[Gtk3] Bug: SWTException on Table.remove(...) for a row with focus #1606
Description
Describe the bug
SWTException on Table.remove(...) for a row with focus.
To Reproduce
A standalone SWT snippet to reproduce the behavior:
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class SwtBugSnippet {
public static void main( String[] args ) {
var display = Display.getDefault();
var shell = new Shell( display );
shell.setLayout( new GridLayout() );
var button = new Button( shell, SWT.PUSH );
button.setText( "GO" );
var table = new Table( shell, SWT.VIRTUAL );
var layoutData = new GridData( 300, 300 );
layoutData.grabExcessHorizontalSpace = layoutData.grabExcessVerticalSpace = true;
table.setLayoutData( layoutData );
table.setItemCount( 2 );
table.addListener( SWT.SetData, event -> {
var item = ( TableItem ) event.item;
item.setText( "Item #" + System.identityHashCode( item ) );
} );
shell.pack();
shell.open();
table.setFocus();
button.addListener( SWT.Selection, e -> {
table.clear( 0 );
table.remove( new int[] { 0 } );
} );
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
}
}Just press the "GO" button and the program terminates after printing this to stderr:
Exception in thread "main" org.eclipse.swt.SWTException: Widget is disposed
at org.eclipse.swt.SWT.error(SWT.java:4922)
at org.eclipse.swt.SWT.error(SWT.java:4837)
at org.eclipse.swt.SWT.error(SWT.java:4808)
at org.eclipse.swt.widgets.Widget.error(Widget.java:565)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:480)
at org.eclipse.swt.widgets.TableItem.setText(TableItem.java:1363)
at SwtBugSnippet.lambda$0(SwtBugSnippet.java:24)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5855)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1538)
at org.eclipse.swt.widgets.Table.checkData(Table.java:289)
at org.eclipse.swt.widgets.Table.cellDataProc(Table.java:227)
at org.eclipse.swt.widgets.Display.cellDataProc(Display.java:995)
at org.eclipse.swt.internal.gtk.GTK.gtk_list_store_remove(Native Method)
at org.eclipse.swt.widgets.Table.remove(Table.java:2772)
at SwtBugSnippet.lambda$1(SwtBugSnippet.java:34)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5855)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5065)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4517)
at SwtBugSnippet.main(SwtBugSnippet.java:38)
Expected behavior
The row should be successfully removed without errors.
Screenshots
Not applicable.
Environment:
- Select the platform(s) on which the behavior is seen:
-
- All OS
-
- Windows
-
- Linux
-
- macOS
-
Additional OS info (e.g. OS version, Linux Desktop, etc)
Os: Ubuntu 24.04.1 LTS
Xfce: 4.18
Gtk: 3.24.41
Swt: 4.967.8 -
JRE/JDK version
OpenJDK 64-Bit Server VM (build 17.0.12+7-Ubuntu-1ubuntu224.04, mixed mode, sharing)
Version since
at least since Swt 4.967.8
Workaround (or) Additional context
I will submit a pull request with a fix a little bit later.