RFR: 8141391: DnD doesn't work for JFXPanel

[Prasanta Sadhukhan]

On Fri, 11 Jul 2025 16:21:39 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> modules/javafx.swing/src/main/java/com/sun/javafx/embed/swing/SwingDnD.java line 203:
>> 
>>> 201:                         javafx.embed.swing.JFXPanel jfxPanel = (javafx.embed.swing.JFXPanel)comp;
>>> 202: 
>>> 203:                         if (jfxPanel.getScene().getFocusOwner() instanceof javafx.scene.control.TextField tf) {
>> 
>> This cannot possibly work:
>> 
>> a) does not build
>> b) what if the drop target is not a TextField, but some other editable text component (a TextArea or a rich text editor of some sort)?
>
> Yes, this the wrong approach. The javafx.swing module does not (and should not) depend on javafx.controls. Drag and Drop is a scene graph operation and can be targeted to any node, even nodes that are not Controls.

a) Yes, couple of module-info file was changed but not pushed in
b) I could use TextInputControl or the parent

Any other suggestion as clearly we cannot use Scene.DragEvent return value?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1843#discussion_r2201278285