Re: Using XDnD in extensions

  The best way to submit code/patches is via, will more likely be seen by the relevant 
devs then.


On 21/03/13 03:29, Joakim Soderlund wrote:

Seeing as what I wanted to do wasn't possible I created a patch which
extends the XDnD support in GNOME Shell. The patch allows for actors
to accept XDnD drops and retrieve information about them. You can find
the patch along with a simple extension demonstrating its usage at the
following URL:

The patch and extension was written for GNOME Shell 3.6.2. If there is
any interest in this I can try to make it work for the Git master as

Joakim Soderlund

On Mon, Mar 11, 2013 at 10:10 AM, Joakim Söderlund
<joakim soderlund gmail com> wrote:

Is there a way for extensions in GNOME Shell 3.6 to get information
about XDnD drops other than just mouse cursor positions? The following
code works fine for items from within GNOME Shell (such as application
icons), but I can't seem to get any useful information about files
dropped from Nautilus.

 * Drag and drop test.
const DndButton = new Lang.Class({
    Name: "DndButton",
    Extends: St.Button,

    _init: function() {

        this.set_label("[DROP STUFF HERE]");
        this.set_position(5, 30);
        this.set_background_color(new Clutter.Color({
            red: 0,
            blue: 0,
            green: 0,
            alpha: 150,

        this._delegate = this;


    handleDragOver: function(source, actor, x, y, time) {
        return DND.DragMotionResult.COPY_DROP;

    acceptDrop: function(source, actor, x, y, time) {
        this.set_label("[ACCEPTED " + time + "]");
        return true;

Also, although handleDragOver gets called for XDnD, returning
COPY_DROP seems to do nothing. The source parameter is assigned an
xdndHandler instance, but it doesn't seem to contain any useful

Joakim Söderlund
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