go-gui-org/go-gui v0.27.0

v0.27.0 — Platform Parity, Performance & Lock Splitting

on GitHub

Added

• Platform parity: Save/Discard/Cancel close confirmations for unsaved changes, plus Windows system tray icon support.
• Dialog quit guard: quit requests are trapped when a modal dialog is visible, preventing accidental app termination.
• Tooling spec: automated linting, license checking, Renovate dependency management, and coverage reporting integrated into CI.
• CI hardening: race detector enabled, caching and cache-key rotation, deduplication, 800-line file-size gate, deadcode detection, go mod tidy check, fuzz-crash detection, and security scans (gosec).
• Shared native-platform glue: App native integration tests and extracted platform abstraction for backend consistency.

Changed

• Performance: eliminated hot-path heap allocations across layout calculation, gesture hit-testing, render command generation, and event dispatch. Two-pass allocation scrub.
• Lock splitting: animation lock separated from layout lock; w.mu scope narrowed to reduce contention.
• GPU backend consolidation: shared gpu package for vertex types and draw code reused across Metal, OpenGL, and SDL2 backends.
• Large-file refactoring: 14 files over 800 lines split into 32 focused files; datagrid dot-imports removed; markdown fetcher uses dependency injection.
• Dependencies: go-glyph bumped to v1.10.0, golangci-lint to v2.12, GitHub Actions to latest major versions.
• Test parallelization: tests now run concurrently; per-package coverage floors enforced in CI.

Fixed

• macOS: NSApp activated before window creation, fixing focus issues on launch.
• DataGrid: scroll position read from correct state map; UpdateView no longer clears idFocus on full rebuild.
• SVG: arcToCubic guarded against coincident endpoints (NaN from Inf*0/1).
• GPU: gpu.Vertex struct literals use keyed fields across all backends.
• Web backend: removed unused syscall/js import; restored strconv import.
• Build tags: drift corrected across source files and CHANGELOG.
• Animation: map data races fixed under concurrent access.
• Windows: __ms_vsscanf compat shim for MinGW GCC 15+; static builds and DLL alignment hardened; CI smoke test added.
• Security: 242 gosec issues resolved; G204 false positives suppressed on exec.Command calls; privacy audit and resource caps applied.
• CI: various workflow fixes — golangci-lint install path, tidy-check ordering, generate-check path/scope, coverage subshell, fuzz timeout.

Docs

• WebGPU backend documented as explored and rejected (2026-06).
• Roadmap updated with new features and Phase 2 progress.
• README, CONTRIBUTING, and docs trimmed of fluff.
• Dependencies.md regenerated; depsdoc generator added.
• Async DataGrid and custom shader cookbooks added.
• Platform matrix, form validation patterns, time-travel example test documented.
• Godoc improved on core types; subpackage analysis and widget cookbook added.