// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.preferences.server;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.AbstractAction;
import javax.swing.JCheckBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.JTextComponent;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.gui.SideButton;
import org.openstreetmap.josm.gui.help.HelpUtil;
import org.openstreetmap.josm.gui.widgets.AbstractTextComponentValidator;
import org.openstreetmap.josm.gui.widgets.JosmTextField;
import org.openstreetmap.josm.gui.widgets.SelectAllOnFocusGainedDecorator;
import org.openstreetmap.josm.io.OsmApi;
import org.openstreetmap.josm.tools.ImageProvider;
import org.openstreetmap.josm.tools.Utils;
/**
* Component allowing input os OSM API URL.
*/
public class OsmApiUrlInputPanel extends JPanel {
/**
* OSM API URL property key.
*/
public static final String API_URL_PROP = OsmApiUrlInputPanel.class.getName() + ".apiUrl";
private JLabel lblValid;
private JLabel lblApiUrl;
private JosmTextField tfOsmServerUrl;
private ApiUrlValidator valOsmServerUrl;
private SideButton btnTest;
/** indicates whether to use the default OSM URL or not */
private JCheckBox cbUseDefaultServerUrl;
private ApiUrlPropagator propagator;
protected JComponent buildDefaultServerUrlPanel() {
cbUseDefaultServerUrl = new JCheckBox(tr("<html>Use the default OSM server URL (<strong>{0}</strong>)</html>", OsmApi.DEFAULT_API_URL));
cbUseDefaultServerUrl.addItemListener(new UseDefaultServerUrlChangeHandler());
cbUseDefaultServerUrl.setFont(cbUseDefaultServerUrl.getFont().deriveFont(Font.PLAIN));
return cbUseDefaultServerUrl;
}
protected final void build() {
setLayout(new GridBagLayout());
GridBagConstraints gc = new GridBagConstraints();
// the checkbox for the default UL
gc.fill = GridBagConstraints.HORIZONTAL;
gc.anchor = GridBagConstraints.NORTHWEST;
gc.weightx = 1.0;
gc.insets = new Insets(0,0,0,0);
gc.gridwidth = 4;
add(buildDefaultServerUrlPanel(), gc);
// the input field for the URL
gc.gridx = 0;
gc.gridy = 1;
gc.gridwidth = 1;
gc.weightx = 0.0;
gc.insets = new Insets(0,0,0,3);
add(lblApiUrl = new JLabel(tr("OSM Server URL:")), gc);
gc.gridx = 1;
gc.weightx = 1.0;
add(tfOsmServerUrl = new JosmTextField(), gc);
SelectAllOnFocusGainedDecorator.decorate(tfOsmServerUrl);
valOsmServerUrl = new ApiUrlValidator(tfOsmServerUrl);
valOsmServerUrl.validate();
propagator = new ApiUrlPropagator();
tfOsmServerUrl.addActionListener(propagator);
tfOsmServerUrl.addFocusListener(propagator);
gc.gridx = 2;
gc.weightx = 0.0;
add(lblValid = new JLabel(), gc);
gc.gridx = 3;
gc.weightx = 0.0;
ValidateApiUrlAction actTest = new ValidateApiUrlAction();
tfOsmServerUrl.getDocument().addDocumentListener(actTest);
add(btnTest = new SideButton(actTest), gc);
}
/**
* Constructs a new {@code OsmApiUrlInputPanel}.
*/
public OsmApiUrlInputPanel() {
build();
HelpUtil.setHelpContext(this, HelpUtil.ht("/Preferences/Connection#ApiUrl"));
}
/**
* Initializes the configuration panel with values from the preferences
*/
public void initFromPreferences() {
String url = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
if (url.trim().equals(OsmApi.DEFAULT_API_URL)) {
cbUseDefaultServerUrl.setSelected(true);
propagator.propagate(OsmApi.DEFAULT_API_URL);
} else {
cbUseDefaultServerUrl.setSelected(false);
tfOsmServerUrl.setText(url);
propagator.propagate(url);
}
}
/**
* Saves the values to the preferences
*/
public void saveToPreferences() {
String oldUrl = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
String hmiUrl = getStrippedApiUrl();
if (cbUseDefaultServerUrl.isSelected()) {
Main.pref.put("osm-server.url", null);
} else if (hmiUrl.equals(OsmApi.DEFAULT_API_URL)) {
Main.pref.put("osm-server.url", null);
} else {
Main.pref.put("osm-server.url", hmiUrl);
}
String newUrl = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
// When API URL changes, re-initialize API connection so we may adjust
// server-dependent settings.
if (!oldUrl.equals(newUrl)) {
try {
OsmApi.getOsmApi().initialize(null);
} catch (Exception x) {
Main.warn(x);
}
}
}
/**
* Returns the entered API URL, stripped of leading and trailing white characters.
* @return the entered API URL, stripped of leading and trailing white characters.
* May be an empty string if nothing has been entered. In this case, it means the user wants to use {@link OsmApi#DEFAULT_API_URL}.
* @see Utils#strip(String)
* @since 6602
*/
public final String getStrippedApiUrl() {
return Utils.strip(tfOsmServerUrl.getText());
}
class ValidateApiUrlAction extends AbstractAction implements DocumentListener {
private String lastTestedUrl = null;
public ValidateApiUrlAction() {
putValue(NAME, tr("Validate"));
putValue(SHORT_DESCRIPTION, tr("Test the API URL"));
updateEnabledState();
}
@Override
public void actionPerformed(ActionEvent arg0) {
final String url = getStrippedApiUrl();
final ApiUrlTestTask task = new ApiUrlTestTask(OsmApiUrlInputPanel.this, url);
Main.worker.submit(task);
Runnable r = new Runnable() {
@Override
public void run() {
if (task.isCanceled())
return;
Runnable r = new Runnable() {
@Override
public void run() {
if (task.isSuccess()) {
lblValid.setIcon(ImageProvider.get("dialogs", "valid"));
lblValid.setToolTipText(tr("The API URL is valid."));
lastTestedUrl = url;
updateEnabledState();
} else {
lblValid.setIcon(ImageProvider.get("warning-small"));
lblValid.setToolTipText(tr("Validation failed. The API URL seems to be invalid."));
}
}
};
SwingUtilities.invokeLater(r);
}
};
Main.worker.submit(r);
}
protected final void updateEnabledState() {
String url = getStrippedApiUrl();
boolean enabled = !url.isEmpty() && !url.equals(lastTestedUrl);
if (enabled) {
lblValid.setIcon(null);
}
setEnabled(enabled);
}
@Override
public void changedUpdate(DocumentEvent arg0) {
updateEnabledState();
}
@Override
public void insertUpdate(DocumentEvent arg0) {
updateEnabledState();
}
@Override
public void removeUpdate(DocumentEvent arg0) {
updateEnabledState();
}
}
/**
* Enables or disables the API URL input.
* @param enabled {@code true} to enable input, {@code false} otherwise
*/
public void setApiUrlInputEnabled(boolean enabled) {
lblApiUrl.setEnabled(enabled);
tfOsmServerUrl.setEnabled(enabled);
lblValid.setEnabled(enabled);
btnTest.setEnabled(enabled);
}
private static class ApiUrlValidator extends AbstractTextComponentValidator {
public ApiUrlValidator(JTextComponent tc) throws IllegalArgumentException {
super(tc);
}
@Override
public boolean isValid() {
if (getComponent().getText().trim().isEmpty())
return false;
try {
new URL(getComponent().getText().trim());
return true;
} catch(MalformedURLException e) {
return false;
}
}
@Override
public void validate() {
if (getComponent().getText().trim().isEmpty()) {
feedbackInvalid(tr("OSM API URL must not be empty. Please enter the OSM API URL."));
return;
}
if (!isValid()) {
feedbackInvalid(tr("The current value is not a valid URL"));
} else {
feedbackValid(tr("Please enter the OSM API URL."));
}
}
}
/**
* Handles changes in the default URL
*/
class UseDefaultServerUrlChangeHandler implements ItemListener {
@Override
public void itemStateChanged(ItemEvent e) {
switch(e.getStateChange()) {
case ItemEvent.SELECTED:
setApiUrlInputEnabled(false);
propagator.propagate(OsmApi.DEFAULT_API_URL);
break;
case ItemEvent.DESELECTED:
setApiUrlInputEnabled(true);
valOsmServerUrl.validate();
tfOsmServerUrl.requestFocusInWindow();
propagator.propagate();
break;
}
}
}
class ApiUrlPropagator extends FocusAdapter implements ActionListener {
public void propagate() {
propagate(getStrippedApiUrl());
}
public void propagate(String url) {
firePropertyChange(API_URL_PROP, null, url);
}
@Override
public void actionPerformed(ActionEvent e) {
propagate();
}
@Override
public void focusLost(FocusEvent arg0) {
propagate();
}
}
}