Java tutorial
/******************************************************************************* * Copyright (c) 2012-2014 Pivotal Software, Inc. * 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 * https://www.eclipse.org/legal/epl-v10.html * * Contributors: * Pivotal Software, Inc. - initial API and implementation *******************************************************************************/ package org.grails.ide.eclipse.editor.gsp.actions; import java.util.List; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jdt.groovy.core.util.ReflectionUtils; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.PopupDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.IOpenListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.OpenEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.internal.WorkbenchPlugin; import org.eclipse.ui.model.WorkbenchLabelProvider; import org.grails.ide.eclipse.core.GrailsCoreActivator; import org.grails.ide.eclipse.editor.groovy.GrailsEditorGroovyActivator; import org.grails.ide.eclipse.editor.groovy.elements.INavigableGrailsElement; import org.grails.ide.eclipse.editor.gsp.wizard.NewGSPWizard; /** * @author Andrew Eisenberg * @created Dec 3, 2010 */ public class GoToGSPPopDialog extends PopupDialog { private final INavigableGrailsElement elt; private IFile result; private TableViewer list; public GoToGSPPopDialog(Shell parent, INavigableGrailsElement elt) { super(parent, SWT.NO_TRIM, true, true, true, true, true, "Go To GSP", "Select GSP"); this.elt = elt; } // its a shame that these variables are private in the super class private final static GridLayoutFactory POPUP_LAYOUT_FACTORY = GridLayoutFactory.fillDefaults() .margins(POPUP_MARGINWIDTH, POPUP_MARGINHEIGHT).spacing(POPUP_HORIZONTALSPACING, POPUP_VERTICALSPACING); private final static GridDataFactory LAYOUTDATA_GRAB_BOTH = GridDataFactory.fillDefaults().grab(true, true); @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); list = new TableViewer(composite, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL); list.setLabelProvider(new WorkbenchLabelProvider()); list.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { remmberItemAndClose(event.getSelection()); } }); POPUP_LAYOUT_FACTORY.applyTo(list.getTable()); LAYOUTDATA_GRAB_BOTH.applyTo(list.getTable()); list.addOpenListener(new IOpenListener() { public void open(OpenEvent event) { remmberItemAndClose(event.getSelection()); } }); list.setContentProvider(new IStructuredContentProvider() { public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public void dispose() { } public Object[] getElements(Object inputElement) { if (inputElement instanceof IFolder) { try { List<IFile> files = NavigationUtils.findGSPsInFolder((IFolder) inputElement); return files.toArray(); } catch (CoreException e1) { GrailsCoreActivator.log(e1); } } return new Object[0]; } }); IFolder f = elt.getGSPFolder(); if (f.isAccessible()) { list.setInput(f); } else { list.setInput(null); } Button b = new Button(composite, SWT.FLAT); b.setBackground(composite.getBackground()); b.setText("Create..."); b.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { openNewGSPWizard(); } public void widgetDefaultSelected(SelectionEvent e) { openNewGSPWizard(); } }); return composite; } protected void openNewGSPWizard() { NewGSPWizard wizard = new NewGSPWizard(); IFolder gspFolder = elt.getGSPFolder(); if (gspFolder != null) { wizard.init(PlatformUI.getWorkbench(), new StructuredSelection(gspFolder)); WizardDialog dialog = new WizardDialog(getParentShell(), wizard); close(); dialog.open(); } else { ErrorDialog.openError(getParentShell(), "Can't create GSP", "Can't create GSP file without Domain class.", new Status(IStatus.ERROR, GrailsEditorGroovyActivator.PLUGIN_ID, "Domain Class doesn't exist.")); close(); } } public IFile getResult() { return result; } protected void remmberItemAndClose(ISelection sel) { if (!sel.isEmpty() && sel instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) sel; if (ss.size() == 1) { result = (IFile) ss.getFirstElement(); } } close(); } @Override public int open() { // the super class is not modal. // we want to block for the dialog int res = super.open(); if (res == OK) { this.setBlockOnOpen(true); ReflectionUtils.executePrivateMethod(Window.class, "runEventLoop", new Class<?>[] { Shell.class }, this, new Object[] { getShell() }); } return res; } @Override protected IDialogSettings getDialogSettings() { final IDialogSettings workbenchDialogSettings = WorkbenchPlugin.getDefault().getDialogSettings(); IDialogSettings result = workbenchDialogSettings.getSection(getId()); if (result == null) { result = workbenchDialogSettings.addNewSection(getId()); } return result; } protected String getId() { return "org.grails.ide.eclipse.editor.gsp.gotoGSP"; //$NON-NLS-1$ } }