Double click on citation opens LaTeX editor

src/main/java/org/jabref/gui/entryeditor/LatexCitationsTab.java

@@ -59,6 +59,7 @@ private void setSearchPane() {
         citationsDisplay.basePathProperty().bindBidirectional(viewModel.directoryProperty());
         citationsDisplay.setItems(viewModel.getCitationList());
 
+        citationsDisplay.setOnMouseClicked(event -> viewModel.handleMouseClick(event, citationsDisplay));
         RowConstraints mainRow = new RowConstraints();
         mainRow.setVgrow(Priority.ALWAYS);
 

src/main/java/org/jabref/gui/entryeditor/LatexCitationsTabViewModel.java

@@ -15,10 +15,16 @@
 import javafx.beans.property.StringProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
+import javafx.scene.input.MouseButton;
+import javafx.scene.input.MouseEvent;
 
 import org.jabref.gui.AbstractViewModel;
 import org.jabref.gui.DialogService;
 import org.jabref.gui.preferences.GuiPreferences;
+import org.jabref.gui.push.PushToApplication;
+import org.jabref.gui.push.PushToApplications;
+import org.jabref.gui.push.PushToEmacs;
+import org.jabref.gui.texparser.CitationsDisplay;
 import org.jabref.gui.util.DirectoryDialogConfiguration;
 import org.jabref.gui.util.UiTaskExecutor;
 import org.jabref.logic.l10n.Localization;
@@ -154,6 +160,26 @@ public void onDirectoryDelete(File directory) {
         };
     }
 
+    // Handle mouse click event
+    public void handleMouseClick(MouseEvent event, CitationsDisplay citationsDisplay) {
+        // Get the currently selected item
+        Citation selectedItem = citationsDisplay.getSelectionModel().getSelectedItem();
+
+        // Check if the left mouse button was double-clicked
+        if (event.getButton() == MouseButton.PRIMARY && event.getClickCount() == 2 && selectedItem != null) {
+            // Perform a jump or other actions
+            String applicationName = preferences.getPushToApplicationPreferences()
+                                                .getActiveApplicationName();
+            PushToApplication application = PushToApplications.getApplicationByName(
+                                                                      applicationName,
+                                                                      dialogService,
+                                                                      preferences)
+                                                              .orElse(new PushToEmacs(dialogService, preferences));
+            preferences.getPushToApplicationPreferences().setActiveApplicationName(application.getDisplayName());
+            application.publicJumpToLine(selectedItem.path(), selectedItem.line(), selectedItem.colStart());
+        }
+    }
+
     public void bindToEntry(BibEntry entry) {
         checkAndUpdateDirectory();
 

src/main/java/org/jabref/gui/push/AbstractPushToApplication.java

@@ -1,6 +1,7 @@
 package org.jabref.gui.push;
 
 import java.io.IOException;
+import java.nio.file.Path;
 import java.util.List;
 import java.util.Optional;
 
@@ -181,4 +182,40 @@ public Optional<KeyBinding> getKeyBinding() {
             return Optional.of(KeyBinding.PUSH_TO_APPLICATION);
         }
     }
+
+    /**
+     * This function is to jump to a specific line due to different editor.
+     *
+     */
+    protected void jumpToLine(Path fileName, int line, int column) {
+        commandPath = preferences.getPushToApplicationPreferences().getCommandPaths().get(this.getDisplayName());
+
+        // Check if a path to the command has been specified
+        if (StringUtil.isNullOrEmpty(commandPath)) {
+            notDefined = true;
+            return;
+        }
+
+        // Execute the command
+        String[] command = jumpString(fileName, line, column);
+
+        try {
+            ProcessBuilder processBuilder = new ProcessBuilder(command);
+            processBuilder.start();
+        } catch (IOException e) {
+            // Use robust logging instead of printStackTrace()
+            LOGGER.error("Could not open TeXstudio at the specified location.", e);
+
+            // Show an error dialog to the user
+            dialogService.showErrorDialogAndWait("Error", "Could not open TeXstudio at the specified location.");
+        }
+    }
+
+    protected String[] jumpString(Path fileName, int line, int column) {
+        return new String[0];
+    }
+
+    public void publicJumpToLine(Path fileName, int line, int column) {
+        jumpToLine(fileName, line, column);
+    }
 }

src/main/java/org/jabref/gui/push/PushToApplication.java

@@ -1,5 +1,6 @@
 package org.jabref.gui.push;
 
+import java.nio.file.Path;
 import java.util.List;
 
 import org.jabref.gui.actions.Action;
@@ -56,4 +57,6 @@ public interface PushToApplication {
     PushToApplicationSettings getSettings(PushToApplication application, PushToApplicationPreferences pushToApplicationPreferences);
 
     String getDelimiter();
+
+    void publicJumpToLine(Path fileName, int line, int column);
 }

src/main/java/org/jabref/gui/push/PushToApplicationCommand.java

@@ -142,4 +142,8 @@ private void pushEntries() {
         BibDatabaseContext database = stateManager.getActiveDatabase().orElseThrow(() -> new NullPointerException("Database null"));
         application.pushEntries(database, stateManager.getSelectedEntries(), getKeyString(stateManager.getSelectedEntries(), application.getDelimiter()));
     }
+//    private void jump(Path fileName, int line, int column) {
+//        BibDatabaseContext database = stateManager.getActiveDatabase().orElseThrow(() -> new NullPointerException("Database null"));
+//        application.publicJumpToLine(database, stateManager.getSelectedEntries(), getKeyString(stateManager.getSelectedEntries(), application.getDelimiter()));
+//    }
 }

src/main/java/org/jabref/gui/push/PushToTeXstudio.java

@@ -1,5 +1,7 @@
 package org.jabref.gui.push;
 
+import java.nio.file.Path;
+
 import org.jabref.gui.DialogService;
 import org.jabref.gui.icon.IconTheme;
 import org.jabref.gui.icon.JabRefIcon;
@@ -27,4 +29,13 @@ public JabRefIcon getApplicationIcon() {
     protected String[] getCommandLine(String keyString) {
         return new String[] {commandPath, "--insert-cite", "%s%s%s".formatted(getCitePrefix(), keyString, getCiteSuffix())};
     }
+
+    /**
+     * Method to open TeXstudio at the given line number in the specified LaTeX file.
+     */
+    @Override
+    public String[] jumpString(Path fileName, int line, int column) {
+        // Construct the TeXstudio command
+        return new String[] {commandPath, "--line", Integer.toString(line), fileName.toString()};
+    }
 }