Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2008 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.wst.jsdt.internal.ui.wizards; import java.lang.reflect.InvocationTargetException; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspaceRunnable; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.OperationCanceledException; import org.eclipse.core.runtime.jobs.ISchedulingRule; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.text.templates.persistence.TemplateStore; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.wizard.Wizard; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.INewWizard; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.ide.IDE; import org.eclipse.ui.wizards.newresource.BasicNewResourceWizard; import org.eclipse.wst.jsdt.core.IJavaScriptElement; import org.eclipse.wst.jsdt.internal.ui.IUIConstants; import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin; import org.eclipse.wst.jsdt.internal.ui.actions.WorkbenchRunnableAdapter; import org.eclipse.wst.jsdt.internal.ui.dialogs.OptionalMessageDialog; import org.eclipse.wst.jsdt.internal.ui.util.ExceptionHandler; public abstract class NewElementWizard extends Wizard implements INewWizard { private IWorkbench fWorkbench; private IStructuredSelection fSelection; public NewElementWizard() { setNeedsProgressMonitor(true); } protected void openResource(final IFile resource) { final IWorkbenchPage activePage = JavaScriptPlugin.getActivePage(); if (activePage != null) { final Display display = getShell().getDisplay(); if (display != null) { display.asyncExec(new Runnable() { public void run() { try { IDE.openEditor(activePage, resource, true); } catch (PartInitException e) { JavaScriptPlugin.log(e); } } }); } } } /** * Subclasses should override to perform the actions of the wizard. * This method is run in the wizard container's context as a workspace runnable. * @param monitor * @throws InterruptedException * @throws CoreException */ protected abstract void finishPage(IProgressMonitor monitor) throws InterruptedException, CoreException; /** * Returns the scheduling rule for creating the element. */ protected ISchedulingRule getSchedulingRule() { return ResourcesPlugin.getWorkspace().getRoot(); // look all by default } protected boolean canRunForked() { return true; } public abstract IJavaScriptElement getCreatedElement(); protected void handleFinishException(Shell shell, InvocationTargetException e) { String title = NewWizardMessages.NewElementWizard_op_error_title; String message = NewWizardMessages.NewElementWizard_op_error_message; ExceptionHandler.handle(e, shell, title, message); } /* * @see Wizard#performFinish */ public boolean performFinish() { IWorkspaceRunnable op = new IWorkspaceRunnable() { public void run(IProgressMonitor monitor) throws CoreException, OperationCanceledException { try { finishPage(monitor); } catch (InterruptedException e) { throw new OperationCanceledException(e.getMessage()); } } }; try { ISchedulingRule rule = null; Job job = Job.getJobManager().currentJob(); if (job != null) rule = job.getRule(); IRunnableWithProgress runnable = null; if (rule != null) runnable = new WorkbenchRunnableAdapter(op, rule, true); else runnable = new WorkbenchRunnableAdapter(op, getSchedulingRule()); getContainer().run(canRunForked(), true, runnable); } catch (InvocationTargetException e) { handleFinishException(getShell(), e); return false; } catch (InterruptedException e) { return false; } return true; } protected void warnAboutTypeCommentDeprecation() { String key = IUIConstants.DIALOGSTORE_TYPECOMMENT_DEPRECATED; if (OptionalMessageDialog.isDialogEnabled(key)) { TemplateStore templates = JavaScriptPlugin.getDefault().getTemplateStore(); boolean isOldWorkspace = templates.findTemplate("filecomment") != null //$NON-NLS-1$ && templates.findTemplate("typecomment") != null; //$NON-NLS-1$ if (!isOldWorkspace) { OptionalMessageDialog.setDialogEnabled(key, false); } String title = NewWizardMessages.NewElementWizard_typecomment_deprecated_title; String message = NewWizardMessages.NewElementWizard_typecomment_deprecated_message; OptionalMessageDialog.open(key, getShell(), title, null, message, MessageDialog.INFORMATION, new String[] { IDialogConstants.OK_LABEL }, 0); } } /* (non-Javadoc) * @see org.eclipse.ui.IWorkbenchWizard#init(org.eclipse.ui.IWorkbench, org.eclipse.jface.viewers.IStructuredSelection) */ public void init(IWorkbench workbench, IStructuredSelection currentSelection) { fWorkbench = workbench; fSelection = currentSelection; } public IStructuredSelection getSelection() { return fSelection; } public IWorkbench getWorkbench() { return fWorkbench; } protected void selectAndReveal(IResource newResource) { BasicNewResourceWizard.selectAndReveal(newResource, fWorkbench.getActiveWorkbenchWindow()); } }