biskuteri-cafe-JKomasto2/PostWindow.java

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;
import java.awt.Graphics;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Shape;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Cursor;
import java.awt.Image;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.List;
import java.util.ArrayList;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.io.IOException;
import cafe.biskuteri.hinoki.Tree;


class
PostWindow extends JFrame
implements ActionListener {

    private JKomasto
    primaire;

    private MastodonApi
    api;

    private Post
    post;

//   -  -%-  -

    private PostComponent
    postDisplay;

    private RepliesComponent
    repliesDisplay;

//     -    -%-     -

    private static final DateTimeFormatter
    DATE_FORMAT = DateTimeFormatter.ofPattern("d LLLL ''uu"),
    TIME_FORMAT = DateTimeFormatter.ofPattern("HH:mm");

//  ---%-@-%---

    public void
    showPost(Post post)
    {
        assert post != null;
        this.post = post;

        List<RepliesComponent.Reply> replies = null;
        {
            List<Post> posts = null;
            // We should make a request to JKomasto here.
        }
        if (replies == null)
        {
            RepliesComponent.Reply reply1, reply2, reply3;
            reply1 = new RepliesComponent.Reply();
            reply1.author = "Black tea";
            reply1.text = "Rich..";
            reply2 = new RepliesComponent.Reply();
            reply2.author = "Green tea";
            reply2.text = "Clean!";
            reply3 = new RepliesComponent.Reply();
            reply3.author = "Coffee";
            reply3.text = "sleepy..";

            replies = new ArrayList<>();
            replies.add(reply1);
            replies.add(reply2);
            replies.add(reply3);
        }

        postDisplay.setAuthorName(post.authorName);
        postDisplay.setAuthorId(post.authorId);
		postDisplay.setAuthorAvatar(post.authorAvatar);
        postDisplay.setDate(DATE_FORMAT.format(post.date));
        postDisplay.setTime(TIME_FORMAT.format(post.date));
        postDisplay.setText(post.text);
        postDisplay.setFavourited(post.favourited);
        postDisplay.setBoosted(post.boosted);
		postDisplay.setMediaPreview(
			post.attachments.length == 0
				? null
				: post.attachments[0].image
		);
        repliesDisplay.setReplies(replies);
		postDisplay.resetFocus();
        repaint();
    }

    public void
    openAuthorProfile()
    {

    }

    public void
    favourite(boolean favourited)
    {
        postDisplay.setCursor(new Cursor(Cursor.WAIT_CURSOR));
        postDisplay.setFavouriteBoostEnabled(false);
        postDisplay.paintImmediately(postDisplay.getBounds());
        RequestListener handler = new RequestListener() {

            public void
            connectionFailed(IOException eIo)
            {
                JOptionPane.showMessageDialog(
                    PostWindow.this,
                    "Tried to favourite post, failed.."
                    + "\n" + eIo.getClass() + ": " + eIo.getMessage()
                );
            }

            public void
            requestFailed(int httpCode, Tree<String> json)
            {
                JOptionPane.showMessageDialog(
                    PostWindow.this,
                    "Tried to favourite post, failed.."
                    + "\n" + json.get("error").value
                    + "\n(HTTP error code: " + httpCode + ")"
                );
            }

            public void
            requestSucceeded(Tree<String> json)
            {
                post.favourited = favourited;
            }

        };
        api.setPostFavourited(post.postId, favourited, handler);
        postDisplay.setFavouriteBoostEnabled(true);
        postDisplay.setCursor(null);
    }

    public void
    boost(boolean boosted)
    {
        postDisplay.setCursor(new Cursor(Cursor.WAIT_CURSOR));
        postDisplay.setFavouriteBoostEnabled(false);
        postDisplay.paintImmediately(postDisplay.getBounds());
        RequestListener handler = new RequestListener() {

            public void
            connectionFailed(IOException eIo)
            {
                JOptionPane.showMessageDialog(
                    PostWindow.this,
                    "Tried to boost post, failed.."
                    + "\n" + eIo.getClass() + ": " + eIo.getMessage()
                );
            }

            public void
            requestFailed(int httpCode, Tree<String> json)
            {
                JOptionPane.showMessageDialog(
                    PostWindow.this,
                    "Tried to boost post, failed.."
                    + "\n" + json.get("error").value
                    + "\n(HTTP error code: " + httpCode + ")"
                );
            }

            public void
            requestSucceeded(Tree<String> json)
            {
                post.boosted = boosted;
            }

        };
        api.setPostBoosted(post.postId, boosted, handler);
        postDisplay.setFavouriteBoostEnabled(true);
        postDisplay.setCursor(null);
    }

    public void
    reply()
    {
        ComposeWindow w = primaire.getComposeWindow();
        w.setLocation(getX(), getY() + 100);
        w.setVisible(true);
        Composition c = new Composition();
        c.text = "@" + post.authorId + " ";
        c.visibility = PostVisibility.PUBLIC;
        c.replyToPostId = post.postId;
        w.setComposition(c);
    }

    public void
    openMedia()
    {
		ImageWindow w = primaire.getMediaWindow();
		w.showAttachments(post.attachments);
		int l = Math.min(40, post.text.length());
		w.setTitle(post.text.substring(0, l));
		if (!w.isVisible()) {
			w.setLocation(getX(), getY() + 100);
			w.setVisible(true);
		}
    }

//   -  -%-  -

    public void
    actionPerformed(ActionEvent eA)
    {
        Object src = eA.getSource();
        if (!(src instanceof JMenuItem)) return;
        String text = ((JMenuItem)src).getText();

        if (text.equals("Post"))
        {
            setContentPane(postDisplay);
            revalidate();
            /*
            * (知) Setting a content pane in itself doesn't
            * do anything to the content pane. Validation
            * of the validate root does. Which happens on
            * window realisation, or by manual call.
            */
        }
        else if (text.equals("Replies"))
        {
            setContentPane(repliesDisplay);
            revalidate();
        }
    }

//  ---%-@-%---

    PostWindow(JKomasto primaire)
    {
        this.primaire = primaire;
        this.api = primaire.getMastodonApi();

        getContentPane().setPreferredSize(new Dimension(360, 270));
        pack();
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        setLocationByPlatform(true);

        postDisplay = new PostComponent(this);

        repliesDisplay = new RepliesComponent();

        Post samplePost = new Post();
        samplePost.text = "This is a sample post.";
        samplePost.authorId = "snowyfox@biskuteri.cafe";
        samplePost.authorName = "snowyfox";
        samplePost.date = ZonedDateTime.now();
        samplePost.visibility = PostVisibility.MENTIONED;
        samplePost.postId = "000000000";
        samplePost.boosted = false;
        samplePost.favourited = true;
		samplePost.attachments = new Attachment[0];
        showPost(samplePost);

        setContentPane(postDisplay);
    }

}



class
PostComponent extends JPanel
implements ActionListener {

    private PostWindow
    primaire;

    private String
    authorName, authorId, date, time, text;

//   -  -%-  -

    private TwoToggleButton
    favouriteBoost,
    replyMisc,
    nextPrev;

    private RoundButton
    profile,
    media;

//  ---%-@-%---

    public void
    setAuthorName(String n) { authorName = n; }

    public void
    setAuthorId(String n) { authorId = n; }

	public void
	setAuthorAvatar(Image n) { profile.setImage(n); }

    public void
    setDate(String n) { date = n; }

    public void
    setTime(String n) { time = n; }

    public void
    setText(String n) { text = n; }

    public void
    setFavourited(boolean a)
    {
        favouriteBoost.removeActionListener(this);
        favouriteBoost.setPrimaryToggled(a);
        favouriteBoost.addActionListener(this);
    }

    public void
    setBoosted(boolean a)
    {
        favouriteBoost.removeActionListener(this);
        favouriteBoost.setSecondaryToggled(a);
        favouriteBoost.addActionListener(this);
    }

    public void
    setFavouriteBoostEnabled(boolean a)
    {
        favouriteBoost.setEnabled(a);
    }

	public void
	setMediaPreview(Image n) { media.setImage(n); }

	public void
	resetFocus() { media.requestFocusInWindow(); }

//   -  -%-  -

    public void
    actionPerformed(ActionEvent eA)
    {
        Object src = eA.getSource();
        String command = eA.getActionCommand();

        if (src == profile)
        {
            primaire.openAuthorProfile();
            return;
        }

        if (src == favouriteBoost)
        {
            if (command.equals("favouriteOn"))
                primaire.favourite(true);
            if (command.equals("favouriteOff"))
                primaire.favourite(false);
            if (command.equals("boostOn"))
                primaire.boost(true);
            if (command.equals("boostOff"))
                primaire.boost(false);
            return;
        }

        if (src == replyMisc)
        {
            if (command.startsWith("reply")) primaire.reply();
            return;
        }

        if (src == nextPrev)
        {
            if (command.equals("next"))
            {

            }
            else
            {

            }
            return;
        }

        if (src == media)
        {
            primaire.openMedia();
            return;
        }
    }

    protected void
    paintComponent(Graphics g)
    {
        g.clearRect(0, 0, getWidth(), getHeight());

		((java.awt.Graphics2D)g).setRenderingHint(
        	java.awt.RenderingHints.KEY_TEXT_ANTIALIASING,
        	java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_ON
		);

        Font f1 = new Font("IPAGothic", Font.PLAIN, 16);
        Font f2 = new Font("IPAGothic", Font.PLAIN, 14);
        FontMetrics fm1 = g.getFontMetrics(f1);
        FontMetrics fm2 = g.getFontMetrics(f2);

        int x1 = 60;
        int x4 = getWidth() - 10;
        int x2 = x4 - fm2.stringWidth(date);
        int x3 = x4 - fm1.stringWidth(time);
        int y1 = 10;
        int y2 = y1 + fm2.getHeight();
        int y3 = y2 + fm1.getHeight();
        int y4 = y3 + 8;

        Shape defaultClip = g.getClip();
        g.setClip(x1, y1, Math.min(x2, x3) - 8 - x1, y4 - y1);
        // First time I've used this method..
        // Cause, clearRect is not working.
        g.setFont(f2);
        g.drawString(authorId, x1, y2);
        g.setFont(f1);
        g.drawString(authorName, x1, y3);
        g.setClip(defaultClip);

        g.setFont(f2);
        g.drawString(date, x2, y2);
        g.setFont(f1);
        g.drawString(time, x3, y3);

        int y = y4;
        for (String line: split(text, 40)) {
            y += fm1.getHeight();
            g.drawString(line, x1, y);
        }
    }

//   -  -%-  -

	private static ImageIcon
	toIcon(Image image)
	{
		if (image == null) return null;
		return new ImageIcon(image);
	}

    private static List<String>
    split(String string, int lineLength)
    {
        List<String> returnee = new ArrayList<>();

        StringBuilder line = new StringBuilder();
        for (String word: string.split(" "))
        {
            if (word.length() >= lineLength) {
                word = word.substring(0, lineLength - 4) + "...";
            }
            if (word.equals("\n")) {
                returnee.add(empty(line));
                continue;
            }
            if (line.length() + word.length() > lineLength) {
                returnee.add(empty(line));
            }
            line.append(word);
            line.append(" ");
        }
        returnee.add(empty(line));

        return returnee;
    }

    private static String
    empty(StringBuilder b)
    {
        String s = b.toString();
        b.delete(0, b.length());
        return s;
    }

//  ---%-@-%---

    PostComponent(PostWindow primaire)
    {
        this.primaire = primaire;

        authorName = authorId = time = text = "";

        Dimension buttonSize = new Dimension(20, 40);

        profile = new RoundButton();
        //profile.setPreferredSize(buttonSize);
        profile.addActionListener(this);

        favouriteBoost = new TwoToggleButton("favourite", "boost");
        favouriteBoost.addActionListener(this);

        replyMisc = new TwoToggleButton("reply", "misc");
        replyMisc.addActionListener(this);

        nextPrev = new TwoToggleButton("next", "prev");
        nextPrev.addActionListener(this);

        media = new RoundButton();
        //media.setPreferredSize(buttonSize);
        media.addActionListener(this);

        Box ibuttons = Box.createVerticalBox();
        ibuttons.setOpaque(false);
        ibuttons.add(profile);
        ibuttons.add(Box.createVerticalStrut(8));
        ibuttons.add(favouriteBoost);
        ibuttons.add(Box.createVerticalStrut(8));
        ibuttons.add(replyMisc);
        ibuttons.add(Box.createVerticalStrut(8));
        ibuttons.add(nextPrev);
        ibuttons.add(Box.createVerticalStrut(8));
        ibuttons.add(media);
        ibuttons.setMaximumSize(ibuttons.getPreferredSize());
        Box buttons = Box.createVerticalBox();
        buttons.setOpaque(false);
        buttons.add(ibuttons);
        buttons.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

        setLayout(new BorderLayout());
        add(buttons, BorderLayout.WEST);

        setFont(getFont().deriveFont(14f));
    }

}



class
RepliesComponent extends JPanel {

    private List<RepliesComponent.Reply>
    replies;

//   -  -%-  -

    private JButton
    prevPage, nextPage;

    private JLabel
    pageLabel;

    private ReplyPreviewComponent[]
    previews;

//  ---%-@-%---

    public void
    setReplies(List<RepliesComponent.Reply> replies)
    {
        assert replies != null;
        this.replies = replies;
        displayPage(1);
    }

//   -  -%-  -

    private void
    displayPage(int pageNumber)
    {
        assert pageNumber > 0;
        assert this.replies != null;

        List<RepliesComponent.Reply> page;
        {
            int oS = (pageNumber - 1) * 8;
            int oE = Math.min(oS + 8, replies.size());
            if (oS > oE) page = new ArrayList<>();
            else page = this.replies.subList(oS, oE);
        }

        for (int o = 0; o < page.size(); ++o)
        {
            assert o < previews.length;

            ReplyPreviewComponent preview = previews[o];
            Reply reply = replies.get(o);
            preview.setAuthorName(reply.author);
            preview.setText(reply.text);
            preview.setVisible(true);
        }

        for (int o = page.size(); o < previews.length; ++o)
        {
            ReplyPreviewComponent preview = previews[o];
            preview.setVisible(false);
        }

        int pages = 1 + ((replies.size() - 1) / 8);
        pageLabel.setText(pageNumber + "/" + pages);
        prevPage.setEnabled(pageNumber > 1);
        nextPage.setEnabled(pageNumber < pages);
    }

//  ---%-@-%---

    public static class
    Reply {

        public String
        author;

        public String
        text;

    }

//  ---%-@-%---

    RepliesComponent()
    {
        prevPage = new JButton("<");
        nextPage = new JButton(">");
        prevPage.setEnabled(false);
        nextPage.setEnabled(false);

        pageLabel = new JLabel();

        Box bottom = Box.createHorizontalBox();
        bottom.add(Box.createGlue());
        bottom.add(prevPage);
        bottom.add(Box.createHorizontalStrut(8));
        bottom.add(pageLabel);
        bottom.add(Box.createHorizontalStrut(8));
        bottom.add(nextPage);

        JPanel centre = new JPanel();
        centre.setOpaque(false);
        centre.setLayout(new GridLayout(0, 1, 0, 2));

        previews = new ReplyPreviewComponent[8];
        for (int o = 0; o < previews.length; ++o)
        {
            previews[o] = new ReplyPreviewComponent();
            previews[o].setVisible(false);
            centre.add(previews[o]);
        }

        setLayout(new BorderLayout(0, 8));
        add(centre, BorderLayout.CENTER);
        add(bottom, BorderLayout.SOUTH);

        setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));

        setReplies(new ArrayList<>());
    }

}


class
ReplyPreviewComponent extends JButton {

    private String
    author;

    private String
    text;

//  ---%-@-%---

    @Override
    public void
    setText(String text)
    {
        assert text != null;
        this.text = text;
        setText();
    }

    public void
    setAuthorName(String author)
    {
        assert author != null;
        this.author = author;
        setText();
    }

//   -  -%-  -

    private void
    setText()
    {
        StringBuilder text = new StringBuilder();
        text.append(this.author);
        text.append(" @ ");
        text.append(this.text);
        super.setText(text.toString());
    }

    protected void
    paintComponent(Graphics g)
    {
        g.drawString(getText(), 8, 2 * getHeight() / 3);
    }

}