Java tutorial
/******************************************************************************* * PGPTool is a desktop application for pgp encryption/decryption * Copyright (C) 2017 Sergey Karpushin * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/> *******************************************************************************/ package org.pgptool.gui.ui.keyslist; import java.awt.event.ActionEvent; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.ArrayList; import java.util.Comparator; import java.util.List; import javax.swing.Action; import org.pgptool.gui.encryption.api.KeyFilesOperations; import org.pgptool.gui.encryption.api.KeyRingService; import org.pgptool.gui.encryption.api.dto.Key; import org.pgptool.gui.ui.tools.UiUtils; import org.springframework.beans.factory.annotation.Autowired; import org.summerb.approaches.jdbccrud.api.dto.EntityChangedEvent; import com.google.common.base.Preconditions; import com.google.common.eventbus.EventBus; import com.google.common.eventbus.Subscribe; import ru.skarpushin.swingpm.base.PresentationModelBase; import ru.skarpushin.swingpm.modelprops.ModelProperty; import ru.skarpushin.swingpm.modelprops.ModelPropertyAccessor; import ru.skarpushin.swingpm.modelprops.table.ModelTableProperty; import ru.skarpushin.swingpm.modelprops.table.ModelTablePropertyAccessor; import ru.skarpushin.swingpm.tools.actions.LocalizedAction; import ru.skarpushin.swingpm.valueadapters.ValueAdapterHolderImpl; public class KeysListPm extends PresentationModelBase { // private static Logger log = Logger.getLogger(KeysListPm.class); @Autowired private EventBus eventBus; @Autowired // @Resource(name = "keyRingService") private KeyRingService keyRingService; @Autowired // @Resource(name = "keyFilesOperations") private KeyFilesOperations keyFilesOperations; @Autowired private KeysExporterUi keysExporterUi; private KeysListHost host; private ModelTableProperty<Key> tableModelProp; private ModelProperty<Boolean> hasData; private Comparator<Key> keySorterByNameAsc = new ComparatorKeyByNameImpl(); public void init(KeysListHost host) { Preconditions.checkArgument(host != null); this.host = host; List<Key> initialKeys = keyRingService.readKeys(); initialKeys.sort(keySorterByNameAsc); tableModelProp = new ModelTableProperty<>(this, initialKeys, "keys", new KeysTableModel()); hasData = new ModelProperty<>(this, new ValueAdapterHolderImpl<>(!initialKeys.isEmpty()), "hasData"); tableModelProp.getModelPropertyAccessor().addPropertyChangeListener(onSelectionChangedHandler); onSelectionChangedHandler.propertyChange(null); actionExportAllPublicKeys.setEnabled(hasData.getValue()); eventBus.register(this); } private PropertyChangeListener onSelectionChangedHandler = new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { Key key = tableModelProp.getValue(); boolean hasSelection = key != null; for (int i = 0; i < contextMenuActions.length; i++) { Action action = contextMenuActions[i]; if (action == null) { continue; } ((Action) action).setEnabled(hasSelection); } actionExportPrivateKey.setEnabled(key != null && key.getKeyData().isCanBeUsedForDecryption()); } }; @Subscribe public void onRowChangedEvent(EntityChangedEvent<?> event) { if (!event.isTypeOf(Key.class)) { return; } List<Key> newKeysList = keyRingService.readKeys(); newKeysList.sort(keySorterByNameAsc); tableModelProp.getList().clear(); tableModelProp.getList().addAll(newKeysList); hasData.setValueByOwner(!newKeysList.isEmpty()); actionExportAllPublicKeys.setEnabled(hasData.getValue()); // NOTE: Selection is not nicely maintained. Each update will clear the // current selection if any } @Override public void detach() { super.detach(); eventBus.unregister(this); } @SuppressWarnings("serial") private Action actionClose = new LocalizedAction("action.close") { @Override public void actionPerformed(ActionEvent e) { host.handleClose(); } }; @SuppressWarnings("serial") private Action actionActivate = new LocalizedAction("action.activate") { @Override public void actionPerformed(ActionEvent e) { // TODO: Impl } }; @SuppressWarnings("serial") private Action actionDeleteKey = new LocalizedAction("action.deleteKey") { @Override public void actionPerformed(ActionEvent e) { if (!tableModelProp.hasValue()) { // silently exit -- not going to complain return; } Key key = tableModelProp.getValue(); if (!UiUtils.confirm("phrase.areYouSureToDeleteKey", new Object[] { key.getKeyInfo().getUser() }, findRegisteredWindowIfAny())) { return; } keyRingService.removeKey(key); } }; @SuppressWarnings("serial") private Action actionExportPublicKey = new LocalizedAction("action.exportPublicKey") { @Override public void actionPerformed(ActionEvent e) { if (!tableModelProp.hasValue()) { return; } Key key = tableModelProp.getValue(); keysExporterUi.exportPublicKey(key, findRegisteredWindowIfAny()); } }; @SuppressWarnings("serial") private Action actionExportPrivateKey = new LocalizedAction("action.exportPrivateKey") { @Override public void actionPerformed(ActionEvent e) { if (!tableModelProp.hasValue()) { return; } Key key = tableModelProp.getValue(); keysExporterUi.exportPrivateKey(key, findRegisteredWindowIfAny()); } }; @SuppressWarnings("serial") public Action actionExportAllPublicKeys = new LocalizedAction("keys.exportAllPublic") { @Override public void actionPerformed(ActionEvent e) { ArrayList<Key> keys = new ArrayList<>(tableModelProp.getList()); Preconditions.checkState(keys.size() > 0, "Export all public keys action was triggered while there is no keys to export"); keysExporterUi.exportPublicKeys(keys, findRegisteredWindowIfAny()); } }; private Action[] contextMenuActions = new Action[] { actionExportPublicKey, actionExportPrivateKey, null, actionDeleteKey }; private KeysTablePm keysTablePm = new KeysTablePm() { @Override public Action getActionForRowDoubleClick() { return actionActivate; } @Override public ModelTablePropertyAccessor<Key> getKeys() { return tableModelProp.getModelTablePropertyAccessor(); } @Override public ModelPropertyAccessor<Key> getSelectedRow() { return tableModelProp.getModelPropertyAccessor(); } @Override public ModelPropertyAccessor<Boolean> getHasData() { return hasData.getModelPropertyAccessor(); } @Override public Action getActionDelete() { return actionDeleteKey; } @Override public Action[] getContextMenuActions() { return contextMenuActions; } }; protected Action getActionClose() { return actionClose; } protected Action getActionImport() { return host.getActionImportKey(); } protected Action getActionCreate() { return host.getActionCreateKey(); } public KeysTablePm getKeysTablePm() { return keysTablePm; } }