Added support for JSON PlainTextTransferable to charts and subscriptions
With these changes dragging JSON text using
org.simantics.ui.dnd.PlainTextTransfer on top of model browser charts
and subscriptions and also on a chart editor is now supported.
The dragged JSON data must be in the following format:
<pre>
{
"type" : "variable",
"uri" : "variable space URI to dragged entity",
"defaultPropertyUri" : "variable space URI to default referenced
property variable of the dragged entity"
}
</pre>
Only "type" and "defaultPropertyUri" keys are required.