Windows UI .exe
This commit is contained in:
Anthony Stirling
358
src/main/java/stirling/software/SPDF/UI/impl/DesktopBrowser.java
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358
src/main/java/stirling/software/SPDF/UI/impl/DesktopBrowser.java
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package stirling.software.SPDF.UI.impl;
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import java.awt.AWTException;
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import java.awt.BorderLayout;
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import java.awt.Frame;
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import java.awt.Image;
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import java.awt.MenuItem;
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import java.awt.PopupMenu;
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import java.awt.SystemTray;
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import java.awt.TrayIcon;
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import java.awt.event.WindowEvent;
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import java.awt.event.WindowStateListener;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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import java.util.concurrent.CompletableFuture;
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import javax.imageio.ImageIO;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.SwingUtilities;
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import javax.swing.Timer;
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import org.cef.CefApp;
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import org.cef.CefClient;
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import org.cef.CefSettings;
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import org.cef.browser.CefBrowser;
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import org.cef.callback.CefBeforeDownloadCallback;
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import org.cef.callback.CefDownloadItem;
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import org.cef.callback.CefDownloadItemCallback;
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import org.cef.handler.CefDownloadHandlerAdapter;
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import org.cef.handler.CefLoadHandlerAdapter;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
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import org.springframework.stereotype.Component;
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import jakarta.annotation.PreDestroy;
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import lombok.extern.slf4j.Slf4j;
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import me.friwi.jcefmaven.CefAppBuilder;
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import me.friwi.jcefmaven.EnumProgress;
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import me.friwi.jcefmaven.MavenCefAppHandlerAdapter;
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import me.friwi.jcefmaven.impl.progress.ConsoleProgressHandler;
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import stirling.software.SPDF.UI.WebBrowser;
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@Component
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@Slf4j
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@ConditionalOnProperty(
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name = "STIRLING_PDF_DESKTOP_UI",
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havingValue = "true",
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matchIfMissing = false)
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public class DesktopBrowser implements WebBrowser {
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private static CefApp cefApp;
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private static CefClient client;
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private static CefBrowser browser;
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private static JFrame frame;
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private static LoadingWindow loadingWindow;
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private static volatile boolean browserInitialized = false;
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private static TrayIcon trayIcon;
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private static SystemTray systemTray;
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public DesktopBrowser() {
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SwingUtilities.invokeLater(
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() -> {
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loadingWindow = new LoadingWindow(null, "Initializing...");
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loadingWindow.setVisible(true);
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});
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}
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public void initWebUI(String url) {
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CompletableFuture.runAsync(
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() -> {
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try {
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CefAppBuilder builder = new CefAppBuilder();
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configureCefSettings(builder);
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builder.setProgressHandler(createProgressHandler());
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// Build and initialize CEF
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cefApp = builder.build();
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client = cefApp.createClient();
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// Set up download handler
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setupDownloadHandler();
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// Create browser and frame on EDT
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SwingUtilities.invokeAndWait(
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() -> {
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browser = client.createBrowser(url, false, false);
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setupMainFrame();
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setupLoadHandler();
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// Show the frame immediately but transparent
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frame.setVisible(true);
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});
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} catch (Exception e) {
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log.error("Error initializing JCEF browser: ", e);
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cleanup();
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}
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});
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}
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private void configureCefSettings(CefAppBuilder builder) {
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CefSettings settings = builder.getCefSettings();
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settings.cache_path = new File("jcef-bundle").getAbsolutePath();
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settings.root_cache_path = new File("jcef-bundle").getAbsolutePath();
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settings.persist_session_cookies = true;
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settings.windowless_rendering_enabled = false;
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settings.log_severity = CefSettings.LogSeverity.LOGSEVERITY_INFO;
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builder.setAppHandler(
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new MavenCefAppHandlerAdapter() {
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@Override
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public void stateHasChanged(org.cef.CefApp.CefAppState state) {
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log.info("CEF state changed: " + state);
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if (state == CefApp.CefAppState.TERMINATED) {
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System.exit(0);
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}
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}
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});
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}
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private void setupDownloadHandler() {
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client.addDownloadHandler(
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new CefDownloadHandlerAdapter() {
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@Override
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public boolean onBeforeDownload(
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CefBrowser browser,
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CefDownloadItem downloadItem,
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String suggestedName,
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CefBeforeDownloadCallback callback) {
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callback.Continue("", true);
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return true;
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}
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@Override
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public void onDownloadUpdated(
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CefBrowser browser,
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CefDownloadItem downloadItem,
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CefDownloadItemCallback callback) {
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if (downloadItem.isComplete()) {
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log.info("Download completed: " + downloadItem.getFullPath());
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} else if (downloadItem.isCanceled()) {
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log.info("Download canceled: " + downloadItem.getFullPath());
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}
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}
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});
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}
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private ConsoleProgressHandler createProgressHandler() {
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return new ConsoleProgressHandler() {
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@Override
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public void handleProgress(EnumProgress state, float percent) {
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Objects.requireNonNull(state, "state cannot be null");
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SwingUtilities.invokeLater(
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() -> {
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if (loadingWindow != null) {
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switch (state) {
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case LOCATING:
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loadingWindow.setStatus("Locating Chromium...");
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loadingWindow.setProgress(0);
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break;
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case DOWNLOADING:
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if (percent >= 0) {
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loadingWindow.setStatus(
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String.format(
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"Downloading Chromium: %.0f%%",
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percent));
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loadingWindow.setProgress((int) percent);
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}
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break;
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case EXTRACTING:
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loadingWindow.setStatus("Extracting Chromium...");
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loadingWindow.setProgress(60);
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break;
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case INITIALIZING:
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loadingWindow.setStatus("Initializing browser...");
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loadingWindow.setProgress(80);
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break;
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case INITIALIZED:
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loadingWindow.setStatus("Finalising startup...");
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loadingWindow.setProgress(90);
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break;
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}
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}
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});
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}
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};
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}
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private void setupMainFrame() {
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frame = new JFrame("Stirling-PDF");
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frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
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frame.setUndecorated(true);
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frame.setOpacity(0.0f);
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JPanel contentPane = new JPanel(new BorderLayout());
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contentPane.setDoubleBuffered(true);
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contentPane.add(browser.getUIComponent(), BorderLayout.CENTER);
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frame.setContentPane(contentPane);
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frame.addWindowListener(
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new java.awt.event.WindowAdapter() {
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@Override
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public void windowClosing(java.awt.event.WindowEvent windowEvent) {
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cleanup();
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System.exit(0);
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}
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});
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frame.setSize(1280, 768);
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frame.setLocationRelativeTo(null);
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loadIcon();
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}
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private void setupLoadHandler() {
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client.addLoadHandler(
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new CefLoadHandlerAdapter() {
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@Override
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public void onLoadingStateChange(
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CefBrowser browser,
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boolean isLoading,
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boolean canGoBack,
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boolean canGoForward) {
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log.info("Loading state changed: " + isLoading);
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if (!isLoading && !browserInitialized) {
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browserInitialized = true;
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SwingUtilities.invokeLater(
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() -> {
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if (loadingWindow != null) {
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Timer timer =
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new Timer(
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500,
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e -> {
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loadingWindow.dispose();
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loadingWindow = null;
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frame.dispose();
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frame.setOpacity(1.0f);
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frame.setUndecorated(false);
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frame.pack();
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frame.setSize(1280, 800);
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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frame.requestFocus();
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frame.toFront();
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browser.getUIComponent()
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.requestFocus();
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});
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timer.setRepeats(false);
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timer.start();
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}
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});
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}
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}
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});
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}
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private void setupTrayIcon(Image icon) {
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if (!SystemTray.isSupported()) {
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log.warn("System tray is not supported");
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return;
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}
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try {
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systemTray = SystemTray.getSystemTray();
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// Create popup menu
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PopupMenu popup = new PopupMenu();
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// Create menu items
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MenuItem showItem = new MenuItem("Show");
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showItem.addActionListener(
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e -> {
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frame.setVisible(true);
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frame.setState(Frame.NORMAL);
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});
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MenuItem exitItem = new MenuItem("Exit");
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exitItem.addActionListener(
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e -> {
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cleanup();
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System.exit(0);
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});
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// Add menu items to popup menu
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popup.add(showItem);
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popup.addSeparator();
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popup.add(exitItem);
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// Create tray icon
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trayIcon = new TrayIcon(icon, "Stirling-PDF", popup);
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trayIcon.setImageAutoSize(true);
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// Add double-click behavior
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trayIcon.addActionListener(
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e -> {
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frame.setVisible(true);
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frame.setState(Frame.NORMAL);
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});
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// Add tray icon to system tray
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systemTray.add(trayIcon);
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// Modify frame behavior to minimize to tray
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frame.addWindowStateListener(
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new WindowStateListener() {
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public void windowStateChanged(WindowEvent e) {
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if (e.getNewState() == Frame.ICONIFIED) {
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frame.setVisible(false);
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}
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}
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});
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} catch (AWTException e) {
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log.error("Error setting up system tray icon", e);
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}
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}
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private void loadIcon() {
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try {
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Image icon = null;
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String[] iconPaths = {"/static/favicon.ico"};
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for (String path : iconPaths) {
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if (icon != null) break;
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try {
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try (InputStream is = getClass().getResourceAsStream(path)) {
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if (is != null) {
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icon = ImageIO.read(is);
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break;
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}
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}
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} catch (Exception e) {
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log.debug("Could not load icon from " + path, e);
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}
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}
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if (icon != null) {
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frame.setIconImage(icon);
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setupTrayIcon(icon);
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log.info("Successfully set frame icon");
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} else {
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log.warn("Could not load icon from any source");
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}
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} catch (Exception e) {
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log.error("Error loading icon", e);
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}
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}
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@PreDestroy
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public void cleanup() {
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if (browser != null) browser.close(true);
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if (client != null) client.dispose();
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if (cefApp != null) cefApp.dispose();
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if (loadingWindow != null) loadingWindow.dispose();
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}
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}
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