Move variable files to to variables folder

lib/variables/variable-line-edit.cpp

@@ -0,0 +1,45 @@
+#include "variable-line-edit.hpp"
+#include "obs-module-helper.hpp"
+#include "ui-helpers.hpp"
+
+namespace advss {
+
+VariableLineEdit::VariableLineEdit(QWidget *parent) : QLineEdit(parent)
+{
+	QLineEdit::setToolTip(
+		obs_module_text("AdvSceneSwitcher.tooltip.availableVariables"));
+
+	QWidget::connect(this, SIGNAL(inputRejected()), this,
+			 SLOT(DisplayValidationMessages()));
+}
+
+void VariableLineEdit::setText(const QString &string)
+{
+	QLineEdit::setText(string);
+}
+
+void VariableLineEdit::setText(const StringVariable &string)
+{
+	QLineEdit::setText(QString::fromStdString(string.UnresolvedValue()));
+}
+
+void VariableLineEdit::setToolTip(const QString &string)
+{
+	QLineEdit::setToolTip(
+		string + "\n" +
+		obs_module_text("AdvSceneSwitcher.tooltip.availableVariables"));
+}
+
+void VariableLineEdit::DisplayValidationMessages()
+{
+	int maxLength = QLineEdit::maxLength();
+
+	if (QLineEdit::text().length() == maxLength) {
+		DisplayMessage(
+			QString(obs_module_text(
+					"AdvSceneSwitcher.validation.text.maxLength"))
+				.arg(QString::number(maxLength)));
+	}
+}
+
+} // namespace advss