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/*******************************************************************************
* Copyright (c) 2005, 2013 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.debug.ui;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.model.IExpression;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.internal.ui.SWTFactory;
import org.eclipse.debug.internal.ui.model.elements.ElementContentProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IChildrenUpdate;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdateListener;
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.DebugUIViewsMessages;
import org.eclipse.debug.internal.ui.views.variables.VariablesView;
import org.eclipse.debug.internal.ui.views.variables.details.DefaultDetailPane;
import org.eclipse.debug.internal.ui.views.variables.details.DetailPaneProxy;
import org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
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.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.PartInitException;
import org.osgi.service.prefs.BackingStoreException;
/**
* A DebugPopup that can be used to inspect an
* IExpression object.
* @since 3.2
* @noextend This class is not intended to be subclassed by clients.
*/
public class InspectPopupDialog extends DebugPopup {
private static final String PREF_INSPECT_POPUP_SASH_WEIGHTS = DebugUIPlugin.getUniqueIdentifier() + "inspectPopupSashWeights"; //$NON-NLS-1$
private static final int[] DEFAULT_SASH_WEIGHTS = new int[] { 75, 25 };
private static final int MIN_WIDTH = 300;
private static final int MIN_HEIGHT = 250;
private IPresentationContext fContext;
private TreeModelViewer fViewer;
private SashForm fSashForm;
private Composite fDetailPaneComposite;
private DetailPaneProxy fDetailPane;
private Tree fTree;
private IExpression fExpression;
/**
* Creates a new inspect popup.
*
* @param shell The parent shell
* @param anchor point at which to anchor the popup in Display coordinates. Since
* 3.3 null indicates a default location should be used.
* @param commandId The command id to be used for persistence of
* the dialog (possibly null)
* @param expression The expression being inspected
*/
public InspectPopupDialog(Shell shell, Point anchor, String commandId, IExpression expression) {
super(shell, anchor, commandId);
fExpression = expression;
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.DebugPopup#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
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));
fSashForm = new SashForm(composite, parent.getStyle());
fSashForm.setOrientation(SWT.VERTICAL);
fSashForm.setLayoutData(new GridData(GridData.FILL_BOTH));
VariablesView view = getViewToEmulate();
fContext = new PresentationContext(IDebugUIConstants.ID_VARIABLE_VIEW, view);
if (view != null) {
// copy over properties
IPresentationContext copy = ((TreeModelViewer)view.getViewer()).getPresentationContext();
String[] properties = copy.getProperties();
for (int i = 0; i < properties.length; i++) {
String key = properties[i];
fContext.setProperty(key, copy.getProperty(key));
}
}
fViewer = new TreeModelViewer(fSashForm, SWT.NO_TRIM | SWT.MULTI | SWT.VIRTUAL, fContext);
fViewer.setAutoExpandLevel(1);
fDetailPaneComposite = SWTFactory.createComposite(fSashForm, 1, 1, GridData.FILL_BOTH);
fDetailPane = new DetailPaneProxy(new DetailPaneContainer());
fDetailPane.display(null); // Bring up the default pane so the user doesn't see an empty composite
fTree = fViewer.getTree();
fTree.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent e) {
fDetailPane.display((IStructuredSelection)fViewer.getSelection());
}
@Override
public void widgetDefaultSelected(SelectionEvent e) {}
});
initSashWeights();
fViewer.getContentProvider();
if (view != null) {
StructuredViewer structuredViewer = (StructuredViewer) view.getViewer();
if (structuredViewer != null) {
ViewerFilter[] filters = structuredViewer.getFilters();
for (int i = 0; i < filters.length; i++) {
fViewer.addFilter(filters[i]);
}
}
}
TreeRoot treeRoot = new TreeRoot();
// add update listener to auto-select and display details of root expression
fViewer.addViewerUpdateListener(new IViewerUpdateListener() {
@Override
public void viewerUpdatesComplete() {
}
@Override
public void viewerUpdatesBegin() {
}
@Override
public void updateStarted(IViewerUpdate update) {
}
@Override
public void updateComplete(IViewerUpdate update) {
if (update instanceof IChildrenUpdate) {
TreeSelection selection = new TreeSelection(new TreePath(new Object[]{fExpression}));
fViewer.setSelection(selection);
fDetailPane.display(selection);
fViewer.removeViewerUpdateListener(this);
}
}
});
fViewer.setInput(treeRoot);
return fTree;
}
/**
* Initializes the sash form weights from the preference store (using default values if
* no sash weights were stored previously).
*/
protected void initSashWeights(){
String prefWeights = DebugUIPlugin.getDefault().getPreferenceStore().getString(PREF_INSPECT_POPUP_SASH_WEIGHTS);
if (prefWeights.length() > 0){
String[] weights = prefWeights.split(":"); //$NON-NLS-1$
if (weights.length == 2){
try{
int[] intWeights = new int[2];
intWeights[0] = Integer.parseInt(weights[0]);
intWeights[1] = Integer.parseInt(weights[1]);
fSashForm.setWeights(intWeights);
return;
} catch (NumberFormatException e){}
}
}
fSashForm.setWeights(DEFAULT_SASH_WEIGHTS);
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.PopupDialog#saveDialogBounds(org.eclipse.swt.widgets.Shell)
*/
@Override
protected void saveDialogBounds(Shell shell) {
super.saveDialogBounds(shell);
if (fSashForm != null && !fSashForm.isDisposed()){
int[] weights = fSashForm.getWeights();
if (weights.length == 2){
String weightString = weights[0] + ":" + weights[1]; //$NON-NLS-1$
IEclipsePreferences node = InstanceScope.INSTANCE.getNode(DebugUIPlugin.getUniqueIdentifier());
if(node != null) {
node.put(PREF_INSPECT_POPUP_SASH_WEIGHTS, weightString);
try {
node.flush();
} catch (BackingStoreException e) {
DebugUIPlugin.log(e);
}
}
}
}
}
/**
* Creates the content for the root element of the tree viewer in the inspect
* popup dialog. Always has one child, the expression this popup is displaying.
*
*/
private class TreeRoot extends ElementContentProvider {
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#getChildCount(java.lang.Object, org.eclipse.debug.internal.ui.viewers.provisional.IPresentationContext)
*/
@Override
protected int getChildCount(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
return 1;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#getChildren(java.lang.Object, int, int, org.eclipse.debug.internal.ui.viewers.provisional.IPresentationContext)
*/
@Override
protected Object[] getChildren(Object parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
return new Object[] { fExpression };
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#supportsContextId(java.lang.String)
*/
@Override
protected boolean supportsContextId(String id) {
return true;
}
}
/**
* Attempts to find an appropriate view to emulate, this will either be the
* variables view or the expressions view.
* @return a view to emulate or null
*/
private VariablesView getViewToEmulate() {
IWorkbenchPage page = DebugUIPlugin.getActiveWorkbenchWindow().getActivePage();
VariablesView expressionsView = (VariablesView) page.findView(IDebugUIConstants.ID_EXPRESSION_VIEW);
if (expressionsView != null && expressionsView.isVisible()) {
return expressionsView;
}
VariablesView variablesView = (VariablesView) page.findView(IDebugUIConstants.ID_VARIABLE_VIEW);
if (variablesView != null && variablesView.isVisible()) {
return variablesView;
}
if (expressionsView != null) {
return expressionsView;
}
return variablesView;
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.DebugPopup#close()
*/
@Override
public boolean close() {
if (!wasPersisted()) {
fExpression.dispose();
}
fDetailPane.dispose();
fContext.dispose();
return super.close();
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.DebugPopup#getActionText()
*/
@Override
protected String getActionText() {
return DebugUIViewsMessages.InspectPopupDialog_0;
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.DebugPopup#persist()
*/
@Override
protected void persist() {
super.persist();
DebugPlugin.getDefault().getExpressionManager().addExpression(fExpression);
fExpression = null;
IWorkbenchPage page = DebugUIPlugin.getActiveWorkbenchWindow().getActivePage();
IViewPart part = page.findView(IDebugUIConstants.ID_EXPRESSION_VIEW);
if (part == null) {
try {
page.showView(IDebugUIConstants.ID_EXPRESSION_VIEW);
} catch (PartInitException e) {
}
} else {
page.bringToTop(part);
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.PopupDialog#getInitialSize()
*/
@Override
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()
*/
@Override
protected List getBackgroundColorExclusions() {
List list = super.getBackgroundColorExclusions();
list.add(fSashForm);
return list;
}
/**
* Inner class implementing IDetailPaneContainer methods. Handles changes to detail
* pane and provides limited access to the detail pane proxy.
*/
private class DetailPaneContainer implements IDetailPaneContainer{
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#getCurrentPaneID()
*/
@Override
public String getCurrentPaneID() {
return fDetailPane.getCurrentPaneID();
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#getCurrentSelection()
*/
@Override
public IStructuredSelection getCurrentSelection() {
return (IStructuredSelection)fViewer.getSelection();
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#refreshDetailPaneContents()
*/
@Override
public void refreshDetailPaneContents() {
fDetailPane.display(getCurrentSelection());
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#getParentComposite()
*/
@Override
public Composite getParentComposite() {
return fDetailPaneComposite;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#getWorkbenchPartSite()
*/
@Override
public IWorkbenchPartSite getWorkbenchPartSite() {
return null;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.views.variables.details.IDetailPaneContainer#paneChanged(java.lang.String)
*/
@Override
public void paneChanged(String newPaneID) {
if (newPaneID.equals(DefaultDetailPane.ID)){
Display display = getShell().getDisplay();
Control paneControl = fDetailPane.getCurrentControl();
applyBackgroundColor(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND), paneControl);
applyForegroundColor(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND), paneControl);
}
}
}
}
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