fix(ui): Fix cursor color updates with post-command-hook

2025-11-14T08:25:19+00:00

The cursor color was not updating correctly when switching buffers or modifying files. The original implementation used window-buffer-change and other specific hooks, but these were insufficient and internal buffers were interfering with cursor color updates. Root cause: - Cursor color is global (one cursor for all of Emacs) - Previous hooks fired in internal buffer contexts (*Echo Area*, *temp*) - This caused cursor to be set to white (unmodified) even when in read-only buffers like dashboard Solution: - Use post-command-hook which runs after every command in current buffer - Ignore internal buffers (names starting with space) - Cache optimization prevents redundant set-cursor-color calls Behavior now: - Dashboard (read-only): Red cursor - Unmodified file: White cursor - Modified file: Green cursor - After save: White cursor Tests: - Added 9 integration tests in test-ui-cursor-color-integration.el - Tests verify hook installation, buffer switching, modification tracking - All 27 tests passing (18 unit + 9 integration) Integration tests catch issues that unit tests miss: - Unit tests verified state detection logic (✓) - Integration tests verify hooks fire at right times (✓ now) - Integration tests verify real buffer switching behavior (✓ now) Cleanup: - Removed debug code from init.el - Removed debug-cursor-color.el temporary file 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude

dotemacs.git/tests/test-ui-cursor-color-integration.el, branch v0.7.2

fix(ui): Fix cursor color updates with post-command-hook