From 8d5e3567338594df34d0b411cd8eef56d3d0b311 Mon Sep 17 00:00:00 2001
From: BugLight <buglight@kistriver.com>
Date: Tue, 1 Sep 2020 13:50:32 +0300
Subject: [PATCH] Add custom host input that replaces commas with dots

---
 Telegram/SourceFiles/boxes/connection_box.cpp | 50 +++++++++++++++++--
 1 file changed, 46 insertions(+), 4 deletions(-)

diff --git a/Telegram/SourceFiles/boxes/connection_box.cpp b/Telegram/SourceFiles/boxes/connection_box.cpp
index 49204b557..123341aa3 100644
--- a/Telegram/SourceFiles/boxes/connection_box.cpp
+++ b/Telegram/SourceFiles/boxes/connection_box.cpp
@@ -41,6 +41,48 @@ constexpr auto kSaveSettingsDelayedTimeout = crl::time(1000);
 
 using ProxyData = MTP::ProxyData;
 
+class HostInput : public Ui::MaskedInputField {
+public:
+	HostInput(
+		QWidget *parent,
+		const style::InputField &st,
+		rpl::producer<QString> placeholder,
+		const QString &val);
+
+protected:
+	void correctValue(
+		const QString &was,
+		int wasCursor,
+		QString &now,
+		int &nowCursor) override;
+};
+
+HostInput::HostInput(
+	QWidget *parent,
+	const style::InputField &st,
+	rpl::producer<QString> placeholder,
+	const QString &val)
+: MaskedInputField(parent, st, std::move(placeholder), val) {
+}
+
+void HostInput::correctValue(
+		const QString &was,
+		int wasCursor,
+		QString &now,
+		int &nowCursor) {
+	QString newText;
+	int newCursor = nowCursor;
+	newText.reserve(now.size());
+	for (auto i = 0, l = now.size(); i < l; ++i) {
+		if (now[i] == ',') {
+			newText.append('.');
+		} else {
+			newText.append(now[i]);
+		}
+	}
+	setCorrectedText(now, nowCursor, newText, newCursor);
+}
+
 class Base64UrlInput : public Ui::MaskedInputField {
 public:
 	Base64UrlInput(
@@ -209,7 +251,7 @@ private:
 	std::shared_ptr<Ui::RadioenumGroup<Type>> _type;
 
 	QPointer<Ui::SlideWrap<>> _aboutSponsored;
-	QPointer<Ui::InputField> _host;
+	QPointer<HostInput> _host;
 	QPointer<Ui::PortInput> _port;
 	QPointer<Ui::InputField> _user;
 	QPointer<Ui::PasswordInput> _password;
@@ -767,12 +809,12 @@ ProxyBox::ProxyBox(
 void ProxyBox::prepare() {
 	setTitle(tr::lng_proxy_edit());
 
-	connect(_host.data(), &Ui::InputField::changed, [=] {
+	connect(_host.data(), &HostInput::changed, [=] {
 		Ui::PostponeCall(_host, [=] {
 			const auto host = _host->getLastText().trimmed();
 			static const auto mask = u"^\\d+\\.\\d+\\.\\d+\\.\\d+:(\\d*)$"_q;
 			const auto match = QRegularExpression(mask).match(host);
-			if (_host->textCursor().position() == host.size()
+			if (_host->cursorPosition() == host.size()
 				&& match.hasMatch()) {
 				const auto port = match.captured(1);
 				_port->setText(port);
@@ -881,7 +923,7 @@ void ProxyBox::setupSocketAddress(const ProxyData &data) {
 			_content,
 			st::connectionHostInputField.heightMin),
 		st::proxyEditInputPadding);
-	_host = Ui::CreateChild<Ui::InputField>(
+	_host = Ui::CreateChild<HostInput>(
 		address,
 		st::connectionHostInputField,
 		tr::lng_connection_host_ph(),