Initial import of TypedGrid component

This patch introduces a generics version of Grid.

Change-Id: I0777a0468ccb5f38e266aa0f33ceb8d0324d72dd

11 files changed, 721 insertions, 0 deletions

diff --git a/client/src/com/vaadin/client/connectors/proto/AbstractTypedGridExtensionConnector.java b/client/src/com/vaadin/client/connectors/proto/AbstractTypedGridExtensionConnector.java
new file mode 100644
index 0000000000..4c590fbb5d
--- /dev/null
+++ b/client/src/com/vaadin/client/connectors/proto/AbstractTypedGridExtensionConnector.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.client.connectors.proto;
+
+import com.vaadin.client.extensions.AbstractExtensionConnector;
+
+/**
+ * Base connector class for AbstractTypedGridExtensions. This class provides
+ * helpers to ease the use of TypedGrid client-side in extension connectors.
+ * 
+ * @since
+ */
+public abstract class AbstractTypedGridExtensionConnector extends
+        AbstractExtensionConnector {
+
+    @Override
+    public TypedGridConnector getParent() {
+        return (TypedGridConnector) super.getParent();
+    }
+}
diff --git a/client/src/com/vaadin/client/connectors/proto/TypedGridColumnConnector.java b/client/src/com/vaadin/client/connectors/proto/TypedGridColumnConnector.java
new file mode 100644
index 0000000000..00a7da8925
--- /dev/null
+++ b/client/src/com/vaadin/client/connectors/proto/TypedGridColumnConnector.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.client.connectors.proto;
+
+import com.vaadin.client.ServerConnector;
+import com.vaadin.client.widgets.Grid.Column;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.shared.ui.grid.GridState;
+import com.vaadin.shared.ui.proto.TypedGridColumnState;
+
+import elemental.json.JsonObject;
+
+/**
+ * Connector implementation for TypedGrid Columns.
+ * 
+ * @since
+ */
+@Connect(com.vaadin.ui.proto.Column.class)
+public class TypedGridColumnConnector extends
+        AbstractTypedGridExtensionConnector {
+
+    /* This is stored so it can be used in onUnregister */
+    private TypedGridConnector parent;
+
+    @Override
+    protected void extend(ServerConnector target) {
+        parent = getParent();
+        parent.addColumn(getState().id, new Column<String, JsonObject>() {
+            @Override
+            public String getValue(JsonObject row) {
+                return row.getObject(GridState.JSONKEY_DATA).getString(
+                        getState().id);
+            }
+        });
+    }
+
+    @Override
+    public void onUnregister() {
+        super.onUnregister();
+
+        parent.removeColumn(getState().id);
+    }
+
+    @Override
+    public TypedGridColumnState getState() {
+        return (TypedGridColumnState) super.getState();
+    }
+
+}
diff --git a/client/src/com/vaadin/client/connectors/proto/TypedGridConnector.java b/client/src/com/vaadin/client/connectors/proto/TypedGridConnector.java
new file mode 100644
index 0000000000..41f6cfccd1
--- /dev/null
+++ b/client/src/com/vaadin/client/connectors/proto/TypedGridConnector.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.client.connectors.proto;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.vaadin.client.connectors.GridConnector;
+import com.vaadin.client.data.DataSource;
+import com.vaadin.client.data.HasDataSource;
+import com.vaadin.client.ui.AbstractComponentConnector;
+import com.vaadin.client.ui.SimpleManagedLayout;
+import com.vaadin.client.widget.grid.selection.SelectionEvent;
+import com.vaadin.client.widget.grid.selection.SelectionHandler;
+import com.vaadin.client.widgets.Grid;
+import com.vaadin.client.widgets.Grid.Column;
+import com.vaadin.shared.data.DataProviderConstants;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.shared.ui.proto.TypedGridClientRpc;
+import com.vaadin.shared.ui.proto.TypedGridServerRpc;
+import com.vaadin.shared.ui.proto.TypedGridState;
+import com.vaadin.shared.util.SharedUtil;
+
+import elemental.json.JsonObject;
+
+/**
+ * Connector implementation for TypedGrid. Uses {@link Grid} as its widget, just
+ * like {@link GridConnector}.
+ * 
+ * @since
+ */
+@Connect(com.vaadin.ui.proto.TypedGrid.class)
+public class TypedGridConnector extends AbstractComponentConnector implements
+        SimpleManagedLayout, HasDataSource {
+
+    private Map<String, Column<?, JsonObject>> columnMap = new HashMap<String, Column<?, JsonObject>>();
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public Grid<JsonObject> getWidget() {
+        return (Grid<JsonObject>) super.getWidget();
+    }
+
+    @Override
+    public TypedGridState getState() {
+        return (TypedGridState) super.getState();
+    }
+
+    @Override
+    protected void init() {
+        super.init();
+
+        registerRpc(TypedGridClientRpc.class, new TypedGridClientRpc() {
+
+            @Override
+            public void setColumnOrder(String[] columnOrder) {
+                if (columnOrder.length == 0) {
+                    return;
+                }
+
+                List<Column<?, JsonObject>> columns = new ArrayList<Column<?, JsonObject>>(
+                        columnOrder.length);
+                for (String key : columnOrder) {
+                    if (columnMap.containsKey(key)) {
+                        columns.add(columnMap.get(key));
+                    }
+                }
+                Column<?, JsonObject>[] c = new Column[] {};
+                getWidget().setColumnOrder(columns.toArray(c));
+            }
+        });
+
+        getWidget().addSelectionHandler(new SelectionHandler<JsonObject>() {
+
+            @Override
+            public void onSelect(SelectionEvent<JsonObject> event) {
+                String key = null;
+                if (!event.getSelected().isEmpty()) {
+                    key = event.getSelected().iterator().next()
+                            .getString(DataProviderConstants.KEY);
+                }
+                getRpcProxy(TypedGridServerRpc.class).setSelected(key);
+            }
+        });
+    }
+
+    public void addColumn(String key, Column<?, JsonObject> column) {
+        // TODO: Remove this when header support is implemented
+        getWidget().addColumn(column).setHeaderCaption(
+                SharedUtil.propertyIdToHumanFriendly(key));
+
+        columnMap.put(key, column);
+    }
+
+    public void removeColumn(String key) {
+        if (columnMap.containsKey(key)) {
+            getWidget().removeColumn(columnMap.remove(key));
+        }
+    }
+
+    @Override
+    public void setDataSource(DataSource<JsonObject> ds) {
+        getWidget().setDataSource(ds);
+    }
+
+    @Override
+    public void layout() {
+        getWidget().onResize();
+    }
+}
diff --git a/server/src/com/vaadin/ui/proto/Column.java b/server/src/com/vaadin/ui/proto/Column.java
new file mode 100644
index 0000000000..10a1b93ec4
--- /dev/null
+++ b/server/src/com/vaadin/ui/proto/Column.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.ui.proto;
+
+import com.vaadin.server.communication.data.typed.TypedDataGenerator;
+import com.vaadin.shared.ui.grid.GridState;
+import com.vaadin.shared.ui.proto.TypedGridColumnState;
+import com.vaadin.ui.proto.TypedGrid.AbstractTypedGridExtension;
+
+import elemental.json.Json;
+import elemental.json.JsonObject;
+
+/**
+ * Grid Column.
+ * 
+ * @param <T>
+ *            grid data type
+ * @param <V>
+ *            column value type
+ */
+public class Column<T, V> extends AbstractTypedGridExtension<T> implements
+        TypedDataGenerator<T> {
+
+    private ValueProvider<T, V> valueProvider;
+
+    Column(TypedGrid<T> grid, String id, Class<V> valueType,
+            ValueProvider<T, V> valueProvider) {
+        super(grid);
+        getState().id = id;
+        this.valueProvider = valueProvider;
+        // TODO: determine renderer from valueType
+    }
+
+    @Override
+    protected TypedGridColumnState getState() {
+        return (TypedGridColumnState) super.getState();
+    }
+
+    @Override
+    public void generateData(T data, JsonObject jsonObject) {
+        JsonObject dataObject;
+        if (!jsonObject.hasKey(GridState.JSONKEY_DATA)) {
+            jsonObject.put(GridState.JSONKEY_DATA, Json.createObject());
+        }
+        dataObject = jsonObject.getObject(GridState.JSONKEY_DATA);
+
+        V value = valueProvider.getValue(data);
+        dataObject.put(getState().id, value != null ? value.toString() : "");
+    }
+
+    @Override
+    public void destroyData(T data) {
+    }
+}
diff --git a/server/src/com/vaadin/ui/proto/TypedGrid.java b/server/src/com/vaadin/ui/proto/TypedGrid.java
new file mode 100644
index 0000000000..a2d86e19aa
--- /dev/null
+++ b/server/src/com/vaadin/ui/proto/TypedGrid.java
@@ -0,0 +1,275 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.ui.proto;
+
+import java.beans.IntrospectionException;
+import java.beans.PropertyDescriptor;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.EventObject;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import com.vaadin.data.util.BeanUtil;
+import com.vaadin.server.AbstractExtension;
+import com.vaadin.server.Extension;
+import com.vaadin.server.communication.data.typed.CollectionDataSource;
+import com.vaadin.server.communication.data.typed.DataProvider;
+import com.vaadin.server.communication.data.typed.DataSource;
+import com.vaadin.server.communication.data.typed.TypedDataGenerator;
+import com.vaadin.shared.ui.proto.TypedGridClientRpc;
+import com.vaadin.shared.ui.proto.TypedGridServerRpc;
+import com.vaadin.shared.ui.proto.TypedGridState;
+import com.vaadin.ui.AbstractComponent;
+
+/**
+ * A typed version of the Grid component. This TypedGrid is using the new typed
+ * data system.
+ * <p>
+ * Note: This component does not yet provide all original Grid features.
+ * 
+ * @since
+ * @param <T>
+ *            type of data objects stored in this grid, e.g. Person bean
+ */
+public class TypedGrid<T> extends AbstractComponent {
+
+    // TODO: Refactor this to use some common "Select" API and extract it from
+    // TypedGrid
+    public static class SelectEvent<T> extends EventObject {
+
+        private final T selected;
+        private final TypedGrid<T> component;
+
+        SelectEvent(TypedGrid<T> source, T selected) {
+            super(source);
+            component = source;
+            this.selected = selected;
+        }
+
+        @Override
+        public TypedGrid<T> getSource() {
+            return component;
+        }
+
+        public T getSelected() {
+            return selected;
+        }
+
+    }
+
+    // TODO: Extract from TypedGrid when extracting the SelectEvent
+    public static interface SelectionListener<T> extends Serializable {
+        void select(SelectEvent<T> select);
+    }
+
+    public abstract static class AbstractTypedGridExtension<T> extends
+            AbstractExtension {
+        public AbstractTypedGridExtension(TypedGrid<T> grid) {
+            super(grid);
+        }
+    }
+
+    private T selected;
+
+    private final Map<String, Column<T, ?>> columns = new HashMap<String, Column<T, ?>>();
+    private final Set<SelectionListener<T>> listeners = new HashSet<SelectionListener<T>>();
+    private DataProvider<T> dp;
+
+    /**
+     * Constructs a new empty Grid.
+     */
+    public TypedGrid() {
+        this(new ArrayList<T>());
+    }
+
+    /**
+     * Constructs a new Grid using the data from given collection.
+     * 
+     * @param data
+     *            collection of data
+     */
+    public TypedGrid(Collection<T> data) {
+        this(new CollectionDataSource<T>(data));
+    }
+
+    /**
+     * Constructs a new Grid using the given data source.
+     * 
+     * @param data
+     *            data source to use
+     */
+    public TypedGrid(DataSource<T> data) {
+        internalSetDataSource(data);
+        init();
+        setSizeFull();
+    }
+
+    /**
+     * Constructs a new Grid using the given data source.
+     * <p>
+     * This constructor uses the given class parameter to autodetect the columns
+     * needed to display the data.
+     * 
+     * @param cls
+     *            data type class
+     * @param data
+     *            data source to use
+     */
+    public TypedGrid(Class<T> cls, DataSource<T> data) {
+        this(data);
+        autodetectColumns(cls);
+    }
+
+    /**
+     * Constructs a new Grid using the data from given collection.
+     * <p>
+     * This constructor uses the given class parameter to autodetect the columns
+     * needed to display the data.
+     * 
+     * @param cls
+     *            data type class
+     * @param data
+     *            collection of data
+     */
+    public TypedGrid(Class<T> cls, Collection<T> data) {
+        this(cls, new CollectionDataSource<T>(data));
+    }
+
+    public void setDataSource(DataSource<T> data) {
+        internalSetDataSource(data);
+    }
+
+    public void setDataSource(Collection<T> data) {
+        internalSetDataSource(new CollectionDataSource<T>(data));
+    }
+
+    protected void init() {
+        registerRpc(new TypedGridServerRpc() {
+
+            @Override
+            public void setSelected(String rowKey) {
+                if (rowKey != null && !rowKey.isEmpty()) {
+                    selected = dp.getKeyMapper().get(rowKey);
+                } else {
+                    selected = null;
+                }
+                fireSelectionEvent(selected);
+            }
+        });
+    }
+
+    private void internalSetDataSource(DataSource<T> data) {
+        if (dp != null) {
+            dp.remove();
+        }
+
+        dp = DataProvider.create(data, this);
+    }
+
+    private void autodetectColumns(Class<T> cls) {
+        List<PropertyDescriptor> props;
+        try {
+            props = BeanUtil.getBeanPropertyDescriptor(cls);
+            for (final PropertyDescriptor p : props) {
+                if (p.getName().equals("class")) {
+                    continue;
+                }
+
+                addColumn(p.getName(), (Class<Object>) p.getPropertyType(),
+                        new ValueProvider<T, Object>() {
+
+                            @Override
+                            public Object getValue(T data) {
+                                try {
+                                    return p.getReadMethod().invoke(data);
+                                } catch (Exception e) {
+                                    // TODO: Improve exception handling
+                                    return null;
+                                }
+                            }
+                        });
+            }
+        } catch (IntrospectionException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    public <V> Column<T, V> addColumn(String name, Class<V> valueType,
+            ValueProvider<T, V> valueProvider) {
+        Column<T, V> column = new Column<T, V>(this, name, valueType,
+                valueProvider);
+        columns.put(name, column);
+        return column;
+    }
+
+    public void removeColumn(String colName) {
+        if (columns.containsKey(colName)) {
+            columns.remove(colName).remove();
+        }
+    }
+
+    public void setColumnOrder(String... columns) {
+        getRpcProxy(TypedGridClientRpc.class).setColumnOrder(columns);
+    }
+
+    @Override
+    protected TypedGridState getState() {
+        return (TypedGridState) super.getState();
+    }
+
+    @Override
+    protected void addExtension(Extension extension) {
+        super.addExtension(extension);
+
+        if (extension instanceof TypedDataGenerator) {
+            dp.addDataGenerator((TypedDataGenerator<T>) extension);
+        }
+    }
+
+    @Override
+    public void removeExtension(Extension extension) {
+        super.removeExtension(extension);
+
+        if (extension instanceof TypedDataGenerator) {
+            dp.removeDataGenerator((TypedDataGenerator<T>) extension);
+        }
+    }
+
+    public void addSelectionListener(SelectionListener<T> listener) {
+        listeners.add(listener);
+    }
+
+    public void removeSelectionListener(SelectionListener<T> listener) {
+        listeners.remove(listener);
+    }
+
+    protected void fireSelectionEvent(T selected) {
+        List<SelectionListener<T>> set = new ArrayList<SelectionListener<T>>(
+                listeners);
+        for (SelectionListener<T> l : set) {
+            l.select(new SelectEvent<T>(this, selected));
+        }
+    }
+
+    public T getSelected() {
+        return selected;
+    }
+}
\ No newline at end of file
diff --git a/server/src/com/vaadin/ui/proto/ValueProvider.java b/server/src/com/vaadin/ui/proto/ValueProvider.java
new file mode 100644
index 0000000000..edc45f7392
--- /dev/null
+++ b/server/src/com/vaadin/ui/proto/ValueProvider.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.ui.proto;
+
+import java.io.Serializable;
+
+public interface ValueProvider<T, V> extends Serializable {
+    V getValue(T data);
+}
diff --git a/shared/src/com/vaadin/shared/ui/proto/TypedGridClientRpc.java b/shared/src/com/vaadin/shared/ui/proto/TypedGridClientRpc.java
new file mode 100644
index 0000000000..4fcec759bf
--- /dev/null
+++ b/shared/src/com/vaadin/shared/ui/proto/TypedGridClientRpc.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.proto;
+
+import com.vaadin.shared.communication.ClientRpc;
+
+public interface TypedGridClientRpc extends ClientRpc {
+
+    void setColumnOrder(String[] columnOrder);
+
+}
diff --git a/shared/src/com/vaadin/shared/ui/proto/TypedGridColumnState.java b/shared/src/com/vaadin/shared/ui/proto/TypedGridColumnState.java
new file mode 100644
index 0000000000..26b229f793
--- /dev/null
+++ b/shared/src/com/vaadin/shared/ui/proto/TypedGridColumnState.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.proto;
+
+import com.vaadin.shared.communication.SharedState;
+
+public class TypedGridColumnState extends SharedState {
+
+    public String id;
+
+}
diff --git a/shared/src/com/vaadin/shared/ui/proto/TypedGridServerRpc.java b/shared/src/com/vaadin/shared/ui/proto/TypedGridServerRpc.java
new file mode 100644
index 0000000000..467422c743
--- /dev/null
+++ b/shared/src/com/vaadin/shared/ui/proto/TypedGridServerRpc.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.proto;
+
+import com.vaadin.shared.communication.ServerRpc;
+
+public interface TypedGridServerRpc extends ServerRpc {
+
+    void setSelected(String rowKey);
+}
diff --git a/shared/src/com/vaadin/shared/ui/proto/TypedGridState.java b/shared/src/com/vaadin/shared/ui/proto/TypedGridState.java
new file mode 100644
index 0000000000..9fe8260462
--- /dev/null
+++ b/shared/src/com/vaadin/shared/ui/proto/TypedGridState.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.proto;
+
+import com.vaadin.shared.AbstractComponentState;
+
+public class TypedGridState extends AbstractComponentState {
+}
diff --git a/uitest/src/com/vaadin/tests/proto/TypedGridUI.java b/uitest/src/com/vaadin/tests/proto/TypedGridUI.java
new file mode 100644
index 0000000000..41eaa6c71e
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/proto/TypedGridUI.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.proto;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Random;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.tests.fieldgroup.ComplexPerson;
+import com.vaadin.ui.proto.TypedGrid;
+
+public class TypedGridUI extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        addComponent(new TypedGrid<ComplexPerson>(ComplexPerson.class,
+                createPersons(100)));
+    }
+
+    private static Collection<ComplexPerson> createPersons(int count) {
+        Random r = new Random(1337);
+        List<ComplexPerson> list = new ArrayList<ComplexPerson>();
+        for (int i = 0; i < count; ++i) {
+            list.add(ComplexPerson.create(r));
+        }
+        return list;
+    }
+
+}