Adds a browse button next to the path text field for aux-based groups

CHANGELOG.md

@@ -55,6 +55,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - We grouped and reordered the Main Menu (File, Edit, Library, Quality, Tools, and View tabs & icons). [#4666](https://github.com/JabRef/jabref/issues/4666) [#4667](https://github.com/JabRef/jabref/issues/4667) [#4668](https://github.com/JabRef/jabref/issues/4668) [#4669](https://github.com/JabRef/jabref/issues/4669) [#4670](https://github.com/JabRef/jabref/issues/4670) [#4671](https://github.com/JabRef/jabref/issues/4671) [#4672](https://github.com/JabRef/jabref/issues/4672) [#4673](https://github.com/JabRef/jabref/issues/4673)
 - We added additional modifiers (capitalize, titlecase and sentencecase) to the Bibtex key generator. [#1506](https://github.com/JabRef/jabref/issues/1506)
 - We grouped the toolbar icons and changed the Open Library and Copy icons. [#4584](https://github.com/JabRef/jabref/issues/4584) 
+- We added a browse button next to the path text field for aux-based groups. [#4586](https://github.com/JabRef/jabref/issues/4586)
 
 
 ### Fixed

src/main/java/org/jabref/gui/groups/GroupDialog.java

@@ -13,6 +13,7 @@
 import javafx.geometry.Insets;
 import javafx.geometry.Orientation;
 import javafx.scene.Node;
+import javafx.scene.control.Button;
 import javafx.scene.control.ButtonType;
 import javafx.scene.control.CheckBox;
 import javafx.scene.control.Label;
@@ -24,6 +25,7 @@
 import javafx.scene.control.Toggle;
 import javafx.scene.control.ToggleGroup;
 import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 import javafx.scene.text.Font;
@@ -33,13 +35,16 @@
 
 import org.jabref.Globals;
 import org.jabref.JabRefGUI;
+import org.jabref.gui.DialogService;
 import org.jabref.gui.JabRefFrame;
 import org.jabref.gui.search.rules.describer.SearchDescribers;
 import org.jabref.gui.util.BaseDialog;
+import org.jabref.gui.util.FileDialogConfiguration;
 import org.jabref.gui.util.TooltipTextUtil;
 import org.jabref.logic.auxparser.DefaultAuxParser;
 import org.jabref.logic.l10n.Localization;
 import org.jabref.logic.search.SearchQuery;
+import org.jabref.logic.util.StandardFileType;
 import org.jabref.model.database.BibDatabase;
 import org.jabref.model.entry.FieldName;
 import org.jabref.model.entry.Keyword;
@@ -105,6 +110,8 @@ class GroupDialog extends BaseDialog<AbstractGroup> {
 
     // for TexGroup
     private final TextField texGroupFilePath = new TextField();
+    private final Button texGroupBrowseButton = new Button("Browse");
+    private final HBox texGroupHBox = new HBox(10);
 
     // for all types
     private final TextFlow descriptionTextFlow = new TextFlow();
@@ -145,7 +152,7 @@ public GroupDialog(JabRefFrame jabrefFrame, AbstractGroup editedGroup) {
         VBox keywordPanel = createOptionsKeywordGroup();
         VBox searchPanel = createOptionsSearchGroup();
         VBox autoPanel = createOptionsAutoGroup();
-        VBox texPanel = createOptionsTexGroup();
+        VBox texPanel = createOptionsTexGroup(jabrefFrame);
         optionsPanel.getChildren().addAll(explicitPanel, keywordPanel, searchPanel, autoPanel, texPanel);
         optionsPanel.setPadding(new Insets(0, 0, 0, 10));
 
@@ -438,11 +445,16 @@ private static String formatRegExException(String regExp, Exception e) {
         return s;
     }
 
-    private VBox createOptionsTexGroup() {
+    private VBox createOptionsTexGroup(JabRefFrame jabRefFrame) {
         VBox texPanel = new VBox();
         texPanel.setVisible(false);
         texPanel.getChildren().add(new Label(Localization.lang("Aux file")));
-        texPanel.getChildren().add(texGroupFilePath);
+        EventHandler<ActionEvent> actionHandler = (ActionEvent e) -> openBrowseDialog(jabRefFrame);
+        texGroupBrowseButton.setOnAction(actionHandler);
+        texGroupHBox.getChildren().add(texGroupFilePath);
+        texGroupHBox.getChildren().add(texGroupBrowseButton);
+        texGroupHBox.setHgrow(texGroupFilePath, Priority.ALWAYS);
+        texPanel.getChildren().add(texGroupHBox);
         return texPanel;
     }
 
@@ -586,6 +598,15 @@ private void updateComponents() {
         getDialogPane().lookupButton(ButtonType.OK).setDisable(!okEnabled);
     }
 
+    private void openBrowseDialog(JabRefFrame jabRefFrame) {
+        DialogService dialogService = jabRefFrame.getDialogService();
+        FileDialogConfiguration fileDialogConfiguration = new FileDialogConfiguration.Builder()
+            .addExtensionFilter(StandardFileType.AUX)
+            .withDefaultExtension(StandardFileType.AUX)
+            .withInitialDirectory(Globals.prefs.get(JabRefPreferences.WORKING_DIRECTORY)).build();
+        dialogService.showFileOpenDialog(fileDialogConfiguration).ifPresent(file -> texGroupFilePath.setText(file.toAbsolutePath().toString()));
+    }
+
     private String fromTextFlowToHTMLString(TextFlow textFlow) {
         StringBuilder htmlStringBuilder = new StringBuilder();
         for (Node node : textFlow.getChildren()) {