Implement LineEdit.get_selected_text()

doc/classes/LineEdit.xml

@@ -109,6 +109,12 @@
 				Returns the scroll offset due to [member caret_column], as a number of characters.
 			</description>
 		</method>
+		<method name="get_selected_text">
+			<return type="String" />
+			<description>
+				Returns the text inside the selection.
+			</description>
+		</method>
 		<method name="get_selection_from_column" qualifiers="const">
 			<return type="int" />
 			<description>

scene/gui/line_edit.cpp

@@ -335,7 +335,7 @@ void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
 							}
 						}
 						if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
-							DisplayServer::get_singleton()->clipboard_set_primary(text.substr(selection.begin, selection.end - selection.begin));
+							DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
 						}
 					}
 				}
@@ -355,7 +355,7 @@ void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
 
 		} else {
 			if (selection.enabled && !pass && b->get_button_index() == MouseButton::LEFT && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
-				DisplayServer::get_singleton()->clipboard_set_primary(text.substr(selection.begin, selection.end - selection.begin));
+				DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
 			}
 			if (!text.is_empty() && is_editable() && clear_button_enabled) {
 				bool press_attempt = clear_button_status.press_attempt;
@@ -644,7 +644,7 @@ Variant LineEdit::get_drag_data(const Point2 &p_point) {
 	}
 
 	if (selection.drag_attempt && selection.enabled) {
-		String t = text.substr(selection.begin, selection.end - selection.begin);
+		String t = get_selected_text();
 		Label *l = memnew(Label);
 		l->set_text(t);
 		set_drag_preview(l);
@@ -1168,13 +1168,13 @@ void LineEdit::_notification(int p_what) {
 
 void LineEdit::copy_text() {
 	if (selection.enabled && !pass) {
-		DisplayServer::get_singleton()->clipboard_set(text.substr(selection.begin, selection.end - selection.begin));
+		DisplayServer::get_singleton()->clipboard_set(get_selected_text());
 	}
 }
 
 void LineEdit::cut_text() {
 	if (editable && selection.enabled && !pass) {
-		DisplayServer::get_singleton()->clipboard_set(text.substr(selection.begin, selection.end - selection.begin));
+		DisplayServer::get_singleton()->clipboard_set(get_selected_text());
 		selection_delete();
 	}
 }
@@ -1811,6 +1811,14 @@ bool LineEdit::has_selection() const {
 	return selection.enabled;
 }
 
+String LineEdit::get_selected_text() {
+	if (selection.enabled) {
+		return text.substr(selection.begin, selection.end - selection.begin);
+	} else {
+		return String();
+	}
+}
+
 int LineEdit::get_selection_from_column() const {
 	ERR_FAIL_COND_V(!selection.enabled, -1);
 	return selection.begin;
@@ -2486,6 +2494,7 @@ void LineEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("select_all"), &LineEdit::select_all);
 	ClassDB::bind_method(D_METHOD("deselect"), &LineEdit::deselect);
 	ClassDB::bind_method(D_METHOD("has_selection"), &LineEdit::has_selection);
+	ClassDB::bind_method(D_METHOD("get_selected_text"), &LineEdit::get_selected_text);
 	ClassDB::bind_method(D_METHOD("get_selection_from_column"), &LineEdit::get_selection_from_column);
 	ClassDB::bind_method(D_METHOD("get_selection_to_column"), &LineEdit::get_selection_to_column);
 	ClassDB::bind_method(D_METHOD("set_text", "text"), &LineEdit::set_text);

scene/gui/line_edit.h

@@ -274,6 +274,7 @@ public:
 	void selection_delete();
 	void deselect();
 	bool has_selection() const;
+	String get_selected_text();
 	int get_selection_from_column() const;
 	int get_selection_to_column() const;