Java tutorial
/******************************************************************************* * Copyright 2011, 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.edt.ide.rui.wizards.pages; import java.net.URL; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.edt.compiler.internal.core.lookup.DefaultCompilerOptions; import org.eclipse.edt.compiler.internal.core.lookup.ICompilerOptions; import org.eclipse.edt.compiler.internal.core.validation.name.EGLNameValidator; import org.eclipse.edt.ide.rui.internal.project.CommonUtilities; import org.eclipse.edt.ide.rui.internal.project.IWidgetLibraryConflict; import org.eclipse.edt.ide.rui.internal.wizards.RuiNewWizardMessages; import org.eclipse.edt.ide.rui.wizards.WebClientProjectTemplateWizard; import org.eclipse.edt.ide.ui.internal.dialogs.StatusInfo; import org.eclipse.edt.ide.ui.internal.project.wizard.pages.ProjectWizardPage; import org.eclipse.edt.ide.ui.internal.project.wizard.pages.SourceProjectWizardCapabilityPage; import org.eclipse.edt.ide.ui.internal.project.wizards.NewEGLProjectWizard; import org.eclipse.edt.ide.ui.internal.project.wizards.ProjectWizardUtils; import org.eclipse.edt.ide.ui.internal.wizards.NewWizardMessages; import org.eclipse.edt.ide.ui.wizards.EGLWizardUtilities.NameValidatorProblemRequestor; import org.eclipse.edt.ide.widgetLibProvider.IWidgetLibProvider; import org.eclipse.edt.ide.widgetLibProvider.WidgetLibProviderManager; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.CellEditor; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ComboBoxCellEditor; import org.eclipse.jface.viewers.EditingSupport; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CCombo; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.Text; public class ProjectWizardRUILibraryPage extends ProjectWizardPage { public static IStatus OK_STATUS = new Status(IStatus.OK, "org.eclipse.edt.ide.rui", 0, "OK", null); //$NON-NLS-1$ private static final String BASE_PACKAGE_HINT = "com.mycompany.myapp"; //$NON-NLS-1$ private Label basePackageLabel; protected Text basePackage; /** The table presenting the templates. */ private CheckboxTableViewer fTableViewer; private Label fDetailLabel; private Label fDetailTitleLabel; private Label fLogoLabel; private HashMap<String, LibraryNode> fLibraryNodes = new HashMap<String, LibraryNode>(); private IWidgetLibProvider[] libProviders; private Hashtable libraryImages = new Hashtable(); private String widgetLibraryContainer; public ProjectWizardRUILibraryPage(String pageName, String widgetLibraryContainer) { super(pageName); setTitle(RuiNewWizardMessages.RUILibraryPageTitle); setDescription(RuiNewWizardMessages.RUILibraryPageDescription); this.widgetLibraryContainer = widgetLibraryContainer; populateLibraryData(); } public void createContents(Composite ancestor) { GridData adata = new GridData(GridData.FILL_BOTH); ancestor.setLayoutData(adata); ancestor.setLayout(new GridLayout()); createBasePackageEntry(ancestor); createSelectionTable(ancestor); createDetailGroup(ancestor); fTableViewer.getTable().setFocus(); //TODO: <jiyong> Help // PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, HelpContextIDs.New_EGL_Base_Project_Advanced_Page); } protected void createBasePackageEntry(Composite parent) { Composite c = new Composite(parent, SWT.NONE); c.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout layout = new GridLayout(2, false); // layout.verticalSpacing = layout.verticalSpacing * 2; layout.marginWidth = 0; c.setLayout(layout); this.basePackageLabel = new Label(c, SWT.NULL); this.basePackageLabel.setText(NewWizardMessages.EGLProjectWizardTypePage_BasePackage); this.basePackage = new Text(c, SWT.BORDER); this.basePackage.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { String name = ((Text) e.widget).getText(); ((NewEGLProjectWizard) ((WebClientProjectTemplateWizard) getWizard()).getParentWizard()).getModel() .setBasePackageName(name); } }); this.basePackage.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); String defaultBasePackageName = ((NewEGLProjectWizard) ((WebClientProjectTemplateWizard) getWizard()) .getParentWizard()).getModel().getBasePackageName(); if (defaultBasePackageName != null && !defaultBasePackageName.isEmpty()) { basePackage.setText(defaultBasePackageName); } hookListenerPackageName(basePackage); new Label(c, SWT.NULL).setText(NewWizardMessages.EGLProjectWizardTypePage_BasePackage_Example); new Label(c, SWT.NULL).setText(BASE_PACKAGE_HINT); } private void hookListenerPackageName(Text text) { text.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { IStatus status = validatePackageName(basePackage.getText()); // Check whether the project name is valid if (status != OK_STATUS) { setErrorMessage(status.getMessage()); } else { setErrorMessage(null); } getWizard().getContainer().updateButtons(); } }); } public IStatus validatePackageName(String packageName) { if (packageName.length() > 0) { if (packageName.length() != packageName.trim().length()) { return ProjectWizardUtils.createErrorStatus(NewWizardMessages.error_basepackage_spaces); } StatusInfo pkgStatus = new StatusInfo(); ICompilerOptions compilerOption = DefaultCompilerOptions.getInstance(); NameValidatorProblemRequestor nameValidaRequestor = new NameValidatorProblemRequestor(pkgStatus); EGLNameValidator.validate(packageName, EGLNameValidator.PACKAGE, nameValidaRequestor, compilerOption); if (!pkgStatus.isOK()) return ProjectWizardUtils.createErrorStatus(pkgStatus.getMessage()); } return OK_STATUS; } public boolean isPageComplete() { return super.isPageComplete() && validatePage(); } private boolean validatePage() { // This method is invoked before modifyText listener, so we need to check the project name IStatus status = validatePackageName(basePackage.getText()); if (status != OK_STATUS) return false; return true; } private void populateLibraryData() { // Get the project name libProviders = WidgetLibProviderManager.getInstance().getProviders(widgetLibraryContainer); if (libProviders != null) { String id, libName, resourcePluginName, resourceFolder, projectName; boolean selected; for (int i = 0; i < libProviders.length; i++) { id = libProviders[i].getId(); libName = libProviders[i].getLibName(); selected = libProviders[i].isSelected(); resourcePluginName = libProviders[i].getResourcePluginName(); resourceFolder = libProviders[i].getResourceFolder(); projectName = libProviders[i].getProjectName(); if (id != null) { try { URL url = CommonUtilities.getWidgetProjectURL(resourcePluginName, resourceFolder, projectName); if (url != null) { if (!fLibraryNodes.containsKey(libName)) { fLibraryNodes.put(libName, new LibraryNode(libName)); } fLibraryNodes.get(libName).addProvider(libProviders[i]); } } catch (Exception e) { e.printStackTrace(); } } } } } private void createSelectionTable(Composite ancestor) { Composite tableComposite = new Composite(ancestor, SWT.NONE); GridData data = new GridData(GridData.FILL_BOTH); data.widthHint = 360; tableComposite.setLayoutData(data); ColumnLayout columnLayout = new ColumnLayout(); tableComposite.setLayout(columnLayout); Table table = new Table(tableComposite, SWT.CHECK | SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL); table.setHeaderVisible(true); table.setLinesVisible(true); fTableViewer = new CheckboxTableViewer(table); fTableViewer.setComparator(new ViewerSorter()); fTableViewer.setContentProvider(new LibraryContentProvider()); TableViewerColumn column1 = new TableViewerColumn(fTableViewer, new TableColumn(table, SWT.NONE)); column1.getColumn().setText(RuiNewWizardMessages.RUILibraryPage_libname_label); column1.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { LibraryNode insertDataNode = (LibraryNode) element; return insertDataNode.getName(); } }); columnLayout.addColumnData(new ColumnWeightData(4, 70, true)); final TableViewerColumn column2 = new TableViewerColumn(fTableViewer, new TableColumn(table, SWT.NONE)); column2.getColumn().setText(RuiNewWizardMessages.RUILibraryPage_version_label); column2.setEditingSupport(new VersionColumnEditingSupport(fTableViewer)); column2.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { LibraryNode insertDataNode = (LibraryNode) element; return insertDataNode.getVersion(); } }); columnLayout.addColumnData(new ColumnWeightData(2, 70, true)); final TableViewerColumn column3 = new TableViewerColumn(fTableViewer, new TableColumn(table, SWT.NONE)); column3.getColumn().setText(RuiNewWizardMessages.RUILibraryPage_provider_label); column3.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { LibraryNode insertDataNode = (LibraryNode) element; return insertDataNode.getProvider(); } }); // column3.getColumn().setToolTipText(NewWizardMessages.RUILibraryPage_version_tooltip); columnLayout.addColumnData(new ColumnWeightData(2, 40, true)); fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent e) { setDetails(); } }); fTableViewer.addCheckStateListener(new ICheckStateListener() { public void checkStateChanged(CheckStateChangedEvent event) { LibraryNode newElement = (LibraryNode) event.getElement(); if ((!(event.getChecked())) && newElement.getWProvider().isMandatory()) { fTableViewer.setChecked(newElement, true); return; } setSelectedWidgetLibrary((LibraryNode) event.getElement()); } }); fTableViewer.setInput(new ArrayList<LibraryNode>(fLibraryNodes.values())); fTableViewer.setAllChecked(false); setSelectedWidgetLibrary(); } private void createDetailGroup(Composite ancestor) { Group group = new Group(ancestor, SWT.NULL); group.setText(RuiNewWizardMessages.RUILibraryPage_details_label); //GridLayout GridLayout layout = new GridLayout(2, false); group.setLayout(layout); //GridData GridData data = new GridData(GridData.FILL_HORIZONTAL); data.horizontalIndent = 0; data.heightHint = 150; group.setLayoutData(data); Composite innerComposite = new Composite(group, SWT.NONE); data = new GridData(GridData.FILL_BOTH); innerComposite.setLayoutData(data); innerComposite.setLayout(new FillLayout()); /*fDetailTitleLabel = new Label(innerComposite, SWT.BOLD); data = new GridData(GridData.FILL); data.horizontalIndent = 0; data.verticalAlignment = GridData.FILL; data.horizontalAlignment = GridData.FILL; data.grabExcessHorizontalSpace = true; fDetailTitleLabel.setLayoutData(data);*/ fDetailLabel = new Label(innerComposite, SWT.NONE | SWT.WRAP); /*data = new GridData(GridData.FILL); data.horizontalIndent = 0; data.verticalAlignment = GridData.FILL; data.horizontalAlignment = GridData.FILL; data.grabExcessHorizontalSpace = true; fDetailLabel.setLayoutData(data);*/ fLogoLabel = new Label(group, SWT.NONE); data = new GridData(GridData.VERTICAL_ALIGN_BEGINNING); fLogoLabel.setLayoutData(data); } private Object[] getSelectedLib() { Iterator iter = fLibraryNodes.values().iterator(); ArrayList<LibraryNode> nodes = new ArrayList<LibraryNode>(); while (iter.hasNext()) { LibraryNode node = (LibraryNode) iter.next(); if (node.isSelected()) nodes.add(node); } return nodes.toArray(new Object[nodes.size()]); } public void setProjectName(String projectName) { ((NewEGLProjectWizard) ((WebClientProjectTemplateWizard) getWizard()).getParentWizard()).getModel() .setProjectName(projectName); } private void setSelectedWidgetLibrary() { Object[] selectedLib = getSelectedLib(); for (Object element : selectedLib) { // New element has conflict with the current selected library, stop adding it fTableViewer.setChecked(element, true); if (((LibraryNode) element).getWProvider().isMandatory()) { fTableViewer.setGrayed(element, true); } setSelectedWidgetLibrary((LibraryNode) element); } } private void setSelectedWidgetLibrary(LibraryNode newElement) { Object[] checkElements = fTableViewer.getCheckedElements(); ArrayList<String> selectedWidgetLibraries = new ArrayList<String>(); for (Object element : checkElements) { // New element has conflict with the current selected library, stop adding it LibraryNode node = (LibraryNode) element; if (element != newElement && (newElement.isConflict(node.getId()) || node.isConflict(newElement.getId()))) { fTableViewer.setChecked(newElement, false); return; } else selectedWidgetLibraries.add(((LibraryNode) element).getId()); } ((NewEGLProjectWizard) ((WebClientProjectTemplateWizard) getWizard()).getParentWizard()).getModel() .setSelectedWidgetLibraries(selectedWidgetLibraries); updateNextPageBuildPathSelections(selectedWidgetLibraries); } private void updateNextPageBuildPathSelections(List<String> selectedWidgetLibraries) { IWizardPage nextPage = getNextPage(); SourceProjectWizardCapabilityPage apage = (SourceProjectWizardCapabilityPage) nextPage; apage.setfSelectedImportProjectList(selectedWidgetLibraries); } private void setDetails() { IStructuredSelection selection = (IStructuredSelection) fTableViewer.getSelection(); if (selection.size() == 1) { LibraryNode data = (LibraryNode) selection.getFirstElement(); fDetailLabel.setText(data.getDetail()); ImageDescriptor logo = data.getLogo(); if (logo != null) { Image image = null; if (libraryImages.containsKey(data)) image = (Image) libraryImages.get(data); else { image = logo.createImage(); libraryImages.put(data, image); } fLogoLabel.setImage(image); } else { fLogoLabel.setImage(null); } fLogoLabel.getParent().layout(true); } else { fDetailLabel.setText(""); //$NON-NLS-1$ } } protected static class LibraryNode { private String fName; private String fVersion; private boolean fSelected; private HashSet<IWidgetLibProvider> fProviders = new HashSet<IWidgetLibProvider>(); public LibraryNode(String name) { fName = name; fVersion = ""; fSelected = false; } public boolean isSelected() { return fSelected; } protected void setSelected(boolean selected) { this.fSelected = selected; } public void addProvider(IWidgetLibProvider wProvider) { if (wProvider.isSelected() || fProviders.isEmpty()) { fVersion = wProvider.getFullVersion(); fSelected = wProvider.isSelected(); } fProviders.add(wProvider); } public String getName() { return fName; } public int getVersionSel() { String[] versions = getVersions(); for (int i = 0; i < versions.length; i++) { if (versions[i].equals(fVersion)) return i; } return 0; } public void setVersionSel(int index) { fVersion = getVersions()[index]; } public String getVersion() { return fVersion; } public void setVersion(String version) { fVersion = version; } public String getId() { return getWProvider().getId(); } public String getProvider() { return getWProvider().getProvider(); } public String getDetail() { return getWProvider().getDetail(); } public ImageDescriptor getLogo() { return getWProvider().getLogo(); } public boolean isConflict(String aLib) { IWidgetLibraryConflict conflictClass = getWProvider().getConflictClass(); if (conflictClass != null) return conflictClass.isConflict(aLib); return false; } public String[] getVersions() { HashSet<String> versions = new HashSet<String>(); Iterator iter = fProviders.iterator(); while (iter.hasNext()) { IWidgetLibProvider wProvider = (IWidgetLibProvider) iter.next(); versions.add(wProvider.getFullVersion()); } return versions.toArray(new String[versions.size()]); } private IWidgetLibProvider getWProvider() { Iterator iter = fProviders.iterator(); while (iter.hasNext()) { IWidgetLibProvider wProvider = (IWidgetLibProvider) iter.next(); if (wProvider.getFullVersion().equals(getVersion())) return wProvider; } return null; } } protected static class LibraryContentProvider implements IStructuredContentProvider { /** The library store. */ private ArrayList<LibraryNode> nodes; public Object[] getElements(Object input) { return nodes.toArray(); } public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { nodes = (ArrayList<LibraryNode>) newInput; } } private class VersionColumnEditingSupport extends EditingSupport { private TableViewer viewer; private ComboBoxCellEditor comboCellEditor; public VersionColumnEditingSupport(TableViewer viewer) { super(viewer); this.viewer = viewer; } @Override protected CellEditor getCellEditor(Object element) { return this.comboCellEditor; } @Override protected boolean canEdit(Object element) { LibraryNode insertDataNode = (LibraryNode) element; String[] versions = insertDataNode.getVersions(); comboCellEditor = new ComboBoxCellEditor(viewer.getTable(), versions, SWT.READ_ONLY); ((CCombo) comboCellEditor.getControl()).setVisibleItemCount(10); if (versions.length > 1) { return true; } else { return false; } } @Override protected Object getValue(Object element) { return ((LibraryNode) element).getVersionSel(); } @Override protected void setValue(Object element, Object value) { ((LibraryNode) element).setVersionSel((Integer) value); getViewer().update(element, null); setSelectedWidgetLibrary((LibraryNode) element); setDetails(); } } @Override public void dispose() { try { Collection<Image> images = libraryImages.values(); for (Iterator iterator = images.iterator(); iterator.hasNext();) { Image e = (Image) iterator.next(); if (!e.isDisposed()) { e.dispose(); } } libraryImages.clear(); } catch (Exception ex) { } super.dispose(); } @Override public void setVisible(boolean visible) { super.setVisible(visible); // Select the first library in the table so that its details show up if (visible && fTableViewer.getTable().getItemCount() > 0 && fTableViewer.getTable().getSelectionCount() == 0) { fTableViewer.setSelection(new StructuredSelection(fTableViewer.getElementAt(0))); } } }