511215: Make Favorites a central element

"Deselct all" action

Bug: 511215
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=511215

org.eclipse.epp.mpc.ui/src/org/eclipse/epp/internal/mpc/ui/wizards/MarketplacePage.java

@@ -156,6 +156,8 @@ private static void registerSearchControlIcons() {
 
 	private ActionLink selectionLink;
 
+	private ActionLink deselectLink;
+
 	private TabFolder tabFolder;
 
 	private TabItem searchTabItem;
@@ -691,20 +693,34 @@ private void updateSelectionLink() {
 					if (selectionLink != null) {
 						removeActionLink(selectionLink);
 						selectionLink = null;
+						removeActionLink(deselectLink);
+						deselectLink = null;
 					}
 				} else {
 					ActionLink newSelectionLink = createSelectionLink(text);
 					if (selectionLink != null) {
 						updateActionLink(selectionLink, newSelectionLink);
 					} else {
 						addActionLink(0, newSelectionLink);
+						deselectLink = createDeselectionLink();
+						addActionLink(1, deselectLink);
 					}
 					selectionLink = newSelectionLink;
 				}
 			}
 		}
 	}
 
+	private ActionLink createDeselectionLink() {
+		return new ActionLink("clearSelection", "Deselect all", "Clear selected items") {
+
+			@Override
+			public void selected() {
+				deselectionLinkActivated();
+			}
+		};
+	}
+
 	private ActionLink createSelectionLink(String text) {
 		return new ActionLink("showSelection", text, Messages.MarketplacePage_showSelection) {
 
@@ -721,6 +737,12 @@ protected void selectionLinkActivated() {
 		setActiveTab(ContentType.SELECTION);
 	}
 
+	protected void deselectionLinkActivated() {
+		SelectionModel selectionModel = getWizard().getSelectionModel();
+		selectionModel.clear();
+		getWizard().updateSelection();
+	}
+
 	@Override
 	public IWizardPage getPreviousPage() {
 		return super.getPreviousPage();