* Add typing hot path timing diagnostics
* Add stress workspace debug menu item
* Restore stress workspace preload debug path
* Reduce typing lag from sidebar re-evaluation and hitTest overhead
hitTest: gate divider/sidebar/drag routing to pointer events only,
avoiding two full view-tree walks per non-pointer event.
forceRefresh: replace per-keystroke ISO8601DateFormatter + FileHandle
I/O with dlog() in DEBUG builds.
TabItemView: replace @EnvironmentObject subscriptions with plain refs
and precomputed parameters, add Equatable conformance to skip body
re-evaluation when parent rebuilds with unchanged values. @self changed
re-evaluations dropped from 668 to 1 during rapid typing.
* Add typing-latency guardrail comments and CLAUDE.md pitfalls
Strategic comments on hitTest, TabItemView, and forceRefresh to prevent
future regressions. Adds typing-latency-sensitive paths to CLAUDE.md
pitfalls section so agents know the constraints before editing.
* Add workspace palette actions and fix release autosave typing guard
Add Move Up/Down/Top, Close Other/Above/Below, Mark Read/Unread to
Cmd+Shift+P command palette and a Workspace submenu in the menu bar.
Fix recordTypingActivity() being gated behind #if DEBUG, which prevented
release builds from honoring the typing quiet period in autosave.
* Add regression test for terminal notification click dismissal
* Dismiss terminal notifications on direct clicks
* Add regression for focused terminal notification ring
* Keep focused terminal notifications unread until click
* Verify direct notification dismiss triggers flash
* Use focus-flash path for direct notification dismiss
* Align notification dismiss flash with ring geometry
* fix: avoid NSTextView tracking loop in omnibar mouseDown (#917)
Replace the synthetic mouseUp timeout workaround with direct cursor
positioning via NSTextView.characterIndexForInsertion(at:). The previous
approach posted a fake mouseUp event via NSApp.postEvent after 3 seconds,
but the NSTextView tracking loop does not always dequeue events from the
application event queue when stuck in an infinite
NSTextLayoutManager.enumerateTextLayoutFragments cycle, so the hang
persisted.
The new approach bypasses super.mouseDown entirely when the field editor
is already active, positioning the cursor (or extending the selection
with Shift+click) without entering the tracking loop. Drag-to-select is
not supported in this code path, but for a single-line omnibar this is
an acceptable trade-off.
* fix: handle double-click, UTF-16 length, and shift-click anchor
Address review feedback:
- Forward double/triple-click events to editor.mouseDown(with:) to
preserve word and line selection without entering NSTextField's
tracking loop
- Use (editor.string as NSString).length instead of String.count for
NSRange clamping (NSRange uses UTF-16 indices)
- Track shift-click anchor independently via shiftClickAnchor property
to correctly handle bidirectional selection extension
* fix: reset shiftClickAnchor on keyDown to prevent stale anchor
Clear the shift-click selection anchor whenever a key is pressed, so
that keyboard navigation (arrow keys, Shift+arrow, Home/End, etc.)
properly invalidates the mouse-originated anchor. A subsequent
Shift+click will then use the current selection position as anchor
instead of a stale value from a prior mouse interaction.
* fix: reset shiftClickAnchor in performKeyEquivalent and on re-focus
Key equivalents (Cmd+A, Cmd+V, etc.) bypass keyDown and go through
performKeyEquivalent, so the anchor must also be cleared there.
Similarly, re-focusing the field (currentEditor() == nil path) should
reset the anchor since selectAll changes the selection state.
* Fix orphaned child processes when closing workspace tabs
When closing a workspace tab via the sidebar X button, child processes
(login → zsh → claude) survived as orphans because TabManager.closeWorkspace()
only removed the workspace from the tabs array without explicitly freeing
Ghostty surfaces. It relied on ARC to cascade deallocation, but SwiftUI views
and Combine publishers held references, delaying or preventing
ghostty_surface_free() (which sends SIGHUP) from ever running.
This adds explicit teardown on the workspace close path:
- TerminalSurface.teardownSurface(): idempotent method to free the Ghostty
runtime surface eagerly, matching the existing deinit logic
- TerminalPanel.close() now calls teardownSurface() to ensure SIGHUP is sent
- Workspace.teardownAllPanels() iterates all panels and closes them
- TabManager.closeWorkspace() calls teardownAllPanels() before removing
the workspace from the tabs array
* Harden workspace teardown and ownership checks
* Address follow-up teardown review feedback
---------
Co-authored-by: Lawrence Chen <54008264+lawrencecchen@users.noreply.github.com>
* Add markdown viewer panel with live file watching
Introduce a new PanelType.markdown that renders .md files in a dedicated
panel using MarkdownUI (SwiftUI), with live file watching via DispatchSource
so content auto-updates when the file changes on disk.
- New MarkdownPanel class with file system watcher (write/delete/rename/extend)
- New MarkdownPanelView with custom cmux theme (headings, code blocks, tables,
blockquotes, inline code, lists, horizontal rules, light/dark mode)
- Full workspace integration: SurfaceKind, creation methods, tab subscription
- Session persistence: snapshot/restore across app restarts
- V2 socket command: markdown.open (validates path, resolves workspace, splits)
- CLI command: cmux markdown open <path> with routing flags and help text
- Agent skill: skills/cmux-markdown/ with SKILL.md, openai.yaml, and references
- Cross-link from skills/cmux/SKILL.md to the new markdown skill
- SPM dependency: gonzalezreal/swift-markdown-ui 2.4.1
* Fix unreachable guard in markdown subcommand dispatch
Use looksLikePath() to distinguish subcommands from path arguments
so the guard can catch unknown subcommands and future subcommands
are parsed correctly.
* Use .isoLatin1 fallback instead of .ascii for encoding recovery
ASCII is a strict subset of UTF-8, so falling back to .ascii after
UTF-8 fails is dead code. Use .isoLatin1 which accepts all 256 byte
values and covers legacy encodings like Windows-1252.
* Mark fileWatchSource as nonisolated(unsafe) for deinit safety
deinit is not guaranteed to run on the main actor, so accessing
@MainActor-isolated storage is a data race under strict concurrency.
DispatchSource.cancel() is thread-safe, so nonisolated(unsafe) is
sufficient with a documented invariant that writes only occur on main.
* Fix file watcher reattach: retry loop with cancellation guard
- Replace one-shot 500ms retry with up to 6 attempts (3s total window)
so files that reappear after a slow atomic replace are picked up
- Add isClosed flag checked before each retry to prevent restarting
the watcher after close()/deinit
* Harden path validation in markdown.open command
Reject directories and non-absolute paths before panel creation
to prevent ambiguous behavior and generic downstream failures.
* Always reattach file watcher on delete/rename events
After an atomic save (delete old + create new), the DispatchSource still
points to the old inode. Previously we only reattached when the file was
unreadable, so successful atomic saves left the watcher on a stale inode
and live updates silently stopped. Now we always stop and reattach:
immediately if the new file is readable, via retry loop if not.
* Restore markdown panels even when file is missing at launch
MarkdownPanel already handles unavailable files gracefully (shows
'file unavailable' UI and retries via the reattach loop). Dropping
the panel on restore lost the user's layout for files that may
reappear shortly after (network drives, build artifacts, etc.).
* Harden markdown CLI parsing and startup reconnect behavior
---------
Co-authored-by: Lawrence Chen <54008264+lawrencecchen@users.noreply.github.com>
JavaScript-based find using TreeWalker + <mark> highlights with
match counter, next/previous navigation, and drag-to-corner overlay
matching the existing terminal find bar.
- BrowserFindJavaScript: JS generation for search/next/prev/clear
- BrowserSearchOverlay: SwiftUI overlay with IME-safe onSubmit
- BrowserSearchState: Observable state (needle/selected/total)
- TabManager routing: Cmd+F/G dispatches to browser when focused
- Visibility filter: skips script/style/hidden/aria-hidden elements
- Stale DOM guard: isConnected check in next/previous scripts
- Navigation cleanup: clears find on didFinish and didFailNavigation
Co-authored-by: Lawrence Chen <54008264+lawrencecchen@users.noreply.github.com>
