Java tutorial
/******************************************************************************* * Copyright (c) 2004, 2005 Sybase, Inc. 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: * Sybase, Inc. - initial API and implementation *******************************************************************************/ package org.eclipse.jst.jsf.facesconfig.ui.section; import java.util.Iterator; import java.util.List; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.emf.common.command.Command; import org.eclipse.emf.common.notify.Notification; import org.eclipse.emf.common.notify.impl.AdapterImpl; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.util.EcoreUtil; import org.eclipse.emf.edit.command.AddCommand; import org.eclipse.emf.edit.command.RemoveCommand; import org.eclipse.jface.viewers.IContentProvider; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.StructuredViewer; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.jst.jsf.facesconfig.emf.DescriptionType; import org.eclipse.jst.jsf.facesconfig.emf.FacesConfigFactory; import org.eclipse.jst.jsf.facesconfig.emf.FacesConfigPackage; import org.eclipse.jst.jsf.facesconfig.emf.FacesConfigType; import org.eclipse.jst.jsf.facesconfig.emf.ManagedBeanClassType; import org.eclipse.jst.jsf.facesconfig.emf.ManagedBeanNameType; import org.eclipse.jst.jsf.facesconfig.emf.ManagedBeanScopeType; import org.eclipse.jst.jsf.facesconfig.emf.ManagedBeanType; import org.eclipse.jst.jsf.facesconfig.ui.EditorMessages; import org.eclipse.jst.jsf.facesconfig.ui.EditorPlugin; import org.eclipse.jst.jsf.facesconfig.ui.page.FacesConfigMasterDetailPage; import org.eclipse.jst.jsf.facesconfig.ui.page.IFacesConfigPage; import org.eclipse.jst.jsf.facesconfig.ui.provider.ManagedBeanContentProvider; import org.eclipse.jst.jsf.facesconfig.ui.provider.ManagedBeanLabelProvider; import org.eclipse.jst.jsf.facesconfig.ui.wizard.NewManagedBeanWizard; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.IEditorInput; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.forms.IManagedForm; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.part.FileEditorInput; /** * @author sfshi */ public class ManagedBeanMasterSection extends FacesConfigMasterSection { private ManagedBeanMasterSectionAdapter managedBeanMasterSectionAdapter; /** * @param parent * @param managedForm * @param toolkit * @param page */ public ManagedBeanMasterSection(Composite parent, IManagedForm managedForm, FormToolkit toolkit, FacesConfigMasterDetailPage page) { super(parent, managedForm, toolkit, page, null, null); getSection().setText(EditorMessages.ManagedBeanMasterSection_Name); getSection().setDescription(EditorMessages.ManagedBeanMasterSection_Description); } protected StructuredViewer createViewer(Composite parent, FormToolkit toolkit) { Composite treeContainer = toolkit.createComposite(parent); toolkit.paintBordersFor(treeContainer); GridData gd = new GridData(GridData.FILL_BOTH); treeContainer.setLayoutData(gd); GridLayout layout = new GridLayout(); treeContainer.setLayout(layout); // Create tree viewer TreeViewer treeViewer = new TreeViewer(treeContainer, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); gd = new GridData(GridData.FILL_BOTH); treeViewer.getControl().setLayoutData(gd); //Bug 312727 - [JSF2.0] Add view scope to FacesConfigEditor for Managed Beans IContentProvider contentProvider = new ManagedBeanContentProvider(); final IFacesConfigPage page = getPage(); if (page != null) { final IEditorInput input = page.getEditorInput(); if (input instanceof FileEditorInput) { final IFile file = ((FileEditorInput) input).getFile(); if (file != null) { final IProject project = file.getProject(); if (project != null) { contentProvider = new ManagedBeanContentProvider(project); } } } } treeViewer.setContentProvider(contentProvider); treeViewer.setLabelProvider(new ManagedBeanLabelProvider()); treeViewer.addSelectionChangedListener(this); treeViewer.setAutoExpandLevel(3); return treeViewer; } protected void addButtonSelected(SelectionEvent e) { IProject project = (IProject) this.getPage().getEditor().getAdapter(IProject.class); NewManagedBeanWizard wizard = new NewManagedBeanWizard(project); IStructuredSelection selection = (IStructuredSelection) this.getSelection(); if (selection.getFirstElement() instanceof ManagedBeanScopeTreeItem) { // if user is selecting a scope tree item, then use this scope as // the default scope for the new managed bean. ManagedBeanScopeTreeItem scopeTreeItem = (ManagedBeanScopeTreeItem) selection.getFirstElement(); wizard.setDefaultScope(scopeTreeItem.getScope()); } wizard.setForcePreviousAndNextButtons(true); Shell shell = EditorPlugin.getActiveShell(); WizardDialog wizardDialog = new WizardDialog(shell, wizard); wizardDialog.create(); wizardDialog.setBlockOnOpen(true); if (wizardDialog.open() == Window.OK) { ManagedBeanType managedBean = FacesConfigFactory.eINSTANCE.createManagedBeanType(); ManagedBeanNameType name = FacesConfigFactory.eINSTANCE.createManagedBeanNameType(); name.setTextContent(wizard.getManagedBeanName()); managedBean.setManagedBeanName(name); ManagedBeanClassType clazz = FacesConfigFactory.eINSTANCE.createManagedBeanClassType(); clazz.setTextContent(wizard.getManagedBeanClass()); managedBean.setManagedBeanClass(clazz); ManagedBeanScopeType scope = FacesConfigFactory.eINSTANCE.createManagedBeanScopeType(); scope.setTextContent(wizard.getManagedBeanScope()); managedBean.setManagedBeanScope(scope); String desc = wizard.getManagedBeanDescription(); if (desc != null && desc.trim().length() > 0) { DescriptionType description = FacesConfigFactory.eINSTANCE.createDescriptionType(); description.setTextContent(wizard.getManagedBeanDescription()); managedBean.getDescription().add(description); } Command cmd = AddCommand.create(getEditingDomain(), getInput(), null, managedBean); if (cmd.canExecute()) { this.getEditingDomain().getCommandStack().execute(cmd); } } } protected void removeButtonSelected(SelectionEvent e) { IStructuredSelection ssel = StructuredSelection.EMPTY; ISelection selection = getSelection(); if (selection instanceof IStructuredSelection) { ssel = (IStructuredSelection) selection; } if (!ssel.isEmpty()) { if (ssel.getFirstElement() instanceof ManagedBeanType) { ManagedBeanType element = (ManagedBeanType) ssel.getFirstElement(); Command command = RemoveCommand.create(getEditingDomain(), this.getInput(), FacesConfigPackage.eINSTANCE.getFacesConfigType_ManagedBean(), element); if (command.canExecute()) { getEditingDomain().getCommandStack().execute(command); } } } } protected void updateButtons() { IStructuredSelection ssel = (IStructuredSelection) getStructuredViewer().getSelection(); boolean isRemoveEnable = false; if (!ssel.isEmpty()) { Object s1 = ssel.getFirstElement(); if (s1 instanceof ManagedBeanType) { isRemoveEnable = true; } } getRemoveButton().setEnabled(isRemoveEnable); } /** * Override the super method to ignore the selection on ScopeTreeItem. */ public void selectionChanged(SelectionChangedEvent event) { if (event != null && event.getSelection() != null && ((IStructuredSelection) event.getSelection()) .getFirstElement() instanceof ManagedBeanScopeTreeItem) { event = new SelectionChangedEvent(this, StructuredSelection.EMPTY); } super.selectionChanged(event); updateButtons(); } protected void addAdaptersOntoInput(Object newInput) { super.addAdaptersOntoInput(newInput); FacesConfigType facesConfig = (FacesConfigType) newInput; if (EcoreUtil.getExistingAdapter(facesConfig, ManagedBeanMasterSection.class) == null) { facesConfig.eAdapters().add(getManagedBeanMasterSectionAdapter()); } List managedbeans = facesConfig.getManagedBean(); for (Iterator it = managedbeans.iterator(); it.hasNext();) { ManagedBeanType managedbean = (ManagedBeanType) it.next(); if (EcoreUtil.getExistingAdapter(managedbean, ManagedBeanMasterSection.class) == null) { managedbean.eAdapters().add(getManagedBeanMasterSectionAdapter()); } } } protected void removeAdaptersFromInput(Object oldInput) { FacesConfigType facesConfig = (FacesConfigType) oldInput; if (EcoreUtil.getExistingAdapter(facesConfig, ManagedBeanMasterSection.class) != null) { facesConfig.eAdapters().remove(getManagedBeanMasterSectionAdapter()); } List managedbeans = facesConfig.getManagedBean(); for (Iterator it = managedbeans.iterator(); it.hasNext();) { ManagedBeanType managedbean = (ManagedBeanType) it.next(); if (EcoreUtil.getExistingAdapter(managedbean, ManagedBeanMasterSection.class) != null) { managedbean.eAdapters().remove(getManagedBeanMasterSectionAdapter()); } } super.removeAdaptersFromInput(oldInput); } private ManagedBeanMasterSectionAdapter getManagedBeanMasterSectionAdapter() { if (managedBeanMasterSectionAdapter == null) { managedBeanMasterSectionAdapter = new ManagedBeanMasterSectionAdapter(); } return managedBeanMasterSectionAdapter; } class ManagedBeanMasterSectionAdapter extends AdapterImpl { public boolean isAdapterForType(Object type) { if (type == ManagedBeanMasterSection.class) return true; return false; } public void notifyChanged(Notification msg) { super.notifyChanged(msg); if (msg.getFeature() == FacesConfigPackage.eINSTANCE.getFacesConfigType_ManagedBean()) { if (msg.getEventType() == Notification.ADD) { final EObject mbean = (EObject) msg.getNewValue(); if (EcoreUtil.getExistingAdapter(mbean, ManagedBeanMasterSection.class) == null) { mbean.eAdapters().add(getManagedBeanMasterSectionAdapter()); } if (Thread.currentThread() == PlatformUI.getWorkbench().getDisplay().getThread()) { getStructuredViewer().refresh(true); IStructuredSelection selection = new StructuredSelection(mbean); getStructuredViewer().setSelection(selection); } else { PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() { public void run() { getStructuredViewer().refresh(true); IStructuredSelection selection = new StructuredSelection(mbean); getStructuredViewer().setSelection(selection); } }); } } else if (msg.getEventType() == Notification.REMOVE) { final EObject mbean = (EObject) msg.getOldValue(); if (Thread.currentThread() == PlatformUI.getWorkbench().getDisplay().getThread()) { getStructuredViewer().refresh(true); if (EcoreUtil.getExistingAdapter(mbean, ManagedBeanMasterSection.class) == null) { mbean.eAdapters().remove(getManagedBeanMasterSectionAdapter()); } } else { PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() { public void run() { getStructuredViewer().refresh(true); if (EcoreUtil.getExistingAdapter(mbean, ManagedBeanMasterSection.class) == null) { mbean.eAdapters().remove(getManagedBeanMasterSectionAdapter()); } } }); } } else if (msg.getEventType() == Notification.SET) { final Object mbean = msg.getNewValue(); if (Thread.currentThread() == PlatformUI.getWorkbench().getDisplay().getThread()) { getStructuredViewer().refresh(mbean, true); } else { PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() { public void run() { getStructuredViewer().refresh(mbean, true); } }); } } if (msg.getFeature() == FacesConfigPackage.eINSTANCE.getManagedBeanType_ManagedBeanClass() || msg.getFeature() == FacesConfigPackage.eINSTANCE.getManagedBeanType_ManagedBeanName()) { final Object bean = msg.getNotifier(); if (Thread.currentThread() == PlatformUI.getWorkbench().getDisplay().getThread()) { getStructuredViewer().refresh(bean, true); } else { PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() { public void run() { getStructuredViewer().refresh(bean, true); } }); } } else if (msg.getFeature() == FacesConfigPackage.eINSTANCE.getManagedBeanType_ManagedBeanScope()) { final Object mbean = msg.getNotifier(); if (Thread.currentThread() == PlatformUI.getWorkbench().getDisplay().getThread()) { getStructuredViewer().refresh(); IStructuredSelection selection = new StructuredSelection(mbean); getStructuredViewer().setSelection(selection); } else { PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() { public void run() { getStructuredViewer().refresh(); IStructuredSelection selection = new StructuredSelection(mbean); getStructuredViewer().setSelection(selection); } }); } } } } } }