FFScontext-menu

11 files changed, 625 insertions, 1 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuClientRpc.java b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuClientRpc.java
new file mode 100644
index 0000000000..319695686c
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuClientRpc.java
@@ -0,0 +1,13 @@
+package com.vaadin.tests.widgetset.client.contextmenu;
+
+import com.vaadin.shared.communication.ClientRpc;
+
+public interface ContextMenuClientRpc extends ClientRpc {
+    /**
+     * Sends request to client widget to open context menu to given position.
+     *
+     * @param x
+     * @param y
+     */
+    public void showContextMenu(int x, int y);
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuConnector.java b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuConnector.java
new file mode 100644
index 0000000000..b6514011d5
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuConnector.java
@@ -0,0 +1,120 @@
+package com.vaadin.tests.widgetset.client.contextmenu;
+
+import java.util.logging.Logger;
+
+import com.vaadin.client.ServerConnector;
+import com.vaadin.client.communication.StateChangeEvent;
+import com.vaadin.client.extensions.AbstractExtensionConnector;
+import com.vaadin.client.ui.VMenuBar.CustomMenuItem;
+import com.vaadin.client.ui.menubar.MenuBarConnector;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.tests.widgetset.contextmenu.ContextMenu;
+
+@SuppressWarnings("serial")
+@Connect(ContextMenu.class)
+public class ContextMenuConnector extends AbstractExtensionConnector {
+    @SuppressWarnings("unused")
+    private static Logger logger = Logger.getLogger("ContextMenuConnector");
+
+    private MenuBarConnector innerConnector = new MenuBarConnector() {
+        @Override
+        public VContextMenuBar getWidget() {
+            // todo another class?
+            return (VContextMenuBar) super.getWidget();
+        }
+    };
+    private VContextMenuBar contextMenuWidget = (VContextMenuBar) innerConnector
+            .getWidget();
+
+    @Override
+    public ContextMenuState getState() {
+        return (ContextMenuState) super.getState();
+    }
+
+    @Override
+    public void onStateChanged(StateChangeEvent stateChangeEvent) {
+        super.onStateChanged(stateChangeEvent);
+        innerConnector.onStateChanged(stateChangeEvent);
+    }
+
+    @Override
+    protected void init() {
+        super.init();
+        innerConnector.doInit(getConnectorId(), getConnection());
+        contextMenuWidget.setPixelSize(0, 0);
+        /*
+         * CustomMenuItem item = GWT.create(CustomMenuItem.class);
+         * dummyRootMenuBar.getItems().add(item);
+         *
+         * contextMenuWidget = new MyVMenuBar(true, dummyRootMenuBar);
+         * contextMenuWidget.setConnection(getConnection());
+         * item.setSubMenu(contextMenuWidget);
+         */
+
+        registerRpc(ContextMenuClientRpc.class, new ContextMenuClientRpc() {
+            @Override
+            public void showContextMenu(int x, int y) {
+                showMenu(x, y);
+            }
+        });
+
+        /*
+         * Event.addNativePreviewHandler(new NativePreviewHandler() {
+         *
+         * @Override public void onPreviewNativeEvent(NativePreviewEvent event)
+         * { if (event.getTypeInt() == Event.ONKEYDOWN &&
+         * contextMenuWidget.isPopupShowing()) { boolean handled =
+         * contextMenuWidget.handleNavigation(
+         * event.getNativeEvent().getKeyCode(),
+         * event.getNativeEvent().getCtrlKey(),
+         * event.getNativeEvent().getShiftKey());
+         *
+         * if (handled) { event.cancel(); } } } });
+         */
+    }
+
+    private void showMenu(int eventX, int eventY) {
+
+        if (contextMenuWidget.getItems().size() == 0) {
+            return;
+        }
+        CustomMenuItem firstItem = innerConnector.getWidget().getItems().get(0);
+        contextMenuWidget.setSelected(firstItem);
+        contextMenuWidget.showChildMenuAt(firstItem, eventY, eventX);
+    }
+
+    @Override
+    protected void extend(ServerConnector target) {
+        Logger.getLogger("ContextMenuConnector").info("extend");
+
+        // Widget widget = ((AbstractComponentConnector) target).getWidget();
+
+        // widget.addDomHandler(new ContextMenuHandler() {
+        //
+        // @Override
+        // public void onContextMenu(ContextMenuEvent event) {
+        // event.stopPropagation();
+        // event.preventDefault();
+        //
+        // showMenu(event.getNativeEvent().getClientX(), event
+        // .getNativeEvent().getClientY());
+        // }
+        // }, ContextMenuEvent.getType());
+
+        // widget.addDomHandler(new KeyDownHandler() {
+        // @Override
+        // public void onKeyDown(KeyDownEvent event) {
+        // // FIXME: check if menu is shown or handleNavigation will do it?
+        //
+        // boolean handled = contextMenuWidget.handleNavigation(event
+        // .getNativeEvent().getKeyCode(), event.getNativeEvent()
+        // .getCtrlKey(), event.getNativeEvent().getShiftKey());
+        //
+        // if (handled) {
+        // event.stopPropagation();
+        // event.preventDefault();
+        // }
+        // }
+        // }, KeyDownEvent.getType());
+    }
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuServerRpc.java b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuServerRpc.java
new file mode 100644
index 0000000000..94edcf7442
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuServerRpc.java
@@ -0,0 +1,7 @@
+package com.vaadin.tests.widgetset.client.contextmenu;
+
+import com.vaadin.shared.communication.ServerRpc;
+
+public interface ContextMenuServerRpc extends ServerRpc {
+    void itemClicked(int itemId, boolean menuClosed);
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuState.java b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuState.java
new file mode 100644
index 0000000000..9fc93bea43
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/ContextMenuState.java
@@ -0,0 +1,9 @@
+package com.vaadin.tests.widgetset.client.contextmenu;
+
+import com.vaadin.shared.ui.menubar.MenuBarState;
+
+public class ContextMenuState extends MenuBarState {
+    {
+        primaryStyleName = "v-contextmenu";
+    }
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/VContextMenuBar.java b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/VContextMenuBar.java
new file mode 100644
index 0000000000..a98f265cc2
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/client/contextmenu/VContextMenuBar.java
@@ -0,0 +1,15 @@
+package com.vaadin.tests.widgetset.client.contextmenu;
+
+import com.vaadin.client.ui.VMenuBar;
+
+public class VContextMenuBar extends VMenuBar {
+    public VContextMenuBar() {
+        setPixelSize(0, 0);
+        setVisible(false);
+    }
+
+    @Override
+    public void showChildMenuAt(CustomMenuItem item, int top, int left) {
+        super.showChildMenuAt(item, top, left);
+    }
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextMenu.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextMenu.java
index 4bb3f17693..586ac9c4b3 100644
--- a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextMenu.java
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextMenu.java
@@ -1,4 +1,165 @@
 package com.vaadin.tests.widgetset.contextmenu;
 
-public class ContextMenu {
+import java.io.Serializable;
+import java.lang.reflect.Method;
+import java.util.EventListener;
+import java.util.EventObject;
+import java.util.List;
+
+import com.vaadin.event.ContextClickEvent;
+import com.vaadin.server.AbstractExtension;
+import com.vaadin.server.Resource;
+import com.vaadin.shared.Registration;
+import com.vaadin.ui.AbstractComponent;
+import com.vaadin.ui.Component;
+import com.vaadin.ui.MenuBar;
+import com.vaadin.ui.MenuBar.Command;
+import com.vaadin.ui.MenuBar.MenuItem;
+import com.vaadin.util.ReflectTools;
+
+public class ContextMenu extends AbstractExtension {
+
+    private final MenuItem rootItem;
+    private final MenuBar innerMenubar;
+
+    public ContextMenu(AbstractComponent parentComponent,
+            boolean setAsMenuForParentComponent) {
+
+        innerMenubar = new MenuBar();
+        rootItem = innerMenubar.addItem("");
+        // todo
+        extend(parentComponent);
+
+        // todo enable registerRpc(new ContextMenuServerRpc() {
+        // @Override
+        // public void itemClicked(int itemId, boolean menuClosed) {
+        // menu.itemClicked(itemId);
+        // }
+        // });
+        //
+        // todo enable if (setAsMenuForParentComponent) {
+        // setAsContextMenuOf(parentComponent);
+        // }
+    }
+
+    public void setAsContextMenuOf(
+            ContextClickEvent.ContextClickNotifier component) {
+        // todo
+    }
+
+    // Should these also be in MenuInterface and then throw exception for
+    // MenuBar?
+    public MenuItem addSeparator() {
+        return rootItem.addSeparator();
+    }
+
+    public MenuItem addSeparatorBefore(MenuItem itemToAddBefore) {
+        return rootItem.addSeparatorBefore(itemToAddBefore);
+    }
+
+    public MenuItem addItem(String caption, Command command) {
+        return rootItem.addItem(caption, command);
+    }
+
+    public MenuItem addItem(String caption, Resource icon, Command command) {
+        return rootItem.addItem(caption, icon, command);
+    }
+
+    public MenuItem addItemBefore(String caption, Resource icon,
+            Command command, MenuItem itemToAddBefore) {
+        return rootItem.addItemBefore(caption, icon, command, itemToAddBefore);
+    }
+
+    public List<MenuItem> getItems() {
+        return rootItem.getChildren();
+    }
+
+    public void removeItem(MenuItem item) {
+        rootItem.removeChild(item);
+
+    }
+
+    public void removeItems() {
+        rootItem.removeChildren();
+    }
+
+    public int getSize() {
+        return rootItem.getSize();
+    }
+
+    public boolean isHtmlContentAllowed() {
+        return innerMenubar.isHtmlContentAllowed();
+    }
+
+    public void setHtmlContentAllowed(boolean htmlContentAllowed) {
+        innerMenubar.setHtmlContentAllowed(true);
+    }
+
+    public Registration addContextMenuOpenListener(
+            ContextMenuOpenListener contextMenuOpenListener) {
+        // todo
+        return null;
+
+    }
+
+    public interface ContextMenuOpenListener
+            extends EventListener, Serializable {
+
+        public static final Method MENU_OPENED = ReflectTools.findMethod(
+                ContextMenuOpenListener.class, "onContextMenuOpen",
+                ContextMenuOpenEvent.class);
+
+        public void onContextMenuOpen(ContextMenuOpenEvent event);
+
+        public static class ContextMenuOpenEvent extends EventObject {
+            private final ContextMenu contextMenu;
+
+            private final int x;
+            private final int y;
+
+            private ContextClickEvent contextClickEvent;
+
+            public ContextMenuOpenEvent(ContextMenu contextMenu,
+                    ContextClickEvent contextClickEvent) {
+                super(contextClickEvent.getComponent());
+
+                this.contextMenu = contextMenu;
+                this.contextClickEvent = contextClickEvent;
+                x = contextClickEvent.getClientX();
+                y = contextClickEvent.getClientY();
+            }
+
+            /**
+             * @return ContextMenu that was opened.
+             */
+            public ContextMenu getContextMenu() {
+                return contextMenu;
+            }
+
+            /**
+             * @return Component which initiated the context menu open request.
+             */
+            public Component getSourceComponent() {
+                return (Component) getSource();
+            }
+
+            /**
+             * @return x-coordinate of open position.
+             */
+            public int getX() {
+                return x;
+            }
+
+            /**
+             * @return y-coordinate of open position.
+             */
+            public int getY() {
+                return y;
+            }
+
+            public ContextClickEvent getContextClickEvent() {
+                return contextClickEvent;
+            }
+        }
+    }
 }
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextmenuUI.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextmenuUI.java
deleted file mode 100644
index e69de29bb2..0000000000
--- a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/ContextmenuUI.java
+++ /dev/null
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/GridContextMenu.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/GridContextMenu.java
new file mode 100644
index 0000000000..66442ab48d
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/GridContextMenu.java
@@ -0,0 +1,95 @@
+package com.vaadin.tests.widgetset.contextmenu;
+
+import java.io.Serializable;
+import java.util.EventListener;
+
+import com.vaadin.shared.ui.grid.GridConstants.Section;
+import com.vaadin.tests.widgetset.contextmenu.ContextMenu.ContextMenuOpenListener.ContextMenuOpenEvent;
+import com.vaadin.tests.widgetset.contextmenu.GridContextMenu.GridContextMenuOpenListener.GridContextMenuOpenEvent;
+import com.vaadin.ui.Grid;
+import com.vaadin.ui.Grid.Column;
+import com.vaadin.ui.Grid.GridContextClickEvent;
+
+@SuppressWarnings("serial")
+public class GridContextMenu<T> extends ContextMenu {
+
+    public GridContextMenu(Grid<T> parentComponent) {
+        super(parentComponent, true);
+    }
+
+    private void addGridSectionContextMenuListener(final Section section,
+            final GridContextMenuOpenListener<T> listener) {
+        addContextMenuOpenListener((final ContextMenuOpenEvent event) -> {
+            if (event.getContextClickEvent() instanceof GridContextClickEvent) {
+                @SuppressWarnings("unchecked")
+                GridContextClickEvent<T> gridEvent = (GridContextClickEvent<T>) event
+                        .getContextClickEvent();
+                if (gridEvent.getSection() == section) {
+                    listener.onContextMenuOpen(new GridContextMenuOpenEvent<>(
+                            GridContextMenu.this, gridEvent));
+                }
+            }
+        });
+    }
+
+    public void addGridHeaderContextMenuListener(
+            GridContextMenuOpenListener<T> listener) {
+        addGridSectionContextMenuListener(Section.HEADER, listener);
+    }
+
+    public void addGridFooterContextMenuListener(
+            GridContextMenuOpenListener<T> listener) {
+        addGridSectionContextMenuListener(Section.FOOTER, listener);
+    }
+
+    public void addGridBodyContextMenuListener(
+            GridContextMenuOpenListener<T> listener) {
+        addGridSectionContextMenuListener(Section.BODY, listener);
+    }
+
+    public interface GridContextMenuOpenListener<T>
+            extends EventListener, Serializable {
+
+        public void onContextMenuOpen(GridContextMenuOpenEvent<T> event);
+
+        public static class GridContextMenuOpenEvent<T>
+                extends ContextMenuOpenEvent {
+
+            private final T item;
+            private final Grid<T> component;
+            private final int rowIndex;
+            private final Column<T, ?> column;
+            private final Section section;
+
+            public GridContextMenuOpenEvent(ContextMenu contextMenu,
+                    GridContextClickEvent<T> contextClickEvent) {
+                super(contextMenu, contextClickEvent);
+                item = contextClickEvent.getItem();
+                component = contextClickEvent.getComponent();
+                rowIndex = contextClickEvent.getRowIndex();
+                column = contextClickEvent.getColumn();
+                section = contextClickEvent.getSection();
+            }
+
+            public T getItem() {
+                return item;
+            }
+
+            public Grid<T> getComponent() {
+                return component;
+            }
+
+            public int getRowIndex() {
+                return rowIndex;
+            }
+
+            public Column<T, ?> getColumn() {
+                return column;
+            }
+
+            public Section getSection() {
+                return section;
+            }
+        }
+    }
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/ContextmenuUI.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/ContextmenuUI.java
new file mode 100644
index 0000000000..d614b4ff82
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/ContextmenuUI.java
@@ -0,0 +1,99 @@
+package com.vaadin.tests.widgetset.contextmenu.demo;
+
+import com.vaadin.annotations.Theme;
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.icons.VaadinIcons;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.tests.widgetset.TestingWidgetSet;
+import com.vaadin.tests.widgetset.contextmenu.ContextMenu;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.MenuBar;
+import com.vaadin.ui.Notification;
+import com.vaadin.ui.VerticalLayout;
+
+@SuppressWarnings({ "serial", "unchecked" })
+@Theme("contextmenu")
+@Widgetset(TestingWidgetSet.NAME)
+
+public class ContextmenuUI extends AbstractTestUI {
+    Button but3 = new Button("remove Tooltip");
+
+    @Override
+    protected void setup(VaadinRequest request) {
+
+        final VerticalLayout layout = new VerticalLayout();
+        layout.setMargin(true);
+        setContent(layout);
+
+        Button button = new Button("Button 1");
+        layout.addComponent(button);
+
+        Button button2 = new Button("Button 2");
+        layout.addComponent(button2);
+
+        ContextMenu contextMenu = new ContextMenu(this, false);
+        fillMenu(contextMenu);
+
+        contextMenu.setAsContextMenuOf(button);
+        contextMenu.setAsContextMenuOf(button2);
+
+        contextMenu.addContextMenuOpenListener(
+                new ContextMenu.ContextMenuOpenListener() {
+                    @Override
+                    public void onContextMenuOpen(ContextMenuOpenEvent event) {
+                        Notification.show("Context menu on"
+                                + event.getSourceComponent().getCaption());
+                    }
+                });
+
+        layout.addComponent(new GridWithGenericListener());
+        layout.addComponent(new GridWithGridListener());
+        layout.addComponent(but3);
+        layout.addComponent(new Button("Remove items from context menu", e -> {
+            contextMenu.removeItems();
+        }));
+    }
+
+    private void fillMenu(ContextMenu menu) {
+        final MenuBar.MenuItem item = menu.addItem("Checkable", e -> {
+            Notification.show("checked: " + e.isChecked());
+        });
+        item.setCheckable(true);
+        item.setChecked(true);
+
+        MenuBar.MenuItem item2 = menu.addItem("Disabled", e -> {
+            Notification.show("disabled");
+        });
+        item2.setDescription("Disabled item");
+        item2.setEnabled(false);
+
+        MenuBar.MenuItem item3 = menu.addItem("Invisible", e -> {
+            Notification.show("invisible");
+        });
+        item3.setVisible(false);
+
+        if (menu instanceof ContextMenu) {
+            ((ContextMenu) menu).addSeparator();
+        }
+
+        MenuBar.MenuItem item4 = menu
+                .addItem("Icon + Description + <b>HTML</b>", e -> {
+                    Notification.show("icon");
+                });
+        item4.setIcon(VaadinIcons.ADJUST);
+        item4.setDescription("Test tooltip");
+        but3.addClickListener(e -> item4.setDescription(""));
+        MenuBar.MenuItem item5 = menu.addItem("Custom stylename", e -> {
+            Notification.show("stylename");
+        });
+        item5.setStyleName("teststyle");
+
+        MenuBar.MenuItem item6 = menu.addItem("Submenu", e -> {
+        });
+        item6.addItem("Subitem", e -> Notification.show("SubItem"));
+        item6.addSeparator();
+        item6.addItem("Subitem", e -> Notification.show("SubItem"))
+                .setDescription("Test");
+    }
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGenericListener.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGenericListener.java
new file mode 100644
index 0000000000..6f087d57ab
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGenericListener.java
@@ -0,0 +1,52 @@
+package com.vaadin.tests.widgetset.contextmenu.demo;
+
+import java.util.Collections;
+
+import com.vaadin.data.provider.ListDataProvider;
+import com.vaadin.tests.widgetset.contextmenu.ContextMenu;
+import com.vaadin.ui.Grid;
+import com.vaadin.ui.Notification;
+
+public class GridWithGenericListener extends Grid<String[]> {
+
+    private static final String FIRST_NAME = "First name";
+    private static final String LAST_NAME = "Last name";
+    private static final String SHOE_SIZE = "Shoe size";
+
+    public GridWithGenericListener() {
+        setCaption("Grid with generic listener");
+
+        ContextMenu contextMenu2 = new ContextMenu(this, true);
+        setHeightByRows(3);
+        addColumn(arr -> arr[0]).setCaption(FIRST_NAME);
+        addColumn(arr -> arr[1]).setCaption(LAST_NAME);
+        addColumn(arr -> arr[2]).setCaption(SHOE_SIZE);
+
+        ListDataProvider<String[]> ds = new ListDataProvider<>(Collections
+                .singletonList(new String[] { "John", "Doe", "57" }));
+        setDataProvider(ds);
+        contextMenu2.addContextMenuOpenListener(this::onGenericContextMenu);
+    }
+
+    private void onGenericContextMenu(
+            ContextMenu.ContextMenuOpenListener.ContextMenuOpenEvent event) {
+        GridContextClickEvent<String[]> gridE = (GridContextClickEvent<String[]>) event
+                .getContextClickEvent();
+        ContextMenu menu = event.getContextMenu();
+        menu.removeItems();
+        if (gridE.getColumn() != null) {
+            menu.addItem(
+                    "Called from column " + gridE.getColumn().getCaption()
+                            + " on row " + gridE.getRowIndex(),
+                    f -> Notification.show("did something"));
+        } else if (gridE.getRowIndex() >= 0) {
+            menu.addItem("Called on row " + gridE.getRowIndex(),
+                    f -> Notification.show("did something"));
+        } else {
+            menu.addItem("Called on background",
+                    f -> Notification.show("did something"));
+
+        }
+    }
+
+}
diff --git a/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGridListener.java b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGridListener.java
new file mode 100644
index 0000000000..fdae470f07
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/widgetset/contextmenu/demo/GridWithGridListener.java
@@ -0,0 +1,53 @@
+package com.vaadin.tests.widgetset.contextmenu.demo;
+
+import java.util.Collections;
+
+import com.vaadin.data.provider.ListDataProvider;
+import com.vaadin.tests.widgetset.contextmenu.GridContextMenu;
+import com.vaadin.ui.Grid;
+
+public class GridWithGridListener extends Grid<String[]> {
+
+    public GridWithGridListener() {
+        setCaption("Grid with Grid specific listener");
+        setHeightByRows(3);
+        final GridContextMenu<String[]> gridContextMenu = new GridContextMenu<>(
+                this);
+
+        addColumn(arr -> arr[0]).setCaption("Column 1(right-click here)");
+        addColumn(arr -> arr[1]).setCaption("Column 2(right-click here)");
+
+        final ListDataProvider<String[]> dataSource = new ListDataProvider<>(
+                Collections.singletonList(new String[] { "foo", "bar" }));
+        setDataProvider(dataSource);
+        gridContextMenu.addGridHeaderContextMenuListener(e -> {
+            gridContextMenu.removeItems();
+            gridContextMenu.addItem(getText(e), null);
+        });
+
+        gridContextMenu.addGridBodyContextMenuListener(e -> {
+            gridContextMenu.removeItems();
+            gridContextMenu.addItem(getText(e), null);
+        });
+
+    }
+
+    private static String getText(
+            final GridContextMenu.GridContextMenuOpenListener.GridContextMenuOpenEvent<String[]> e) {
+
+        final Column<String[], ?> column = e.getColumn();
+        final String columnText;
+        if (column != null) {
+            columnText = "'" + column.getCaption() + "'";
+        } else {
+            columnText = "'?'";
+        }
+        final String gridCaption = e.getComponent() == null ? "(NULL)"
+                : e.getComponent().getCaption();
+
+        return "Context menu for " + e.getSection() + ", column: " + columnText
+                + ", gridCaption: " + gridCaption;
+
+    }
+
+}