Add URI widget

pom.xml

@@ -112,6 +112,7 @@
 
 		<jdatepicker.version>1.3.2</jdatepicker.version>
 		<object-inspector.version>0.1</object-inspector.version>
+		<scijava-common.version>99.0</scijava-common.version>
 	</properties>
 
 	<repositories>

src/main/java/org/scijava/ui/swing/widget/SwingFileWidget.java

@@ -321,7 +321,7 @@ public static List<File> filterFiles(final List<File> list,
 
 	// -- Helper classes --
 
-	private class FileTransferHandler extends TransferHandler {
+	public static class FileTransferHandler extends TransferHandler {
 
 		private final String style;
 

src/main/java/org/scijava/ui/swing/widget/SwingURIWidget.java

@@ -0,0 +1,174 @@
+/*
+ * #%L
+ * SciJava UI components for Java Swing.
+ * %%
+ * Copyright (C) 2010 - 2023 SciJava developers.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+
+package org.scijava.ui.swing.widget;
+
+import org.scijava.plugin.Parameter;
+import org.scijava.plugin.Plugin;
+import org.scijava.ui.UIService;
+import org.scijava.widget.FileWidget;
+import org.scijava.widget.InputWidget;
+import org.scijava.widget.URIWidget;
+import org.scijava.widget.WidgetModel;
+
+import javax.swing.Box;
+import javax.swing.JButton;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.File;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+/**
+ * Swing implementation of URI selector widget.
+ * 
+ * @author Christian Tischer
+ * @author Jan Eglinger
+ */
+@Plugin(type = InputWidget.class)
+public class SwingURIWidget extends SwingInputWidget<URI> implements
+	URIWidget<JPanel>, ActionListener, DocumentListener
+{
+
+	@Parameter
+	private UIService uiService;
+
+	private JTextField uriTextField;
+	private JButton browse;
+
+	// -- InputWidget methods --
+
+	@Override
+	public URI getValue() {
+		final String text = uriTextField.getText();
+		if (text.isEmpty()) {
+			return null;
+		}
+		File file = new File(text);
+		try
+		{
+			if (file.exists() || file.isAbsolute()) {
+				return file.toURI();
+			}
+			return new URI(text);
+		} catch ( URISyntaxException e )
+		{
+			return null;
+		}
+	}
+
+	// -- WrapperPlugin methods --
+
+	@Override
+	public void set(final WidgetModel model) {
+		super.set(model);
+
+		uriTextField = new JTextField(16);
+		uriTextField.setDragEnabled(true);
+		final String style = model.getItem().getWidgetStyle();
+		uriTextField.setTransferHandler(new SwingFileWidget.FileTransferHandler(style));
+		setToolTip( uriTextField );
+		getComponent().add( uriTextField );
+		uriTextField.getDocument().addDocumentListener(this);
+
+		getComponent().add(Box.createHorizontalStrut(3));
+
+		browse = new JButton("Browse");
+		setToolTip(browse);
+		getComponent().add(browse);
+		browse.addActionListener(this);
+
+		refreshWidget();
+	}
+
+	// -- Typed methods --
+
+	@Override
+	public boolean supports(final WidgetModel model) {
+		return super.supports(model) && model.isType(URI.class);
+	}
+
+	// -- ActionListener methods --
+
+	@Override
+	public void actionPerformed(final ActionEvent e) {
+		File file = new File(uriTextField.getText());
+
+		if (!file.isDirectory()) {
+			file = file.getParentFile();
+		}
+
+		// display file chooser in appropriate mode
+		final WidgetModel model = get();
+		final String style;
+		if (model.isStyle(FileWidget.DIRECTORY_STYLE)) {
+			style = FileWidget.DIRECTORY_STYLE;
+		}
+		else if (model.isStyle(FileWidget.SAVE_STYLE)) {
+			style = FileWidget.SAVE_STYLE;
+		}
+		else {
+			style = FileWidget.OPEN_STYLE;
+		}
+		file = uiService.chooseFile(file, style);
+		if (file == null) return;
+
+		uriTextField.setText(file.getAbsolutePath());
+	}
+
+	// -- DocumentListener methods --
+
+	@Override
+	public void changedUpdate(final DocumentEvent e) {
+		updateModel();
+	}
+
+	@Override
+	public void insertUpdate(final DocumentEvent e) {
+		updateModel();
+	}
+
+	@Override
+	public void removeUpdate(final DocumentEvent e) {
+		updateModel();
+	}
+
+	// -- AbstractUIInputWidget methods ---
+
+	@Override
+	public void doRefresh() {
+//		final String text = get().getText();
+//		if (text.equals( uriTextField.getText())) return; // no change
+//		uriTextField.setText(text);
+	}
+}

src/test/java/org/scijava/ui/swing/URITest.java

@@ -0,0 +1,26 @@
+package org.scijava.ui.swing;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+public class URITest
+{
+    public static void main( String[] args ) throws URISyntaxException, MalformedURLException
+    {
+        File f = new File("tischer");
+        System.out.println(f.toURI());
+        System.out.println( new URI( "file", "/tischer/test.txt" , null).toString() );
+        URI uri = new URI( "file:/path/to/local/file.txt" );
+        System.out.println( uri.getScheme() );
+        URL url = uri.toURL();
+        System.out.println(url.getFile());
+        if ( uri.getScheme().equals( "file" ) )
+        {
+            File file = new File( uri.toURL().getPath() );
+            System.out.println( file.getAbsolutePath() );
+        }
+    }
+}

src/test/java/org/scijava/ui/swing/widget/SwingURIWidgetDemo.java

@@ -0,0 +1,57 @@
+/*-
+ * #%L
+ * SciJava UI components for Java Swing.
+ * %%
+ * Copyright (C) 2010 - 2023 SciJava developers.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+package org.scijava.ui.swing.widget;
+
+import org.scijava.Context;
+import org.scijava.command.Command;
+import org.scijava.command.CommandService;
+import org.scijava.plugin.Parameter;
+import org.scijava.ui.UIService;
+import org.scijava.widget.FileListWidget;
+import org.scijava.widget.FileWidget;
+
+import java.net.URI;
+
+public class SwingURIWidgetDemo implements Command {
+
+
+	@Parameter(style = FileListWidget.FILES_AND_DIRECTORIES, persist = false)
+	private URI uri;
+
+	@Override
+	public void run() {
+		System.out.println(uri);
+	}
+
+	public static void main(final String... args) throws Exception {
+		Context context = new Context();
+		context.service(UIService.class).showUI();
+		context.service(CommandService.class).run( SwingURIWidgetDemo.class, true);
+	}
+}