Always jump to next field in payments.

Telegram/SourceFiles/payments/ui/payments_edit_card.cpp

@@ -276,8 +276,18 @@ not_null<RpWidget*> EditCard::setupContent() {
 	const auto showBox = [=](object_ptr<BoxContent> box) {
 		_delegate->panelShowBox(std::move(box));
 	};
+	auto last = (Field*)nullptr;
+	const auto make = [&](QWidget *parent, FieldConfig &&config) {
+		auto result = std::make_unique<Field>(parent, std::move(config));
+		if (last) {
+			last->setNextField(result.get());
+			result->setPreviousField(last);
+		}
+		last = result.get();
+		return result;
+	};
 	const auto add = [&](FieldConfig &&config) {
-		auto result = std::make_unique<Field>(inner, std::move(config));
+		auto result = make(inner, std::move(config));
 		inner->add(result->ownedWidget(), st::paymentsFieldPadding);
 		return result;
 	};
@@ -291,12 +301,12 @@ not_null<RpWidget*> EditCard::setupContent() {
 			inner,
 			_number->widget()->height()),
 		st::paymentsFieldPadding);
-	_expire = std::make_unique<Field>(container, FieldConfig{
+	_expire = make(container, {
 		.type = FieldType::CardExpireDate,
 		.placeholder = rpl::single(u"MM / YY"_q),
 		.validator = ExpireDateValidator(),
 	});
-	_cvc = std::make_unique<Field>(container, FieldConfig{
+	_cvc = make(container, {
 		.type = FieldType::CardCVC,
 		.placeholder = rpl::single(u"CVC"_q),
 		.validator = CvcValidator([=] { return _number->value(); }),
@@ -319,15 +329,6 @@ not_null<RpWidget*> EditCard::setupContent() {
 		});
 	}
 
-	_number->setNextField(_expire.get());
-	_expire->setPreviousField(_number.get());
-	_expire->setNextField(_cvc.get());
-	_cvc->setPreviousField(_expire.get());
-	if (_name) {
-		_cvc->setNextField(_name.get());
-		_name->setPreviousField(_cvc.get());
-	}
-
 	if (_native.needCountry || _native.needZip) {
 		inner->add(
 			object_ptr<Ui::FlatLabel>(
@@ -366,6 +367,12 @@ not_null<RpWidget*> EditCard::setupContent() {
 				false),
 			st::paymentsSaveCheckboxPadding);
 	}
+
+	last->submitted(
+	) | rpl::start_with_next([=] {
+		_delegate->panelValidateCard(collect(), _save && _save->checked());
+	}, lifetime());
+
 	return inner;
 }
 

Telegram/SourceFiles/payments/ui/payments_edit_information.cpp

@@ -113,9 +113,15 @@ not_null<RpWidget*> EditInformation::setupContent() {
 	const auto showBox = [=](object_ptr<BoxContent> box) {
 		_delegate->panelShowBox(std::move(box));
 	};
+	auto last = (Field*)nullptr;
 	const auto add = [&](FieldConfig &&config) {
 		auto result = std::make_unique<Field>(inner, std::move(config));
 		inner->add(result->ownedWidget(), st::paymentsFieldPadding);
+		if (last) {
+			last->setNextField(result.get());
+			result->setPreviousField(last);
+		}
+		last = result.get();
 		return result;
 	};
 	if (_invoice.isShippingAddressRequested) {
@@ -200,6 +206,14 @@ not_null<RpWidget*> EditInformation::setupContent() {
 			tr::lng_payments_save_information(tr::now),
 			true),
 		st::paymentsSaveCheckboxPadding);
+
+	if (last) {
+		last->submitted(
+		) | rpl::start_with_next([=] {
+			_delegate->panelValidateInformation(collect());
+		}, lifetime());
+	}
+
 	return inner;
 }
 

Telegram/SourceFiles/payments/ui/payments_field.cpp

@@ -430,6 +430,7 @@ Field::Field(QWidget *parent, FieldConfig &&config)
 		setupValidator(MoneyValidator(LookupCurrencyRule(config.currency)));
 	}
 	setupFrontBackspace();
+	setupSubmit();
 }
 
 RpWidget *Field::widget() const {
@@ -455,6 +456,10 @@ rpl::producer<> Field::finished() const {
 	return _finished.events();
 }
 
+rpl::producer<> Field::submitted() const {
+	return _submitted.events();
+}
+
 void Field::setupMaskedGeometry() {
 	Expects(_masked != nullptr);
 
@@ -492,6 +497,13 @@ void Field::setupCountry() {
 			_masked->setText(Data::CountryNameByISO2(iso2));
 			_masked->hideError();
 			raw->closeBox();
+			if (!iso2.isEmpty()) {
+				if (_nextField) {
+					_nextField->activate();
+				} else {
+					_submitted.fire({});
+				}
+			}
 		}, _masked->lifetime());
 		raw->boxClosing() | rpl::start_with_next([=] {
 			setFocus();
@@ -563,6 +575,8 @@ void Field::setupValidator(Fn<ValidateResult(ValidateRequest)> validator) {
 			.nowValue = now.value,
 			.nowPosition = now.position,
 		});
+		_valid = result.finished || !result.invalid;
+
 		const auto changed = (result.value != now.value);
 		if (changed) {
 			setText(result.value);
@@ -609,7 +623,26 @@ void Field::setupFrontBackspace() {
 	}
 }
 
+void Field::setupSubmit() {
+	const auto submitted = [=] {
+		if (!_valid) {
+			showError();
+		} else if (_nextField) {
+			_nextField->activate();
+		} else {
+			_submitted.fire({});
+		}
+	};
+	if (_masked) {
+		QObject::connect(_masked, &MaskedInputField::submitted, submitted);
+	} else {
+		QObject::connect(_input, &InputField::submitted, submitted);
+	}
+}
+
 void Field::setNextField(not_null<Field*> field) {
+	_nextField = field;
+
 	finished() | rpl::start_with_next([=] {
 		field->setFocus();
 	}, _masked ? _masked->lifetime() : _input->lifetime());
@@ -622,16 +655,22 @@ void Field::setPreviousField(not_null<Field*> field) {
 	}, _masked ? _masked->lifetime() : _input->lifetime());
 }
 
-void Field::setFocus() {
-	if (_config.type == FieldType::Country) {
-		_wrap->setFocus();
-	} else if (_input) {
+void Field::activate() {
+	if (_input) {
 		_input->setFocus();
 	} else {
 		_masked->setFocus();
 	}
 }
 
+void Field::setFocus() {
+	if (_config.type == FieldType::Country) {
+		_wrap->setFocus();
+	} else {
+		activate();
+	}
+}
+
 void Field::setFocusFast() {
 	if (_config.type == FieldType::Country) {
 		setFocus();

Telegram/SourceFiles/payments/ui/payments_field.h

@@ -98,7 +98,9 @@ public:
 	[[nodiscard]] QString value() const;
 	[[nodiscard]] rpl::producer<> frontBackspace() const;
 	[[nodiscard]] rpl::producer<> finished() const;
+	[[nodiscard]] rpl::producer<> submitted() const;
 
+	void activate();
 	void setFocus();
 	void setFocusFast();
 	void showError();
@@ -120,17 +122,21 @@ private:
 	void setupCountry();
 	void setupValidator(Fn<ValidateResult(ValidateRequest)> validator);
 	void setupFrontBackspace();
+	void setupSubmit();
 
 	const FieldConfig _config;
 	const base::unique_qptr<RpWidget> _wrap;
 	rpl::event_stream<> _frontBackspace;
 	rpl::event_stream<> _finished;
+	rpl::event_stream<> _submitted;
 	rpl::event_stream<> _textPossiblyChanged; // Must be above _masked.
 	InputField *_input = nullptr;
 	MaskedInputField *_masked = nullptr;
+	Field *_nextField = nullptr;
 	QString _countryIso2;
 	State _was;
 	bool _validating = false;
+	bool _valid = true;
 
 };