SourceFiles/intro/intro_start.cpp

@@ -1,42 +0,0 @@
-/*
-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_start.h"
-
-#include "lang/lang_keys.h"
-#include "intro/intro_qr.h"
-#include "intro/intro_phone.h"
-#include "ui/widgets/buttons.h"
-#include "ui/widgets/labels.h"
-#include "main/main_account.h"
-#include "main/main_app_config.h"
-
-namespace Intro {
-namespace details {
-
-StartWidget::StartWidget(
-	QWidget *parent,
-	not_null<Main::Account*> account,
-	not_null<Data*> data)
-: Step(parent, account, data, true) {
-	setMouseTracking(true);
-	setTitleText(rpl::single(u"AyuGram Desktop"_q));
-	setDescriptionText(tr::ayu_IntroAbout());
-	show();
-}
-
-void StartWidget::submit() {
-	account().destroyStaleAuthorizationKeys();
-	goNext<QrWidget>();
-}
-
-rpl::producer<QString> StartWidget::nextButtonText() const {
-	return tr::lng_start_msgs();
-}
-
-} // namespace details
-} // namespace Intro

Telegram/SourceFiles/intro/intro_start.h

@@ -1,34 +0,0 @@
-/*
-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 FlatLabel;
-class LinkButton;
-class RoundButton;
-} // namespace Ui
-
-namespace Intro {
-namespace details {
-
-class StartWidget : public Step {
-public:
-	StartWidget(
-		QWidget *parent,
-		not_null<Main::Account*> account,
-		not_null<Data*> data);
-
-	void submit() override;
-	rpl::producer<QString> nextButtonText() const override;
-
-};
-
-} // namespace details
-} // namespace Intro

Telegram/SourceFiles/intro/intro_widget.cpp

@@ -7,7 +7,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "intro/intro_widget.h"
 
-#include "intro/intro_start.h"
 #include "intro/intro_phone.h"
 #include "intro/intro_qr.h"
 #include "intro/intro_code.h"
@@ -46,6 +45,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_layers.h"
 #include "styles/style_intro.h"
 #include "base/qt/qt_common_adapters.h"
+#include "boxes/about_box.h"
 
 namespace Intro {
 namespace {
@@ -87,6 +87,7 @@ Widget::Widget(
 , _next(
 	this,
 	object_ptr<Ui::RoundButton>(this, nullptr, *_nextStyle))
+, _footer(this, st::introFooter)
 , _connecting(std::make_unique<Window::ConnectionState>(
 		this,
 		account,
@@ -102,10 +103,6 @@ Widget::Widget(
 	}, lifetime());
 
 	switch (point) {
-	case EnterPoint::Start:
-		getNearestDC();
-		appendStep(new StartWidget(this, _account, getData()));
-		break;
 	case EnterPoint::Phone:
 		appendStep(new PhoneWidget(this, _account, getData()));
 		break;
@@ -158,6 +155,8 @@ Widget::Widget(
 			checkUpdateStatus();
 		}, lifetime());
 	}
+
+	_footer->setText(QString("AyuGram Desktop v%1").arg(currentVersionText()));
 }
 
 rpl::producer<> Widget::showSettingsRequested() const {
@@ -826,6 +825,8 @@ void Widget::updateControlsGeometry() {
 			(width() - _terms->width()) / 2,
 			height() - st::introTermsBottom - _terms->height());
 	}
+
+	_footer->move((width() - _footer->width()) / 2, height() - _footer->height() - st::lineWidth * 6);
 }
 
 void Widget::keyPressEvent(QKeyEvent *e) {
@@ -850,7 +851,7 @@ void Widget::backRequested() {
 		Core::App().domain().activate(parent);
 	} else {
 		moveToStep(
-			Ui::CreateChild<StartWidget>(this, _account, getData()),
+			Ui::CreateChild<QrWidget>(this, _account, getData()),
 			StackAction::Replace,
 			Animate::Back);
 	}

Telegram/SourceFiles/intro/intro_widget.h

@@ -82,7 +82,6 @@ class Step;
 } // namespace details
 
 enum class EnterPoint : uchar {
-	Start,
 	Phone,
 	Qr,
 };
@@ -198,6 +197,8 @@ private:
 	object_ptr<Ui::FadeWrap<Ui::RoundButton>> _resetAccount = { nullptr };
 	object_ptr<Ui::FadeWrap<Ui::FlatLabel>> _terms = { nullptr };
 
+	object_ptr<Ui::FlatLabel> _footer;
+
 	std::unique_ptr<Window::ConnectionState> _connecting;
 
 	bool _nextShown = true;

Telegram/SourceFiles/window/window_controller.cpp

@@ -375,10 +375,7 @@ void Controller::clearPasscodeLock() {
 }
 
 void Controller::setupIntro(QPixmap oldContentCache) {
-	const auto point = Core::App().domain().maybeLastOrSomeAuthedAccount()
-		? Intro::EnterPoint::Qr
-		: Intro::EnterPoint::Start;
-	_widget.setupIntro(point, std::move(oldContentCache));
+	_widget.setupIntro(Intro::EnterPoint::Qr, std::move(oldContentCache));
 }
 
 void Controller::setupMain(