wicket-dnd

A generic Drag&Drop framework for Wicket:

(see http://code.google.com/p/wicket-dnd for Wicket 1.4 and 1.5)

• operate on any markup element via selectors
• drag and drop between any Wicket components
• vertical, horizontal and hierarchical structured markup
• drag initiators (a.k.a. handles)
• common desktop metaphors with MOVE, COPY and LINK operations
• transfer types
• themeable
• works in Firefox, Safari, Chrome, Opera

See our live examples on http://wicket-dnd.appspot.com (beware - very slow!).

Themes

You have to add a theme (build-in or your own) to your component you want to enable for DnD, e.g.

container.add(new WindowsTheme());

Drag source

Enable a component as a source of drags:

container.add(new DragSource(Operation.MOVE) {
  public void onAfterDrop(AjaxRequestTarget target, Transfer transfer) {
    // remove transfer data
  }
}.drag("tr"));

In this example only a MOVE operation is allowed. Drags are initiated on <tr> tags.

Drop target

Enable a component as a target for drops:

container.add(new DropTarget(Operation.MOVE, Operation.COPY) {
  public void onDrop(AjaxRequestTarget target, Transfer transfer, Location location) {
    // add transfer data
  }
}.dropCenter("tr"));

In this example MOVE and COPY operations are allowed. Drops are performed on center of <tr> tags, the location holds a reference to the actual component and the anchor the transfer was dropped on.

Maven dependency

Releases are available on Maven central and OSS Sonatype.

<dependency>
  <groupId>com.github.svenmeier.wicket-dnd</groupId>
  <artifactId>wicket-dnd</artifactId>
  <version>0.6.0</version>
</dependency>

For snapshot releases you have to use the OSS Sonatype Snapshot repository:

<dependency>
  <groupId>com.github.svenmeier.wicket-dnd</groupId>
  <artifactId>wicket-dnd</artifactId>
  <version>0.6.1-SNAPSHOT</version>
</dependency>

<repository>
  <id>sonatype-snapshots</id>
  <url>https://oss.sonatype.org/content/repositories/snapshots</url>
  <snapshots>
    <enabled>true</enabled>
  </snapshots>		
</repository>