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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 <noreply@anthropic.com>
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Change modeline filename and cursor colors to indicate buffer
modification status, not just read-only/overwrite state.
Color scheme changes:
- White (#ffffff): Unmodified writeable buffer
- Green (#64aa0f): Modified writeable buffer (unsaved changes)
- Red (#f06a3f): Read-only buffer
- Gold (#c48702): Overwrite mode active
Previously: All writeable buffers were green regardless of modification
Now: White when clean, green when dirty (better visual feedback)
Implementation:
- Updated cj/buffer-status-colors in user-constants.el:
- Changed 'normal' → 'unmodified' (white)
- Added new 'modified' state (green)
- Updated state detection in modeline-config.el:
- Now checks (buffer-modified-p) before defaulting to unmodified
- Updated cursor color logic in ui-config.el:
- Same state detection as modeline for consistency
- Added after-change-functions hook for real-time updates
- Added after-save-hook to update on save
Priority order (highest to lowest):
1. Read-only (red) - takes precedence over everything
2. Overwrite mode (gold) - takes precedence over modified state
3. Modified (green) - buffer has unsaved changes
4. Unmodified (white) - default for clean writeable buffers
Tests:
- 18 comprehensive tests in test-ui-buffer-status-colors.el
- Tests state detection logic and priority order
- Tests color constant definitions and mappings
- Tests integration with cursor and modeline
- All tests passing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Performance improvement and new feature with full test coverage.
## Changes
### 1. Fix modeline line/column position lag (#A priority)
- Replace expensive line-number-at-pos with cached %l/%c format specifiers
- Enable line-number-mode explicitly for caching
- Result: Instant modeline updates, zero performance overhead
- Files: modules/modeline-config.el:81-83, modules/ui-config.el:53
### 2. Implement multi-level org sorting
- New function: cj/org-sort-by-todo-and-priority
- Sorts by TODO status (TODO before DONE) AND priority (A→B→C→D)
- Uses stable sorting: priority first, then TODO state
- Gracefully handles empty sections (no error)
- Bound to C-; o o (ordering → org sort)
- Files: modules/org-config.el:278-299, modules/custom-ordering.el:253,267
### 3. Comprehensive ERT test suite (12/12 passing)
- Normal cases: Mixed TODO/DONE, multiple of same type, same priority
- Boundary cases: Empty sections, single entries, no priorities
- Error cases: Non-org-mode buffer
- Test file: tests/test-org-sort-by-todo-and-priority.el
### 4. Testing improvements discovered
- Disable org-mode hooks to avoid package dependencies in batch mode
- org-sort-entries must be called from parent heading
- Preserve priority cookie in org-get-heading (t t nil t)
- Add condition-case to handle "Nothing to sort" gracefully
### 5. Minor cleanup
- Comment out chime-debug setting (org-agenda-config.el:267)
- Mark modeline lag task as DONE in todo.org
## Technical Details
Modeline optimization:
- line-number-at-pos is O(n) where n = current line
- %l and %c are O(1) lookups from cached values
Org sorting algorithm uses stable sort:
1. Sort by priority (A, B, C, D, unprioritized)
2. Sort by TODO status (preserves priority order within groups)
Result: TODO [#A], TODO [#B], DONE [#A], DONE [#B], etc.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Replaced mood-line with a custom, minimal modeline using only built-in
Emacs functionality to avoid native compilation issues.
**Architecture:**
- Named segment system using defvar-local for easy reordering
- Emacs 30 built-in right-alignment (mode-line-format-right-align)
- All segments marked as risky-local-variable for proper evaluation
**Features:**
- Color-coded buffer names (green=writeable, red=read-only, gold=overwrite)
- VC branch with git symbol (U+E0A0) and state-based coloring
- Position format: L:line C:col
- Help-echo tooltips on all segments
- Mouse click handlers for interactive actions
- String truncation in narrow windows (< 100 chars)
- Active-window-only display for branch and misc-info
**Interactive Actions:**
- Buffer name: mouse-1 = prev-buffer, mouse-3 = next-buffer
- Major mode: mouse-1 = describe-mode
- Git branch: mouse-1 = vc-diff, mouse-3 = vc-root-diff
**Bug Fixes:**
- Disabled async native compilation to prevent "Selecting deleted buffer" errors
- Fixed difftastic loading by changing :demand to :defer
- Abstracted buffer status colors to user-constants.el for reuse
Inspired by Prot's modeline design patterns.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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- Change `defcustom` to `defvar` for transparency variables.
- Improve error handling in `cj/set-frame-alpha`.
- Optimize cursor color update with efficient hooks.
- Defer `nerd-icons` loading for better startup performance.
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