diff --git a/src/DragDropAction.vala b/src/DragDropAction.vala
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+++ b/src/DragDropAction.vala
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+//  
+//  Copyright (C) 2013 Tom Beckmann
+// 
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+// 
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+// 
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
+
+public enum DragDropActionType
+{
+	SOURCE = 0,
+	DESTINATION
+}
+
+public class DragDropAction : Clutter.Action
+{
+	public DragDropActionType drag_type { get; private set; }
+	public string drag_id { get; set; }
+	public Clutter.Actor handle { get; private set; }
+
+	Clutter.Actor? hovered = null;
+	bool clicked = false;
+	bool dragging = false;
+
+	/**
+	 * A drag has been started. You have to connect to this signal
+	 * @return A ClutterActor that serves as handle
+	 **/
+	public signal Clutter.Actor started ();
+
+	/**
+	 * A drag has been canceled. You may want to consider cleaning up
+	 * your handle.
+	 **/
+	public signal void canceled ();
+
+	/**
+	 * A drag action has successfully been finished.
+	 * @param actor The actor on which the drag finished
+	 **/
+	public signal void finished (Clutter.Actor actor);
+
+	/**
+	 * The destination has been crossed
+	 * @param hovered indicates whether the actor is now hovered or not
+	 **/
+	public signal void crossed (bool hovered);
+
+	/**
+	 * Create a new DragDropAction
+	 * @param type The type of this actor
+	 * @param id An ID that marks which sources can be dragged on 
+	 *     which destinations. It has to be the same for all actors that
+	 *     should be compatible with each other.
+	 **/
+	public DragDropAction (DragDropActionType type, string id)
+	{
+		drag_type = type;
+		drag_id = id;
+	}
+
+	~DragDropAction ()
+	{
+		if (actor != null)
+			release_actor (actor);
+	}
+
+	public override void set_actor (Clutter.Actor? new_actor)
+	{
+		if (actor != null) {
+			release_actor (actor);
+		}
+
+		if (new_actor != null) {
+			connect_actor (new_actor);
+		}
+
+		base.set_actor (new_actor);
+	}
+
+	void release_actor (Clutter.Actor actor)
+	{
+		if (drag_type == DragDropActionType.SOURCE) {
+			actor.button_press_event.disconnect (source_clicked);
+			actor.motion_event.disconnect (source_motion);
+		}
+	}
+
+	void connect_actor (Clutter.Actor actor)
+	{
+		if (drag_type == DragDropActionType.SOURCE) {
+			actor.button_press_event.connect (source_clicked);
+			actor.motion_event.connect (source_motion);
+		}
+	}
+
+	bool source_clicked (Clutter.ButtonEvent event)
+	{
+		if (event.button != 1)
+			return false;
+
+		clicked = true;
+		return true;
+	}
+
+	bool source_motion (Clutter.MotionEvent event)
+	{
+		if (!clicked)
+			return false;
+
+		handle = started ();
+		if (handle == null) {
+			critical ("No handle has been returned by the started signal, aborting drag.");
+			return false;
+		}
+
+		dragging = true;
+		clicked = false;
+		actor.get_stage ().captured_event.connect (follow_move);
+		return true;
+	}
+
+	bool follow_move (Clutter.Event event)
+	{
+		switch (event.get_type ()) {
+			case Clutter.EventType.KEY_PRESS:
+				if (event.get_key_code () == Clutter.Key.Escape) {
+					cancel ();
+				}
+				return true;
+			case Clutter.EventType.MOTION:
+				float x, y;
+				event.get_coords (out x, out y);
+				handle.x = x;
+				handle.y = y;
+
+				var actor = actor.get_stage ().get_actor_at_pos (Clutter.PickMode.REACTIVE, (int)x, (int)y);
+				DragDropAction action = null;
+				if (actor == null || (action = get_drag_drop_action (actor)) == null) {
+					if (hovered != null) {
+						get_drag_drop_action (hovered).crossed (false);
+						hovered = null;
+					}
+					return true;
+				}
+
+				if (hovered != null) {
+					get_drag_drop_action (hovered).crossed (false);
+				}
+
+				hovered = actor;
+				action.crossed (true);
+
+				return true;
+			case Clutter.EventType.BUTTON_RELEASE:
+				if (hovered != null) {
+					finish ();
+				} else {
+					cancel ();
+				}
+				return true;
+			case Clutter.EventType.ENTER:
+			case Clutter.EventType.LEAVE:
+				return true;
+		}
+
+		return false;
+	}
+
+	// returns a DragDropAction instance if this actor has one or null.
+	// It also checks if checks if it is a DESTINATION and if the id matches
+	DragDropAction? get_drag_drop_action (Clutter.Actor actor)
+	{
+		DragDropAction drop_action = null;
+
+		foreach (var action in actor.get_actions ()) {
+			if (action is DragDropAction) {
+				drop_action = action as DragDropAction;
+				if (drop_action.drag_type != DragDropActionType.DESTINATION || drop_action.drag_id != drag_id) {
+					drop_action = null;
+					continue;
+				}
+				return drop_action;
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Abort the drag
+	 **/
+	public void cancel ()
+	{
+		if (dragging) {
+			actor.get_stage ().captured_event.disconnect (follow_move);
+		}
+
+		canceled ();
+		dragging = false;
+	}
+
+	void finish ()
+	{
+		// make sure they reset the style or whatever they changed when hovered
+		get_drag_drop_action (hovered).crossed (false);
+
+		actor.get_stage ().captured_event.disconnect (follow_move);
+		finished (hovered);
+	}
+}
+