| | import javafx.beans.property.*; |
| | import javafx.collections.ListChangeListener; |
| | -import javafx.event.ActionEvent; |
| | -import javafx.event.Event; |
| | -import javafx.event.EventHandler; |
| | -import javafx.scene.Node; |
| | -import javafx.scene.Scene; |
| | -import javafx.scene.control.SplitPane; |
| | -import javafx.scene.control.Tab; |
| | -import javafx.scene.control.TabPane; |
| | -import javafx.scene.control.Tooltip; |
| | -import javafx.scene.control.TreeItem.TreeModificationEvent; |
| | -import javafx.scene.input.KeyEvent; |
| | -import javafx.stage.Stage; |
| | -import javafx.stage.Window; |
| | -import org.greenrobot.eventbus.Subscribe; |
| | - |
| | -import java.io.File; |
| | -import java.io.FileNotFoundException; |
| | -import java.nio.file.Path; |
| | -import java.util.*; |
| | -import java.util.concurrent.atomic.AtomicBoolean; |
| | -import java.util.function.Function; |
| | -import java.util.stream.Collectors; |
| | - |
| | -import static com.keenwrite.constants.Constants.*; |
| | -import static com.keenwrite.ExportFormat.NONE; |
| | -import static com.keenwrite.Messages.get; |
| | -import static com.keenwrite.events.Bus.register; |
| | -import static com.keenwrite.events.StatusEvent.clue; |
| | -import static com.keenwrite.io.MediaType.*; |
| | -import static com.keenwrite.preferences.WorkspaceKeys.*; |
| | -import static com.keenwrite.processors.IdentityProcessor.IDENTITY; |
| | -import static com.keenwrite.processors.ProcessorFactory.createProcessors; |
| | -import static java.util.stream.Collectors.groupingBy; |
| | -import static javafx.application.Platform.runLater; |
| | -import static javafx.scene.control.ButtonType.NO; |
| | -import static javafx.scene.control.ButtonType.YES; |
| | -import static javafx.scene.control.TabPane.TabClosingPolicy.ALL_TABS; |
| | -import static javafx.scene.input.KeyCode.SPACE; |
| | -import static javafx.scene.input.KeyCombination.CONTROL_DOWN; |
| | -import static javafx.util.Duration.millis; |
| | -import static javax.swing.SwingUtilities.invokeLater; |
| | -import static org.fxmisc.wellbehaved.event.EventPattern.keyPressed; |
| | - |
| | -/** |
| | - * Responsible for wiring together the main application components for a |
| | - * particular workspace (project). These include the definition views, |
| | - * text editors, and preview pane along with any corresponding controllers. |
| | - */ |
| | -public final class MainPane extends SplitPane { |
| | - private static final Notifier sNotifier = Services.load( Notifier.class ); |
| | - |
| | - /** |
| | - * Used when opening files to determine how each file should be binned and |
| | - * therefore what tab pane to be opened within. |
| | - */ |
| | - private static final Set<MediaType> PLAIN_TEXT_FORMAT = Set.of( |
| | - TEXT_MARKDOWN, TEXT_R_MARKDOWN, TEXT_R_XML, UNDEFINED |
| | - ); |
| | - |
| | - /** |
| | - * Prevents re-instantiation of processing classes. |
| | - */ |
| | - private final Map<TextResource, Processor<String>> mProcessors = |
| | - new HashMap<>(); |
| | - |
| | - private final Workspace mWorkspace; |
| | - |
| | - /** |
| | - * Groups similar file type tabs together. |
| | - */ |
| | - private final Map<MediaType, TabPane> mTabPanes = new HashMap<>(); |
| | - |
| | - /** |
| | - * Stores definition names and values. |
| | - */ |
| | - private final Map<String, String> mResolvedMap = |
| | - new HashMap<>( MAP_SIZE_DEFAULT ); |
| | - |
| | - /** |
| | - * Renders the actively selected plain text editor tab. |
| | - */ |
| | - private final HtmlPreview mPreview; |
| | - |
| | - /** |
| | - * Provides an interactive document outline. |
| | - */ |
| | - private final DocumentOutline mOutline = new DocumentOutline(); |
| | - |
| | - /** |
| | - * Changing the active editor fires the value changed event. This allows |
| | - * refreshes to happen when external definitions are modified and need to |
| | - * trigger the processing chain. |
| | - */ |
| | - private final ObjectProperty<TextEditor> mActiveTextEditor = |
| | - createActiveTextEditor(); |
| | - |
| | - /** |
| | - * Changing the active definition editor fires the value changed event. This |
| | - * allows refreshes to happen when external definitions are modified and need |
| | - * to trigger the processing chain. |
| | - */ |
| | - private final ObjectProperty<TextDefinition> mActiveDefinitionEditor = |
| | - createActiveDefinitionEditor( mActiveTextEditor ); |
| | - |
| | - /** |
| | - * Tracks the number of detached tab panels opened into their own windows, |
| | - * which allows unique identification of subordinate windows by their title. |
| | - * It is doubtful more than 128 windows, much less 256, will be created. |
| | - */ |
| | - private byte mWindowCount; |
| | - |
| | - /** |
| | - * Called when the definition data is changed. |
| | - */ |
| | - private final EventHandler<TreeModificationEvent<Event>> mTreeHandler = |
| | - event -> { |
| | - final var editor = mActiveDefinitionEditor.get(); |
| | - |
| | - resolve( editor ); |
| | - process( getActiveTextEditor() ); |
| | - save( editor ); |
| | - }; |
| | - |
| | - private final DocumentStatistics mStatistics; |
| | - |
| | - /** |
| | - * Adds all content panels to the main user interface. This will load the |
| | - * configuration settings from the workspace to reproduce the settings from |
| | - * a previous session. |
| | - */ |
| | - public MainPane( final Workspace workspace ) { |
| | - mWorkspace = workspace; |
| | - mPreview = new HtmlPreview( workspace ); |
| | - mStatistics = new DocumentStatistics( workspace ); |
| | - |
| | - open( bin( getRecentFiles() ) ); |
| | - viewPreview(); |
| | - setDividerPositions( calculateDividerPositions() ); |
| | - |
| | - // Once the main scene's window regains focus, update the active definition |
| | - // editor to the currently selected tab. |
| | - runLater( |
| | - () -> getWindow().setOnCloseRequest( ( event ) -> { |
| | - // Order matters here. We want to close all the tabs to ensure each |
| | - // is saved, but after they are closed, the workspace should still |
| | - // retain the list of files that were open. If this line came after |
| | - // closing, then restarting the application would list no files. |
| | - mWorkspace.save(); |
| | - |
| | - if( closeAll() ) { |
| | - Platform.exit(); |
| | - System.exit( 0 ); |
| | - } |
| | - else { |
| | - event.consume(); |
| | - } |
| | - } ) |
| | - ); |
| | - |
| | - register( this ); |
| | - } |
| | - |
| | - @Subscribe |
| | - public void handle( final TextEditorFocusEvent event ) { |
| | - mActiveTextEditor.set( event.get() ); |
| | - } |
| | - |
| | - @Subscribe |
| | - public void handle( final TextDefinitionFocusEvent event ) { |
| | - mActiveDefinitionEditor.set( event.get() ); |
| | - } |
| | - |
| | - /** |
| | - * Typically called when a file name is clicked in the {@link HtmlPanel}. |
| | - * |
| | - * @param event The event to process, must contain a valid file reference. |
| | - */ |
| | - @Subscribe |
| | - public void handle( final FileOpenEvent event ) { |
| | - final File eventFile; |
| | - final var eventUri = event.getUri(); |
| | - |
| | - if( eventUri.isAbsolute() ) { |
| | - eventFile = new File( eventUri.getPath() ); |
| | - } |
| | - else { |
| | - final var activeFile = getActiveTextEditor().getFile(); |
| | - final var parent = activeFile.getParentFile(); |
| | - |
| | - if( parent == null ) { |
| | - clue( new FileNotFoundException( eventUri.getPath() ) ); |
| | - return; |
| | - } |
| | - else { |
| | - final var parentPath = parent.getAbsolutePath(); |
| | - eventFile = Path.of( parentPath, eventUri.getPath() ).toFile(); |
| | - } |
| | - } |
| | - |
| | - runLater( () -> open( eventFile ) ); |
| | - } |
| | - |
| | - @Subscribe |
| | - public void handle( final CaretNavigationEvent event ) { |
| | - runLater( () -> { |
| | - final var textArea = getActiveTextEditor().getTextArea(); |
| | - textArea.moveTo( event.getOffset() ); |
| | - textArea.requestFollowCaret(); |
| | - textArea.requestFocus(); |
| | - } ); |
| | - } |
| | - |
| | - /** |
| | - * TODO: Load divider positions from exported settings, see bin() comment. |
| | - */ |
| | - private double[] calculateDividerPositions() { |
| | - final var ratio = 100f / getItems().size() / 100; |
| | - final var positions = getDividerPositions(); |
| | - |
| | - for( int i = 0; i < positions.length; i++ ) { |
| | - positions[ i ] = ratio * i; |
| | - } |
| | - |
| | - return positions; |
| | - } |
| | - |
| | - /** |
| | - * Opens all the files into the application, provided the paths are unique. |
| | - * This may only be called for any type of files that a user can edit |
| | - * (i.e., update and persist), such as definitions and text files. |
| | - * |
| | - * @param files The list of files to open. |
| | - */ |
| | - public void open( final List<File> files ) { |
| | - files.forEach( this::open ); |
| | - } |
| | - |
| | - /** |
| | - * This opens the given file. Since the preview pane is not a file that |
| | - * can be opened, it is safe to add a listener to the detachable pane. |
| | - * |
| | - * @param file The file to open. |
| | - */ |
| | - private void open( final File file ) { |
| | - final var tab = createTab( file ); |
| | - final var node = tab.getContent(); |
| | - final var mediaType = MediaType.valueFrom( file ); |
| | - final var tabPane = obtainTabPane( mediaType ); |
| | - |
| | - tab.setTooltip( createTooltip( file ) ); |
| | - tabPane.setFocusTraversable( false ); |
| | - tabPane.setTabClosingPolicy( ALL_TABS ); |
| | - tabPane.getTabs().add( tab ); |
| | - |
| | - // Attach the tab scene factory for new tab panes. |
| | - if( !getItems().contains( tabPane ) ) { |
| | - addTabPane( |
| | - node instanceof TextDefinition ? 0 : getItems().size(), tabPane |
| | - ); |
| | - } |
| | - |
| | - getRecentFiles().add( file.getAbsolutePath() ); |
| | - } |
| | - |
| | - /** |
| | - * Opens a new text editor document using the default document file name. |
| | - */ |
| | - public void newTextEditor() { |
| | - open( DOCUMENT_DEFAULT ); |
| | - } |
| | - |
| | - /** |
| | - * Opens a new definition editor document using the default definition |
| | - * file name. |
| | - */ |
| | - public void newDefinitionEditor() { |
| | - open( DEFINITION_DEFAULT ); |
| | - } |
| | - |
| | - /** |
| | - * Iterates over all tab panes to find all {@link TextEditor}s and request |
| | - * that they save themselves. |
| | - */ |
| | - public void saveAll() { |
| | - mTabPanes.forEach( |
| | - ( mt, tp ) -> tp.getTabs().forEach( ( tab ) -> { |
| | - final var node = tab.getContent(); |
| | - if( node instanceof TextEditor ) { |
| | - save( ((TextEditor) node) ); |
| | - } |
| | - } ) |
| | - ); |
| | - } |
| | - |
| | - /** |
| | - * Requests that the active {@link TextEditor} saves itself. Don't bother |
| | - * checking if modified first because if the user swaps external media from |
| | - * an external source (e.g., USB thumb drive), save should not second-guess |
| | - * the user: save always re-saves. Also, it's less code. |
| | - */ |
| | - public void save() { |
| | - save( getActiveTextEditor() ); |
| | - } |
| | - |
| | - /** |
| | - * Saves the active {@link TextEditor} under a new name. |
| | - * |
| | - * @param file The new active editor {@link File} reference. |
| | - */ |
| | - public void saveAs( final File file ) { |
| | - assert file != null; |
| | - final var editor = getActiveTextEditor(); |
| | - final var tab = getTab( editor ); |
| | - |
| | - editor.rename( file ); |
| | - tab.ifPresent( t -> { |
| | - t.setText( editor.getFilename() ); |
| | - t.setTooltip( createTooltip( file ) ); |
| | - } ); |
| | - |
| | - save(); |
| | - } |
| | - |
| | - /** |
| | - * Saves the given {@link TextResource} to a file. This is typically used |
| | - * to save either an instance of {@link TextEditor} or {@link TextDefinition}. |
| | - * |
| | - * @param resource The resource to export. |
| | - */ |
| | - private void save( final TextResource resource ) { |
| | - try { |
| | - resource.save(); |
| | - } catch( final Exception ex ) { |
| | - clue( ex ); |
| | - sNotifier.alert( |
| | - getWindow(), resource.getPath(), "TextResource.saveFailed", ex |
| | - ); |
| | - } |
| | - } |
| | - |
| | - /** |
| | - * Closes all open {@link TextEditor}s; all {@link TextDefinition}s stay open. |
| | - * |
| | - * @return {@code true} when all editors, modified or otherwise, were |
| | - * permitted to close; {@code false} when one or more editors were modified |
| | - * and the user requested no closing. |
| | - */ |
| | - public boolean closeAll() { |
| | - var closable = true; |
| | - |
| | - for( final var entry : mTabPanes.entrySet() ) { |
| | - final var tabPane = entry.getValue(); |
| | - final var tabIterator = tabPane.getTabs().iterator(); |
| | - |
| | - while( tabIterator.hasNext() ) { |
| | - final var tab = tabIterator.next(); |
| | - final var resource = tab.getContent(); |
| | - |
| | - // The definition panes auto-save, so being specific here prevents |
| | - // closing the definitions in the situation where the user wants to |
| | - // continue editing (i.e., possibly save unsaved work). |
| | - if( !(resource instanceof TextEditor) ) { |
| | - continue; |
| | - } |
| | - |
| | - if( canClose( (TextEditor) resource ) ) { |
| | - tabIterator.remove(); |
| | - close( tab ); |
| | - } |
| | - else { |
| | - closable = false; |
| | - } |
| | - } |
| | - } |
| | - |
| | - return closable; |
| | - } |
| | - |
| | - /** |
| | - * Calls the tab's {@link Tab#getOnClosed()} handler to carry out a close |
| | - * event. |
| | - * |
| | - * @param tab The {@link Tab} that was closed. |
| | - */ |
| | - private void close( final Tab tab ) { |
| | - final var handler = tab.getOnClosed(); |
| | - |
| | - if( handler != null ) { |
| | - handler.handle( new ActionEvent() ); |
| | - } |
| | - } |
| | - |
| | - /** |
| | - * Closes the active tab; delegates to {@link #canClose(TextResource)}. |
| | - */ |
| | - public void close() { |
| | - final var editor = getActiveTextEditor(); |
| | - |
| | - if( canClose( editor ) ) { |
| | - close( editor ); |
| | - } |
| | - } |
| | - |
| | - /** |
| | - * Closes the given {@link TextResource}. This must not be called from within |
| | - * a loop that iterates over the tab panes using {@code forEach}, lest a |
| | - * concurrent modification exception be thrown. |
| | - * |
| | - * @param resource The {@link TextResource} to close, without confirming with |
| | - * the user. |
| | - */ |
| | - private void close( final TextResource resource ) { |
| | - getTab( resource ).ifPresent( |
| | - ( tab ) -> { |
| | - tab.getTabPane().getTabs().remove( tab ); |
| | - close( tab ); |
| | - } |
| | - ); |
| | - } |
| | - |
| | - /** |
| | - * Answers whether the given {@link TextResource} may be closed. |
| | - * |
| | - * @param editor The {@link TextResource} to try closing. |
| | - * @return {@code true} when the editor may be closed; {@code false} when |
| | - * the user has requested to keep the editor open. |
| | - */ |
| | - private boolean canClose( final TextResource editor ) { |
| | - final var editorTab = getTab( editor ); |
| | - final var canClose = new AtomicBoolean( true ); |
| | - |
| | - if( editor.isModified() ) { |
| | - final var filename = new StringBuilder(); |
| | - editorTab.ifPresent( ( tab ) -> filename.append( tab.getText() ) ); |
| | - |
| | - final var message = sNotifier.createNotification( |
| | - Messages.get( "Alert.file.close.title" ), |
| | - Messages.get( "Alert.file.close.text" ), |
| | - filename.toString() |
| | - ); |
| | - |
| | - final var dialog = sNotifier.createConfirmation( getWindow(), message ); |
| | - |
| | - dialog.showAndWait().ifPresent( |
| | - save -> canClose.set( save == YES ? editor.save() : save == NO ) |
| | - ); |
| | - } |
| | - |
| | - return canClose.get(); |
| | - } |
| | - |
| | - private ObjectProperty<TextEditor> createActiveTextEditor() { |
| | - final var editor = new SimpleObjectProperty<TextEditor>(); |
| | - |
| | - editor.addListener( ( c, o, n ) -> { |
| | - if( n != null ) { |
| | - mPreview.setBaseUri( n.getPath() ); |
| | - process( n ); |
| | - } |
| | - } ); |
| | - |
| | - return editor; |
| | - } |
| | - |
| | - /** |
| | - * Adds the HTML preview tab to its own, singular tab pane. |
| | - */ |
| | - public void viewPreview() { |
| | - viewTab( mPreview, TEXT_HTML, "Pane.preview.title" ); |
| | - } |
| | - |
| | - /** |
| | - * Adds the document outline tab to its own, singular tab pane. |
| | - */ |
| | - public void viewOutline() { |
| | - viewTab( mOutline, APP_DOCUMENT_OUTLINE, "Pane.outline.title" ); |
| | - } |
| | - |
| | - public void viewStatistics() { |
| | - viewTab( mStatistics, APP_DOCUMENT_STATISTICS, "Pane.statistics.title" ); |
| | - } |
| | - |
| | - public void viewFiles() { |
| | - try { |
| | - final var fileManager = new FilesView( mWorkspace ); |
| | - viewTab( fileManager, APP_FILE_MANAGER, "Pane.files.title" ); |
| | - } catch( final Exception ex ) { |
| | - clue( ex ); |
| | - } |
| | - } |
| | - |
| | - private void viewTab( |
| | - final Node node, final MediaType mediaType, final String key ) { |
| | - final var tabPane = obtainTabPane( mediaType ); |
| | - |
| | - for( final var tab : tabPane.getTabs() ) { |
| | - if( tab.getContent() == node ) { |
| | - return; |
| | - } |
| | - } |
| | - |
| | - tabPane.getTabs().add( createTab( get( key ), node ) ); |
| | - addTabPane( tabPane ); |
| | - } |
| | - |
| | - public void viewRefresh() { |
| | - mPreview.refresh(); |
| | - } |
| | - |
| | - /** |
| | - * Returns the tab that contains the given {@link TextEditor}. |
| | - * |
| | - * @param editor The {@link TextEditor} instance to find amongst the tabs. |
| | - * @return The first tab having content that matches the given tab. |
| | - */ |
| | - private Optional<Tab> getTab( final TextResource editor ) { |
| | - return mTabPanes.values() |
| | - .stream() |
| | - .flatMap( pane -> pane.getTabs().stream() ) |
| | - .filter( tab -> editor.equals( tab.getContent() ) ) |
| | - .findFirst(); |
| | - } |
| | - |
| | - /** |
| | - * Creates a new {@link DefinitionEditor} wrapped in a listener that |
| | - * is used to detect when the active {@link DefinitionEditor} has changed. |
| | - * Upon changing, the {@link #mResolvedMap} is updated and the active |
| | - * text editor is refreshed. |
| | - * |
| | - * @param editor Text editor to update with the revised resolved map. |
| | - * @return A newly configured property that represents the active |
| | - * {@link DefinitionEditor}, never null. |
| | - */ |
| | - private ObjectProperty<TextDefinition> createActiveDefinitionEditor( |
| | - final ObjectProperty<TextEditor> editor ) { |
| | - final var definitions = new SimpleObjectProperty<TextDefinition>(); |
| | - definitions.addListener( ( c, o, n ) -> { |
| | - resolve( n == null ? createDefinitionEditor() : n ); |
| | - process( editor.get() ); |
| | - } ); |
| | - |
| | - return definitions; |
| | - } |
| | - |
| | - private Tab createTab( final String filename, final Node node ) { |
| | - return new DetachableTab( filename, node ); |
| | - } |
| | - |
| | - private Tab createTab( final File file ) { |
| | - final var r = createTextResource( file ); |
| | - final var tab = createTab( r.getFilename(), r.getNode() ); |
| | - |
| | - r.modifiedProperty().addListener( |
| | - ( c, o, n ) -> tab.setText( r.getFilename() + (n ? "*" : "") ) |
| | - ); |
| | - |
| | - // This is called when either the tab is closed by the user clicking on |
| | - // the tab's close icon or when closing (all) from the file menu. |
| | - tab.setOnClosed( |
| | - ( __ ) -> getRecentFiles().remove( file.getAbsolutePath() ) |
| | - ); |
| | - |
| | - tab.tabPaneProperty().addListener( ( cPane, oPane, nPane ) -> { |
| | - if( nPane != null ) { |
| | - nPane.focusedProperty().addListener( ( c, o, n ) -> { |
| | - if( n != null && n ) { |
| | - final var selected = nPane.getSelectionModel().getSelectedItem(); |
| | - final var node = selected.getContent(); |
| | - node.requestFocus(); |
| | - } |
| | - } ); |
| | - } |
| | - } ); |
| | - |
| | - return tab; |
| | - } |
| | - |
| | - /** |
| | - * Creates bins for the different {@link MediaType}s, which eventually are |
| | - * added to the UI as separate tab panes. If ever a general-purpose scene |
| | - * exporter is developed to serialize a scene to an FXML file, this could |
| | - * be replaced by such a class. |
| | - * <p> |
| | - * When binning the files, this makes sure that at least one file exists |
| | - * for every type. If the user has opted to close a particular type (such |
| | - * as the definition pane), the view will suppressed elsewhere. |
| | - * </p> |
| | - * <p> |
| | - * The order that the binned files are returned will be reflected in the |
| | - * order that the corresponding panes are rendered in the UI. |
| | - * </p> |
| | - * |
| | - * @param paths The file paths to bin according to their type. |
| | - * @return An in-order list of files, first by structured definition files, |
| | - * then by plain text documents. |
| | - */ |
| | - private List<File> bin( final SetProperty<String> paths ) { |
| | - // Treat all files destined for the text editor as plain text documents |
| | - // so that they are added to the same pane. Grouping by TEXT_PLAIN is a |
| | - // bit arbitrary, but means explicitly capturing TEXT_PLAIN isn't needed. |
| | - final Function<MediaType, MediaType> bin = |
| | - m -> PLAIN_TEXT_FORMAT.contains( m ) ? TEXT_PLAIN : m; |
| | - |
| | - // Create two groups: YAML files and plain text files. |
| | - final var bins = paths |
| | - .stream() |
| | - .collect( |
| | - groupingBy( path -> bin.apply( MediaType.fromFilename( path ) ) ) |
| | - ); |
| | - |
| | - bins.putIfAbsent( TEXT_YAML, List.of( DEFINITION_DEFAULT.toString() ) ); |
| | - bins.putIfAbsent( TEXT_PLAIN, List.of( DOCUMENT_DEFAULT.toString() ) ); |
| | - |
| | - final var result = new ArrayList<File>( paths.size() ); |
| | - |
| | - // Ensure that the same types are listed together (keep insertion order). |
| | - bins.forEach( ( mediaType, files ) -> result.addAll( |
| | - files.stream().map( File::new ).collect( Collectors.toList() ) ) |
| | - ); |
| | - |
| | - return result; |
| | - } |
| | - |
| | - /** |
| | - * Uses the given {@link TextDefinition} instance to update the |
| | - * {@link #mResolvedMap}. |
| | - * |
| | - * @param editor A non-null, possibly empty definition editor. |
| | - */ |
| | - private void resolve( final TextDefinition editor ) { |
| | - assert editor != null; |
| | - |
| | - final var tokens = createDefinitionTokens(); |
| | - final var operator = new YamlSigilOperator( tokens ); |
| | - final var map = new HashMap<String, String>(); |
| | - |
| | - editor.toMap().forEach( ( k, v ) -> map.put( operator.entoken( k ), v ) ); |
| | - |
| | - mResolvedMap.clear(); |
| | - mResolvedMap.putAll( editor.interpolate( map, tokens ) ); |
| | - } |
| | - |
| | - /** |
| | - * Force the active editor to update, which will cause the processor |
| | - * to re-evaluate the interpolated definition map thereby updating the |
| | - * preview pane. |
| | - * |
| | - * @param editor Contains the source document to update in the preview pane. |
| | - */ |
| | - private void process( final TextEditor editor ) { |
| | - // Ensure that these are run from within the Swing event dispatch thread |
| | - // so that the text editor thread is immediately freed for caret movement. |
| | - // This means that the preview will have a slight delay when catching up |
| | - // to the caret position. |
| | - invokeLater( () -> { |
| | - final var processor = mProcessors.getOrDefault( editor, IDENTITY ); |
| | - processor.apply( editor == null ? "" : editor.getText() ); |
| | - mPreview.scrollTo( CARET_ID ); |
| | - } ); |
| | +import javafx.concurrent.Task; |
| | +import javafx.event.ActionEvent; |
| | +import javafx.event.Event; |
| | +import javafx.event.EventHandler; |
| | +import javafx.scene.Node; |
| | +import javafx.scene.Scene; |
| | +import javafx.scene.control.SplitPane; |
| | +import javafx.scene.control.Tab; |
| | +import javafx.scene.control.TabPane; |
| | +import javafx.scene.control.Tooltip; |
| | +import javafx.scene.control.TreeItem.TreeModificationEvent; |
| | +import javafx.scene.input.KeyEvent; |
| | +import javafx.stage.Stage; |
| | +import javafx.stage.Window; |
| | +import org.greenrobot.eventbus.Subscribe; |
| | + |
| | +import java.io.File; |
| | +import java.io.FileNotFoundException; |
| | +import java.nio.file.Path; |
| | +import java.util.*; |
| | +import java.util.concurrent.ExecutorService; |
| | +import java.util.concurrent.atomic.AtomicBoolean; |
| | +import java.util.function.Function; |
| | +import java.util.stream.Collectors; |
| | + |
| | +import static com.keenwrite.ExportFormat.NONE; |
| | +import static com.keenwrite.Messages.get; |
| | +import static com.keenwrite.constants.Constants.*; |
| | +import static com.keenwrite.events.Bus.register; |
| | +import static com.keenwrite.events.StatusEvent.clue; |
| | +import static com.keenwrite.io.MediaType.*; |
| | +import static com.keenwrite.preferences.WorkspaceKeys.*; |
| | +import static com.keenwrite.processors.IdentityProcessor.IDENTITY; |
| | +import static com.keenwrite.processors.ProcessorFactory.createProcessors; |
| | +import static java.util.concurrent.Executors.newFixedThreadPool; |
| | +import static java.util.stream.Collectors.groupingBy; |
| | +import static javafx.application.Platform.runLater; |
| | +import static javafx.scene.control.ButtonType.NO; |
| | +import static javafx.scene.control.ButtonType.YES; |
| | +import static javafx.scene.control.TabPane.TabClosingPolicy.ALL_TABS; |
| | +import static javafx.scene.input.KeyCode.SPACE; |
| | +import static javafx.scene.input.KeyCombination.CONTROL_DOWN; |
| | +import static javafx.util.Duration.millis; |
| | +import static javax.swing.SwingUtilities.invokeLater; |
| | +import static org.fxmisc.wellbehaved.event.EventPattern.keyPressed; |
| | + |
| | +/** |
| | + * Responsible for wiring together the main application components for a |
| | + * particular workspace (project). These include the definition views, |
| | + * text editors, and preview pane along with any corresponding controllers. |
| | + */ |
| | +public final class MainPane extends SplitPane { |
| | + private static final ExecutorService sExecutor = newFixedThreadPool( 1 ); |
| | + |
| | + private static final Notifier sNotifier = Services.load( Notifier.class ); |
| | + |
| | + /** |
| | + * Used when opening files to determine how each file should be binned and |
| | + * therefore what tab pane to be opened within. |
| | + */ |
| | + private static final Set<MediaType> PLAIN_TEXT_FORMAT = Set.of( |
| | + TEXT_MARKDOWN, TEXT_R_MARKDOWN, TEXT_R_XML, UNDEFINED |
| | + ); |
| | + |
| | + /** |
| | + * Prevents re-instantiation of processing classes. |
| | + */ |
| | + private final Map<TextResource, Processor<String>> mProcessors = |
| | + new HashMap<>(); |
| | + |
| | + private final Workspace mWorkspace; |
| | + |
| | + /** |
| | + * Groups similar file type tabs together. |
| | + */ |
| | + private final Map<MediaType, TabPane> mTabPanes = new HashMap<>(); |
| | + |
| | + /** |
| | + * Stores definition names and values. |
| | + */ |
| | + private final Map<String, String> mResolvedMap = |
| | + new HashMap<>( MAP_SIZE_DEFAULT ); |
| | + |
| | + /** |
| | + * Renders the actively selected plain text editor tab. |
| | + */ |
| | + private final HtmlPreview mPreview; |
| | + |
| | + /** |
| | + * Provides an interactive document outline. |
| | + */ |
| | + private final DocumentOutline mOutline = new DocumentOutline(); |
| | + |
| | + /** |
| | + * Changing the active editor fires the value changed event. This allows |
| | + * refreshes to happen when external definitions are modified and need to |
| | + * trigger the processing chain. |
| | + */ |
| | + private final ObjectProperty<TextEditor> mActiveTextEditor = |
| | + createActiveTextEditor(); |
| | + |
| | + /** |
| | + * Changing the active definition editor fires the value changed event. This |
| | + * allows refreshes to happen when external definitions are modified and need |
| | + * to trigger the processing chain. |
| | + */ |
| | + private final ObjectProperty<TextDefinition> mActiveDefinitionEditor = |
| | + createActiveDefinitionEditor( mActiveTextEditor ); |
| | + |
| | + /** |
| | + * Tracks the number of detached tab panels opened into their own windows, |
| | + * which allows unique identification of subordinate windows by their title. |
| | + * It is doubtful more than 128 windows, much less 256, will be created. |
| | + */ |
| | + private byte mWindowCount; |
| | + |
| | + /** |
| | + * Called when the definition data is changed. |
| | + */ |
| | + private final EventHandler<TreeModificationEvent<Event>> mTreeHandler = |
| | + event -> { |
| | + final var editor = mActiveDefinitionEditor.get(); |
| | + |
| | + resolve( editor ); |
| | + process( getActiveTextEditor() ); |
| | + save( editor ); |
| | + }; |
| | + |
| | + private final DocumentStatistics mStatistics; |
| | + |
| | + /** |
| | + * Adds all content panels to the main user interface. This will load the |
| | + * configuration settings from the workspace to reproduce the settings from |
| | + * a previous session. |
| | + */ |
| | + public MainPane( final Workspace workspace ) { |
| | + mWorkspace = workspace; |
| | + mPreview = new HtmlPreview( workspace ); |
| | + mStatistics = new DocumentStatistics( workspace ); |
| | + |
| | + open( bin( getRecentFiles() ) ); |
| | + viewPreview(); |
| | + setDividerPositions( calculateDividerPositions() ); |
| | + |
| | + // Once the main scene's window regains focus, update the active definition |
| | + // editor to the currently selected tab. |
| | + runLater( |
| | + () -> getWindow().setOnCloseRequest( ( event ) -> { |
| | + // Order matters here. We want to close all the tabs to ensure each |
| | + // is saved, but after they are closed, the workspace should still |
| | + // retain the list of files that were open. If this line came after |
| | + // closing, then restarting the application would list no files. |
| | + mWorkspace.save(); |
| | + |
| | + if( closeAll() ) { |
| | + Platform.exit(); |
| | + System.exit( 0 ); |
| | + } |
| | + else { |
| | + event.consume(); |
| | + } |
| | + } ) |
| | + ); |
| | + |
| | + register( this ); |
| | + } |
| | + |
| | + @Subscribe |
| | + public void handle( final TextEditorFocusEvent event ) { |
| | + mActiveTextEditor.set( event.get() ); |
| | + } |
| | + |
| | + @Subscribe |
| | + public void handle( final TextDefinitionFocusEvent event ) { |
| | + mActiveDefinitionEditor.set( event.get() ); |
| | + } |
| | + |
| | + /** |
| | + * Typically called when a file name is clicked in the {@link HtmlPanel}. |
| | + * |
| | + * @param event The event to process, must contain a valid file reference. |
| | + */ |
| | + @Subscribe |
| | + public void handle( final FileOpenEvent event ) { |
| | + final File eventFile; |
| | + final var eventUri = event.getUri(); |
| | + |
| | + if( eventUri.isAbsolute() ) { |
| | + eventFile = new File( eventUri.getPath() ); |
| | + } |
| | + else { |
| | + final var activeFile = getActiveTextEditor().getFile(); |
| | + final var parent = activeFile.getParentFile(); |
| | + |
| | + if( parent == null ) { |
| | + clue( new FileNotFoundException( eventUri.getPath() ) ); |
| | + return; |
| | + } |
| | + else { |
| | + final var parentPath = parent.getAbsolutePath(); |
| | + eventFile = Path.of( parentPath, eventUri.getPath() ).toFile(); |
| | + } |
| | + } |
| | + |
| | + runLater( () -> open( eventFile ) ); |
| | + } |
| | + |
| | + @Subscribe |
| | + public void handle( final CaretNavigationEvent event ) { |
| | + runLater( () -> { |
| | + final var textArea = getActiveTextEditor().getTextArea(); |
| | + textArea.moveTo( event.getOffset() ); |
| | + textArea.requestFollowCaret(); |
| | + textArea.requestFocus(); |
| | + } ); |
| | + } |
| | + |
| | + /** |
| | + * TODO: Load divider positions from exported settings, see bin() comment. |
| | + */ |
| | + private double[] calculateDividerPositions() { |
| | + final var ratio = 100f / getItems().size() / 100; |
| | + final var positions = getDividerPositions(); |
| | + |
| | + for( int i = 0; i < positions.length; i++ ) { |
| | + positions[ i ] = ratio * i; |
| | + } |
| | + |
| | + return positions; |
| | + } |
| | + |
| | + /** |
| | + * Opens all the files into the application, provided the paths are unique. |
| | + * This may only be called for any type of files that a user can edit |
| | + * (i.e., update and persist), such as definitions and text files. |
| | + * |
| | + * @param files The list of files to open. |
| | + */ |
| | + public void open( final List<File> files ) { |
| | + files.forEach( this::open ); |
| | + } |
| | + |
| | + /** |
| | + * This opens the given file. Since the preview pane is not a file that |
| | + * can be opened, it is safe to add a listener to the detachable pane. |
| | + * |
| | + * @param file The file to open. |
| | + */ |
| | + private void open( final File file ) { |
| | + final var tab = createTab( file ); |
| | + final var node = tab.getContent(); |
| | + final var mediaType = MediaType.valueFrom( file ); |
| | + final var tabPane = obtainTabPane( mediaType ); |
| | + |
| | + tab.setTooltip( createTooltip( file ) ); |
| | + tabPane.setFocusTraversable( false ); |
| | + tabPane.setTabClosingPolicy( ALL_TABS ); |
| | + tabPane.getTabs().add( tab ); |
| | + |
| | + // Attach the tab scene factory for new tab panes. |
| | + if( !getItems().contains( tabPane ) ) { |
| | + addTabPane( |
| | + node instanceof TextDefinition ? 0 : getItems().size(), tabPane |
| | + ); |
| | + } |
| | + |
| | + getRecentFiles().add( file.getAbsolutePath() ); |
| | + } |
| | + |
| | + /** |
| | + * Opens a new text editor document using the default document file name. |
| | + */ |
| | + public void newTextEditor() { |
| | + open( DOCUMENT_DEFAULT ); |
| | + } |
| | + |
| | + /** |
| | + * Opens a new definition editor document using the default definition |
| | + * file name. |
| | + */ |
| | + public void newDefinitionEditor() { |
| | + open( DEFINITION_DEFAULT ); |
| | + } |
| | + |
| | + /** |
| | + * Iterates over all tab panes to find all {@link TextEditor}s and request |
| | + * that they save themselves. |
| | + */ |
| | + public void saveAll() { |
| | + mTabPanes.forEach( |
| | + ( mt, tp ) -> tp.getTabs().forEach( ( tab ) -> { |
| | + final var node = tab.getContent(); |
| | + if( node instanceof TextEditor ) { |
| | + save( ((TextEditor) node) ); |
| | + } |
| | + } ) |
| | + ); |
| | + } |
| | + |
| | + /** |
| | + * Requests that the active {@link TextEditor} saves itself. Don't bother |
| | + * checking if modified first because if the user swaps external media from |
| | + * an external source (e.g., USB thumb drive), save should not second-guess |
| | + * the user: save always re-saves. Also, it's less code. |
| | + */ |
| | + public void save() { |
| | + save( getActiveTextEditor() ); |
| | + } |
| | + |
| | + /** |
| | + * Saves the active {@link TextEditor} under a new name. |
| | + * |
| | + * @param file The new active editor {@link File} reference. |
| | + */ |
| | + public void saveAs( final File file ) { |
| | + assert file != null; |
| | + final var editor = getActiveTextEditor(); |
| | + final var tab = getTab( editor ); |
| | + |
| | + editor.rename( file ); |
| | + tab.ifPresent( t -> { |
| | + t.setText( editor.getFilename() ); |
| | + t.setTooltip( createTooltip( file ) ); |
| | + } ); |
| | + |
| | + save(); |
| | + } |
| | + |
| | + /** |
| | + * Saves the given {@link TextResource} to a file. This is typically used |
| | + * to save either an instance of {@link TextEditor} or {@link TextDefinition}. |
| | + * |
| | + * @param resource The resource to export. |
| | + */ |
| | + private void save( final TextResource resource ) { |
| | + try { |
| | + resource.save(); |
| | + } catch( final Exception ex ) { |
| | + clue( ex ); |
| | + sNotifier.alert( |
| | + getWindow(), resource.getPath(), "TextResource.saveFailed", ex |
| | + ); |
| | + } |
| | + } |
| | + |
| | + /** |
| | + * Closes all open {@link TextEditor}s; all {@link TextDefinition}s stay open. |
| | + * |
| | + * @return {@code true} when all editors, modified or otherwise, were |
| | + * permitted to close; {@code false} when one or more editors were modified |
| | + * and the user requested no closing. |
| | + */ |
| | + public boolean closeAll() { |
| | + var closable = true; |
| | + |
| | + for( final var entry : mTabPanes.entrySet() ) { |
| | + final var tabPane = entry.getValue(); |
| | + final var tabIterator = tabPane.getTabs().iterator(); |
| | + |
| | + while( tabIterator.hasNext() ) { |
| | + final var tab = tabIterator.next(); |
| | + final var resource = tab.getContent(); |
| | + |
| | + // The definition panes auto-save, so being specific here prevents |
| | + // closing the definitions in the situation where the user wants to |
| | + // continue editing (i.e., possibly save unsaved work). |
| | + if( !(resource instanceof TextEditor) ) { |
| | + continue; |
| | + } |
| | + |
| | + if( canClose( (TextEditor) resource ) ) { |
| | + tabIterator.remove(); |
| | + close( tab ); |
| | + } |
| | + else { |
| | + closable = false; |
| | + } |
| | + } |
| | + } |
| | + |
| | + return closable; |
| | + } |
| | + |
| | + /** |
| | + * Calls the tab's {@link Tab#getOnClosed()} handler to carry out a close |
| | + * event. |
| | + * |
| | + * @param tab The {@link Tab} that was closed. |
| | + */ |
| | + private void close( final Tab tab ) { |
| | + final var handler = tab.getOnClosed(); |
| | + |
| | + if( handler != null ) { |
| | + handler.handle( new ActionEvent() ); |
| | + } |
| | + } |
| | + |
| | + /** |
| | + * Closes the active tab; delegates to {@link #canClose(TextResource)}. |
| | + */ |
| | + public void close() { |
| | + final var editor = getActiveTextEditor(); |
| | + |
| | + if( canClose( editor ) ) { |
| | + close( editor ); |
| | + } |
| | + } |
| | + |
| | + /** |
| | + * Closes the given {@link TextResource}. This must not be called from within |
| | + * a loop that iterates over the tab panes using {@code forEach}, lest a |
| | + * concurrent modification exception be thrown. |
| | + * |
| | + * @param resource The {@link TextResource} to close, without confirming with |
| | + * the user. |
| | + */ |
| | + private void close( final TextResource resource ) { |
| | + getTab( resource ).ifPresent( |
| | + ( tab ) -> { |
| | + tab.getTabPane().getTabs().remove( tab ); |
| | + close( tab ); |
| | + } |
| | + ); |
| | + } |
| | + |
| | + /** |
| | + * Answers whether the given {@link TextResource} may be closed. |
| | + * |
| | + * @param editor The {@link TextResource} to try closing. |
| | + * @return {@code true} when the editor may be closed; {@code false} when |
| | + * the user has requested to keep the editor open. |
| | + */ |
| | + private boolean canClose( final TextResource editor ) { |
| | + final var editorTab = getTab( editor ); |
| | + final var canClose = new AtomicBoolean( true ); |
| | + |
| | + if( editor.isModified() ) { |
| | + final var filename = new StringBuilder(); |
| | + editorTab.ifPresent( ( tab ) -> filename.append( tab.getText() ) ); |
| | + |
| | + final var message = sNotifier.createNotification( |
| | + Messages.get( "Alert.file.close.title" ), |
| | + Messages.get( "Alert.file.close.text" ), |
| | + filename.toString() |
| | + ); |
| | + |
| | + final var dialog = sNotifier.createConfirmation( getWindow(), message ); |
| | + |
| | + dialog.showAndWait().ifPresent( |
| | + save -> canClose.set( save == YES ? editor.save() : save == NO ) |
| | + ); |
| | + } |
| | + |
| | + return canClose.get(); |
| | + } |
| | + |
| | + private ObjectProperty<TextEditor> createActiveTextEditor() { |
| | + final var editor = new SimpleObjectProperty<TextEditor>(); |
| | + |
| | + editor.addListener( ( c, o, n ) -> { |
| | + if( n != null ) { |
| | + mPreview.setBaseUri( n.getPath() ); |
| | + process( n ); |
| | + } |
| | + } ); |
| | + |
| | + return editor; |
| | + } |
| | + |
| | + /** |
| | + * Adds the HTML preview tab to its own, singular tab pane. |
| | + */ |
| | + public void viewPreview() { |
| | + viewTab( mPreview, TEXT_HTML, "Pane.preview.title" ); |
| | + } |
| | + |
| | + /** |
| | + * Adds the document outline tab to its own, singular tab pane. |
| | + */ |
| | + public void viewOutline() { |
| | + viewTab( mOutline, APP_DOCUMENT_OUTLINE, "Pane.outline.title" ); |
| | + } |
| | + |
| | + public void viewStatistics() { |
| | + viewTab( mStatistics, APP_DOCUMENT_STATISTICS, "Pane.statistics.title" ); |
| | + } |
| | + |
| | + public void viewFiles() { |
| | + try { |
| | + final var fileManager = new FilesView( mWorkspace ); |
| | + viewTab( fileManager, APP_FILE_MANAGER, "Pane.files.title" ); |
| | + } catch( final Exception ex ) { |
| | + clue( ex ); |
| | + } |
| | + } |
| | + |
| | + private void viewTab( |
| | + final Node node, final MediaType mediaType, final String key ) { |
| | + final var tabPane = obtainTabPane( mediaType ); |
| | + |
| | + for( final var tab : tabPane.getTabs() ) { |
| | + if( tab.getContent() == node ) { |
| | + return; |
| | + } |
| | + } |
| | + |
| | + tabPane.getTabs().add( createTab( get( key ), node ) ); |
| | + addTabPane( tabPane ); |
| | + } |
| | + |
| | + public void viewRefresh() { |
| | + mPreview.refresh(); |
| | + } |
| | + |
| | + /** |
| | + * Returns the tab that contains the given {@link TextEditor}. |
| | + * |
| | + * @param editor The {@link TextEditor} instance to find amongst the tabs. |
| | + * @return The first tab having content that matches the given tab. |
| | + */ |
| | + private Optional<Tab> getTab( final TextResource editor ) { |
| | + return mTabPanes.values() |
| | + .stream() |
| | + .flatMap( pane -> pane.getTabs().stream() ) |
| | + .filter( tab -> editor.equals( tab.getContent() ) ) |
| | + .findFirst(); |
| | + } |
| | + |
| | + /** |
| | + * Creates a new {@link DefinitionEditor} wrapped in a listener that |
| | + * is used to detect when the active {@link DefinitionEditor} has changed. |
| | + * Upon changing, the {@link #mResolvedMap} is updated and the active |
| | + * text editor is refreshed. |
| | + * |
| | + * @param editor Text editor to update with the revised resolved map. |
| | + * @return A newly configured property that represents the active |
| | + * {@link DefinitionEditor}, never null. |
| | + */ |
| | + private ObjectProperty<TextDefinition> createActiveDefinitionEditor( |
| | + final ObjectProperty<TextEditor> editor ) { |
| | + final var definitions = new SimpleObjectProperty<TextDefinition>(); |
| | + definitions.addListener( ( c, o, n ) -> { |
| | + resolve( n == null ? createDefinitionEditor() : n ); |
| | + process( editor.get() ); |
| | + } ); |
| | + |
| | + return definitions; |
| | + } |
| | + |
| | + private Tab createTab( final String filename, final Node node ) { |
| | + return new DetachableTab( filename, node ); |
| | + } |
| | + |
| | + private Tab createTab( final File file ) { |
| | + final var r = createTextResource( file ); |
| | + final var tab = createTab( r.getFilename(), r.getNode() ); |
| | + |
| | + r.modifiedProperty().addListener( |
| | + ( c, o, n ) -> tab.setText( r.getFilename() + (n ? "*" : "") ) |
| | + ); |
| | + |
| | + // This is called when either the tab is closed by the user clicking on |
| | + // the tab's close icon or when closing (all) from the file menu. |
| | + tab.setOnClosed( |
| | + ( __ ) -> getRecentFiles().remove( file.getAbsolutePath() ) |
| | + ); |
| | + |
| | + tab.tabPaneProperty().addListener( ( cPane, oPane, nPane ) -> { |
| | + if( nPane != null ) { |
| | + nPane.focusedProperty().addListener( ( c, o, n ) -> { |
| | + if( n != null && n ) { |
| | + final var selected = nPane.getSelectionModel().getSelectedItem(); |
| | + final var node = selected.getContent(); |
| | + node.requestFocus(); |
| | + } |
| | + } ); |
| | + } |
| | + } ); |
| | + |
| | + return tab; |
| | + } |
| | + |
| | + /** |
| | + * Creates bins for the different {@link MediaType}s, which eventually are |
| | + * added to the UI as separate tab panes. If ever a general-purpose scene |
| | + * exporter is developed to serialize a scene to an FXML file, this could |
| | + * be replaced by such a class. |
| | + * <p> |
| | + * When binning the files, this makes sure that at least one file exists |
| | + * for every type. If the user has opted to close a particular type (such |
| | + * as the definition pane), the view will suppressed elsewhere. |
| | + * </p> |
| | + * <p> |
| | + * The order that the binned files are returned will be reflected in the |
| | + * order that the corresponding panes are rendered in the UI. |
| | + * </p> |
| | + * |
| | + * @param paths The file paths to bin according to their type. |
| | + * @return An in-order list of files, first by structured definition files, |
| | + * then by plain text documents. |
| | + */ |
| | + private List<File> bin( final SetProperty<String> paths ) { |
| | + // Treat all files destined for the text editor as plain text documents |
| | + // so that they are added to the same pane. Grouping by TEXT_PLAIN is a |
| | + // bit arbitrary, but means explicitly capturing TEXT_PLAIN isn't needed. |
| | + final Function<MediaType, MediaType> bin = |
| | + m -> PLAIN_TEXT_FORMAT.contains( m ) ? TEXT_PLAIN : m; |
| | + |
| | + // Create two groups: YAML files and plain text files. |
| | + final var bins = paths |
| | + .stream() |
| | + .collect( |
| | + groupingBy( path -> bin.apply( MediaType.fromFilename( path ) ) ) |
| | + ); |
| | + |
| | + bins.putIfAbsent( TEXT_YAML, List.of( DEFINITION_DEFAULT.toString() ) ); |
| | + bins.putIfAbsent( TEXT_PLAIN, List.of( DOCUMENT_DEFAULT.toString() ) ); |
| | + |
| | + final var result = new ArrayList<File>( paths.size() ); |
| | + |
| | + // Ensure that the same types are listed together (keep insertion order). |
| | + bins.forEach( ( mediaType, files ) -> result.addAll( |
| | + files.stream().map( File::new ).collect( Collectors.toList() ) ) |
| | + ); |
| | + |
| | + return result; |
| | + } |
| | + |
| | + /** |
| | + * Uses the given {@link TextDefinition} instance to update the |
| | + * {@link #mResolvedMap}. |
| | + * |
| | + * @param editor A non-null, possibly empty definition editor. |
| | + */ |
| | + private void resolve( final TextDefinition editor ) { |
| | + assert editor != null; |
| | + |
| | + final var tokens = createDefinitionTokens(); |
| | + final var operator = new YamlSigilOperator( tokens ); |
| | + final var map = new HashMap<String, String>(); |
| | + |
| | + editor.toMap().forEach( ( k, v ) -> map.put( operator.entoken( k ), v ) ); |
| | + |
| | + mResolvedMap.clear(); |
| | + mResolvedMap.putAll( editor.interpolate( map, tokens ) ); |
| | + } |
| | + |
| | + /** |
| | + * Force the active editor to update, which will cause the processor |
| | + * to re-evaluate the interpolated definition map thereby updating the |
| | + * preview pane. |
| | + * |
| | + * @param editor Contains the source document to update in the preview pane. |
| | + */ |
| | + private void process( final TextEditor editor ) { |
| | + // Ensure processing does not run on the JavaFX thread, which frees the |
| | + // text editor immediately for caret movement. The preview will have a |
| | + // slight delay when catching up to the caret position. |
| | + final var task = new Task<Void>() { |
| | + @Override |
| | + public Void call() { |
| | + final var processor = mProcessors.getOrDefault( editor, IDENTITY ); |
| | + processor.apply( editor == null ? "" : editor.getText() ); |
| | + return null; |
| | + } |
| | + }; |
| | + |
| | + task.setOnSucceeded( |
| | + e -> invokeLater( () -> mPreview.scrollTo( CARET_ID ) ) |
| | + ); |
| | + |
| | + // Prevents multiple process requests from executing simultaneously (due |
| | + // to having a restricted queue size). |
| | + sExecutor.execute( task ); |
| | } |
| | |
