Allow clicking buttons of non-selectable TreeItems

scene/gui/tree.cpp

@@ -2770,21 +2770,9 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, int
 			x -= theme_cache.h_separation;
 		}
 
-		if (!p_item->disable_folding && !hide_folding && !p_item->cells[col].editable && !p_item->cells[col].selectable && p_item->get_first_child()) {
-			if (enable_recursive_folding && p_mod->is_shift_pressed()) {
-				p_item->set_collapsed_recursive(!p_item->is_collapsed());
-			} else {
-				p_item->set_collapsed(!p_item->is_collapsed());
-			}
-			return -1; //collapse/uncollapse because nothing can be done with item
-		}
-
 		const TreeItem::Cell &c = p_item->cells[col];
 
-		bool already_selected = c.selected;
-		bool already_cursor = (p_item == selected_item) && col == selected_col;
-
-		if (!cache.rtl && p_item->cells[col].buttons.size()) {
+		if (!cache.rtl && !p_item->cells[col].buttons.is_empty()) {
 			int button_w = 0;
 			for (int j = p_item->cells[col].buttons.size() - 1; j >= 0; j--) {
 				Ref<Texture2D> b = p_item->cells[col].buttons[j].texture;
@@ -2827,6 +2815,18 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, int
 			col_width -= w + theme_cache.button_margin;
 		}
 
+		if (!p_item->disable_folding && !hide_folding && !p_item->cells[col].editable && !p_item->cells[col].selectable && p_item->get_first_child()) {
+			if (enable_recursive_folding && p_mod->is_shift_pressed()) {
+				p_item->set_collapsed_recursive(!p_item->is_collapsed());
+			} else {
+				p_item->set_collapsed(!p_item->is_collapsed());
+			}
+			return -1; // Collapse/uncollapse, because nothing can be done with the item.
+		}
+
+		bool already_selected = c.selected;
+		bool already_cursor = (p_item == selected_item) && col == selected_col;
+
 		if (p_button == MouseButton::LEFT || (p_button == MouseButton::RIGHT && allow_rmb_select)) {
 			/* process selection */