Bug 310444 [LinkedResources] Drag and Drop dialogs not disabled when Linked Resources turned off
I20100425-2000 - on the 'Linked Resources' preference page, disable the checkbox => DND groups are still enabled (should be disabled) - click OK - drag a file from the OS to the Package Explorer, Resource Navigator,... => "File Operation" dialog is still shown (should not be shown and just make a copy). Selecting "Link to files" gives an error dialog after I clicked OK. Additional UI problems on the preference page: - groups don't use dialog font - missing vertical gap between checkbox and first DND group: The gap should have the same size as the gap between the second group and the "Path variables..." label. Currently, the visual clustering suggests that the checkbox only applies to the DND groups.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
}
	/**
	 * Creates a new operation initialized with a shell.
	 * 
	 * @param shell
	 *            parent shell for error dialogs
	 */
	public CopyFilesAndFoldersOperation(Shell shell) {
		messageShell = shell;
	}
	/**
	 * Returns whether this operation is able to perform on-the-fly
	 * auto-renaming of resources with name collisions.
	 * 
	 * @return <code>true</code> if auto-rename is supported, and
	 *         <code>false</code> otherwise
	 */
	protected boolean canPerformAutoRename() {
		return true;
	}
	/**
	 * Returns the message for querying deep copy/move of a linked resource.
	 * 
	 * @param source
	 *            resource the query is made for
	 * @return the deep query message
	 */
	protected String getDeepCheckQuestion(IResource source) {
		return NLS
				.bind(