Dave Jarvis' Repositories

git clone https://repo.autonoma.ca/repo/keenwrite.git
keenwrite / Commits / abf1ebd

Remove duplicate references to notifier

AuthorDaveJarvis <email>
Date2020-09-12 15:09:12 GMT-0700
Commitabf1ebd53b9645e577228fa849fa2f2accaaa4bb
Parent12c89ee
Delta1324 lines added, 1309 lines removed, 15-line increase
src/main/java/com/scrivenvar/service/GlobalNotifier.java
+package com.scrivenvar.service;
+
+import com.scrivenvar.Services;
+import com.scrivenvar.service.events.Notifier;
+
+import java.util.Observer;
+
+/**
+ * Responsible for passing notifications about exceptions (or other error
+ * messages) through the application. Once the Event Bus is implemented, this
+ * class can go away.
+ */
+public class GlobalNotifier {
+ private static final Notifier sNotifier = Services.load( Notifier.class );
+
+ public static void clearAlert() {
+ getNotifier().clear();
+ }
+
+ public static void alert( final String msg ) {
+ getNotifier().alert( msg );
+ }
+
+ /**
+ * Called when an exception occurs that warrants the user's attention.
+ *
+ * @param ex The exception with a message that the user should know about.
+ */
+ public static void alert( final Exception ex ) {
+ getNotifier().alert( ex );
+ }
+
+ /**
+ * Adds an observer to the list of objects that receive notifications about
+ * error messages to be presented to the user.
+ *
+ * @param observer The observer instance to notify.
+ * @deprecated Use event bus instead.
+ */
+ public void addObserver( final Observer observer ) {
+ getNotifier().addObserver( observer );
+ }
+
+ public static Notifier getNotifier() {
+ return sNotifier;
+ }
+}
src/main/java/com/scrivenvar/Main.java
import static com.scrivenvar.Constants.*;
import static com.scrivenvar.Messages.get;
+import static com.scrivenvar.service.GlobalNotifier.alert;
import static java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment;
import static java.awt.font.TextAttribute.*;
}
- /**
- * Must be static, otherwise instant crash.
- */
- private static final Notifier sNotifier = Services.load( Notifier.class );
private final Options mOptions = Services.load( Options.class );
private final Snitch mSnitch = Services.load( Snitch.class );
thread.interrupt();
thread.join();
- }
-
- private static void alert( final Exception ex ) {
- getNotifier().alert( ex );
- }
-
- private static Notifier getNotifier() {
- return sNotifier;
}
src/main/java/com/scrivenvar/MainWindow.java
import static com.scrivenvar.Constants.*;
import static com.scrivenvar.Messages.get;
-import static com.scrivenvar.util.StageState.*;
-import static de.jensd.fx.glyphs.fontawesome.FontAwesomeIcon.*;
-import static java.nio.charset.StandardCharsets.UTF_8;
-import static java.util.Collections.emptyList;
-import static java.util.Collections.singleton;
-import static javafx.application.Platform.runLater;
-import static javafx.event.Event.fireEvent;
-import static javafx.scene.input.KeyCode.ENTER;
-import static javafx.scene.input.KeyCode.TAB;
-import static javafx.stage.WindowEvent.WINDOW_CLOSE_REQUEST;
-import static org.fxmisc.richtext.model.TwoDimensional.Bias.Forward;
-
-/**
- * Main window containing a tab pane in the center for file editors.
- */
-public class MainWindow implements Observer {
- /**
- * The {@code OPTIONS} variable must be declared before all other variables
- * to prevent subsequent initializations from failing due to missing user
- * preferences.
- */
- private static final Options sOptions = Services.load( Options.class );
- private static final Snitch SNITCH = Services.load( Snitch.class );
- private static final Notifier sNotifier = Services.load( Notifier.class );
-
- private final Scene mScene;
- private final StatusBar mStatusBar;
- private final Text mLineNumberText;
- private final TextField mFindTextField;
- private final SpellChecker mSpellChecker;
-
- private final Object mMutex = new Object();
-
- /**
- * Prevents re-instantiation of processing classes.
- */
- private final Map<FileEditorTab, Processor<String>> mProcessors =
- new HashMap<>();
-
- private final Map<String, String> mResolvedMap =
- new HashMap<>( DEFAULT_MAP_SIZE );
-
- private final EventHandler<PreferencesFxEvent> mRPreferencesListener =
- event -> rerender();
-
- /**
- * Called when the definition data is changed.
- */
- private final EventHandler<TreeItem.TreeModificationEvent<Event>>
- mTreeHandler = event -> {
- exportDefinitions( getDefinitionPath() );
- interpolateResolvedMap();
- rerender();
- };
-
- /**
- * Called to switch to the definition pane when the user presses the TAB key.
- */
- private final EventHandler<? super KeyEvent> mTabKeyHandler =
- (EventHandler<KeyEvent>) event -> {
- if( event.getCode() == TAB ) {
- getDefinitionPane().requestFocus();
- event.consume();
- }
- };
-
- /**
- * Called to inject the selected item when the user presses ENTER in the
- * definition pane.
- */
- private final EventHandler<? super KeyEvent> mDefinitionKeyHandler =
- event -> {
- if( event.getCode() == ENTER ) {
- getVariableNameInjector().injectSelectedItem();
- }
- };
-
- private final ChangeListener<Integer> mCaretPositionListener =
- ( observable, oldPosition, newPosition ) -> {
- final FileEditorTab tab = getActiveFileEditorTab();
- final EditorPane pane = tab.getEditorPane();
- final StyleClassedTextArea editor = pane.getEditor();
-
- getLineNumberText().setText(
- get( STATUS_BAR_LINE,
- editor.getCurrentParagraph() + 1,
- editor.getParagraphs().size(),
- editor.getCaretPosition()
- )
- );
- };
-
- private final ChangeListener<Integer> mCaretParagraphListener =
- ( observable, oldIndex, newIndex ) ->
- scrollToParagraph( newIndex, true );
-
- private DefinitionSource mDefinitionSource = createDefaultDefinitionSource();
- private final DefinitionPane mDefinitionPane = new DefinitionPane();
- private final HTMLPreviewPane mPreviewPane = createHTMLPreviewPane();
- private final FileEditorTabPane mFileEditorPane = new FileEditorTabPane(
- mCaretPositionListener,
- mCaretParagraphListener );
-
- /**
- * Listens on the definition pane for double-click events.
- */
- private final DefinitionNameInjector mVariableNameInjector
- = new DefinitionNameInjector( mDefinitionPane );
-
- public MainWindow() {
- sNotifier.addObserver( this );
-
- mStatusBar = createStatusBar();
- mLineNumberText = createLineNumberText();
- mFindTextField = createFindTextField();
- mScene = createScene();
- mSpellChecker = createSpellChecker();
-
- // Add the close request listener before the window is shown.
- initLayout();
- }
-
- /**
- * Called after the stage is shown.
- */
- public void init() {
- initFindInput();
- initSnitch();
- initDefinitionListener();
- initTabAddedListener();
- initTabChangedListener();
- initPreferences();
- initVariableNameInjector();
- }
-
- private void initLayout() {
- final var scene = getScene();
-
- scene.getStylesheets().add( STYLESHEET_SCENE );
- scene.windowProperty().addListener(
- ( unused, oldWindow, newWindow ) ->
- newWindow.setOnCloseRequest(
- e -> {
- if( !getFileEditorPane().closeAllEditors() ) {
- e.consume();
- }
- }
- )
- );
- }
-
- /**
- * Initialize the find input text field to listen on F3, ENTER, and
- * ESCAPE key presses.
- */
- private void initFindInput() {
- final TextField input = getFindTextField();
-
- input.setOnKeyPressed( ( KeyEvent event ) -> {
- switch( event.getCode() ) {
- case F3:
- case ENTER:
- editFindNext();
- break;
- case F:
- if( !event.isControlDown() ) {
- break;
- }
- case ESCAPE:
- getStatusBar().setGraphic( null );
- getActiveFileEditorTab().getEditorPane().requestFocus();
- break;
- }
- } );
-
- // Remove when the input field loses focus.
- input.focusedProperty().addListener(
- ( focused, oldFocus, newFocus ) -> {
- if( !newFocus ) {
- getStatusBar().setGraphic( null );
- }
- }
- );
- }
-
- /**
- * Watch for changes to external files. In particular, this awaits
- * modifications to any XSL files associated with XML files being edited.
- * When
- * an XSL file is modified (external to the application), the snitch's ears
- * perk up and the file is reloaded. This keeps the XSL transformation up to
- * date with what's on the file system.
- */
- private void initSnitch() {
- SNITCH.addObserver( this );
- }
-
- /**
- * Listen for {@link FileEditorTabPane} to receive open definition file
- * event.
- */
- private void initDefinitionListener() {
- getFileEditorPane().onOpenDefinitionFileProperty().addListener(
- ( final ObservableValue<? extends Path> file,
- final Path oldPath, final Path newPath ) -> {
- openDefinitions( newPath );
- rerender();
- }
- );
- }
-
- /**
- * Re-instantiates all processors then re-renders the active tab. This
- * will refresh the resolved map, force R to re-initialize, and brute-force
- * XSLT file reloads.
- */
- private void rerender() {
- runLater(
- () -> {
- resetProcessors();
- renderActiveTab();
- }
- );
- }
-
- /**
- * When tabs are added, hook the various change listeners onto the new
- * tab sothat the preview pane refreshes as necessary.
- */
- private void initTabAddedListener() {
- final FileEditorTabPane editorPane = getFileEditorPane();
-
- // Make sure the text processor kicks off when new files are opened.
- final ObservableList<Tab> tabs = editorPane.getTabs();
-
- // Update the preview pane on tab changes.
- tabs.addListener(
- ( final Change<? extends Tab> change ) -> {
- while( change.next() ) {
- if( change.wasAdded() ) {
- // Multiple tabs can be added simultaneously.
- for( final Tab newTab : change.getAddedSubList() ) {
- final FileEditorTab tab = (FileEditorTab) newTab;
-
- initTextChangeListener( tab );
- initTabKeyEventListener( tab );
- initScrollEventListener( tab );
- initSpellCheckListener( tab );
-// initSyntaxListener( tab );
- }
- }
- }
- }
- );
- }
-
- private void initTextChangeListener( final FileEditorTab tab ) {
- tab.addTextChangeListener(
- ( editor, oldValue, newValue ) -> {
- process( tab );
- scrollToParagraph( getCurrentParagraphIndex() );
- }
- );
- }
-
- /**
- * Ensure that the keyboard events are received when a new tab is added
- * to the user interface.
- *
- * @param tab The tab editor that can trigger keyboard events.
- */
- private void initTabKeyEventListener( final FileEditorTab tab ) {
- tab.addEventFilter( KeyEvent.KEY_PRESSED, mTabKeyHandler );
- }
-
- private void initScrollEventListener( final FileEditorTab tab ) {
- final var scrollPane = tab.getScrollPane();
- final var scrollBar = getPreviewPane().getVerticalScrollBar();
-
- addShowListener( scrollPane, ( __ ) -> {
- final var handler = new ScrollEventHandler( scrollPane, scrollBar );
- handler.enabledProperty().bind( tab.selectedProperty() );
- } );
- }
-
- /**
- * Listen for changes to the any particular paragraph and perform a quick
- * spell check upon it. The style classes in the editor will be changed to
- * mark any spelling mistakes in the paragraph. The user may then interact
- * with any misspelled word (i.e., any piece of text that is marked) to
- * revise the spelling.
- *
- * @param tab The tab to spellcheck.
- */
- private void initSpellCheckListener( final FileEditorTab tab ) {
- final var editor = tab.getEditorPane().getEditor();
-
- // When the editor first appears, run a full spell check. This allows
- // spell checking while typing to be restricted to the active paragraph,
- // which is usually substantially smaller than the whole document.
- addShowListener(
- editor, ( __ ) -> spellcheck( editor, editor.getText() )
- );
-
- // Use the plain text changes so that notifications of style changes
- // are suppressed. Checking against the identity ensures that only
- // new text additions or deletions trigger proofreading.
- editor.plainTextChanges()
- .filter( p -> !p.isIdentity() ).subscribe( change -> {
-
- // Only perform a spell check on the current paragraph. The
- // entire document is processed once, when opened.
- final var offset = change.getPosition();
- final var position = editor.offsetToPosition( offset, Forward );
- final var paraId = position.getMajor();
- final var paragraph = editor.getParagraph( paraId );
- final var text = paragraph.getText();
-
- // Ensure that styles aren't doubled-up.
- editor.clearStyle( paraId );
-
- spellcheck( editor, text, paraId );
- } );
- }
-
- /**
- * Listen for new tab selection events.
- */
- private void initTabChangedListener() {
- final FileEditorTabPane editorPane = getFileEditorPane();
-
- // Update the preview pane changing tabs.
- editorPane.addTabSelectionListener(
- ( tabPane, oldTab, newTab ) -> {
- if( newTab == null ) {
- // Clear the preview pane when closing an editor. When the last
- // tab is closed, this ensures that the preview pane is empty.
- getPreviewPane().clear();
- }
- else {
- final var tab = (FileEditorTab) newTab;
- updateVariableNameInjector( tab );
- process( tab );
- }
- }
- );
- }
-
- /**
- * Reloads the preferences from the previous session.
- */
- private void initPreferences() {
- initDefinitionPane();
- getFileEditorPane().initPreferences();
- getUserPreferences().addSaveEventHandler( mRPreferencesListener );
- }
-
- private void initVariableNameInjector() {
- updateVariableNameInjector( getActiveFileEditorTab() );
- }
-
- /**
- * Calls the listener when the given node is shown for the first time. The
- * visible property is not the same as the initial showing event; visibility
- * can be triggered numerous times (such as going off screen).
- * <p>
- * This is called, for example, before the drag handler can be attached,
- * because the scrollbar for the text editor pane must be visible.
- * </p>
- *
- * @param node The node to watch for showing.
- * @param consumer The consumer to invoke when the event fires.
- */
- private void addShowListener(
- final Node node, final Consumer<Void> consumer ) {
- final ChangeListener<? super Boolean> listener = ( o, oldShow, newShow ) ->
- runLater( () -> {
- if( newShow ) {
- try {
- consumer.accept( null );
- } catch( final Exception ex ) {
- alert( ex );
- }
- }
- } );
-
- Val.flatMap( node.sceneProperty(), Scene::windowProperty )
- .flatMap( Window::showingProperty )
- .addListener( listener );
- }
-
- private void scrollToParagraph( final int id ) {
- scrollToParagraph( id, false );
- }
-
- /**
- * @param id The paragraph to scroll to, will be approximated if it doesn't
- * exist.
- * @param force {@code true} means to force scrolling immediately, which
- * should only be attempted when it is known that the document
- * has been fully rendered. Otherwise the internal map of ID
- * attributes will be incomplete and scrolling will flounder.
- */
- private void scrollToParagraph( final int id, final boolean force ) {
- synchronized( mMutex ) {
- final var previewPane = getPreviewPane();
- final var scrollPane = previewPane.getScrollPane();
- final int approxId = getActiveEditorPane().approximateParagraphId( id );
-
- if( force ) {
- previewPane.scrollTo( approxId );
- }
- else {
- previewPane.tryScrollTo( approxId );
- }
-
- scrollPane.repaint();
- }
- }
-
- private void updateVariableNameInjector( final FileEditorTab tab ) {
- getVariableNameInjector().addListener( tab );
- }
-
- /**
- * Called whenever the preview pane becomes out of sync with the file editor
- * tab. This can be called when the text changes, the caret paragraph
- * changes, or the file tab changes.
- *
- * @param tab The file editor tab that has been changed in some fashion.
- */
- private void process( final FileEditorTab tab ) {
- if( tab != null ) {
- getPreviewPane().setPath( tab.getPath() );
-
- final Processor<String> processor = getProcessors().computeIfAbsent(
- tab, p -> createProcessors( tab )
- );
-
- try {
- processChain( processor, tab.getEditorText() );
- } catch( final Exception ex ) {
- alert( ex );
- }
- }
- }
-
- /**
- * Executes the processing chain, operating on the given string.
- *
- * @param handler The first processor in the chain to call.
- * @param text The initial value of the text to process.
- * @return The final value of the text that was processed by the chain.
- */
- private String processChain( Processor<String> handler, String text ) {
- while( handler != null && text != null ) {
- text = handler.apply( text );
- handler = handler.next();
- }
-
- return text;
- }
-
- private void renderActiveTab() {
- process( getActiveFileEditorTab() );
- }
-
- /**
- * Called when a definition source is opened.
- *
- * @param path Path to the definition source that was opened.
- */
- private void openDefinitions( final Path path ) {
- try {
- final var ds = createDefinitionSource( path );
- setDefinitionSource( ds );
-
- final var prefs = getUserPreferences();
- prefs.definitionPathProperty().setValue( path.toFile() );
- prefs.save();
-
- final var tooltipPath = new Tooltip( path.toString() );
- tooltipPath.setShowDelay( Duration.millis( 200 ) );
-
- final var pane = getDefinitionPane();
- pane.update( ds );
- pane.addTreeChangeHandler( mTreeHandler );
- pane.addKeyEventHandler( mDefinitionKeyHandler );
- pane.filenameProperty().setValue( path.getFileName().toString() );
- pane.setTooltip( tooltipPath );
-
- interpolateResolvedMap();
- } catch( final Exception ex ) {
- alert( ex );
- }
- }
-
- private void exportDefinitions( final Path path ) {
- try {
- final var pane = getDefinitionPane();
- final var root = pane.getTreeView().getRoot();
- final var problemChild = pane.isTreeWellFormed();
-
- if( problemChild == null ) {
- getDefinitionSource().getTreeAdapter().export( root, path );
- clearAlert();
- }
- else {
- alert( get( "yaml.error.tree.form", problemChild.getValue() ) );
- }
- } catch( final Exception ex ) {
- alert( ex );
- }
- }
-
- private void interpolateResolvedMap() {
- final var treeMap = getDefinitionPane().toMap();
- final var map = new HashMap<>( treeMap );
- MapInterpolator.interpolate( map );
-
- getResolvedMap().clear();
- getResolvedMap().putAll( map );
- }
-
- private void initDefinitionPane() {
- openDefinitions( getDefinitionPath() );
- }
-
- private static void clearAlert() {
- getNotifier().clear();
- }
-
- /**
- * Called when an exception occurs that warrants the user's attention.
- *
- * @param ex The exception with a message that the user should know about.
- */
- private static void alert( final Exception ex ) {
- getNotifier().alert( ex );
- }
-
- private static void alert( final String msg ) {
- getNotifier().alert( msg );
- }
-
- //---- File actions -------------------------------------------------------
-
- /**
- * Called when an {@link Observable} instance has changed. This is called
- * by both the {@link Snitch} service and the notify service. The @link
- * Snitch} service can be called for different file types, including
- * {@link DefinitionSource} instances.
- *
- * @param observable The observed instance.
- * @param value The noteworthy item.
- */
- @Override
- public void update( final Observable observable, final Object value ) {
- if( value != null ) {
- if( observable instanceof Snitch && value instanceof Path ) {
- updateSelectedTab();
- }
- else if( observable instanceof Notifier && value instanceof String ) {
- updateStatusBar( (String) value );
- }
- }
- }
-
- /**
- * Updates the status bar to show the given message.
- *
- * @param s The message to show in the status bar.
- */
- private void updateStatusBar( final String s ) {
- runLater(
- () -> {
- final int index = s.indexOf( '\n' );
- final String message = s.substring(
- 0, index > 0 ? index : s.length() );
-
- getStatusBar().setText( message );
- }
- );
- }
-
- /**
- * Called when a file has been modified.
- */
- private void updateSelectedTab() {
- rerender();
- }
-
- /**
- * After resetting the processors, they will refresh anew to be up-to-date
- * with the files (text and definition) currently loaded into the editor.
- */
- private void resetProcessors() {
- getProcessors().clear();
- }
-
- //---- File actions -------------------------------------------------------
-
- private void fileNew() {
- getFileEditorPane().newEditor();
- }
-
- private void fileOpen() {
- getFileEditorPane().openFileDialog();
- }
-
- private void fileClose() {
- getFileEditorPane().closeEditor( getActiveFileEditorTab(), true );
- }
-
- /**
- * TODO: Upon closing, first remove the tab change listeners. (There's no
- * need to re-render each tab when all are being closed.)
- */
- private void fileCloseAll() {
- getFileEditorPane().closeAllEditors();
- }
-
- private void fileSave() {
- getFileEditorPane().saveEditor( getActiveFileEditorTab() );
- }
-
- private void fileSaveAs() {
- final FileEditorTab editor = getActiveFileEditorTab();
- getFileEditorPane().saveEditorAs( editor );
- getProcessors().remove( editor );
-
- try {
- process( editor );
- } catch( final Exception ex ) {
- alert( ex );
- }
- }
-
- private void fileSaveAll() {
- getFileEditorPane().saveAllEditors();
- }
-
- private void fileExit() {
- final Window window = getWindow();
- fireEvent( window, new WindowEvent( window, WINDOW_CLOSE_REQUEST ) );
- }
-
- //---- Edit actions -------------------------------------------------------
-
- /**
- * Transform the Markdown into HTML then copy that HTML into the copy
- * buffer.
- */
- private void copyHtml() {
- final var markdown = getActiveEditorPane().getText();
- final var processors = createProcessorFactory().createProcessors(
- getActiveFileEditorTab()
- );
-
- final var chain = processors.remove( HtmlPreviewProcessor.class );
-
- final String html = processChain( chain, markdown );
-
- final Clipboard clipboard = Clipboard.getSystemClipboard();
- final ClipboardContent content = new ClipboardContent();
- content.putString( html );
- clipboard.setContent( content );
- }
-
- /**
- * Used to find text in the active file editor window.
- */
- private void editFind() {
- final TextField input = getFindTextField();
- getStatusBar().setGraphic( input );
- input.requestFocus();
- }
-
- public void editFindNext() {
- getActiveFileEditorTab().searchNext( getFindTextField().getText() );
- }
-
- public void editPreferences() {
- getUserPreferences().show();
- }
-
- //---- Insert actions -----------------------------------------------------
-
- /**
- * Delegates to the active editor to handle wrapping the current text
- * selection with leading and trailing strings.
- *
- * @param leading The string to put before the selection.
- * @param trailing The string to put after the selection.
- */
- private void insertMarkdown(
- final String leading, final String trailing ) {
- getActiveEditorPane().surroundSelection( leading, trailing );
- }
-
- private void insertMarkdown(
- final String leading, final String trailing, final String hint ) {
- getActiveEditorPane().surroundSelection( leading, trailing, hint );
- }
-
- //---- View actions -------------------------------------------------------
-
- private void viewRefresh() {
- rerender();
- }
-
- //---- Help actions -------------------------------------------------------
-
- private void helpAbout() {
- final Alert alert = new Alert( AlertType.INFORMATION );
- alert.setTitle( get( "Dialog.about.title" ) );
- alert.setHeaderText( get( "Dialog.about.header" ) );
- alert.setContentText( get( "Dialog.about.content" ) );
- alert.setGraphic( new ImageView( new Image( FILE_LOGO_32 ) ) );
- alert.initOwner( getWindow() );
-
- alert.showAndWait();
- }
-
- //---- Member creators ----------------------------------------------------
-
- private SpellChecker createSpellChecker() {
- try {
- final Collection<String> lexicon = readLexicon( "en.txt" );
- return SymSpellSpeller.forLexicon( lexicon );
- } catch( final Exception ex ) {
- alert( ex );
- return new PermissiveSpeller();
- }
- }
-
- /**
- * Factory to create processors that are suited to different file types.
- *
- * @param tab The tab that is subjected to processing.
- * @return A processor suited to the file type specified by the tab's path.
- */
- private Processor<String> createProcessors( final FileEditorTab tab ) {
- return createProcessorFactory().createProcessors( tab );
- }
-
- private ProcessorFactory createProcessorFactory() {
- return new ProcessorFactory( getPreviewPane(), getResolvedMap() );
- }
-
- private HTMLPreviewPane createHTMLPreviewPane() {
- return new HTMLPreviewPane();
- }
-
- private DefinitionSource createDefaultDefinitionSource() {
- return new YamlDefinitionSource( getDefinitionPath() );
- }
-
- private DefinitionSource createDefinitionSource( final Path path ) {
- try {
- return createDefinitionFactory().createDefinitionSource( path );
- } catch( final Exception ex ) {
- alert( ex );
- return createDefaultDefinitionSource();
- }
- }
-
- private TextField createFindTextField() {
- return new TextField();
- }
-
- private DefinitionFactory createDefinitionFactory() {
- return new DefinitionFactory();
- }
-
- private StatusBar createStatusBar() {
- return new StatusBar();
- }
-
- private Scene createScene() {
- final SplitPane splitPane = new SplitPane(
- getDefinitionPane(),
- getFileEditorPane(),
- getPreviewPane() );
-
- splitPane.setDividerPositions(
- getFloat( K_PANE_SPLIT_DEFINITION, .22f ),
- getFloat( K_PANE_SPLIT_EDITOR, .60f ),
- getFloat( K_PANE_SPLIT_PREVIEW, .18f ) );
-
- getDefinitionPane().prefHeightProperty()
- .bind( splitPane.heightProperty() );
-
- final BorderPane borderPane = new BorderPane();
- borderPane.setPrefSize( 1280, 800 );
- borderPane.setTop( createMenuBar() );
- borderPane.setBottom( getStatusBar() );
- borderPane.setCenter( splitPane );
-
- final VBox statusBar = new VBox();
- statusBar.setAlignment( Pos.BASELINE_CENTER );
- statusBar.getChildren().add( getLineNumberText() );
- getStatusBar().getRightItems().add( statusBar );
-
- // Force preview pane refresh on Windows.
- if( SystemUtils.IS_OS_WINDOWS ) {
- splitPane.getDividers().get( 1 ).positionProperty().addListener(
- ( l, oValue, nValue ) -> runLater(
- () -> getPreviewPane().getScrollPane().repaint()
- )
- );
- }
-
- return new Scene( borderPane );
- }
-
- private Text createLineNumberText() {
- return new Text( get( STATUS_BAR_LINE, 1, 1, 1 ) );
- }
-
- private Node createMenuBar() {
- final BooleanBinding activeFileEditorIsNull =
- getFileEditorPane().activeFileEditorProperty().isNull();
-
- // File actions
- final Action fileNewAction = new ActionBuilder()
- .setText( "Main.menu.file.new" )
- .setAccelerator( "Shortcut+N" )
- .setIcon( FILE_ALT )
- .setAction( e -> fileNew() )
- .build();
- final Action fileOpenAction = new ActionBuilder()
- .setText( "Main.menu.file.open" )
- .setAccelerator( "Shortcut+O" )
- .setIcon( FOLDER_OPEN_ALT )
- .setAction( e -> fileOpen() )
- .build();
- final Action fileCloseAction = new ActionBuilder()
- .setText( "Main.menu.file.close" )
- .setAccelerator( "Shortcut+W" )
- .setAction( e -> fileClose() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action fileCloseAllAction = new ActionBuilder()
- .setText( "Main.menu.file.close_all" )
- .setAction( e -> fileCloseAll() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action fileSaveAction = new ActionBuilder()
- .setText( "Main.menu.file.save" )
- .setAccelerator( "Shortcut+S" )
- .setIcon( FLOPPY_ALT )
- .setAction( e -> fileSave() )
- .setDisable( createActiveBooleanProperty(
- FileEditorTab::modifiedProperty ).not() )
- .build();
- final Action fileSaveAsAction = new ActionBuilder()
- .setText( "Main.menu.file.save_as" )
- .setAction( e -> fileSaveAs() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action fileSaveAllAction = new ActionBuilder()
- .setText( "Main.menu.file.save_all" )
- .setAccelerator( "Shortcut+Shift+S" )
- .setAction( e -> fileSaveAll() )
- .setDisable( Bindings.not(
- getFileEditorPane().anyFileEditorModifiedProperty() ) )
- .build();
- final Action fileExitAction = new ActionBuilder()
- .setText( "Main.menu.file.exit" )
- .setAction( e -> fileExit() )
- .build();
-
- // Edit actions
- final Action editCopyHtmlAction = new ActionBuilder()
- .setText( Messages.get( "Main.menu.edit.copy.html" ) )
- .setIcon( HTML5 )
- .setAction( e -> copyHtml() )
- .setDisable( activeFileEditorIsNull )
- .build();
-
- final Action editUndoAction = new ActionBuilder()
- .setText( "Main.menu.edit.undo" )
- .setAccelerator( "Shortcut+Z" )
- .setIcon( UNDO )
- .setAction( e -> getActiveEditorPane().undo() )
- .setDisable( createActiveBooleanProperty(
- FileEditorTab::canUndoProperty ).not() )
- .build();
- final Action editRedoAction = new ActionBuilder()
- .setText( "Main.menu.edit.redo" )
- .setAccelerator( "Shortcut+Y" )
- .setIcon( REPEAT )
- .setAction( e -> getActiveEditorPane().redo() )
- .setDisable( createActiveBooleanProperty(
- FileEditorTab::canRedoProperty ).not() )
- .build();
-
- final Action editCutAction = new ActionBuilder()
- .setText( Messages.get( "Main.menu.edit.cut" ) )
- .setAccelerator( "Shortcut+X" )
- .setIcon( CUT )
- .setAction( e -> getActiveEditorPane().cut() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action editCopyAction = new ActionBuilder()
- .setText( Messages.get( "Main.menu.edit.copy" ) )
- .setAccelerator( "Shortcut+C" )
- .setIcon( COPY )
- .setAction( e -> getActiveEditorPane().copy() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action editPasteAction = new ActionBuilder()
- .setText( Messages.get( "Main.menu.edit.paste" ) )
- .setAccelerator( "Shortcut+V" )
- .setIcon( PASTE )
- .setAction( e -> getActiveEditorPane().paste() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action editSelectAllAction = new ActionBuilder()
- .setText( Messages.get( "Main.menu.edit.selectAll" ) )
- .setAccelerator( "Shortcut+A" )
- .setAction( e -> getActiveEditorPane().selectAll() )
- .setDisable( activeFileEditorIsNull )
- .build();
-
- final Action editFindAction = new ActionBuilder()
- .setText( "Main.menu.edit.find" )
- .setAccelerator( "Ctrl+F" )
- .setIcon( SEARCH )
- .setAction( e -> editFind() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action editFindNextAction = new ActionBuilder()
- .setText( "Main.menu.edit.find.next" )
- .setAccelerator( "F3" )
- .setIcon( null )
- .setAction( e -> editFindNext() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action editPreferencesAction = new ActionBuilder()
- .setText( "Main.menu.edit.preferences" )
- .setAccelerator( "Ctrl+Alt+S" )
- .setAction( e -> editPreferences() )
- .build();
-
- // Insert actions
- final Action insertBoldAction = new ActionBuilder()
- .setText( "Main.menu.insert.bold" )
- .setAccelerator( "Shortcut+B" )
- .setIcon( BOLD )
- .setAction( e -> insertMarkdown( "**", "**" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertItalicAction = new ActionBuilder()
- .setText( "Main.menu.insert.italic" )
- .setAccelerator( "Shortcut+I" )
- .setIcon( ITALIC )
- .setAction( e -> insertMarkdown( "*", "*" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertSuperscriptAction = new ActionBuilder()
- .setText( "Main.menu.insert.superscript" )
- .setAccelerator( "Shortcut+[" )
- .setIcon( SUPERSCRIPT )
- .setAction( e -> insertMarkdown( "^", "^" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertSubscriptAction = new ActionBuilder()
- .setText( "Main.menu.insert.subscript" )
- .setAccelerator( "Shortcut+]" )
- .setIcon( SUBSCRIPT )
- .setAction( e -> insertMarkdown( "~", "~" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertStrikethroughAction = new ActionBuilder()
- .setText( "Main.menu.insert.strikethrough" )
- .setAccelerator( "Shortcut+T" )
- .setIcon( STRIKETHROUGH )
- .setAction( e -> insertMarkdown( "~~", "~~" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertBlockquoteAction = new ActionBuilder()
- .setText( "Main.menu.insert.blockquote" )
- .setAccelerator( "Ctrl+Q" )
- .setIcon( QUOTE_LEFT )
- .setAction( e -> insertMarkdown( "\n\n> ", "" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertCodeAction = new ActionBuilder()
- .setText( "Main.menu.insert.code" )
- .setAccelerator( "Shortcut+K" )
- .setIcon( CODE )
- .setAction( e -> insertMarkdown( "`", "`" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertFencedCodeBlockAction = new ActionBuilder()
- .setText( "Main.menu.insert.fenced_code_block" )
- .setAccelerator( "Shortcut+Shift+K" )
- .setIcon( FILE_CODE_ALT )
- .setAction( e -> insertMarkdown(
- "\n\n```\n",
- "\n```\n\n",
- get( "Main.menu.insert.fenced_code_block.prompt" ) ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertLinkAction = new ActionBuilder()
- .setText( "Main.menu.insert.link" )
- .setAccelerator( "Shortcut+L" )
- .setIcon( LINK )
- .setAction( e -> getActiveEditorPane().insertLink() )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertImageAction = new ActionBuilder()
- .setText( "Main.menu.insert.image" )
- .setAccelerator( "Shortcut+G" )
- .setIcon( PICTURE_ALT )
- .setAction( e -> getActiveEditorPane().insertImage() )
- .setDisable( activeFileEditorIsNull )
- .build();
-
- // Number of heading actions (H1 ... H3)
- final int HEADINGS = 3;
- final Action[] headings = new Action[ HEADINGS ];
-
- for( int i = 1; i <= HEADINGS; i++ ) {
- final String hashes = new String( new char[ i ] ).replace( "\0", "#" );
- final String markup = String.format( "%n%n%s ", hashes );
- final String text = "Main.menu.insert.heading." + i;
- final String accelerator = "Shortcut+" + i;
- final String prompt = text + ".prompt";
-
- headings[ i - 1 ] = new ActionBuilder()
- .setText( text )
- .setAccelerator( accelerator )
- .setIcon( HEADER )
- .setAction( e -> insertMarkdown( markup, "", get( prompt ) ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- }
-
- final Action insertUnorderedListAction = new ActionBuilder()
- .setText( "Main.menu.insert.unordered_list" )
- .setAccelerator( "Shortcut+U" )
- .setIcon( LIST_UL )
- .setAction( e -> insertMarkdown( "\n\n* ", "" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertOrderedListAction = new ActionBuilder()
- .setText( "Main.menu.insert.ordered_list" )
- .setAccelerator( "Shortcut+Shift+O" )
- .setIcon( LIST_OL )
- .setAction( e -> insertMarkdown(
- "\n\n1. ", "" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
- final Action insertHorizontalRuleAction = new ActionBuilder()
- .setText( "Main.menu.insert.horizontal_rule" )
- .setAccelerator( "Shortcut+H" )
- .setAction( e -> insertMarkdown(
- "\n\n---\n\n", "" ) )
- .setDisable( activeFileEditorIsNull )
- .build();
-
- // View actions
- final Action viewRefreshAction = new ActionBuilder()
- .setText( "Main.menu.view.refresh" )
- .setAccelerator( "F5" )
- .setAction( e -> viewRefresh() )
- .build();
-
- // Help actions
- final Action helpAboutAction = new ActionBuilder()
- .setText( "Main.menu.help.about" )
- .setAction( e -> helpAbout() )
- .build();
-
- //---- MenuBar ----
- final Menu fileMenu = ActionUtils.createMenu(
- get( "Main.menu.file" ),
- fileNewAction,
- fileOpenAction,
- null,
- fileCloseAction,
- fileCloseAllAction,
- null,
- fileSaveAction,
- fileSaveAsAction,
- fileSaveAllAction,
- null,
- fileExitAction );
-
- final Menu editMenu = ActionUtils.createMenu(
- get( "Main.menu.edit" ),
- editCopyHtmlAction,
- null,
- editUndoAction,
- editRedoAction,
- null,
- editCutAction,
- editCopyAction,
- editPasteAction,
- editSelectAllAction,
- null,
- editFindAction,
- editFindNextAction,
- null,
- editPreferencesAction );
-
- final Menu insertMenu = ActionUtils.createMenu(
- get( "Main.menu.insert" ),
- insertBoldAction,
- insertItalicAction,
- insertSuperscriptAction,
- insertSubscriptAction,
- insertStrikethroughAction,
- insertBlockquoteAction,
- insertCodeAction,
- insertFencedCodeBlockAction,
- null,
- insertLinkAction,
- insertImageAction,
- null,
- headings[ 0 ],
- headings[ 1 ],
- headings[ 2 ],
- null,
- insertUnorderedListAction,
- insertOrderedListAction,
- insertHorizontalRuleAction
- );
-
- final Menu viewMenu = ActionUtils.createMenu(
- get( "Main.menu.view" ),
- viewRefreshAction );
-
- final Menu helpMenu = ActionUtils.createMenu(
- get( "Main.menu.help" ),
- helpAboutAction );
-
- final MenuBar menuBar = new MenuBar(
- fileMenu,
- editMenu,
- insertMenu,
- viewMenu,
- helpMenu );
-
- //---- ToolBar ----
- final ToolBar toolBar = ActionUtils.createToolBar(
- fileNewAction,
- fileOpenAction,
- fileSaveAction,
- null,
- editUndoAction,
- editRedoAction,
- editCutAction,
- editCopyAction,
- editPasteAction,
- null,
- insertBoldAction,
- insertItalicAction,
- insertSuperscriptAction,
- insertSubscriptAction,
- insertBlockquoteAction,
- insertCodeAction,
- insertFencedCodeBlockAction,
- null,
- insertLinkAction,
- insertImageAction,
- null,
- headings[ 0 ],
- null,
- insertUnorderedListAction,
- insertOrderedListAction );
-
- return new VBox( menuBar, toolBar );
- }
-
- /**
- * Creates a boolean property that is bound to another boolean value of the
- * active editor.
- */
- private BooleanProperty createActiveBooleanProperty(
- final Function<FileEditorTab, ObservableBooleanValue> func ) {
-
- final BooleanProperty b = new SimpleBooleanProperty();
- final FileEditorTab tab = getActiveFileEditorTab();
-
- if( tab != null ) {
- b.bind( func.apply( tab ) );
- }
-
- getFileEditorPane().activeFileEditorProperty().addListener(
- ( observable, oldFileEditor, newFileEditor ) -> {
- b.unbind();
-
- if( newFileEditor == null ) {
- b.set( false );
- }
- else {
- b.bind( func.apply( newFileEditor ) );
- }
- }
- );
-
- return b;
- }
-
- //---- Convenience accessors ----------------------------------------------
-
- private Preferences getPreferences() {
- return sOptions.getState();
- }
-
- private int getCurrentParagraphIndex() {
- return getActiveEditorPane().getCurrentParagraphIndex();
- }
-
- private float getFloat( final String key, final float defaultValue ) {
- return getPreferences().getFloat( key, defaultValue );
- }
-
- public Window getWindow() {
- return getScene().getWindow();
- }
-
- private MarkdownEditorPane getActiveEditorPane() {
- return getActiveFileEditorTab().getEditorPane();
- }
-
- private FileEditorTab getActiveFileEditorTab() {
- return getFileEditorPane().getActiveFileEditor();
- }
-
- //---- Member accessors ---------------------------------------------------
-
- protected Scene getScene() {
- return mScene;
- }
-
- private SpellChecker getSpellChecker() {
- return mSpellChecker;
- }
-
- private Map<FileEditorTab, Processor<String>> getProcessors() {
- return mProcessors;
- }
-
- private FileEditorTabPane getFileEditorPane() {
- return mFileEditorPane;
- }
-
- private HTMLPreviewPane getPreviewPane() {
- return mPreviewPane;
- }
-
- private void setDefinitionSource(
- final DefinitionSource definitionSource ) {
- assert definitionSource != null;
- mDefinitionSource = definitionSource;
- }
-
- private DefinitionSource getDefinitionSource() {
- return mDefinitionSource;
- }
-
- private DefinitionPane getDefinitionPane() {
- return mDefinitionPane;
- }
-
- private Text getLineNumberText() {
- return mLineNumberText;
- }
-
- private StatusBar getStatusBar() {
- return mStatusBar;
- }
-
- private TextField getFindTextField() {
- return mFindTextField;
- }
-
- private DefinitionNameInjector getVariableNameInjector() {
- return mVariableNameInjector;
- }
-
- /**
- * Returns the variable map of interpolated definitions.
- *
- * @return A map to help dereference variables.
- */
- private Map<String, String> getResolvedMap() {
- return mResolvedMap;
- }
-
- private static Notifier getNotifier() {
- return sNotifier;
+import static com.scrivenvar.service.GlobalNotifier.*;
+import static com.scrivenvar.util.StageState.*;
+import static de.jensd.fx.glyphs.fontawesome.FontAwesomeIcon.*;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.Collections.emptyList;
+import static java.util.Collections.singleton;
+import static javafx.application.Platform.runLater;
+import static javafx.event.Event.fireEvent;
+import static javafx.scene.input.KeyCode.ENTER;
+import static javafx.scene.input.KeyCode.TAB;
+import static javafx.stage.WindowEvent.WINDOW_CLOSE_REQUEST;
+import static org.fxmisc.richtext.model.TwoDimensional.Bias.Forward;
+
+/**
+ * Main window containing a tab pane in the center for file editors.
+ */
+public class MainWindow implements Observer {
+ /**
+ * The {@code OPTIONS} variable must be declared before all other variables
+ * to prevent subsequent initializations from failing due to missing user
+ * preferences.
+ */
+ private static final Options sOptions = Services.load( Options.class );
+ private static final Snitch SNITCH = Services.load( Snitch.class );
+
+ private final Scene mScene;
+ private final StatusBar mStatusBar;
+ private final Text mLineNumberText;
+ private final TextField mFindTextField;
+ private final SpellChecker mSpellChecker;
+
+ private final Object mMutex = new Object();
+
+ /**
+ * Prevents re-instantiation of processing classes.
+ */
+ private final Map<FileEditorTab, Processor<String>> mProcessors =
+ new HashMap<>();
+
+ private final Map<String, String> mResolvedMap =
+ new HashMap<>( DEFAULT_MAP_SIZE );
+
+ private final EventHandler<PreferencesFxEvent> mRPreferencesListener =
+ event -> rerender();
+
+ /**
+ * Called when the definition data is changed.
+ */
+ private final EventHandler<TreeItem.TreeModificationEvent<Event>>
+ mTreeHandler = event -> {
+ exportDefinitions( getDefinitionPath() );
+ interpolateResolvedMap();
+ rerender();
+ };
+
+ /**
+ * Called to switch to the definition pane when the user presses the TAB key.
+ */
+ private final EventHandler<? super KeyEvent> mTabKeyHandler =
+ (EventHandler<KeyEvent>) event -> {
+ if( event.getCode() == TAB ) {
+ getDefinitionPane().requestFocus();
+ event.consume();
+ }
+ };
+
+ /**
+ * Called to inject the selected item when the user presses ENTER in the
+ * definition pane.
+ */
+ private final EventHandler<? super KeyEvent> mDefinitionKeyHandler =
+ event -> {
+ if( event.getCode() == ENTER ) {
+ getVariableNameInjector().injectSelectedItem();
+ }
+ };
+
+ private final ChangeListener<Integer> mCaretPositionListener =
+ ( observable, oldPosition, newPosition ) -> {
+ final FileEditorTab tab = getActiveFileEditorTab();
+ final EditorPane pane = tab.getEditorPane();
+ final StyleClassedTextArea editor = pane.getEditor();
+
+ getLineNumberText().setText(
+ get( STATUS_BAR_LINE,
+ editor.getCurrentParagraph() + 1,
+ editor.getParagraphs().size(),
+ editor.getCaretPosition()
+ )
+ );
+ };
+
+ private final ChangeListener<Integer> mCaretParagraphListener =
+ ( observable, oldIndex, newIndex ) ->
+ scrollToParagraph( newIndex, true );
+
+ private DefinitionSource mDefinitionSource = createDefaultDefinitionSource();
+ private final DefinitionPane mDefinitionPane = new DefinitionPane();
+ private final HTMLPreviewPane mPreviewPane = createHTMLPreviewPane();
+ private final FileEditorTabPane mFileEditorPane = new FileEditorTabPane(
+ mCaretPositionListener,
+ mCaretParagraphListener );
+
+ /**
+ * Listens on the definition pane for double-click events.
+ */
+ private final DefinitionNameInjector mVariableNameInjector
+ = new DefinitionNameInjector( mDefinitionPane );
+
+ public MainWindow() {
+ getNotifier().addObserver( this );
+
+ mStatusBar = createStatusBar();
+ mLineNumberText = createLineNumberText();
+ mFindTextField = createFindTextField();
+ mScene = createScene();
+ mSpellChecker = createSpellChecker();
+
+ // Add the close request listener before the window is shown.
+ initLayout();
+ }
+
+ /**
+ * Called after the stage is shown.
+ */
+ public void init() {
+ initFindInput();
+ initSnitch();
+ initDefinitionListener();
+ initTabAddedListener();
+ initTabChangedListener();
+ initPreferences();
+ initVariableNameInjector();
+ }
+
+ private void initLayout() {
+ final var scene = getScene();
+
+ scene.getStylesheets().add( STYLESHEET_SCENE );
+ scene.windowProperty().addListener(
+ ( unused, oldWindow, newWindow ) ->
+ newWindow.setOnCloseRequest(
+ e -> {
+ if( !getFileEditorPane().closeAllEditors() ) {
+ e.consume();
+ }
+ }
+ )
+ );
+ }
+
+ /**
+ * Initialize the find input text field to listen on F3, ENTER, and
+ * ESCAPE key presses.
+ */
+ private void initFindInput() {
+ final TextField input = getFindTextField();
+
+ input.setOnKeyPressed( ( KeyEvent event ) -> {
+ switch( event.getCode() ) {
+ case F3:
+ case ENTER:
+ editFindNext();
+ break;
+ case F:
+ if( !event.isControlDown() ) {
+ break;
+ }
+ case ESCAPE:
+ getStatusBar().setGraphic( null );
+ getActiveFileEditorTab().getEditorPane().requestFocus();
+ break;
+ }
+ } );
+
+ // Remove when the input field loses focus.
+ input.focusedProperty().addListener(
+ ( focused, oldFocus, newFocus ) -> {
+ if( !newFocus ) {
+ getStatusBar().setGraphic( null );
+ }
+ }
+ );
+ }
+
+ /**
+ * Watch for changes to external files. In particular, this awaits
+ * modifications to any XSL files associated with XML files being edited.
+ * When
+ * an XSL file is modified (external to the application), the snitch's ears
+ * perk up and the file is reloaded. This keeps the XSL transformation up to
+ * date with what's on the file system.
+ */
+ private void initSnitch() {
+ SNITCH.addObserver( this );
+ }
+
+ /**
+ * Listen for {@link FileEditorTabPane} to receive open definition file
+ * event.
+ */
+ private void initDefinitionListener() {
+ getFileEditorPane().onOpenDefinitionFileProperty().addListener(
+ ( final ObservableValue<? extends Path> file,
+ final Path oldPath, final Path newPath ) -> {
+ openDefinitions( newPath );
+ rerender();
+ }
+ );
+ }
+
+ /**
+ * Re-instantiates all processors then re-renders the active tab. This
+ * will refresh the resolved map, force R to re-initialize, and brute-force
+ * XSLT file reloads.
+ */
+ private void rerender() {
+ runLater(
+ () -> {
+ resetProcessors();
+ renderActiveTab();
+ }
+ );
+ }
+
+ /**
+ * When tabs are added, hook the various change listeners onto the new
+ * tab sothat the preview pane refreshes as necessary.
+ */
+ private void initTabAddedListener() {
+ final FileEditorTabPane editorPane = getFileEditorPane();
+
+ // Make sure the text processor kicks off when new files are opened.
+ final ObservableList<Tab> tabs = editorPane.getTabs();
+
+ // Update the preview pane on tab changes.
+ tabs.addListener(
+ ( final Change<? extends Tab> change ) -> {
+ while( change.next() ) {
+ if( change.wasAdded() ) {
+ // Multiple tabs can be added simultaneously.
+ for( final Tab newTab : change.getAddedSubList() ) {
+ final FileEditorTab tab = (FileEditorTab) newTab;
+
+ initTextChangeListener( tab );
+ initTabKeyEventListener( tab );
+ initScrollEventListener( tab );
+ initSpellCheckListener( tab );
+// initSyntaxListener( tab );
+ }
+ }
+ }
+ }
+ );
+ }
+
+ private void initTextChangeListener( final FileEditorTab tab ) {
+ tab.addTextChangeListener(
+ ( editor, oldValue, newValue ) -> {
+ process( tab );
+ scrollToParagraph( getCurrentParagraphIndex() );
+ }
+ );
+ }
+
+ /**
+ * Ensure that the keyboard events are received when a new tab is added
+ * to the user interface.
+ *
+ * @param tab The tab editor that can trigger keyboard events.
+ */
+ private void initTabKeyEventListener( final FileEditorTab tab ) {
+ tab.addEventFilter( KeyEvent.KEY_PRESSED, mTabKeyHandler );
+ }
+
+ private void initScrollEventListener( final FileEditorTab tab ) {
+ final var scrollPane = tab.getScrollPane();
+ final var scrollBar = getPreviewPane().getVerticalScrollBar();
+
+ addShowListener( scrollPane, ( __ ) -> {
+ final var handler = new ScrollEventHandler( scrollPane, scrollBar );
+ handler.enabledProperty().bind( tab.selectedProperty() );
+ } );
+ }
+
+ /**
+ * Listen for changes to the any particular paragraph and perform a quick
+ * spell check upon it. The style classes in the editor will be changed to
+ * mark any spelling mistakes in the paragraph. The user may then interact
+ * with any misspelled word (i.e., any piece of text that is marked) to
+ * revise the spelling.
+ *
+ * @param tab The tab to spellcheck.
+ */
+ private void initSpellCheckListener( final FileEditorTab tab ) {
+ final var editor = tab.getEditorPane().getEditor();
+
+ // When the editor first appears, run a full spell check. This allows
+ // spell checking while typing to be restricted to the active paragraph,
+ // which is usually substantially smaller than the whole document.
+ addShowListener(
+ editor, ( __ ) -> spellcheck( editor, editor.getText() )
+ );
+
+ // Use the plain text changes so that notifications of style changes
+ // are suppressed. Checking against the identity ensures that only
+ // new text additions or deletions trigger proofreading.
+ editor.plainTextChanges()
+ .filter( p -> !p.isIdentity() ).subscribe( change -> {
+
+ // Only perform a spell check on the current paragraph. The
+ // entire document is processed once, when opened.
+ final var offset = change.getPosition();
+ final var position = editor.offsetToPosition( offset, Forward );
+ final var paraId = position.getMajor();
+ final var paragraph = editor.getParagraph( paraId );
+ final var text = paragraph.getText();
+
+ // Ensure that styles aren't doubled-up.
+ editor.clearStyle( paraId );
+
+ spellcheck( editor, text, paraId );
+ } );
+ }
+
+ /**
+ * Listen for new tab selection events.
+ */
+ private void initTabChangedListener() {
+ final FileEditorTabPane editorPane = getFileEditorPane();
+
+ // Update the preview pane changing tabs.
+ editorPane.addTabSelectionListener(
+ ( tabPane, oldTab, newTab ) -> {
+ if( newTab == null ) {
+ // Clear the preview pane when closing an editor. When the last
+ // tab is closed, this ensures that the preview pane is empty.
+ getPreviewPane().clear();
+ }
+ else {
+ final var tab = (FileEditorTab) newTab;
+ updateVariableNameInjector( tab );
+ process( tab );
+ }
+ }
+ );
+ }
+
+ /**
+ * Reloads the preferences from the previous session.
+ */
+ private void initPreferences() {
+ initDefinitionPane();
+ getFileEditorPane().initPreferences();
+ getUserPreferences().addSaveEventHandler( mRPreferencesListener );
+ }
+
+ private void initVariableNameInjector() {
+ updateVariableNameInjector( getActiveFileEditorTab() );
+ }
+
+ /**
+ * Calls the listener when the given node is shown for the first time. The
+ * visible property is not the same as the initial showing event; visibility
+ * can be triggered numerous times (such as going off screen).
+ * <p>
+ * This is called, for example, before the drag handler can be attached,
+ * because the scrollbar for the text editor pane must be visible.
+ * </p>
+ *
+ * @param node The node to watch for showing.
+ * @param consumer The consumer to invoke when the event fires.
+ */
+ private void addShowListener(
+ final Node node, final Consumer<Void> consumer ) {
+ final ChangeListener<? super Boolean> listener = ( o, oldShow, newShow ) ->
+ runLater( () -> {
+ if( newShow ) {
+ try {
+ consumer.accept( null );
+ } catch( final Exception ex ) {
+ alert( ex );
+ }
+ }
+ } );
+
+ Val.flatMap( node.sceneProperty(), Scene::windowProperty )
+ .flatMap( Window::showingProperty )
+ .addListener( listener );
+ }
+
+ private void scrollToParagraph( final int id ) {
+ scrollToParagraph( id, false );
+ }
+
+ /**
+ * @param id The paragraph to scroll to, will be approximated if it doesn't
+ * exist.
+ * @param force {@code true} means to force scrolling immediately, which
+ * should only be attempted when it is known that the document
+ * has been fully rendered. Otherwise the internal map of ID
+ * attributes will be incomplete and scrolling will flounder.
+ */
+ private void scrollToParagraph( final int id, final boolean force ) {
+ synchronized( mMutex ) {
+ final var previewPane = getPreviewPane();
+ final var scrollPane = previewPane.getScrollPane();
+ final int approxId = getActiveEditorPane().approximateParagraphId( id );
+
+ if( force ) {
+ previewPane.scrollTo( approxId );
+ }
+ else {
+ previewPane.tryScrollTo( approxId );
+ }
+
+ scrollPane.repaint();
+ }
+ }
+
+ private void updateVariableNameInjector( final FileEditorTab tab ) {
+ getVariableNameInjector().addListener( tab );
+ }
+
+ /**
+ * Called whenever the preview pane becomes out of sync with the file editor
+ * tab. This can be called when the text changes, the caret paragraph
+ * changes, or the file tab changes.
+ *
+ * @param tab The file editor tab that has been changed in some fashion.
+ */
+ private void process( final FileEditorTab tab ) {
+ if( tab != null ) {
+ getPreviewPane().setPath( tab.getPath() );
+
+ final Processor<String> processor = getProcessors().computeIfAbsent(
+ tab, p -> createProcessors( tab )
+ );
+
+ try {
+ processChain( processor, tab.getEditorText() );
+ } catch( final Exception ex ) {
+ alert( ex );
+ }
+ }
+ }
+
+ /**
+ * Executes the processing chain, operating on the given string.
+ *
+ * @param handler The first processor in the chain to call.
+ * @param text The initial value of the text to process.
+ * @return The final value of the text that was processed by the chain.
+ */
+ private String processChain( Processor<String> handler, String text ) {
+ while( handler != null && text != null ) {
+ text = handler.apply( text );
+ handler = handler.next();
+ }
+
+ return text;
+ }
+
+ private void renderActiveTab() {
+ process( getActiveFileEditorTab() );
+ }
+
+ /**
+ * Called when a definition source is opened.
+ *
+ * @param path Path to the definition source that was opened.
+ */
+ private void openDefinitions( final Path path ) {
+ try {
+ final var ds = createDefinitionSource( path );
+ setDefinitionSource( ds );
+
+ final var prefs = getUserPreferences();
+ prefs.definitionPathProperty().setValue( path.toFile() );
+ prefs.save();
+
+ final var tooltipPath = new Tooltip( path.toString() );
+ tooltipPath.setShowDelay( Duration.millis( 200 ) );
+
+ final var pane = getDefinitionPane();
+ pane.update( ds );
+ pane.addTreeChangeHandler( mTreeHandler );
+ pane.addKeyEventHandler( mDefinitionKeyHandler );
+ pane.filenameProperty().setValue( path.getFileName().toString() );
+ pane.setTooltip( tooltipPath );
+
+ interpolateResolvedMap();
+ } catch( final Exception ex ) {
+ alert( ex );
+ }
+ }
+
+ private void exportDefinitions( final Path path ) {
+ try {
+ final var pane = getDefinitionPane();
+ final var root = pane.getTreeView().getRoot();
+ final var problemChild = pane.isTreeWellFormed();
+
+ if( problemChild == null ) {
+ getDefinitionSource().getTreeAdapter().export( root, path );
+ clearAlert();
+ }
+ else {
+ alert( get( "yaml.error.tree.form", problemChild.getValue() ) );
+ }
+ } catch( final Exception ex ) {
+ alert( ex );
+ }
+ }
+
+ private void interpolateResolvedMap() {
+ final var treeMap = getDefinitionPane().toMap();
+ final var map = new HashMap<>( treeMap );
+ MapInterpolator.interpolate( map );
+
+ getResolvedMap().clear();
+ getResolvedMap().putAll( map );
+ }
+
+ private void initDefinitionPane() {
+ openDefinitions( getDefinitionPath() );
+ }
+
+ //---- File actions -------------------------------------------------------
+
+ /**
+ * Called when an {@link Observable} instance has changed. This is called
+ * by both the {@link Snitch} service and the notify service. The @link
+ * Snitch} service can be called for different file types, including
+ * {@link DefinitionSource} instances.
+ *
+ * @param observable The observed instance.
+ * @param value The noteworthy item.
+ */
+ @Override
+ public void update( final Observable observable, final Object value ) {
+ if( value != null ) {
+ if( observable instanceof Snitch && value instanceof Path ) {
+ updateSelectedTab();
+ }
+ else if( observable instanceof Notifier && value instanceof String ) {
+ updateStatusBar( (String) value );
+ }
+ }
+ }
+
+ /**
+ * Updates the status bar to show the given message.
+ *
+ * @param s The message to show in the status bar.
+ */
+ private void updateStatusBar( final String s ) {
+ runLater(
+ () -> {
+ final int index = s.indexOf( '\n' );
+ final String message = s.substring(
+ 0, index > 0 ? index : s.length() );
+
+ getStatusBar().setText( message );
+ }
+ );
+ }
+
+ /**
+ * Called when a file has been modified.
+ */
+ private void updateSelectedTab() {
+ rerender();
+ }
+
+ /**
+ * After resetting the processors, they will refresh anew to be up-to-date
+ * with the files (text and definition) currently loaded into the editor.
+ */
+ private void resetProcessors() {
+ getProcessors().clear();
+ }
+
+ //---- File actions -------------------------------------------------------
+
+ private void fileNew() {
+ getFileEditorPane().newEditor();
+ }
+
+ private void fileOpen() {
+ getFileEditorPane().openFileDialog();
+ }
+
+ private void fileClose() {
+ getFileEditorPane().closeEditor( getActiveFileEditorTab(), true );
+ }
+
+ /**
+ * TODO: Upon closing, first remove the tab change listeners. (There's no
+ * need to re-render each tab when all are being closed.)
+ */
+ private void fileCloseAll() {
+ getFileEditorPane().closeAllEditors();
+ }
+
+ private void fileSave() {
+ getFileEditorPane().saveEditor( getActiveFileEditorTab() );
+ }
+
+ private void fileSaveAs() {
+ final FileEditorTab editor = getActiveFileEditorTab();
+ getFileEditorPane().saveEditorAs( editor );
+ getProcessors().remove( editor );
+
+ try {
+ process( editor );
+ } catch( final Exception ex ) {
+ alert( ex );
+ }
+ }
+
+ private void fileSaveAll() {
+ getFileEditorPane().saveAllEditors();
+ }
+
+ private void fileExit() {
+ final Window window = getWindow();
+ fireEvent( window, new WindowEvent( window, WINDOW_CLOSE_REQUEST ) );
+ }
+
+ //---- Edit actions -------------------------------------------------------
+
+ /**
+ * Transform the Markdown into HTML then copy that HTML into the copy
+ * buffer.
+ */
+ private void copyHtml() {
+ final var markdown = getActiveEditorPane().getText();
+ final var processors = createProcessorFactory().createProcessors(
+ getActiveFileEditorTab()
+ );
+
+ final var chain = processors.remove( HtmlPreviewProcessor.class );
+
+ final String html = processChain( chain, markdown );
+
+ final Clipboard clipboard = Clipboard.getSystemClipboard();
+ final ClipboardContent content = new ClipboardContent();
+ content.putString( html );
+ clipboard.setContent( content );
+ }
+
+ /**
+ * Used to find text in the active file editor window.
+ */
+ private void editFind() {
+ final TextField input = getFindTextField();
+ getStatusBar().setGraphic( input );
+ input.requestFocus();
+ }
+
+ public void editFindNext() {
+ getActiveFileEditorTab().searchNext( getFindTextField().getText() );
+ }
+
+ public void editPreferences() {
+ getUserPreferences().show();
+ }
+
+ //---- Insert actions -----------------------------------------------------
+
+ /**
+ * Delegates to the active editor to handle wrapping the current text
+ * selection with leading and trailing strings.
+ *
+ * @param leading The string to put before the selection.
+ * @param trailing The string to put after the selection.
+ */
+ private void insertMarkdown(
+ final String leading, final String trailing ) {
+ getActiveEditorPane().surroundSelection( leading, trailing );
+ }
+
+ private void insertMarkdown(
+ final String leading, final String trailing, final String hint ) {
+ getActiveEditorPane().surroundSelection( leading, trailing, hint );
+ }
+
+ //---- View actions -------------------------------------------------------
+
+ private void viewRefresh() {
+ rerender();
+ }
+
+ //---- Help actions -------------------------------------------------------
+
+ private void helpAbout() {
+ final Alert alert = new Alert( AlertType.INFORMATION );
+ alert.setTitle( get( "Dialog.about.title" ) );
+ alert.setHeaderText( get( "Dialog.about.header" ) );
+ alert.setContentText( get( "Dialog.about.content" ) );
+ alert.setGraphic( new ImageView( new Image( FILE_LOGO_32 ) ) );
+ alert.initOwner( getWindow() );
+
+ alert.showAndWait();
+ }
+
+ //---- Member creators ----------------------------------------------------
+
+ private SpellChecker createSpellChecker() {
+ try {
+ final Collection<String> lexicon = readLexicon( "en.txt" );
+ return SymSpellSpeller.forLexicon( lexicon );
+ } catch( final Exception ex ) {
+ alert( ex );
+ return new PermissiveSpeller();
+ }
+ }
+
+ /**
+ * Factory to create processors that are suited to different file types.
+ *
+ * @param tab The tab that is subjected to processing.
+ * @return A processor suited to the file type specified by the tab's path.
+ */
+ private Processor<String> createProcessors( final FileEditorTab tab ) {
+ return createProcessorFactory().createProcessors( tab );
+ }
+
+ private ProcessorFactory createProcessorFactory() {
+ return new ProcessorFactory( getPreviewPane(), getResolvedMap() );
+ }
+
+ private HTMLPreviewPane createHTMLPreviewPane() {
+ return new HTMLPreviewPane();
+ }
+
+ private DefinitionSource createDefaultDefinitionSource() {
+ return new YamlDefinitionSource( getDefinitionPath() );
+ }
+
+ private DefinitionSource createDefinitionSource( final Path path ) {
+ try {
+ return createDefinitionFactory().createDefinitionSource( path );
+ } catch( final Exception ex ) {
+ alert( ex );
+ return createDefaultDefinitionSource();
+ }
+ }
+
+ private TextField createFindTextField() {
+ return new TextField();
+ }
+
+ private DefinitionFactory createDefinitionFactory() {
+ return new DefinitionFactory();
+ }
+
+ private StatusBar createStatusBar() {
+ return new StatusBar();
+ }
+
+ private Scene createScene() {
+ final SplitPane splitPane = new SplitPane(
+ getDefinitionPane(),
+ getFileEditorPane(),
+ getPreviewPane() );
+
+ splitPane.setDividerPositions(
+ getFloat( K_PANE_SPLIT_DEFINITION, .22f ),
+ getFloat( K_PANE_SPLIT_EDITOR, .60f ),
+ getFloat( K_PANE_SPLIT_PREVIEW, .18f ) );
+
+ getDefinitionPane().prefHeightProperty()
+ .bind( splitPane.heightProperty() );
+
+ final BorderPane borderPane = new BorderPane();
+ borderPane.setPrefSize( 1280, 800 );
+ borderPane.setTop( createMenuBar() );
+ borderPane.setBottom( getStatusBar() );
+ borderPane.setCenter( splitPane );
+
+ final VBox statusBar = new VBox();
+ statusBar.setAlignment( Pos.BASELINE_CENTER );
+ statusBar.getChildren().add( getLineNumberText() );
+ getStatusBar().getRightItems().add( statusBar );
+
+ // Force preview pane refresh on Windows.
+ if( SystemUtils.IS_OS_WINDOWS ) {
+ splitPane.getDividers().get( 1 ).positionProperty().addListener(
+ ( l, oValue, nValue ) -> runLater(
+ () -> getPreviewPane().getScrollPane().repaint()
+ )
+ );
+ }
+
+ return new Scene( borderPane );
+ }
+
+ private Text createLineNumberText() {
+ return new Text( get( STATUS_BAR_LINE, 1, 1, 1 ) );
+ }
+
+ private Node createMenuBar() {
+ final BooleanBinding activeFileEditorIsNull =
+ getFileEditorPane().activeFileEditorProperty().isNull();
+
+ // File actions
+ final Action fileNewAction = new ActionBuilder()
+ .setText( "Main.menu.file.new" )
+ .setAccelerator( "Shortcut+N" )
+ .setIcon( FILE_ALT )
+ .setAction( e -> fileNew() )
+ .build();
+ final Action fileOpenAction = new ActionBuilder()
+ .setText( "Main.menu.file.open" )
+ .setAccelerator( "Shortcut+O" )
+ .setIcon( FOLDER_OPEN_ALT )
+ .setAction( e -> fileOpen() )
+ .build();
+ final Action fileCloseAction = new ActionBuilder()
+ .setText( "Main.menu.file.close" )
+ .setAccelerator( "Shortcut+W" )
+ .setAction( e -> fileClose() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action fileCloseAllAction = new ActionBuilder()
+ .setText( "Main.menu.file.close_all" )
+ .setAction( e -> fileCloseAll() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action fileSaveAction = new ActionBuilder()
+ .setText( "Main.menu.file.save" )
+ .setAccelerator( "Shortcut+S" )
+ .setIcon( FLOPPY_ALT )
+ .setAction( e -> fileSave() )
+ .setDisable( createActiveBooleanProperty(
+ FileEditorTab::modifiedProperty ).not() )
+ .build();
+ final Action fileSaveAsAction = new ActionBuilder()
+ .setText( "Main.menu.file.save_as" )
+ .setAction( e -> fileSaveAs() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action fileSaveAllAction = new ActionBuilder()
+ .setText( "Main.menu.file.save_all" )
+ .setAccelerator( "Shortcut+Shift+S" )
+ .setAction( e -> fileSaveAll() )
+ .setDisable( Bindings.not(
+ getFileEditorPane().anyFileEditorModifiedProperty() ) )
+ .build();
+ final Action fileExitAction = new ActionBuilder()
+ .setText( "Main.menu.file.exit" )
+ .setAction( e -> fileExit() )
+ .build();
+
+ // Edit actions
+ final Action editCopyHtmlAction = new ActionBuilder()
+ .setText( Messages.get( "Main.menu.edit.copy.html" ) )
+ .setIcon( HTML5 )
+ .setAction( e -> copyHtml() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+
+ final Action editUndoAction = new ActionBuilder()
+ .setText( "Main.menu.edit.undo" )
+ .setAccelerator( "Shortcut+Z" )
+ .setIcon( UNDO )
+ .setAction( e -> getActiveEditorPane().undo() )
+ .setDisable( createActiveBooleanProperty(
+ FileEditorTab::canUndoProperty ).not() )
+ .build();
+ final Action editRedoAction = new ActionBuilder()
+ .setText( "Main.menu.edit.redo" )
+ .setAccelerator( "Shortcut+Y" )
+ .setIcon( REPEAT )
+ .setAction( e -> getActiveEditorPane().redo() )
+ .setDisable( createActiveBooleanProperty(
+ FileEditorTab::canRedoProperty ).not() )
+ .build();
+
+ final Action editCutAction = new ActionBuilder()
+ .setText( Messages.get( "Main.menu.edit.cut" ) )
+ .setAccelerator( "Shortcut+X" )
+ .setIcon( CUT )
+ .setAction( e -> getActiveEditorPane().cut() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action editCopyAction = new ActionBuilder()
+ .setText( Messages.get( "Main.menu.edit.copy" ) )
+ .setAccelerator( "Shortcut+C" )
+ .setIcon( COPY )
+ .setAction( e -> getActiveEditorPane().copy() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action editPasteAction = new ActionBuilder()
+ .setText( Messages.get( "Main.menu.edit.paste" ) )
+ .setAccelerator( "Shortcut+V" )
+ .setIcon( PASTE )
+ .setAction( e -> getActiveEditorPane().paste() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action editSelectAllAction = new ActionBuilder()
+ .setText( Messages.get( "Main.menu.edit.selectAll" ) )
+ .setAccelerator( "Shortcut+A" )
+ .setAction( e -> getActiveEditorPane().selectAll() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+
+ final Action editFindAction = new ActionBuilder()
+ .setText( "Main.menu.edit.find" )
+ .setAccelerator( "Ctrl+F" )
+ .setIcon( SEARCH )
+ .setAction( e -> editFind() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action editFindNextAction = new ActionBuilder()
+ .setText( "Main.menu.edit.find.next" )
+ .setAccelerator( "F3" )
+ .setIcon( null )
+ .setAction( e -> editFindNext() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action editPreferencesAction = new ActionBuilder()
+ .setText( "Main.menu.edit.preferences" )
+ .setAccelerator( "Ctrl+Alt+S" )
+ .setAction( e -> editPreferences() )
+ .build();
+
+ // Insert actions
+ final Action insertBoldAction = new ActionBuilder()
+ .setText( "Main.menu.insert.bold" )
+ .setAccelerator( "Shortcut+B" )
+ .setIcon( BOLD )
+ .setAction( e -> insertMarkdown( "**", "**" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertItalicAction = new ActionBuilder()
+ .setText( "Main.menu.insert.italic" )
+ .setAccelerator( "Shortcut+I" )
+ .setIcon( ITALIC )
+ .setAction( e -> insertMarkdown( "*", "*" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertSuperscriptAction = new ActionBuilder()
+ .setText( "Main.menu.insert.superscript" )
+ .setAccelerator( "Shortcut+[" )
+ .setIcon( SUPERSCRIPT )
+ .setAction( e -> insertMarkdown( "^", "^" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertSubscriptAction = new ActionBuilder()
+ .setText( "Main.menu.insert.subscript" )
+ .setAccelerator( "Shortcut+]" )
+ .setIcon( SUBSCRIPT )
+ .setAction( e -> insertMarkdown( "~", "~" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertStrikethroughAction = new ActionBuilder()
+ .setText( "Main.menu.insert.strikethrough" )
+ .setAccelerator( "Shortcut+T" )
+ .setIcon( STRIKETHROUGH )
+ .setAction( e -> insertMarkdown( "~~", "~~" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertBlockquoteAction = new ActionBuilder()
+ .setText( "Main.menu.insert.blockquote" )
+ .setAccelerator( "Ctrl+Q" )
+ .setIcon( QUOTE_LEFT )
+ .setAction( e -> insertMarkdown( "\n\n> ", "" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertCodeAction = new ActionBuilder()
+ .setText( "Main.menu.insert.code" )
+ .setAccelerator( "Shortcut+K" )
+ .setIcon( CODE )
+ .setAction( e -> insertMarkdown( "`", "`" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertFencedCodeBlockAction = new ActionBuilder()
+ .setText( "Main.menu.insert.fenced_code_block" )
+ .setAccelerator( "Shortcut+Shift+K" )
+ .setIcon( FILE_CODE_ALT )
+ .setAction( e -> insertMarkdown(
+ "\n\n```\n",
+ "\n```\n\n",
+ get( "Main.menu.insert.fenced_code_block.prompt" ) ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertLinkAction = new ActionBuilder()
+ .setText( "Main.menu.insert.link" )
+ .setAccelerator( "Shortcut+L" )
+ .setIcon( LINK )
+ .setAction( e -> getActiveEditorPane().insertLink() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertImageAction = new ActionBuilder()
+ .setText( "Main.menu.insert.image" )
+ .setAccelerator( "Shortcut+G" )
+ .setIcon( PICTURE_ALT )
+ .setAction( e -> getActiveEditorPane().insertImage() )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+
+ // Number of heading actions (H1 ... H3)
+ final int HEADINGS = 3;
+ final Action[] headings = new Action[ HEADINGS ];
+
+ for( int i = 1; i <= HEADINGS; i++ ) {
+ final String hashes = new String( new char[ i ] ).replace( "\0", "#" );
+ final String markup = String.format( "%n%n%s ", hashes );
+ final String text = "Main.menu.insert.heading." + i;
+ final String accelerator = "Shortcut+" + i;
+ final String prompt = text + ".prompt";
+
+ headings[ i - 1 ] = new ActionBuilder()
+ .setText( text )
+ .setAccelerator( accelerator )
+ .setIcon( HEADER )
+ .setAction( e -> insertMarkdown( markup, "", get( prompt ) ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ }
+
+ final Action insertUnorderedListAction = new ActionBuilder()
+ .setText( "Main.menu.insert.unordered_list" )
+ .setAccelerator( "Shortcut+U" )
+ .setIcon( LIST_UL )
+ .setAction( e -> insertMarkdown( "\n\n* ", "" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertOrderedListAction = new ActionBuilder()
+ .setText( "Main.menu.insert.ordered_list" )
+ .setAccelerator( "Shortcut+Shift+O" )
+ .setIcon( LIST_OL )
+ .setAction( e -> insertMarkdown(
+ "\n\n1. ", "" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+ final Action insertHorizontalRuleAction = new ActionBuilder()
+ .setText( "Main.menu.insert.horizontal_rule" )
+ .setAccelerator( "Shortcut+H" )
+ .setAction( e -> insertMarkdown(
+ "\n\n---\n\n", "" ) )
+ .setDisable( activeFileEditorIsNull )
+ .build();
+
+ // View actions
+ final Action viewRefreshAction = new ActionBuilder()
+ .setText( "Main.menu.view.refresh" )
+ .setAccelerator( "F5" )
+ .setAction( e -> viewRefresh() )
+ .build();
+
+ // Help actions
+ final Action helpAboutAction = new ActionBuilder()
+ .setText( "Main.menu.help.about" )
+ .setAction( e -> helpAbout() )
+ .build();
+
+ //---- MenuBar ----
+ final Menu fileMenu = ActionUtils.createMenu(
+ get( "Main.menu.file" ),
+ fileNewAction,
+ fileOpenAction,
+ null,
+ fileCloseAction,
+ fileCloseAllAction,
+ null,
+ fileSaveAction,
+ fileSaveAsAction,
+ fileSaveAllAction,
+ null,
+ fileExitAction );
+
+ final Menu editMenu = ActionUtils.createMenu(
+ get( "Main.menu.edit" ),
+ editCopyHtmlAction,
+ null,
+ editUndoAction,
+ editRedoAction,
+ null,
+ editCutAction,
+ editCopyAction,
+ editPasteAction,
+ editSelectAllAction,
+ null,
+ editFindAction,
+ editFindNextAction,
+ null,
+ editPreferencesAction );
+
+ final Menu insertMenu = ActionUtils.createMenu(
+ get( "Main.menu.insert" ),
+ insertBoldAction,
+ insertItalicAction,
+ insertSuperscriptAction,
+ insertSubscriptAction,
+ insertStrikethroughAction,
+ insertBlockquoteAction,
+ insertCodeAction,
+ insertFencedCodeBlockAction,
+ null,
+ insertLinkAction,
+ insertImageAction,
+ null,
+ headings[ 0 ],
+ headings[ 1 ],
+ headings[ 2 ],
+ null,
+ insertUnorderedListAction,
+ insertOrderedListAction,
+ insertHorizontalRuleAction
+ );
+
+ final Menu viewMenu = ActionUtils.createMenu(
+ get( "Main.menu.view" ),
+ viewRefreshAction );
+
+ final Menu helpMenu = ActionUtils.createMenu(
+ get( "Main.menu.help" ),
+ helpAboutAction );
+
+ final MenuBar menuBar = new MenuBar(
+ fileMenu,
+ editMenu,
+ insertMenu,
+ viewMenu,
+ helpMenu );
+
+ //---- ToolBar ----
+ final ToolBar toolBar = ActionUtils.createToolBar(
+ fileNewAction,
+ fileOpenAction,
+ fileSaveAction,
+ null,
+ editUndoAction,
+ editRedoAction,
+ editCutAction,
+ editCopyAction,
+ editPasteAction,
+ null,
+ insertBoldAction,
+ insertItalicAction,
+ insertSuperscriptAction,
+ insertSubscriptAction,
+ insertBlockquoteAction,
+ insertCodeAction,
+ insertFencedCodeBlockAction,
+ null,
+ insertLinkAction,
+ insertImageAction,
+ null,
+ headings[ 0 ],
+ null,
+ insertUnorderedListAction,
+ insertOrderedListAction );
+
+ return new VBox( menuBar, toolBar );
+ }
+
+ /**
+ * Creates a boolean property that is bound to another boolean value of the
+ * active editor.
+ */
+ private BooleanProperty createActiveBooleanProperty(
+ final Function<FileEditorTab, ObservableBooleanValue> func ) {
+
+ final BooleanProperty b = new SimpleBooleanProperty();
+ final FileEditorTab tab = getActiveFileEditorTab();
+
+ if( tab != null ) {
+ b.bind( func.apply( tab ) );
+ }
+
+ getFileEditorPane().activeFileEditorProperty().addListener(
+ ( observable, oldFileEditor, newFileEditor ) -> {
+ b.unbind();
+
+ if( newFileEditor == null ) {
+ b.set( false );
+ }
+ else {
+ b.bind( func.apply( newFileEditor ) );
+ }
+ }
+ );
+
+ return b;
+ }
+
+ //---- Convenience accessors ----------------------------------------------
+
+ private Preferences getPreferences() {
+ return sOptions.getState();
+ }
+
+ private int getCurrentParagraphIndex() {
+ return getActiveEditorPane().getCurrentParagraphIndex();
+ }
+
+ private float getFloat( final String key, final float defaultValue ) {
+ return getPreferences().getFloat( key, defaultValue );
+ }
+
+ public Window getWindow() {
+ return getScene().getWindow();
+ }
+
+ private MarkdownEditorPane getActiveEditorPane() {
+ return getActiveFileEditorTab().getEditorPane();
+ }
+
+ private FileEditorTab getActiveFileEditorTab() {
+ return getFileEditorPane().getActiveFileEditor();
+ }
+
+ //---- Member accessors ---------------------------------------------------
+
+ protected Scene getScene() {
+ return mScene;
+ }
+
+ private SpellChecker getSpellChecker() {
+ return mSpellChecker;
+ }
+
+ private Map<FileEditorTab, Processor<String>> getProcessors() {
+ return mProcessors;
+ }
+
+ private FileEditorTabPane getFileEditorPane() {
+ return mFileEditorPane;
+ }
+
+ private HTMLPreviewPane getPreviewPane() {
+ return mPreviewPane;
+ }
+
+ private void setDefinitionSource(
+ final DefinitionSource definitionSource ) {
+ assert definitionSource != null;
+ mDefinitionSource = definitionSource;
+ }
+
+ private DefinitionSource getDefinitionSource() {
+ return mDefinitionSource;
+ }
+
+ private DefinitionPane getDefinitionPane() {
+ return mDefinitionPane;
+ }
+
+ private Text getLineNumberText() {
+ return mLineNumberText;
+ }
+
+ private StatusBar getStatusBar() {
+ return mStatusBar;
+ }
+
+ private TextField getFindTextField() {
+ return mFindTextField;
+ }
+
+ private DefinitionNameInjector getVariableNameInjector() {
+ return mVariableNameInjector;
+ }
+
+ /**
+ * Returns the variable map of interpolated definitions.
+ *
+ * @return A map to help dereference variables.
+ */
+ private Map<String, String> getResolvedMap() {
+ return mResolvedMap;
}