prathamreet/featherMD

FeatherMD v1.5.0 introduces interaction design modernizations, native desktop capability improvements, and backend resource optimizations.

Performance and Engine Refactoring

• Event-Driven File Watcher: Replaced the async Tokio-based file watcher with the event-driven notify crate, reducing idle background CPU usage to 0%.
• Write Echo Suppression: Implemented a frontend isSaving flag to prevent redundant triple-IPC loops during file writes.
• HTML Escaping Optimization: Refactored the preview renderer to use regex-based HTML escaping, eliminating intermediate DOM allocations.
• CodeMirror Consolidation: Merged redundant EditorView.updateListener registrations and removed unnecessary requestAnimationFrame wrappers in change handlers.
• Theme Consolidated Stylesheet: Combined all ten distinct theme configuration files into CSS custom properties inside a single base.css file.

User Interface and Experience Upgrades

• Integrated Zoom Interaction:
  • Removed the legacy header font-size slider.
  • Implemented global Ctrl + Scroll zooming (from 8px to 36px font range).
  • Scaled CodeMirror line numbers gutter size to 0.85em to keep gutter size in sync with text zoom.
  • Added a standalone zoom percentage badge in the header that displays a "Reset" indicator on hover and resets the zoom level to 100% on click.
• Custom Unsaved Changes Modal: Replaced native browser dialogs with a custom confirmation modal supporting Esc to cancel, single-key shortcuts (S, N, C), keyboard hints, and capture-phase event listeners.
• Dropdown Menu Persistence: Modified Font, Theme, and Tab menus to stay open on clicks for faster selection, closing on mouse leave after a 180ms grace delay.
• Native Titlebar and Bounds: Added rectangular window controls and configured the window to launch hidden, revealing it only after window bounds are loaded and applied to prevent startup flicker.

Bug Fixes

• Startup Visibility: Added missing allow-show, allow-hide, and allow-set-focus capabilities permissions to resolve a launch bug where the window would flash and close.
• Window Controls Initialization: Moved titlebar button bindings to Phase 2 of the bootstrap pipeline after Tauri is initialized, resolving an issue where the minimize, maximize, and close buttons were inert.

Documentation

• PRD Update: Updated the Product Requirement Document to reflect the new modular architecture, revised performance budgets, and auto-updater configurations.
• README Cleanup: Updated the architecture map and purged obsolete local screenshot assets.