feat: support open reference at google scholar

jabgui/src/main/java/org/jabref/gui/actions/StandardActions.java

@@ -37,6 +37,8 @@ public enum StandardActions implements Action {
     EXTRACT_FILE_REFERENCES_OFFLINE(Localization.lang("Extract references from file (offline)"), IconTheme.JabRefIcons.FILE_STAR),
     OPEN_URL(Localization.lang("Open URL or DOI"), IconTheme.JabRefIcons.WWW, KeyBinding.OPEN_URL_OR_DOI),
     SEARCH_SHORTSCIENCE(Localization.lang("Search ShortScience")),
+    SEARCH_GOOGLE_SCHOLAR(Localization.lang("Search Google Scholar")),
+    SEARCH(Localization.lang("Search...")),
     MERGE_WITH_FETCHED_ENTRY(Localization.lang("Get bibliographic data from %0", "DOI/ISBN/..."), KeyBinding.MERGE_WITH_FETCHED_ENTRY),
     BATCH_MERGE_WITH_FETCHED_ENTRY(Localization.lang("Get bibliographic data from %0 (fully automated)", "DOI/ISBN/...")),
     ATTACH_FILE(Localization.lang("Attach file"), IconTheme.JabRefIcons.ATTACH_FILE),

jabgui/src/main/java/org/jabref/gui/maintable/MainTable.java

@@ -163,7 +163,8 @@ public MainTable(MainTableDataModel model,
                         taskExecutor,
                         Injector.instantiateModelOrService(JournalAbbreviationRepository.class),
                         entryTypesManager,
-                        importHandler))
+                        importHandler,
+                        preferences.getImporterPreferences()))
                 .withPseudoClass(MATCHING_SEARCH_AND_GROUPS, entry -> entry.matchCategory().isEqualTo(MatchCategory.MATCHING_SEARCH_AND_GROUPS))
                 .withPseudoClass(MATCHING_SEARCH_NOT_GROUPS, entry -> entry.matchCategory().isEqualTo(MatchCategory.MATCHING_SEARCH_NOT_GROUPS))
                 .withPseudoClass(MATCHING_GROUPS_NOT_SEARCH, entry -> entry.matchCategory().isEqualTo(MatchCategory.MATCHING_GROUPS_NOT_SEARCH))

jabgui/src/main/java/org/jabref/gui/maintable/RightClickMenu.java

@@ -36,6 +36,7 @@
 import org.jabref.gui.specialfields.SpecialFieldMenuItemFactory;
 import org.jabref.logic.citationstyle.CitationStyleOutputFormat;
 import org.jabref.logic.citationstyle.CitationStylePreviewLayout;
+import org.jabref.logic.importer.ImporterPreferences;
 import org.jabref.logic.importer.WebFetchers;
 import org.jabref.logic.journals.JournalAbbreviationRepository;
 import org.jabref.logic.l10n.Localization;
@@ -62,7 +63,8 @@ public static ContextMenu create(BibEntryTableViewModel entry,
                                      TaskExecutor taskExecutor,
                                      JournalAbbreviationRepository abbreviationRepository,
                                      BibEntryTypesManager entryTypesManager,
-                                     ImportHandler importHandler) {
+                                     ImportHandler importHandler,
+                                     ImporterPreferences importerPreferences) {
         ActionFactory factory = new ActionFactory();
         ContextMenu contextMenu = new ContextMenu();
 
@@ -101,8 +103,7 @@ public static ContextMenu create(BibEntryTableViewModel entry,
                 extractFileReferencesOffline,
 
                 factory.createMenuItem(StandardActions.OPEN_URL, new OpenUrlAction(dialogService, stateManager, preferences)),
-                factory.createMenuItem(StandardActions.SEARCH_SHORTSCIENCE, new SearchShortScienceAction(dialogService, stateManager, preferences)),
-
+                createSearchSubMenu(factory, dialogService, stateManager, preferences, importerPreferences),
                 new SeparatorMenuItem(),
 
                 new ChangeEntryTypeMenu(libraryTab.getSelectedEntries(), libraryTab.getBibDatabaseContext(), undoManager, entryTypesManager).asSubMenu(),
@@ -219,4 +220,17 @@ private static Menu createSendSubMenu(ActionFactory factory,
 
         return sendMenu;
     }
+
+    private static Menu createSearchSubMenu(ActionFactory factory,
+                                            DialogService dialogService,
+                                            StateManager stateManager,
+                                            GuiPreferences preferences,
+                                            ImporterPreferences importerPreferences) {
+        Menu searchMenu = factory.createMenu(StandardActions.SEARCH);
+        searchMenu.getItems().addAll(
+                factory.createMenuItem(StandardActions.SEARCH_SHORTSCIENCE, new SearchShortScienceAction(dialogService, stateManager, preferences, importerPreferences)),
+                factory.createMenuItem(StandardActions.SEARCH_GOOGLE_SCHOLAR, new SearchGoogleScholarAction(dialogService, stateManager, preferences, importerPreferences))
+        );
+        return searchMenu;
+    }
 }

jabgui/src/main/java/org/jabref/gui/maintable/SearchGoogleScholarAction.java

@@ -0,0 +1,51 @@
+package org.jabref.gui.maintable;
+
+import java.io.IOException;
+import java.util.List;
+
+import javafx.beans.binding.BooleanExpression;
+
+import org.jabref.gui.DialogService;
+import org.jabref.gui.StateManager;
+import org.jabref.gui.actions.SimpleCommand;
+import org.jabref.gui.desktop.os.NativeDesktop;
+import org.jabref.gui.preferences.GuiPreferences;
+import org.jabref.logic.importer.ImporterPreferences;
+import org.jabref.logic.l10n.Localization;
+import org.jabref.logic.util.ExternalLinkCreator;
+import org.jabref.model.entry.BibEntry;
+import org.jabref.model.entry.field.StandardField;
+
+import static org.jabref.gui.actions.ActionHelper.isFieldSetForSelectedEntry;
+import static org.jabref.gui.actions.ActionHelper.needsEntriesSelected;
+
+public class SearchGoogleScholarAction extends SimpleCommand {
+    private final DialogService dialogService;
+    private final StateManager stateManager;
+    private final GuiPreferences preferences;
+    private final ExternalLinkCreator externalLinkCreator;
+
+    public SearchGoogleScholarAction(DialogService dialogService, StateManager stateManager, GuiPreferences preferences, ImporterPreferences importerPreferences) {
+        this.dialogService = dialogService;
+        this.stateManager = stateManager;
+        this.preferences = preferences;
+        this.externalLinkCreator = new ExternalLinkCreator(importerPreferences);
+
+        BooleanExpression fieldIsSet = isFieldSetForSelectedEntry(StandardField.TITLE, stateManager);
+        this.executable.bind(needsEntriesSelected(1, stateManager).and(fieldIsSet));
+    }
+
+    @Override
+    public void execute() {
+        stateManager.getActiveDatabase().ifPresent(databaseContext -> {
+            final List<BibEntry> bibEntries = stateManager.getSelectedEntries();
+            externalLinkCreator.getGoogleScholarSearchURL(bibEntries.getFirst()).ifPresent(url -> {
+                try {
+                    NativeDesktop.openExternalViewer(databaseContext, preferences, url, StandardField.URL, dialogService, bibEntries.getFirst());
+                } catch (IOException ex) {
+                    dialogService.showErrorDialogAndWait(Localization.lang("Unable to open Google Scholar."), ex);
+                }
+            });
+        });
+    }
+}

jabgui/src/main/java/org/jabref/gui/maintable/SearchShortScienceAction.java

@@ -10,6 +10,7 @@
 import org.jabref.gui.actions.SimpleCommand;
 import org.jabref.gui.desktop.os.NativeDesktop;
 import org.jabref.gui.preferences.GuiPreferences;
+import org.jabref.logic.importer.ImporterPreferences;
 import org.jabref.logic.l10n.Localization;
 import org.jabref.logic.util.ExternalLinkCreator;
 import org.jabref.model.entry.BibEntry;
@@ -22,11 +23,13 @@ public class SearchShortScienceAction extends SimpleCommand {
     private final DialogService dialogService;
     private final StateManager stateManager;
     private final GuiPreferences preferences;
+    private final ExternalLinkCreator externalLinkCreator;
 
-    public SearchShortScienceAction(DialogService dialogService, StateManager stateManager, GuiPreferences preferences) {
+    public SearchShortScienceAction(DialogService dialogService, StateManager stateManager, GuiPreferences preferences, ImporterPreferences importerPreferences) {
         this.dialogService = dialogService;
         this.stateManager = stateManager;
         this.preferences = preferences;
+        this.externalLinkCreator = new ExternalLinkCreator(importerPreferences);
 
         BooleanExpression fieldIsSet = isFieldSetForSelectedEntry(StandardField.TITLE, stateManager);
         this.executable.bind(needsEntriesSelected(1, stateManager).and(fieldIsSet));
@@ -41,7 +44,7 @@ public void execute() {
                 dialogService.notify(Localization.lang("This operation requires exactly one item to be selected."));
                 return;
             }
-            ExternalLinkCreator.getShortScienceSearchURL(bibEntries.getFirst()).ifPresent(url -> {
+            externalLinkCreator.getShortScienceSearchURL(bibEntries.getFirst()).ifPresent(url -> {
                 try {
                     NativeDesktop.openExternalViewer(databaseContext, preferences, url, StandardField.URL, dialogService, bibEntries.getFirst());
                 } catch (IOException ex) {

jabgui/src/main/java/org/jabref/gui/preferences/websearch/SearchEngineItem.java

@@ -0,0 +1,34 @@
+package org.jabref.gui.preferences.websearch;
+
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+
+public class SearchEngineItem {
+    private final StringProperty name;
+    private final StringProperty urlTemplate;
+
+    public SearchEngineItem(String name, String urlTemplate) {
+        this.name = new SimpleStringProperty(name);
+        this.urlTemplate = new SimpleStringProperty(urlTemplate);
+    }
+
+    public StringProperty nameProperty() {
+        return name;
+    }
+
+    public StringProperty urlTemplateProperty() {
+        return urlTemplate;
+    }
+
+    public String getName() {
+        return name.get();
+    }
+
+    public String getUrlTemplate() {
+        return urlTemplate.get();
+    }
+
+    public void setUrlTemplate(String urlTemplate) {
+        this.urlTemplate.set(urlTemplate);
+    }
+}

jabgui/src/main/java/org/jabref/gui/preferences/websearch/WebSearchTab.java

@@ -45,6 +45,10 @@ public class WebSearchTab extends AbstractPreferenceTabView<WebSearchTabViewMode
     @FXML private CheckBox grobidEnabled;
     @FXML private TextField grobidURL;
 
+    @FXML private TableView<SearchEngineItem> searchEngineTable;
+    @FXML private TableColumn<SearchEngineItem, String> searchEngineName;
+    @FXML private TableColumn<SearchEngineItem, String> searchEngineUrlTemplate;
+
     @FXML private TableView<FetcherApiKey> apiKeySelectorTable;
     @FXML private TableColumn<FetcherApiKey, String> apiKeyName;
     @FXML private TableColumn<FetcherApiKey, String> customApiKey;
@@ -75,6 +79,16 @@ public String getTabName() {
     public void initialize() {
         this.viewModel = new WebSearchTabViewModel(preferences, dialogService, refAiEnabled);
 
+        searchEngineName.setCellValueFactory(param -> param.getValue().nameProperty());
+        searchEngineName.setCellFactory(TextFieldTableCell.forTableColumn());
+        searchEngineName.setEditable(false);
+
+        searchEngineUrlTemplate.setCellValueFactory(param -> param.getValue().urlTemplateProperty());
+        searchEngineUrlTemplate.setCellFactory(TextFieldTableCell.forTableColumn());
+        searchEngineUrlTemplate.setEditable(true);
+
+        searchEngineTable.setItems(viewModel.getSearchEngines());
+
         enableWebSearch.selectedProperty().bindBidirectional(viewModel.enableWebSearchProperty());
         warnAboutDuplicatesOnImport.selectedProperty().bindBidirectional(viewModel.warnAboutDuplicatesOnImportProperty());
         downloadLinkedOnlineFiles.selectedProperty().bindBidirectional(viewModel.shouldDownloadLinkedOnlineFiles());

jabgui/src/main/java/org/jabref/gui/preferences/websearch/WebSearchTabViewModel.java

@@ -2,6 +2,7 @@
 
 import java.io.IOException;
 import java.net.HttpURLConnection;
+import java.util.Map;
 import java.util.Optional;
 import java.util.stream.Collectors;
 
@@ -68,6 +69,8 @@ public class WebSearchTabViewModel implements PreferenceTabViewModel {
     private final BooleanProperty apikeyPersistProperty = new SimpleBooleanProperty();
     private final BooleanProperty apikeyPersistAvailableProperty = new SimpleBooleanProperty();
 
+    private final ObservableList<SearchEngineItem> searchEngines = FXCollections.observableArrayList();
+
     private final DialogService dialogService;
     private final CliPreferences preferences;
     private final DOIPreferences doiPreferences;
@@ -92,6 +95,7 @@ public WebSearchTabViewModel(CliPreferences preferences, DialogService dialogSer
         this.refAiEnabled = refAiEnabled;
 
         setupPlainCitationParsers(preferences);
+        setupSearchEngines();
     }
 
     private void setupPlainCitationParsers(CliPreferences preferences) {
@@ -132,6 +136,14 @@ private void setupPlainCitationParsers(CliPreferences preferences) {
         });
     }
 
+    private void setupSearchEngines() {
+        // Add default search engines
+        searchEngines.addAll(
+                new SearchEngineItem("Google Scholar", "https://scholar.google.com/scholar?q={title}"),
+                new SearchEngineItem("Short Science", "https://www.shortscience.org/internalsearch?q={title}")
+        );
+    }
+
     @Override
     public void setValues() {
         enableWebSearchProperty.setValue(importerPreferences.areImporterEnabled());
@@ -164,6 +176,13 @@ public void setValues() {
                                        return new StudyCatalogItem(name, enabled);
                                    })
                                    .toList());
+
+        // Load custom URL templates from preferences if they exist
+        Map<String, String> savedTemplates = preferences.getImporterPreferences().getSearchEngineUrlTemplates();
+        if (!savedTemplates.isEmpty()) {
+            searchEngines.clear();
+            savedTemplates.forEach((name, url) -> searchEngines.add(new SearchEngineItem(name, url)));
+        }
     }
 
     @Override
@@ -196,6 +215,14 @@ public void storeSettings() {
         if (apikeyPersistAvailableProperty.get()) {
             preferences.getImporterPreferences().getApiKeys().addAll(apiKeys);
         }
+
+        // Save custom URL templates to preferences
+        Map<String, String> templates = searchEngines.stream()
+                                                     .collect(Collectors.toMap(
+                                                             SearchEngineItem::getName,
+                                                             SearchEngineItem::getUrlTemplate
+                                                     ));
+        preferences.getImporterPreferences().setSearchEngineUrlTemplates(templates);
     }
 
     public BooleanProperty enableWebSearchProperty() {
@@ -270,6 +297,10 @@ public IntegerProperty citationsRelationsStoreTTLProperty() {
         return citationsRelationStoreTTL;
     }
 
+    public ObservableList<SearchEngineItem> getSearchEngines() {
+        return searchEngines;
+    }
+
     public void checkCustomApiKey() {
         final String apiKeyName = selectedApiKeyProperty.get().getName();
 

jabgui/src/main/resources/org/jabref/gui/preferences/websearch/WebSearchTab.fxml

@@ -11,6 +11,8 @@
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.control.ComboBox?>
+<?import org.jabref.gui.preferences.websearch.SearchEngineItem?>
+
 <fx:root spacing="10.0" type="VBox"
          xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml"
          fx:controller="org.jabref.gui.preferences.websearch.WebSearchTab">
@@ -66,6 +68,28 @@
         <TextField fx:id="grobidURL" HBox.hgrow="ALWAYS"/>
     </HBox>
 
+    <Label styleClass="sectionHeader" text="%Search Engine URL Templates"/>
+    <Label text="%( Note: Press return to commit changes in the table! )"/>
+    <TableView
+            fx:id="searchEngineTable"
+            VBox.vgrow="ALWAYS"
+            editable="true">
+        <columns>
+            <TableColumn minWidth="120"
+                         fx:id="searchEngineName"
+                         text="%Search Engine"
+                         editable="false"/>
+            <TableColumn minWidth="300"
+                         fx:id="searchEngineUrlTemplate"
+                         text="%URL Template"
+                         editable="true"/>
+        </columns>
+        <columnResizePolicy>
+            <TableView
+                    fx:constant="CONSTRAINED_RESIZE_POLICY"/>
+        </columnResizePolicy>
+    </TableView>
+
     <Label styleClass="sectionHeader" text="%Custom API key"/>
     <Label text="%( Note: Press return to commit changes in the table! )"/>
     <TableView

jablib/src/main/java/org/jabref/logic/importer/ImporterPreferences.java

@@ -1,6 +1,7 @@
 package org.jabref.logic.importer;
 
 import java.nio.file.Path;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -32,6 +33,7 @@ public class ImporterPreferences {
     private final ObservableList<String> catalogs;
     private final ObjectProperty<PlainCitationParserChoice> defaultPlainCitationParser;
     private final IntegerProperty citationsRelationsStoreTTL;
+    private final Map<String, String> searchEngineUrlTemplates;
 
     public ImporterPreferences(boolean importerEnabled,
                                boolean generateNewKeyOnImport,
@@ -43,7 +45,8 @@ public ImporterPreferences(boolean importerEnabled,
                                boolean persistCustomKeys,
                                List<String> catalogs,
                                PlainCitationParserChoice defaultPlainCitationParser,
-                               int citationsRelationsStoreTTL
+                               int citationsRelationsStoreTTL,
+                               Map<String, String> searchEngineUrlTemplates
     ) {
         this.importerEnabled = new SimpleBooleanProperty(importerEnabled);
         this.generateNewKeyOnImport = new SimpleBooleanProperty(generateNewKeyOnImport);
@@ -56,6 +59,7 @@ public ImporterPreferences(boolean importerEnabled,
         this.catalogs = FXCollections.observableArrayList(catalogs);
         this.defaultPlainCitationParser = new SimpleObjectProperty<>(defaultPlainCitationParser);
         this.citationsRelationsStoreTTL = new SimpleIntegerProperty(citationsRelationsStoreTTL);
+        this.searchEngineUrlTemplates = new HashMap<>(searchEngineUrlTemplates);
     }
 
     public boolean areImporterEnabled() {
@@ -150,7 +154,7 @@ public void setCatalogs(List<String> catalogs) {
     }
 
     public ObservableList<String> getCatalogs() {
-          return catalogs;
+        return catalogs;
     }
 
     public PlainCitationParserChoice getDefaultPlainCitationParser() {
@@ -176,4 +180,13 @@ public IntegerProperty citationsRelationsStoreTTLProperty() {
     public void setCitationsRelationsStoreTTL(int citationsRelationsStoreTTL) {
         this.citationsRelationsStoreTTL.set(citationsRelationsStoreTTL);
     }
+
+    public Map<String, String> getSearchEngineUrlTemplates() {
+        return searchEngineUrlTemplates;
+    }
+
+    public void setSearchEngineUrlTemplates(Map<String, String> templates) {
+        searchEngineUrlTemplates.clear();
+        searchEngineUrlTemplates.putAll(templates);
+    }
 }

jablib/src/main/java/org/jabref/logic/preferences/JabRefCliPreferences.java

@@ -2077,7 +2077,8 @@ public ImporterPreferences getImporterPreferences() {
                 getBoolean(FETCHER_CUSTOM_KEY_PERSIST),
                 getStringList(SEARCH_CATALOGS),
                 PlainCitationParserChoice.valueOf(get(DEFAULT_PLAIN_CITATION_PARSER)),
-                getInt(CITATIONS_RELATIONS_STORE_TTL)
+                getInt(CITATIONS_RELATIONS_STORE_TTL),
+                Map.of()
         );
 
         EasyBind.listen(importerPreferences.importerEnabledProperty(), (_, _, newValue) -> putBoolean(IMPORTERS_ENABLED, newValue));