Refactor: Add locking of entryList during operations

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/ZipEntryManager.java

@@ -150,6 +150,7 @@ public class ZipEntryManager {
 
         decompressBtn.setOnAction(e -> {
             disableTaskButtons();
+            setEntryListLocked(true);
             Thread t = new Thread(() -> {
                 CityGmlZipEntry entry = entryList.getSelectionModel().getSelectedItem().getEntry();
                 logger.info("Decompressing entry \"{}\"", entry.getDisplayName());
@@ -158,6 +159,8 @@ public class ZipEntryManager {
                 );
                 Platform.runLater(() -> {
                     populateZipEntryList(entryList.getSelectionModel().getSelectedIndex());
+                    progress.setProgress(0);
+                    setEntryListLocked(false);
                 });
             });
             t.setDaemon(true);
@@ -167,8 +170,7 @@ public class ZipEntryManager {
 
         loadBtn.setOnAction(e -> {
             disableTaskButtons();
-            entryList.setMouseTransparent(true);
-            entryList.setFocusTraversable(false);
+            setEntryListLocked(true);
             try {
                 int selectedIndex = entryList.getSelectionModel().getSelectedIndex();
                 if (selectedIndex == currentlyLoadedEntry) {
@@ -189,14 +191,14 @@ public class ZipEntryManager {
                 currentlyLoadedEntry = selectedIndex;
                 stage.hide();
             } finally {
-                entryList.setMouseTransparent(false);
-                entryList.setFocusTraversable(true);
+                setEntryListLocked(false);
             }
 
         });
 
         decompressAllBtn.setOnAction(e -> {
             disableTaskButtons();
+            setEntryListLocked(true);
             subProgress.setVisible(true);
             subProgress.setProgress(0);
             Thread t = new Thread(() -> {
@@ -215,6 +217,8 @@ public class ZipEntryManager {
                 Platform.runLater(() -> {
                     subProgress.setVisible(false);
                     populateZipEntryList(entryList.getSelectionModel().getSelectedIndex());
+                    progress.setProgress(0);
+                    setEntryListLocked(false);
                 });
             });
             t.setDaemon(true);
@@ -329,6 +333,11 @@ public class ZipEntryManager {
         }
     }
 
+    private void setEntryListLocked(boolean locked) {
+        entryList.setMouseTransparent(locked);
+        entryList.setFocusTraversable(!locked);
+    }
+
     public void show() {
         Platform.runLater(() -> {
             stage.showAndWait();