Java tutorial
/* * Copyright (c) 2013, 2015 Eike Stepper (Berlin, Germany) 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: * Christian W. Damus (CEA LIST) - initial API and implementation */ package org.eclipse.emf.cdo.security.internal.ui.editor; import static org.eclipse.emf.cdo.security.internal.ui.util.SecurityUIUtil.getTypeFilter; import static org.eclipse.emf.cdo.security.internal.ui.util.SecurityUIUtil.getViewerFilter; import org.eclipse.emf.cdo.eresource.CDOResourceNode; import org.eclipse.emf.cdo.eresource.EresourcePackage; import org.eclipse.emf.cdo.security.Access; import org.eclipse.emf.cdo.security.FilterPermission; import org.eclipse.emf.cdo.security.PatternStyle; import org.eclipse.emf.cdo.security.ResourceFilter; import org.eclipse.emf.cdo.security.Role; import org.eclipse.emf.cdo.security.SecurityFactory; import org.eclipse.emf.cdo.security.SecurityPackage; import org.eclipse.emf.cdo.security.internal.ui.dialogs.FilterTreeSelectionDialog; import org.eclipse.emf.cdo.security.internal.ui.messages.Messages; import org.eclipse.emf.cdo.security.internal.ui.util.EditableDialogCellEditor; import org.eclipse.emf.cdo.security.internal.ui.util.INewObjectConfigurator; import org.eclipse.emf.cdo.security.internal.ui.util.OneToManyTableBlock; import org.eclipse.emf.cdo.security.provider.SecurityEditPlugin; import org.eclipse.emf.cdo.ui.CDOItemProvider; import org.eclipse.emf.cdo.view.CDOView; import org.eclipse.net4j.util.ObjectUtil; import org.eclipse.net4j.util.container.IContainer; import org.eclipse.emf.common.command.Command; import org.eclipse.emf.common.notify.AdapterFactory; import org.eclipse.emf.edit.command.CommandParameter; import org.eclipse.emf.edit.command.CreateChildCommand; import org.eclipse.emf.edit.command.SetCommand; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CellEditor; import org.eclipse.jface.viewers.CellLabelProvider; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ComboBoxViewerCellEditor; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.ui.forms.widgets.FormToolkit; import java.util.Collections; /** * The details page for {@link Role} master selections. Includes a table * that provides in-line editing of resource-based permissions. * * @author Christian W. Damus (CEA LIST) */ public class RoleDetailsPage extends AbstractDetailsPage<Role> { public RoleDetailsPage(EditingDomain domain, AdapterFactory adapterFactory) { super(Role.class, SecurityPackage.Literals.ROLE, domain, adapterFactory); } @Override protected void createContents(Composite parent, FormToolkit toolkit) { super.createContents(parent, toolkit); text(parent, toolkit, Messages.RoleDetailsPage_0, SecurityPackage.Literals.ROLE__ID); space(parent, toolkit); OneToManyTableBlock perms = table(parent, toolkit, Messages.RoleDetailsPage_1, createTableConfiguration()); perms.setNewObjectConfigurator(createNewPermissionConfigurator()); space(parent, toolkit); oneToMany(parent, toolkit, Messages.RoleDetailsPage_2, SecurityPackage.Literals.ROLE__ASSIGNEES, SecurityPackage.Literals.GROUP); oneToMany(parent, toolkit, Messages.RoleDetailsPage_3, SecurityPackage.Literals.ROLE__ASSIGNEES, SecurityPackage.Literals.USER); } protected INewObjectConfigurator createNewPermissionConfigurator() { return new INewObjectConfigurator() { public Command createConfigureCommand(Object newObject) { ResourceFilter filter = SecurityFactory.eINSTANCE.createResourceFilter("/home/${user}", //$NON-NLS-1$ PatternStyle.TREE); Command result = CreateChildCommand.create( getEditingDomain(), newObject, new CommandParameter(newObject, SecurityPackage.Literals.FILTER_PERMISSION__FILTERS, filter), Collections.singleton(newObject)); result = result.chain(SetCommand.create(getEditingDomain(), newObject, SecurityPackage.Literals.PERMISSION__ACCESS, Access.WRITE)); return result; } }; } protected OneToManyTableBlock.ITableConfiguration createTableConfiguration() { return new OneToManyTableBlock.TableConfiguration(getManagedForm(), SecurityPackage.Literals.ROLE__PERMISSIONS, SecurityPackage.Literals.FILTER_PERMISSION) { private static final int COL_ACCESS = 0; private static final int COL_PATTERN_STYLE = 1; private static final int COL_PATH = 2; private final String[] columnTitles = { Messages.RoleDetailsPage_5, Messages.RoleDetailsPage_6, Messages.RoleDetailsPage_7 }; private final CellEditor[] cellEditors = new CellEditor[3]; public String[] getColumnTitles() { return columnTitles; } public int getColumnWeight(int index) { switch (index) { case COL_ACCESS: return 15; case COL_PATTERN_STYLE: return 15; case COL_PATH: return 70; default: throw new IllegalArgumentException("index"); //$NON-NLS-1$ } } public int getColumnMinimumSize(int index) { switch (index) { case COL_ACCESS: return 30; case COL_PATTERN_STYLE: return 30; case COL_PATH: return 120; default: throw new IllegalArgumentException("index"); //$NON-NLS-1$ } } public boolean isColumnResizable(int index) { switch (index) { case COL_ACCESS: return false; case COL_PATTERN_STYLE: return false; case COL_PATH: return true; default: throw new IllegalArgumentException("index"); //$NON-NLS-1$ } } public CellLabelProvider getLabelProvider(TableViewer viewer, final int columnIndex) { return new ColumnLabelProvider() { @Override public String getText(Object element) { final FilterPermission perm = (FilterPermission) element; final ResourceFilter filter = perm.getFilters().isEmpty() ? null : (ResourceFilter) perm.getFilters().get(0); switch (columnIndex) { case COL_ACCESS: return SecurityEditPlugin.INSTANCE .getString(String.format("_UI_Access_%s_literal", perm.getAccess())); //$NON-NLS-1$ case COL_PATTERN_STYLE: { String result = "=="; //$NON-NLS-1$ if (filter != null && filter.getPatternStyle() != null) { switch (filter.getPatternStyle()) { case EXACT: break; case TREE: result = ">="; //$NON-NLS-1$ break; default: result = "~="; //$NON-NLS-1$ break; } } return result; } case COL_PATH: return filter == null ? "" : filter.getPath(); //$NON-NLS-1$ default: throw new IllegalArgumentException("columnIndex"); //$NON-NLS-1$ } } }; } public boolean canEdit(TableViewer viewer, Object element, int columnIndex) { return true; } public void setValue(TableViewer viewer, Object element, int columnIndex, Object value) { final FilterPermission perm = (FilterPermission) element; final ResourceFilter filter = (ResourceFilter) perm.getFilters().get(0); switch (columnIndex) { case COL_ACCESS: if (perm.getAccess() != value) { execute(SetCommand.create(getEditingDomain(), perm, SecurityPackage.Literals.PERMISSION__ACCESS, value)); viewer.refresh(element); } break; case COL_PATTERN_STYLE: if (filter.getPatternStyle() != value) { execute(SetCommand.create(getEditingDomain(), filter, SecurityPackage.Literals.RESOURCE_FILTER__PATTERN_STYLE, value)); viewer.refresh(element); } break; case COL_PATH: if (!ObjectUtil.equals(filter.getPath(), value)) { execute(SetCommand.create(getEditingDomain(), filter, SecurityPackage.Literals.RESOURCE_FILTER__PATH, value)); viewer.refresh(element); } break; default: throw new IllegalArgumentException("columnIndex"); //$NON-NLS-1$ } } public Object getValue(TableViewer viewer, Object element, int columnIndex) { final FilterPermission perm = (FilterPermission) element; final ResourceFilter filter = (ResourceFilter) perm.getFilters().get(0); switch (columnIndex) { case COL_ACCESS: return perm.getAccess(); case COL_PATTERN_STYLE: return filter.getPatternStyle(); case COL_PATH: return filter.getPath(); default: throw new IllegalArgumentException("columnIndex"); //$NON-NLS-1$ } } public CellEditor getCellEditor(final TableViewer viewer, int columnIndex) { CellEditor result = cellEditors[columnIndex]; if (result == null) { result = createCellEditor(viewer, columnIndex); cellEditors[columnIndex] = result; } return result; } protected CellEditor createCellEditor(TableViewer viewer, int columnIndex) { Composite parent = (Composite) viewer.getControl(); switch (columnIndex) { case COL_ACCESS: { ComboBoxViewerCellEditor result = new ComboBoxViewerCellEditor(parent, SWT.DROP_DOWN | SWT.READ_ONLY); result.setLabelProvider(new AdapterFactoryLabelProvider(getAdapterFactory())); result.setContentProvider(new ArrayContentProvider()); result.setInput(Access.VALUES); return result; } case COL_PATTERN_STYLE: { ComboBoxViewerCellEditor result = new ComboBoxViewerCellEditor(parent, SWT.DROP_DOWN | SWT.READ_ONLY); result.setLabelProvider(new AdapterFactoryLabelProvider(getAdapterFactory())); result.setContentProvider(new ArrayContentProvider()); result.setInput(PatternStyle.VALUES); return result; } case COL_PATH: return new EditableDialogCellEditor(parent) { @Override protected Object openDialogBox(Control cellEditorWindow) { final CDOView view = getInput().cdoView(); @SuppressWarnings({ "rawtypes", "unchecked" }) CDOItemProvider provider = new CDOItemProvider(null) { private boolean connected; { // Connect the input now, because the dialog will try to access the content provider before it has // been set into the tree viewer connectInput((IContainer) view); } @Override protected void connectInput(IContainer<Object> input) { if (!connected) { super.connectInput(input); connected = true; } } @Override protected void disconnectInput(IContainer<Object> input) { if (connected) { connected = false; super.disconnectInput(input); } } }; FilterTreeSelectionDialog dlg = new FilterTreeSelectionDialog( cellEditorWindow.getShell(), provider, provider); dlg.setAllowMultiple(false); dlg.setMessage(Messages.RoleDetailsPage_4); dlg.setTitle(Messages.RoleDetailsPage_8); dlg.setDoubleClickSelects(true); dlg.addFilter( getViewerFilter(getTypeFilter(EresourcePackage.Literals.CDO_RESOURCE_NODE))); dlg.setBlockOnOpen(true); String current = (String) getValue(); dlg.setInput(view); if (current != null && view.hasResource(current)) { dlg.setInitialSelection(view.getResourceNode(current)); } String result = null; if (dlg.open() == Window.OK) { CDOResourceNode node = (CDOResourceNode) dlg.getFirstResult(); if (node != null) { result = node.getPath(); } } return result; } }; default: throw new IllegalArgumentException("columnIndex"); //$NON-NLS-1$ } } }; } }