editor adjustments

prometeu-studio/src/main/java/p/studio/utilities/i18n/I18n.java

@@ -78,12 +78,12 @@ public enum I18n {
     CODE_EDITOR_NAVIGATOR_DETAIL("codeEditor.navigator.detail"),
     CODE_EDITOR_OUTLINE_TITLE("codeEditor.outline.title"),
     CODE_EDITOR_OUTLINE_PLACEHOLDER("codeEditor.outline.placeholder"),
-    CODE_EDITOR_OUTLINE_DIAGNOSTICS("codeEditor.outline.diagnostics"),
     CODE_EDITOR_OUTLINE_SYMBOLS("codeEditor.outline.symbols"),
-    CODE_EDITOR_OUTLINE_EMPTY_DIAGNOSTICS("codeEditor.outline.emptyDiagnostics"),
     CODE_EDITOR_OUTLINE_EMPTY_SYMBOLS("codeEditor.outline.emptySymbols"),
     CODE_EDITOR_HELPER_TITLE("codeEditor.helper.title"),
     CODE_EDITOR_HELPER_PLACEHOLDER("codeEditor.helper.placeholder"),
+    CODE_EDITOR_HELPER_DIAGNOSTICS("codeEditor.helper.diagnostics"),
+    CODE_EDITOR_HELPER_EMPTY_DIAGNOSTICS("codeEditor.helper.emptyDiagnostics"),
     CODE_EDITOR_TABS_PLACEHOLDER("codeEditor.tabs.placeholder"),
     CODE_EDITOR_TABS_OVERFLOW("codeEditor.tabs.overflow"),
     CODE_EDITOR_STATUS_BREADCRUMB("codeEditor.status.breadcrumb"),
@@ -91,8 +91,6 @@ public enum I18n {
     CODE_EDITOR_STATUS_LINE_SEPARATOR("codeEditor.status.lineSeparator"),
     CODE_EDITOR_STATUS_INDENTATION("codeEditor.status.indentation"),
     CODE_EDITOR_STATUS_LANGUAGE("codeEditor.status.language"),
-    CODE_EDITOR_STATUS_EDITABLE("codeEditor.status.editable"),
-    CODE_EDITOR_STATUS_READ_ONLY("codeEditor.status.readOnly"),
     CODE_EDITOR_COMMAND_SAVE("codeEditor.command.save"),
     CODE_EDITOR_COMMAND_SAVE_ALL("codeEditor.command.saveAll"),
     CODE_EDITOR_WARNING_FRONTEND_READ_ONLY("codeEditor.warning.frontendReadOnly"),

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorHelperPanel.java

@@ -2,15 +2,23 @@ package p.studio.workspaces.editor;
 
 import javafx.geometry.Insets;
 import javafx.scene.control.Label;
+import javafx.scene.control.ScrollPane;
 import javafx.scene.layout.VBox;
 import p.studio.Container;
 import p.studio.controls.WorkspaceDockPane;
+import p.studio.lsp.dtos.LspDiagnosticDTO;
 import p.studio.utilities.i18n.I18n;
 
+import java.nio.file.Path;
+import java.util.List;
+
 public final class EditorHelperPanel extends WorkspaceDockPane {
     public static final double COLLAPSED_HEIGHT = 34.0;
     public static final double MINIMUM_EXPANDED_HEIGHT = 120.0;
     public static final double DEFAULT_EXPANDED_HEIGHT = 180.0;
+    private final Label summary = new Label();
+    private final Label diagnosticsTitle = new Label();
+    private final VBox diagnosticsBox = new VBox(6);
 
     public EditorHelperPanel() {
         super(
@@ -22,14 +30,67 @@ public final class EditorHelperPanel extends WorkspaceDockPane {
                 "editor-workspace-helper-pane",
                 "editor-workspace-helper-panel");
 
-        final var placeholder = new Label();
+        summary.getStyleClass().addAll("editor-workspace-placeholder", "editor-workspace-helper-summary");
-        placeholder.textProperty().bind(Container.i18n().bind(I18n.CODE_EDITOR_HELPER_PLACEHOLDER));
+        summary.setWrapText(true);
-        placeholder.getStyleClass().add("editor-workspace-placeholder");
+        diagnosticsTitle.textProperty().bind(Container.i18n().bind(I18n.CODE_EDITOR_HELPER_DIAGNOSTICS));
-        placeholder.setWrapText(true);
+        diagnosticsTitle.getStyleClass().add("editor-workspace-outline-section-title");
+        diagnosticsBox.getStyleClass().add("editor-workspace-outline-list");
 
-        final var content = new VBox(8, placeholder);
+        final var content = new VBox(10, summary, diagnosticsTitle, diagnosticsBox);
         content.getStyleClass().add("editor-workspace-panel-content");
         content.setPadding(new Insets(10, 16, 14, 16));
-        setDockContent(content);
+        final var scrollPane = new ScrollPane(content);
+        scrollPane.setFitToWidth(true);
+        scrollPane.getStyleClass().add("editor-workspace-outline-scroll");
+        setDockContent(scrollPane);
+        showPlaceholder();
+    }
+
+    public void showPlaceholder() {
+        summary.textProperty().unbind();
+        summary.textProperty().bind(Container.i18n().bind(I18n.CODE_EDITOR_HELPER_PLACEHOLDER));
+        diagnosticsBox.getChildren().setAll(placeholderLabel(I18n.CODE_EDITOR_HELPER_EMPTY_DIAGNOSTICS));
+    }
+
+    public void showSemanticReadResult(
+            final Path documentPath,
+            final List<LspDiagnosticDTO> diagnostics) {
+        summary.textProperty().unbind();
+        summary.setText(documentPath.getFileName() + " • semantic read-only");
+        rebuildDiagnostics(diagnostics);
+    }
+
+    private void rebuildDiagnostics(final List<LspDiagnosticDTO> diagnostics) {
+        diagnosticsBox.getChildren().clear();
+        if (diagnostics.isEmpty()) {
+            diagnosticsBox.getChildren().add(placeholderLabel(I18n.CODE_EDITOR_HELPER_EMPTY_DIAGNOSTICS));
+            return;
+        }
+        for (final LspDiagnosticDTO diagnostic : diagnostics) {
+            final var label = new Label(formatDiagnostic(diagnostic));
+            label.setWrapText(true);
+            label.getStyleClass().addAll(
+                    "editor-workspace-outline-item",
+                    diagnostic.severity().name().equals("ERROR")
+                            ? "editor-workspace-outline-diagnostic-error"
+                            : "editor-workspace-outline-diagnostic-warning");
+            diagnosticsBox.getChildren().add(label);
+        }
+    }
+
+    private Label placeholderLabel(final I18n key) {
+        final var label = new Label();
+        label.textProperty().bind(Container.i18n().bind(key));
+        label.setWrapText(true);
+        label.getStyleClass().addAll("editor-workspace-placeholder", "editor-workspace-outline-item");
+        return label;
+    }
+
+    private String formatDiagnostic(final LspDiagnosticDTO diagnostic) {
+        return "%s [%d,%d) %s".formatted(
+                diagnostic.severity().name(),
+                diagnostic.range().startOffset(),
+                diagnostic.range().endOffset(),
+                diagnostic.message());
     }
 }

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorOutlinePanel.java

@@ -4,7 +4,6 @@ import javafx.geometry.Insets;
 import javafx.scene.control.Label;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.layout.VBox;
-import p.studio.lsp.dtos.LspDiagnosticDTO;
 import p.studio.lsp.dtos.LspSymbolDTO;
 import p.studio.Container;
 import p.studio.controls.WorkspaceDockPane;
@@ -18,7 +17,6 @@ public final class EditorOutlinePanel extends WorkspaceDockPane {
     private static final double MINIMUM_EXPANDED_HEIGHT = 120.0;
     private static final double DEFAULT_HEIGHT = 180.0;
     private final Label summary = new Label();
-    private final VBox diagnosticsBox = new VBox(6);
     private final VBox symbolsBox = new VBox(6);
 
     public EditorOutlinePanel() {
@@ -33,16 +31,12 @@ public final class EditorOutlinePanel extends WorkspaceDockPane {
         summary.getStyleClass().addAll("editor-workspace-placeholder", "editor-workspace-outline-summary");
         summary.setWrapText(true);
 
-        final var diagnosticsTitle = sectionTitle(I18n.CODE_EDITOR_OUTLINE_DIAGNOSTICS);
         final var symbolsTitle = sectionTitle(I18n.CODE_EDITOR_OUTLINE_SYMBOLS);
 
-        diagnosticsBox.getStyleClass().add("editor-workspace-outline-list");
         symbolsBox.getStyleClass().add("editor-workspace-outline-list");
 
         final var content = new VBox(10,
                 summary,
-                diagnosticsTitle,
-                diagnosticsBox,
                 symbolsTitle,
                 symbolsBox);
         content.getStyleClass().add("editor-workspace-panel-content");
@@ -57,38 +51,17 @@ public final class EditorOutlinePanel extends WorkspaceDockPane {
     public void showPlaceholder() {
         summary.textProperty().unbind();
         summary.textProperty().bind(Container.i18n().bind(I18n.CODE_EDITOR_OUTLINE_PLACEHOLDER));
-        diagnosticsBox.getChildren().setAll(placeholderLabel(I18n.CODE_EDITOR_OUTLINE_EMPTY_DIAGNOSTICS));
         symbolsBox.getChildren().setAll(placeholderLabel(I18n.CODE_EDITOR_OUTLINE_EMPTY_SYMBOLS));
     }
 
     public void showSemanticReadResult(
             final Path documentPath,
-            final List<LspDiagnosticDTO> diagnostics,
             final List<LspSymbolDTO> symbols) {
         summary.textProperty().unbind();
         summary.setText(documentPath.getFileName() + " • semantic read-only");
-        rebuildDiagnostics(diagnostics);
         rebuildSymbols(symbols);
     }
 
-    private void rebuildDiagnostics(final List<LspDiagnosticDTO> diagnostics) {
-        diagnosticsBox.getChildren().clear();
-        if (diagnostics.isEmpty()) {
-            diagnosticsBox.getChildren().add(placeholderLabel(I18n.CODE_EDITOR_OUTLINE_EMPTY_DIAGNOSTICS));
-            return;
-        }
-        for (final LspDiagnosticDTO diagnostic : diagnostics) {
-            final var label = new Label(formatDiagnostic(diagnostic));
-            label.setWrapText(true);
-            label.getStyleClass().addAll(
-                    "editor-workspace-outline-item",
-                    diagnostic.severity().name().equals("ERROR")
-                            ? "editor-workspace-outline-diagnostic-error"
-                            : "editor-workspace-outline-diagnostic-warning");
-            diagnosticsBox.getChildren().add(label);
-        }
-    }
-
     private void rebuildSymbols(final List<LspSymbolDTO> symbols) {
         symbolsBox.getChildren().clear();
         if (symbols.isEmpty()) {
@@ -125,12 +98,4 @@ public final class EditorOutlinePanel extends WorkspaceDockPane {
         label.getStyleClass().addAll("editor-workspace-placeholder", "editor-workspace-outline-item");
         return label;
     }
-
-    private String formatDiagnostic(final LspDiagnosticDTO diagnostic) {
-        return "%s [%d,%d) %s".formatted(
-                diagnostic.severity().name(),
-                diagnostic.range().startOffset(),
-                diagnostic.range().endOffset(),
-                diagnostic.message());
-    }
 }

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorStatusBar.java

@@ -6,6 +6,7 @@ import javafx.scene.control.Label;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.Priority;
 import javafx.scene.layout.Region;
+import javafx.scene.layout.StackPane;
 import p.studio.Container;
 import p.studio.projects.ProjectReference;
 import p.studio.utilities.i18n.I18n;
@@ -19,7 +20,7 @@ public final class EditorStatusBar extends HBox {
     private final Label lineSeparator = new Label();
     private final Label indentation = new Label();
     private final Label language = new Label();
-    private final Label readOnly = new Label();
+    private final StackPane accessMode = new StackPane();
 
     public EditorStatusBar() {
         setAlignment(Pos.CENTER_LEFT);
@@ -40,8 +41,7 @@ public final class EditorStatusBar extends HBox {
         indentation.getStyleClass().add("editor-workspace-status-chip-indentation");
         styleChip(language);
         language.getStyleClass().add("editor-workspace-status-chip-language");
-        styleChip(readOnly);
+        accessMode.getStyleClass().addAll("editor-workspace-status-chip", "editor-workspace-status-chip-access-mode");
-        readOnly.getStyleClass().add("editor-workspace-status-chip-read-only");
 
         getChildren().addAll(
                 breadcrumb,
@@ -50,7 +50,7 @@ public final class EditorStatusBar extends HBox {
                 lineSeparator,
                 indentation,
                 language,
-                readOnly
+                accessMode
         );
 
     }
@@ -66,7 +66,7 @@ public final class EditorStatusBar extends HBox {
         bindDefault(indentation, I18n.CODE_EDITOR_STATUS_INDENTATION);
         setText(language, fileBuffer.typeId());
         EditorDocumentPresentationStyles.applyToStatusChip(language, presentation);
-        showAccessMode(fileBuffer);
+        showAccessMode(fileBuffer.readOnly());
     }
 
     public void showPlaceholder(final EditorDocumentPresentation presentation) {
@@ -77,11 +77,8 @@ public final class EditorStatusBar extends HBox {
         bindDefault(indentation, I18n.CODE_EDITOR_STATUS_INDENTATION);
         bindDefault(language, I18n.CODE_EDITOR_STATUS_LANGUAGE);
         EditorDocumentPresentationStyles.applyToStatusChip(language, presentation);
-        bindDefault(readOnly, I18n.CODE_EDITOR_STATUS_READ_ONLY);
+        accessMode.getChildren().clear();
-        readOnly.getStyleClass().remove("editor-workspace-status-chip-editable");
+        accessMode.getStyleClass().removeAll("editor-workspace-status-chip-editable", "editor-workspace-status-chip-read-only");
-        if (!readOnly.getStyleClass().contains("editor-workspace-status-chip-read-only")) {
-            readOnly.getStyleClass().add("editor-workspace-status-chip-read-only");
-        }
     }
 
     private void bindDefault(final Label label, final I18n key) {
@@ -175,29 +172,22 @@ public final class EditorStatusBar extends HBox {
         setVisibleManaged(lineSeparator, visible);
         setVisibleManaged(indentation, visible);
         setVisibleManaged(language, visible);
-        setVisibleManaged(readOnly, visible);
+        setVisibleManaged(accessMode, visible);
     }
 
-    private void showAccessMode(final EditorOpenFileBuffer fileBuffer) {
+    private void showAccessMode(final boolean readOnlyMode) {
-        if (fileBuffer.readOnly()) {
+        accessMode.getChildren().setAll(readOnlyMode
-            bindDefault(readOnly, I18n.CODE_EDITOR_STATUS_READ_ONLY);
+                ? EditorWorkspaceIcons.lockClosed()
-            readOnly.getStyleClass().remove("editor-workspace-status-chip-editable");
+                : EditorWorkspaceIcons.lockOpen());
-            if (!readOnly.getStyleClass().contains("editor-workspace-status-chip-read-only")) {
+        accessMode.getStyleClass().removeAll("editor-workspace-status-chip-editable", "editor-workspace-status-chip-read-only");
-                readOnly.getStyleClass().add("editor-workspace-status-chip-read-only");
+        accessMode.getStyleClass().add(readOnlyMode
-            }
+                ? "editor-workspace-status-chip-read-only"
-            return;
+                : "editor-workspace-status-chip-editable");
-        }
-
-        bindDefault(readOnly, I18n.CODE_EDITOR_STATUS_EDITABLE);
-        readOnly.getStyleClass().remove("editor-workspace-status-chip-read-only");
-        if (!readOnly.getStyleClass().contains("editor-workspace-status-chip-editable")) {
-            readOnly.getStyleClass().add("editor-workspace-status-chip-editable");
-        }
     }
 
-    private void setVisibleManaged(final Label label, final boolean visible) {
+    private void setVisibleManaged(final Node node, final boolean visible) {
-        label.setVisible(visible);
+        node.setVisible(visible);
-        label.setManaged(visible);
+        node.setManaged(visible);
     }
 
     private void styleChip(final Label label) {

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorWarningStrip.java

@@ -0,0 +1,103 @@
+package p.studio.workspaces.editor;
+
+import javafx.geometry.Pos;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
+import javafx.scene.layout.Region;
+
+import java.util.List;
+import java.util.Objects;
+
+public final class EditorWarningStrip extends HBox {
+    private final Label message = new Label();
+    private final Label counter = new Label();
+    private final Button previousButton = new Button("‹");
+    private final Button nextButton = new Button("›");
+    private final Button closeButton = new Button("×");
+
+    private List<WarningItem> warnings = List.of();
+    private int activeIndex;
+    private boolean dismissed;
+
+    public EditorWarningStrip() {
+        setAlignment(Pos.CENTER_LEFT);
+        getStyleClass().add("editor-workspace-warning");
+
+        message.setWrapText(true);
+        message.setMaxWidth(Double.MAX_VALUE);
+        HBox.setHgrow(message, Priority.ALWAYS);
+
+        counter.getStyleClass().add("editor-workspace-warning-counter");
+
+        previousButton.getStyleClass().add("editor-workspace-warning-button");
+        nextButton.getStyleClass().add("editor-workspace-warning-button");
+        closeButton.getStyleClass().add("editor-workspace-warning-button");
+
+        previousButton.setFocusTraversable(false);
+        nextButton.setFocusTraversable(false);
+        closeButton.setFocusTraversable(false);
+
+        previousButton.setOnAction(event -> showIndex(activeIndex - 1));
+        nextButton.setOnAction(event -> showIndex(activeIndex + 1));
+        closeButton.setOnAction(event -> dismiss());
+
+        final var spacer = new Region();
+        HBox.setHgrow(spacer, Priority.ALWAYS);
+        getChildren().addAll(message, spacer, counter, previousButton, nextButton, closeButton);
+        setVisible(false);
+        setManaged(false);
+    }
+
+    public void showWarnings(final List<WarningItem> warningItems) {
+        warnings = List.copyOf(Objects.requireNonNull(warningItems, "warningItems"));
+        activeIndex = 0;
+        dismissed = false;
+        refresh();
+    }
+
+    public void clearWarnings() {
+        warnings = List.of();
+        activeIndex = 0;
+        dismissed = false;
+        refresh();
+    }
+
+    private void dismiss() {
+        dismissed = true;
+        refresh();
+    }
+
+    private void showIndex(final int candidateIndex) {
+        if (warnings.isEmpty()) {
+            return;
+        }
+        activeIndex = Math.floorMod(candidateIndex, warnings.size());
+        refresh();
+    }
+
+    private void refresh() {
+        final boolean visible = !dismissed && !warnings.isEmpty();
+        setVisible(visible);
+        setManaged(visible);
+        if (!visible) {
+            message.setText("");
+            counter.setText("");
+            return;
+        }
+
+        final WarningItem warning = warnings.get(activeIndex);
+        message.setText(warning.message());
+        counter.setText(warnings.size() == 1 ? "1/1" : (activeIndex + 1) + "/" + warnings.size());
+        final boolean canNavigate = warnings.size() > 1;
+        previousButton.setDisable(!canNavigate);
+        nextButton.setDisable(!canNavigate);
+    }
+
+    public record WarningItem(String message) {
+        public WarningItem {
+            message = Objects.requireNonNull(message, "message");
+        }
+    }
+}

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorWorkspace.java

@@ -1,11 +1,12 @@
 package p.studio.workspaces.editor;
 
+import javafx.application.Platform;
 import javafx.scene.Node;
 import javafx.scene.control.Alert;
 import javafx.scene.control.Button;
-import javafx.scene.control.Label;
 import javafx.scene.control.SplitPane;
 import javafx.scene.layout.*;
+import org.fxmisc.flowless.VirtualizedScrollPane;
 import org.fxmisc.richtext.CodeArea;
 import org.fxmisc.richtext.LineNumberFactory;
 import p.studio.lsp.LspService;
@@ -27,9 +28,10 @@ import java.util.Objects;
 public final class EditorWorkspace extends Workspace {
     private final BorderPane root = new BorderPane();
     private final CodeArea codeArea = new CodeArea();
+    private final VirtualizedScrollPane<CodeArea> codeScroller = new VirtualizedScrollPane<>(codeArea);
     private final Button saveButton = new Button();
     private final Button saveAllButton = new Button();
-    private final Label readOnlyWarning = new Label();
+    private final EditorWarningStrip warningStrip = new EditorWarningStrip();
     private final EditorProjectNavigatorPanel navigatorPanel = new EditorProjectNavigatorPanel();
     private final EditorOutlinePanel outlinePanel = new EditorOutlinePanel();
     private final EditorHelperPanel helperPanel = new EditorHelperPanel();
@@ -135,9 +137,19 @@ public final class EditorWorkspace extends Workspace {
         try {
             codeArea.replaceText(fileBuffer.content());
             codeArea.setStyleSpans(0, highlighting.styleSpans());
+            codeArea.moveTo(0);
+            codeArea.requestFollowCaret();
         } finally {
             syncingEditor = false;
         }
+        Platform.runLater(() -> {
+            codeArea.moveTo(0);
+            codeArea.showParagraphAtTop(0);
+            codeArea.requestFollowCaret();
+            if (fileBuffer.editable()) {
+                codeArea.requestFocus();
+            }
+        });
         codeArea.setEditable(fileBuffer.editable());
         EditorDocumentPresentationStyles.applyToCodeArea(codeArea, presentation);
         refreshCommandSurfaces(fileBuffer);
@@ -164,25 +176,28 @@ public final class EditorWorkspace extends Workspace {
 
     private void showEditorPlaceholder() {
         final EditorDocumentPresentation presentation = presentationRegistry.resolve("text");
-        final String placeholder = """
-        // Controlled write wave
-        // Open a supported project document from the navigator.
-        """;
         applyPresentationStylesheets(presentation);
         syncingEditor = true;
         try {
-            codeArea.replaceText(placeholder);
+            codeArea.replaceText("");
-            codeArea.setStyleSpans(0, presentation.highlight(placeholder));
+            codeArea.setStyleSpans(0, presentation.highlight(""));
+            codeArea.moveTo(0);
+            codeArea.requestFollowCaret();
         } finally {
             syncingEditor = false;
         }
+        Platform.runLater(() -> {
+            codeArea.moveTo(0);
+            codeArea.showParagraphAtTop(0);
+            codeArea.requestFollowCaret();
+        });
         codeArea.setEditable(false);
         EditorDocumentPresentationStyles.applyToCodeArea(codeArea, presentation);
         saveButton.setDisable(true);
         saveAllButton.setDisable(true);
-        readOnlyWarning.setVisible(false);
+        warningStrip.clearWarnings();
-        readOnlyWarning.setManaged(false);
         outlinePanel.showPlaceholder();
+        helperPanel.showPlaceholder();
     }
 
     private void applyPresentationStylesheets(final EditorDocumentPresentation presentation) {
@@ -210,9 +225,13 @@ public final class EditorWorkspace extends Workspace {
     }
 
     private VBox buildCenterColumn() {
-        final var centerColumn = new VBox(12, buildCommandBar(), readOnlyWarning, tabStrip, codeArea);
+        final var editorSurface = new VBox(0, warningStrip, codeScroller);
+        editorSurface.getStyleClass().add("editor-workspace-editor-surface");
+        codeScroller.getStyleClass().add("editor-workspace-code-scroller");
+        VBox.setVgrow(codeScroller, Priority.ALWAYS);
+        final var centerColumn = new VBox(12, buildCommandBar(), tabStrip, editorSurface);
         centerColumn.getStyleClass().add("editor-workspace-center-column");
-        VBox.setVgrow(codeArea, Priority.ALWAYS);
+        VBox.setVgrow(editorSurface, Priority.ALWAYS);
         return centerColumn;
     }
 
@@ -234,11 +253,7 @@ public final class EditorWorkspace extends Workspace {
     }
 
     private void configureWarning() {
-        readOnlyWarning.textProperty().bind(p.studio.Container.i18n().bind(I18n.CODE_EDITOR_WARNING_FRONTEND_READ_ONLY));
+        warningStrip.clearWarnings();
-        readOnlyWarning.getStyleClass().add("editor-workspace-warning");
-        readOnlyWarning.setWrapText(true);
-        readOnlyWarning.setVisible(false);
-        readOnlyWarning.setManaged(false);
     }
 
     private HBox buildCommandBar() {
@@ -302,9 +317,16 @@ public final class EditorWorkspace extends Workspace {
     private void refreshCommandSurfaces(final EditorOpenFileBuffer fileBuffer) {
         saveButton.setDisable(!fileBuffer.saveEnabled());
         saveAllButton.setDisable(!openFileSession.hasDirtyEditableFiles());
-        final boolean showWarning = fileBuffer.frontendDocument() && fileBuffer.readOnly();
+        final List<EditorWarningStrip.WarningItem> warnings = new ArrayList<>();
-        readOnlyWarning.setVisible(showWarning);
+        if (fileBuffer.frontendDocument() && fileBuffer.readOnly()) {
-        readOnlyWarning.setManaged(showWarning);
+            warnings.add(new EditorWarningStrip.WarningItem(
+                    p.studio.Container.i18n().text(I18n.CODE_EDITOR_WARNING_FRONTEND_READ_ONLY)));
+        }
+        if (warnings.isEmpty()) {
+            warningStrip.clearWarnings();
+            return;
+        }
+        warningStrip.showWarnings(warnings);
     }
 
     private EditorOpenFileBuffer bufferFrom(final VfsDocumentOpenResult.VfsTextDocument textDocument) {
@@ -324,11 +346,10 @@ public final class EditorWorkspace extends Workspace {
             final LspAnalyzeDocumentResult analysis) {
         if (!fileBuffer.frontendDocument() || analysis == null) {
             outlinePanel.showPlaceholder();
+            helperPanel.showPlaceholder();
             return;
         }
-        outlinePanel.showSemanticReadResult(
+        outlinePanel.showSemanticReadResult(fileBuffer.path(), analysis.documentSymbols());
-                fileBuffer.path(),
+        helperPanel.showSemanticReadResult(fileBuffer.path(), analysis.diagnostics());
-                analysis.diagnostics(),
-                analysis.documentSymbols());
     }
 }

prometeu-studio/src/main/java/p/studio/workspaces/editor/EditorWorkspaceIcons.java

@@ -4,7 +4,14 @@ import javafx.scene.Node;
 import javafx.scene.layout.StackPane;
 import javafx.scene.shape.SVGPath;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public final class EditorWorkspaceIcons {
+    private static final Pattern SVG_PATH_PATTERN = Pattern.compile("<path[^>]*\\sd=\"([^\"]+)\"");
     private static final String FOLDER_PATH = "M1.5 4.5A1.5 1.5 0 0 1 3 3h3.2l1.1 1.4H13A1.5 1.5 0 0 1 14.5 5.9V12A1.5 1.5 0 0 1 13 13.5H3A1.5 1.5 0 0 1 1.5 12z";
     private static final String FILE_PATH = "M4 1.5h5l3 3V13A1.5 1.5 0 0 1 10.5 14.5h-6A1.5 1.5 0 0 1 3 13V3A1.5 1.5 0 0 1 4.5 1.5zm4.7 1.2V5h2.3z";
     private static final String COG_PATH = "M9.405 1.05c-.413-1.4-2.397-1.4-2.81 0l-.1.34a1.464 1.464 0 0 1-2.105.872l-.31-.17c-1.24-.68-2.64.72-1.96 1.96l.17.31c.446.816.023 1.84-.872 2.105l-.34.1c-1.4.413-1.4 2.397 0 2.81l.34.1c.895.265 1.318 1.289.872 2.105l-.17.31c-.68 1.24.72 2.64 1.96 1.96l.31-.17a1.464 1.464 0 0 1 2.105.872l.1.34c.413 1.4 2.397 1.4 2.81 0l.1-.34a1.464 1.464 0 0 1 2.105-.872l.31.17c1.24.68 2.64-.72 1.96-1.96l-.17-.31a1.464 1.464 0 0 1 .872-2.105l.34-.1c1.4-.413 1.4-2.397 0-2.81l-.34-.1a1.464 1.464 0 0 1-.872-2.105l.17-.31c.68-1.24-.72-2.64-1.96-1.96l-.31.17a1.464 1.464 0 0 1-2.105-.872z";
@@ -42,6 +49,14 @@ public final class EditorWorkspaceIcons {
         return icon(TARGET_PATH, "editor-workspace-icon-target");
     }
 
+    public static Node lockClosed() {
+        return icon(iconPathFromResource("/icons/editor/lock-closed.svg"), "editor-workspace-icon-lock-closed");
+    }
+
+    public static Node lockOpen() {
+        return icon(iconPathFromResource("/icons/editor/lock-open.svg"), "editor-workspace-icon-lock-open");
+    }
+
     private static Node icon(final String path, final String toneClass) {
         final var shape = new SVGPath();
         shape.setContent(path);
@@ -51,4 +66,20 @@ public final class EditorWorkspaceIcons {
         icon.getStyleClass().add("editor-workspace-icon");
         return icon;
     }
+
+    private static String iconPathFromResource(final String resourcePath) {
+        try (InputStream inputStream = EditorWorkspaceIcons.class.getResourceAsStream(resourcePath)) {
+            if (inputStream == null) {
+                throw new IllegalStateException("Missing icon resource: " + resourcePath);
+            }
+            final String svg = new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+            final Matcher matcher = SVG_PATH_PATTERN.matcher(svg);
+            if (!matcher.find()) {
+                throw new IllegalStateException("Missing <path d=\"...\"> in icon resource: " + resourcePath);
+            }
+            return matcher.group(1);
+        } catch (IOException exception) {
+            throw new IllegalStateException("Unable to read icon resource: " + resourcePath, exception);
+        }
+    }
 }

prometeu-studio/src/main/resources/i18n/messages.properties

@@ -68,13 +68,13 @@ codeEditor.navigator.revealActive=Reveal active file
 codeEditor.navigator.placeholder=Project navigation lands in the next implementation slice.
 codeEditor.navigator.detail=This first shell reserves the full navigator surface, its refresh action, and the left-column composition without wiring project-tree data yet.
 codeEditor.outline.title=Outline
-codeEditor.outline.placeholder=Open a frontend document to inspect read-only diagnostics and symbols.
+codeEditor.outline.placeholder=Open a frontend document to inspect semantic symbols.
-codeEditor.outline.diagnostics=Diagnostics
 codeEditor.outline.symbols=Symbols
-codeEditor.outline.emptyDiagnostics=No diagnostics for the active frontend document.
 codeEditor.outline.emptySymbols=No semantic symbols are currently available for the active frontend document.
 codeEditor.helper.title=Editor Helper
-codeEditor.helper.placeholder=This region is intentionally passive in the first read-only wave.
+codeEditor.helper.placeholder=Open a frontend document to inspect semantic diagnostics.
+codeEditor.helper.diagnostics=Diagnostics
+codeEditor.helper.emptyDiagnostics=No diagnostics for the active frontend document.
 codeEditor.tabs.placeholder=no-file-open.txt
 codeEditor.tabs.overflow=More
 codeEditor.status.breadcrumb=proj > src > file.pbs
@@ -82,8 +82,6 @@ codeEditor.status.position=L:C
 codeEditor.status.lineSeparator=LF
 codeEditor.status.indentation=Spaces: 4
 codeEditor.status.language=Text
-codeEditor.status.editable=Editable
-codeEditor.status.readOnly=Read-only
 codeEditor.command.save=Save
 codeEditor.command.saveAll=Save All
 codeEditor.warning.frontendReadOnly=This frontend file is read-only in this wave. It cannot be edited or saved yet.

prometeu-studio/src/main/resources/icons/editor/lock-closed.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16">
+  <path d="M5 6V4.75a3 3 0 1 1 6 0V6h.75A1.25 1.25 0 0 1 13 7.25v5.5A1.25 1.25 0 0 1 11.75 14h-7.5A1.25 1.25 0 0 1 3 12.75v-5.5A1.25 1.25 0 0 1 4.25 6zm1.5 0h3V4.75a1.5 1.5 0 1 0-3 0z"/>
+</svg>

prometeu-studio/src/main/resources/icons/editor/lock-open.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16">
+  <path d="M3.2 10.667c0-4.137.11-4.267 3.609-4.267 2.758 0 3.746-.523 4.189-2.218.766-2.928 5.375-2.44 5.834.618.32 2.131.318 2.131-1.365.005-1.445-1.825-1.826-1.901-2.675-.533-.618.996-.603 1.728.042 1.95.568.196 1.032 2.236 1.032 4.534v4.178H8.533H3.2z"/>
+</svg>

prometeu-studio/src/main/resources/themes/default-prometeu.css

@@ -506,6 +506,14 @@
     -fx-fill: #eff5fb;
 }
 
+.editor-workspace-icon-lock-closed {
+    -fx-fill: #f6d78f;
+}
+
+.editor-workspace-icon-lock-open {
+    -fx-fill: #bde7c7;
+}
+
 .editor-workspace-outline-panel {
     -fx-min-height: 0;
 }
@@ -686,6 +694,16 @@
     -fx-fill: #f2f6fb;
 }
 
+.editor-workspace-code-area .caret {
+    -fx-stroke: #ffd27a;
+}
+
+.editor-workspace-editor-surface {
+    -fx-background-color: #171c22;
+    -fx-border-color: #2a313c;
+    -fx-border-width: 1;
+}
+
 .editor-workspace-code-area-type-text .text {
     -fx-fill: #eef3f8;
 }
@@ -707,13 +725,43 @@
 }
 
 .editor-workspace-warning {
+    -fx-alignment: center-left;
+    -fx-spacing: 8;
     -fx-padding: 8 12 8 12;
     -fx-background-color: #3b2a10;
     -fx-border-color: #8f6730;
+    -fx-border-width: 0 0 1 0;
     -fx-text-fill: #f7ddb0;
     -fx-font-size: 12px;
 }
 
+.editor-workspace-warning-counter {
+    -fx-text-fill: #f3d8a7;
+    -fx-font-size: 11px;
+    -fx-font-weight: 700;
+}
+
+.editor-workspace-warning-button {
+    -fx-min-width: 24;
+    -fx-pref-width: 24;
+    -fx-max-width: 24;
+    -fx-min-height: 24;
+    -fx-pref-height: 24;
+    -fx-max-height: 24;
+    -fx-padding: 0;
+    -fx-background-color: #4b3413;
+    -fx-border-color: #9a7440;
+    -fx-text-fill: #f7ddb0;
+    -fx-font-size: 11px;
+    -fx-background-radius: 4;
+    -fx-border-radius: 4;
+}
+
+.editor-workspace-warning-button:hover {
+    -fx-background-color: #5a4018;
+    -fx-border-color: #b38749;
+}
+
 .workspace-dock-pane {
     -fx-collapsible: true;
     -fx-background-color: transparent;
@@ -753,6 +801,10 @@
     -fx-min-height: 0;
 }
 
+.editor-workspace-helper-summary {
+    -fx-text-fill: #dce6f0;
+}
+
 .workspace-dock-pane-collapsed {
     -fx-background-insets: 0;
 }
@@ -858,10 +910,17 @@
     -fx-max-width: 72;
 }
 
+.editor-workspace-status-chip-access-mode {
+    -fx-min-width: 36;
+    -fx-pref-width: 36;
+    -fx-max-width: 36;
+    -fx-padding: 0;
+}
+
 .editor-workspace-status-chip-read-only {
-    -fx-min-width: 88;
+    -fx-background-color: #3b2a10;
-    -fx-pref-width: 88;
+    -fx-border-color: #8f6730;
-    -fx-max-width: 88;
+    -fx-text-fill: #f7ddb0;
 }
 
 .editor-workspace-status-chip-editable {