Added copy-paste menu to text widgets.

Added base for media uploading.

ComposeWindow.java

@@ -16,6 +16,12 @@ import javax.swing.UIManager;
 import javax.swing.JToggleButton;
 import javax.swing.ButtonGroup;
 import javax.swing.border.Border;
+import javax.swing.JPopupMenu;
+import javax.swing.JMenuItem;
+import javax.swing.JFileChooser;
+import javax.swing.ImageIcon;
+import javax.swing.text.JTextComponent;
+import java.nio.file.Files;
 import java.awt.GridLayout;
 import java.awt.BorderLayout;
 import java.awt.Dimension;
@@ -23,6 +29,8 @@ import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyListener;
 import java.awt.event.KeyEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseEvent;
 import java.awt.Cursor;
 import java.awt.Color;
 import java.awt.Font;
@@ -30,6 +38,8 @@ import java.awt.Insets;
 import java.awt.FlowLayout;
 import java.awt.Component;
 import java.awt.Container;
+import java.awt.Image;
+import java.io.File;
 import javax.swing.event.CaretListener;
 import javax.swing.event.CaretEvent;
 import java.util.List;
@@ -92,6 +102,15 @@ ComposeWindow extends JFrame {
         if (composition.contentWarning != null)
             assert !composition.contentWarning.trim().isEmpty();
 
+		// Oh, this is gonna be hell.
+		/*
+		* (未) For every attachment in composition,
+		* attempt to upload it, then fill the media ID.
+		* Then change MastodonApi#submit to accept an
+		* array of media IDs. If any upload fails,
+		* show an error message then return.
+		*/
+
         contentsDisplay.setSubmitting(true);
         api.submit(
             composition.text, composition.visibility,
@@ -135,22 +154,29 @@ ComposeWindow extends JFrame {
     private synchronized void
     syncDisplayToComposition()
     {
-        ComposeComponent d = contentsDisplay;
-        d.setText(composition.text);
-        d.setReplyToPostId(composition.replyToPostId);
-        d.setVisibility(stringFor(composition.visibility));
-        d.setContentWarning(composition.contentWarning);
+        ComposeComponent d1 = contentsDisplay;
+        d1.setText(composition.text);
+        d1.setReplyToPostId(composition.replyToPostId);
+        d1.setVisibility(stringFor(composition.visibility));
+        d1.setContentWarning(composition.contentWarning);
+
+		AttachmentsComponent d2 = attachmentsDisplay;
+		d2.setAttachments(composition.attachments);
     }
 
     private synchronized void
     syncCompositionToDisplay()
     {
-        ComposeComponent d = contentsDisplay;
-        Composition c = composition;
-        c.text = d.getText();
-        c.visibility = visibilityFrom(d.getVisibility());
-        c.replyToPostId = nonEmpty(d.getReplyToPostId());
-        c.contentWarning = nonEmpty(d.getContentWarning());
+		Composition c = composition;
+
+        ComposeComponent d1 = contentsDisplay;
+        c.text = d1.getText();
+        c.visibility = visibilityFrom(d1.getVisibility());
+        c.replyToPostId = nonEmpty(d1.getReplyToPostId());
+        c.contentWarning = nonEmpty(d1.getContentWarning());
+
+		AttachmentsComponent d2 = attachmentsDisplay;
+		c.attachments = d2.getAttachments();
     }
 
 //   -  -%-  -
@@ -248,9 +274,6 @@ implements ActionListener, CaretListener, KeyListener {
     private JButton
     submit;
 
-    private JButton
-    showAttachmentsPage;
-
 //  ---%-@-%---
 
     public void
@@ -332,10 +355,6 @@ implements ActionListener, CaretListener, KeyListener {
     public void
     actionPerformed(ActionEvent eA)
     {
-        if (eA.getSource() == showAttachmentsPage)
-            //primaire.showAttachmentsPage();
-            ;
-
         if (eA.getSource() == submit)
             primaire.submit();
     }
@@ -398,13 +417,18 @@ implements ActionListener, CaretListener, KeyListener {
         Border b3 = BorderFactory.createLineBorder(Color.GRAY);
         Border bc = BorderFactory.createCompoundBorder(b3, b2);
 
+		TextActionPopupMenu textActionPopup;
+		textActionPopup = new TextActionPopupMenu();
+
         reply = new JTextField();
         JLabel replyLabel = new JLabel("In reply to: ");
         replyLabel.setLabelFor(reply);
+		reply.addMouseListener(textActionPopup);
 
         contentWarning = new JTextField();
         JLabel cwLabel = new JLabel("Content warning: ");
         cwLabel.setLabelFor(contentWarning);
+		contentWarning.addMouseListener(textActionPopup);
 
         JPanel top = new JPanel();
         top.setOpaque(false);
@@ -429,11 +453,7 @@ implements ActionListener, CaretListener, KeyListener {
         submit = new JButton("Submit");
         submit.addActionListener(this);
 
-        showAttachmentsPage = new JButton("Media");
-        showAttachmentsPage.addActionListener(this);
-
         Box bottom = Box.createHorizontalBox();
-        //bottom.add(showAttachmentsPage);
         bottom.add(Box.createGlue());
         bottom.add(textLength);
         bottom.add(Box.createHorizontalStrut(12));
@@ -448,6 +468,7 @@ implements ActionListener, CaretListener, KeyListener {
         text.setBorder(bc);
         text.addCaretListener(this);
         text.addKeyListener(this);
+		text.addMouseListener(textActionPopup);
 
         setLayout(new BorderLayout(0, 8));
         add(top, BorderLayout.NORTH);
@@ -496,8 +517,30 @@ implements ActionListener {
     private JTextArea
     description;
 
+	private JFileChooser
+	chooser;
+
 //  ---%-@-%---
 
+	public void
+	setAttachments(Attachment[] n)
+	{
+		working.clear();
+		if (n != null) for (Attachment attachment: n)
+		{
+			working.add(attachment);
+		}
+		updateButtons();
+	}
+
+	public Attachment[]
+	getAttachments()
+	{
+		return working.toArray(new Attachment[0]);
+	}
+
+//	 -	-%-	 -
+
     private void
     updateButtons()
     {
@@ -510,10 +553,30 @@ implements ActionListener {
         if (working.size() > 3) selections.add(attachment4);
         if (working.size() < 4) selections.add(add);
 
-        if (working.size() > 3) attachment4.doClick();
-        else if (working.size() > 2) attachment3.doClick();
-        else if (working.size() > 1) attachment2.doClick();
-        else if (working.size() > 0) attachment1.doClick();
+        if (working.size() > 3)
+		{
+			attachment4.doClick();
+			Image i = working.get(3).image;
+			attachment4.setIcon(new ImageIcon(i));
+		}
+        else if (working.size() > 2)
+		{
+			attachment3.doClick();
+			Image i = working.get(2).image;
+			attachment3.setIcon(new ImageIcon(i));
+		}
+        else if (working.size() > 1)
+		{
+			attachment2.doClick();
+			Image i = working.get(1).image;
+			attachment2.setIcon(new ImageIcon(i));
+		}
+        else if (working.size() > 0)
+		{
+			attachment1.doClick();
+			Image i = working.get(0).image;
+			attachment1.setIcon(new ImageIcon(i));
+		}
         else selectionsGroup.clearSelection();
 
         int bw = sz.width;
@@ -539,10 +602,30 @@ implements ActionListener {
 
         if (src == add)
         {
-            // Invoke file picker. Try to get file.
-            // Try to upload file. So on.
-            // Then add to working.
-            working.add(new Attachment());
+			int r = chooser.showOpenDialog(this);
+			if (r != JFileChooser.APPROVE_OPTION) return;
+			
+			File f = chooser.getSelectedFile();
+
+			Attachment a = new Attachment();
+			a.uploadee = f;
+
+			String mime = "", primary = "";
+			try
+			{
+				mime = Files.probeContentType(f.toPath());
+				primary = mime.split("/")[0];
+				// Too lazy to instantiate a
+				// javax.activation.MimeType.
+			}
+			catch (IOException eIo) { }
+			if (primary.equals("image"))
+			{
+				String urlr = f.toURI().toString();
+				a.image = ImageApi.remote(urlr);
+			}
+			
+            working.add(a);
             updateButtons();
         }
 
@@ -596,10 +679,15 @@ implements ActionListener {
         Border bc1 = BorderFactory.createCompoundBorder(b3, b2);
         Border bc2 = BorderFactory.createCompoundBorder(b4, b2);
 
+		TextActionPopupMenu textActionPopup;
+		textActionPopup = new TextActionPopupMenu();
+
+		chooser = new JFileChooser();
+
         add = new JButton("+");
         add.setPreferredSize(new Dimension(32, 32));
         add.setMargin(new Insets(0, 0, 0, 0));
-        add.addActionListener(this);
+		add.addActionListener(this);
         attachment1 = new JToggleButton("1");
         attachment2 = new JToggleButton("2");
         attachment3 = new JToggleButton("3");
@@ -663,6 +751,7 @@ implements ActionListener {
         java.awt.Font f = description.getFont();
         description.setFont(f.deriveFont(16f));
         description.setBorder(bc1);
+		description.addMouseListener(textActionPopup);
         descriptionLabel = new JLabel("Description");
         descriptionLabel.setLabelFor(description);
 
@@ -693,3 +782,71 @@ implements ActionListener {
     }
 
 }
+
+class
+TextActionPopupMenu extends JPopupMenu
+implements MouseListener, ActionListener {
+
+	private JMenuItem
+	copy,
+	cut,
+	paste;
+
+	private long
+	pressed;
+
+//	---%-@-%---
+
+	public void
+	mousePressed(MouseEvent eM)
+	{
+		assert eM.getSource() instanceof JTextComponent;
+		if (!eM.isPopupTrigger()) return;
+		show((Component)eM.getSource(), eM.getX(), eM.getY());
+	}
+
+	public void
+	mouseReleased(MouseEvent eM)
+	{
+		if (eM.getClickCount() == 0) setVisible(false);
+	}
+
+	public void
+	mouseClicked(MouseEvent eM) { }
+
+	public void
+	mouseEntered(MouseEvent eM) { }
+
+	public void
+	mouseExited(MouseEvent eM) { }
+
+	public void
+	actionPerformed(ActionEvent eA)
+	{
+		assert getInvoker() instanceof JTextComponent;
+		JTextComponent inv = (JTextComponent)getInvoker();
+
+		if (eA.getSource() == copy) inv.copy();
+		if (eA.getSource() == cut) inv.cut();
+		if (eA.getSource() == paste) inv.paste();
+	}
+
+//	---%-@-%---
+
+	public
+	TextActionPopupMenu()
+	{
+		copy = new JMenuItem("Copy");
+		cut = new JMenuItem("Cut");
+		paste = new JMenuItem("Paste");
+		copy.addActionListener(this);
+		cut.addActionListener(this);
+		paste.addActionListener(this);
+
+		add(cut);
+		add(copy);
+		add(paste);
+	}
+
+}
+

JKomasto.java

@@ -22,6 +22,7 @@ import javax.swing.plaf.metal.DefaultMetalTheme;
 import javax.swing.plaf.metal.OceanTheme;
 import javax.swing.plaf.ColorUIResource;
 import javax.swing.UIDefaults;
+import java.io.File;
 import cafe.biskuteri.hinoki.Tree;
 
 
@@ -569,6 +570,9 @@ Attachment {
 	public Image
 	image;
 
+	public File
+	uploadee;
+
 //  ---%-@-%---
 
     public void
@@ -616,6 +620,9 @@ Composition {
     public Attachment[]
     attachments;
 
+	private File
+	uploadee;
+
 //  ---%-@-%---
 
     public

RichTextPane3.java

@@ -366,6 +366,7 @@ implements
     public void
     mousePressed(MouseEvent eM)
     {
+		if (eM.getButton() != MouseEvent.BUTTON1) return;
         selStart = identifyNodeAt(eM.getX(), eM.getY());
         selEnd = null;
         repaint();