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[JFACE] MenuManager context menu has wrong parent when dragging a view outside the workbench [message #333167]

Thu, 27 November 2008 05:44

Eclipse User

Hello,

I needed to create dynamics context menu in my RCP application. I have
3 specialized MenuManagers already filled that i can use in different views.

My problem is that i have a TreeViewer and depending on the item
selected i set the good menu.

it looks like :

// create SWT menus
Menu1 = MenuManager1.createContextMenu(TreeViewer.getControl());
Menu2 = MenuManager2.createContextMenu(a TreeViewer.getControl());
Menu3 = MenuManager3.createContextMenu(a TreeViewer.getControl());

// call setMenu() to set the good menu depending on the item selected
TreeViewer.getControl().addMenuDetectListener(new MenuDetectListener() {
public void menuDetected(MenuDetectEvent e) {
if (selectedItem == 1) {
TreeViewer.getControl().setMenu(Menu1);
} else if (selectedItem == 2)
TreeViewer.getControl().setMenu(Menu2);
} else if (selectedItem == 3) {
TreeViewer.getControl().setMenu(Menu3);
}
}
});

The problem is when i drag the view outside the workbench, I get
java.lang.IllegalArgumentException: Widget has the wrong parent

because the setMenu(Control control) method look at the parent shell of
the control and it has changed because the dragged view is in a new shell.

Does anyone can explain me if i am doing it the wrong way ?

Thanks
Laurent.

Re: [JFACE] MenuManager context menu has wrong parent when dragging a view outside the workbench [message #333177 is a reply to message #333167]

Thu, 27 November 2008 14:21

Eclipse User

Please open a bug against
https://bugs.eclipse.org/bugs/enter_bug.cgi?product=Platform &component=UI

It might be that we're doing something wrong or that SWT doesn't
re-parent all child controls (menus do pass themselves up and register
against the shell, at least in GTK+)

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/ganymede/index.jsp?topic=/org.eclips e.platform.doc.isv/guide/workbench.htm

Re: [JFACE] MenuManager context menu has wrong parent when dragging a view outside the workbench [message #1847848 is a reply to message #333177]

Wed, 10 November 2021 06:34

Eclipse User

Is there a workaround? Because the issue is still present

[Updated on: Wed, 10 November 2021 06:34] by Moderator

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