Java tutorial
/* * JBoss by Red Hat * Copyright 2006-2009, Red Hat Middleware, LLC, and individual contributors as indicated * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.jboss.ide.eclipse.freemarker.outline; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.core.search.SearchEngine; import org.eclipse.jdt.ui.IJavaElementSearchConstants; import org.eclipse.jdt.ui.JavaUI; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IStatusLineManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeItem; import org.eclipse.ui.dialogs.SelectionDialog; import org.eclipse.ui.views.contentoutline.ContentOutlinePage; import org.jboss.ide.eclipse.freemarker.Messages; import org.jboss.ide.eclipse.freemarker.Plugin; import org.jboss.ide.eclipse.freemarker.configuration.ConfigurationManager; import org.jboss.ide.eclipse.freemarker.configuration.ContextValue; import org.jboss.ide.eclipse.freemarker.editor.Editor; import org.jboss.ide.eclipse.freemarker.model.Interpolation; import org.jboss.ide.eclipse.freemarker.model.Item; import org.jboss.ide.eclipse.freemarker.model.ItemSet; /** * @author <a href="mailto:joe@binamics.com">Joe Hudson</a> */ public class OutlinePage extends ContentOutlinePage implements IDoubleClickListener { private Editor fEditor; private Object fInput; private OutlineLabelProvider fLabelProvider; public OutlinePage(Editor anEditor) { fEditor = anEditor; } /** * @see org.eclipse.ui.part.IPart#createControl(Composite) */ @Override public void createControl(Composite aParent) { super.createControl(aParent); fLabelProvider = new OutlineLabelProvider(); // Init tree viewer TreeViewer viewer = getTreeViewer(); viewer.setContentProvider(new OutlineContentProvider(fEditor)); viewer.setLabelProvider(fLabelProvider); viewer.addSelectionChangedListener(this); viewer.addDoubleClickListener(this); if (fInput != null) { viewer.setInput(fInput); } // Refresh outline according to initial cursor position update(null); } public void setInput(Object aInput) { fInput = aInput; update(null); } private ItemSet selectedItemSet; private Item selectedItem; public void update(Item item) { if ((null == item && null != selectedItem) || null == selectedItem && null != item || (null != item && null != selectedItem && !item.equals(selectedItem))) { if (null == selectedItemSet || !fEditor.getItemSet().equals(selectedItemSet)) { TreeViewer viewer = getTreeViewer(); if (viewer != null) { Control control = viewer.getControl(); if (control != null && !control.isDisposed()) { viewer.removeSelectionChangedListener(this); control.setRedraw(false); viewer.setInput(fInput); control.setRedraw(true); viewer.expandToLevel(3); } } selectedItemSet = fEditor.getItemSet(); } select(item); } selectedItem = item; selectedItemSet = fEditor.getItemSet(); } public void select(Item item) { if (null != item && item.isEndItem()) item = item.getStartItem(); if (null != getTreeViewer()) { if (null == item) { getTreeViewer().setSelection(new StructuredSelection(new Object[0]), true); } else { getTreeViewer().setSelection(new StructuredSelection(item), true); } } } /** * @see org.eclipse.ui.part.Page#dispose() */ @Override public void dispose() { super.dispose(); } @Override public void doubleClick(DoubleClickEvent event) { IStructuredSelection selection = (IStructuredSelection) event.getSelection(); Item item = (Item) selection.getFirstElement(); if (null != item) { fEditor.select(item); } } @Override public void makeContributions(IMenuManager menuManager, IToolBarManager toolBarManager, IStatusLineManager statusLineManager) { MenuManager menuMgr = new MenuManager(); Menu menu = menuMgr.createContextMenu(getTreeViewer().getTree()); menuMgr.add(new SetContextEntryAction(this)); getTreeViewer().getTree().setMenu(menu); super.makeContributions(menuManager, toolBarManager, statusLineManager); } /** Made public for the sake of testing. * @see org.eclipse.ui.views.contentoutline.ContentOutlinePage#getTreeViewer() */ @Override public TreeViewer getTreeViewer() { return super.getTreeViewer(); } public void refresh() { getTreeViewer().refresh(); } public class SetContextEntryAction extends Action { public SetContextEntryAction(OutlinePage outlinePage) { this.setText(Messages.OutlinePage_SetContextClassEntryAction); this.setEnabled(true); } @Override public void runWithEvent(Event event) { Tree tree = getTreeViewer().getTree(); TreeItem[] items = tree.getSelection(); Interpolation interpolation = null; for (int i = 0; i < items.length; i++) { TreeItem item = items[i]; if (item.getData() instanceof Interpolation) { interpolation = (Interpolation) item.getData(); try { SelectionDialog sd = JavaUI.createTypeDialog(new Shell(), null, SearchEngine.createWorkspaceScope(), IJavaElementSearchConstants.CONSIDER_CLASSES_AND_INTERFACES, false); sd.open(); Object[] objects = sd.getResult(); if (null != objects && objects.length > 0) { ConfigurationManager configuration = ConfigurationManager .getInstance(interpolation.getResource().getProject()); IType type = (IType) objects[0]; try { configuration.addContextValue( new ContextValue(interpolation.getFirstToken(), configuration.getClass(type.getFullyQualifiedName()), null), interpolation.getResource()); } catch (ClassNotFoundException e) { Plugin.log(e); } } } catch (JavaModelException jme) { Plugin.error(jme); } } } } } }