Declarative support and tests for Grid's 7.5 features (#17481)

- Grid.Column.hidden and Grid.Column.hidable
- Grid.columnReorderingAllowed

Change-Id: Iee2e3ff7472bceef314403b750549c99e26a9546

server/src/com/vaadin/ui/Grid.java

                     getMaximumWidth(), def.maxWidth, Double.class);
             DesignAttributeHandler.writeAttribute("expand", attributes,
                     getExpandRatio(), def.expandRatio, Integer.class);
+            DesignAttributeHandler.writeAttribute("hidable", attributes,
+                    isHidable(), def.hidable, boolean.class);
+            DesignAttributeHandler.writeAttribute("hidden", attributes,
+                    isHidden(), def.hidden, boolean.class);
             DesignAttributeHandler.writeAttribute("property-id", attributes,
                     getPropertyId(), null, Object.class);
         }
                 setEditable(DesignAttributeHandler.readAttribute("editable",
                         attributes, boolean.class));
             }
-
+            if (design.hasAttr("hidable")) {
+                setHidable(DesignAttributeHandler.readAttribute("hidable",
+                        attributes, boolean.class));
+            }
+            if (design.hasAttr("hidden")) {
+                setHidden(DesignAttributeHandler.readAttribute("hidden",
+                        attributes, boolean.class));
+            }
             // Read size info where necessary.
             if (design.hasAttr("width")) {
                 setWidth(DesignAttributeHandler.readAttribute("width",

server/tests/src/com/vaadin/tests/server/component/grid/declarative/GridColumnDeclarativeTest.java

                 + "   <col sortable=true width='100' property-id='Column1'>"
                 + "   <col sortable=false max-width='200' expand='2' property-id='Column2'>"
                 + "   <col sortable=true editable=false min-width='15' expand='1' property-id='Column3'>"
+                + "   <col sortable=true hidable=true property-id='Column4'>"
+                + "   <col sortable=true hidden=true property-id='Column5'>"
                 + "</colgroup>" //
                 + "<thead />" //
                 + "</table></v-grid>";
                 .setExpandRatio(2).setSortable(false);
         grid.addColumn("Column3", String.class).setMinimumWidth(15)
                 .setExpandRatio(1).setEditable(false);
+        grid.addColumn("Column4", String.class).setHidable(true);
+        grid.addColumn("Column5", String.class).setHidden(true);
 
         // Remove the default header
         grid.removeHeaderRow(grid.getDefaultHeaderRow());

server/tests/src/com/vaadin/tests/server/component/grid/declarative/GridDeclarativeAttributeTest.java

     public void testBasicAttributes() {
 
         String design = "<v-grid editable='true' rows=20 frozen-columns=-1 "
-                + "editor-save-caption='Tallenna' editor-cancel-caption='Peruuta'>";
+                + "editor-save-caption='Tallenna' editor-cancel-caption='Peruuta' column-reordering-allowed=true>";
 
         Grid grid = new Grid();
         grid.setEditorEnabled(true);
         grid.setFrozenColumnCount(-1);
         grid.setEditorSaveCaption("Tallenna");
         grid.setEditorCancelCaption("Peruuta");
+        grid.setColumnReorderingAllowed(true);
 
         testRead(design, grid);
         testWrite(design, grid);