Focus changed signals for TextInput widget

src/Insight/UserInterfaces/InsightWindow/Widgets/TextInput.cpp

@@ -19,3 +19,13 @@ void TextInput::contextMenuEvent(QContextMenuEvent* event) {
         menu->popup(event->globalPos());
     }
 }
+
+void TextInput::focusInEvent(QFocusEvent* event) {
+    QLineEdit::focusInEvent(event);
+    emit this->focusChanged();
+}
+
+void TextInput::focusOutEvent(QFocusEvent* event) {
+    QLineEdit::focusOutEvent(event);
+    emit this->focusChanged();
+}

src/Insight/UserInterfaces/InsightWindow/Widgets/TextInput.hpp

@@ -2,6 +2,7 @@
 
 #include <QLineEdit>
 #include <QContextMenuEvent>
+#include <QFocusEvent>
 
 namespace Bloom::Widgets
 {
@@ -12,8 +13,13 @@ namespace Bloom::Widgets
     public:
         explicit TextInput(QWidget* parent = nullptr);
 
+    signals:
+        void focusChanged();
+
     protected:
         void contextMenuEvent(QContextMenuEvent* event) override;
+        void focusInEvent(QFocusEvent* event) override;
+        void focusOutEvent(QFocusEvent* event) override;
 
     };
 }