Add MouseEnter & MouseMove Event in PopupCloser

This commit adds MouseEnter and MouseMove event in the PopupCloser, as
Edge browser can only react to mouse movements and not mouse clicks.
This also makes the beahviour of PopupCloser consistent with
AbstractHoverInformationControl:Closer.

fixes eclipse-platform/eclipse.platform.swt#2072

Author: amartya4256

bundles/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/PopupCloser.java

@@ -109,6 +109,9 @@ public void install(ContentAssistant contentAssistant, Table table, AdditionalIn
 
 			fDisplay.addFilter(SWT.Deactivate, this);
 			fDisplay.addFilter(SWT.MouseUp, this);
+
+			fDisplay.addFilter(SWT.MouseMove, this);
+			fDisplay.addFilter(SWT.MouseEnter, this);
 		}
 	}
 
@@ -130,6 +133,9 @@ public void uninstall() {
 
 			fDisplay.removeFilter(SWT.Deactivate, this);
 			fDisplay.removeFilter(SWT.MouseUp, this);
+
+			fDisplay.removeFilter(SWT.MouseMove, this);
+			fDisplay.removeFilter(SWT.MouseEnter, this);
 		}
 	}
 
@@ -206,6 +212,8 @@ else if (event.type == SWT.MouseVerticalWheel)
 				}
 				break;
 
+			case SWT.MouseEnter:
+			case SWT.MouseMove:
 			case SWT.MouseUp:
 				if (fAdditionalInfoController == null || fAdditionalInfoController.getInternalAccessor().isReplaceInProgress())
 					break;
@@ -224,7 +232,7 @@ else if (event.type == SWT.MouseVerticalWheel)
 							}
 
 							// XXX: workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212392 :
-							control.getShell().getDisplay().asyncExec(() -> fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true));
+							fAdditionalInfoController.getInternalAccessor().replaceInformationControl(event.type == SWT.MouseUp);
 						}
 					}
 				}

bundles/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/TextEditorMessages.properties

@@ -12,7 +12,7 @@
 #     IBM Corporation - initial API and implementation
 ###############################################################################
 
-EditorsPlugin_additionalInfo_affordance=Press 'Tab' from proposal table or click for focus
+EditorsPlugin_additionalInfo_affordance=Press 'Tab' from proposal table or click/hover for focus
 EditorsPlugin_internal_error=Internal Error
 
 TextEditorPreferencePage_displayedTabWidth=Displayed &tab width: