Bug 148357 [Field Assist] - API - provide access for closing the proposal popup
I think that the field assist API needs more hooks to be customizable. For example : 1) There is no way to manually close/open the popup. Most of the times, this is the easier thing for a user to ask to implement his custom behaviour. 2) There is no way to intercept keystrokes/events directed to the field. 3) There is no way to control focus.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
return;
								}
								/*
								 * System.out.println(e);
								 * System.out.println(e.display.getFocusControl());
								 * System.out.println(e.display.getActiveShell());
								 */
								close();
							}
						}
					});
					return;
				}
				
				
				if (e.type == SWT.Selection) {
					scrollbarClicked = true;
					return;
				}
				
				close();
			}
			
			
			void installListeners() {
				
				proposalTable.addListener(SWT.FocusOut, this);
				ScrollBar scrollbar = proposalTable.getVerticalBar();
				if (scrollbar != null) {
					scrollbar.addListener(SWT.Selection, this);