Bug 125012 [Field Assist] Clarify lifecycle of the ILabelProvider used by ContentProposalAdapter
I20060119-0800 Clients who want to port their field content assistants from jface.text.contentassist to jface.fieldassist would expect to be able to supply an image in IContentProposal, e.g. with a 'Image getImage();' method as in ICompletionProposal. Without icons, e.g. proposals for java type names would look quite different from the ones you get in the java editor. There's also a lot more functionality in ICompletionProposal and the 4 ICompletionProposalExtension* interfaces. Some of those concepts must also be supported in fieldassist if clients such as the Find/Replace dialog and Java type completions in dialogs should switch (e.g. the additionalProposalInfo to show documentation for regex proposals, etc.). I can file separate bugs for these functionalities if you want to discuss them one by one.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
/*
		 * The listener we will install on the target control.
		 */
		private final class TargetControlListener implements Listener {
			
			public void handleEvent(Event e) {
				if (!isValid())
					return;
				
				
				
				if (!(e.type == SWT.KeyDown || e.type == SWT.Traverse)) {
					close();
					return;
				}
				
				
				
				if (e.type == SWT.Traverse) {
					e.detail = SWT.TRAVERSE_NONE;
					e.doit = true;
				}
				char key = e.character;
				
				if (key == 0) {
					int newSelection = proposalTable.getSelectionIndex();
					int visibleRows = (proposalTable.getSize().y / proposalTable