Prevent hidden tab close buttons from intercepting input [4.0]

scene/gui/tab_bar.cpp

@@ -164,7 +164,7 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
 
 		if (rb_pressing && !mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
 			if (rb_hover != -1) {
-				// pressed
+				// Right mouse button clicked.
 				emit_signal(SNAME("tab_rmb_clicked"), rb_hover);
 			}
 
@@ -174,7 +174,7 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
 
 		if (cb_pressing && !mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
 			if (cb_hover != -1) {
-				// pressed
+				// Close button pressed.
 				emit_signal(SNAME("tab_close_pressed"), cb_hover);
 			}
 
@@ -183,7 +183,7 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
 		}
 
 		if (mb->is_pressed() && (mb->get_button_index() == MouseButton::LEFT || (select_with_rmb && mb->get_button_index() == MouseButton::RIGHT))) {
-			// clicks
+			// Clicks.
 			Point2 pos = mb->get_position();
 
 			if (buttons_visible) {
@@ -235,7 +235,7 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
 					return;
 				}
 
-				if (tabs[i].cb_rect.has_point(pos)) {
+				if (tabs[i].cb_rect.has_point(pos) && (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current))) {
 					cb_pressing = true;
 					update();
 					return;
@@ -659,7 +659,7 @@ void TabBar::_update_hover() {
 	}
 
 	const Point2 &pos = get_local_mouse_position();
-	// test hovering to display right or close button
+	// test hovering to display right or close button.
 	int hover_now = -1;
 	int hover_buttons = -1;
 	for (int i = offset; i < tabs.size(); i++) {
@@ -684,7 +684,7 @@ void TabBar::_update_hover() {
 		emit_signal(SNAME("tab_hovered"), hover);
 	}
 
-	if (hover_buttons == -1) { // no hover
+	if (hover_buttons == -1) { // No hover.
 		rb_hover = hover_buttons;
 		cb_hover = hover_buttons;
 	}
@@ -860,7 +860,7 @@ bool TabBar::can_drop_data(const Point2 &p_point, const Variant &p_data) const {
 		if (from_path == to_path) {
 			return true;
 		} else if (get_tabs_rearrange_group() != -1) {
-			// drag and drop between other TabBars
+			// Drag and drop between other TabBars.
 			Node *from_node = get_node(from_path);
 			TabBar *from_tabs = Object::cast_to<TabBar>(from_node);
 			if (from_tabs && from_tabs->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {
@@ -895,7 +895,7 @@ void TabBar::drop_data(const Point2 &p_point, const Variant &p_data) {
 			emit_signal(SNAME("active_tab_rearranged"), hover_now);
 			set_current_tab(hover_now);
 		} else if (get_tabs_rearrange_group() != -1) {
-			// drag and drop between Tabs
+			// Drag and drop between Tabs.
 			Node *from_node = get_node(from_path);
 			TabBar *from_tabs = Object::cast_to<TabBar>(from_node);
 			if (from_tabs && from_tabs->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {