v0.1.2-p.5

• Layer and master lists Fixed appearance of layer and master list UI in editing and text mode

v0.1.2-p.3

Repetition with no code changes of previous -p.2 release as it didn't appear to register with the built-in update mechanism.

v0.1.2-p.2

• Debug Fonts Don't emit debug fonts in production

v0.1.2

• Multi-Format Font Loading: Implemented opening of .glyphs and .vfj font format via Rust/WASM using babelfont-rs library. Added open_font_file() WASM function that detects file format by extension, loads via babelfont convertors, and returns babelfont JSON. File browser now automatically converts non-.babelfont files transparently, enabling direct import from Glyphs sources. Opening UFO/Designspace and .glyphspackages will have to wait until we have native file system access.
• Sidebearing Calculation API: Refactored measurement tool to use new Layer.getSidebearingsAtHeight(y?) private method. Provides cleaner architecture where each glyph calculates its own sidebearings (left/right distances from glyph edges to outline intersections) at a given Y height, with negative values for overhangs. Measurement rendering now calls this method per-glyph instead of performing bulk intersection calculations.
• Text Mode Master Selection: Added master list UI in text mode sidebar with animated location transitions and auto-selection. Click a master to animate HarfBuzz rendering to that master's location over 10 frames. Slider changes automatically select/deselect masters based on location match (0.5 tolerance). Measurement tool now requires master selection and uses selected master ID to match glyph layers.
• Layer Switch Animation Race Condition: Fixed issue where clicking a layer in the UI and immediately trying to edit would fail with "Cannot save interpolated layer data" warning. Problem was caused by an in-flight interpolation request from the layer switch animation completing AFTER the animation finished and overwriting the restored layer data with interpolated data (isInterpolated = true). Now checks interpolation state before applying interpolated data to prevent stale interpolation results from overwriting valid layer data.
• Synchronized Animation: Fixed out-of-sync animations in editing mode between HarfBuzz glyphs and interpolated outlines. HarfBuzz glyphs now update in sync with interpolated data by waiting for async interpolation to complete and using the returned location. Text mode continues to use synchronous HarfBuzz animation for smooth, immediate response.
• Live Interpolation Fixes: Fixed multiple issues with live interpolation and layer switching: (1) Escape key now properly restores previous layer state with correct animation, layer data loading, and layer selection via isLayerSwitchAnimating flag, (2) Layer selection UI now clears immediately when dragging slider after selecting a layer, (3) Auto-panning now works correctly during slider pulls, layer switches, and escape key restoration by properly capturing and clearing auto-pan anchors.
• Measurement Tool: Added Alt-key measurement tool in editing mode with crosshair cursor and intersection detection. Displays white dots at outline/component intersections with distance labels. Supports both crosshair mode (horizontal/vertical lines) and click-drag mode for arbitrary line measurements. Uses Layer.getIntersectionsOnLine() with automatic component resolution via parent chain navigation.
• MCP Development Server: Added Model Context Protocol (MCP) server for AI-assisted debugging and development monitoring. Captures console logs and runtime data via WebSocket transport, exposing them through MCP resources and tools for real-time inspection during development. Includes bidirectional communication for remote control via reload_webapp and execute_javascript tools.
• Nested Component Bugs: Fixed multiple critical bugs in nested component editing: (1) stale interpolated transforms persisted after exiting nesting levels causing incorrect positioning - now cleared on exit, (2) stale selections when entering components - now cleared before entry, (3) stale hover states when exiting - now cleared on exit and in clearAllSelections(), (4) getAccumulatedTransform() now fetches fresh layer data after layer switches instead of using stale stack data, (5) nested component double-click now performs hit detection immediately so further nesting doesn't require mouse movement.
• Intersection Detection: Implemented Layer.getIntersectionsOnLine() for calculating line-path intersections including both curve and line segments. Includes manual line-line intersection detection (bezier-js doesn't reliably detect these).
• Component Path Flattening: Added Component.getTransformedPaths() and Layer.getAllPaths() public methods for recursive component flattening with transform matrices. Component method automatically determines correct master by walking parent chain to Layer.
• Component Flattening: Added private Layer.flattenComponents() method that recursively flattens all components including nested components to any depth, respecting transformation matrices. Now correctly handles multi-master fonts by using master ID to find matching component layers instead of always using layer index 0. Updated to support component lookup when layerData is not pre-populated. Consolidated with bounding box calculation for cleaner code. Includes comprehensive unit tests using NestedComponents font to verify correct transformation including scaling (layer 2 has Y-axis scaled dieresis component).
• Python Object Representation: Added toString() methods to all Babelfont model classes (Font, Glyph, Layer, Path, Node, Component, Anchor, Guide, Axis, Master, Instance, Shape) for readable Python print() output. Objects now display as <Font "Family Name" 123 glyphs> instead of [object Object].
• Pinch-to-Zoom: Added trackpad pinch-to-zoom support for canvas with dedicated ZOOM_SPEED_PINCH setting (default: 0.01). Pinch gestures now zoom in/out at cursor position, separate from Alt+wheel behavior for better control.
• Keyboard Shortcuts Fix: Fixed canvas keyboard handling to allow browser shortcuts (Cmd+R, Cmd+T, Cmd+W, etc.) to work when canvas has focus. Only app-specific shortcuts are now intercepted, preventing default behavior.
• Mouse Hit Detection: Improved hit tolerance for components and glyphs by adding stroke-based hit testing. Components in edit mode, inactive glyphs in edit mode, and HarfBuzz-rendered glyphs in text mode now have expanded hit areas similar to nodes, making them easier to click and select.

v0.1.1a

• Canvas Zoom Fix: Fixed unwanted zoom-to-fit on every node drag. Zoom now only occurs on initial font load, not on subsequent auto-recompilations.
• Component Origin Markers: Added SHOW_COMPONENT_ORIGIN_MARKERS setting (default: false) to control visibility of component origin cross markers. Includes production override to ensure markers are hidden in production.
• Canvas UI Cleanup: Removed crosshair (coordinate system) and baseline drawings from canvas. Pan and Zoom labels now positioned at bottom left corner.
• Auto-Pan During Interpolation: Added automatic panning to keep glyph bbox center stable during slider movements and layer switches. Prevents glyphs from moving out of viewport when width changes during interpolation. Fixed auto-pan not working when clicking slider at random location by moving anchor clearing from mouseup to animation complete handler.
• Layer Selection Fix: Fixed layer data retrieval and display by (1) normalizing Babelfont's master dict format to _master field using property existence check to handle empty string master IDs, and (2) filtering fetchGlyphData() to only include layers with DefaultForMaster (excluding AssociatedWithMaster layers which are intermediate/alternate designs). This resolves issues where glyphs like 'e' showed multiple duplicate "wght:400" layers instead of one layer per master, and ensures correct layer selection.
• API Documentation Generator: Added downloadAPIDocs(), showAPIDocs(), and generateAPIDocs() functions to generate comprehensive Python-oriented API documentation for the Font Object Model. Documentation is auto-generated from the JavaScript classes via Pyodide introspection with auto-generated table of contents and cross-reference links between classes. Includes offline Node.js script (npm run generate-docs) to generate API.md for inclusion in the repo.
• Object Model Facade: Implemented JavaScript/TypeScript object model with getters/setters over babelfontJson. Classes (Font, Glyph, Layer, Path, Node, etc.) provide OOP interface without data duplication, enabling rich methods (e.g., path.insertNode()) and synchronous Python access via Pyodide's JsProxy. Exposed as window.currentFontModel. Fixed Path.nodes getter to parse babelfont-rs compact string format into node objects. Fixed LayerDataNormalizer and OutlineEditor to share node array references instead of creating copies, ensuring modifications through object model propagate to canvas renderer. Added python-post-execution hooks to automatically re-render canvas and schedule font recompilation after Python code execution.
• Live Component Interpolation: Implemented recursive component interpolation in Rust WASM. Components now interpolate correctly during live slider adjustment, matching Python's recursive fetchLayerData behavior. Unified layer data structure between interpolated and master layers.
• Live Interpolation: Fixed broken glyph interpolation in editor view after PR #8 TypeScript refactor by adding missing module import to bootstrap and restoring window.fontInterpolation global. Fixed node destructuring bug in LayerDataNormalizer. Fixed wobbly layer switching animations by implementing request numbering system that discards stale out-of-order interpolation responses arriving from web worker.
• Nested Components: Refactored to pre-populate component layerData recursively for simpler, unified data structure. Bounding box calculations include nested components.
• Auto-Zoom: Restored auto-zoom functionality when navigating between glyphs in edit mode via keyboard (Cmd+Left/Right arrows)
• Layer Switching: Fixed font recompilation not triggering after switching layers via keyboard (Cmd+Up/Down). Now properly calls autoSelectMatchingLayer() after animation completes.
• Hot Reload: Fixed webpack dev server hot reload by enabling script injection. Browser now automatically reloads after TypeScript recompilation.
• Production Settings: Added production override system to settings framework. SHOW_BOUNDING_BOX now defaults to false in production.

v0.1a

• Version Management: Automatic PWA cache versioning with update notifications
• Update Checks: Every 10 minutes and when window regains focus
• Update UI: Orange notification button with version number and release notes link in title bar
• Release Automation: release.sh script and GitHub Actions workflow for automated releases
• Bug Fixes: Fixed FontDropdownManager.updateDropdown() and service worker update notifications
• Editor: Completely redid canvas panning and zooming, see editor view info popup for details