Bug 461342: Allow to remove items from Call Hierarchy view

Change-Id: I72dfa22b80a35839f21eb3e46e54774bae84aabe
Signed-off-by: Andrew Gvozdev <angvoz.dev@gmail.com>

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHMessages.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2014 Wind River Systems, Inc. and others.
+ * Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -34,6 +34,7 @@ public class CHMessages extends NLS {
 	public static String CHViewPart_PreviousReference_tooltip;
 	public static String CHViewPart_Refresh_label;
 	public static String CHViewPart_Refresh_tooltip;
+	public static String CHViewPart_RemoveFromView_label;
 	public static String CHViewPart_CopyCallHierarchy_label;
 	public static String CHViewPart_ShowCallees_label;
 	public static String CHViewPart_ShowCallees_tooltip;

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHMessages.properties

@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2006, 2014 Wind River Systems, Inc. and others.
+# Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
 # All rights reserved. This program and the accompanying materials
 # are made available under the terms of the Eclipse Public License v1.0
 # which accompanies this distribution, and is available at
@@ -34,6 +34,7 @@ CHViewPart_FocusOn_label=Focus On ''{0}''
 CHViewPart_Open_label=Open
 CHViewPart_Open_tooltip=Open
 CHViewPart_CopyCallHierarchy_label=Copy E&xpanded Hierarchy
+CHViewPart_RemoveFromView_label=Remove From View
 CHLabelProvider_matches=matches
 CHHistoryDropDownAction_ClearHistory_label=Clear History
 CHHistoryListAction_HistoryDialog_title=Call Hierarchy History

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHMultiDefNode.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2009 Wind River Systems, Inc. and others.
+ * Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -15,8 +15,6 @@ import java.util.Objects;
 import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.cdt.core.model.ITranslationUnit;
 
-import org.eclipse.cdt.internal.ui.util.CoreUtility;
-
 public class CHMultiDefNode extends CHNode {
 	private CHNode[] fChildren;
 

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHNode.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2009 Wind River Systems, Inc. and others.
+ * Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -23,8 +23,6 @@ import org.eclipse.cdt.core.model.IMacro;
 import org.eclipse.cdt.core.model.ITranslationUnit;
 import org.eclipse.cdt.core.model.IVariableDeclaration;
 
-import org.eclipse.cdt.internal.ui.util.CoreUtility;
-
 /**
  * Represents a node in the include browser
  */

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHRemoveFromView.java

@@ -0,0 +1,45 @@
+/*******************************************************************************
+ * Copyright (c) 2015, 2015 Andrew Gvozdev and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Andrew Gvozdev - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.callhierarchy;
+
+import org.eclipse.jface.action.Action;
+import org.eclipse.jface.viewers.ITreeSelection;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.ui.ISharedImages;
+import org.eclipse.ui.PlatformUI;
+
+/**
+ * Action to remove items from the C++ Call Hierarchy View.
+ */
+public class CHRemoveFromView extends Action {
+	private CHViewPart fView;
+
+	/**
+	 * Constructs a Remove From View action.
+	 * 
+	 * @param view the Call Hierarchy view
+	 */
+	public CHRemoveFromView(CHViewPart view) {
+		super(CHMessages.CHViewPart_RemoveFromView_label);
+		fView= view;
+		ISharedImages images = PlatformUI.getWorkbench().getSharedImages();
+		setImageDescriptor(images.getImageDescriptor(ISharedImages.IMG_ELCL_REMOVE));
+		setDisabledImageDescriptor(images.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE_DISABLED));
+	}
+
+	@Override
+	public void run() {
+		TreeViewer tree = fView.getTreeViewer();
+		ITreeSelection selection = (ITreeSelection) tree.getSelection();
+		tree.setSelection(null); // should stay before removal
+		tree.remove(selection.toArray());
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/callhierarchy/CHViewPart.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2011 Wind River Systems, Inc. and others.
+ * Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -20,6 +20,8 @@ import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.action.IToolBarManager;
 import org.eclipse.jface.action.MenuManager;
 import org.eclipse.jface.action.Separator;
+import org.eclipse.jface.bindings.BindingManagerEvent;
+import org.eclipse.jface.bindings.IBindingManagerListener;
 import org.eclipse.jface.text.Region;
 import org.eclipse.jface.util.LocalSelectionTransfer;
 import org.eclipse.jface.viewers.IOpenListener;
@@ -48,6 +50,7 @@ import org.eclipse.ui.IMemento;
 import org.eclipse.ui.IPartListener2;
 import org.eclipse.ui.IViewReference;
 import org.eclipse.ui.IViewSite;
+import org.eclipse.ui.IWorkbenchCommandConstants;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchPartReference;
 import org.eclipse.ui.IWorkbenchPartSite;
@@ -55,8 +58,10 @@ import org.eclipse.ui.IWorkingSet;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.actions.ActionFactory;
+import org.eclipse.ui.actions.TextActionHandler;
 import org.eclipse.ui.contexts.IContextActivation;
 import org.eclipse.ui.contexts.IContextService;
+import org.eclipse.ui.keys.IBindingService;
 import org.eclipse.ui.navigator.ICommonMenuConstants;
 import org.eclipse.ui.part.PageBook;
 import org.eclipse.ui.part.ViewPart;
@@ -129,6 +134,7 @@ public class CHViewPart extends ViewPart {
 	private Action fShowReference;
 	private Action fOpenElement;
 	private Action fPinViewAction;
+	private Action fRemoveFromViewAction;
 	private CopyTreeAction fCopyAction;
 
 	// action groups
@@ -139,6 +145,9 @@ public class CHViewPart extends ViewPart {
 	private boolean fIsPinned = false;
 	private IPartListener2 fPartListener;
 
+	private IBindingService bindingService;
+	private IBindingManagerListener bindingManagerListener;
+
     @Override
 	public void setFocus() {
         fPagebook.setFocus();
@@ -208,6 +217,22 @@ public class CHViewPart extends ViewPart {
         createActions();
         createContextMenu();
 
+		bindingService = (IBindingService) PlatformUI.getWorkbench().getService(IBindingService.class);
+		if (bindingService != null) {
+			bindingManagerListener = new IBindingManagerListener() {
+				@Override
+				public void bindingManagerChanged(BindingManagerEvent event) {
+					if (event.isActiveBindingsChanged()) {
+						String keyBinding = bindingService.getBestActiveBindingFormattedFor(IWorkbenchCommandConstants.EDIT_DELETE);
+						if (keyBinding != null) {
+							fRemoveFromViewAction.setText(CHMessages.CHViewPart_RemoveFromView_label + '\t'+ keyBinding);
+						}
+					}
+				}
+			};
+			bindingService.addBindingManagerListener(bindingManagerListener);
+		}
+
         setMessage(CHMessages.CHViewPart_emptyPageMessage);
         
         initializeActionStates();
@@ -257,9 +282,14 @@ public class CHViewPart extends ViewPart {
 	public void dispose() {
 		if (fContextActivation != null) {
 			IContextService ctxService = (IContextService)getSite().getService(IContextService.class);
-	    	if (ctxService != null) {
+			if (ctxService != null) {
-	    		ctxService.deactivateContext(fContextActivation);
+				ctxService.deactivateContext(fContextActivation);
-	    	}
+			}
+		}
+
+		if (bindingService != null) {
+			bindingService.removeBindingManagerListener(bindingManagerListener);
+			bindingService = null;
 		}
 
 		if (fOpenViewActionGroup != null) {
@@ -537,6 +567,7 @@ public class CHViewPart extends ViewPart {
 
         fCopyAction= new CopyCallHierarchyAction(this, fTreeViewer);
         fPinViewAction= new CHPinAction(this);
+        fRemoveFromViewAction= new CHRemoveFromView(this);
 
         // setup action bar
         // global action hooks
@@ -551,6 +582,9 @@ public class CHViewPart extends ViewPart {
         actionBars.setGlobalActionHandler(ActionFactory.REFRESH.getId(), fRefreshAction);
         actionBars.updateActionBars();
 
+        TextActionHandler textActionHandler = new TextActionHandler(actionBars);
+        textActionHandler.setDeleteAction(fRemoveFromViewAction);
+
         // local toolbar
         IToolBarManager tm = actionBars.getToolBarManager();
         tm.add(fNextAction);
@@ -718,7 +752,7 @@ public class CHViewPart extends ViewPart {
         }
     }
 
-    protected void onContextMenuAboutToShow(IMenuManager menu) {
+	protected void onContextMenuAboutToShow(IMenuManager menu) {
 		CUIPlugin.createStandardGroups(menu);
 		
 		CHNode node= selectionToNode(fTreeViewer.getSelection());
@@ -751,14 +785,17 @@ public class CHViewPart extends ViewPart {
 		}
 
 		if (fCopyAction.canActionBeAdded()) {
-        	menu.appendToGroup(ICommonMenuConstants.GROUP_EDIT, fCopyAction);
+			menu.appendToGroup(ICommonMenuConstants.GROUP_EDIT, fCopyAction);
+		}
+		if (node != null) {
+			menu.appendToGroup(ICommonMenuConstants.GROUP_EDIT, fRemoveFromViewAction);
 		}
 
 		if (SelectionSearchGroup.canActionBeAdded(selection)){
 			fSelectionSearchGroup.fillContextMenu(menu);
 		}
 		fRefactoringActionGroup.fillContextMenu(menu);
-    }
+	}
 
     private void showReference() {
         if (fNavigationNode != null) {