Initial sync

META-INF/MANIFEST.MF

@@ -10,8 +10,9 @@ Require-Bundle: org.eclipse.ui,
  org.eclipse.ui.editors;bundle-version="3.17.0",
  org.eclipse.text,
  Java-WebSocket;bundle-version="1.5.4",
- wrapped.me.mrletsplay.ShareClient-Core;bundle-version="1.0.0",
+ org.eclipse.core.resources;bundle-version="3.19.100",
- org.eclipse.core.resources;bundle-version="3.19.100"
+ wrapped.me.mrletsplay.ShareLib;bundle-version="1.0.0",
+ org.eclipse.ui.ide;bundle-version="3.22.0"
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Automatic-Module-Name: ShareClient
 Bundle-ActivationPolicy: lazy

src/main/java/me/mrletsplay/shareclient/ShareClient.java

@@ -4,13 +4,20 @@ import java.io.IOException;
 import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.ArrayList;
+import java.util.HashMap;
-import java.util.List;
+import java.util.Map;
 import java.util.Random;
 import java.util.UUID;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IWorkspace;
+import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
@@ -18,6 +25,7 @@ import org.osgi.framework.BundleContext;
 
 import me.mrletsplay.shareclient.util.Peer;
 import me.mrletsplay.shareclient.util.ProjectRelativePath;
+import me.mrletsplay.shareclient.util.ShareSession;
 import me.mrletsplay.shareclient.views.ShareView;
 import me.mrletsplay.shareclientcore.connection.ConnectionException;
 import me.mrletsplay.shareclientcore.connection.MessageListener;
@@ -26,6 +34,7 @@ import me.mrletsplay.shareclientcore.connection.WebSocketConnection;
 import me.mrletsplay.shareclientcore.connection.message.FullSyncMessage;
 import me.mrletsplay.shareclientcore.connection.message.Message;
 import me.mrletsplay.shareclientcore.connection.message.PeerJoinMessage;
+import me.mrletsplay.shareclientcore.connection.message.RequestFullSyncMessage;
 
 /**
  * The activator class controls the plug-in life cycle
@@ -38,15 +47,11 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 	// The shared instance
 	private static ShareClient plugin;
 
-	private RemoteConnection activeConnection;
 	private ShareView view;
-	private List<Peer> peers;
+	private ShareSession activeSession;
 
-	/**
-	 * The constructor
-	 */
 	public ShareClient() {
-		this.peers = new ArrayList<>();
+
 	}
 
 	@Override
@@ -55,6 +60,7 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 		plugin = this;
 
 		getPreferenceStore().setDefault(ShareClientPreferences.SERVER_URI, "ws://localhost:5473");
+		getPreferenceStore().setDefault(ShareClientPreferences.SHOW_CURSORS, true);
 //		new ShareWSClient(URI.create("ws://localhost:5473")).connect();
 	}
 
@@ -73,52 +79,56 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 		return plugin;
 	}
 
-	private void updateView() {
+	public void updateView() {
 		if (view == null) return;
-		Display.getDefault().asyncExec(() -> view.getViewer().setInput(peers.stream().map(p -> p.name()).toArray(String[]::new)));
+		Display.getDefault().asyncExec(() -> view.updateActionBars());
+
+		if (activeSession == null) return;
+		String[] peerNames = activeSession.getPeers().stream().map(p -> p.name()).toArray(String[]::new);
+		Display.getDefault().asyncExec(() -> view.getViewer().setInput(peerNames));
 	}
 
-	public RemoteConnection openConnection(String sessionID) {
+	public ShareSession startSession(String sessionID) {
 		String serverURI = getPreferenceStore().getString(ShareClientPreferences.SERVER_URI);
 		if (serverURI == null) return null;
 
 		String username = getPreferenceStore().getString(ShareClientPreferences.USERNAME);
-		if(username == null || username.isBlank()) username = "user" + new Random().nextInt(1000);
+		if (username == null || username.isBlank())
+			username = "user" + new Random().nextInt(1000);
 
 		WebSocketConnection connection = new WebSocketConnection(URI.create(serverURI), username);
 		try {
 			connection.connect(sessionID); // TODO: connect to existing session
 		} catch (ConnectionException e) {
-			MessageDialog.openInformation(
+			e.printStackTrace();
-				null,
+			MessageDialog.openError(null, "Share Client", "Failed to connect to server: " + e);
-				"Share Client",
-				"Failed to connect to server: " + e);
 			return null;
 		}
 
 		connection.addListener(this);
 
-		return activeConnection = connection;
+		updateView();
+		return activeSession = new ShareSession(connection, sessionID);
 	}
 
-	public RemoteConnection getOrOpenConnection() {
+	public ShareSession getOrStartSession() {
-		if(activeConnection == null) {
+		if (activeSession == null) {
-			openConnection(UUID.randomUUID().toString());
+			startSession(UUID.randomUUID().toString());
 		}
 
-		return activeConnection;
+		return activeSession;
 	}
 
 	public void closeConnection() {
-		if(activeConnection == null) return;
+		if (activeSession == null) return;
-		activeConnection.disconnect();
+		ShareSession session = activeSession;
-		activeConnection = null;
+		activeSession = null;
-		peers.clear();
+		session.stop();
 		updateView();
 	}
 
-	public RemoteConnection getActiveConnection() {
+	public ShareSession getActiveSession() {
-		return activeConnection;
+		return activeSession;
 	}
 
 	public void setView(ShareView view) {
@@ -133,7 +143,7 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 	public void onMessage(Message message) {
 		System.out.println("Got: " + message);
 		if (message instanceof PeerJoinMessage join) {
-			peers.add(new Peer(join.peerName(), join.peerSiteID()));
+			activeSession.getPeers().add(new Peer(join.peerName(), join.peerSiteID()));
 			updateView();
 		}
 
@@ -143,11 +153,27 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 			try {
 				path = ProjectRelativePath.of(sync.documentPath());
 			} catch (IllegalArgumentException e) {
+				e.printStackTrace();
 				return;
 			}
 
-			IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(path.projectName());
+			IWorkspace workspace = ResourcesPlugin.getWorkspace();
-			if(project == null) return; // TODO: create project
+			IWorkspaceRoot workspaceRoot = workspace.getRoot();
+			IProject project = workspaceRoot.getProject(path.projectName());
+			if(project == null) return;
+			// TODO: make sure to not overwrite existing non-shared projects
+			if (!project.exists()) {
+				IProjectDescription description = workspace.newProjectDescription(path.projectName());
+				try {
+					project.create(description, null);
+					project.open(null);
+				} catch (CoreException e) {
+					e.printStackTrace();
+					MessageDialog.openError(null, "Share Client", "Failed to create project: " + e.toString());
+					return;
+				}
+				System.out.println("Created project " + project);
+			}
 
 			Path filePath = project.getLocation().toPath().resolve(path.relativePath());
 			try {
@@ -157,10 +183,76 @@ public class ShareClient extends AbstractUIPlugin implements MessageListener {
 				}
 
 				Files.write(filePath, sync.content());
-			} catch (IOException e) {
+				project.refreshLocal(IResource.DEPTH_INFINITE, null);
-				// TODO: handle exception
+			} catch (IOException | CoreException e) {
+				e.printStackTrace();
+				MessageDialog.openError(null, "Share Client", "Failed to update file: " + e.toString());
+				return;
+			}
+		}
+
+		if (message instanceof RequestFullSyncMessage req) {
+			Map<ProjectRelativePath, Path> paths = new HashMap<>();
+			if (req.documentPath() == null) {
+				// Sync entire (shared) workspace
+				for (IProject project : activeSession.getSharedProjects()) {
+					var files = getProjectFiles(project);
+					if (files == null) return;
+					paths.putAll(files);
+				}
+			} else {
+				ProjectRelativePath path;
+				try {
+					path = ProjectRelativePath.of(req.documentPath());
+				} catch (IllegalArgumentException e) {
+					return;
+				}
+
+				IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(path.projectName());
+				if (project == null || !project.exists()) return;
+				if (!activeSession.getSharedProjects().contains(project)) return;
+
+				if (!path.relativePath().isEmpty()) {
+					Path projectLocation = project.getLocation().toPath();
+					Path filePath = projectLocation.resolve(path.relativePath()).normalize();
+					if (!filePath.startsWith(projectLocation)) return;
+					paths.put(new ProjectRelativePath(project.getName(), path.relativePath()), filePath);
+				} else {
+					// Sync entire project
+					var files = getProjectFiles(project);
+					if (files == null) return;
+					paths.putAll(files);
+				}
+			}
+
+			RemoteConnection connection = activeSession.getConnection();
+			for (var en : paths.entrySet()) {
+				if (!Files.isRegularFile(en.getValue()))
+					continue;
+				try {
+					byte[] bytes = Files.readAllBytes(en.getValue());
+					connection.send(new FullSyncMessage(req.siteID(), en.getKey().toString(), bytes));
+				} catch (IOException | ConnectionException e) {
+					e.printStackTrace();
+					MessageDialog.openError(null, "Share Client", "Failed to send file contents: " + e.toString());
+					return;
+				}
 			}
 		}
 	}
 
+	private Map<ProjectRelativePath, Path> getProjectFiles(IProject project) {
+		try {
+			Path projectLocation = project.getLocation().toPath();
+			return Files.walk(projectLocation)
+					.collect(Collectors.toMap(
+							p -> new ProjectRelativePath(project.getName(), projectLocation.relativize(p).toString()),
+							Function.identity()));
+		} catch (IOException e) {
+			e.printStackTrace();
+			MessageDialog.openError(null, "Share Client", "Failed to collect project files: " + e.toString());
+			return null;
+		}
+	}
+
 }

src/main/java/me/mrletsplay/shareclient/handlers/ShareProjectHandler.java

@@ -12,7 +12,7 @@ import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.handlers.HandlerUtil;
 
 import me.mrletsplay.shareclient.ShareClient;
-import me.mrletsplay.shareclientcore.connection.RemoteConnection;
+import me.mrletsplay.shareclient.util.ShareSession;
 
 public class ShareProjectHandler extends AbstractHandler {
 
@@ -32,10 +32,12 @@ public class ShareProjectHandler extends AbstractHandler {
 		IPath path = project.getLocation();
 		if(path == null) return null;
 
-		RemoteConnection con = ShareClient.getDefault().getOrOpenConnection();
+		ShareSession session = ShareClient.getDefault().getOrStartSession();
-		if(con == null) return null;
+		if(session == null) return null;
 
-		// TODO: handle case when adding project to existing session
+		session.getSharedProjects().add(project);
+
+		// TODO: broadcast FULL_SYNC for newly added project
 
 //		IEditorPart editor = window.getActivePage().getActiveEditor();
 //		if(!(editor instanceof ITextEditor)) return null;

src/main/java/me/mrletsplay/shareclient/util/ShareSession.java

@@ -0,0 +1,55 @@
+package me.mrletsplay.shareclient.util;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
+import org.eclipse.core.resources.IProject;
+
+import me.mrletsplay.shareclient.ShareClient;
+import me.mrletsplay.shareclientcore.connection.RemoteConnection;
+
+public class ShareSession {
+
+	private RemoteConnection connection;
+	private String sessionID;
+	private List<IProject> sharedProjects;
+	private List<Peer> peers;
+
+	public ShareSession(RemoteConnection connection, String sessionID) {
+		this.connection = connection;
+		this.sessionID = sessionID;
+		this.sharedProjects = new ArrayList<>();
+		this.peers = new ArrayList<>();
+	}
+
+	public RemoteConnection getConnection() {
+		return connection;
+	}
+
+	public String getSessionID() {
+		return sessionID;
+	}
+
+	public List<IProject> getSharedProjects() {
+		return sharedProjects;
+	}
+
+	public List<Peer> getPeers() {
+		return peers;
+	}
+
+	public boolean hasRemotePeer() {
+		return peers.stream().anyMatch(p -> p.siteID() != connection.getSiteID());
+	}
+
+	public boolean isHost() {
+		return peers.stream().max(Comparator.comparingInt(p -> p.siteID())).get().siteID() == connection.getSiteID();
+	}
+
+	public void stop() {
+		connection.disconnect();
+		ShareClient.getDefault().updateView();
+	}
+
+}

src/main/java/me/mrletsplay/shareclient/views/ShareView.java

@@ -18,8 +18,12 @@ import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.swt.SWT;
+import org.eclipse.swt.dnd.Clipboard;
+import org.eclipse.swt.dnd.TextTransfer;
+import org.eclipse.swt.dnd.Transfer;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.IActionBars;
 import org.eclipse.ui.IViewSite;
 import org.eclipse.ui.IWorkbench;
@@ -28,6 +32,7 @@ import org.eclipse.ui.dialogs.PreferencesUtil;
 import org.eclipse.ui.part.ViewPart;
 
 import me.mrletsplay.shareclient.ShareClient;
+import me.mrletsplay.shareclient.util.ShareSession;
 import me.mrletsplay.shareclientcore.connection.ConnectionException;
 import me.mrletsplay.shareclientcore.connection.RemoteConnection;
 import me.mrletsplay.shareclientcore.connection.message.RequestFullSyncMessage;
@@ -90,7 +95,7 @@ public class ShareView extends ViewPart {
 		updateActionBars();
 	}
 
-	private void updateActionBars() {
+	public void updateActionBars() {
 		IActionBars bars = getViewSite().getActionBars();
 		IToolBarManager toolbars = bars.getToolBarManager();
 
@@ -106,11 +111,13 @@ public class ShareView extends ViewPart {
 				input.setBlockOnOpen(true);
 				if(input.open() != InputDialog.OK) return;
 
-				RemoteConnection connection = ShareClient.getDefault().getActiveConnection();
+				ShareSession session = ShareClient.getDefault().getActiveSession();
-				if(connection != null) connection.disconnect();
+				if(session != null) session.stop();
 
-				connection = ShareClient.getDefault().openConnection(input.getValue());
+				session = ShareClient.getDefault().startSession(input.getValue());
-				if(connection == null) return;
+				if(session == null) return;
+
+				RemoteConnection connection = session.getConnection();
 
 				try {
 					connection.send(new RequestFullSyncMessage(connection.getSiteID(), null));
@@ -122,7 +129,17 @@ public class ShareView extends ViewPart {
 			}
 
 		};
-		if(ShareClient.getDefault().getActiveConnection() == null) toolbars.add(joinSession);
+
+		Action copySessionID = new Action("Copy session ID", ImageDescriptor.createFromFile(ShareView.class, "/icons/content-copy.png")) {
+
+			@Override
+			public void run() {
+				Clipboard clipboard = new Clipboard(Display.getDefault());
+				clipboard.setContents(new String[] {ShareClient.getDefault().getActiveSession().getSessionID()}, new Transfer[] {TextTransfer.getInstance()});
+			}
+
+		};
+
 
 		Action leaveSession = new Action("Leave session", ImageDescriptor.createFromFile(ShareView.class, "/icons/stop.png")) {
 
@@ -133,7 +150,6 @@ public class ShareView extends ViewPart {
 			}
 
 		};
-		if(ShareClient.getDefault().getActiveConnection() != null) toolbars.add(leaveSession);
 
 		Action showSettings = new Action("Settings", ImageDescriptor.createFromFile(ShareView.class, "/icons/cog.png")) {
 
@@ -146,6 +162,14 @@ public class ShareView extends ViewPart {
 			}
 
 		};
+
+		if(ShareClient.getDefault().getActiveSession() == null) {
+			toolbars.add(joinSession);
+		}else {
+			toolbars.add(copySessionID);
+			toolbars.add(leaveSession);
+		}
+
 		toolbars.add(showSettings);
 
 		bars.updateActionBars();