Java tutorial
/******************************************************************************* * Copyright (c) 2014 Bruno Medeiros and other Contributors. * 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: * Bruno Medeiros - initial API and implementation *******************************************************************************/ package com.googlecode.goclipse.ui; import static melnorme.utilbox.core.Assert.AssertNamespace.assertFail; import static melnorme.utilbox.core.Assert.AssertNamespace.assertNotNull; import org.eclipse.jface.preference.IPreferenceNode; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.dialogs.PreferencesUtil; import org.osgi.framework.BundleContext; import melnorme.lang.ide.core.LangCore_Actual; import melnorme.lang.ide.ui.LangUIPlugin; import melnorme.lang.ide.ui.utils.WorkbenchUtils; import melnorme.lang.tooling.common.ops.IOperationMonitor; import melnorme.utilbox.core.CommonException; public class GoUIPlugin extends LangUIPlugin { @Override protected GoOperationsConsoleUIHandler createOperationsConsoleListener() { return new GoOperationsConsoleUIHandler(); } @Override protected void doInitializeAfterLoad(IOperationMonitor om) throws CommonException { checkPrefPageIdIsValid(LangCore_Actual.TOOLS_PREF_PAGE_ID); } protected void checkPrefPageIdIsValid(String prefId) { Shell shell = WorkbenchUtils.getActiveWorkbenchShell(); PreferenceDialog prefDialog = PreferencesUtil.createPreferenceDialogOn(shell, prefId, null, null); assertNotNull(prefDialog); // Don't create, just eagerly check that it exits, that the ID is correct ISelection selection = prefDialog.getTreeViewer().getSelection(); if (selection instanceof IStructuredSelection) { IStructuredSelection ss = (IStructuredSelection) selection; if (ss.getFirstElement() instanceof IPreferenceNode) { IPreferenceNode prefNode = (IPreferenceNode) ss.getFirstElement(); if (prefNode.getId().equals(prefId)) { return; // Id exists } } } assertFail(); } @Override protected void doCustomStop(BundleContext context) { } }