package org.jboss.tools.windup.ui.internal.rules;
import java.io.IOException;
import java.util.List;
import javax.inject.Inject;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.ContentAssistant;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.jface.text.contentassist.IContentAssistant;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IImportWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.internal.format.IStructuredFormatProcessor;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
import org.eclipse.wst.sse.ui.StructuredTextViewerConfiguration;
import org.eclipse.wst.sse.ui.internal.StructuredTextViewer;
import org.eclipse.wst.sse.ui.internal.provisional.style.LineStyleProvider;
import org.eclipse.wst.xml.core.internal.provisional.contenttype.ContentTypeIdForXML;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.eclipse.wst.xml.core.internal.provisional.format.FormatProcessorXML;
import org.eclipse.wst.xml.ui.StructuredTextViewerConfigurationXML;
import org.jboss.tools.windup.model.domain.WorkspaceResourceUtils;
import org.jboss.tools.windup.ui.WindupUIPlugin;
import org.jboss.tools.windup.ui.internal.Messages;
import org.jboss.tools.windup.ui.internal.explorer.TempProject;
import org.jboss.tools.windup.ui.internal.rules.xml.XMLRuleTemplate.Template;
import org.jboss.tools.windup.ui.internal.rules.xml.XMLRulesetModelUtil;
import org.jboss.tools.windup.ui.internal.rules.xml.XMLTemplateFactory;
import org.jboss.tools.windup.ui.internal.rules.xml.XMLTemplateVariableProcessor;
import org.jboss.tools.windup.windup.CustomRuleProvider;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
@SuppressWarnings("restriction")
public class NewXMLRuleWizard extends Wizard implements IImportWizard{
@Inject private XMLTemplateFactory templateFactory;
private CustomRuleProvider provider;
private NewXMLRuleWizardPage xmlPage;
public NewXMLRuleWizard() {
setNeedsProgressMonitor(true);
setWindowTitle(Messages.newXMLRule_title);
}
public void setRuleProvider(CustomRuleProvider provider) {
this.provider = provider;
}
@Override
public void init(IWorkbench workbench, IStructuredSelection selection) {
}
@Override
public void addPages() {
xmlPage = new NewXMLRuleWizardPage();
addPage(xmlPage);
}
@Override
public boolean performFinish() {
SourceViewer sourceViewer = xmlPage.getTemplatePreviewer();
IDocument document = sourceViewer.getDocument();
TempProject project = new TempProject();
IFile file = (IFile)project.createResource(document.get());
IStructuredModel scratchModel;
try {
scratchModel = StructuredModelManager.getModelManager().createUnManagedStructuredModelFor(file);
IDOMModel model = (IDOMModel)scratchModel;
IDOMModel rulesetModel = XMLRulesetModelUtil.getModel(WorkspaceResourceUtils.getFile(provider.getLocationURI()), true);
// for selection
Node firstNode = null;
if (rulesetModel != null) {
NodeList nodeList = model.getDocument().getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
Node clone = rulesetModel.getDocument().importNode(node, true);
if (i == 0) {
firstNode = clone;
}
NodeList rules = rulesetModel.getDocument().getElementsByTagName("rules"); //$NON-NLS-1$
if (rules.getLength() > 0) {
Node rulesNode = rules.item(0);
rulesNode.appendChild(clone);
}
else {
NodeList rulesetNodes = rulesetModel.getDocument().getElementsByTagName("ruleset"); //$NON-NLS-1$
if (rulesetNodes.getLength() == 1) {
Node rulesNode = rulesetModel.getDocument().createElement("rules"); //$NON-NLS-1$
rulesetNodes.item(0).appendChild(rulesNode);
rulesNode.appendChild(clone);
}
}
}
FileEditorInput input = new FileEditorInput(WorkspaceResourceUtils.getFile(provider.getLocationURI()));
IEditorPart sharedEditor = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().findEditor(input);
if (rulesetModel.isDirty() && sharedEditor == null) {
rulesetModel.save();
}
rulesetModel.releaseFromEdit();
if (firstNode != null) {
IStructuredFormatProcessor formatProcessor = new FormatProcessorXML();
formatProcessor.formatNode(firstNode);
}
if (sharedEditor != null && firstNode != null) {
sharedEditor.getSite().getSelectionProvider().setSelection(new StructuredSelection(firstNode));
ITextEditor textEditor = sharedEditor.getAdapter(ITextEditor.class);
if (firstNode instanceof IndexedRegion && textEditor != null) {
int start = ((IndexedRegion) firstNode).getStartOffset();
int length = ((IndexedRegion) firstNode).getEndOffset() - start;
if ((start > -1) && (length > -1)) {
textEditor.selectAndReveal(start, length);
}
}
}
}
} catch (IOException | CoreException e) {
WindupUIPlugin.log(e);
}
return true;
}
private class NewXMLRuleWizardPage extends WizardPage {
private Text filterText;
private TableViewer templateTable;
private SourceViewer templatePreviewer;
private XMLTemplateVariableProcessor templateProcessor= new XMLTemplateVariableProcessor();
public NewXMLRuleWizardPage() {
super("xmlRuleTemplatePage"); //$NON-NLS-1$
setTitle(Messages._UI_WIZARD_NEW_XML_RULE_HEADING);
setDescription(Messages._UI_WIZARD_NEW_XML_RULE_EXPL);
}
@Override
public void createControl(Composite parent) {
GridLayoutFactory.fillDefaults().applyTo(parent);
Composite container = new Composite(parent, SWT.NONE);
GridLayoutFactory.fillDefaults().margins(5, 5).applyTo(container);
GridDataFactory.fillDefaults().grab(true, true).applyTo(container);
Composite top = new Composite(container, SWT.NONE);
GridLayoutFactory.fillDefaults().numColumns(1).applyTo(top);
GridDataFactory.fillDefaults().grab(true, false).applyTo(top);
filterText = new Text(top, SWT.SEARCH | SWT.ICON_SEARCH);
filterText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
filterText.addModifyListener(onSearch());
Composite bottom = new Composite (container, SWT.NONE);
GridLayoutFactory.fillDefaults().applyTo(bottom);
GridDataFactory.fillDefaults().grab(true, true).applyTo(bottom);
SashForm sashForm = new SashForm(bottom, SWT.VERTICAL|SWT.SMOOTH);
GridData gd = new GridData(GridData.FILL_BOTH);
gd.heightHint = 300;
sashForm.setLayoutData(gd);
templateTable = new TableViewer(sashForm, SWT.BORDER|SWT.SINGLE|SWT.FULL_SELECTION|SWT.H_SCROLL|SWT.V_SCROLL);
GridDataFactory.fillDefaults().grab(true, true).applyTo(templateTable.getControl());
templateTable.setContentProvider(ArrayContentProvider.getInstance());
templateTable.setLabelProvider(new LabelProvider() {
@Override
public Image getImage(Object element) {
return WindupUIPlugin.getDefault().getImageRegistry().get(WindupUIPlugin.IMG_RULE);
}
@Override
public String getText(Object element) {
return ((Template)element).getName();
}
});
List<Template> templates = templateFactory.getTemplates();
templateTable.setInput(templates);
templateTable.addFilter(createTemplateFilter());
templatePreviewer = createSourcePreviewer(sashForm);
templateTable.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent e) {
updateTemplatePreview();
}
});
// Preview the first template.
templateTable.setSelection(new StructuredSelection(templates.get(0)));
sashForm.setWeights(new int[] {30, 70});
setControl(container);
}
private void updateTemplatePreview() {
IStructuredSelection ss = (IStructuredSelection)templateTable.getSelection();
if (ss.isEmpty()) {
templatePreviewer.getDocument().set("");
}
else {
Template template = (Template)ss.getFirstElement();
templatePreviewer.getDocument().set(template.generate());
}
}
public SourceViewer getTemplatePreviewer() {
return templatePreviewer;
}
private SourceViewer createSourcePreviewer(Composite parent) {
SourceViewerConfiguration sourceViewerConfiguration = new StructuredTextViewerConfiguration() {
StructuredTextViewerConfiguration baseConfiguration = new StructuredTextViewerConfigurationXML();
public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
return baseConfiguration.getConfiguredContentTypes(sourceViewer);
}
public LineStyleProvider[] getLineStyleProviders(ISourceViewer sourceViewer, String partitionType) {
return baseConfiguration.getLineStyleProviders(sourceViewer, partitionType);
}
public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
ContentAssistant assistant = new ContentAssistant();
assistant.enableAutoActivation(true);
assistant.enableAutoInsert(true);
assistant.setContentAssistProcessor(getTemplateProcessor(), IDocument.DEFAULT_CONTENT_TYPE);
return assistant;
}
};
return doCreateViewer(parent, sourceViewerConfiguration);
}
private SourceViewer doCreateViewer(Composite parent, SourceViewerConfiguration viewerConfiguration) {
SourceViewer viewer = new StructuredTextViewer(parent, null, null, false, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
viewer.getTextWidget().setFont(JFaceResources.getFont("org.eclipse.wst.sse.ui.textfont")); //$NON-NLS-1$
IStructuredModel scratchModel = StructuredModelManager.getModelManager().createUnManagedStructuredModelFor(ContentTypeIdForXML.ContentTypeID_XML);
viewer.configure(viewerConfiguration);
viewer.setDocument(scratchModel.getStructuredDocument());
return viewer;
}
private IContentAssistProcessor getTemplateProcessor() {
return templateProcessor;
}
private ModifyListener onSearch() {
return e -> {
templateTable.refresh();
TableItem[] items = templateTable.getTable().getItems();
if (items.length > 0) {
templateTable.setSelection(new StructuredSelection(items[0].getData()));
}
};
}
private ViewerFilter createTemplateFilter() {
return new ViewerFilter() {
@Override
public boolean select(Viewer viewer, Object parentElement,
Object element) {
if (element instanceof Template) {
return ((Template)element).getName().matches( ".*" + filterText.getText() + ".*");
}
return false;
}
};
}
}
}