Bug 250604 [FieldAssist] API - ContentProposalAdapter needs isShowing() method
Please implement a method ContentProposalAdapter.isShwoing(). The method should return a boolean whether the content assistant proposal popup is open or not.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
* 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);
				}
				
				getShell().addListener(SWT.Deactivate, this);