378 lines
12 KiB
Java
378 lines
12 KiB
Java
package envoy.client.ui;
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import java.awt.*;
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import java.awt.event.KeyAdapter;
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import java.awt.event.KeyEvent;
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import java.io.IOException;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.swing.*;
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import javax.swing.border.EmptyBorder;
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import envoy.client.Settings;
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import envoy.client.data.Chat;
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import envoy.client.data.LocalDb;
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import envoy.client.event.MessageCreationEvent;
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import envoy.client.event.ThemeChangeEvent;
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import envoy.client.net.Client;
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import envoy.client.net.WriteProxy;
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import envoy.client.ui.list.ComponentList;
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import envoy.client.ui.settings.SettingsScreen;
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import envoy.client.util.EnvoyLog;
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import envoy.data.Message;
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import envoy.data.Message.MessageStatus;
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import envoy.data.MessageBuilder;
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import envoy.data.User;
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import envoy.event.EventBus;
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import envoy.event.MessageStatusChangeEvent;
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/**
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* Project: <strong>envoy-client</strong><br>
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* File: <strong>ChatWindow.java</strong><br>
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* Created: <strong>28 Sep 2019</strong><br>
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*
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* @author Kai S. K. Engelbart
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* @author Maximilian Käfer
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* @author Leon Hofmeister
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* @since Envoy v0.1-alpha
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*/
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public class ChatWindow extends JFrame {
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// User specific objects
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private Client client;
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private WriteProxy writeProxy;
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private LocalDb localDb;
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// GUI components
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private JPanel contentPane = new JPanel();
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private PrimaryTextArea messageEnterTextArea = new PrimaryTextArea(space);
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private JList<User> userList = new JList<>();
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private Chat currentChat;
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private ComponentList<Message> messageList = new ComponentList<>(new MessageListRenderer());
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private PrimaryScrollPane scrollPane = new PrimaryScrollPane();
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private JTextPane textPane = new JTextPane();
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private PrimaryButton postButton = new PrimaryButton("Post");
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private PrimaryButton settingsButton = new PrimaryButton("Settings");
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private static final Logger logger = EnvoyLog.getLogger(ChatWindow.class.getSimpleName());
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// GUI component spacing
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private final static int space = 4;
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private static final Insets insets = new Insets(space, space, space, space);
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private static final long serialVersionUID = 6865098428255463649L;
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/**
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* Initializes a {@link JFrame} with UI elements used to send and read messages
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* to different users.
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*
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* @since Envoy v0.1-alpha
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*/
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public ChatWindow() {
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setBounds(100, 100, 600, 800);
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setTitle("Envoy");
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setLocationRelativeTo(null);
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setIconImage(Toolkit.getDefaultToolkit().createImage(getClass().getClassLoader().getResource("envoy_logo.png")));
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contentPane.setBorder(new EmptyBorder(space, space, space, space));
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setContentPane(contentPane);
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GridBagLayout gbl_contentPane = new GridBagLayout();
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gbl_contentPane.columnWidths = new int[] { 1, 1, 1 };
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gbl_contentPane.rowHeights = new int[] { 1, 1, 1 };
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gbl_contentPane.columnWeights = new double[] { 0.3, 1.0, 0.1 };
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gbl_contentPane.rowWeights = new double[] { 0.05, 1.0, 0.07 };
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contentPane.setLayout(gbl_contentPane);
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// TODO: messageList.setFocusTraversalKeysEnabled(false);
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// messageList.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
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// messageList.setFont(new Font("Arial", Font.PLAIN, 17));
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// messageList.setFixedCellHeight(60);
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messageList.setBorder(new EmptyBorder(space, space, space, space));
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scrollPane.setViewportView(messageList);
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GridBagConstraints gbc_scrollPane = new GridBagConstraints();
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gbc_scrollPane.fill = GridBagConstraints.BOTH;
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gbc_scrollPane.gridwidth = 2;
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gbc_scrollPane.gridx = 1;
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gbc_scrollPane.gridy = 1;
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gbc_scrollPane.insets = insets;
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contentPane.add(scrollPane, gbc_scrollPane);
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// Message enter field
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messageEnterTextArea.addKeyListener(new KeyAdapter() {
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@Override
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public void keyReleased(KeyEvent e) {
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if (e.getKeyCode() == KeyEvent.VK_ENTER
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&& (Settings.getInstance().isEnterToSend() && e.getModifiersEx() == 0 || e.getModifiersEx() == KeyEvent.CTRL_DOWN_MASK))
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postMessage();
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}
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});
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GridBagConstraints gbc_messageEnterTextfield = new GridBagConstraints();
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gbc_messageEnterTextfield.fill = GridBagConstraints.BOTH;
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gbc_messageEnterTextfield.gridx = 1;
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gbc_messageEnterTextfield.gridy = 2;
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gbc_messageEnterTextfield.insets = insets;
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contentPane.add(messageEnterTextArea, gbc_messageEnterTextfield);
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// Post Button
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GridBagConstraints gbc_moveSelectionPostButton = new GridBagConstraints();
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gbc_moveSelectionPostButton.fill = GridBagConstraints.BOTH;
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gbc_moveSelectionPostButton.gridx = 2;
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gbc_moveSelectionPostButton.gridy = 2;
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gbc_moveSelectionPostButton.insets = insets;
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postButton.addActionListener((evt) -> { postMessage(); });
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contentPane.add(postButton, gbc_moveSelectionPostButton);
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// Settings Button
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GridBagConstraints gbc_moveSelectionSettingsButton = new GridBagConstraints();
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gbc_moveSelectionSettingsButton.fill = GridBagConstraints.BOTH;
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gbc_moveSelectionSettingsButton.gridx = 2;
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gbc_moveSelectionSettingsButton.gridy = 0;
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gbc_moveSelectionSettingsButton.insets = insets;
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settingsButton.addActionListener((evt) -> {
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try {
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new SettingsScreen().setVisible(true);
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} catch (Exception e) {
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logger.log(Level.WARNING, "An error occured while opening the settings screen", e);
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e.printStackTrace();
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}
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});
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contentPane.add(settingsButton, gbc_moveSelectionSettingsButton);
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// Partner name display
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textPane.setFont(new Font("Arial", Font.PLAIN, 20));
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textPane.setEditable(false);
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GridBagConstraints gbc_partnerName = new GridBagConstraints();
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gbc_partnerName.fill = GridBagConstraints.HORIZONTAL;
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gbc_partnerName.gridx = 1;
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gbc_partnerName.gridy = 0;
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gbc_partnerName.insets = insets;
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contentPane.add(textPane, gbc_partnerName);
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userList.setCellRenderer(new UserListRenderer());
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userList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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userList.addListSelectionListener((listSelectionEvent) -> {
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if (client != null && localDb != null && !listSelectionEvent.getValueIsAdjusting()) {
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@SuppressWarnings("unchecked")
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final JList<User> selectedUserList = (JList<User>) listSelectionEvent.getSource();
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final User user = selectedUserList.getSelectedValue();
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// Select current chat
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currentChat = localDb.getChats().stream().filter(chat -> chat.getRecipient().getId() == user.getId()).findFirst().get();
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// Read current chat
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readCurrentChat();
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// Set chat title
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textPane.setText(currentChat.getRecipient().getName());
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// Update model and scroll down
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messageList.setModel(currentChat.getModel());
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scrollPane.setChatOpened(true);
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messageList.synchronizeModel();
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revalidate();
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repaint();
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}
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});
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userList.setFont(new Font("Arial", Font.PLAIN, 17));
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userList.setBorder(new EmptyBorder(space, space, space, space));
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GridBagConstraints gbc_userList = new GridBagConstraints();
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gbc_userList.fill = GridBagConstraints.VERTICAL;
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gbc_userList.gridx = 0;
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gbc_userList.gridy = 1;
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gbc_userList.anchor = GridBagConstraints.PAGE_START;
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gbc_userList.insets = insets;
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applyTheme(Settings.getInstance().getThemes().get(Settings.getInstance().getCurrentTheme()));
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contentPane.add(userList, gbc_userList);
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contentPane.revalidate();
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// Listen to theme changes
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EventBus.getInstance().register(ThemeChangeEvent.class, (evt) -> applyTheme((Theme) evt.get()));
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// Listen to received messages
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EventBus.getInstance().register(MessageCreationEvent.class, (evt) -> {
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Message message = ((MessageCreationEvent) evt).get();
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Chat chat = localDb.getChats().stream().filter(c -> c.getRecipient().getId() == message.getSenderId()).findFirst().get();
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chat.appendMessage(message);
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// Read message and update UI if in current chat
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if (chat == currentChat) readCurrentChat();
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revalidate();
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repaint();
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});
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// Listen to message status changes
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EventBus.getInstance().register(MessageStatusChangeEvent.class, (evt) -> {
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final long id = ((MessageStatusChangeEvent) evt).getId();
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final MessageStatus status = (MessageStatus) evt.get();
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for (Chat c : localDb.getChats())
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for (Message m : c.getModel())
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if (m.getId() == id) {
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// Update message status
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m.setStatus(status);
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// Update model and scroll down if current chat
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if (c == currentChat) {
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messageList.setModel(currentChat.getModel());
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scrollPane.setChatOpened(true);
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} else messageList.synchronizeModel();
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}
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revalidate();
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repaint();
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});
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revalidate();
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}
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/**
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* Used to immediately reload the {@link ChatWindow} when settings were changed.
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*
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* @param theme the theme to change colors into
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* @since Envoy v0.2-alpha
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*/
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private void applyTheme(Theme theme) {
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// contentPane
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contentPane.setBackground(theme.getBackgroundColor());
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contentPane.setForeground(theme.getUserNameColor());
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// messageList
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// messageList.setSelectionForeground(theme.getUserNameColor());
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// messageList.setSelectionBackground(theme.getSelectionColor());
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messageList.setForeground(theme.getMessageColorChat());
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messageList.setBackground(theme.getCellColor());
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// scrollPane
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scrollPane.applyTheme(theme);
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scrollPane.autoscroll();
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// messageEnterTextArea
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messageEnterTextArea.setCaretColor(theme.getTypingMessageColor());
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messageEnterTextArea.setForeground(theme.getTypingMessageColor());
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messageEnterTextArea.setBackground(theme.getCellColor());
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// postButton
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postButton.setForeground(theme.getInteractableForegroundColor());
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postButton.setBackground(theme.getInteractableBackgroundColor());
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// settingsButton
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settingsButton.setForeground(theme.getInteractableForegroundColor());
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settingsButton.setBackground(theme.getInteractableBackgroundColor());
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// textPane
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textPane.setBackground(theme.getBackgroundColor());
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textPane.setForeground(theme.getUserNameColor());
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// userList
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userList.setSelectionForeground(theme.getUserNameColor());
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userList.setSelectionBackground(theme.getSelectionColor());
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userList.setForeground(theme.getUserNameColor());
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userList.setBackground(theme.getCellColor());
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}
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private void postMessage() {
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if (userList.isSelectionEmpty()) {
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JOptionPane.showMessageDialog(this, "Please select a recipient!", "Cannot send message", JOptionPane.INFORMATION_MESSAGE);
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return;
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}
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if (!messageEnterTextArea.getText().isEmpty()) try {
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// Create message
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final Message message = new MessageBuilder(localDb.getUser().getId(), currentChat.getRecipient().getId(), localDb.getIdGenerator())
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.setText(messageEnterTextArea.getText())
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.build();
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// Send message
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writeProxy.writeMessage(message);
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// Add message to PersistentLocalDb and update UI
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currentChat.appendMessage(message);
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// Clear text field
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messageEnterTextArea.setText("");
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// Update UI
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revalidate();
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repaint();
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// Request a new id generator if all IDs were used
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if (!localDb.getIdGenerator().hasNext()) client.requestIdGenerator();
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} catch (Exception e) {
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JOptionPane.showMessageDialog(this, "Error sending message:\n" + e.toString(), "Message sending error", JOptionPane.ERROR_MESSAGE);
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e.printStackTrace();
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}
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}
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/**
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* Initializes the elements of the user list by downloading them from the
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* server.
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*
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* @since Envoy v0.1-alpha
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*/
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private void loadUsersAndChats() {
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new Thread(() -> {
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DefaultListModel<User> userListModel = new DefaultListModel<>();
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localDb.getUsers().values().forEach(user -> {
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userListModel.addElement(user);
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// Check if user exists in local DB
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if (localDb.getChats().stream().filter(c -> c.getRecipient().getId() == user.getId()).count() == 0)
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localDb.getChats().add(new Chat(user));
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});
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SwingUtilities.invokeLater(() -> userList.setModel(userListModel));
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}).start();
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}
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private void readCurrentChat() {
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try {
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currentChat.read(writeProxy);
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messageList.synchronizeModel();
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} catch (IOException e) {
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e.printStackTrace();
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logger.log(Level.WARNING, "Couldn't notify server about message status change", e);
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}
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}
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/**
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* Initializes the components responsible server communication and
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* persistence.<br>
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* <br>
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* This will trigger the display of the contact list.
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*
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* @param client the client used to send and receive messages
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* @param localDb the local database used to manage stored messages
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* and users
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* @param writeProxy the write proxy used to send messages and status change
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* events to the server or cache them inside the local
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* database
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* @since Envoy v0.3-alpha
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*/
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public void initContent(Client client, LocalDb localDb, WriteProxy writeProxy) {
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this.client = client;
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this.localDb = localDb;
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this.writeProxy = writeProxy;
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loadUsersAndChats();
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}
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}
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