Add PDF Viewer

CHANGELOG.md

@@ -35,6 +35,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
  - Redesigned error console.
  - All file dialogs now use the native file selector of the OS. [#1711](https://github.com/JabRef/jabref/issues/1711)
 - Switch to the [latex2unicode library](https://github.com/tomtung/latex2unicode) for converting LaTeX to unicode
+- We added a document viewer which allows you to have a glance at your PDF documents directly from within JabRef.
 - The MS Office XML export now exports the field `volumes` and `pubstate`.
 - The integrity checker reports now if a journal is not found in the abbreviation list
 - Comments in PDF files can now be displayed inside JabRef in a separate tab

build.gradle

@@ -114,6 +114,8 @@ dependencies {
  compile 'de.codecentric.centerdevice:javafxsvg:1.2.1'
  compile 'org.controlsfx:controlsfx:8.40.12'
  compile 'org.fxmisc.easybind:easybind:1.0.3'
+ compile 'org.fxmisc.flowless:flowless:0.5.2'
+ compile 'de.jensd:fontawesomefx-materialdesignfont:1.7.22-4'
 
 
  compile 'commons-logging:commons-logging:1.2'

external-libraries.txt

@@ -135,6 +135,16 @@ Projekt: EasyBind
 URL: https://github.com/TomasMikula/EasyBind
 License: BSD-2-Clause
 
+Id: org.fxmisc.flowless:flowless
+Projekt: Flowless
+URL: https://github.com/TomasMikula/Flowless
+License: BSD-2-Clause
+
+Id: de.jensd:fontawesomefx-materialdesignfont
+Projekt: FontAwesomeFX
+URL: https://bitbucket.org/Jerady/fontawesomefx
+License: Apache-2.0
+
 Id: org.jsoup:jsoup
 Project: jsoup
 URL: https://github.com/jhy/jsoup/

src/main/java/org/jabref/gui/AbstractView.java

@@ -22,7 +22,7 @@ public Parent getView() {
  Parent view = super.getView();
 
  // Add our base css file
- view.getStylesheets().add(AbstractDialogView.class.getResource("Main.css").toExternalForm());
+ view.getStylesheets().add(0, AbstractDialogView.class.getResource("Main.css").toExternalForm());
 
  // Notify controller about the stage, where it is displayed
  view.sceneProperty().addListener((observable, oldValue, newValue) -> {

src/main/java/org/jabref/gui/BasePanel.java

@@ -41,6 +41,8 @@
 import javax.swing.undo.CannotRedoException;
 import javax.swing.undo.CannotUndoException;
 
+import javafx.application.Platform;
+
 import org.jabref.Globals;
 import org.jabref.JabRefExecutorService;
 import org.jabref.collab.ChangeScanner;
@@ -237,6 +239,26 @@ public BasePanel(JabRefFrame frame, BibDatabaseContext bibDatabaseContext) {
  }
  }
 
+ public static void runWorker(AbstractWorker worker) throws Exception {
+ // This part uses Spin's features:
+ Runnable wrk = worker.getWorker();
+ // The Worker returned by getWorker() has been wrapped
+ // by Spin.off(), which makes its methods be run in
+ // a different thread from the EDT.
+ CallBack clb = worker.getCallBack();
+
+ worker.init(); // This method runs in this same thread, the EDT.
+ // Useful for initial GUI actions, like printing a message.
+
+ // The CallBack returned by getCallBack() has been wrapped
+ // by Spin.over(), which makes its methods be run on
+ // the EDT.
+ wrk.run(); // Runs the potentially time-consuming action
+ // without freezing the GUI. The magic is that THIS line
+ // of execution will not continue until run() is finished.
+ clb.update(); // Runs the update() method on the EDT.
+ }
+
  // Returns a collection of AutoCompleters, which are populated from the current library
  public ContentAutoCompleters getAutoCompleters() {
  return autoCompleters;
@@ -999,26 +1021,6 @@ public void runCommand(final String _command) {
  }
  }
 
- public static void runWorker(AbstractWorker worker) throws Exception {
- // This part uses Spin's features:
- Runnable wrk = worker.getWorker();
- // The Worker returned by getWorker() has been wrapped
- // by Spin.off(), which makes its methods be run in
- // a different thread from the EDT.
- CallBack clb = worker.getCallBack();
-
- worker.init(); // This method runs in this same thread, the EDT.
- // Useful for initial GUI actions, like printing a message.
-
- // The CallBack returned by getCallBack() has been wrapped
- // by Spin.over(), which makes its methods be run on
- // the EDT.
- wrk.run(); // Runs the potentially time-consuming action
- // without freezing the GUI. The magic is that THIS line
- // of execution will not continue until run() is finished.
- clb.update(); // Runs the update() method on the EDT.
- }
-
  private boolean saveDatabase(File file, boolean selectedOnly, Charset enc,
  SavePreferences.DatabaseSaveType saveType) throws SaveException {
  SaveSession session;
@@ -1230,7 +1232,8 @@ private void createMainTable() {
  mainTable.addFocusListener(selectionListener);
 
  // Add the listener that binds selection to state manager (TODO: should be replaced by proper JavaFX binding as soon as table is implemented in JavaFX)
- mainTable.addSelectionListener(listEvent -> Globals.stateManager.setSelectedEntries(mainTable.getSelectedEntries()));
+ mainTable.addSelectionListener(listEvent ->
+ Platform.runLater(() -> Globals.stateManager.setSelectedEntries(mainTable.getSelectedEntries())));
 
  String clearSearch = "clearSearch";
  mainTable.getInputMap().put(Globals.getKeyPrefs().getKey(KeyBinding.CLEAR_SEARCH), clearSearch);

src/main/java/org/jabref/gui/IconTheme.java

@@ -52,17 +52,21 @@ public class IconTheme {
  private static javafx.scene.text.Font FX_FONT;
 
  static {
- try (InputStream stream = FontBasedIcon.class.getResourceAsStream("/fonts/materialdesignicons-webfont.ttf")) {
+ try (InputStream stream = getMaterialDesignIconsStream()) {
  FONT = Font.createFont(Font.TRUETYPE_FONT, stream);
  FONT_16 = FONT.deriveFont(Font.PLAIN, 16f);
- try (InputStream stream2 = FontBasedIcon.class.getResourceAsStream("/fonts/materialdesignicons-webfont.ttf")) {
+ try (InputStream stream2 = getMaterialDesignIconsStream()) {
  FX_FONT = javafx.scene.text.Font.loadFont(stream2, JabRefPreferences.getInstance().getInt(JabRefPreferences.ICON_SIZE_LARGE));
  }
  } catch (FontFormatException | IOException e) {
  LOGGER.warn("Error loading font", e);
  }
  }
 
+ private static InputStream getMaterialDesignIconsStream() {
+ return FontBasedIcon.class.getResourceAsStream("/fonts/materialdesignicons-webfont.ttf");
+ }
+
  public static javafx.scene.paint.Color getDefaultColor() {
  return javafx.scene.paint.Color.rgb(DEFAULT_COLOR.getRed(), DEFAULT_COLOR.getGreen(), DEFAULT_COLOR.getBlue(), DEFAULT_COLOR.getAlpha() / 255.0);
  }
@@ -146,6 +150,18 @@ private static Map<String, String> readIconThemeFile(URL url, String prefix) {
  return result;
  }
 
+ public static List<java.awt.Image> getLogoSet() {
+ List<java.awt.Image> jabrefLogos = new ArrayList<>();
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon16")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon20")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon32")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon40")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon48")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon64")).getImage());
+ jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon128")).getImage());
+
+ return jabrefLogos;
+ }
 
  public enum JabRefIcon {
 
@@ -344,17 +360,4 @@ public FontBasedIcon createWithNewColor(Color newColor) {
  return new FontBasedIcon(this.iconCode, newColor, this.size);
  }
  }
-
- public static List<java.awt.Image> getLogoSet() {
- List<java.awt.Image> jabrefLogos = new ArrayList<>();
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon16")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon20")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon32")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon40")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon48")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon64")).getImage());
- jabrefLogos.add(new ImageIcon(getIconUrl("jabrefIcon128")).getImage());
-
- return jabrefLogos;
- }
 }

src/main/java/org/jabref/gui/JabRefFrame.java

@@ -81,6 +81,7 @@
 import org.jabref.gui.bibtexkeypattern.BibtexKeyPatternDialog;
 import org.jabref.gui.customentrytypes.EntryCustomizationDialog;
 import org.jabref.gui.dbproperties.DatabasePropertiesDialog;
+import org.jabref.gui.documentviewer.ShowDocumentViewerAction;
 import org.jabref.gui.exporter.ExportAction;
 import org.jabref.gui.exporter.ExportCustomizationDialog;
 import org.jabref.gui.exporter.SaveAllAction;
@@ -324,6 +325,7 @@ public void actionPerformed(ActionEvent e) {
  tlb.setVisible(!tlb.isVisible());
  }
  });
+ private final AbstractAction showPdvViewer = new ShowDocumentViewerAction();
  private final AbstractAction addToGroup = new GeneralAction(Actions.ADD_TO_GROUP, Localization.lang("Add to group") + ELLIPSES);
  private final AbstractAction removeFromGroup = new GeneralAction(Actions.REMOVE_FROM_GROUP,
  Localization.lang("Remove from group") + ELLIPSES);
@@ -1173,6 +1175,7 @@ private void fillMenu() {
  view.add(new JCheckBoxMenuItem(enableToggle(generalFetcher.getToggleAction())));
  view.add(new JCheckBoxMenuItem(groupSelector.getToggleAction()));
  view.add(new JCheckBoxMenuItem(togglePreview));
+ view.add(showPdvViewer);
  view.add(getNextPreviewStyleAction());
  view.add(getPreviousPreviewStyleAction());
 

src/main/java/org/jabref/gui/Main.css

@@ -32,6 +32,12 @@
  * A dark gray as background
  */
  -fx-dark-background: #757575;
+
+ /*
+ * A strong blue for backgrounds of active items (toggle button, selected list item)
+ */
+ -fx-active-background: #6A9FCD;
+
 }
 
 .hyperlink {
@@ -48,9 +54,31 @@
  .icon {
  -fx-font-family: 'Material Design Icons';
  -fx-font-size: 16.0;
+ }
+
+.glyph-icon {
+ -fx-font-size: 16.0;
+ -glyph-size: 16.0;
 }
 
 .tooltip {
  -fx-background-color: #757575; /* For some reason it does not work if we use -fx-dark-background here */
  -fx-effect:none;
 }
+
+.flatButton {
+ -fx-shadow-highlight-color: transparent;
+ -fx-outer-border: transparent;
+ -fx-inner-border: transparent;
+ -fx-focus-color: #6A9FCD;
+ -fx-faint-focus-color: transparent;
+ -fx-background-color: transparent;
+ -fx-text-background-color: dimgray;
+ -fx-padding: 0.5em;
+}
+
+.flatButton:selected {
+ -fx-background-color: -fx-active-background;
+ -fx-text-fill: white;
+ -fx-fill: white;
+}

src/main/java/org/jabref/gui/StateManager.java

@@ -51,12 +51,11 @@ public ReadOnlyObjectProperty<Optional<GroupTreeNode>> activeGroupProperty() {
  }
 
  public ObservableList<BibEntry> getSelectedEntries() {
- return FXCollections.unmodifiableObservableList(selectedEntries);
+ return selectedEntries;
  }
 
  public void setSelectedEntries(List<BibEntry> newSelectedEntries) {
- selectedEntries.clear();
- selectedEntries.addAll(newSelectedEntries);
+ selectedEntries.setAll(newSelectedEntries);
  }
 
  public void setSelectedGroup(BibDatabaseContext database, GroupTreeNode newSelectedGroup) {
@@ -72,6 +71,10 @@ public void clearSelectedGroup(BibDatabaseContext database) {
  selectedGroups.remove(database);
  }
 
+ public Optional<BibDatabaseContext> getActiveDatabase() {
+ return activeDatabase.get();
+ }
+
  public List<BibEntry> getEntriesInCurrentDatabase() {
  return OptionalUtil.flatMap(activeDatabase.get(), BibDatabaseContext::getEntries)
  .collect(Collectors.toList());

src/main/java/org/jabref/gui/documentviewer/DocumentPageViewModel.java

@@ -0,0 +1,26 @@
+package org.jabref.gui.documentviewer;
+
+import javafx.scene.image.Image;
+
+/**
+ * Represents the view model for a page in the document viewer.
+ */
+public abstract class DocumentPageViewModel {
+
+ /**
+ * Renders this page and returns an image representation of itself.
+ * @param width
+ * @param height
+ */
+ public abstract Image render(int width, int height);
+
+ /**
+ * Get the page number of the current page in the document.
+ */
+ public abstract int getPageNumber();
+
+ /**
+ * Calculates the aspect ratio (width / height) of the page.
+ */
+ public abstract double getAspectRatio();
+}

src/main/java/org/jabref/gui/documentviewer/DocumentViewModel.java

@@ -0,0 +1,19 @@
+package org.jabref.gui.documentviewer;
+
+import javafx.beans.property.IntegerProperty;
+import javafx.beans.property.SimpleIntegerProperty;
+import javafx.collections.ObservableList;
+
+public abstract class DocumentViewModel {
+ private IntegerProperty maxPages = new SimpleIntegerProperty();
+
+ public abstract ObservableList<DocumentPageViewModel> getPages();
+
+ public int getMaxPages() {
+ return maxPages.get();
+ }
+
+ public IntegerProperty maxPagesProperty() {
+ return maxPages;
+ }
+}

src/main/java/org/jabref/gui/documentviewer/DocumentViewer.css

@@ -0,0 +1,10 @@
+#mainPane {
+ -fx-background-color: -fx-accented-background;
+ -fx-padding: 0;
+}
+
+.document-viewer .page {
+ -fx-padding: 0em 0em 1em 0em;
+ -fx-background-insets: 0;
+}
+