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InspectorView.java
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InspectorView.java
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/*******************************************************************************
* Copyright (c) 2008, 2023 SAP AG, IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* SAP AG - initial API and implementation
* IBM Corporation - accessibility related fixes
* Chris Grindstaff
*******************************************************************************/
package org.eclipse.mat.ui.snapshot.views.inspector;
import com.ibm.icu.text.Collator;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Stack;
import java.util.WeakHashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.layout.TableColumnLayout;
import org.eclipse.jface.layout.TreeColumnLayout;
import org.eclipse.jface.resource.FontDescriptor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.ContentViewer;
import org.eclipse.jface.viewers.IFontProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.mat.SnapshotException;
import org.eclipse.mat.query.IContextObject;
import org.eclipse.mat.query.IContextObjectSet;
import org.eclipse.mat.snapshot.ISnapshot;
import org.eclipse.mat.snapshot.OQL;
import org.eclipse.mat.snapshot.model.GCRootInfo;
import org.eclipse.mat.snapshot.model.IClass;
import org.eclipse.mat.snapshot.model.IInstance;
import org.eclipse.mat.snapshot.model.IObject;
import org.eclipse.mat.snapshot.model.IObjectArray;
import org.eclipse.mat.snapshot.model.IPrimitiveArray;
import org.eclipse.mat.snapshot.model.ObjectReference;
import org.eclipse.mat.ui.MemoryAnalyserPlugin;
import org.eclipse.mat.ui.Messages;
import org.eclipse.mat.ui.accessibility.AccessibleCompositeAdapter;
import org.eclipse.mat.ui.accessibility.AccessibleToolbarAdapter;
import org.eclipse.mat.ui.snapshot.ImageHelper;
import org.eclipse.mat.ui.snapshot.editor.HeapEditor;
import org.eclipse.mat.ui.snapshot.editor.ISnapshotEditorInput;
import org.eclipse.mat.ui.snapshot.views.inspector.FieldsContentProvider.MoreNode;
import org.eclipse.mat.ui.util.Copy;
import org.eclipse.mat.ui.util.PopupMenu;
import org.eclipse.mat.ui.util.QueryContextMenu;
import org.eclipse.mat.util.MessageUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.MenuAdapter;
import org.eclipse.swt.events.MenuEvent;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.part.ViewPart;
public class InspectorView extends ViewPart implements IPartListener, ISelectionChangedListener
{
private HeapEditor editor;
/* package */ISnapshot snapshot;
private Composite top;
private Composite visualViewer;
private TableViewer topTableViewer;
private CTabFolder tabFolder;
private TableViewer attributesTable;
private TableViewer staticsTable;
private TreeViewer classHierarchyTree;
private StyledText resolvedValue;
private boolean pinSelection = false;
private Font font;
private Map<ISnapshot,Stack<IContextObject>> prev = new WeakHashMap<ISnapshot,Stack<IContextObject>>();
private IContextObject current;
private List<Menu> contextMenus = new ArrayList<Menu>();
boolean keepInSync = true;
private boolean blankArrays;
private static final class FieldsViewerComparator extends ViewerComparator
{
public FieldsViewerComparator()
{
super(Collator.getInstance());
}
@Override
public int category(Object element)
{
if (element instanceof MoreNode)
return 1;
return 0;
}
@Override
public int compare(Viewer viewer, Object e1, Object e2)
{
int cat1 = category(e1);
int cat2 = category(e2);
if (cat1 != cat2)
return cat1 - cat2;
TableViewer tableViewer = (TableViewer) viewer;
int direction = tableViewer.getTable().getSortDirection();
if (direction == SWT.NONE)
return 0;
int index = getSortColumnIndex(tableViewer.getTable());
if (index == -1)
return 0;
String name1 = getLabel(viewer, e1, index);
String name2 = getLabel(viewer, e2, index);
return direction == SWT.UP ? getComparator().compare(name1, name2)
: getComparator().reversed().compare(name1, name2);
}
private int getSortColumnIndex(Table table)
{
TableColumn[] columns = table.getColumns();
TableColumn sortColumn = table.getSortColumn();
int index = -1;
for (int i = 0; i < columns.length; i++)
{
if (Objects.equals(sortColumn, columns[i]))
{
index = i;
}
}
return index;
}
private String getLabel(Viewer viewer, Object e, int index)
{
ITableLabelProvider provider = (ITableLabelProvider) ((ContentViewer) viewer).getLabelProvider();
String label = provider.getColumnText(e, index);
if (label == null)
{
label = "";//$NON-NLS-1$
}
return label;
}
}
private static final class ColumnSelectionListener implements SelectionListener
{
private final Runnable afterColumnSelected;
private ColumnSelectionListener(Runnable afterColumnSelected)
{
this.afterColumnSelected = afterColumnSelected;
}
@Override
public void widgetSelected(SelectionEvent e)
{
TableColumn column = (TableColumn) e.widget;
Table table = column.getParent();
int direction = table.getSortDirection();
boolean isSorted = column == table.getSortColumn();
direction = nextSortDirection(direction, isSorted);
table.setSortColumn(column);
table.setSortDirection(direction);
afterColumnSelected.run();
}
private int nextSortDirection(int direction, boolean isSorted)
{
if (!isSorted)
return SWT.UP;
switch (direction)
{
case SWT.UP:
return SWT.DOWN;
case SWT.DOWN:
return SWT.NONE;
default:
return SWT.UP;
}
}
@Override
public void widgetDefaultSelected(SelectionEvent e)
{
// nothing to do...
}
}
/* package */static class BaseNode
{
int objectId;
long addr;
public BaseNode(int objectId)
{
this(objectId, 0);
}
public BaseNode(int objectId, long addr)
{
this.objectId = objectId;
this.addr = addr;
}
static int objectID(IObject object)
{
if (object == null)
return -1;
try
{
return object.getObjectId();
}
catch (RuntimeException e)
{
if (e.getCause() instanceof SnapshotException)
return -1;
throw e;
}
}
}
private static class ObjectNode extends BaseNode
{
String label;
int imageType;
public ObjectNode(IObject object)
{
super(objectID(object), object.getObjectAddress());
this.label = object.getTechnicalName();
this.imageType = ImageHelper.getType(object);
}
public String getLabel()
{
return label;
}
public int getImageType()
{
return imageType;
}
}
private static class TopTableLabelProvider extends LabelProvider
{
@Override
public String getText(Object element)
{
if (element instanceof InfoItem)
return ((InfoItem) element).getText();
else if (element instanceof ObjectNode)
return ((ObjectNode) element).getLabel();
else if (element instanceof GCRootInfo[])
return Messages.InspectorView_GCroot + GCRootInfo.getTypeSetAsString((GCRootInfo[]) element);
else
return "";//$NON-NLS-1$
}
@Override
public Image getImage(Object element)
{
if (element instanceof InfoItem)
return MemoryAnalyserPlugin.getDefault().getImage(((InfoItem) element).getDescriptor());
else if (element instanceof ObjectNode)
return ImageHelper.getImage(((ObjectNode) element).getImageType());
else if (element instanceof GCRootInfo[])
return MemoryAnalyserPlugin.getImage(ImageHelper.Decorations.GC_ROOT);
else
return null;
}
}
private static final class TableContentProvider implements IStructuredContentProvider
{
Object[] elements;
public Object[] getElements(Object inputElement)
{
return elements;
}
public void dispose()
{}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
{
if (newInput instanceof Collection<?>)
{
this.elements = ((Collection<?>) newInput).toArray();
}
else
{
this.elements = (Object[]) newInput;
}
}
}
public static class InfoItem extends BaseNode
{
private ImageDescriptor descriptor;
private String text;
public InfoItem(ImageDescriptor descriptor, String text)
{
this(null, descriptor, text);
}
public InfoItem(IObject object, ImageDescriptor descriptor, String text)
{
super(objectID(object), object != null ? object.getObjectAddress() : Long.MIN_VALUE);
this.descriptor = descriptor;
this.text = text;
}
public ImageDescriptor getDescriptor()
{
return descriptor;
}
public String getText()
{
return text;
}
}
private class MenuListener extends MenuAdapter
{
private Menu menu;
private StructuredViewer viewer;
public MenuListener(Menu menu, StructuredViewer viewer)
{
this.menu = menu;
this.viewer = viewer;
}
@Override
public void menuShown(MenuEvent e)
{
MenuItem[] items = menu.getItems();
for (int ii = 0; ii < items.length; ii++)
items[ii].dispose();
PopupMenu popup = new PopupMenu();
fillContextMenu(popup, viewer);
popup.addToMenu(getViewSite().getActionBars().getStatusLineManager(), menu);
}
}
private static class HierarchyTreeContentProvider implements ITreeContentProvider
{
LinkedList<IClass> supers;
public Object[] getChildren(Object element)
{
int index = supers.indexOf(element);
if (index >= 0 && index + 1 < supers.size())
return new Object[] { supers.get(index + 1) };
return ((IClass) element).getSubclasses().toArray();
}
public IClass getParent(Object element)
{
return ((IClass) element).getSuperClass();
}
public boolean hasChildren(Object element)
{
return !((IClass) element).getSubclasses().isEmpty();
}
public Object[] getElements(Object inputElement)
{
if (supers.isEmpty())
return new Object[0];
return new Object[] { supers.get(0) };
}
public void dispose()
{}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
{
supers = new LinkedList<IClass>();
if (newInput instanceof IClass[])
{
IClass[] input = (IClass[]) newInput;
supers = new LinkedList<IClass>();
supers.add(input[0]);
while (input[0].hasSuperClass())
{
input[0] = input[0].getSuperClass();
supers.addFirst(input[0]);
}
}
}
}
private class HierarchyLabelProvider extends LabelProvider implements IFontProvider
{
private int classId;
public HierarchyLabelProvider(int classId)
{
super();
this.classId = classId;
}
@Override
public Image getImage(Object element)
{
return (element instanceof IClass) ? ImageHelper.getImage(ImageHelper.Type.CLASS) : null;
}
@Override
public String getText(Object element)
{
return (element instanceof IClass) ? ((IClass) element).getName() : "";//$NON-NLS-1$
}
public Font getFont(Object element)
{
if (element instanceof IClass && ((IClass) element).getObjectId() == classId)
return font;
return null;
}
}
// //////////////////////////////////////////////////////////////
// view construction
// //////////////////////////////////////////////////////////////
@Override
public void createPartControl(final Composite parent)
{
SashForm form = new SashForm(parent, SWT.VERTICAL);
GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(1, 1).applyTo(form);
top = new Composite(form, SWT.TOP);
GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(1, 1).applyTo(top);
IToolBarManager mgr = getViewSite().getActionBars().getToolBarManager();
mgr.add(createSyncAction());
FontDescriptor fontDescriptor = FontDescriptor.createFrom(JFaceResources.getDefaultFont());
fontDescriptor = fontDescriptor.setStyle(SWT.BOLD);
this.font = fontDescriptor.createFont(top.getDisplay());
createTopTable(top);
createTabFolder(top);
createVisualViewer(form);
form.setWeights(new int[] { 95, 5 });
// add page listener
getSite().getPage().addPartListener(this);
hookContextMenu();
showBootstrapPart();
}
private void createVisualViewer(Composite parent)
{
visualViewer = new Composite(parent, SWT.TOP);
visualViewer.addPaintListener(new PaintListener()
{
public void paintControl(PaintEvent paintEvent)
{
Object toShow = visualViewer.getData("toShow");//$NON-NLS-1$
if (toShow == null)
return;
if (toShow instanceof Image)
{
paintEvent.gc.drawImage((Image) toShow, 0, 0);
}
else if (toShow instanceof RGB)
{
Color color = new Color(paintEvent.display, (RGB) toShow);
paintEvent.gc.setBackground(color);
paintEvent.gc.fillRectangle(0, 0, visualViewer.getSize().x, visualViewer.getSize().y);
color.dispose();
}
}
});
visualViewer.setVisible(false);
}
private Action createSyncAction()
{
Action syncAction = new Action(null, IAction.AS_CHECK_BOX)
{
@Override
public void run()
{
if (!keepInSync)
{
showBootstrapPart();
if (editor != null)
updateOnSelection(editor.getSelection());
keepInSync = true;
}
else
{
keepInSync = false;
}
this.setChecked(!keepInSync);
}
};
syncAction.setImageDescriptor(MemoryAnalyserPlugin
.getImageDescriptor(MemoryAnalyserPlugin.ISharedImages.SYNCED));
syncAction.setToolTipText(Messages.InspectorView_LinkWithSnapshot);
return syncAction;
}
private void createTopTable(Composite parent)
{
Composite composite = new Composite(parent, SWT.NONE);
topTableViewer = new TableViewer(composite, SWT.FULL_SELECTION | SWT.MULTI);
Table table = topTableViewer.getTable();
AccessibleCompositeAdapter.access(table);
TableColumnLayout columnLayout = new TableColumnLayout();
composite.setLayout(columnLayout);
TableColumn column = new TableColumn(table, SWT.LEFT);
columnLayout.setColumnData(column, new ColumnWeightData(100, 10));
// on win32, item height is reported too low the first time around
int itemHeight = table.getItemHeight() + 1;
if (itemHeight < 17)
itemHeight = 17;
int scrollbarHeight = 2;
if (!Platform.OS_WIN32.equals(Platform.getOS()))
scrollbarHeight = table.getHorizontalBar().getSize().y;
int detailsHeight = 9 * itemHeight + scrollbarHeight;
table.setHeaderVisible(false);
table.setLinesVisible(false);
topTableViewer.setLabelProvider(new TopTableLabelProvider());
topTableViewer.setContentProvider(new TableContentProvider());
GridDataFactory.fillDefaults().hint(SWT.DEFAULT, detailsHeight)//
.grab(true, false).applyTo(composite);
}
private void createTabFolder(Composite parent)
{
tabFolder = new CTabFolder(parent, SWT.TOP | SWT.FLAT);
GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).applyTo(tabFolder);
ToolBar toolBar = new ToolBar(tabFolder, SWT.HORIZONTAL | SWT.FLAT);
// Add custom AccessibleAdapter, passing in associated ToolBar.
toolBar.getAccessible().addAccessibleListener(new AccessibleToolbarAdapter(toolBar) );
tabFolder.setTopRight(toolBar);
// set the height of the tab to display the tool bar correctly
tabFolder.setTabHeight(Math.max(toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT).y, tabFolder.getTabHeight()));
final ToolItem pinItem = new ToolItem(toolBar, SWT.CHECK);
pinItem.setImage(MemoryAnalyserPlugin.getImage(MemoryAnalyserPlugin.ISharedImages.PINNED));
pinItem.setToolTipText(Messages.InspectorView_PinTab);
pinItem.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
pinSelection = !pinSelection;
pinItem.setSelection(pinSelection);
}
});
toolBar.pack();
final CTabItem staticsTab = new CTabItem(tabFolder, SWT.NULL);
staticsTab.setText(Messages.InspectorView_Statics);
staticsTable = createTable(tabFolder);
staticsTab.setControl(staticsTable.getTable().getParent());
CTabItem instancesTab = new CTabItem(tabFolder, SWT.NULL);
instancesTab.setText(Messages.InspectorView_Attributes);
attributesTable = createTable(tabFolder);
instancesTab.setControl(attributesTable.getTable().getParent());
CTabItem classHierarchyTab = new CTabItem(tabFolder, SWT.NULL);
classHierarchyTab.setText(Messages.InspectorView_ClassHierarchy);
classHierarchyTree = createHierarchyTree(tabFolder);
classHierarchyTab.setControl(classHierarchyTree.getTree().getParent());
CTabItem valueTab = new CTabItem(tabFolder, SWT.NULL);
valueTab.setText(Messages.InspectorView_Value);
resolvedValue = createValue(tabFolder);
valueTab.setControl(resolvedValue);
getViewSite().getActionBars().setGlobalActionHandler(ActionFactory.COPY.getId(), new Action()
{
@Override
public void run()
{
if (topTableViewer.getControl().isFocusControl())
{
Copy.copyToClipboard(topTableViewer.getControl());
}
else
{
int s = tabFolder.getSelectionIndex();
switch (s)
{
case 0:
Copy.copyToClipboard(staticsTable.getControl());
break;
case 1:
Copy.copyToClipboard(attributesTable.getControl());
break;
case 2:
Copy.copyToClipboard(classHierarchyTree.getControl());
break;
case 3:
String buffer = resolvedValue.getSelectionText();
Copy.copyToClipboard(buffer, resolvedValue.getDisplay());
break;
default:
break;
}
}
}
});
tabFolder.setSelection(0);
}
private StyledText createValue(CTabFolder parent)
{
StyledText ret = new StyledText(parent, SWT.READ_ONLY | SWT.MULTI | SWT.WRAP);
return ret;
}
private TreeViewer createHierarchyTree(CTabFolder parent)
{
Composite composite = new Composite(parent, SWT.NONE);
TreeViewer classHierarchyTree = new TreeViewer(composite, SWT.FULL_SELECTION | SWT.MULTI);
classHierarchyTree.setContentProvider(new HierarchyTreeContentProvider());
classHierarchyTree.setLabelProvider(new HierarchyLabelProvider(-1));
Tree tree = classHierarchyTree.getTree();
AccessibleCompositeAdapter.access(tree);
TreeColumnLayout columnLayout = new TreeColumnLayout();
composite.setLayout(columnLayout);
TreeColumn column = new TreeColumn(tree, SWT.LEFT);
columnLayout.setColumnData(column, new ColumnWeightData(100, 10));
return classHierarchyTree;
}
private TableViewer createTable(Composite parent)
{
Composite composite = new Composite(parent, SWT.NONE);
TableColumnLayout columnLayout = new TableColumnLayout();
composite.setLayout(columnLayout);
GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).applyTo(composite);
final TableViewer viewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI);
Table table = viewer.getTable();
AccessibleCompositeAdapter.access(table);
viewer.setContentProvider(new FieldsContentProvider());
viewer.setLabelProvider(new FieldsLabelProvider(this, table.getFont()));
viewer.setComparator(new FieldsViewerComparator());
TableColumn tableColumn = new TableColumn(table, SWT.LEFT);
tableColumn.setText(Messages.InspectorView_Type);
tableColumn.setWidth(50);
tableColumn.addSelectionListener(new ColumnSelectionListener(viewer::refresh));
columnLayout.setColumnData(tableColumn, new ColumnWeightData(10, 50, false));
tableColumn = new TableColumn(table, SWT.LEFT);
tableColumn.setWidth(80);
tableColumn.setText(Messages.InspectorView_Name);
tableColumn.addSelectionListener(new ColumnSelectionListener(viewer::refresh));
columnLayout.setColumnData(tableColumn, new ColumnWeightData(30, 80));
tableColumn = new TableColumn(table, SWT.LEFT);
tableColumn.setWidth(250);
tableColumn.setText(Messages.InspectorView_Value);
tableColumn.addSelectionListener(new ColumnSelectionListener(viewer::refresh));
columnLayout.setColumnData(tableColumn, new ColumnWeightData(60, 250, true));
table.setHeaderVisible(true);
return viewer;
}
private void hookContextMenu()
{
createMenu(staticsTable);
createMenu(attributesTable);
createMenu(topTableViewer);
createMenu(classHierarchyTree);
}
private void createMenu(StructuredViewer viewer)
{
Menu menu = new Menu(viewer.getControl());
menu.addMenuListener(new MenuListener(menu, viewer));
viewer.getControl().setMenu(menu);
contextMenus.add(menu);
}
private void fillContextMenu(PopupMenu manager, StructuredViewer viewer)
{
IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
if (editor != null)
{
InspectorContextProvider contextProvider = new InspectorContextProvider(snapshot);
final IContextObject firstElement = contextProvider.getContext(selection.getFirstElement());
final IContextObject currentElement = current;
// Has the actual object changed?
boolean isObject = firstElement != null && (firstElement
.getObjectId() != currentElement.getObjectId()
|| firstElement.getObjectId() == -1 && firstElement instanceof IContextObjectSet
&& currentElement instanceof IContextObjectSet
&& ((IContextObjectSet) firstElement).getObjectIds().length == 0
&& ((IContextObjectSet) currentElement).getObjectIds().length == 0
&& ((IContextObjectSet) currentElement).getOQL() != null
&& !((IContextObjectSet) currentElement).getOQL()
.equals(((IContextObjectSet) firstElement).getOQL()));
boolean addedInto = false;
if (isObject)
{
manager.add(new Action(Messages.InspectorView_GoInto)
{
@Override
public void run()
{
if (!prev.containsKey(snapshot))
prev.put(snapshot, new Stack<IContextObject>());
if (current != null)
prev.get(snapshot).push(current);
updateOnSelection(new StructuredSelection(firstElement));
}
});
addedInto = true;
}
if (prev.containsKey(snapshot) && prev.get(snapshot).size() >= 1)
{
manager.add(new Action(Messages.InspectorView_GoBack)
{
@Override
public void run()
{
updateOnSelection(new StructuredSelection(prev.get(snapshot).pop()));
}
});
addedInto = true;
}
if (addedInto)
manager.addSeparator();
QueryContextMenu contextMenu = new QueryContextMenu(editor, contextProvider);
contextMenu.addContextActions(manager, selection, viewer.getControl());
}
Object firstElement = selection.getFirstElement();
if (firstElement instanceof MoreNode)
{
manager.addSeparator();
((MoreNode) firstElement).getActions().forEach(manager::add);
}
}
private void showBootstrapPart()
{
IWorkbenchPage page = getSite().getPage();
if (page != null)
partActivated(page.getActiveEditor());
}
protected boolean isImportant(IWorkbenchPart part)
{
return part instanceof HeapEditor;
}
@Override
public void dispose()
{
if (this.editor != null)
{
this.editor.removeSelectionChangedListener(this);
this.editor = null;
}
for (Menu menu : contextMenus)
{
if (menu != null && !menu.isDisposed())
{
menu.dispose();
menu = null;
}
}
if (font != null)
font.dispose();
getSite().getPage().removePartListener(this);
super.dispose();
}
// //////////////////////////////////////////////////////////////
// view life-cycle
// //////////////////////////////////////////////////////////////
@Override
public void setFocus()
{
tabFolder.getSelection().getControl().setFocus();
}
public void partActivated(IWorkbenchPart part)
{
if (!isImportant(part)) { return; }
if (!keepInSync)
return;
HeapEditor heapEditor = (HeapEditor) part;
if (this.editor != heapEditor)
{
if (this.editor != null)
{
this.editor.removeSelectionChangedListener(this);
}
this.editor = heapEditor;
final ISnapshotEditorInput input = heapEditor.getSnapshotInput();
if (input.hasSnapshot())
{
setSnapshot(input.getSnapshot());
}
else
{
setSnapshot(null);
// snapshot is not yet available -> register to be informed once
// the snapshot has been fully loaded
input.addChangeListener(new ISnapshotEditorInput.IChangeListener()
{
public void onBaselineLoaded(ISnapshot snapshot)
{}
public void onSnapshotLoaded(ISnapshot snapshot)
{
if (InspectorView.this.snapshot == null)
InspectorView.this.setSnapshot(snapshot);
input.removeChangeListener(this);
}
});
}
this.editor.addSelectionChangedListener(this);
updateOnSelection(this.editor.getSelection());
}
}
public void partBroughtToTop(IWorkbenchPart part)
{
partActivated(part);
}
public void partClosed(IWorkbenchPart part)
{
if (!isImportant(part)) { return; }
HeapEditor heapEditor = (HeapEditor) part;
if (this.editor == heapEditor)
{
this.editor.removeSelectionChangedListener(this);
clearInput();
setSnapshot(null);
this.editor = null;
this.prev.clear();
if (!keepInSync)
{
keepInSync = true;
showBootstrapPart();
}
}
}
public void partDeactivated(IWorkbenchPart part)
{}
public void partOpened(IWorkbenchPart part)
{}
public void selectionChanged(SelectionChangedEvent event)
{
if (keepInSync)
{
ISelection selection = event.getSelection();
updateOnSelection(selection);
}