Fix Preferences style value too long

CHANGELOG.md

@@ -43,6 +43,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed the paste entry command in the menu and toolbar, that did not do anything. [#6293](https://github.com/JabRef/jabref/issues/6293)
 - We fixed an issue where the windows installer did not create an entry in the start menu [bug report in the forum](https://discourse.jabref.org/t/error-while-fetching-from-doi/2018/3)
 - We fixed an issue where JabRef switched to discrete graphics under macOS [#5935](https://github.com/JabRef/jabref/issues/5935)
+- We fixed an issue where the Preferences entry preview will be unexpected modified leads to Value too long exception [#6198](https://github.com/JabRef/jabref/issues/6198)
 
 ### Removed
 

src/main/java/org/jabref/gui/preferences/PreviewTabView.java

@@ -211,7 +211,7 @@ private void dragDetectedInAvailable(MouseEvent event) {
         List<PreviewLayout> selectedLayouts = new ArrayList<>(viewModel.availableSelectionModelProperty().getValue().getSelectedItems());
         if (!selectedLayouts.isEmpty()) {
             Dragboard dragboard = startDragAndDrop(TransferMode.MOVE);
-            viewModel.dragDetected(viewModel.availableListProperty(), selectedLayouts, dragboard);
+            viewModel.dragDetected(viewModel.availableListProperty(), viewModel.availableSelectionModelProperty(), selectedLayouts, dragboard);
         }
         event.consume();
     }
@@ -220,7 +220,7 @@ private void dragDetectedInChosen(MouseEvent event) {
         List<PreviewLayout> selectedLayouts = new ArrayList<>(viewModel.chosenSelectionModelProperty().getValue().getSelectedItems());
         if (!selectedLayouts.isEmpty()) {
             Dragboard dragboard = startDragAndDrop(TransferMode.MOVE);
-            viewModel.dragDetected(viewModel.chosenListProperty(), selectedLayouts, dragboard);
+            viewModel.dragDetected(viewModel.chosenListProperty(), viewModel.chosenSelectionModelProperty(), selectedLayouts, dragboard);
         }
         event.consume();
     }

src/main/java/org/jabref/gui/preferences/PreviewTabViewModel.java

@@ -68,6 +68,7 @@ public class PreviewTabViewModel implements PreferenceTabViewModel {
     private final CustomLocalDragboard localDragboard;
     private Validator chosenListValidator;
     private ListProperty<PreviewLayout> dragSourceList = null;
+    private ObjectProperty<MultipleSelectionModel<PreviewLayout>> dragSourceSelectionModel = null;
 
     public PreviewTabViewModel(DialogService dialogService, JabRefPreferences preferences, TaskExecutor taskExecutor, StateManager stateManager) {
         this.dialogService = dialogService;
@@ -231,12 +232,14 @@ public boolean validateSettings() {
 
     public void addToChosen() {
         List<PreviewLayout> selected = new ArrayList<>(availableSelectionModelProperty.getValue().getSelectedItems());
+        availableSelectionModelProperty.getValue().clearSelection();
         availableListProperty.removeAll(selected);
         chosenListProperty.addAll(selected);
     }
 
     public void removeFromChosen() {
         List<PreviewLayout> selected = new ArrayList<>(chosenSelectionModelProperty.getValue().getSelectedItems());
+        chosenSelectionModelProperty.getValue().clearSelection();
         chosenListProperty.removeAll(selected);
         availableListProperty.addAll(selected);
         availableListProperty.sort((a, b) -> a.getName().compareToIgnoreCase(b.getName()));
@@ -249,6 +252,7 @@ public void selectedInChosenUp() {
 
         List<Integer> selected = new ArrayList<>(chosenSelectionModelProperty.getValue().getSelectedIndices());
         List<Integer> newIndices = new ArrayList<>();
+        chosenSelectionModelProperty.getValue().clearSelection();
 
         for (int oldIndex : selected) {
             boolean alreadyTaken = newIndices.contains(oldIndex - 1);
@@ -257,7 +261,6 @@ public void selectedInChosenUp() {
             newIndices.add(newIndex);
         }
 
-        chosenSelectionModelProperty.getValue().clearSelection();
         newIndices.forEach(index -> chosenSelectionModelProperty.getValue().select(index));
         chosenSelectionModelProperty.getValue().select(newIndices.get(0));
         refreshPreview();
@@ -270,6 +273,7 @@ public void selectedInChosenDown() {
 
         List<Integer> selected = new ArrayList<>(chosenSelectionModelProperty.getValue().getSelectedIndices());
         List<Integer> newIndices = new ArrayList<>();
+        chosenSelectionModelProperty.getValue().clearSelection();
 
         for (int i = selected.size() - 1; i >= 0; i--) {
             int oldIndex = selected.get(i);
@@ -279,7 +283,6 @@ public void selectedInChosenDown() {
             newIndices.add(newIndex);
         }
 
-        chosenSelectionModelProperty.getValue().clearSelection();
         newIndices.forEach(index -> chosenSelectionModelProperty.getValue().select(index));
         chosenSelectionModelProperty.getValue().select(newIndices.get(0));
         refreshPreview();
@@ -365,12 +368,13 @@ public void dragOver(DragEvent event) {
         }
     }
 
-    public void dragDetected(ListProperty<PreviewLayout> sourceList, List<PreviewLayout> selectedLayouts, Dragboard dragboard) {
+    public void dragDetected(ListProperty<PreviewLayout> sourceList, ObjectProperty<MultipleSelectionModel<PreviewLayout>> sourceSelectionModel, List<PreviewLayout> selectedLayouts, Dragboard dragboard) {
         ClipboardContent content = new ClipboardContent();
         content.put(DragAndDropDataFormats.PREVIEWLAYOUTS, "");
         dragboard.setContent(content);
         localDragboard.putPreviewLayouts(selectedLayouts);
         dragSourceList = sourceList;
+        dragSourceSelectionModel = sourceSelectionModel;
     }
 
     /**
@@ -386,6 +390,7 @@ public boolean dragDropped(ListProperty<PreviewLayout> targetList, Dragboard dra
         if (dragboard.hasContent(DragAndDropDataFormats.PREVIEWLAYOUTS)) {
             List<PreviewLayout> draggedLayouts = localDragboard.getPreviewLayouts();
             if (!draggedLayouts.isEmpty()) {
+                dragSourceSelectionModel.getValue().clearSelection();
                 dragSourceList.getValue().removeAll(draggedLayouts);
                 targetList.getValue().addAll(draggedLayouts);
                 success = true;
@@ -412,7 +417,7 @@ public boolean dragDroppedInChosenCell(PreviewLayout targetLayout, Dragboard dra
         if (dragboard.hasContent(DragAndDropDataFormats.PREVIEWLAYOUTS)) {
             List<PreviewLayout> draggedSelectedLayouts = new ArrayList<>(localDragboard.getPreviewLayouts());
             if (!draggedSelectedLayouts.isEmpty()) {
-
+                chosenSelectionModelProperty.getValue().clearSelection();
                 int targetId = chosenListProperty.getValue().indexOf(targetLayout);
 
                 // see https://stackoverflow.com/questions/28603224/sort-tableview-with-drag-and-drop-rows
@@ -427,7 +432,7 @@ public boolean dragDroppedInChosenCell(PreviewLayout targetLayout, Dragboard dra
                     }
                     targetLayout = chosenListProperty.getValue().get(targetId);
                 }
-
+                dragSourceSelectionModel.getValue().clearSelection();
                 dragSourceList.getValue().removeAll(draggedSelectedLayouts);
 
                 if (targetLayout != null) {
@@ -438,7 +443,6 @@ public boolean dragDroppedInChosenCell(PreviewLayout targetLayout, Dragboard dra
 
                 chosenListProperty.getValue().addAll(targetId, draggedSelectedLayouts);
 
-                chosenSelectionModelProperty.getValue().clearSelection();
                 draggedSelectedLayouts.forEach(layout -> chosenSelectionModelProperty.getValue().select(layout));
 
                 success = true;