fix(gui): disable actions if files not loaded (#1644)

jadx-gui/src/main/java/jadx/gui/ui/MainWindow.java

@@ -132,6 +132,7 @@ import jadx.gui.update.JadxUpdate.IUpdateCallback;
 import jadx.gui.update.data.Release;
 import jadx.gui.utils.CacheObject;
 import jadx.gui.utils.FontUtils;
+import jadx.gui.utils.ILoadListener;
 import jadx.gui.utils.Icons;
 import jadx.gui.utils.LafManager;
 import jadx.gui.utils.Link;
@@ -211,6 +212,9 @@ public class MainWindow extends JFrame {
 	private JDebuggerPanel debuggerPanel;
 	private JSplitPane verticalSplitter;
 
+	private List<ILoadListener> loadListeners = new ArrayList<>();
+	private boolean loaded;
+
 	public MainWindow(JadxSettings settings) {
 		this.settings = settings;
 		this.cacheObject = new CacheObject();
@@ -488,6 +492,7 @@ public class MainWindow extends JFrame {
 	}
 
 	private void closeAll() {
+		notifyLoadListeners(false);
 		cancelBackgroundJobs();
 		clearTree();
 		resetCache();
@@ -526,7 +531,10 @@ public class MainWindow extends JFrame {
 
 		backgroundExecutor.execute(NLS.str("progress.load"),
 				this::restoreOpenTabs,
-				status -> runInitialBackgroundJobs());
+				status -> {
+					runInitialBackgroundJobs();
+					notifyLoadListeners(true);
+				});
 	}
 
 	public void updateLiveReload(boolean state) {
@@ -1210,6 +1218,22 @@ public class MainWindow extends JFrame {
 		toolbar.add(updateLink);
 
 		mainPanel.add(toolbar, BorderLayout.NORTH);
+
+		addLoadListener(loaded -> {
+			textSearchAction.setEnabled(loaded);
+			clsSearchAction.setEnabled(loaded);
+			commentSearchAction.setEnabled(loaded);
+			backAction.setEnabled(loaded);
+			forwardAction.setEnabled(loaded);
+			syncAction.setEnabled(loaded);
+			saveAllAction.setEnabled(loaded);
+			exportAction.setEnabled(loaded);
+			saveProjectAsAction.setEnabled(loaded);
+			reload.setEnabled(loaded);
+			deobfAction.setEnabled(loaded);
+			quarkAction.setEnabled(loaded);
+			return false;
+		});
 	}
 
 	private void initUI() {
@@ -1499,6 +1523,17 @@ public class MainWindow extends JFrame {
 		settings.setDebuggerVarTreeSplitterLoc(debuggerPanel.getRightSplitterLocation());
 	}
 
+	public void addLoadListener(ILoadListener loadListener) {
+		this.loadListeners.add(loadListener);
+		// set initial value
+		loadListener.update(loaded);
+	}
+
+	public void notifyLoadListeners(boolean loaded) {
+		this.loaded = loaded;
+		loadListeners.removeIf(listener -> listener.update(loaded));
+	}
+
 	public JadxWrapper getWrapper() {
 		return wrapper;
 	}

jadx-gui/src/main/java/jadx/gui/ui/codearea/FindUsageAction.java

@@ -3,6 +3,7 @@ package jadx.gui.ui.codearea;
 import java.awt.event.KeyEvent;
 
 import jadx.gui.treemodel.JNode;
+import jadx.gui.ui.MainWindow;
 import jadx.gui.ui.dialog.UsageDialog;
 import jadx.gui.utils.NLS;
 
@@ -18,7 +19,15 @@ public final class FindUsageAction extends JNodeAction {
 
 	@Override
 	public void runAction(JNode node) {
-		UsageDialog usageDialog = new UsageDialog(getCodeArea().getMainWindow(), node);
+		MainWindow mw = getCodeArea().getMainWindow();
+		UsageDialog usageDialog = new UsageDialog(mw, node);
+		mw.addLoadListener(loaded -> {
+			if (!loaded) {
+				usageDialog.dispose();
+				return true;
+			}
+			return false;
+		});
 		usageDialog.setVisible(true);
 	}
 }

jadx-gui/src/main/java/jadx/gui/ui/dialog/SearchDialog.java

@@ -81,17 +81,28 @@ public class SearchDialog extends CommonSearchDialog {
 
 	public static void search(MainWindow window, SearchPreset preset) {
 		SearchDialog searchDialog = new SearchDialog(window, preset, Collections.emptySet());
-		searchDialog.setVisible(true);
+		show(searchDialog, window);
 	}
 
 	public static void searchInActiveTab(MainWindow window, SearchPreset preset) {
 		SearchDialog searchDialog = new SearchDialog(window, preset, EnumSet.of(SearchOptions.ACTIVE_TAB));
-		searchDialog.setVisible(true);
+		show(searchDialog, window);
 	}
 
 	public static void searchText(MainWindow window, String text) {
 		SearchDialog searchDialog = new SearchDialog(window, SearchPreset.TEXT, Collections.emptySet());
 		searchDialog.initSearchText = text;
+		show(searchDialog, window);
+	}
+
+	private static void show(SearchDialog searchDialog, MainWindow mw) {
+		mw.addLoadListener(loaded -> {
+			if (!loaded) {
+				searchDialog.dispose();
+				return true;
+			}
+			return false;
+		});
 		searchDialog.setVisible(true);
 	}
 

jadx-gui/src/main/java/jadx/gui/utils/ILoadListener.java

@@ -0,0 +1,11 @@
+package jadx.gui.utils;
+
+public interface ILoadListener {
+
+	/**
+	 * Update files/project loaded state
+	 *
+	 * @return true to remove listener
+	 */
+	boolean update(boolean loaded);
+}