| /******************************************************************************* |
| * Copyright (c) 2005, 2007 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.debug.ui.heapwalking; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IExpression; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.internal.ui.VariablesViewModelPresentation; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.PresentationContext; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.TreeModelViewer; |
| import org.eclipse.debug.internal.ui.views.variables.IndexedVariablePartition; |
| import org.eclipse.debug.ui.AbstractDebugView; |
| import org.eclipse.debug.ui.DebugPopup; |
| import org.eclipse.debug.ui.IDebugModelPresentation; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.debug.ui.IDebugView; |
| import org.eclipse.debug.ui.IValueDetailListener; |
| import org.eclipse.debug.ui.InspectPopupDialog; |
| import org.eclipse.jdt.debug.core.IJavaObject; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants; |
| import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin; |
| import org.eclipse.jdt.internal.debug.ui.SWTFactory; |
| import org.eclipse.jdt.internal.debug.ui.display.JavaInspectExpression; |
| import org.eclipse.jface.viewers.ITreeSelection; |
| import org.eclipse.jface.viewers.TreePath; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.SashForm; |
| import org.eclipse.swt.custom.StyledText; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeItem; |
| |
| import com.ibm.icu.text.MessageFormat; |
| |
| /** |
| * A popup that can be used to browse references to an object. |
| * |
| * @since 3.3 |
| */ |
| public class ReferencesPopupDialog extends DebugPopup { |
| private static final int[] DEFAULT_SASH_WEIGHTS = new int[] { 90, 10 }; |
| |
| private static final int MIN_WIDTH = 250; |
| |
| private static final int MIN_HEIGHT = 200; |
| |
| private TreeModelViewer fViewer; |
| |
| private StyledText fValueDisplay; |
| |
| private SashForm fSashForm; |
| |
| private IDebugModelPresentation fModelPresentation; |
| |
| private Tree fTree; |
| |
| private IJavaObject fRoot; |
| |
| private IDebugView fView; |
| |
| /** |
| * Used to identify the presentation context for this viewer |
| */ |
| public static final String VIEWER_ID = IJavaDebugUIConstants.PLUGIN_ID + ".REFERENCES_VIEWER"; //$NON-NLS-1$ |
| |
| /** |
| * Creates a new inspect popup. |
| * |
| * @param shell The parent shell |
| * @param view view to anchor the popup on |
| * @param root object to browse references to |
| */ |
| public ReferencesPopupDialog(Shell shell, IDebugView view, IJavaObject root) { |
| super(shell, getAnchor(view), "org.eclipse.jdt.debug.ui.commands.Inspect"); //$NON-NLS-1$ |
| fRoot = root; |
| fView = view; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.DebugPopup#createDialogArea(org.eclipse.swt.widgets.Composite) |
| */ |
| protected Control createDialogArea(Composite parent) { |
| Composite composite = new Composite(parent, parent.getStyle()); |
| GridLayout layout = new GridLayout(); |
| composite.setLayout(layout); |
| composite.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| // See if the object has at least one reference. If so, create a tree, otherwise display a message to the user. |
| IJavaObject[] referenceTest = null; |
| try{ |
| referenceTest = fRoot.getReferringObjects(1); |
| } catch(DebugException e){ |
| JDIDebugUIPlugin.log(e); |
| return SWTFactory.createLabel(composite, Messages.ReferencesPopupDialog_2, 1); |
| } |
| |
| if (referenceTest == null || referenceTest.length == 0){ |
| return SWTFactory.createLabel(composite, Messages.ReferencesPopupDialog_3, 1); |
| } |
| |
| fSashForm = new SashForm(composite, parent.getStyle()); |
| fSashForm.setOrientation(SWT.VERTICAL); |
| fSashForm.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| fViewer = new TreeModelViewer(fSashForm, SWT.NO_TRIM | SWT.VIRTUAL, new PresentationContext(ReferencesPopupDialog.VIEWER_ID)); |
| |
| fValueDisplay = new StyledText(fSashForm, SWT.NO_TRIM | SWT.WRAP | SWT.V_SCROLL); |
| fValueDisplay.setEditable(false); |
| |
| fTree = fViewer.getTree(); |
| fModelPresentation = new VariablesViewModelPresentation(); |
| fTree.addSelectionListener(new SelectionListener() { |
| public void widgetSelected(SelectionEvent e) { |
| TreeItem[] selections = fTree.getSelection(); |
| if (selections.length > 0) { |
| Object data = selections[selections.length - 1].getData(); |
| |
| IValue val = null; |
| if (data instanceof IndexedVariablePartition) { |
| // no details for partitions |
| return; |
| } |
| if (data instanceof IValue) { |
| val = (IValue) data; |
| } |
| if (val == null) { |
| return; |
| } |
| |
| updateValueDisplay(val); |
| } |
| } |
| |
| public void widgetDefaultSelected(SelectionEvent e) { |
| } |
| }); |
| |
| Map map = ((AbstractDebugView)fView).getPresentationAttributes(fRoot.getModelIdentifier()); |
| Iterator iterator = map.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String key = (String) iterator.next(); |
| fModelPresentation.setAttribute(key, map.get(key)); |
| } |
| |
| // sashForm.setWeights(getInitialSashWeights()); |
| fSashForm.setWeights(DEFAULT_SASH_WEIGHTS); |
| |
| fViewer.setInput(fRoot); |
| return fTree; |
| } |
| |
| private void updateValueDisplay(IValue val) { |
| IValueDetailListener valueDetailListener = new IValueDetailListener() { |
| public void detailComputed(IValue value, final String result) { |
| Display.getDefault().asyncExec(new Runnable() { |
| public void run() { |
| if (!fValueDisplay.isDisposed()) { |
| String text = result; |
| int max = DebugUIPlugin.getDefault().getPreferenceStore().getInt(IDebugUIConstants.PREF_MAX_DETAIL_LENGTH); |
| if (max > 0 && result.length() > max) { |
| text = result.substring(0, max) + "..."; //$NON-NLS-1$ |
| } |
| fValueDisplay.setText(text); |
| } |
| } |
| }); |
| } |
| }; |
| fModelPresentation.computeDetail(val, valueDetailListener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.DebugPopup#close() |
| */ |
| public boolean close() { |
| if(fModelPresentation != null) { |
| fModelPresentation.dispose(); |
| } |
| return super.close(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.DebugPopup#getActionText() |
| */ |
| protected String getActionText() { |
| return Messages.ReferencesPopupDialog_0; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.dialogs.PopupDialog#getInitialSize() |
| */ |
| protected Point getInitialSize() { |
| Point initialSize = super.getInitialSize(); |
| initialSize.x = Math.max(initialSize.x, MIN_WIDTH); |
| initialSize.y = Math.max(initialSize.y, MIN_HEIGHT); |
| return initialSize; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.dialogs.PopupDialog#getBackgroundColorExclusions() |
| */ |
| protected List getBackgroundColorExclusions() { |
| List list = super.getBackgroundColorExclusions(); |
| list.add(fSashForm); |
| return list; |
| } |
| |
| /** |
| * Compute an anchor based on selected item in the tree. |
| * |
| * @param view anchor view |
| * @return anchor point |
| */ |
| protected static Point getAnchor(IDebugView view) { |
| Control control = view.getViewer().getControl(); |
| if (control instanceof Tree) { |
| Tree tree = (Tree) control; |
| TreeItem[] selection = tree.getSelection(); |
| if (selection.length > 0) { |
| Rectangle bounds = selection[0].getBounds(); |
| return tree.toDisplay(new Point(bounds.x, bounds.y + bounds.height)); |
| } |
| } |
| return control.toDisplay(0, 0); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.DebugPopup#persist() |
| */ |
| protected void persist() { |
| ITreeSelection selection = (ITreeSelection) fViewer.getSelection(); |
| if (!selection.isEmpty()) { |
| TreePath path = selection.getPaths()[0]; |
| IJavaObject parent = (IJavaObject) path.getSegment(path.getSegmentCount() - 2); |
| IExpression exp; |
| try { |
| exp = new JavaInspectExpression( |
| MessageFormat.format(Messages.ReferencesPopupDialog_1, new String[]{parent.getJavaType().getName()}), |
| (IJavaValue) selection.getFirstElement()); |
| } catch (DebugException e) { |
| JDIDebugUIPlugin.statusDialog(e.getStatus()); |
| return; |
| } |
| Rectangle bounds = getShell().getBounds(); |
| super.persist(); |
| InspectPopupDialog dialog = new InspectPopupDialog(getParentShell(), new Point(bounds.x, bounds.y), "org.eclipse.jdt.debug.ui.commands.Inspect", exp); //$NON-NLS-1$ |
| dialog.open(); |
| } |
| } |
| |
| |
| } |
