Create drag source and drop target extensions for tree grid (#9463)

Resolves #9372

3 files changed, 115 insertions, 0 deletions

diff --git a/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDragSourceState.java b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDragSourceState.java
new file mode 100644
index 0000000000..f3ea4cf900
--- /dev/null
+++ b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDragSourceState.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2000-2016 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.treegrid;
+
+import com.vaadin.shared.ui.grid.GridDragSourceState;
+
+/**
+ * State class containing parameters for TreeGridDragSource.
+ *
+ * @author Vaadin Ltd
+ * @since 8.1
+ */
+public class TreeGridDragSourceState extends GridDragSourceState {
+
+}
diff --git a/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetRpc.java b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetRpc.java
new file mode 100644
index 0000000000..0ce81c80dd
--- /dev/null
+++ b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetRpc.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2000-2016 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.treegrid;
+
+import java.util.List;
+import java.util.Map;
+
+import com.vaadin.shared.MouseEventDetails;
+import com.vaadin.shared.communication.ServerRpc;
+import com.vaadin.shared.ui.grid.DropLocation;
+
+/**
+ * RPC for firing server side drop event when client side drop event happens on
+ * drop target TreeGrid.
+ *
+ * @author Vaadin Ltd.
+ * @since 8.1
+ */
+public interface TreeGridDropTargetRpc extends ServerRpc {
+
+    /**
+     * Called when drop event happens on client side.
+     *
+     * @param types
+     *         list of data types from {@code DataTransfer.types} object
+     * @param data
+     *         map containing all types and corresponding data from the {@code
+     *         DataTransfer} object
+     * @param dropEffect
+     *         the desired drop effect
+     * @param rowKey
+     *         key of the row on which the drop event occurred
+     * @param depth
+     *         depth of the row in the hierarchy
+     * @param collapsed
+     *         whether the target row is collapsed
+     * @param dropLocation
+     *         location of the drop within the row
+     * @param mouseEventDetails
+     *         Mouse event details object containing information about the drop
+     *         event
+     */
+    public void drop(List<String> types, Map<String, String> data,
+            String dropEffect, String rowKey, Integer depth, Boolean collapsed,
+            DropLocation dropLocation, MouseEventDetails mouseEventDetails);
+}
diff --git a/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetState.java b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetState.java
new file mode 100644
index 0000000000..29fea79c98
--- /dev/null
+++ b/shared/src/main/java/com/vaadin/shared/ui/treegrid/TreeGridDropTargetState.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2000-2016 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.treegrid;
+
+import com.vaadin.shared.ui.grid.GridDropTargetState;
+
+/**
+ * State class containing parameters for TreeGridDropTarget.
+ *
+ * @author Vaadin Ltd
+ * @since 8.1
+ */
+public class TreeGridDropTargetState extends GridDropTargetState {
+
+}