Java tutorial
/* GanttProject is an opensource project management tool. License: GPL3 Copyright (C) 2003-2012 GanttProject Team 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package net.sourceforge.ganttproject.document.webdav; import io.milton.http.exceptions.NotAuthorizedException; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.net.MalformedURLException; import java.net.URL; import java.util.List; import java.util.concurrent.ExecutionException; import javax.swing.Action; import javax.swing.BorderFactory; import javax.swing.Box; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.SpringLayout; import javax.swing.SwingUtilities; import javax.swing.SwingWorker; import javax.swing.UIManager; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import net.sourceforge.ganttproject.GPLogger; import net.sourceforge.ganttproject.IGanttProject; import net.sourceforge.ganttproject.action.CancelAction; import net.sourceforge.ganttproject.action.GPAction; import net.sourceforge.ganttproject.action.OkAction; import net.sourceforge.ganttproject.document.webdav.WebDavResource.WebDavException; import net.sourceforge.ganttproject.gui.UIFacade; import net.sourceforge.ganttproject.gui.UIUtil; import net.sourceforge.ganttproject.gui.options.OptionsPageBuilder; import net.sourceforge.ganttproject.gui.options.SpringUtilities; import net.sourceforge.ganttproject.language.GanttLanguage; import net.sourceforge.ganttproject.util.collect.Pair; import org.divxdede.swing.busy.JBusyComponent; import org.jdesktop.swingx.JXHyperlink; import org.jdesktop.swingx.JXList; import biz.ganttproject.core.option.BooleanOption; import biz.ganttproject.core.option.ChangeValueEvent; import biz.ganttproject.core.option.ChangeValueListener; import biz.ganttproject.core.option.DefaultStringOption; import biz.ganttproject.core.option.EnumerationOption; import biz.ganttproject.core.option.IntegerOption; import biz.ganttproject.core.option.ListOption; import biz.ganttproject.core.option.StringOption; import com.google.common.base.Objects; import com.google.common.base.Predicate; import com.google.common.base.Strings; import com.google.common.collect.Lists; /** * UI component for WebDAV operarions. * * @author dbarashev (Dmitry Barashev) */ class GanttURLChooser { private static final GanttLanguage language = GanttLanguage.getInstance(); private final StringOption myUsername; private final StringOption myPassword; private final StringOption myPath; private final IntegerOption myTimeout; private SelectionListener mySelectionListener; private final ListOption<WebDavServerDescriptor> myServers; private final MiltonResourceFactory myWebDavFactory; private final GPAction myReloadAction = new GPAction("fileChooser.reload") { @Override public void actionPerformed(ActionEvent event) { if (!isEnabled()) { return; } reloadFilesTable(); } }; private final GPAction myUpAction = new GPAction("fileChooser.up") { @Override public void actionPerformed(ActionEvent event) { try { WebDavResource collection = tableModel.getCollection(); WebDavResource parent = collection.getParent(); if (parent != null && parent.exists() && parent.isCollection()) { new ReloadWorker(parent).execute(); myPath.setValue(new URL(parent.getUrl()).getPath()); } } catch (WebDavException e) { showError(e); } catch (MalformedURLException e) { showError(e); } } }; private final GPAction myLockAction = new GPAction("fileChooser.lock") { @Override public void actionPerformed(ActionEvent evt) { WebDavResource resource = getSelectedResource(); if (resource == null) { return; } try { if (!resource.isLocked()) { resource.lock(myTimeout.getValue() * 60); reloadFilesTable(); } } catch (WebDavException e) { showError(e); } } }; private final GPAction myUnlockAction = new GPAction("fileChooser.unlock") { @Override public void actionPerformed(ActionEvent evt) { WebDavResource resource = getSelectedResource(); if (resource == null) { return; } try { if (resource.isLocked()) { resource.unlock(); reloadFilesTable(); } } catch (WebDavException e) { showError(e); } } }; private final GPAction myDeleteAction = new GPAction("fileChooser.delete") { @Override public void actionPerformed(ActionEvent evt) { final WebDavResource resource = getSelectedResource(); if (resource == null) { return; } myUiFacade.showOptionDialog(JOptionPane.QUESTION_MESSAGE, GanttLanguage.getInstance().getText("fileChooser.delete.question"), new Action[] { new OkAction() { @Override public void actionPerformed(ActionEvent evt) { try { resource.delete(); } catch (WebDavException e) { showError(e); } } }, CancelAction.EMPTY }); } }; private final FilesTableModel tableModel = new FilesTableModel(); private JXList table; private JButton myLockButton; private final UIFacade myUiFacade; private final IGanttProject myProject; private JScrollPane myFilesComponent; private WebDavUri myInitialUri; private JLabel myPasswordLabel; private OkAction myOkAction; private final List<Runnable> myListenerRemovers = Lists.newArrayList(); private JBusyComponent<JComponent> myBusyComponent; static interface SelectionListener { public void setSelection(WebDavResource resource); } GanttURLChooser(IGanttProject project, UIFacade uiFacade, ListOption<WebDavServerDescriptor> servers, WebDavUri currentUri, StringOption username, StringOption password, IntegerOption lockTimeoutOption, BooleanOption releaseLockOption, MiltonResourceFactory webDavFactory) { myProject = project; myUiFacade = uiFacade; myWebDavFactory = webDavFactory; myPath = new DefaultStringOption("path"); myServers = servers; myUsername = username; myPassword = password; myTimeout = lockTimeoutOption; myInitialUri = currentUri; myListenerRemovers.add(myServers.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { myPath.setValue(""); updateUsernameAndPassword(); myReloadAction.actionPerformed(null); } })); myListenerRemovers.add(myUsername.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { if (myServers.getValue() != null) { myServers.getValue().username = myUsername.getValue(); } } })); myListenerRemovers.add(myPassword.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { if (myServers.getValue() != null) { myServers.getValue().password = myPassword.getValue(); } } })); } class ReloadWorker extends SwingWorker<Pair<WebDavResource, List<WebDavResource>>, Object> { private WebDavResource myResource; public ReloadWorker(WebDavResource resource) { myResource = resource; setProgressBar(true); } @Override protected Pair<WebDavResource, List<WebDavResource>> doInBackground() throws Exception { try { WebDavResource resource = myResource; if (resource.exists() && resource.isCollection()) { return Pair.create(resource, readChildren(resource)); } WebDavResource parent = resource.getParent(); if (parent.exists() && parent.isCollection()) { return Pair.create(parent, readChildren(parent)); } return null; } catch (WebDavException e) { showError(e); return null; } } private List<WebDavResource> readChildren(WebDavResource parent) throws WebDavException { List<WebDavResource> children = Lists.newArrayList(); for (WebDavResource child : parent.getChildResources()) { try { if (child.exists()) { children.add(child); } } catch (WebDavException e) { GPLogger.logToLogger(e); } } return children; } @Override protected void done() { try { Pair<WebDavResource, List<WebDavResource>> result = get(); if (result != null) { tableModel.setCollection(result.first(), result.second()); } } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ExecutionException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { setProgressBar(false); } } }; protected void reloadFilesTable() { myWebDavFactory.clearCache(); myWebDavFactory.setCredentials(myUsername.getValue(), myPassword.getValue()); WebDavUri webDavUri = buildUrl(); if (webDavUri != null) { new ReloadWorker(myWebDavFactory.createResource(webDavUri)).execute(); } } private boolean tryApplyUrl(WebDavUri currentUri) { WebDavServerDescriptor savedServer = findSavedServer(currentUri.buildRootUrl()); if (savedServer == null) { WebDavServerDescriptor server = new WebDavServerDescriptor( Strings.isNullOrEmpty(currentUri.hostName) ? currentUri.hostUrl : currentUri.hostName, currentUri.buildRootUrl(), ""); myServers.addValue(server); myServers.setValue(server); } else if (!savedServer.equals(myServers.getValue())) { myServers.setValue(savedServer); } myPath.setValue(currentUri.path); return true; } private WebDavServerDescriptor findSavedServer(String domainUrl) { for (WebDavServerDescriptor server : myServers.getValues()) { if (server.getRootUrl().equals(domainUrl)) { return server; } } return null; } public JComponent createOpenDocumentUi(OkAction openAction) { myOkAction = openAction; return createComponent(); } public JComponent createSaveDocumentUi(OkAction saveAction) { myOkAction = saveAction; return createComponent(); } private WebDavUri buildUrl() { WebDavServerDescriptor server = myServers.getValue(); if (server == null) { return null; } String host = server.getRootUrl().trim(); while (host.endsWith("/")) { host = host.substring(0, host.length() - 1); } String path = Objects.firstNonNull(myPath.getValue(), ""); if (!path.startsWith("/")) { path = "/" + path; } return new WebDavUri(server.name, host, path); } private WebDavResource getSelectedResource() { return (WebDavResource) table.getSelectedValue(); } private JComponent createComponent() { OptionsPageBuilder builder = new OptionsPageBuilder(); JPanel panel = new JPanel(new SpringLayout()); panel.add(new JLabel(language.getCorrectedLabel("webServer"))); EnumerationOption serverChoiceOption = myServers.asEnumerationOption(); panel.add(builder.createOptionComponent(null, serverChoiceOption)); panel.add(new JLabel()); panel.add(createUsernamePasswordPanel()); panel.add(new JLabel(language.getCorrectedLabel("fileFromServer"))); panel.add(builder.createOptionComponent(null, myPath)); myPath.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { String value = (String) event.getNewValue(); if (value == null) { return; } String lcValue = value.toLowerCase(); if (lcValue.startsWith("http://") || lcValue.startsWith("https://")) { if (!tryApplyUrl(new WebDavUri(value))) { myUpAction.setEnabled(value.split("/").length > 1); } } } }); addEmptyRow(panel); { JPanel filesTablePanel = new JPanel(new BorderLayout()); JButton refreshButton = new JButton(myReloadAction); JButton upButton = new JButton(myUpAction); myLockButton = new JButton(myLockAction); panel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(myUpAction.getKeyStroke(), myUpAction); panel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(myReloadAction.getKeyStroke(), myReloadAction); panel.getActionMap().put(myUpAction, myUpAction); panel.getActionMap().put(myReloadAction, myReloadAction); upButton.setText(""); refreshButton.setText(""); Box filesHeaderBox = Box.createVerticalBox(); filesHeaderBox.add(upButton); filesHeaderBox.add(Box.createVerticalStrut(5)); filesHeaderBox.add(refreshButton); filesHeaderBox.add(Box.createVerticalGlue()); filesHeaderBox.add(new JButton(myDeleteAction)); filesHeaderBox.add(Box.createVerticalStrut(5)); filesHeaderBox.add(myLockButton); filesTablePanel.add(filesHeaderBox, BorderLayout.EAST); filesHeaderBox.setBorder(BorderFactory.createEmptyBorder(0, 3, 0, 0)); table = new JXList(tableModel); table.setHighlighters(UIUtil.ZEBRA_HIGHLIGHTER); table.setCellRenderer(new FilesCellRenderer()); table.addListSelectionListener(new ListSelectionListener() { @Override public void valueChanged(ListSelectionEvent e) { WebDavResource resource = getSelectedResource(); if (resource == null) { return; } onSelectionChanged(resource); } }); table.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 2) { tryEnterCollection(table, tableModel); } } }); table.addKeyListener(new KeyAdapter() { @Override public void keyReleased(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_ENTER) { tryEnterCollection(table, tableModel); } } }); myFilesComponent = new JScrollPane(table); myFilesComponent.setMaximumSize(table.getPreferredScrollableViewportSize()); filesTablePanel.add(myFilesComponent, BorderLayout.CENTER); panel.add(new JLabel(language.getText("fileChooser.fileList"))); panel.add(filesTablePanel); } addEmptyRow(panel); SpringUtilities.makeCompactGrid(panel, 6, 2, 0, 0, 10, 5); panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5)); panel.setMaximumSize(new Dimension(Integer.MAX_VALUE, panel.getPreferredSize().height)); Box properties = Box.createVerticalBox(); properties.add(panel); properties.add(Box.createVerticalGlue()); myBusyComponent = new JBusyComponent<JComponent>(properties); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { if (myInitialUri != null) { tryApplyUrl(myInitialUri); } reloadFilesTable(); } }); return myBusyComponent; } private void setProgressBar(boolean b) { myBusyComponent.setBusy(b); } private Component createUsernamePasswordPanel() { JPanel grid = new JPanel(new GridLayout(3, 2)); grid.add(new JLabel(language.getText("userName"))); final JLabel username = new JLabel(myUsername.getValue()); myUsername.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { username.setText(myUsername.getValue() == null ? "" : myUsername.getValue()); } }); grid.add(username); grid.add(new JLabel(language.getText("password"))); myPasswordLabel = new JLabel( myPassword.getValue() == null ? "" : Strings.repeat("*", myPassword.getValue().length())); myPassword.addChangeValueListener(new ChangeValueListener() { @Override public void changeValue(ChangeValueEvent event) { UIUtil.clearErrorLabel(myPasswordLabel); myPasswordLabel.setText( myPassword.getValue() == null ? "" : Strings.repeat("*", myPassword.getValue().length())); } }); grid.add(myPasswordLabel); grid.add(new JXHyperlink(new GPAction("webdav.configure") { @Override public void actionPerformed(ActionEvent arg0) { WebDavOptionPageProvider optionPage = new WebDavOptionPageProvider(); optionPage.init(myProject, myUiFacade); myUiFacade.createDialog(optionPage.buildPageComponent(), new Action[] { CancelAction.CLOSE }, "") .show(); updateUsernameAndPassword(); myReloadAction.actionPerformed(null); } })); UIUtil.walkComponentTree(grid, new Predicate<JComponent>() { @Override public boolean apply(JComponent input) { input.setFont(input.getFont().deriveFont(input.getFont().getSize() * 0.82f)); return true; } }); Box result = Box.createHorizontalBox(); result.add(grid); result.add(Box.createHorizontalGlue()); return grid; } private void updateUsernameAndPassword() { WebDavServerDescriptor server = myServers.getValue(); myUsername.setValue(server == null ? "" : server.username); myPassword.setValue(server == null ? "" : server.password); setWebDavActionsEnabled( !Strings.isNullOrEmpty(myUsername.getValue()) && !Strings.isNullOrEmpty(myPassword.getValue())); } private void setWebDavActionsEnabled(boolean value) { myDeleteAction.setEnabled(value); myLockAction.setEnabled(value); myReloadAction.setEnabled(value); myUpAction.setEnabled(value); myOkAction.setEnabled(value); } protected void onSelectionChanged(WebDavResource resource) { if (mySelectionListener != null) { mySelectionListener.setSelection(resource); } myPath.setValue(resource.getWebDavUri().path); try { if (resource.isLocked()) { myLockButton.setAction(myUnlockAction); } else { myLockButton.setAction(myLockAction); } } catch (WebDavException e) { GPLogger.logToLogger(e); } } protected void tryEnterCollection(JXList table, FilesTableModel tableModel) { WebDavResource resource = (WebDavResource) table.getSelectedValue(); try { if (resource.isCollection()) { new ReloadWorker(resource).execute(); } } catch (WebDavException e) { showError(e); } } private static void addEmptyRow(JPanel form) { form.add(Box.createRigidArea(new Dimension(1, 10))); form.add(Box.createRigidArea(new Dimension(1, 10))); } WebDavUri getUrl() { return buildUrl(); } String getUsername() { return myUsername.getValue(); } String getPassword() { return myPassword.getValue(); } int getLockTimeout() { return myTimeout.getValue(); } void setSelectionListener(SelectionListener selectionListener) { mySelectionListener = selectionListener; } StringOption getPathOption() { return myPath; } void showError(Exception e) { if (e.getCause() instanceof NotAuthorizedException) { UIUtil.setupErrorLabel(myPasswordLabel, "Access denied"); setWebDavActionsEnabled(false); } GPLogger.log(e); } public void dispose() { for (Runnable remover : myListenerRemovers) { remover.run(); } } }