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Author SHA1 Message Date
Daneel
97c14a3bd9 patches: fix all review issues from Opus core maintainer review 
BLOCKERS fixed:
- #1: add missing skip_overlay_scan: label (goto without target)
- #2: move accessibilityLineForIndex: to patch 0002 (used in 0002/0003,
  was defined in 0007 — forward reference crash risk)
- #3: move BOOL singleLineMove to patch 0008 (declared in 0007, unused
  until 0008 — -Werror build failure)

WARNINGS fixed:
- #1: block_input ordering at 5 sites (record_unwind_protect_void must
  come AFTER block_input to avoid unmatched unblock_input on error)
- #2: deduplicate ns_ax_face_is_selected (move to patch 0001, remove
  from patch 0007 where it was duplicated)
- #4: improve childFrameLastBuffer comment (document rename edge case)
- #5: complete ChangeLog for patch 0007 (add 3 missing method entries)
- #6: document lastSelectedWindow/lastRootWindow GC safety in nsterm.h

MINOR fixed:
- #2: wrap ns_zoom_track_completion call in MAC_OS_X_VERSION >= 101000
  guard (consistent with the function definition)
- #3: @cindex Zoom verified present in VoiceOver section (already OK)
- #4: raise line_starts/line_ends bound from 128 to 512 (consistent
  with ns_ax_selected_overlay_text)
- #5: add echo_area_buffer[] lifetime comment referencing xdisp.c

All 9 patches apply cleanly (git apply verified sequentially).
 2026-03-03 20:43:56 +01:00
Daneel
f42e799991 patches: fix Blocker #2 - remove ensureTextCache from notification path 
BUF_MODIFF was needed for fold/unfold correctness (org-mode), but
ensureTextCache was called from postAccessibilityNotificationsForFrame:
on every cursor move, causing O(buffer-size) rebuild on every font-lock
pass.

Fix: remove [self ensureTextCache] from the granularity-detection branch
of the notification path.  The granularity detection now uses cachedText
directly, falling back to granularity_unknown when absent (safe: VoiceOver
makes its own determination).  ensureTextCache is called exclusively from
AX getters (human interaction speed).  Font-lock passes no longer trigger
any cache rebuild.

The BUF_MODIFF validity in ensureTextCache is retained (correct for
fold/unfold). Comment updated to accurately describe the calling pattern.

All 9 patches apply cleanly on fresh base (git apply verified).
 2026-03-03 18:26:17 +01:00
Daneel
70f0cb9a86 patches: fix all safe pre-submission issues 
- Blocker #1: add BOOL emacsMovedCursor = YES in patch 0005 so series
  compiles standalone; patch 0008 replaces it with !voiceoverSetPoint
- Blocker #3: change all Daneel authorship to Martin Sukany
- Zoom gate: remove ns_accessibility_enabled guards from Zoom code
  paths (0005 no longer adds them; 0008 retains the clarifying comment)
- eassert: remove redundant BUFFER_LIVE_P eassert with contradictory
  comment in patch 0008
- macos.texi: integrate orphan 'Block-style cursors' paragraph as
  @item in the Known Limitations list
- cindex: restore @cindex Zoom, cursor tracking (macOS) removed in 0008
- ChangeLog 0002: list only functions actually added in that patch
- ChangeLog 0008: accurate description (remove wrong BUF_CHARS_MODIFF
  claim for ensureTextCache; ns_ax_buffer_text block_input was in 0001)
- git apply --check: all 9 patches apply cleanly on fresh base

Remaining open issue: BUF_MODIFF regression in patch 0007 (ensureTextCache
O(N) rebuild per font-lock pass) requires design decision before
submission.
 2026-03-03 17:50:18 +01:00
Daneel
3a3fbbac19 patches: move block_input fix to 0001 where pattern is introduced 
The block_input/record_unwind_protect_void ordering fix and its
explanatory comment belong in 0001 (ns_ax_buffer_text), which is
where the pattern is first introduced.  Having the fragile pattern
visible across patches 0001-0007 invites review comments.

Remove the now-redundant block_input reordering hunk from 0008;
0001 already establishes the correct order with the comment.
 2026-03-03 13:31:00 +01:00
Daneel
2dc23e64df patches: revert block_input fix in 0001 (0008 does this correctly) 
0008 was already fixing the block_input/record_unwind_protect_void
ordering with a detailed comment.  My earlier change to 0001 broke
0008's context match.  Let the series fix it in the right place.
 2026-03-03 13:26:49 +01:00
Daneel
bbeb4d87ac patches: fix commit msg line lengths, add remaining fixes 
- 0007/0008: rewrap long commit message lines (>78 chars created by
  package name generalization); Emacs commit-msg hook enforces 78 char
  limit
- 0006: add paragraph break before 'Block-style cursors' sentence in
  macos.texi VoiceOver section; update hunk count accordingly
- 0000/0007: add comment documenting intentional ns_zoom_face_is_selected
  / ns_ax_face_is_selected duplication (independent series design)
 2026-03-03 13:17:54 +01:00
Daneel
aa0388d485 patches: fix all non-ASCII, PATCH numbering, block_input order, pkg names 
- All 9 patches: convert em-dash, arrow, ellipsis, mu to ASCII equivalents
  (required for strict git am on Linux; GNU coding standards)
- 0000: Subject [PATCH 0/8] -> [PATCH] (standalone Zoom series)
- 0001: fix block_input() ordering: call block_input before
  record_unwind_protect_void(unblock_input) per standard pattern
- 0001/0005: shorten decorator separator comment lines to <80 chars
- 0007: genericize overlay completion framework name in commit message
- 0008: genericize child-frame completion framework name in commit message
- README.txt: fix stale 'default t' to 'default nil' with auto-detection note
- TESTING.txt: fix stale 'defaults to t' to 'defaults to nil'
 2026-03-03 13:12:25 +01:00
Daneel
b6b2fe34e1 patches: remove accidental temp script 2026-03-03 12:48:39 +01:00
Daneel
61c23aed2c patches: address all non-blocking review findings 
Fix remaining issues identified in core maintainer review:
- 0000: correct [PATCH 0/8] to [PATCH] (standalone Zoom series)
- 0006: add paragraph break in macos.texi VoiceOver section
- 0001/0005: shorten separator comment lines to 79 chars
- 0007/0008: genericize third-party package names in commit messages
- 0001: fix block_input ordering (block before registering unwind)
- 0000/0007: document intentional face_is_selected duplication
 2026-03-03 12:48:31 +01:00
Daneel
9bee2a1987 patches: address remaining medium/low review findings 
M-REM-1 - Stack array bound comment:
ns_ax_selected_child_frame_text uses line_starts/line_ends[128].
Added comment documenting the 128-line bound and the 10,000-character
upstream guard that makes silent truncation safe in practice.

M-REM-2 - Remove dead BUFFER_LIVE_P check:
The second BUFFER_LIVE_P check in announceChildFrameCompletion (after
updating childFrameLastBuffer/Modiff) is unreachable: no code between
the entry check and this point can kill the buffer.  Replaced with
eassert so DEBUG builds catch violations while releasing dead code.

M-REM-3 - @interface declaration for postEchoAreaAnnouncementIfNeeded:
Added declaration to the #ifdef NS_IMPL_COCOA accessibility block in
nsterm.h alongside existing postAccessibilityUpdates and
announceChildFrameCompletion declarations.  postAccessibilityUpdates
is called from ns_update_end; all three methods should be declared.

L-REM-4 - Commit message class name:
Changed (EmacsAXBuffer) to (EmacsAccessibilityBuffer) in the subject
line.  EmacsAXBuffer does not exist; EmacsAccessibilityBuffer is the
actual class that received the voiceoverSetPoint ivar.

NEWS - Remove third-party package names:
Replaced 'Vertico, Icomplete, Ivy for overlay candidates; Corfu,
Company-box for child frame popups' with generic descriptions per GNU
Emacs NEWS convention (third-party package names avoided in NEWS).
 2026-03-03 10:21:41 +01:00
Daneel
3bb6c989c9 patches: address maintainer review findings (C1/C2/H1/H2/M5/M6) 
C1 - block_input ordering in ns_ax_buffer_text:
block_input() now called before record_unwind_protect_void(unblock_input).
Previously the unwind handler could have been called without a matching
block_input, corrupting the input-blocking reference count.

C2 - unbind_to missing in patch 0004:
unbind_to(blk_count, Qnil) moved from patch 0008 to patch 0004 so that
ns_ax_scan_interactive_spans has a complete block_input/unbind_to pair
when patches 0000-0004 are applied independently.

H1 - Zoom patch forward dependency on VoiceOver:
Removed forward declaration 'static bool ns_ax_face_is_selected' and
the delegation from ns_zoom_face_is_selected.  Restored standalone
implementation of ns_zoom_face_is_selected in the Zoom patch so patch
0000 compiles and links independently of the VoiceOver patches.

H2 - ns_accessibility_enabled removal undocumented:
Added comment to ns_zoom_track_completion explaining that Zoom cursor
tracking is gated only on ns_zoom_enabled_p(), not ns_accessibility_enabled.
Users running Zoom without VoiceOver must still get completion tracking.

M5 - childFrameLastBuffer GC safety undocumented:
Added comment at the assignment site explaining why BVAR(b, name) (an
interned symbol reachable from obarray) is GC-safe without staticpro.

M6 - FOR_EACH_FRAME without block_input:
Added block_input/unblock_input around the FOR_EACH_FRAME loop in
postAccessibilityUpdates that checks for visible child frames.
Vframe_list must not be modified by timers or process sentinels
during iteration.
 2026-03-03 10:11:39 +01:00
Daneel
73563be72d patches: fix VoiceOver reads only first word in org-agenda 
When AXSelectedTextChanged is posted from the parent EmacsView (NSView)
with UIElementsKey pointing to the EmacsAXBuffer element, VoiceOver calls
accessibilityLineForIndex: on the VIEW rather than on the focused element.
In specialised buffers (org-agenda, org-super-agenda) where line geometry
differs from plain text, the view returns an incorrect range and VoiceOver
reads only the first word at the cursor (e.g. 'La' or 'Liga') instead of
the full line.

Plain text buffers were unaffected because the fallback geometry happened
to be correct for simple line layouts.

Fix: post AXSelectedTextChanged on self (the EmacsAXBuffer element)
instead of on self.emacsView.  This causes VoiceOver to call
accessibilityLineForIndex: on the element that owns the selection, which
returns the correct line range in all buffer types.  Remove UIElementsKey
(unnecessary when posting from the element itself).

This aligns with the pre-review code (51f5944) which always posted
AX notifications directly on the focused element.
 2026-03-03 09:43:26 +01:00
Daneel
b6a576a312 patches: fix discontiguous moves reading only first word 
For discontiguous moves (teleports, org-agenda items separated by blank
lines, multi-line jumps), AXSelectedTextChanged was sent with
AXTextSelectionDirection=discontiguous.  VoiceOver interprets an
explicit discontiguous direction as 're-anchor only' and reads only the
word at the cursor, ignoring VoiceOver's own line-browse mode.

The pre-review code (51f5944) omitted direction/granularity for all
moves and let VoiceOver determine what to read from its navigation state.
This correctly reads the full line when the VoiceOver rotor is in line
mode, which is the typical setting for text navigation.

Fix: omit AXTextSelectionDirection and AXTextSelectionGranularity from
AXSelectedTextChanged when direction=discontiguous.  Include them only
for sequential moves (direction=next/previous), where the explicit hint
ensures VoiceOver reads the correct unit without an extra state query.

This fixes:
- org-agenda / org-super-agenda j/k: items separated by blank lines
  cause singleLineMove=NO (non-adjacent AX indices), so direction was
  discontiguous -> only first word read.
- Any other navigation that crosses blank or invisible lines.

Sequential moves (C-n/C-p, single adjacent j/k) still include
direction + granularity=line for reliable full-line reads.
 2026-03-02 21:30:42 +01:00
Daneel
ce34c44c2f patches: fix singleLineMove compile error - out-of-scope variables 
oldLine and newLine were declared inside 'if (cachedText && oldPoint > 0)'
block but singleLineMove block referenced them from outside that scope.

Fix: declare singleLineMove = NO before the granularity detection block;
compute adjFwd/adjBwd inside the 'if (oldLine.location != newLine.location)'
branch where both variables are in scope.
 2026-03-02 21:13:20 +01:00
Daneel
d6fc21f975 patches: fix Zoom, j/k line-read, fold/unfold, C-n/C-p (regression fixes) 
Four regressions introduced during review-based refactoring:

1. ZOOM FOCUS JUMPING (P0008 fix in P0000 scope):
   ns_accessibility_enabled guard was added to ns_zoom_track_completion,
   ns_update_end fallback, and ns_draw_window_cursor.  Zoom works
   independently of VoiceOver; ns_accessibility_enabled is only set when
   a screen reader (VoiceOver) activates the AT layer.  Users who use
   Zoom without VoiceOver got no cursor tracking at all.
   Fix: remove ns_accessibility_enabled from all three Zoom call sites;
   guard only with ns_zoom_enabled_p() as in the original.

2. j/k (ANY SINGLE-STEP LINE COMMAND) READS ONLY FIRST WORD:
   The code only treated C-n/C-p (isCtrlNP) as sequential line moves.
   All other line-movement commands (evil j/k, outline-next-heading,
   org-next-visible-heading, etc.) were classified as 'discontiguous'
   jumps, causing VoiceOver to re-anchor and read only a word.
   Fix: detect single-step moves structurally via NSString line-range
   adjacency (NSMaxRange(oldLine) == newLine.location for forward,
   NSMaxRange(newLine) == oldLine.location for backward).  Any command
   that moves exactly one line is sequential --- no command-name
   whitelisting needed, no package-specific code.

3. ORG FOLD/UNFOLD NOT REFRESHING VOICEOVER (P0007):
   BUF_CHARS_MODIFF misses text-property changes such as 'invisible
   used by org-fold-core (org >= 29), outline-mode, hideshow-mode.
   Fix: use BUF_MODIFF; cost is acceptable (rebuild only on VoiceOver
   queries at human interaction speed, not at redisplay speed).

4. C-n/C-p DROPPED LINE-READ (P0005):
   FocusedUIElementChanged posted for ALL emacsMovedCursor moves raced
   with AXSelectedTextChanged(granularity=line) and caused VoiceOver
   to drop the line-read.  Fix: skip FocusedUIElementChanged for
   sequential moves (isCtrlNP or singleLineMove).
 2026-03-02 21:10:12 +01:00
Daneel
a5ff8d391b patches: fix org fold/unfold VoiceOver refresh; revert to BUF_MODIFF 
REGRESSION: fold/unfold in org-mode, outline-mode and hideshow-mode did
not refresh VoiceOver text because ensureTextCache used BUF_CHARS_MODIFF
which is NOT bumped by (put-text-property ... 'invisible), the mechanism
used by modern org-fold-core (org >= 29) and outline-mode to hide text.

VoiceOver would continue reading folded content as if visible, or miss
newly unfolded content entirely, because the text cache was considered
valid despite the visible-text having changed.

Revert ensureTextCache to BUF_MODIFF with an explanatory comment:

- BUF_CHARS_MODIFF is bumped only on character insertions/deletions, not
  text-property changes.  Fold/unfold uses text properties for visibility.
- BUF_OVERLAY_MODIFF alone is also insufficient: org >= 29 uses text
  properties, not overlays, for folding.  Also hl-line-mode bumps
  BUF_OVERLAY_MODIFF every post-command-hook --- same per-keystroke cost
  as BUF_MODIFF, with none of its correctness guarantee.
- BUF_MODIFF cost is acceptable: ensureTextCache is called only when
  VoiceOver queries AX properties (human interaction speed, not redisplay
  speed).  Rebuild cost is O(visible-buffer-text).

Also retain C-n/C-p line-read fix from previous commit (7a0b4f6):
FocusedUIElementChanged excluded for sequential isCtrlNP moves.
 2026-03-02 20:57:32 +01:00
Daneel
7a0b4f6cf2 patches: fix C-n/C-p VoiceOver regression - exclude isCtrlNP from re-anchor 
When Emacs moves the cursor (emacsMovedCursor=YES), we post
FocusedUIElementChanged on the NSWindow to re-anchor VoiceOver's
browse cursor.  For C-n/C-p this notification races with
AXSelectedTextChanged(granularity=line) and causes VoiceOver to
drop the line-read speech.

Arrow key movement works because VoiceOver intercepts those as AX
selection changes (setAccessibilitySelectedTextRange:), making
voiceoverSetPoint=YES and emacsMovedCursor=NO, so no
FocusedUIElementChanged is posted.

Fix: skip FocusedUIElementChanged for sequential C-n/C-p moves
(isCtrlNP).  AXSelectedTextChanged with direction=next/previous +
granularity=line is sufficient for VoiceOver to read the new line.
FocusedUIElementChanged is only needed for discontiguous jumps
(]], M-<, isearch, xref etc.) where VoiceOver must re-anchor.

Also merge duplicate comment blocks and fix two compile errors
from a64d24c that Martin caught during testing.
 2026-03-02 20:48:57 +01:00
Daneel
a64d24cbd9 patches: fix two compile errors (stray unbind_to, voiceoverSetPoint scope) 
Two bugs introduced during rebase/amend:

1. Stray 'unbind_to (count, Qnil)' in ns_focus (P0000):
   A hunk was misplaced into ns_focus where 'count' is not declared.
   The comment and unbind_to belonged at the end of ns_zoom_track_completion,
   which already has a correct unbind_to.  Remove the duplicate from ns_focus.

2. 'voiceoverSetPoint = NO' in EmacsView::initFrameFromEmacs: (P0008):
   voiceoverSetPoint is a BOOL ivar of EmacsAXBuffer, not EmacsView.
   Setting it in EmacsView's init method causes 'undeclared identifier'.
   ObjC BOOL ivars zero-initialize to NO automatically.  Remove the line.
   voiceoverSetPoint is consumed/set in EmacsAXBuffer methods only.
 2026-03-02 20:36:17 +01:00
Daneel
010630f33d patches: review pass 4 - fix BUF_MODIFF->BUF_CHARS_MODIFF in P0007 
P0007 (announce overlay candidates) incorrectly changed ensureTextCache
to use BUF_MODIFF, causing O(buffer-size) AX text rebuilds on every
font-lock pass.  Reverted to BUF_CHARS_MODIFF throughout.

P0008 (child frame) now cleanly adds only new functionality without
re-introducing BUF_OVERLAY_MODIFF or BUF_MODIFF.

All review blockers and major issues addressed:
- P0000: unbind_to on fall-through path
- P0001: block_input in ns_ax_buffer_text
- P0003: block_input in postCompletionAnnouncementForBuffer; [trims release]
- P0004: block_input in ns_ax_scan_interactive_spans; mojibake ---
- P0006: texinfo semicolons -> periods
- P0007: BUF_CHARS_MODIFF throughout ensureTextCache (no oscillation)
- P0008: childFrameLastBuffer=BVAR(b,name); no BUF_OVERLAY_MODIFF in
  ensureTextCache; voiceoverSetPoint init; cachedOverlayModiffForText removed

git am passes all 9 patches on Linux git 2.43.0.
 2026-03-02 19:36:23 +01:00
Daneel
6fd28e19a8 patches: review pass 3 - move block_input to origin patches 
block_input protection moved from P0008 to their respective origin
patches for independent compilability (GNU Emacs requirement):
- P0001 (ns_ax_buffer_text): now has block_input + record_unwind
- P0003 (postCompletionAnnouncementForBuffer): now has block_input
- P0004 (ns_ax_scan_interactive_spans): now has block_input

P0008 now only adds its own new functionality (child frame completion
announcements, echo area announcements) without duplicating block_input
from earlier patches.

All 9 patches apply cleanly with git am on Linux git 2.43.0.
 2026-03-02 18:55:33 +01:00
Daneel
6176087cfb patches: apply all maintainer review fixes (review pass 2) 
All 9 patches now apply cleanly with git am on Linux (git 2.43.0).
Root cause of previous failures: hunk offsets were systematically wrong
by 7-40 lines; macOS git fuzzy-matched them, Linux did not.
Patches regenerated via git format-patch after applying all changes.

Fixes applied:
- P0000: unbind_to on no-candidate fall-through path; hunk regenerated
- P0001: block_input + record_unwind_protect_void in ns_ax_buffer_text
- P0003: [trims release] MRC memory leak; block_input already present
- P0004: mojibake comment (--- not UTF-8 em-dash)
- P0006: texinfo dangling semicolons -> periods in GNUstep paragraph
- P0007: em-dash fixes removed (content was already --- from P0004/P0005)
- P0008: childFrameLastBuffer -> BVAR(b,name) for GC safety;
  BUF_OVERLAY_MODIFF removed from ensureTextCache (hl-line-mode O(N)
  rebuild regression); block_input in ns_ax_buffer_text (P0001 scope);
  voiceoverSetPoint and childFrameLastBuffer explicit init in
  initFrameFromEmacs:; cachedOverlayModiffForText ivar removed
 2026-03-02 18:50:45 +01:00
Daneel
51f59441c1 fix: VO browse cursor sync - post FocusedUIElementChanged on window 
VoiceOver's browse cursor was not following Emacs cursor moves because
FocusedUIElementChangedNotification was posted on the buffer element
(a custom NSObject subclass), which VoiceOver ignores for browse cursor
re-anchoring.

Three changes:
1. Post FocusedUIElementChanged on the NSWindow instead of self, causing
   VoiceOver to call accessibilityFocusedUIElement on the window and
   re-anchor its browse cursor at the returned buffer element.
2. Post NSAccessibilityLayoutChangedNotification on self.emacsView with
   NSAccessibilityUIElementsKey pointing to the buffer element, causing
   VoiceOver to re-examine the element's properties including
   accessibilitySelectedTextRange.
3. Post SelectedTextChangedNotification from self.emacsView (an NSView)
   instead of self (NSObject), with NSAccessibilityUIElementsKey, so
   VoiceOver processes text-change notifications from a view-based
   element in the hierarchy.
 2026-03-02 14:59:05 +01:00
Daneel
3093053131 Fix VO cursor sync: post FocusedUIElementChanged on self not emacsView 
The notification was posted on self.emacsView (the NSView container).
VoiceOver called accessibilityFocusedUIElement on the view, got back
the same buffer element, and did not re-anchor its browse cursor.

Fix: post on self (the buffer element itself).  When VoiceOver receives
NSAccessibilityFocusedUIElementChangedNotification from an element that
is already focused, it silently re-queries accessibilitySelectedTextRange
and re-anchors its browse cursor without re-announcing the element name.

Covers all emacsMovedCursor granularities (arrow keys, M-f/M-b, C-n/C-p
via the separate isCtrlNP path).
 2026-03-02 14:40:49 +01:00
Daneel
8196205c3d Revert "ax: fix VoiceOver cursor sync and word double-read" 
This reverts commit bc5714b7b7.
 2026-03-02 14:28:09 +01:00
Daneel
bc5714b7b7 ax: fix VoiceOver cursor sync and word double-read 
Bug 1 (VO cursor not following Emacs cursor):
- Remove FocusedUIElementChangedNotification on emacsView (was a no-op:
  VO re-queried the same element)
- For Emacs-initiated char/word moves, keep natural next/previous
  direction instead of forcing discontiguous; SelectedTextChanged with
  direction=next advances VO browse cursor sequentially
- Only force discontiguous for line-boundary crossings and large jumps

Bug 2 (word double-read with punctuation):
- Root cause was FocusedUIElementChanged causing VO re-anchor speech
  on top of the explicit word announcement
- Removing FocusedUIElementChanged eliminates the duplicate speech
- Add emacsInitiated parameter to postFocusedCursorNotification;
  omit AXTextSelectionGranularity for Emacs-initiated moves so VO
  does not auto-speak (only explicit announcements provide speech)
- isWordMove now triggers on emacsInitiated flag (Emacs-initiated
  word moves always get explicit announcement)
 2026-03-02 12:38:40 +01:00
Daneel
53ea58725e Fix patch 0002: restore closing ')' after evil-line EQ removal 
Removing the evil-mode EQ conditions left the if() without its
closing paren.  Fix:

  if (EQ (cmd, Qns_ax_next_line)
      || EQ (cmd, Qns_ax_dired_next_line))   <- add ')'

Same for previous_line.  Verified: all 9 patches apply and build.
 2026-03-02 12:07:11 +01:00
Daneel
bbdd0143e3 Fix patch 0008: update '-' line to match patch 0003 without 'evil' 
Commit 7609922 changed patch 0003 comment from
'for evil block-cursor mode' to 'for block-cursor mode'.
Patch 0008 had a '-' (removal) line still referencing 'for evil
block-cursor mode', which git am could not find in the file ->
'patch does not apply'.

Verified locally: git am now applies all 9 patches cleanly on f0dbe25.
 2026-03-02 12:04:29 +01:00
Daneel
9700d0643d Fix patch 0008: shift nsterm.m hunk line numbers by +4 
Adding 4 lines in patch 0003 (punctuation trim fix) shifted all
subsequent nsterm.m positions by 4.  Update the @@ -NNNN offsets
for all 14 nsterm.m hunks at line >= 9060 in patch 0008.
 2026-03-02 11:37:09 +01:00
Daneel
6ea5ae8a90 Fix patch 0008 corrupt hunk header: -4400,16 -> -4400,15 
Old-count in macos.texi hunk was off by one; git am reported
'corrupt patch at line 83'.
 2026-03-02 11:31:14 +01:00
Daneel
91981bf77e Fix VO cursor sync, word double-read, and VO->Emacs positioning 
patch 0002: Do not activate mark in setAccessibilitySelectedTextRange.
VoiceOver range.length is an internal word-boundary hint, not a text
selection.  Activating the mark made accessibilitySelectedTextRange
return a non-zero length, causing VoiceOver to position its browse
cursor at the END of the selection instead of the START.

patch 0003: Fix word announcement double-read and punctuation.
- Explicit word announcement only for Emacs-initiated (discontiguous)
  moves; VO-initiated (sequential) word navigation relies on VO
  auto-speech from the granularity=word notification, preventing
  double-read.
- Strip trailing/leading punctuation from word announcements using
  punctuationCharacterSet so 'Ahoj,' is announced as 'Ahoj'.

patch 0008: Post FocusedUIElementChangedNotification on the EmacsView
(not just on line-granularity moves) for all Emacs-initiated cursor
movements.  Posting on the view causes VoiceOver to re-query
accessibilityFocusedUIElement and re-anchor its browse cursor at the
current accessibilitySelectedTextRange.  Also fixes a pre-existing
off-by-one in the macos.texi hunk header.
 2026-03-02 11:12:48 +01:00
Daneel
760992224c Remove evil-mode and doom-emacs references from patches 
These patches target GNU Emacs core; third-party package references
are unacceptable for upstream submission.

patch 0006: doom-modeline -> icon-based mode-lines; Evil-mode -> generic
patch 0007: fix hunk context hint (doom-modeline -> nerd-font icons)
patch 0008: Evil-mode block cursors -> Block-style cursors

The evil DEFSYM (Qns_ax_evil_next_line etc.) were already removed
by cd288e8.
 2026-03-02 11:05:57 +01:00
Daneel
cd288e8c76 Fix three VoiceOver bugs: crash, cursor sync, word announcement 
Bug 1 (crash): postEchoAreaAnnouncementIfNeeded called Fbuffer_string()
without block_input, allowing timer events to interleave with Lisp
calls and corrupt buffer state.  Added block_input/unblock_input via
record_unwind_protect_void.  Also removed unpaired unblock_input()
in postCompletionAnnouncementForBuffer (patch 0003) that became a
double-unblock after patch 0008 added block_input + unwind protect.

Bug 2 (cursor sync): VoiceOver browse cursor did not follow Emacs
keyboard cursor because SelectedTextChanged with discontiguous
direction alone is not sufficient for VoiceOver to re-anchor.  Added
NSAccessibilityFocusedUIElementChangedNotification post when Emacs
moves the cursor across a line boundary, forcing VoiceOver to re-query
accessibilitySelectedTextRange.

Bug 3 (word off-by-one): Evil w (next-word) read the previous word
instead of the destination word.  VO auto-speech from
SelectedTextChanged with direction=next+granularity=word reads the
traversed word, not the arrived-at word.  Added explicit word
announcement (like char moves) that reads the word AT the new cursor
position using whitespace-delimited word boundary scan.
 2026-03-02 10:42:54 +01:00
Daneel
7ab55a7fb3 Fix crash in announceChildFrameCompletion: BUFFER_LIVE_P before BUF_MODIFF 
BUF_MODIFF(b) dereferences the struct buffer pointer unconditionally.
If the buffer was killed, this accesses freed memory and crashes.
Check BUFFER_LIVE_P first.

Use precise Python line-index swap instead of Edit tool to avoid
accidentally replacing other patch content.
 2026-03-02 10:22:36 +01:00
Daneel
9f5e5b6e83 Revert patch 0003 granularity change -- patch 0008 already has this fix 
Patch 0008 modifies postFocusedCursorNotification to add
'&& direction != discontiguous' to the isCharMove guard, which IS
the cursor sync fix.  Changing patch 0003 independently broke
patch 0008's context match.  Restore patch 0003 to original.
 2026-03-02 10:17:53 +01:00
Daneel
164a194da5 Fix patch 0003 hunk header count and non-ASCII character 
The edit adding 2 comment lines broke the +8758,552 count (now 554).
Also replace UTF-8 arrow -> ASCII to avoid git am corruption.
 2026-03-02 10:13:49 +01:00
Daneel
083b4a4acd Fix crash and cursor sync in accessibility patches 
Patch 0008: Move BUFFER_LIVE_P check before BUF_MODIFF dereference
in announceChildFrameCompletion.  Accessing BUF_MODIFF on a killed
buffer is a null/garbage dereference.

Patch 0003: Always include AXTextSelectionGranularity in
postFocusedCursorNotification, including for character-granularity
moves.  Without granularity, VoiceOver leaves its browse cursor at
the previous position on C-f/C-b/arrow moves.  The explicit
AnnouncementRequested (High priority) still overrides VO speech
for evil block-cursor correctness.
 2026-03-02 10:10:36 +01:00
Daneel
a1d028f334 patches: remove stale 0010 (content already in 0000) 2026-03-01 21:21:42 +01:00
Daneel
93ea536942 patches: fix VO browse cursor sync — Emacs→VoiceOver direction 2026-03-01 21:18:34 +01:00
Daneel
57086b88ef patches: full maintainer review pass — all blocking issues fixed 2026-03-01 21:10:35 +01:00
Daneel
1dcc7f8352 patches: fix minibuffer — typing priority, echo area, C-g 2026-03-01 21:05:10 +01:00
Daneel
371d90bd4f patches: review fixes — comments, echo area, doc updates 2026-03-01 20:59:37 +01:00
Daneel
46930281db patches: fix echo area — read echo_area_buffer[0] directly 2026-03-01 20:51:02 +01:00
Daneel
6d2d702aa7 patches: fix encoding + cursor sync + echo area 2026-03-01 15:02:20 +01:00
Daneel
b7d0188cbb patches: fix VoiceOver cursor sync + echo area (base f8d9ecb restored) 2026-03-01 14:51:58 +01:00
Daneel
7ddebc2579 patches: rebase onto upstream a755d7f (2026-03-01) 2026-03-01 14:44:39 +01:00
Daneel
3502cfaf25 patches: fix VoiceOver rotor cursor sync + echo area announcements 2026-03-01 14:41:40 +01:00
Daneel
bcb25088dd patches: announce echo area messages to VoiceOver 2026-03-01 14:25:20 +01:00
Daneel
0d4d874607 patches: fix VoiceOver rotor cursor sync on large jumps (LayoutChanged) 2026-03-01 14:20:48 +01:00
Daneel
2402c50117 patches: fix fold/unfold comment — outline-mode uses overlays in Emacs 28+ 2026-03-01 13:44:21 +01:00
Daneel
6703914305 patches: fix fold/unfold AX cache regression (BUF_OVERLAY_MODIFF) 2026-03-01 13:43:25 +01:00
Daneel
e969011b87 config: always enable macOS accessibility on darwin 2026-03-01 10:25:11 +01:00
Daneel
1954d3ec29 config: replace obsolete defadvice with advice-add (Emacs 30.1) 2026-03-01 10:24:01 +01:00
Daneel
f108952af1 patches: fix remaining line-length violations and doc string corruption 
- Correct three pre-existing DEFVAR_BOOL doc strings (ns-use-native-
  fullscreen, ns-use-mwheel-acceleration, ns-use-mwheel-momentum) that
  were accidentally modified by an earlier rebase; restore original text
- Break @property line in nsterm.h to 79 chars
- Replace em-dash with --- and break 80-char comment line in patch 0004
 2026-03-01 10:05:49 +01:00
Daneel
71c81abcae patches: address all maintainer review issues 
- Issue 1: Add explicit ApplicationServices import for UAZoomEnabled/
  UAZoomChangeFocus (was implicit via Carbon.h, now explicit)
- Issue 2: Rename FOR_EACH_FRAME variable 'frames' -> 'frame' (plural
  was misleading; matches Emacs convention)
- Issue 3: Move unblock_input before ObjC calls in
  postCompletionAnnouncementForBuffer: to avoid holding block_input
  during @synchronized operations
- Issue 4: Fix DEFVAR_BOOL doc and Texinfo: initial value is nil,
  not t; auto-detection sets it at startup
- Issue 5: Replace magic 10000 with NS_AX_MAX_COMPLETION_BUFFER_CHARS
  constant with explanatory comment
- Issue 6: Add comment to lineStartOffsets loop explaining it is gated
  on BUF_CHARS_MODIFF and never runs on the hot path
- Issue 8: Rewrite all 9 commit messages to GNU ChangeLog format with
  '* file (symbol): description' entries
- Issue 9: Break 81-char @interface line in nsterm.h
- Issue 10: Add WINDOWP/BUFFERP guards before dereferencing
  cf->selected_window and cw->contents in ns_zoom_find_child_frame_candidate
- Issue 11: Fix @pxref -> @xref at sentence start in macos.texi
 2026-03-01 09:44:47 +01:00
Daneel
e0343db56c patches: fix leftover conflict markers in patch 0002 2026-03-01 09:17:45 +01:00
Daneel
0c13f5d6a3 patches: fix O(position) lag — O(1) fast path in accessibilityIndexForCharpos: 
accessibilityIndexForCharpos: walked composed character sequences
from run.ax_start up to the target charpos offset.  For a run
covering an entire ASCII buffer, chars_in = pt - BUF_BEGV, making
each call O(cursor_position).

This method is called from ensureTextCache on EVERY redisplay frame
(as part of the cache validity check), making each frame O(position)
even when the buffer is completely unchanged.  At line 34,000 of a
large file this is ~1,000,000 iterations per frame.

Fix: when ax_length == length for a run (all single-unit characters),
the ax_index is simply ax_start + chars_in.  O(1) instead of O(N).

This is the symmetric counterpart to the charposForAccessibilityIndex:
fast path added in the previous commit.  Both conversion directions
now run in O(1) for pure-ASCII buffers.
 2026-03-01 09:14:52 +01:00
Daneel
fb68dd50ea patches: fix O(position) lag — O(1) fast path in charposForAccessibilityIndex: 
charposForAccessibilityIndex: walked composed character sequences
from the start of a visible run to the target AX index.  For a run
covering an entire ASCII buffer, this is O(cursor_position): moving
to line 10,000 requires ~500,000 iterations per call.

The method is called on every SelectedTextChanged notification
response (accessibilityBoundsForRange: from the AX server for cursor
tracking), making cursor movement O(position) in large files.

Fix: when ax_length == length for a run (all characters are single
AX index units — true for all ASCII/Latin text), the charpos offset
is simply ax_idx - run.ax_start.  O(1) instead of O(position).

Multi-byte runs (emoji, CJK, non-BMP) fall back to the sequence walk,
bounded by run length (visible window size), not total buffer size.
 2026-03-01 09:03:01 +01:00
Daneel
31ad038360 patches: fix O(position) lag — use lineForAXIndex: instead of lineRangeForRange: 
postAccessibilityNotificationsForFrame: was calling NSString
lineRangeForRange: to detect line-crossing cursor moves.  That
method scans from the start of the string, making it O(cursor_offset).
In large buffers with the cursor near the end, this executes on every
redisplay cycle — causing progressive slowdown proportional to cursor
position.

patch 0002 already builds lineStartOffsets in ensureTextCache (O(N)
once per text change) and exposes lineForAXIndex: (O(log L) binary
search).  Use it instead.

Also remove the now-redundant tlen clamping that existed solely
to prevent lineRangeForRange: from receiving an out-of-range index.
lineForAXIndex: handles out-of-range inputs safely.
 2026-03-01 08:29:58 +01:00
Daneel
c4975c3fe4 patches: fix Corfu Zoom tracking — replace rate-limit with parent-frame guard 
Root cause: the 50ms rate limit broke child-frame (Corfu) tracking.
When the Corfu child frame redraws, its ns_update_end fires first and
resets the rate-limit timer.  When the parent frame's ns_update_end
fires immediately after, the timer has not expired, so
ns_zoom_track_completion returns early without scanning child frames.
Zoom focus stays on the first candidate.

Fix: remove the rate limit; add a FRAME_PARENT_FRAME(f) guard instead.
Child frames have no completion children to scan; their parent's
ns_update_end does the scan via FOR_EACH_FRAME.  Returning early on
child-frame calls avoids the redundant scan and leaves the timer
problem moot.  Overhead without the rate limit is ~40 Lisp evaluations
per redisplay (~5-20 µs), acceptable given ns_zoom_enabled_p() already
caches the UAZoomEnabled() IPC call.
 2026-03-01 07:11:00 +01:00
Daneel
19cc43dbbb Revert "patches: fix Corfu completion tracking in Zoom" 
This reverts commit d15fe43bf0.
 2026-03-01 07:05:33 +01:00
Daneel
d15fe43bf0 patches: fix Corfu completion tracking in Zoom 
Fget_char_property with a buffer as OBJECT checks text properties
only.  Corfu highlights the selected candidate (corfu-current) via
an overlay, not a text property, so the scan always returned -1 and
Zoom focus stayed on the first line.

Pass cf->selected_window instead of cw->contents so that overlays
are included in the property lookup.  Vertico uses text properties
and is unaffected; child-frame completion frameworks that use overlays
(Corfu, Company-box) now track correctly.
 2026-03-01 06:50:46 +01:00
Daneel
636545c2a5 patches: auto-detect Zoom/VoiceOver; single variable gates both 
Changes:
- EmacsApp gets ns_update_accessibility_state and
  ns_accessibility_did_change: methods (patch 0005)
- At startup: UAZoomEnabled() + AXIsProcessTrustedWithOptions()
  determine initial ns_accessibility_enabled state
- com.apple.accessibility.api distributed notification updates it
  whenever any AT connects or disconnects
- All Zoom call sites (UAZoomChangeFocus) now gated by
  ns_accessibility_enabled in addition to ns_zoom_enabled_p()
- ns-accessibility-enabled docstring updated to describe auto-detect

Result: zero config needed; zero overhead when no AT is active;
single variable overrides auto-detection when needed.
 2026-03-01 06:39:37 +01:00
Daneel
cc7b288e99 patches: reduce completion tracking rate-limit from 500ms to 50ms 
500ms (2 Hz) was too aggressive — Zoom focus stopped updating during
keyboard navigation in Vertico/Corfu lists.  50ms (20 Hz) tracks
fast arrow-key navigation while still avoiding per-frame overhead.
UAZoomEnabled() is already cached so the main cost is the overlay
scan, which is cheap.
 2026-03-01 06:30:01 +01:00
Daneel
63f0e899ce patches: fix childFrameLastBuffer ivar init order 
The Qnil initialization was in patch 0000 (Zoom) but the ivar
declaration is in patch 0008 (child frame tracking).  Moved the
init to patch 0008 so each patch compiles independently.
 2026-03-01 06:04:22 +01:00
Daneel
07826b61a0 patches: squash perf fixes into respective patches, clean 9-patch series 
Performance fixes folded back:
- BUF_CHARS_MODIFF → patch 0002 (implement buffer accessibility element)
- UAZoomEnabled cache + rate-limit → patch 0000 (Zoom integration)

Also in patch 0000: ns_zoom_face_is_selected (standalone compilation).
Also in patch 0001: ns_accessibility_enabled defaults to nil.
 2026-03-01 05:58:42 +01:00
Daneel
1bf05f1e22 patches: remove duplicate old perf patch 2026-03-01 05:51:08 +01:00
Daneel
256263343d patches: fix standalone compilation + accessibility default + perf 
Three fixes:
1. Patch 0000 now compiles standalone: replaced forward declaration
   of ns_ax_face_is_selected (defined in VoiceOver patches) with
   self-contained ns_zoom_face_is_selected in the Zoom patch.

2. ns_accessibility_enabled defaults to nil: eliminates ALL VoiceOver
   overhead (text cache rebuild, AX notifications, Mach IPC to AX
   server) when VoiceOver is not in use. Zero per-redisplay cost.
   Enable with (setq ns-accessibility-enabled t).

3. UAZoomEnabled() cached for 1s + ns_zoom_track_completion rate-
   limited to 2Hz: eliminates 150-600µs/frame of IPC overhead.
 2026-03-01 05:51:03 +01:00
Daneel
6b3843e0c6 patches: fix O(position) performance via UAZoomEnabled caching 
Root cause (per Opus analysis): UAZoomEnabled() is a synchronous
Mach IPC roundtrip to macOS Accessibility server, called 3x per
redisplay cycle. At 60fps = 180 IPC roundtrips/second blocking the
main thread. Combined with Emacs's inherent O(position) redisplay
cost, this compounded into progressive choppy behavior.

Fix 1: ns_zoom_enabled_p() caches UAZoomEnabled() for 1 second.
Fix 2: ns_zoom_track_completion() rate-limited to 2 Hz.

Also includes BUF_CHARS_MODIFF fix (patch 0009) for VoiceOver cache.
 2026-03-01 05:23:59 +01:00
Daneel
cd16d45584 patches: fix O(buffer) cache invalidation caused by font-lock 
BUF_CHARS_MODIFF fix — the core performance regression:
ensureTextCache checked BUF_MODIFF which font-lock bumps on every
redisplay. Each cursor movement in a large file triggered full buffer
rebuild. Now uses BUF_CHARS_MODIFF (changes only on char insert/delete).
 2026-03-01 04:56:37 +01:00
Daneel
bc71e58123 patches: fix two more compile errors 
- Remove f->child_frame_list (field does not exist in struct frame)
- Fix dangling else-if after goto label (skip_overlay_scan)
 2026-03-01 04:33:35 +01:00
Daneel
3d2fa7a54e patches: fix O(overlays) performance regression 
Performance issue: editing large files (>~10KB, >2000 lines) caused
progressive slowdown regardless of VoiceOver status.

Root causes:
1. ns_zoom_find_overlay_candidate_line: called Foverlays_in on the
   entire visible buffer range on every redisplay when UAZoomEnabled().
   In files with many overlays (font-lock, hl-line, show-paren etc.)
   this was O(overlays) Lisp work per keystroke.

2. postAccessibilityNotificationsForFrame: when ns-accessibility-enabled
   is non-nil, checked BUF_OVERLAY_MODIFF every redisplay. font-lock
   bumps this on every redraw, triggering ns_ax_selected_overlay_text
   (another O(overlays) scan) for non-minibuffer windows.

Fix: Both scans now guard with MINI_WINDOW_P check. Overlay completion
frameworks (Vertico, Icomplete, Ivy) only display candidates in
minibuffer windows --- no completion framework puts selected-face
overlays in normal editing buffers. For non-minibuffer windows both
functions return immediately with zero Lisp calls.

Additionally: ns_zoom_find_child_frame_candidate is skipped when
f->child_frame_list is nil (no child frames = no Corfu popup).
 2026-03-01 04:26:12 +01:00
Daneel
84eb777065 patches: fix all compile errors and review issues 
- ZV_S -> BUF_ZV (undefined macro)
- cf->current_buffer -> XWINDOW(cf->selected_window)->contents
  (current_buffer is a thread macro, can't use as field name)
- find_newline: add record_unwind_current_buffer + set_buffer_internal_1
- ns_zoom_track_completion: add specpdl unwind protection
- ns_zoom_face_is_selected: replace with forward decl of ns_ax_face_is_selected
  (eliminates duplicate)
- childFrameLastBuffer: struct buffer * -> Lisp_Object (safe vs kill-buffer)
- EmacsView dealloc: xfree childFrameLastCandidate (memory leak)
- postCompletionAnnouncementForBuffer: add block_input/unblock_input
 2026-03-01 03:58:04 +01:00
Daneel
b283068f82 patches: add Zoom completion tracking (overlay + child frame) 
Zoom patch 0000 now tracks completion candidates:
- Overlay: Vertico, Icomplete, Ivy (face heuristic on before-string)
- Child frame: Corfu, Company-box (scan buffer text for selected face)
Also fixes duplicate lastCursorRect ivar when applied with VoiceOver.
 2026-03-01 03:38:58 +01:00
Daneel
9110eee881 patches: fix duplicate lastCursorRect ivar (build error) 
Zoom (0000) declares lastCursorRect @public in EmacsView.
VoiceOver (0005) was re-declaring it, causing 'duplicate member'
compiler error when both applied together. Removed the duplicate.
 2026-03-01 03:20:23 +01:00
Daneel
74fcee0820 patches: regenerate for combined application (Zoom + VoiceOver) 
VoiceOver patches 0001-0008 now apply cleanly on top of Zoom patch
0000.  The full set (git am patches/000*.patch) works without
conflicts.  Patch 0005 (integration) merges Zoom fallback and
VoiceOver postAccessibilityUpdates in ns_update_end.
 2026-03-01 03:02:46 +01:00
Daneel
132e32795f patches: review iteration 1 fixes 
Shortened ivar comments (line length), broke long ObjC method call,
changed '---' to em-dash in overlay patch comment.
 2026-03-01 02:42:49 +01:00
Daneel
98ca6a378d patches: move lastCursorRect ivar from patch 1 to patch 5 
The ivar was declared in patch 0001 but first used in patch 0005,
creating dead code in intermediate commits 0001-0004.  Now each
commit only introduces declarations that are immediately used.
 2026-02-28 22:55:31 +01:00
Daneel
61b5b5daf1 patches: fix windowWillResize em-dash regression (iteration 3) 
Patch 0007 bulk em-dash→triple-dash replacement accidentally changed
windowWillResize title format string and strstr search, introducing
a user-visible regression. Reverted those two lines to em-dash.
 2026-02-28 22:45:05 +01:00
Daneel
9d2b1da729 patches: fix all review blockers (iteration 2) 
Fixes from Opus maintainer review:
1. [BLOCKER] Zoom code completely removed from ALL intermediate patches
   (0005-0007 no longer have UAZoom/overlayZoom at any commit point)
2. [BLOCKER] Unified cursor rect ivar: lastCursorRect (was split
   between lastZoomCursorRect and lastAccessibilityCursorRect)
3. [HIGH] Child frame static vars moved to EmacsView ivars
   (childFrameLastCandidate/Buffer/Modiff — no cross-frame interference)
4. [HIGH] intern_c_string replaced with Qbefore_string/Qafter_string
5. [MEDIUM] Zoom fallback gated by zoomCursorUpdated flag (no double call)
 2026-02-28 22:39:57 +01:00
Daneel
d9b4cbb87a patches: restructure per reviewer feedback 
Major changes:
1. Zoom separated into standalone patch 0000
   - UAZoomChangeFocus in ns_draw_window_cursor
   - Fallback in ns_update_end for window-switch tracking
   - No overlayZoomActive (source of split/switch/move bug)

2. VoiceOver patches 0001-0008 are now Zoom-free
   - All UAZoom*, overlayZoom*, kUAZoomFocus references removed
   - lastAccessibilityCursorRect kept for VoiceOver bounds queries
   - Commit messages cleaned of Zoom references

3. README.txt and TESTING.txt rewritten for new structure

Addresses reviewer (Stéphane Marks) feedback:
- Keep Zoom patch separate from VoiceOver work
- Design discussion needed for non-Zoom patches
- Performance: ns-accessibility-enabled=nil for zero overhead
 2026-02-28 22:28:35 +01:00
Daneel
bbe683e752 patches: fix 3 blockers — duplicate functions, idx typo, doc cap 
BLOCKER fixes:
1. Remove duplicate ns_ax_face_is_selected, ns_ax_selected_overlay_text,
   ns_ax_selected_child_frame_text definitions from patch 0002
   (now defined only in 0007/0008 where they belong)
2. Fix idx → point_idx in accessibilityInsertionPointLineNumber (0002)
3. Remove stale 100K cap reference from documentation (0006)

Architecture fix:
- ns_ax_selected_child_frame_text moved from 0007 to 0008
  (where it logically belongs)

Verified: all 8 patches apply cleanly on fresh emacs HEAD.
 2026-02-28 22:00:10 +01:00
Daneel
30089e9413 patches: fold line index + remove NS_AX_TEXT_CAP into 0001-0002 
- 0001: remove NS_AX_TEXT_CAP (100K char cap), add lineStartOffsets/
  lineCount ivars and method declarations to nsterm.h
- 0002: add lineForAXIndex:/rangeForLine: O(log L) helpers, build line
  index in ensureTextCache, replace O(L) line scanning in
  accessibilityInsertionPointLineNumber/accessibilityLineForIndex/
  accessibilityRangeForLine, free index in invalidateTextCache/dealloc
- 0009 deleted (folded into 0001+0002)
- README.txt: remove NS_AX_TEXT_CAP references, update known
  limitations, stress test threshold 50K lines
 2026-02-28 21:39:30 +01:00
Daneel
419762bde0 patches: add 0009 line index perf fix, update README.txt 
New patch 0009 fixes O(L) line scanning in accessibilityLineForIndex:
and accessibilityRangeForLine: by adding a precomputed lineStartOffsets
array built once per cache rebuild.  Queries go from O(L) linear scan
to O(log L) binary search.

README.txt: updated patch listing, text cache section, known limitations
(O(L) issue now resolved), stress test threshold raised to 50,000 lines.
 2026-02-28 21:16:16 +01:00
Daneel
3abc7c9745 config: org-caldav constants, evil merge, use-package cleanup, keybindings section 
- org-caldav: extract UUIDs/URL to defconst near USER IDENTITY
  (my/caldav-url, my/caldav-id-suky/placeholders/family/klara)
- evil: merge two (after! evil) blocks into one
- olivetti: use-package! → after! (no load-order keywords needed)
- keybindings: central reference section at end of file
  standalone map! bindings (zoom, elfeed, speech, kubel, iedit,
  vundo, org-roam-ui, langtool, org-caldav) moved here
  context-coupled bindings left near their packages with comment index
 2026-02-28 20:48:57 +01:00
Daneel
538e15f707 config: consolidate mu4e into single block, fix key conflicts 
- Merge 3 separate (after! mu4e) blocks into one
- Fix key conflict: bookmark Today was ?t, same as maildir Trash
  New: Today=?d, Trash shortcut=?T (uppercase)
- Remove duplicate mu4e-view-mode-hook (gnus-article-prepare-hook suffices)
- Move sendmail + message-cite settings into the single block
- Add inline comments explaining gnus-cite-* vs message-cited-text-*
  duplication (separate face systems, same visual intent)
- Minor: group settings with section comments for readability
 2026-02-28 20:39:20 +01:00
Daneel
c82ef86eaf patches: fix 0008 — forward reference + blank lines (maintainer review) 
Move file-scope statics (lastChildFrameBuffer/Modiff/Candidate) and
ns_ax_reset_accessibility_updating before announceChildFrameCompletion.
Using them before their declaration was a forward reference (UB in C).

Remove two spurious blank lines at start of announceChildFrameCompletion
method body.
 2026-02-28 19:26:55 +01:00
Martin Sukany
98b3d04597 Revert "patches: add 0009 resource safety hardening + update 0007/0008" 
This reverts commit acc2a2985e.
 2026-02-28 19:05:02 +01:00
Daneel
acc2a2985e patches: add 0009 resource safety hardening + update 0007/0008 
New patch 0009 fixes HIGH severity issues from Opus review:
- Announcement coalescing (50ms debounce)
- cachedText retain+autorelease in accessibilityValue
- EmacsView dealloc: nil out emacsView on all AX elements
- Nil guards on protocol methods + overlayZoomActive

0007 updated: revert accidental em-dash→triple-dash, add overlayZoomActive nil guards
0008 updated: specpdl exception safety for accessibilityUpdating, lastChildFrameBuffer staticpro

Series now 9 patches total (0001-0006 unchanged, 0007-0009 new/updated).
 2026-02-28 18:45:30 +01:00
Daneel
0f7608326c patches: fix 2 blockers from Opus review 
BLOCKER #1: accessibilityUpdating flag exception safety.
A Lisp signal (longjmp) during postAccessibilityUpdates left
the re-entrance flag permanently YES, suppressing all future
AX notifications → VoiceOver goes silent randomly.
Fix: specpdl unwind protection (record_unwind_protect_ptr)
resets the flag on any longjmp. All 3 exit points use unbind_to.

BLOCKER #2: static struct buffer *lastBuffer dangling pointer.
Raw C pointer to buffer struct has no GC protection. After
kill-buffer, the pointer dangles.
Fix: file-scope Lisp_Object lastChildFrameBuffer with staticpro.
EQ comparison instead of pointer equality.

Also: revert accidental em-dash → triple-dash in title bar (0007),
fix README factual error (BUF_OVERLAY_MODIFF cache key).
 2026-02-28 18:29:19 +01:00
Daneel
4f37a8660e patches: update TESTING.txt + README.txt for 0007/0008 
TESTING: sections 14 (overlay completion) + 15 (child frame completion)
README: patch series listing, overlay/child frame architecture,
  textDidChange flag, focus restoration, new limitations
 2026-02-28 18:01:38 +01:00
Daneel
6356cd9751 config: org-super-agenda-header-map nil (disable header keymap) 2026-02-28 17:55:55 +01:00
Daneel
ef239ddf7a config: fix org-super-agenda bulk marking (header keymap override) 2026-02-28 17:52:39 +01:00
Daneel
c05b46b058 patches: 0007 textDidChange fix (hl-line-mode), remove config workaround 2026-02-28 17:42:00 +01:00
Daneel
beb5e14adf patches: revert textDidChange from 0007, config workarounds 
- 0007 reverted to original else-if (no textDidChange flag)
- config: disable hl-line-mode (BUF_MODIFF blocking VoiceOver)
- config: org-startup-folded 'content (all headings, body hidden)
- config: corfu-auto-prefix 3 + delay re-set hook after Doom init
 2026-02-28 17:39:51 +01:00
Daneel
edbed0a116 patches: 0007 fix hl-line-mode blocking SelectedTextChanged 
hl-line-mode (and similar) bumps BUF_MODIFF via text property
changes on every cursor movement. The else-if structure caused
the modiff branch to fire (skipping ValueChanged correctly) but
also blocked the cursor-move branch (SelectedTextChanged).

Fix: use textDidChange flag to decouple the two branches.
ValueChanged and SelectedTextChanged remain mutually exclusive
for real edits, but SelectedTextChanged now fires when only
text properties changed.
 2026-02-28 17:38:05 +01:00
Daneel
83c3c09858 config: restore dirvish (issue is Doom/Evil, not dirvish) 2026-02-28 17:34:09 +01:00
Daneel
0996157b34 config: org-startup-folded t (show only headings on open) 2026-02-28 17:31:41 +01:00
Daneel
fbbd7530c5 config: replace dirvish with plain dired 
Dirvish caused VoiceOver issues. Plain dired with:
- hide-details, GNU ls sorting, dwim-target
- h/l navigation (vim-style)
- recursive copies, top-level delete confirm
 2026-02-28 17:30:53 +01:00
Daneel
2d053f5a92 patches: 0008 fix EmacsAccessibilityBuffer class name 2026-02-28 17:24:44 +01:00
Daneel
4c7ce352cd patches: 0008 focus restore after child frame close + corfu delay 2s 
- childFrameCompletionActive flag: set by child frame handler,
  cleared when no child frame visible on parent's next cycle
- Posts FocusedUIElementChanged on parent buffer element to
  restore VoiceOver character echo after corfu closes
- corfu-auto-delay: 1.0 → 2.0 (reduce popup noise)
 2026-02-28 17:21:44 +01:00
Daneel
afa65a8201 patches: 0008 restored to confirmed working version (3e5fe81) 
Pure version: direct UAZoomChangeFocus, specpdl_ref, re-entrance
guard, buffer switch + unbind_to. No window announcement suppression
(all attempts broke VoiceOver focus tracking or Zoom).
 2026-02-28 17:08:49 +01:00
Daneel
e09b8c61f0 patches: 0008 - setTitle:empty instead of setAccessibilityElement:NO 2026-02-28 17:04:06 +01:00
Daneel
306cde4f79 patches: restore 0008 + setAccessibilityElement:NO (no Zoom changes) 
Restore working 0008 (direct UAZoomChangeFocus, specpdl_ref fix,
re-entrance guard, buffer switch). Only addition: suppress child
frame window announcement via setAccessibilityElement:NO.
No overlayZoomRect/overlayZoomActive changes — 0007 untouched.
 2026-02-28 16:59:05 +01:00
Martin Sukany
f05d124381 Revert "config: corfu-terminal on macOS GUI for VoiceOver accessibility" 
This reverts commit 190a4ae346.
 2026-02-28 16:57:55 +01:00
Daneel
190a4ae346 config: corfu-terminal on macOS GUI for VoiceOver accessibility 
Child frames cause VoiceOver to announce 'X window' and break
focus tracking.  corfu-terminal renders via overlays, which the
VoiceOver overlay completion patch (0007) handles automatically.
 2026-02-28 16:49:40 +01:00
Daneel
9772b7e33e patches: drop 0008 (child frame), revert 0007 to clean state 
Child frame completion (Corfu) will be handled via config:
corfu-terminal-mode renders as overlays → patch 0007 handles it.
 2026-02-28 16:48:53 +01:00
Daneel
1455542227 patches: 0008 - GroupRole + focus restore + overlayZoom reset 
- NSAccessibilityGroupRole (no window announcement, focus tracking OK)
- FocusedUIElementChanged on parent when corfu closes
- overlayZoomActive = NO reset each parent cycle (handles C-g + frame delete)
 2026-02-28 16:43:26 +01:00
Daneel
5a58e3b925 patches: 0008 - setAccessibilityElement:NO (suppress window announcement) 2026-02-28 16:34:41 +01:00
Daneel
2dc4182856 patches: 0008 - Zoom via parent overlayZoomRect + suppress window announcement 2026-02-28 16:29:26 +01:00
Daneel
3e5fe814b8 patches: 0008 fix specpdl_ref type (not ptrdiff_t) 2026-02-28 16:19:08 +01:00
Daneel
5aa0f05a33 patches: 0008 fix current_buffer bug + unbind_to on all return paths 
Fbuffer_substring_no_properties operates on current_buffer, not the
passed buffer. Added set_buffer_internal_1 + record_unwind_current_buffer
with unbind_to on every return path.
 2026-02-28 16:15:41 +01:00
Daneel
31fcc1a711 patches: remove stale 0007 (merged overlay+child-frame variant) 2026-02-28 16:11:52 +01:00
Daneel
659b9e2a1e patches: 0008 fix - re-entrance guard + modiff gate + safety checks 
Root cause: child frame path bypassed accessibilityUpdating guard.
Lisp calls in announceChildFrameCompletion triggered redisplay →
ns_update_end → postAccessibilityUpdates → infinite recursion.
 2026-02-28 16:11:23 +01:00
Daneel
a8af58cff1 patches: split 0007 (overlay) + 0008 (child frame) 
0007: Vertico/Icomplete/Ivy overlay completion, Zoom at text left edge
0008: Corfu/Company-box child frame completion, direct UAZoomChangeFocus
 2026-02-28 16:02:13 +01:00
Daneel
92188ab008 patches: v8 0007 - child frame completion (Corfu) + Zoom fix 
Added: child frame buffer scanning for Corfu/Company-box.
Fixed: Zoom rect at text area left edge (not window center).
Added: 'selection' face match for company-tooltip-selection.
 2026-02-28 15:59:11 +01:00
Daneel
be4e0bb5be patches: v7 0007 - Zoom left edge + selection face match 
Zoom rect now at text area left edge (WINDOW_TEXT_TO_FRAME_PIXEL_X)
with cursor-width (FRAME_COLUMN_WIDTH) instead of full window width.
Face matching adds 'selection' (company-tooltip-selection).
 2026-02-28 15:51:06 +01:00
Daneel
4e5596d9de patches: v6 0007 - fix Zoom Y offset (line_height arithmetic) 2026-02-28 15:39:44 +01:00
Daneel
9129f032cf patches: v5 0007 - review fixes (em dash, comments, safety docs) 2026-02-28 15:36:50 +01:00
Daneel
99609f0437 patches: v4 0007 - Zoom follows overlay candidate 
Zoom now tracks the selected candidate row via overlayZoomRect
instead of always pointing at the text cursor. Returns to cursor
on typing (chars_modiff change).
 2026-02-28 15:33:45 +01:00
Daneel
9359277143 patches: v3 0007 - face name heuristic for candidate detection 
Previous two-reference algorithm failed because:
- Vertico's cursor-space line (face=nil) confused the reference
- Count overlay processed before candidates overlay
- Group titles have distinct faces too

New approach: ns_ax_face_is_selected checks if face symbol name
contains 'current' or 'selected'. Works for all major frameworks
(Vertico, Icomplete, Ivy) without framework-specific code.
 2026-02-28 15:25:52 +01:00
Daneel
fcff3429b1 patches: rewrite 0007 - fix root cause of 'new line' announcement 
Root cause: Vertico bumps BOTH BUF_MODIFF (text property face change
from vertico--prompt-selection) and BUF_OVERLAY_MODIFF (overlay-put)
in same cycle. Previous else-if chain meant overlay branch never fired.

Fixes:
1. Overlay check independent (if, not else-if)
2. BUF_CHARS_MODIFF gates ValueChanged (suppress property-only changes)
3. ensureTextCache no longer tracks overlay_modiff (prevents race)
4. Only AnnouncementRequested (no SelectedTextChanged - wrong line)
5. Two-reference face detection + single-candidate
6. Zoom tracking via UAZoomChangeFocus
 2026-02-28 15:12:11 +01:00
Daneel
9408e37a90 patches: rewrite 0007 overlay support 
Key changes from previous version:
- Remove overlay text from ns_ax_buffer_text (was causing spurious
  'new line' announcements via VoiceOver text diff)
- Do NOT invalidate text cache on overlay change
- Two-reference face detection (handles selected at any position)
- SDATA scan instead of per-char Faref for newline detection
- Zoom tracking via UAZoomChangeFocus for selected candidate row
- Deduplication via cachedCompletionAnnouncement
 2026-02-28 14:57:00 +01:00
Daneel
6c502c7af5 patches: squash 0007+0008+0009 into single clean 0007 
All overlay fixes in one patch: Fequal face detection,
NSApp announcement target, SelectedTextChanged interrupt.
 2026-02-28 14:46:43 +01:00
Daneel
8a48e72493 patches: add 0009 fix Fequal face comparison in overlay detection 2026-02-28 14:44:37 +01:00
Daneel
99ed8b4ae4 patches: add 0008 fix overlay announcement bugs 
- AnnouncementRequested to NSApp (not self)
- Compare line faces via Fequal (find selected candidate)
- SelectedTextChanged before announcement (interrupt speech)
 2026-02-28 14:41:45 +01:00
Martin Sukany
270adb363d update 2026-02-28 14:33:41 +01:00
Daneel
24fd61f1f6 patches: add 0007 overlay display string support 
- Appends overlay before-string/after-string to AX text
- Detects BUF_OVERLAY_MODIFF changes
- Finds highlighted candidate via face text property
- Announces selected candidate via AnnouncementRequested
  (fixes 'new line' instead of reading candidate)
 2026-02-28 14:31:02 +01:00
Daneel
ed3bc1e0ad patches: add 0007 overlay display string support 
- Appends overlay before-string/after-string to AX text
- Detects BUF_OVERLAY_MODIFF changes
- Finds highlighted candidate via face text property
- Announces selected candidate via AnnouncementRequested
  (fixes 'new line' instead of reading candidate)
 2026-02-28 14:24:04 +01:00
Martin Sukany
1f91d94ae0 Revert "vertico: enable buffer-mode for VoiceOver accessibility" 
This reverts commit 5799521a00.
 2026-02-28 14:16:02 +01:00
Daneel
5799521a00 vertico: enable buffer-mode for VoiceOver accessibility 
Vertico default renders candidates via overlay before-string which
is invisible to the nsterm.m AX text extraction.  vertico-buffer-mode
renders in a real buffer window that the accessibility layer handles.
 2026-02-28 14:12:42 +01:00
Daneel
a39ccd13d7 org-agenda: start from today, remove duplicates 
- Start from today (no past days visible)
- Show 7 days forward
- Skip done/cancelled items
- No duplicate: skip scheduled if deadline already shown
- Suppress early deadline warning if scheduled date exists
 2026-02-28 13:34:50 +01:00
Daneel
c67fa525ab org-super-agenda: fix sorting and grouping 
- Priority-based sorting within groups (A > B > C)
- Overdue deadlines at top
- Due today / scheduled today separated
- Due soon (upcoming deadlines) in own group
- No duplicates (items match first group only)
- Kyndryl/ZTJ groups by tag without deadline overlap
 2026-02-28 13:31:18 +01:00
Daneel
5293eef3ac dired: enable gnus-dired-mode for multi-file mail attachments 2026-02-28 13:18:54 +01:00
Daneel
9130268ff0 patches: fix ObjC category declaration warnings 
Move postAccessibilityNotificationsForFrame: declaration from
primary @interface to (Notifications) category.
Add invalidateInteractiveSpans to (InteractiveSpans) category.
Fixes 3 compiler warnings (-Wobjc-method-access,
-Wincomplete-implementation, -Wobjc-protocol-method-implementation).
 2026-02-28 12:58:18 +01:00
Daneel
6da6f7c90f mu4e: add citation color faces for reply readability 2026-02-28 12:52:01 +01:00
Daneel
ca77cc8e3d patches: add TESTING.txt with macOS build and VoiceOver evidence 2026-02-28 11:46:53 +01:00
Daneel
edab71038a patches: 6-patch series (split Buffer into core + notifications) 
0001: Base classes + helpers (+587)
  0002: Buffer core protocol (+1089)
  0003: Buffer notifications + ModeLine (+545)
  0004: Interactive spans (+286)
  0005: EmacsView integration + NEWS (+408)
  0006: Documentation (+75)

Changes from v2:
- Split patch 2 from 1620 to 1089+545 (biggest evaluator concern)
- Added ObjC Notifications category for clean separation
- Enhanced commit messages with test methodology details
- Category declaration added to nsterm.h
 2026-02-28 10:35:53 +01:00
Daneel
fa28bb52e1 patches: fix forward dependency (helpers moved to patch 1) 2026-02-28 10:24:39 +01:00
Daneel
5016155c8a patches: 5-patch VoiceOver series (improved split + safety docs) 
Split into 5 logical patches:
  0001: Base classes + text extraction (+474)
  0002: Buffer + ModeLine protocol (+1620)
  0003: Interactive spans (+403)
  0004: EmacsView integration + etc/NEWS (+408)
  0005: Documentation (+75)

Improvements over previous version:
- 5 patches (was 3): finer granularity
- Helpers placed in correct patches (find_completion_overlay_range,
  event_is_line_nav_key moved to patch with their users)
- etc/NEWS moved to last functional patch (0004)
- ChangeLog-format commit messages
- Longjmp safety analysis comment in code
- Code reorganized for clean sequential patches
 2026-02-28 10:11:16 +01:00
Daneel
67b1d25c34 patches: 4-patch VoiceOver series (split + improved docs) 
Split VoiceOver accessibility into 4 logical patches:
  0001: Base classes + text extraction (+753)
  0002: Buffer/ModeLine/InteractiveSpan implementations (+1716)
  0003: EmacsView integration + cursor tracking (+395)
  0004: Documentation with known limitations (+75)

Each patch is self-contained: 0001 adds infrastructure that compiles
but doesn't change behavior.  0002 adds protocol implementations.
0003 wires everything into EmacsView.  0004 documents for users.

All patches verified: apply cleanly to current Emacs master,
final state identical to original monolithic patch.
 2026-02-28 09:54:51 +01:00
Daneel
2c8515a0a1 patches: split VoiceOver into 3-patch series, improve docs 
Split the monolithic 3011-line patch into logical pieces:
  0001: All new accessibility code (infrastructure, no existing code modified)
  0002: EmacsView integration + cursor tracking (wiring only)
  0003: Documentation (expanded with known limitations)

Improvements:
- Comprehensive commit messages with testing methodology
- Known limitations documented (text cap, bidi, mode-line icons)
- Documentation expanded with Known Limitations section
- Each patch is self-contained and reviewable
 2026-02-28 09:34:00 +01:00
Daneel
bbd328dc81 fix: patch hunk 8 old_count 7→6 (trailer miscount) 2026-02-28 09:10:53 +01:00
Daneel
b002d3004a patches: fix MRC build — add @synthesize for spanLabel/spanValue 2026-02-27 22:25:36 +01:00
Daneel
d408a542e5 patches: review fixes — defvar, method extraction, GC safety, window_end_valid 
Review-based improvements:
- ns-accessibility-enabled DEFVAR_BOOL (disable AX overhead)
- window_end_valid guard in ns_ax_window_end_charpos
- GC safety comments on Lisp_Object ObjC ivars
- postAccessibilityNotificationsForFrame split into 4 methods
- block_input in ns_ax_completion_text_for_span
- Fplist_get predicate comment
- macos.texi VoiceOver section with defvar docs
- README updated with USER OPTION + REVIEW CHANGES sections
 2026-02-27 17:51:39 +01:00
Daneel
b83a061322 patches: review fixes — eassert, blank lines, Texinfo doc 
- nsterm.m: Remove 2 stray blank lines at start of
  ns_ax_event_is_line_nav_key body
- nsterm.m: Add eassert([NSThread isMainThread]) to ensureTextCache
  for explicit main-thread contract enforcement
- New 0002 patch: Texinfo section in doc/emacs/macos.texi documenting
  VoiceOver accessibility, Zoom tracking, completion announcements
- README.txt: Updated file listing and patch index
 2026-02-27 17:15:18 +01:00
Daneel
65c799dc3f patches: review fixes — specpdl protection, overlay_modiff tracking, binary search, enum cleanup 
M1: accessibilityRangeForPosition uses specpdl unwind protection for
    block_input/unblock_input (consistent with all other methods).
M2: Track BUF_OVERLAY_MODIFF in ensureTextCache — overlay-only changes
    (timer-based completion highlight) now invalidate the text cache.
M3: Detect narrowing/widening by comparing cachedTextStart vs BUF_BEGV.
m1: Binary search (O(log n)) for visible runs in both
    accessibilityIndexForCharpos and charposForAccessibilityIndex.
m3: Add EmacsAXSpanTypeNone = -1 to enum instead of (EmacsAXSpanType)-1 cast.
m5: Add TODO comment in ns_ax_mode_line_text about non-CHAR_GLYPH limitation.
README: Remove resolved overlay_modiff limitation, document binary search
    and narrowing detection, update architecture section.
 2026-02-27 16:56:05 +01:00
Daneel
765725aaef patches: fix review B1/W1-5 — unwind protection, dealloc leak, DEFSYM nav, lineRange, buffer validation, select-window 
B1: setAccessibilitySelectedTextRange: — add record_unwind_protect_void(unblock_input)
    before block_input to prevent permanently blocked input if Fset_marker signals.
W1: EmacsAccessibilityInteractiveSpan — add -dealloc releasing spanLabel/spanValue
    (MRC copy properties leaked on every span rebuild cycle).
W2: ns_ax_event_is_line_nav_key — replace 8x intern_c_string with DEFSYM'd symbols
    (Qns_ax_next_line etc.) to avoid per-cursor-move obarray lookups.
W3: accessibilityRangeForLine: — rewrite from O(n chars) characterAtIndex loop to
    O(lines) lineRangeForRange, matching accessibilityLineForIndex: pattern.
W4: accessibilityChildrenInNavigationOrder — validate buffer before calling
    ns_ax_scan_interactive_spans to prevent Lisp signals in dispatch_sync context.
W5: EmacsAccessibilityBuffer setAccessibilityFocused: — add Fselect_window so
    VoiceOver focus actually switches the Emacs selected window, with proper
    unwind protection for block_input.
 2026-02-27 16:38:12 +01:00
Daneel
936c251f11 patches: comprehensive review fixes — B1/W1-4/M1-4 
B1: setAccessibilityFocused: on EmacsAccessibilityBuffer now checks
    ![NSThread isMainThread] and dispatches to main via dispatch_async.
    Prevents data race + AppKit thread violation from AX server thread.

W1: accessibilityInsertionPointLineNumber and accessibilityLineForIndex:
    now use lineRangeForRange iteration — O(lines) instead of O(chars).

W2: ns_ax_scan_interactive_spans skips non-interactive regions using
    Fnext_single_property_change for each scannable property and
    Fnext_single_char_property_change for keymap overlays.

W3: ns_ax_event_is_line_nav_key inspects Vthis_command against known
    navigation command symbols (next-line, previous-line, evil variants,
    dired variants) instead of raw key codes. Tab/backtab fallback
    retained via last_command_event.

W4: DEFSYM symbols renamed with ns_ax_ prefix (Qns_ax_button, etc.)
    to avoid linker collisions with other Emacs source files.
    Lisp symbol strings unchanged.

M3: Removed dead enum values (CheckBox, TextField, PopUpButton) and
    corresponding dead switch cases.

M4: Improved accessibilityStyleRangeForIndex: comment documenting the
    line-granularity simplification.

README: Updated stats, KNOWN LIMITATIONS, DEFSYM docs, test numbering.
 2026-02-27 16:14:47 +01:00
Martin Sukany
a6a3aca678 remove some stale files 2026-02-27 15:47:21 +01:00
Daneel
60e9ea2c59 patches: update README — document async notification posting 
Add deadlock prevention section to THREADING MODEL, note async
posting in NOTIFICATION STRATEGY, add design decision 6a, and
add deadlock regression test case (#24) to testing checklist.
 2026-02-27 15:44:22 +01:00
Daneel
111013ddf1 patches: fix VoiceOver deadlock — async AX notification posting 
NSAccessibilityPostNotification may synchronously invoke VoiceOver
callbacks from a background AX server thread.  Those callbacks call
dispatch_sync(main_queue) to read buffer state.  If the main thread
is still inside the notification-posting method (postAccessibilityUpdates,
windowDidBecomeKey, or postAccessibilityNotificationsForFrame), the
dispatch_sync deadlocks.

Symptom: Emacs hangs on C-x o after M-x list-buffers from Completions
buffer, but only with VoiceOver enabled.

Fix: introduce ns_ax_post_notification() and
ns_ax_post_notification_with_info() wrappers that defer notification
posting via dispatch_async(main_queue).  This lets the current method
return and frees the main queue for VoiceOver's dispatch_sync calls.

All 14 notification-posting sites now use the async wrappers.
 2026-02-27 15:41:26 +01:00
Daneel
fa3ee7cc88 fix: correct patch hunk headers after static BOOL insertion 
The previous sed edit added a line but didn't update @@ hunk
headers, causing 'corrupt patch at line 2849'. Fixed:
- Main hunk: 2386 -> 2387 new-side lines
- Subsequent hunks: +1 offset on new-file line numbers
 2026-02-27 15:23:19 +01:00
Daneel
d29a33fcfb fix: add missing 'static BOOL' return type to ns_ax_find_completion_overlay_range 
The function definition lacked a return type, causing:
  nsterm.m:7149:1: error: a type specifier is required for all declarations

Added 'static BOOL' — the function returns YES/NO and is file-scoped.
Updated patch line counts in header and README accordingly.
 2026-02-27 15:21:47 +01:00
Daneel
0b43fd25e3 patches: review fixes — memory leak, dead code, unwind-protect, protocol conformance 
B1: Fix memory leak in ns_ax_scan_interactive_spans — [spans copy]
    returned +1 retained object never released by caller.
    Now returns [[spans copy] autorelease].

B2: Remove dead function ns_ax_utf16_length_for_buffer_range —
    defined but never called anywhere in the patch.

B3: Add specpdl unwind protection in
    EmacsAccessibilityInteractiveSpan setAccessibilityFocused: —
    if Fselect_window signals, block_input is now always matched
    by unblock_input via record_unwind_protect_void.

W2: Document ns_ax_event_is_line_nav_key fragility in README
    Known Limitations (raw keycodes vs command symbols).

W4: Add comment for #include intervals.h (TEXT_PROP_MEANS_INVISIBLE).

M3: accessibilityBoundsForRange: on EmacsView now delegates to the
    focused EmacsAccessibilityBuffer for accurate per-range geometry,
    with cursor-rect fallback for Zoom.

M4: Add <NSAccessibility> protocol conformance to
    EmacsAccessibilityBuffer @interface declaration.

W1: Expanded commit message listing all new types, functions, DEFSYM
    additions, and threading model.
 2026-02-27 15:12:40 +01:00
Daneel
6994403014 patches: complete thread safety — dispatch_sync on ALL AX methods 
Add dispatch_sync guard to: Buffer accessibilityFrame, accessibilityLabel,
accessibilityRole, accessibilityRoleDescription, accessibilityPlaceholderValue,
isAccessibilityFocused. ModeLine accessibilityValue, accessibilityFrame,
accessibilityLabel. setAccessibilitySelectedTextRange now uses
record_unwind_current_buffer + unbind_to.
 2026-02-27 14:55:03 +01:00
Daneel
e4129581b7 patches: unify AX threading — dispatch_sync on all getter methods 
8 methods were missing thread guards: accessibilityNumberOfCharacters,
accessibilitySelectedText, accessibilityStringForRange:,
accessibilityLineForIndex:, accessibilityRangeForLine:,
accessibilityRangeForIndex:, accessibilityVisibleCharacterRange,
setAccessibilitySelectedTextRange:.

All AX getters now consistently dispatch_sync to main thread.
GC safety comment added to InteractiveSpan setAccessibilityFocused:.
 2026-02-27 14:49:33 +01:00
Daneel
404d26e2fe patches: R3 — add missing NSTRACE to 3 EmacsView methods 2026-02-27 14:37:11 +01:00
Daneel
1ecb9908af patches: maintainer review R2 fixes — all must-fix items resolved 
- unwind-protect in ns_ax_utf16_length_for_buffer_range
- unwind-protect in ns_ax_completion_text_for_span
- unwind-protect in postAccessibilityNotificationsForFrame
- NSTRACE added to all 4 key functions (3 were missing)
- O(n) mouse-face scan → Fprevious/Fnext_single_char_property_change
- etc/NEWS entry added to patch
- Main-thread invariant comment in ensureTextCache
 2026-02-27 14:35:04 +01:00
Daneel
eafc80e324 patches: maintainer review fixes — thread safety, performance, safety 
BLOCKER fixes:
- @synchronized on visibleRuns/cachedText (AX thread data race)
- Foverlays_in bulk query replaces O(n) per-char Foverlays_at loop

WARNING fixes:
- record_unwind_current_buffer in ns_ax_buffer_text
- ns_ax_frame_for_range simplified (charpos params, no NSRange indirection)
- NSTRACE added to 4 key accessibility functions
- MAC_OS_X_VERSION_MIN_REQUIRED guard for UAZoom APIs
- BUF_OVERLAY_MODIFF TODO in ensureTextCache
 2026-02-27 14:29:41 +01:00
Daneel
af960683f0 config: robust dired-hide-details-mode for VoiceOver 
- Explicitly set dirvish-hide-details t
- Keep dired-mode-hook as primary trigger
- Add dired-after-readin-hook as failsafe (catches late buffer setup)
- Remove dirvish-directory-view-mode-hook (dirvish handles via its own var)
 2026-02-27 14:08:40 +01:00
Daneel
d151c40357 config: add dired-hide-details-mode hook for dirvish too 
dirvish-override-dired-mode may bypass dired-mode-hook.
Add hook to dirvish-directory-view-mode-hook as well.
Toggle details with ( in dired/dirvish buffers.
 2026-02-27 14:04:55 +01:00
Daneel
b8ef731a8a config: minimal dirvish attributes for VoiceOver 
Remove file-time and file-size from default dirvish-attributes so
screen reader reads only filenames.  Add D keybinding to toggle
full details on/off in dirvish buffers.
 2026-02-27 14:01:46 +01:00
Daneel
4eb370f6f0 patches: add README.txt — full VoiceOver architecture documentation 
QA PASS 93.2/100. Covers: architecture, threading model, notification
strategy, text cache, completion announcements, interactive spans,
Zoom integration, design decisions, known limitations, testing checklist.
 2026-02-27 13:59:08 +01:00
Daneel
33eff6e9f8 patches: QA round 2 PASS (93.5/100) — final indentation fix + ChangeLog commit message 2026-02-27 13:38:30 +01:00
Daneel
95b5271e35 patches: QA round 1 — all 13 issues fixed 
- Delete dead ns_ax_command_is_basic_line_move
- Rename ns_ax_event_is_ctrl_n_or_p → ns_ax_event_is_line_nav_key
- Fix DEFSYM naming (Qwidget/Qbutton/Qfollow_link/Qorg_link/Qcompletion_list_mode)
- DEFSYM for hot-path symbols (Qcompletion__string, Qcompletions_highlight, Qbacktab)
- Remove duplicate overlay scan in else branch
- Add accessibilityStringForRange: to EmacsView (legacy API fix)
- Replace @try/@finally with explicit re-entrance guard
- Replace NSCAssert with eassert
- Wrap all lines to ≤79 columns (dispatch_sync, NSDictionary literals)
- Add missing comments (NS_AX_TEXT_CAP, sentinel values, @public, block_input)
- Fix indentation of cachedCompletionPoint lines
- Remove orphan @protected
 2026-02-27 13:34:33 +01:00
Daneel
7971f42600 patches: restore full-line AnnouncementRequested for C-n/C-p 2026-02-27 12:59:32 +01:00
Daneel
3447fcc8d5 patches: hybrid notification — SelectedTextChanged + selective AnnouncementRequested 
- SelectedTextChanged always posted (interrupts auto-read, braille)
- Character moves: granularity omitted from userInfo + AnnouncementRequested(char AT point)
- Word moves: granularity=word in userInfo (VoiceOver reads word) — fixes M-f/M-b
- Line moves: granularity=line in userInfo (VoiceOver reads line)
- Completion in focused buffer: AnnouncementRequested overrides line
 2026-02-27 12:49:55 +01:00
Daneel
495a5510c6 patches: AnnouncementRequested PriorityMedium→High (interrupt buffer reading) 2026-02-27 12:37:42 +01:00
Daneel
8a834448f9 patches: systematic notification strategy — eliminate double-speech 
SelectedTextChanged → only for selection changes (mark active)
AnnouncementRequested → only for cursor moves (char/line)
Never both for the same event. Fixes double-speech globally.
 2026-02-27 12:27:20 +01:00
Daneel
edad606809 patches: fix double-speech and evil block cursor char reading 
- SelectedTextChanged posted only for focused element: prevents completion
  buffer from triggering double-speech (old-candidate + new-candidate)
- AnnouncementRequested for char navigation restored (evil block cursor fix):
  posted AFTER SelectedTextChanged so VoiceOver cancels its own reading
  and uses our explicit char-at-point announcement
- Priority: Medium (was High)
 2026-02-27 12:16:32 +01:00
Daneel
5f98a78467 patches: fix 5 critical issues in VoiceOver patch 
- Remove static Lisp_Object locals; use DEFSYM in syms_of_nsterm (GC-safe)
- Replace Lisp calls in accessibilityIndexForCharpos / charposForAccessibilityIndex
  with NSString composed-character traversal (thread-safe, no Lisp needed)
- isAccessibilityFocused reads cachedPoint instead of marker_position off-thread
- Remove double-announcement: character nav uses only SelectedTextChanged
- Line announcement priority: High → Medium (avoid suppressing VO feedback)
 2026-02-27 12:07:19 +01:00
Daneel
3df5dc94b1 patches: fix char nav — announce char AT point, not before it (evil block cursor) 2026-02-27 11:48:42 +01:00
Daneel
75c1b471c4 patches: fix granularity — line comparison not delta, fixes org-mode empty lines 2026-02-27 11:36:08 +01:00
Daneel
8890e659e1 patches: systematic line announcement (granularity=line, all modes) 2026-02-27 11:14:30 +01:00
Daneel
0110670734 patches: fix broken function insertion (build error) 2026-02-27 11:06:14 +01:00
Martin Sukany
ab4367c459 update 2026-02-27 11:05:28 +01:00
Daneel
f306599d94 patches: fix completion announcement (CONSP completion--string, focused+unfocused paths) 2026-02-27 11:01:22 +01:00
Daneel
c138bdc6d5 patches: remove accessibilityChildren override (C-n/C-p line nav regression fix) 2026-02-27 10:47:54 +01:00
Daneel
5f08e0a315 patches: fix completion span boundary (completion--string vs mouse-face) 2026-02-27 10:42:31 +01:00
Daneel
23102444d4 patches: fix build errors (Fplist_get arity, MRC weak, duplicate decl) 2026-02-27 10:31:02 +01:00
Daneel
92ef24332f patches: add EmacsAccessibilityInteractiveSpan (VoiceOver Tab nav, buttons, links, completions) 2026-02-27 10:26:29 +01:00
Daneel
7a0e7722f7 patches: fix Tab navigation in completion buffer (probe order + Tab detection) 2026-02-27 10:10:39 +01:00
Daneel
1245253e15 patches: fix B1 (live window ref), B2 (matrix guard), B3 (invisibility-spec), H1 (thread safety), H4 (main thread assert) 2026-02-27 09:57:10 +01:00
Daneel
081d1c01e7 patches: restore postAccessibilityUpdates in ns_update_end (VoiceOver broken after rebase) 2026-02-27 09:39:42 +01:00
Daneel
d11aa168b9 patches: fix Vreal_this_command linker error, squash into single patch 2026-02-27 07:43:13 +01:00
Daneel
f37e06b00f patches: rebase on upstream f0dbe25 + fix NSRange return type 2026-02-27 07:38:18 +01:00
Daneel
7419d9b0e4 patches: regenerate from actual emacs repo (fix src/ path prefix) 2026-02-27 07:31:44 +01:00
Daneel
368f9600df patches: fix NSRange return type bug in accessibilitySelectedTextRange 2026-02-27 07:29:56 +01:00
Daneel
97776b5141 Fix patch after 3-reviewer pipeline review 
- BLOCKER: real_this_command → Vreal_this_command (DEFVAR_LISP uses V prefix)
- Thread safety: setAccessibilitySelectedTextRange dispatches to main thread
- Defensive: 7 new BUFFERP(w->contents) guards before XBUFFER calls

Reviewed by: symbol checker, logic/memory reviewer, ABI/build reviewer
Verified: git apply --check OK, zero real_this_command refs, dispatch_async present
 2026-02-26 22:27:25 +01:00
Daneel
3c0a68cfb9 Fix patch: adjust subsequent hunk offsets after 2-line removal 2026-02-26 21:52:48 +01:00
Martin Sukany
9a08f01066 removed 2026-02-26 21:51:50 +01:00
Martin Sukany
20d9605afa Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 21:50:36 +01:00
Daneel
35a5326c18 Fix corrupt patch: correct hunk line counts after extern removal 2026-02-26 21:50:23 +01:00
Martin Sukany
f6c4328cf6 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 21:43:12 +01:00
Daneel
220e90144f Fix build errors in Zoom/VoiceOver patch 
- Remove 'extern Lisp_Object last_command_event' - last_command_event
  is a macro in globals.h (expands to globals.f_last_command_event),
  so an extern declaration conflicts with the existing
  'extern struct emacs_globals globals'
- Replace invalid C escape sequences '\C-n' and '\C-p' with
  ('n' & 0x1f) and ('p' & 0x1f) respectively
 2026-02-26 21:43:04 +01:00
Martin Sukany
c8d7d11136 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 21:38:10 +01:00
Daneel
3bad798541 patches: fix v16.4 build errors (extern redecl + invalid C-n/C-p escape) 2026-02-26 21:37:41 +01:00
Martin Sukany
259ec157d1 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 19:14:20 +01:00
Daneel
7c01587079 patches: isolate C-n/C-p keypath from arrow navigation 2026-02-26 18:41:35 +01:00
Daneel
059ee5a0ea patches: target C-n/C-p vs arrow VoiceOver line-read mismatch 2026-02-26 18:37:06 +01:00
Martin Sukany
fde9454f41 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 18:25:13 +01:00
Daneel
1b42d553a2 patches: completion candidate-aware VoiceOver announce fix 2026-02-26 18:25:04 +01:00
Martin Sukany
b691e804d2 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 18:08:03 +01:00
Daneel
74b9691856 patches: fix AX enum mapping + completion announcement source 2026-02-26 18:06:14 +01:00
Martin Sukany
f95d06dc82 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 17:51:20 +01:00
Daneel
b3a6141831 patches: robust AX/VoiceOver fix after full audit pipeline 2026-02-26 17:49:56 +01:00
Martin Sukany
c0a9bc8c62 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 17:32:55 +01:00
Daneel
8720a43d04 patches: fix paths to src/nsterm.{m,h} 2026-02-26 17:32:31 +01:00
Martin Sukany
e6608d9813 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 17:31:27 +01:00
Daneel
8ae3f0b367 patches: update VoiceOver patch (v15.9 candidate) 2026-02-26 17:30:21 +01:00
Martin Sukany
bae4368d9e Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 17:05:52 +01:00
Daneel
fa4748eb4c voiceover: refresh ns accessibility patch to v15.8 2026-02-26 17:02:49 +01:00
Martin Sukany
ef18e6ef7b Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 16:08:05 +01:00
Martin Sukany
4449c5a3bd Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 15:45:38 +01:00
Martin Sukany
f9403bc6a4 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 15:40:40 +01:00
Martin Sukany
14a0b703ec Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 15:22:33 +01:00
Martin Sukany
77bd9fb84c Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 15:18:34 +01:00
Martin Sukany
68eb568810 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 14:54:07 +01:00
Martin Sukany
a2c9911171 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 14:32:25 +01:00
Martin Sukany
cd53ce26cc Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 14:13:03 +01:00
Martin Sukany
5ded624f7b Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 13:51:11 +01:00
Martin Sukany
6d185c880a Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 13:27:31 +01:00
Martin Sukany
05fc543958 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 13:22:44 +01:00
Martin Sukany
5b12e8c435 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 12:58:04 +01:00
Martin Sukany
be642808cc Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 12:56:54 +01:00
Martin Sukany
fd03f2e7c4 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 12:51:36 +01:00
Martin Sukany
bfe29f8da8 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 12:49:37 +01:00
Martin Sukany
6724922592 Merge remote-tracking branch 'refs/remotes/origin/master' 2026-02-26 11:58:23 +01:00
Daneel
e40d502d43 ns: fix VoiceOver cursor sync — 8 changes from pipeline review 
Changes applied (from vo-cursor pipeline review, 7 workers):

1. (Change 8) Add ns_ax_index_for_charpos helper, refactor
   ns_ax_index_for_point as thin wrapper — shared coordinate
   mapping for all accessibility attribute methods.

2. (Change 1) Remove Site A notifications from ns_draw_window_cursor.
   Eliminates duplicate VoiceOver notifications (Site A + Site B both
   fired for same events). Zoom cursor tracking (UAZoomChangeFocus)
   preserved.

3. (Change 7) Remove redundant bare ValueChanged before rich
   userInfo version in postAccessibilityUpdatesForWindow:.

4. (Change 2) Fix typing echo character extraction to use glyph-based
   index (ns_ax_index_for_point) instead of buffer-relative
   (pt - BUF_BEGV - 1).

5. (Change 3) Add AXTextStateChangeType:@2 (SelectionMove) userInfo
   to SelectedTextChanged notification for cursor movement —
   enables VoiceOver line-by-line reading on arrow keys.

6. (Change 4) Fix accessibilityRangeForPosition: to return
   glyph-based index via ns_ax_index_for_charpos instead of
   buffer-relative (charpos - BUF_BEGV).

7. (Change 5) Fix accessibilitySelectedTextRange mark branch to use
   ns_ax_index_for_charpos for both endpoints instead of mixing
   glyph-based point with buffer-relative mark.

8. Remove 10 redundant text methods from EmacsView (Group role
   should not expose text attributes — eliminates coordinate
   system divergence with EmacsAccessibilityBuffer).

9. Fix MRC leak: release EmacsAccessibilityBuffer after addObject:
   in ns_ax_collect_windows.

10. Remove dead lastAccessibilityModiff ivar (was only used by
    removed Site A).

Enum values verified from WebKit AXTextStateChangeIntent.h:
  AXTextStateChangeTypeEdit = 1
  AXTextStateChangeTypeSelectionMove = 2
  AXTextEditTypeTyping = 3
 2026-02-26 11:44:13 +01:00
14 changed files with 6139 additions and 1670 deletions
Expand all files Collapse all files

9
TODO.org Normal file
View File

@@ -0,0 +1,9 @@
#+title: Todo
* Emacs patch
Po poslednim testovani:
- dired i completions navigace funguje sipkama
- dired i completions - kdyz naviguju emacs zpusobem C-n, C-p, atp, tak to nefunguje, cte to neco uplne jineho, nechapu proc
- V completions stale nefunguje TAB, chova se to stejne jako minule (myslim tim ten hightlighting).
Mozna jsi zapomnel kontext, protoze jsme se prepnuli z Anthropic na OpenAI modely, takze v pripade potreby nacti kontext z NOW.md a memory.

299
config.el
View File

@@ -7,6 +7,13 @@
(setq user-full-name "Martin Sukany"
user-mail-address "martin@sukany.cz")
;; CalDAV calendar IDs (edit here to update sync targets)
(defconst my/caldav-url "https://cal.apps.sukany.cz/dav.php/calendars/martin")
(defconst my/caldav-id-suky "default")
(defconst my/caldav-id-placeholders "4C748EE5-ECFF-4D4A-A72E-6DE37BAADEB3")
(defconst my/caldav-id-family "family")
(defconst my/caldav-id-klara "klara")
;; Trust all TLS certificates (corporate MITM proxy with intermediate CA)
(setq gnutls-verify-error nil)
(setq tls-checktrust nil)
@@ -97,7 +104,9 @@
;; Let Evil use the system clipboard
(after! evil
(setq evil-want-clipboard t))
(setq evil-want-clipboard t)
;; Ensure dashboard buffer starts in normal state (required for SPC leader)
(evil-set-initial-state '+doom-dashboard-mode 'normal))
;; Standard macOS modifier keys for GUI Emacs
(when (display-graphic-p)
@@ -128,10 +137,6 @@
(global-set-key [wheel-up] #'mwheel-scroll)
(global-set-key [wheel-down] #'mwheel-scroll))
;; Ensure dashboard buffer starts in normal state (required for SPC leader)
(after! evil
(evil-set-initial-state '+doom-dashboard-mode 'normal))
;; Cancel persp-mode's 2.5s cache timer after startup
;; (reduces unnecessary redraws that cause macOS Zoom to jump)
(run-with-timer 3 nil
@@ -265,6 +270,7 @@
;; Visual: hide markup, pretty entities, compact tags
(setq org-startup-indented nil ; conflicts with org-modern star display
org-startup-folded 'content ; show all headings, hide body text
org-hide-emphasis-markers t
org-pretty-entities t
org-ellipsis " ▾"
@@ -630,12 +636,15 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(after! corfu
(setq corfu-auto t
corfu-auto-delay 1.0
corfu-auto-prefix 2
corfu-auto-delay 2.0
corfu-auto-prefix 3 ; need 3+ chars before popup
corfu-cycle t
corfu-preselect 'prompt
corfu-quit-no-match 'separator
corfu-preview-current nil)
;; Re-set delay after global-corfu-mode to override Doom defaults
(add-hook 'global-corfu-mode-hook
(lambda () (setq corfu-auto-delay 2.0)))
(global-corfu-mode))
(use-package! cape
@@ -679,6 +688,7 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(expand-file-name "/opt/homebrew/opt/mu/share/emacs/site-lisp/mu/mu4e"))
(after! mu4e
;; --- Mailbox layout ---
(setq mu4e-maildir "~/.mail"
mu4e-get-mail-command "mbsync personal"
mu4e-update-interval 300
@@ -687,8 +697,10 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
mu4e-sent-folder "/personal/Sent"
mu4e-drafts-folder "/personal/Drafts"
mu4e-trash-folder "/personal/Trash"
mu4e-refile-folder "/personal/Archive"
mu4e-headers-show-threads t
mu4e-refile-folder "/personal/Archive")
;; --- Headers view ---
(setq mu4e-headers-show-threads t
mu4e-headers-include-related t
mu4e-use-fancy-chars t
mu4e-headers-mark-for-thread t
@@ -706,25 +718,63 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
mu4e-headers-thread-last-child-prefix '("└>" . "└▶ ")
mu4e-headers-thread-duplicate-prefix '("=" . "≡ "))
;; Bookmarks — unread excludes Trash/Archive/Sent/Drafts/Spam
;; --- Bookmarks ---
;; Keys: u=Unread i=Inbox d=Today w=Week
;; Note: ?d for Today avoids conflict with maildir shortcut ?t=Trash
(setq mu4e-bookmarks
'((:name "Unread"
:query "flag:unread AND NOT maildir:/personal/Trash AND NOT maildir:/personal/Archive AND NOT maildir:/personal/Sent AND NOT maildir:/personal/Drafts AND NOT maildir:/personal/Spam"
:key ?u)
(:name "Inbox" :query "maildir:/personal/INBOX" :key ?i)
(:name "Today" :query "date:today AND NOT maildir:/personal/Trash AND NOT maildir:/personal/Archive AND NOT maildir:/personal/Sent" :key ?t)
(:name "Today" :query "date:today AND NOT maildir:/personal/Trash AND NOT maildir:/personal/Archive AND NOT maildir:/personal/Sent" :key ?d)
(:name "Week" :query "date:7d..now AND NOT maildir:/personal/Trash AND NOT maildir:/personal/Archive AND NOT maildir:/personal/Sent" :key ?w)))
;; Do not cite sender's signature in replies
(setq message-cite-function #'message-cite-original-without-signature)
;; --- Maildir shortcuts (jump with 'j') ---
;; Keys: i=INBOX s=Sent T=Trash a=Archive
;; ?T (uppercase) for Trash avoids conflict with bookmark ?t (was Today)
(setq mu4e-maildir-shortcuts
'(("/personal/INBOX" . ?i)
("/personal/Sent" . ?s)
("/personal/Trash" . ?T)
("/personal/Archive" . ?a)))
;; Signature from file
(setq message-signature-file (expand-file-name "~/.mail/signature")
message-signature t)
;; --- Sending ---
(setq sendmail-program "msmtp"
message-send-mail-function #'message-send-mail-with-sendmail
mail-specify-envelope-from t
message-sendmail-envelope-from 'header)
;; Move cursor past headers to message body when opening a message
;; --- Compose / reply ---
;; message-cite-function is a message-mode setting but configured here
;; because it only matters in the context of mu4e replies.
(setq message-cite-function #'message-cite-original-without-signature
message-signature-file (expand-file-name "~/.mail/signature")
message-signature t)
;; --- Citation colors ---
;; gnus-cite-* : colors in the view (read) buffer
;; message-cited-text-*: colors in the compose (reply) buffer
;; Both use the same Dracula palette for visual consistency.
;; Duplicate face names are intentional — gnus and message-mode
;; use separate face systems even though they render the same content.
(setq gnus-cite-face-list
'(gnus-cite-1 gnus-cite-2 gnus-cite-3 gnus-cite-4))
(custom-set-faces!
'(gnus-cite-1 :foreground "#8be9fd" :italic t) ; cyan — level 1
'(gnus-cite-2 :foreground "#bd93f9" :italic t) ; purple — level 2
'(gnus-cite-3 :foreground "#6272a4" :italic t) ; blue — level 3
'(gnus-cite-4 :foreground "#44475a" :italic t) ; grey — level 4+
'(message-cited-text-1 :foreground "#8be9fd" :italic t)
'(message-cited-text-2 :foreground "#bd93f9" :italic t)
'(message-cited-text-3 :foreground "#6272a4" :italic t)
'(message-cited-text-4 :foreground "#44475a" :italic t))
;; --- View: skip to message body ---
;; gnus-article-prepare-hook fires when the article buffer is ready,
;; covering both the initial render and navigation between messages.
;; No need for mu4e-view-mode-hook (that fires earlier, before content).
(defun my/mu4e-view-goto-body ()
"Position cursor at the start of the message body, skipping headers."
"Position cursor at message body, skipping RFC 2822 headers."
(run-with-idle-timer
0.05 nil
(lambda ()
@@ -732,23 +782,15 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(with-current-buffer buf
(goto-char (point-min))
(while (and (not (eobp))
(looking-at "^\\([A-Za-z-]+:\\|[ \t]\\)"))
(looking-at "^\([A-Za-z-]+:\|[ \t]\)"))
(forward-line 1))
(while (and (not (eobp)) (looking-at "^\\s-*$"))
(while (and (not (eobp)) (looking-at "^\s-*$"))
(forward-line 1)))))))
(add-hook 'gnus-article-prepare-hook #'my/mu4e-view-goto-body)
(add-hook 'mu4e-view-mode-hook #'my/mu4e-view-goto-body)
;; Maildir shortcuts
(setq mu4e-maildir-shortcuts
'(("/personal/INBOX" . ?i)
("/personal/Sent" . ?s)
("/personal/Trash" . ?t)
("/personal/Archive" . ?a)))
;; Cursor on subject column after j/k navigation
;; --- Headers: keep cursor on subject column after j/k ---
(defun my/mu4e-goto-subject (&rest _)
"Move cursor to the start of the subject text in a mu4e headers line."
"Move cursor to the start of the subject text in a headers line."
(when (derived-mode-p 'mu4e-headers-mode)
(let* ((msg (mu4e-message-at-point t))
(subject (when msg (mu4e-message-field msg :subject))))
@@ -760,22 +802,14 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(advice-add 'mu4e-headers-next :after #'my/mu4e-goto-subject)
(advice-add 'mu4e-headers-prev :after #'my/mu4e-goto-subject)
;; zT = toggle thread view (T alone marks thread for bulk action)
;; zT = toggle thread view (plain T marks the thread for bulk action)
(evil-define-key 'normal mu4e-headers-mode-map
(kbd "zT") #'mu4e-headers-toggle-threading))
(after! mu4e
(setq sendmail-program "msmtp"
message-send-mail-function #'message-send-mail-with-sendmail
mail-specify-envelope-from t
message-sendmail-envelope-from 'header))
;;; ============================================================
;;; RSS — ELFEED
;;; ============================================================
(map! :leader :desc "Elfeed" "o r" #'elfeed)
(after! org
(setq rmh-elfeed-org-files
@@ -854,8 +888,10 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(setq vc-ignore-dir-regexp
(format "%s\\|%s" vc-ignore-dir-regexp tramp-file-name-regexp))
(defadvice projectile-project-root (around ignore-remote first activate)
(unless (file-remote-p default-directory) ad-do-it))
(advice-add 'projectile-project-root :around
(lambda (orig-fn &rest args)
(unless (file-remote-p default-directory)
(apply orig-fn args))))
(setq remote-file-name-inhibit-cache nil
tramp-verbose 1)
@@ -865,6 +901,17 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
;;; DIRED & DIRVISH
;;; ============================================================
;; Always hide file details (permissions, size, date) for VoiceOver.
;; Toggle visibility with ( in dired/dirvish buffers.
;; Three layers of insurance: dirvish-hide-details, dired-mode-hook,
;; and dired-after-readin-hook (catches late buffer setup).
(add-hook 'dired-mode-hook #'dired-hide-details-mode)
;; Attach marked files to mail compose buffer via C-c RET C-a
(add-hook 'dired-mode-hook #'turn-on-gnus-dired-mode)
(add-hook 'dired-after-readin-hook
(lambda () (unless dired-hide-details-mode
(dired-hide-details-mode 1))))
;; Emacs 31 may not autoload dired-read-dir-and-switches early enough
(require 'dired)
;; macOS: use GNU ls (coreutils) for dired/dirvish sorting support
@@ -876,14 +923,27 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
"RET" #'dired-find-alternate-file
"^" #'dired-up-directory))
;; Dirvish — modern dired replacement
(use-package! dirvish
:init (dirvish-override-dired-mode)
:config
(setq dirvish-mode-line-format '(:left (sort symlink) :right (omit yank index))
dirvish-attributes '(vc-state subtree-state nerd-icons collapse git-msg file-time file-size)
(setq dirvish-hide-details t
dirvish-mode-line-format '(:left (sort symlink) :right (omit yank index))
dirvish-attributes '(vc-state subtree-state nerd-icons collapse git-msg)
dirvish-side-width 35)
(defun my/dirvish-toggle-details ()
"Toggle file-time and file-size dirvish attributes."
(interactive)
(if (memq 'file-size dirvish-attributes)
(setq-local dirvish-attributes
(seq-remove (lambda (a) (memq a '(file-time file-size)))
dirvish-attributes))
(setq-local dirvish-attributes
(append dirvish-attributes '(file-time file-size))))
(revert-buffer))
(map! :map dirvish-mode-map
:n "D" #'my/dirvish-toggle-details
:n "q" #'dirvish-quit
:n "h" #'dired-up-directory
:n "l" #'dired-find-file
@@ -1079,10 +1139,6 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(setq dtk-speaker-process nil))
(message "Emacspeak OFF (server restart inhibited)"))
(map! :leader
(:prefix ("t" . "toggle")
:desc "Speech ON" "s" #'my/emacspeak-on
:desc "Speech OFF" "S" #'my/emacspeak-off))
(with-eval-after-load 'dtk-speak
(setq dtk-speech-rate-base 300)
@@ -1175,23 +1231,6 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
scroll-margin 2)
;;; ============================================================
;;; KEYBINDINGS
;;; ============================================================
(map! :leader
(:prefix ("h" . "help")
:desc "Describe bindings (buffer-local)" "B" #'describe-bindings))
(map! :leader
(:prefix ("z" . "zoom")
:desc "Zoom in (x1.5)" "+" #'my/zoom-in
:desc "Zoom in (x1.5)" "=" #'my/zoom-in
:desc "Zoom out (x1.5)" "-" #'my/zoom-out
:desc "Reset" "0" #'my/zoom-reset
:desc "Restore previous" "z" #'my/zoom-restore))
;;; ============================================================
;;; MATRIX — EMENT.EL
;;; ============================================================
@@ -1358,9 +1397,7 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
;;; WRITING — olivetti-mode
;;; ============================================================
(use-package! olivetti
:defer t
:config
(after! olivetti
(setq olivetti-body-width 90))
(add-hook 'org-mode-hook (lambda () (when buffer-file-name (olivetti-mode 1))))
@@ -1406,27 +1443,46 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(use-package! org-super-agenda
:after org-agenda
:config
;; Agenda: start from today, no past days, no duplicates
(setq org-agenda-start-on-weekday nil
org-agenda-start-day "0d"
org-agenda-span 7
org-agenda-skip-scheduled-if-done t
org-agenda-skip-deadline-if-done t
org-agenda-skip-scheduled-if-deadline-is-shown t
org-agenda-skip-deadline-prewarning-if-scheduled 'pre-scheduled)
;; Sorting: priority first, then deadline, then scheduled
(setq org-agenda-sorting-strategy
'((agenda priority-down deadline-up scheduled-up)
(todo priority-down deadline-up)
(tags priority-down deadline-up)))
(setq org-super-agenda-groups
'((:name "Kyndryl — today"
:and (:tag ("kyndryl" "work") :scheduled today))
(:name "Kyndryl — deadline"
:and (:tag ("kyndryl" "work") :deadline t))
(:name "Kyndryl"
:tag ("kyndryl" "work"))
(:name "ZTJ — today"
:and (:tag "ztj" :scheduled today))
(:name "ZTJ"
:tag "ztj")
(:name "Today"
:scheduled today
'((:name "Overdue"
:deadline past)
(:name "Due today"
:deadline today)
(:name "Scheduled today"
:scheduled today)
(:name "Due soon"
:deadline future)
(:name "Waiting"
:todo "WAIT")
(:name "Kyndryl"
:tag ("kyndryl" "work"))
(:name "ZTJ"
:tag "ztj")
(:name "Other"
:anything t))))
(after! org-super-agenda
(org-super-agenda-mode 1))
(org-super-agenda-mode 1)
;; Fix: org-super-agenda applies its own keymap to group headers
;; via text properties, overriding org-agenda keybindings.
;; Setting it to nil disables the header keymap entirely so all
;; standard agenda keys (m, B, t, etc.) work on every line.
(setq org-super-agenda-header-map nil))
;;; ============================================================
@@ -1530,13 +1586,14 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
;; Error handler: catch errors during cal->org event update
;; so sync state is saved even if individual events fail
(defadvice org-caldav-update-events-in-org (around skip-failed-events activate)
"Catch errors during cal->org sync; log and return so sync state is saved."
(condition-case err
ad-do-it
(error
(message "org-caldav: update-events-in-org error (sync continues): %S" err)
(org-caldav-debug-print 1 (format "update-events-in-org error: %S" err)))))
(advice-add 'org-caldav-update-events-in-org :around
(lambda (orig-fn &rest args)
"Catch errors during cal->org sync; log and return so sync state is saved."
(condition-case err
(apply orig-fn args)
(error
(message "org-caldav: update-events-in-org error (sync continues): %S" err)
(org-caldav-debug-print 1 (format "update-events-in-org error: %S" err))))))
(defun my/org-caldav-sync ()
"Sync 4 CalDAV calendars: Suky (twoway), Placeholders, Family, Klara (read-only)."
@@ -1553,32 +1610,32 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(insert "#+TITLE: CalDAV sync\n#+STARTUP: overview\n"))))
;; 1. Suky (twoway): download -> suky.org, upload from calendar_outbox.org
(setq org-caldav-url "https://cal.apps.sukany.cz/dav.php/calendars/martin"
org-caldav-calendar-id "default"
(setq org-caldav-url my/caldav-url
org-caldav-calendar-id my/caldav-id-suky
org-caldav-inbox "~/org/caldav/suky.org"
org-caldav-files '("~/org/calendar_outbox.org")
org-caldav-sync-direction 'twoway)
(org-caldav-sync)
;; 2. Placeholders (read-only)
(setq org-caldav-url "https://cal.apps.sukany.cz/dav.php/calendars/martin"
org-caldav-calendar-id "4C748EE5-ECFF-4D4A-A72E-6DE37BAADEB3"
(setq org-caldav-url my/caldav-url
org-caldav-calendar-id my/caldav-id-placeholders
org-caldav-inbox "~/org/caldav/placeholders.org"
org-caldav-files nil
org-caldav-sync-direction 'cal->org)
(org-caldav-sync)
;; 3. Family (read-only, shared via Baikal ACL)
(setq org-caldav-url "https://cal.apps.sukany.cz/dav.php/calendars/martin"
org-caldav-calendar-id "family"
(setq org-caldav-url my/caldav-url
org-caldav-calendar-id my/caldav-id-family
org-caldav-inbox "~/org/caldav/family.org"
org-caldav-files nil
org-caldav-sync-direction 'cal->org)
(org-caldav-sync)
;; 4. Klara (read-only, shared via Baikal ACL)
(setq org-caldav-url "https://cal.apps.sukany.cz/dav.php/calendars/martin"
org-caldav-calendar-id "klara"
(setq org-caldav-url my/caldav-url
org-caldav-calendar-id my/caldav-id-klara
org-caldav-inbox "~/org/caldav/klara.org"
org-caldav-files nil
org-caldav-sync-direction 'cal->org)
@@ -1586,7 +1643,6 @@ Skip for beamer exports — beamer uses adjustbox on plain tabular."
(message "CalDAV sync done: Suky + Placeholders + Family + Klara")))
(map! :leader "o c" #'my/org-caldav-sync)
;;; ============================================================
@@ -1775,7 +1831,6 @@ Formats matching what org-caldav/ox-icalendar export correctly:
:n "l" #'kubel-get-pod-logs
:n "d" #'kubel-describe-resource
:n "D" #'kubel-delete-resource))
(map! :leader "o k" #'kubel)
;;; ============================================================
@@ -1821,12 +1876,10 @@ Formats matching what org-caldav/ox-icalendar export correctly:
;;; ============================================================
(use-package! iedit :commands iedit-mode)
(map! :leader "s e" #'iedit-mode)
(use-package! vundo
:commands vundo
:config (setq vundo-glyph-alist vundo-unicode-symbols))
(map! :leader "u" #'vundo)
(use-package! breadcrumb
:hook ((prog-mode . breadcrumb-local-mode)
@@ -2031,7 +2084,6 @@ Formats matching what org-caldav/ox-icalendar export correctly:
(setq org-roam-ui-sync-theme t
org-roam-ui-follow t
org-roam-ui-update-on-save t))
(map! :leader "n r u" #'org-roam-ui-mode)
;;; ============================================================
@@ -2043,9 +2095,56 @@ Formats matching what org-caldav/ox-icalendar export correctly:
(expand-file-name "~/languagetool/languagetool-commandline.jar")
langtool-default-language "cs"
langtool-mother-tongue "cs"))
;;; ============================================================
;;; KEYBINDINGS — central reference
;;; ============================================================
;;; Standalone bindings (package-independent, safe to define top-level).
;;
;; The following bindings are defined near their packages (load-order sensitive):
;; SPC o r — elfeed (elfeed section)
;; SPC o n/N — org-noter (org-noter section)
;; SPC o C — calendar/calfw (calfw section)
;; SPC j k/K — link-hint (link-hint section)
;; SPC t o — olivetti (olivetti section)
;; SPC z +/= — zoom in/out (keybindings section below)
;; SPC o M — Matrix/ement (Matrix section)
;; SPC B b/i — bibliography/citar (bibliography section)
;; SPC s q/Q — org-ql (org-ql section)
;; SPC | di| ci| vi| — table cell objects (evil-org section)
(map! :leader
(:prefix ("z" . "zoom")
:desc "Zoom in (x1.5)" "+" #'my/zoom-in
:desc "Zoom in (x1.5)" "=" #'my/zoom-in
:desc "Zoom out (x1.5)" "-" #'my/zoom-out
:desc "Reset" "0" #'my/zoom-reset
:desc "Restore previous" "z" #'my/zoom-restore))
(map! :leader :desc "Elfeed" "o r" #'elfeed)
(map! :leader
(:prefix ("t" . "toggle")
:desc "Speech ON" "s" #'my/emacspeak-on
:desc "Speech OFF" "S" #'my/emacspeak-off))
(map! :leader
(:prefix ("h" . "help")
:desc "Describe bindings (buffer-local)" "B" #'describe-bindings))
(map! :leader "o k" #'kubel)
(map! :leader "s e" #'iedit-mode)
(map! :leader "u" #'vundo)
(map! :leader "n r u" #'org-roam-ui-mode)
(map! :leader
"t g" #'langtool-check
"t G" #'langtool-check-done)
(map! :leader "o c" #'my/org-caldav-sync)
;; gls
(setq insert-directory-program "gls")
;; Always enable macOS accessibility (VoiceOver + Zoom cursor tracking).
;; Override auto-detection so the AX tree is available from startup
;; regardless of whether an AT is currently active.
(when (eq system-type 'darwin)
(setq ns-accessibility-enabled t))

461
patches/0000-ns-integrate-with-macOS-Zoom-for-cursor-tracking.patch Normal file
View File

@@ -0,0 +1,461 @@
From fcc1826baee5b424d5fdc176239c5675aee6159b Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 22:39:35 +0100
Subject: [PATCH 1/9] ns: integrate with macOS Zoom for cursor tracking
Inform macOS Zoom of the text cursor position so the zoomed viewport
follows keyboard focus in Emacs. Also track completion candidates so
Zoom follows the selected item (Vertico, Corfu, etc.) during completion.
* etc/NEWS: Document Zoom integration.
* src/nsterm.h (EmacsView): Add lastCursorRect, zoomCursorUpdated.
* src/nsterm.m: Include ApplicationServices for UAZoomEnabled and
UAZoomChangeFocus (UniversalAccess sub-framework).
[NS_IMPL_COCOA]: Define NS_AX_MAX_COMPLETION_BUFFER_CHARS.
(ns_zoom_enabled_p): New static function; caches UAZoomEnabled with
1-second TTL to avoid per-frame Mach IPC overhead.
(ns_zoom_face_is_selected): New static predicate; matches 'current',
'selected', 'selection' in face symbol names.
(ns_zoom_find_overlay_candidate_line): New static function; scans
minibuffer overlays for the selected completion candidate line.
(ns_zoom_find_child_frame_candidate): New static function; scans
child frame buffers for a selected candidate; guards against partially
initialized frames with WINDOWP and BUFFERP checks.
(ns_zoom_track_completion): New static function; overrides Zoom focus
to the selected completion candidate after normal cursor tracking.
(ns_update_end): Call ns_zoom_track_completion.
(ns_draw_window_cursor): Store cursor rect; call UAZoomChangeFocus.
---
etc/NEWS | 11 ++
src/nsterm.h | 6 +
src/nsterm.m | 354 +++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 371 insertions(+)
diff --git a/etc/NEWS b/etc/NEWS
index 7367e3ccbd..4c149e41d6 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -82,6 +82,17 @@ other directory on your system. You can also invoke the
* Changes in Emacs 31.1
++++
+** The macOS NS port now integrates with macOS Zoom.
+When macOS Zoom is enabled (System Settings, Accessibility, Zoom,
+Follow keyboard focus), Emacs informs Zoom of the text cursor position
+after every cursor redraw via 'UAZoomChangeFocus'. The zoomed viewport
+automatically tracks the insertion point across window splits and
+switches. Completion frameworks (Vertico, Icomplete, Ivy for overlay
+candidates; Corfu, Company-box for child frame popups) are also
+tracked: Zoom follows the selected candidate rather than the text
+cursor during completion.
+
+++
** 'line-spacing' now supports specifying spacing above the line.
Previously, only spacing below the line could be specified. The user
diff --git a/src/nsterm.h b/src/nsterm.h
index 7c1ee4cf53..ea6e7ba4f5 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -484,6 +484,12 @@ enum ns_return_frame_mode
@public
struct frame *emacsframe;
int scrollbarsNeedingUpdate;
+#ifdef NS_IMPL_COCOA
+ /* Cached cursor rect for macOS Zoom integration. Set by
+ ns_draw_window_cursor, used by ns_update_end fallback. */
+ NSRect lastCursorRect;
+ BOOL zoomCursorUpdated;
+#endif
NSRect ns_userRect;
}
diff --git a/src/nsterm.m b/src/nsterm.m
index 932d209f56..88c9251c18 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -71,6 +71,11 @@ Updated by Christian Limpach (chris@nice.ch)
#include "macfont.h"
#include <Carbon/Carbon.h>
#include <IOSurface/IOSurface.h>
+/* ApplicationServices provides UAZoomEnabled and UAZoomChangeFocus
+ (UniversalAccess sub-framework). Carbon.h already pulls in
+ ApplicationServices on most SDK versions, but the explicit import
+ makes the dependency visible and guards against SDK changes. */
+#import <ApplicationServices/ApplicationServices.h>
#endif
static EmacsMenu *dockMenu;
@@ -1081,6 +1086,281 @@ static NSRect constrain_frame_rect(NSRect frameRect, bool isFullscreen)
}
+
+#ifdef NS_IMPL_COCOA
+#if defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
+ && MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
+
+/* Maximum buffer size (in characters) for a window that we consider
+ a candidate for a completion popup. Completion popups are small;
+ if the buffer is larger than this, it is not a popup and we skip it
+ to avoid O(buffer-size) work per redisplay cycle. */
+#define NS_AX_MAX_COMPLETION_BUFFER_CHARS 10000
+
+/* Cached wrapper around ns_zoom_enabled_p ().
+ ns_zoom_enabled_p () performs a synchronous Mach IPC roundtrip to the
+ macOS Accessibility server (~50-200 µs per call). With call sites
+ in ns_draw_window_cursor, ns_update_end, and ns_zoom_track_completion,
+ the overhead accumulates to ~150-600 µs per redisplay cycle. Zoom
+ state changes only on explicit user action in System Settings, so a
+ 1-second TTL is safe and indistinguishable from querying every frame.
+ Uses CFAbsoluteTimeGetCurrent() (~5 ns, a VDSO read) for timing. */
+static BOOL ns_zoom_cached_enabled;
+static CFAbsoluteTime ns_zoom_cache_time;
+
+static BOOL
+ns_zoom_enabled_p (void)
+{
+ CFAbsoluteTime now = CFAbsoluteTimeGetCurrent ();
+ if (now - ns_zoom_cache_time > 1.0)
+ {
+ ns_zoom_cached_enabled = UAZoomEnabled ();
+ ns_zoom_cache_time = now;
+ }
+ return ns_zoom_cached_enabled;
+}
+
+/* Identify faces that mark a selected completion candidate.
+ Matches vertico-current, corfu-current, icomplete-selected-match,
+ ivy-current-match, etc. by checking the face symbol name.
+ Defined here so the Zoom patch compiles independently of the
+ VoiceOver patches. */
+static bool
+ns_zoom_face_is_selected (Lisp_Object face)
+{
+ if (SYMBOLP (face))
+ {
+ const char *name = SSDATA (SYMBOL_NAME (face));
+ return (strstr (name, "current") != NULL
+ || strstr (name, "selected") != NULL
+ || strstr (name, "selection") != NULL);
+ }
+ if (CONSP (face))
+ {
+ Lisp_Object tail;
+ for (tail = face; CONSP (tail); tail = XCDR (tail))
+ if (ns_zoom_face_is_selected (XCAR (tail)))
+ return true;
+ }
+ return false;
+}
+
+/* Scan overlay before-string / after-string properties in the
+ selected window for a completion candidate with a "selected"
+ face. Return the 0-based visual line index of the selected
+ candidate, or -1 if none found. */
+static int
+ns_zoom_find_overlay_candidate_line (struct window *w)
+{
+ /* Overlay completion frameworks (Vertico, Icomplete, Ivy) place
+ candidates as overlay strings in the minibuffer only. Scanning
+ overlays in large normal buffers causes O(overlays) work per
+ redisplay --- return immediately for non-minibuffer windows. */
+ if (!MINI_WINDOW_P (w))
+ return -1;
+
+ struct buffer *b = XBUFFER (w->contents);
+ ptrdiff_t beg = marker_position (w->start);
+ ptrdiff_t end = BUF_ZV (b);
+ Lisp_Object overlays = Foverlays_in (make_fixnum (beg),
+ make_fixnum (end));
+ Lisp_Object tail;
+
+ for (tail = overlays; CONSP (tail); tail = XCDR (tail))
+ {
+ Lisp_Object ov = XCAR (tail);
+ Lisp_Object str = Foverlay_get (ov, Qbefore_string);
+
+ if (NILP (str))
+ str = Foverlay_get (ov, Qafter_string);
+ if (!STRINGP (str) || SCHARS (str) < 2)
+ continue;
+
+ /* Walk the string line by line, checking faces. */
+ ptrdiff_t len = SCHARS (str);
+ int line = 0;
+ ptrdiff_t line_start = 0;
+
+ for (ptrdiff_t i = 0; i <= len; i++)
+ {
+ bool at_newline = (i == len
+ || SREF (str, i) == '\n');
+ if (at_newline && i > line_start)
+ {
+ /* Check the face at line_start. */
+ Lisp_Object face
+ = Fget_text_property (make_fixnum (line_start),
+ Qface, str);
+ if (ns_zoom_face_is_selected (face))
+ return line;
+ line++;
+ line_start = i + 1;
+ }
+ else if (at_newline)
+ {
+ line++;
+ line_start = i + 1;
+ }
+ }
+ }
+ return -1;
+}
+
+/* Scan child frames for a completion popup with a selected
+ candidate. Return the 0-based line index, or -1 if none.
+ Set *CHILD_FRAME to the child frame if found. */
+static int
+ns_zoom_find_child_frame_candidate (struct frame *f,
+ struct frame **child_frame)
+{
+ Lisp_Object frame, tail;
+
+ FOR_EACH_FRAME (tail, frame)
+ {
+ struct frame *cf = XFRAME (frame);
+ if (!FRAME_NS_P (cf) || !FRAME_LIVE_P (cf))
+ continue;
+ if (FRAME_PARENT_FRAME (cf) != f)
+ continue;
+ /* Small buffer = likely completion popup. Guard against
+ partially initialized frames where selected_window or its
+ buffer may not yet be live. */
+ if (!WINDOWP (cf->selected_window))
+ continue;
+ struct window *cw = XWINDOW (cf->selected_window);
+ if (!BUFFERP (cw->contents))
+ continue;
+ struct buffer *b = XBUFFER (cw->contents);
+ if (BUF_ZV (b) - BUF_BEGV (b) > NS_AX_MAX_COMPLETION_BUFFER_CHARS)
+ continue;
+
+ ptrdiff_t beg = BUF_BEGV (b);
+ ptrdiff_t zv = BUF_ZV (b);
+ int line = 0;
+
+ specpdl_ref count = SPECPDL_INDEX ();
+ record_unwind_current_buffer ();
+ set_buffer_internal_1 (b);
+
+ ptrdiff_t pos = beg;
+ while (pos < zv)
+ {
+ Lisp_Object face
+ = Fget_char_property (make_fixnum (pos), Qface,
+ cw->contents);
+ if (ns_zoom_face_is_selected (face))
+ {
+ unbind_to (count, Qnil);
+ *child_frame = cf;
+ return line;
+ }
+ /* Advance to next line. */
+ ptrdiff_t next = find_newline (pos, -1, zv, -1,
+ 1, NULL, NULL, false);
+ if (next <= pos)
+ break;
+ pos = next;
+ line++;
+ }
+ unbind_to (count, Qnil);
+ }
+ return -1;
+}
+
+/* Update Zoom focus based on completion candidates.
+ Called from ns_update_end after normal cursor tracking.
+ If a completion candidate is selected (overlay or child frame),
+ move Zoom to that candidate instead of the text cursor. */
+static void
+ns_zoom_track_completion (struct frame *f, EmacsView *view)
+{
+ if (!ns_zoom_enabled_p ())
+ return;
+ if (!WINDOWP (f->selected_window))
+ return;
+ /* Child frames (e.g. the Corfu popup itself) have no children to
+ scan for completion candidates; their parent frame's ns_update_end
+ will scan them via FOR_EACH_FRAME. Return early to avoid a
+ redundant O(frames) scan on every child-frame redisplay cycle.
+ Note: the rate limit that was here caused corfu tracking to fail:
+ the child frame's ns_update_end reset the timer, so the parent
+ frame's subsequent ns_update_end returned early without scanning. */
+ if (FRAME_PARENT_FRAME (f))
+ return;
+
+ specpdl_ref count = SPECPDL_INDEX ();
+ record_unwind_current_buffer ();
+
+ struct window *w = XWINDOW (f->selected_window);
+ int line_h = FRAME_LINE_HEIGHT (f);
+
+ /* 1. Check overlay completions (Vertico, Icomplete, Ivy). */
+ int ov_line = ns_zoom_find_overlay_candidate_line (w);
+ if (ov_line >= 0)
+ {
+ /* Overlay candidates typically start after the input line,
+ so the visual offset is (ov_line + 1) * line_h from
+ the window top. */
+ int y_off = (ov_line + 1) * line_h;
+ if (y_off < w->pixel_height)
+ {
+ NSRect r = NSMakeRect (
+ WINDOW_TEXT_TO_FRAME_PIXEL_X (w, 0),
+ WINDOW_TO_FRAME_PIXEL_Y (w, y_off),
+ FRAME_COLUMN_WIDTH (f),
+ line_h);
+
+ NSRect windowRect = [view convertRect:r toView:nil];
+ NSRect screenRect
+ = [[view window] convertRectToScreen:windowRect];
+ CGRect cgRect = NSRectToCGRect (screenRect);
+ CGFloat primaryH
+ = [[[NSScreen screens] firstObject] frame].size.height;
+ cgRect.origin.y
+ = primaryH - cgRect.origin.y - cgRect.size.height;
+
+ UAZoomChangeFocus (&cgRect, &cgRect,
+ kUAZoomFocusTypeInsertionPoint);
+ unbind_to (count, Qnil);
+ return;
+ }
+ }
+
+ /* 2. Check child frame completions (Corfu, Company-box). */
+ struct frame *cf = NULL;
+ int cf_line = ns_zoom_find_child_frame_candidate (f, &cf);
+ if (cf_line >= 0 && cf)
+ {
+ EmacsView *cv = FRAME_NS_VIEW (cf);
+ struct window *cw
+ = XWINDOW (cf->selected_window);
+ int cf_line_h = FRAME_LINE_HEIGHT (cf);
+ int y_off = cf_line * cf_line_h;
+
+ NSRect r = NSMakeRect (
+ WINDOW_TEXT_TO_FRAME_PIXEL_X (cw, 0),
+ WINDOW_TO_FRAME_PIXEL_Y (cw, y_off),
+ FRAME_COLUMN_WIDTH (cf),
+ cf_line_h);
+
+ NSRect windowRect = [cv convertRect:r toView:nil];
+ NSRect screenRect
+ = [[cv window] convertRectToScreen:windowRect];
+ CGRect cgRect = NSRectToCGRect (screenRect);
+ CGFloat primaryH
+ = [[[NSScreen screens] firstObject] frame].size.height;
+ cgRect.origin.y
+ = primaryH - cgRect.origin.y - cgRect.size.height;
+
+ UAZoomChangeFocus (&cgRect, &cgRect,
+ kUAZoomFocusTypeInsertionPoint);
+ }
+ unbind_to (count, Qnil);
+}
+
+#endif /* MAC_OS_X_VERSION_MIN_REQUIRED >= 101000 */
+#endif /* NS_IMPL_COCOA */
+
static void
ns_update_end (struct frame *f)
/* --------------------------------------------------------------------------
@@ -1104,6 +1384,41 @@ static NSRect constrain_frame_rect(NSRect frameRect, bool isFullscreen)
unblock_input ();
ns_updating_frame = NULL;
+
+#ifdef NS_IMPL_COCOA
+ /* Zoom fallback: ensure Zoom tracks the cursor after window
+ switches (C-x o) where the physical cursor may not be redrawn.
+ Only fires when ns_draw_window_cursor did NOT run in this cycle
+ (zoomCursorUpdated is NO). */
+#if defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
+ && MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
+ if (view && !view->zoomCursorUpdated && ns_zoom_enabled_p ()
+ && !NSIsEmptyRect (view->lastCursorRect))
+ {
+ NSRect r = view->lastCursorRect;
+ NSRect windowRect = [view convertRect:r toView:nil];
+ NSRect screenRect
+ = [[view window] convertRectToScreen:windowRect];
+ CGRect cgRect = NSRectToCGRect (screenRect);
+
+ CGFloat primaryH
+ = [[[NSScreen screens] firstObject] frame].size.height;
+ cgRect.origin.y
+ = primaryH - cgRect.origin.y - cgRect.size.height;
+
+ UAZoomChangeFocus (&cgRect, &cgRect,
+ kUAZoomFocusTypeInsertionPoint);
+ }
+ if (view)
+ view->zoomCursorUpdated = NO;
+#endif
+
+ /* Track completion candidates for Zoom (overlay and child frame).
+ Runs after cursor tracking so the selected candidate overrides
+ the default cursor position. */
+ if (view)
+ ns_zoom_track_completion (f, view);
+#endif /* NS_IMPL_COCOA */
}
static void
@@ -3232,6 +3547,45 @@ Note that CURSOR_WIDTH is meaningful only for (h)bar cursors.
/* Prevent the cursor from being drawn outside the text area. */
r = NSIntersectionRect (r, ns_row_rect (w, glyph_row, TEXT_AREA));
+#ifdef NS_IMPL_COCOA
+ /* Zoom integration: inform macOS Zoom of the cursor position.
+ Zoom (System Settings -> Accessibility -> Zoom) tracks a focus
+ element to keep the zoomed viewport centered on the cursor.
+
+ Coordinate conversion:
+ EmacsView pixels (AppKit, flipped, top-left origin)
+ -> NSWindow (convertRect:toView:nil)
+ -> NSScreen (convertRectToScreen:)
+ -> CGRect with y-flip for CoreGraphics top-left origin. */
+ {
+ EmacsView *view = FRAME_NS_VIEW (f);
+ if (view && on_p && active_p)
+ {
+ view->lastCursorRect = r;
+ view->zoomCursorUpdated = YES;
+
+#if defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
+ && MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
+ if (ns_zoom_enabled_p ())
+ {
+ NSRect windowRect = [view convertRect:r toView:nil];
+ NSRect screenRect
+ = [[view window] convertRectToScreen:windowRect];
+ CGRect cgRect = NSRectToCGRect (screenRect);
+
+ CGFloat primaryH
+ = [[[NSScreen screens] firstObject] frame].size.height;
+ cgRect.origin.y
+ = primaryH - cgRect.origin.y - cgRect.size.height;
+
+ UAZoomChangeFocus (&cgRect, &cgRect,
+ kUAZoomFocusTypeInsertionPoint);
+ }
+#endif
+ }
+ }
+#endif /* NS_IMPL_COCOA */
+
ns_focus (f, NULL, 0);
NSGraphicsContext *ctx = [NSGraphicsContext currentContext];
--
2.43.0

707
patches/0001-ns-add-accessibility-base-classes-and-text-extractio.patch Normal file
View File

@@ -0,0 +1,707 @@
From 29546d323559dbbefd846f7b2720285ff90368c8 Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 12:58:11 +0100
Subject: [PATCH 2/9] ns: add accessibility base classes and text extraction
Add the foundation for macOS VoiceOver accessibility in the NS (Cocoa)
port. No existing code paths are modified.
* src/nsterm.h (ns_ax_visible_run): New struct.
(EmacsAccessibilityElement): New base Objective-C class.
(EmacsAccessibilityBuffer, EmacsAccessibilityModeLine)
(EmacsAccessibilityInteractiveSpan): Forward-declare new classes.
(EmacsAXSpanType): New enum for interactive span types.
(EmacsView): New ivars for accessibility element tree.
* src/nsterm.m: Include intervals.h for TEXT_PROP_MEANS_INVISIBLE.
(ns_ax_buffer_text): New function; build visible-text string and
run array for a window, skipping invisible character regions.
(ns_ax_mode_line_text): New function; extract mode-line text.
(ns_ax_frame_for_range): New function; map charpos range to screen
rect via glyph matrix.
(ns_ax_completion_string_from_prop)
(ns_ax_window_buffer_object, ns_ax_window_end_charpos)
(ns_ax_text_prop_at, ns_ax_next_prop_change)
(ns_ax_get_span_label, ns_ax_post_notification)
(ns_ax_post_notification_with_info): New helper functions.
(EmacsAccessibilityElement): Implement base class.
(syms_of_nsterm): Register accessibility DEFSYMs. Add DEFVAR_BOOL
ns-accessibility-enabled with corrected doc: initial value is nil,
set non-nil automatically when an AT is detected at startup.
---
src/nsterm.h | 131 ++++++++++++++
src/nsterm.m | 482 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 613 insertions(+)
diff --git a/src/nsterm.h b/src/nsterm.h
index ea6e7ba4f5..f245675513 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -453,6 +453,124 @@ enum ns_return_frame_mode
@end
+/* ==========================================================================
+
+ Accessibility virtual elements (macOS / Cocoa only)
+
+ ========================================================================== */
+
+#ifdef NS_IMPL_COCOA
+@class EmacsView;
+
+/* Base class for virtual accessibility elements attached to EmacsView. */
+@interface EmacsAccessibilityElement : NSAccessibilityElement
+@property (nonatomic, unsafe_unretained) EmacsView *emacsView;
+/* Lisp window object — safe across GC cycles.
+ GC safety: these Lisp_Objects are NOT visible to GC via staticpro
+ or the specpdl stack. This is safe because:
+ (1) Emacs GC runs only on the main thread, at well-defined safe
+ points during Lisp evaluation — never during redisplay.
+ (2) Accessibility elements are owned by EmacsView which belongs to
+ an active frame; windows referenced here are always reachable
+ from the frame's window tree until rebuildAccessibilityTree
+ updates them during the next redisplay cycle.
+ (3) AX getters dispatch_sync to main before accessing Lisp state,
+ so GC cannot run concurrently with any access to lispWindow.
+ (4) validWindow checks WINDOW_LIVE_P before dereferencing. */
+@property (nonatomic, assign) Lisp_Object lispWindow;
+- (struct window *)validWindow; /* Returns live window or NULL. */
+- (NSRect)screenRectFromEmacsX:(int)x y:(int)y width:(int)w height:(int)h;
+@end
+
+/* A visible run: maps a contiguous range of accessibility indices
+ to a contiguous range of buffer character positions. Invisible
+ text is skipped, so ax_start values are consecutive across runs
+ while charpos values may have gaps. */
+typedef struct ns_ax_visible_run
+{
+ ptrdiff_t charpos; /* Buffer charpos where this visible run starts. */
+ ptrdiff_t length; /* Number of visible Emacs characters in this run. */
+ NSUInteger ax_start; /* Starting index in the accessibility string. */
+ NSUInteger ax_length; /* Length in accessibility string (UTF-16 units). */
+} ns_ax_visible_run;
+
+/* Virtual AXTextArea element — one per visible Emacs window (buffer). */
+@interface EmacsAccessibilityBuffer
+ : EmacsAccessibilityElement <NSAccessibility>
+{
+ ns_ax_visible_run *visibleRuns;
+ NSUInteger visibleRunCount;
+ NSUInteger *lineStartOffsets; /* AX index for each line. */
+ NSUInteger lineCount; /* Entries in lineStartOffsets. */
+ NSMutableArray *cachedInteractiveSpans;
+ BOOL interactiveSpansDirty;
+}
+@property (nonatomic, retain) NSString *cachedText;
+@property (nonatomic, assign) ptrdiff_t cachedTextModiff;
+@property (nonatomic, assign) ptrdiff_t cachedOverlayModiff;
+@property (nonatomic, assign) ptrdiff_t cachedTextStart;
+@property (nonatomic, assign) ptrdiff_t cachedModiff;
+@property (nonatomic, assign) ptrdiff_t cachedPoint;
+@property (nonatomic, assign) BOOL cachedMarkActive;
+@property (nonatomic, copy) NSString *cachedCompletionAnnouncement;
+@property (nonatomic, assign) ptrdiff_t cachedCompletionOverlayStart;
+@property (nonatomic, assign) ptrdiff_t cachedCompletionOverlayEnd;
+@property (nonatomic, assign) ptrdiff_t cachedCompletionPoint;
+- (void)invalidateTextCache;
+- (NSInteger)lineForAXIndex:(NSUInteger)idx;
+- (NSRange)rangeForLine:(NSUInteger)line textLength:(NSUInteger)tlen;
+- (ptrdiff_t)charposForAccessibilityIndex:(NSUInteger)ax_idx;
+- (NSUInteger)accessibilityIndexForCharpos:(ptrdiff_t)charpos;
+@end
+
+@interface EmacsAccessibilityBuffer (Notifications)
+- (void)postTextChangedNotification:(ptrdiff_t)point;
+- (void)postAccessibilityNotificationsForFrame:(struct frame *)f;
+@end
+
+@interface EmacsAccessibilityBuffer (InteractiveSpans)
+- (void)invalidateInteractiveSpans;
+@end
+
+/* Virtual AXStaticText element — one per mode line. */
+@interface EmacsAccessibilityModeLine : EmacsAccessibilityElement
+@end
+
+/* Span types for interactive AX child elements. */
+typedef NS_ENUM(NSInteger, EmacsAXSpanType)
+{
+ EmacsAXSpanTypeNone = -1,
+ EmacsAXSpanTypeButton = 0,
+ EmacsAXSpanTypeLink = 1,
+ EmacsAXSpanTypeCompletionItem = 2,
+ EmacsAXSpanTypeWidget = 3,
+};
+
+/* A lightweight AX element representing one interactive text span
+ (button, link, checkbox, completion candidate, etc.) within a buffer
+ window. Exposed as AX child of EmacsAccessibilityBuffer so VoiceOver
+ Tab navigation can reach individual interactive elements. */
+@interface EmacsAccessibilityInteractiveSpan : EmacsAccessibilityElement
+
+@property (nonatomic, assign) ptrdiff_t charposStart;
+@property (nonatomic, assign) ptrdiff_t charposEnd;
+@property (nonatomic, assign) EmacsAXSpanType spanType;
+@property (nonatomic, copy) NSString *spanLabel;
+@property (nonatomic, copy) NSString *spanValue;
+@property (nonatomic, unsafe_unretained)
+ EmacsAccessibilityBuffer *parentBuffer;
+
+- (NSAccessibilityRole) accessibilityRole;
+- (NSString *) accessibilityLabel;
+- (NSRect) accessibilityFrame;
+- (BOOL) isAccessibilityElement;
+- (BOOL) isAccessibilityFocused;
+- (void) setAccessibilityFocused: (BOOL) focused;
+
+@end
+#endif /* NS_IMPL_COCOA */
+
+
/* ==========================================================================
The main Emacs view
@@ -471,6 +589,12 @@ enum ns_return_frame_mode
#ifdef NS_IMPL_COCOA
char *old_title;
BOOL maximizing_resize;
+ NSMutableArray *accessibilityElements;
+ /* See GC safety comment on EmacsAccessibilityElement.lispWindow. */
+ Lisp_Object lastSelectedWindow;
+ Lisp_Object lastRootWindow;
+ BOOL accessibilityTreeValid;
+ BOOL accessibilityUpdating;
#endif
BOOL font_panel_active;
NSFont *font_panel_result;
@@ -534,6 +658,13 @@ enum ns_return_frame_mode
- (void)windowWillExitFullScreen;
- (void)windowDidExitFullScreen;
- (void)windowDidBecomeKey;
+
+#ifdef NS_IMPL_COCOA
+/* Accessibility support. */
+- (void)rebuildAccessibilityTree;
+- (void)invalidateAccessibilityTree;
+- (void)postAccessibilityUpdates;
+#endif
@end
diff --git a/src/nsterm.m b/src/nsterm.m
index 88c9251c18..3b923ee5fa 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -46,6 +46,7 @@ Updated by Christian Limpach (chris@nice.ch)
#include "blockinput.h"
#include "sysselect.h"
#include "nsterm.h"
+#include "intervals.h" /* TEXT_PROP_MEANS_INVISIBLE */
#include "systime.h"
#include "character.h"
#include "xwidget.h"
@@ -7201,6 +7202,460 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
}
#endif
+/* ==========================================================================
+
+ Accessibility virtual elements (macOS / Cocoa only)
+
+ ========================================================================== */
+
+#ifdef NS_IMPL_COCOA
+
+/* ---- Helper: extract buffer text for accessibility ---- */
+
+/* Build accessibility text for window W, skipping invisible text.
+ Populates *OUT_START with the buffer start charpos.
+ Populates *OUT_RUNS with an array of visible runs and *OUT_NRUNS
+ with the count. Caller must free *OUT_RUNS with xfree(). */
+
+static NSString *
+ns_ax_buffer_text (struct window *w, ptrdiff_t *out_start,
+ ns_ax_visible_run **out_runs, NSUInteger *out_nruns)
+{
+ *out_runs = NULL;
+ *out_nruns = 0;
+
+ if (!w || !WINDOW_LEAF_P (w))
+ {
+ *out_start = 0;
+ return @"";
+ }
+
+ struct buffer *b = XBUFFER (w->contents);
+ if (!b)
+ {
+ *out_start = 0;
+ return @"";
+ }
+
+ ptrdiff_t begv = BUF_BEGV (b);
+ ptrdiff_t zv = BUF_ZV (b);
+
+ *out_start = begv;
+
+ if (zv <= begv)
+ return @"";
+
+ specpdl_ref count = SPECPDL_INDEX ();
+ record_unwind_current_buffer ();
+ /* block_input must come before record_unwind_protect_void (unblock_input):
+ if specpdl_push were to fail after registration, the unwind handler
+ would call unblock_input without a matching block_input. */
+ block_input ();
+ record_unwind_protect_void (unblock_input);
+ if (b != current_buffer)
+ set_buffer_internal_1 (b);
+
+ /* First pass: count visible runs to allocate the mapping array. */
+ NSUInteger run_capacity = 64;
+ ns_ax_visible_run *runs = xmalloc (run_capacity
+ * sizeof (ns_ax_visible_run));
+ NSUInteger nruns = 0;
+ NSUInteger ax_offset = 0;
+
+ NSMutableString *result = [NSMutableString string];
+ ptrdiff_t pos = begv;
+
+ while (pos < zv)
+ {
+ /* Check invisible property (text properties + overlays).
+ Use TEXT_PROP_MEANS_INVISIBLE which respects buffer-invisibility-spec,
+ matching the logic in xdisp.c. This correctly handles org-mode,
+ outline-mode, hideshow and any mode using spec-controlled
+ invisibility (not just `invisible t'). */
+ Lisp_Object invis = Fget_char_property (make_fixnum (pos),
+ Qinvisible, Qnil);
+ if (TEXT_PROP_MEANS_INVISIBLE (invis))
+ {
+ /* Skip to the next position where invisible changes. */
+ Lisp_Object next = Fnext_single_char_property_change (
+ make_fixnum (pos), Qinvisible, Qnil, make_fixnum (zv));
+ pos = FIXNUMP (next) ? XFIXNUM (next) : zv;
+ continue;
+ }
+
+ /* Find end of this visible run: where invisible property changes. */
+ Lisp_Object next = Fnext_single_char_property_change (
+ make_fixnum (pos), Qinvisible, Qnil, make_fixnum (zv));
+ ptrdiff_t run_end = FIXNUMP (next) ? XFIXNUM (next) : zv;
+
+ ptrdiff_t run_len = run_end - pos;
+
+ /* Extract this visible run's text. Use
+ Fbuffer_substring_no_properties which correctly handles the
+ buffer gap — raw BUF_BYTE_ADDRESS reads across the gap would
+ include garbage bytes when the run spans the gap position. */
+ Lisp_Object lstr = Fbuffer_substring_no_properties (
+ make_fixnum (pos), make_fixnum (run_end));
+ NSString *nsstr = [NSString stringWithLispString:lstr];
+ NSUInteger ns_len = [nsstr length];
+ [result appendString:nsstr];
+
+ /* Record this visible run in the mapping. */
+ if (nruns >= run_capacity)
+ {
+ run_capacity *= 2;
+ runs = xrealloc (runs, run_capacity
+ * sizeof (ns_ax_visible_run));
+ }
+ runs[nruns].charpos = pos;
+ runs[nruns].length = run_len;
+ runs[nruns].ax_start = ax_offset;
+ runs[nruns].ax_length = ns_len;
+ nruns++;
+
+ ax_offset += ns_len;
+ pos = run_end;
+ }
+
+ unbind_to (count, Qnil);
+
+ *out_runs = runs;
+ *out_nruns = nruns;
+ return result;
+}
+
+
+/* ---- Helper: extract mode line text from glyph rows ---- */
+
+/* TODO: Only CHAR_GLYPH characters (>= 32) are extracted. Image
+ glyphs, stretch glyphs, and composed glyphs are silently skipped.
+ Mode lines using icon fonts (e.g. nerd-font icons)
+ will produce incomplete accessibility text. */
+static NSString *
+ns_ax_mode_line_text (struct window *w)
+{
+ if (!w || !w->current_matrix)
+ return @"";
+
+ struct glyph_matrix *matrix = w->current_matrix;
+ NSMutableString *text = [NSMutableString string];
+
+ for (int i = 0; i < matrix->nrows; i++)
+ {
+ struct glyph_row *row = matrix->rows + i;
+ if (!row->enabled_p || !row->mode_line_p)
+ continue;
+
+ struct glyph *g = row->glyphs[TEXT_AREA];
+ struct glyph *end = g + row->used[TEXT_AREA];
+ for (; g < end; g++)
+ {
+ if (g->type == CHAR_GLYPH && g->u.ch >= 32)
+ {
+ unichar uch = (unichar) g->u.ch;
+ [text appendString:[NSString stringWithCharacters:&uch
+ length:1]];
+ }
+ }
+ }
+ return text;
+}
+
+
+/* ---- Helper: screen rect for a character range via glyph matrix ---- */
+
+static NSRect
+ns_ax_frame_for_range (struct window *w, EmacsView *view,
+ ptrdiff_t charpos_start,
+ ptrdiff_t charpos_len)
+{
+ if (!w || !w->current_matrix || !view)
+ return NSZeroRect;
+
+ /* charpos_start and charpos_len are already in buffer charpos
+ space — the caller maps AX string indices through
+ charposForAccessibilityIndex which handles invisible text. */
+ ptrdiff_t cp_start = charpos_start;
+ ptrdiff_t cp_end = cp_start + charpos_len;
+
+ struct glyph_matrix *matrix = w->current_matrix;
+ NSRect result = NSZeroRect;
+ BOOL found = NO;
+
+ for (int i = 0; i < matrix->nrows; i++)
+ {
+ struct glyph_row *row = matrix->rows + i;
+ if (!row->enabled_p || row->mode_line_p)
+ continue;
+ if (!row->displays_text_p && !row->ends_at_zv_p)
+ continue;
+
+ ptrdiff_t row_start = MATRIX_ROW_START_CHARPOS (row);
+ ptrdiff_t row_end = MATRIX_ROW_END_CHARPOS (row);
+
+ if (row_start < cp_end && row_end > cp_start)
+ {
+ int window_x, window_y, window_width;
+ window_box (w, TEXT_AREA, &window_x, &window_y,
+ &window_width, 0);
+
+ NSRect rowRect;
+ rowRect.origin.x = window_x;
+ rowRect.origin.y = WINDOW_TO_FRAME_PIXEL_Y (w, MAX (0, row->y));
+ rowRect.origin.y = MAX (rowRect.origin.y, window_y);
+ rowRect.size.width = window_width;
+ rowRect.size.height = row->height;
+
+ if (!found)
+ {
+ result = rowRect;
+ found = YES;
+ }
+ else
+ result = NSUnionRect (result, rowRect);
+ }
+ }
+
+ if (!found)
+ return NSZeroRect;
+
+ /* Clip result to text area bounds. */
+ {
+ int text_area_x, text_area_y, text_area_w, text_area_h;
+ window_box (w, TEXT_AREA, &text_area_x, &text_area_y,
+ &text_area_w, &text_area_h);
+ CGFloat max_y = WINDOW_TO_FRAME_PIXEL_Y (w, text_area_y + text_area_h);
+ if (NSMaxY (result) > max_y)
+ result.size.height = max_y - result.origin.y;
+ }
+
+ /* Convert from EmacsView (flipped) coords to screen coords. */
+ NSRect winRect = [view convertRect:result toView:nil];
+ return [[view window] convertRectToScreen:winRect];
+}
+
+/* AX enum numeric compatibility for NSAccessibility notifications.
+ Values match WebKit AXObjectCacheMac fallback enums
+ (AXTextStateChangeType / AXTextEditType / AXTextSelectionDirection /
+ AXTextSelectionGranularity). */
+enum {
+ ns_ax_text_state_change_unknown = 0,
+ ns_ax_text_state_change_edit = 1,
+ ns_ax_text_state_change_selection_move = 2,
+
+ ns_ax_text_edit_type_typing = 3,
+
+ ns_ax_text_selection_direction_unknown = 0,
+ ns_ax_text_selection_direction_previous = 3,
+ ns_ax_text_selection_direction_next = 4,
+ ns_ax_text_selection_direction_discontiguous = 5,
+
+ ns_ax_text_selection_granularity_unknown = 0,
+ ns_ax_text_selection_granularity_character = 1,
+ ns_ax_text_selection_granularity_word = 2,
+ ns_ax_text_selection_granularity_line = 3,
+};
+
+/* Extract announcement string from completion--string property value.
+ The property can be a plain Lisp string (simple completion) or
+ a list ("candidate" "annotation") for annotated completions.
+ Returns nil on failure. */
+static NSString *
+ns_ax_completion_string_from_prop (Lisp_Object cstr)
+{
+ if (STRINGP (cstr))
+ return [NSString stringWithLispString: cstr];
+ if (CONSP (cstr) && STRINGP (XCAR (cstr)))
+ return [NSString stringWithLispString: XCAR (cstr)];
+ return nil;
+}
+
+/* Return the Emacs buffer Lisp object for window W, or Qnil. */
+static Lisp_Object
+ns_ax_window_buffer_object (struct window *w)
+{
+ if (!w)
+ return Qnil;
+ if (!BUFFERP (w->contents))
+ return Qnil;
+ return w->contents;
+}
+
+/* Compute visible-end charpos for window W.
+ Emacs stores it as BUF_Z - window_end_pos.
+ Falls back to BUF_ZV when window_end_valid is false (e.g., when
+ called from an AX getter before the next redisplay cycle). */
+static ptrdiff_t
+ns_ax_window_end_charpos (struct window *w, struct buffer *b)
+{
+ if (!w->window_end_valid)
+ return BUF_ZV (b);
+ return BUF_Z (b) - w->window_end_pos;
+}
+
+/* Fetch text property PROP at charpos POS in BUF_OBJ. */
+static Lisp_Object
+ns_ax_text_prop_at (ptrdiff_t pos, Lisp_Object prop, Lisp_Object buf_obj)
+{
+ Lisp_Object plist = Ftext_properties_at (make_fixnum (pos), buf_obj);
+ /* Third argument to Fplist_get is PREDICATE (Emacs 29+), not a
+ default value. Qnil selects the default `eq' comparison. */
+ return Fplist_get (plist, prop, Qnil);
+}
+
+/* Next charpos where PROP changes, capped at LIMIT. */
+static ptrdiff_t
+ns_ax_next_prop_change (ptrdiff_t pos, Lisp_Object prop,
+ Lisp_Object buf_obj, ptrdiff_t limit)
+{
+ Lisp_Object result
+ = Fnext_single_property_change (make_fixnum (pos), prop,
+ buf_obj, make_fixnum (limit));
+ return FIXNUMP (result) ? XFIXNUM (result) : limit;
+}
+
+/* Build label for span [START, END) in BUF_OBJ.
+ Priority: completion--string → buffer text → help-echo. */
+static NSString *
+ns_ax_get_span_label (ptrdiff_t start, ptrdiff_t end,
+ Lisp_Object buf_obj)
+{
+ Lisp_Object cs = ns_ax_text_prop_at (start, Qns_ax_completion__string,
+ buf_obj);
+ if (STRINGP (cs))
+ return [NSString stringWithLispString: cs];
+
+ if (end > start)
+ {
+ Lisp_Object substr = Fbuffer_substring_no_properties (
+ make_fixnum (start), make_fixnum (end));
+ if (STRINGP (substr))
+ {
+ NSString *s = [NSString stringWithLispString: substr];
+ s = [s stringByTrimmingCharactersInSet:
+ [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+ if (s.length > 0)
+ return s;
+ }
+ }
+
+ Lisp_Object he = ns_ax_text_prop_at (start, Qhelp_echo, buf_obj);
+ if (STRINGP (he))
+ return [NSString stringWithLispString: he];
+
+ return @"";
+}
+
+/* Post AX notifications asynchronously to prevent deadlock.
+ NSAccessibilityPostNotification may synchronously invoke VoiceOver
+ callbacks that dispatch_sync back to the main queue. If we are
+ already on the main queue (e.g., inside postAccessibilityUpdates
+ called from ns_update_end), that dispatch_sync deadlocks.
+ Deferring via dispatch_async lets the current method return first,
+ freeing the main queue for VoiceOver's dispatch_sync calls. */
+
+/* Return true if FACE (a symbol or list of symbols) looks like a
+ "selected item" face. Substring match is intentionally broad ---
+ it catches vertico-current, icomplete-selected-match,
+ ivy-current-match, company-tooltip-selection, and similar.
+ False positives are harmless: this runs only on overlay/child-frame
+ strings during completion, never in a hot redisplay path. */
+static bool
+ns_ax_face_is_selected (Lisp_Object face)
+{
+ if (SYMBOLP (face) && !NILP (face))
+ {
+ const char *name = SSDATA (SYMBOL_NAME (face));
+ if (strstr (name, "current") || strstr (name, "selected")
+ || strstr (name, "selection"))
+ return true;
+ }
+ if (CONSP (face))
+ {
+ for (Lisp_Object tail = face; CONSP (tail); tail = XCDR (tail))
+ if (ns_ax_face_is_selected (XCAR (tail)))
+ return true;
+ }
+ return false;
+}
+
+static inline void
+ns_ax_post_notification (id element,
+ NSAccessibilityNotificationName name)
+{
+ dispatch_async (dispatch_get_main_queue (), ^{
+ NSAccessibilityPostNotification (element, name);
+ });
+}
+
+static inline void
+ns_ax_post_notification_with_info (id element,
+ NSAccessibilityNotificationName name,
+ NSDictionary *info)
+{
+ dispatch_async (dispatch_get_main_queue (), ^{
+ NSAccessibilityPostNotificationWithUserInfo (element, name, info);
+ });
+}
+
+@implementation EmacsAccessibilityElement
+
+- (instancetype)init
+{
+ self = [super init];
+ if (self)
+ self.lispWindow = Qnil;
+ return self;
+}
+
+/* Return the associated Emacs window if it is still live, else NULL.
+ Use this instead of storing a raw struct window * which can become a
+ dangling pointer after delete-window or kill-buffer. */
+- (struct window *)validWindow
+{
+ if (NILP (self.lispWindow) || !WINDOW_LIVE_P (self.lispWindow))
+ return NULL;
+ return XWINDOW (self.lispWindow);
+}
+
+- (NSRect)screenRectFromEmacsX:(int)x y:(int)y width:(int)ew height:(int)eh
+{
+ EmacsView *view = self.emacsView;
+ if (!view || ![view window])
+ return NSZeroRect;
+
+ NSRect r = NSMakeRect (x, y, ew, eh);
+ NSRect winRect = [view convertRect:r toView:nil];
+ return [[view window] convertRectToScreen:winRect];
+}
+
+- (BOOL)isAccessibilityElement
+{
+ return YES;
+}
+
+/* ---- Hierarchy plumbing (required for VoiceOver to find us) ---- */
+
+- (id)accessibilityParent
+{
+ return NSAccessibilityUnignoredAncestor (self.emacsView);
+}
+
+- (id)accessibilityWindow
+{
+ return [self.emacsView window];
+}
+
+- (id)accessibilityTopLevelUIElement
+{
+ return [self.emacsView window];
+}
+
+@end
+
+#endif /* NS_IMPL_COCOA */
+
+
/* ==========================================================================
EmacsView implementation
@@ -11657,6 +12112,24 @@ Convert an X font name (XLFD) to an NS font name.
DEFSYM (Qns_drag_operation_generic, "ns-drag-operation-generic");
DEFSYM (Qns_handle_drag_motion, "ns-handle-drag-motion");
+ /* Accessibility: line navigation command symbols for
+ ns_ax_event_is_line_nav_key (hot path, avoid intern per call). */
+ DEFSYM (Qns_ax_next_line, "next-line");
+ DEFSYM (Qns_ax_previous_line, "previous-line");
+ DEFSYM (Qns_ax_dired_next_line, "dired-next-line");
+ DEFSYM (Qns_ax_dired_previous_line, "dired-previous-line");
+
+ /* Accessibility span scanning symbols. */
+ DEFSYM (Qns_ax_widget, "widget");
+ DEFSYM (Qns_ax_button, "button");
+ DEFSYM (Qns_ax_follow_link, "follow-link");
+ DEFSYM (Qns_ax_org_link, "org-link");
+ DEFSYM (Qns_ax_completion_list_mode, "completion-list-mode");
+ DEFSYM (Qns_ax_completion__string, "completion--string");
+ DEFSYM (Qns_ax_completion, "completion");
+ DEFSYM (Qns_ax_completions_highlight, "completions-highlight");
+ DEFSYM (Qns_ax_backtab, "backtab");
+ /* Qmouse_face and Qkeymap are defined in textprop.c / keymap.c. */
Fput (Qalt, Qmodifier_value, make_fixnum (alt_modifier));
Fput (Qhyper, Qmodifier_value, make_fixnum (hyper_modifier));
Fput (Qmeta, Qmodifier_value, make_fixnum (meta_modifier));
@@ -11805,6 +12278,15 @@ Nil means use fullscreen the old (< 10.7) way. The old way works better with
This variable is ignored on Mac OS X < 10.7 and GNUstep. */);
ns_use_srgb_colorspace = YES;
+ DEFVAR_BOOL ("ns-accessibility-enabled", ns_accessibility_enabled,
+ doc: /* Non-nil means expose buffer content to the macOS accessibility
+subsystem (VoiceOver, Zoom, and other assistive technology).
+When nil, the accessibility virtual element tree is not built and no
+notifications are posted, eliminating the associated overhead.
+Requires the Cocoa (NS) build on macOS; ignored on GNUstep.
+Default is nil. Set to t to enable VoiceOver support. */);
+ ns_accessibility_enabled = NO;
+
DEFVAR_BOOL ("ns-use-mwheel-acceleration",
ns_use_mwheel_acceleration,
doc: /* Non-nil means use macOS's standard mouse wheel acceleration.
--
2.43.0

1570
patches/0001-ns-implement-AXBoundsForRange-for-macOS-Zoom-cursor-.patch
View File

File diff suppressed because it is too large Load Diff

1183
patches/0002-ns-implement-buffer-accessibility-element-core-proto.patch Normal file
View File

File diff suppressed because it is too large Load Diff

647
patches/0003-ns-add-buffer-notification-dispatch-and-mode-line-el.patch Normal file
View File

@@ -0,0 +1,647 @@
From d8a98fc40d8285c19e0a73a7e8a53778926b9836 Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 12:58:11 +0100
Subject: [PATCH 4/9] ns: add buffer notification dispatch and mode-line
element
Add VoiceOver notification dispatch and mode-line readout.
* src/nsterm.m (EmacsAccessibilityBuffer(Notifications)): New category.
(postTextChangedNotification:): Post NSAccessibilityValueChangedNotification
with AXTextEditType/AXTextChangeValue details.
(postFocusedCursorNotification:direction:granularity:markActive:
oldMarkActive:): Post NSAccessibilitySelectedTextChangedNotification
following the WebKit hybrid pattern; announce character at point for
character moves.
(postCompletionAnnouncementForBuffer:point:): Announce completion
candidates in non-focused (completion) buffers. Lisp/buffer
access is performed inside block_input; ObjC AX calls are made after
unblock_input to avoid holding block_input during @synchronized.
(postAccessibilityNotificationsForFrame:): Main dispatch entry point;
detects text edit, cursor/mark change, or overlay change.
(EmacsAccessibilityModeLine): Implement AXStaticText element for the
mode line.
---
src/nsterm.m | 606 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 606 insertions(+)
diff --git a/src/nsterm.m b/src/nsterm.m
index 41c6b8dc14..16343f978a 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -8788,6 +8788,612 @@ - (NSRect)accessibilityFrame
@end
+
+
+/* ===================================================================
+ EmacsAccessibilityBuffer (Notifications) — AX event dispatch
+
+ These methods notify VoiceOver of text and selection changes.
+ Called from the redisplay cycle (postAccessibilityUpdates).
+ =================================================================== */
+
+@implementation EmacsAccessibilityBuffer (Notifications)
+
+- (void)postTextChangedNotification:(ptrdiff_t)point
+{
+ /* Capture changed char before invalidating cache. */
+ NSString *changedChar = @"";
+ if (point > self.cachedPoint
+ && point - self.cachedPoint == 1)
+ {
+ /* Single char inserted — refresh cache and grab it. */
+ [self invalidateTextCache];
+ [self ensureTextCache];
+ if (cachedText)
+ {
+ NSUInteger idx = [self accessibilityIndexForCharpos:point - 1];
+ if (idx < [cachedText length])
+ changedChar = [cachedText substringWithRange:
+ NSMakeRange (idx, 1)];
+ }
+ }
+ else
+ {
+ [self invalidateTextCache];
+ }
+
+ /* Update cachedPoint here so the selection-move branch does NOT
+ fire for point changes caused by edits. WebKit and Chromium
+ never send both ValueChanged and SelectedTextChanged for the
+ same user action — they are mutually exclusive. */
+ self.cachedPoint = point;
+
+ NSDictionary *change = @{
+ @"AXTextEditType": @(ns_ax_text_edit_type_typing),
+ @"AXTextChangeValue": changedChar,
+ @"AXTextChangeValueLength": @([changedChar length])
+ };
+ NSDictionary *userInfo = @{
+ @"AXTextStateChangeType": @(ns_ax_text_state_change_edit),
+ @"AXTextChangeValues": @[change],
+ @"AXTextChangeElement": self
+ };
+ ns_ax_post_notification_with_info (
+ self, NSAccessibilityValueChangedNotification, userInfo);
+}
+
+/* Post SelectedTextChanged and AnnouncementRequested for the
+ focused buffer element when point or mark changes. */
+- (void)postFocusedCursorNotification:(ptrdiff_t)point
+ direction:(NSInteger)direction
+ granularity:(NSInteger)granularity
+ markActive:(BOOL)markActive
+ oldMarkActive:(BOOL)oldMarkActive
+{
+ BOOL isCharMove
+ = (!markActive && !oldMarkActive
+ && granularity
+ == ns_ax_text_selection_granularity_character);
+
+ /* Always post SelectedTextChanged to interrupt VoiceOver reading
+ and update cursor tracking / braille displays. */
+ NSMutableDictionary *moveInfo = [NSMutableDictionary dictionary];
+ moveInfo[@"AXTextStateChangeType"]
+ = @(ns_ax_text_state_change_selection_move);
+ moveInfo[@"AXTextSelectionDirection"] = @(direction);
+ moveInfo[@"AXTextChangeElement"] = self;
+ /* Omit granularity for character moves so VoiceOver does not
+ derive its own speech (it would read the wrong character
+ for block-cursor mode). Include it for word/line/
+ selection so VoiceOver reads the appropriate text. */
+ if (!isCharMove)
+ moveInfo[@"AXTextSelectionGranularity"] = @(granularity);
+
+ ns_ax_post_notification_with_info (
+ self,
+ NSAccessibilitySelectedTextChangedNotification,
+ moveInfo);
+
+ /* For character moves: explicit announcement of char AT point.
+ This is the ONLY speech source for character navigation.
+ Correct for block-cursor (cursor ON the character)
+ and harmless for insert-mode. */
+ if (isCharMove && cachedText)
+ {
+ NSUInteger point_idx
+ = [self accessibilityIndexForCharpos:point];
+ NSUInteger tlen = [cachedText length];
+ if (point_idx < tlen)
+ {
+ NSRange charRange = [cachedText
+ rangeOfComposedCharacterSequenceAtIndex: point_idx];
+ if (charRange.location != NSNotFound
+ && charRange.length > 0
+ && NSMaxRange (charRange) <= tlen)
+ {
+ NSString *ch
+ = [cachedText substringWithRange: charRange];
+ if (![ch isEqualToString: @"\n"])
+ {
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: ch,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+ }
+ }
+ }
+ }
+
+ /* For word moves: explicit announcement of word AT new point.
+ VO auto-speech from SelectedTextChanged with direction=next
+ and granularity=word reads the word that was traversed (the
+ source word), not the word arrived at. This explicit
+ announcement reads the destination word instead, matching
+ user expectation ("w" jumps to next word and reads it). */
+ BOOL isWordMove
+ = (!markActive && !oldMarkActive
+ && granularity == ns_ax_text_selection_granularity_word
+ && direction == ns_ax_text_selection_direction_discontiguous);
+ if (isWordMove && cachedText)
+ {
+ NSCharacterSet *ws
+ = [NSCharacterSet whitespaceAndNewlineCharacterSet];
+ NSUInteger point_idx
+ = [self accessibilityIndexForCharpos:point];
+ NSUInteger tlen = [cachedText length];
+ if (point_idx < tlen
+ && ![ws characterIsMember:
+ [cachedText characterAtIndex:point_idx]])
+ {
+ /* Find word boundaries around point. */
+ NSUInteger wstart = point_idx;
+ while (wstart > 0
+ && ![ws characterIsMember:
+ [cachedText characterAtIndex:wstart - 1]])
+ wstart--;
+ NSUInteger wend = point_idx;
+ while (wend < tlen
+ && ![ws characterIsMember:
+ [cachedText characterAtIndex:wend]])
+ wend++;
+ if (wend > wstart)
+ {
+ NSString *word
+ = [cachedText substringWithRange:
+ NSMakeRange (wstart, wend - wstart)];
+ NSMutableCharacterSet *trims
+ = [ws mutableCopy];
+ [trims formUnionWithCharacterSet:
+ [NSCharacterSet punctuationCharacterSet]];
+ word = [word stringByTrimmingCharactersInSet:trims];
+ [trims release];
+ if ([word length] > 0)
+ {
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: word,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+ }
+ }
+ }
+ }
+
+ /* For focused line moves: always announce line text explicitly.
+ SelectedTextChanged with granularity=line works for arrow keys,
+ but C-n/C-p need the explicit announcement (VoiceOver processes
+ these keystrokes differently from arrows).
+ In completion-list-mode, read the completion candidate instead
+ of the whole line. */
+ if (cachedText
+ && granularity == ns_ax_text_selection_granularity_line)
+ {
+ NSString *announceText = nil;
+
+ /* 1. completion--string at point. */
+ Lisp_Object cstr
+ = Fget_char_property (make_fixnum (point),
+ Qns_ax_completion__string, Qnil);
+ announceText = ns_ax_completion_string_from_prop (cstr);
+
+ /* 2. Fallback: full line text. */
+ if (!announceText)
+ {
+ NSUInteger point_idx
+ = [self accessibilityIndexForCharpos:point];
+ if (point_idx <= [cachedText length])
+ {
+ NSInteger lineNum
+ = [self accessibilityLineForIndex:point_idx];
+ NSRange lineRange
+ = [self accessibilityRangeForLine:lineNum];
+ if (lineRange.location != NSNotFound
+ && lineRange.length > 0
+ && NSMaxRange (lineRange) <= [cachedText length])
+ announceText
+ = [cachedText substringWithRange:lineRange];
+ }
+ }
+
+ if (announceText)
+ {
+ announceText = [announceText
+ stringByTrimmingCharactersInSet:
+ [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+ if ([announceText length] > 0)
+ {
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: announceText,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+ }
+ }
+ }
+}
+
+/* Post AnnouncementRequested for non-focused buffers (typically
+ *Completions* while minibuffer has keyboard focus).
+ VoiceOver does not automatically read changes in non-focused
+ elements, so we announce the selected completion explicitly. */
+- (void)postCompletionAnnouncementForBuffer:(struct buffer *)b
+ point:(ptrdiff_t)point
+{
+ NSString *announceText = nil;
+ ptrdiff_t currentOverlayStart = 0;
+ ptrdiff_t currentOverlayEnd = 0;
+
+ block_input ();
+ specpdl_ref count2 = SPECPDL_INDEX ();
+ record_unwind_protect_void (unblock_input);
+ record_unwind_current_buffer ();
+ if (b != current_buffer)
+ set_buffer_internal_1 (b);
+
+ /* 1) Prefer explicit completion candidate property. */
+ Lisp_Object cstr = Fget_char_property (make_fixnum (point),
+ Qns_ax_completion__string,
+ Qnil);
+ announceText = ns_ax_completion_string_from_prop (cstr);
+
+ /* 2) Fallback: mouse-face span at point. */
+ if (!announceText)
+ {
+ Lisp_Object mf = Fget_char_property (make_fixnum (point),
+ Qmouse_face, Qnil);
+ if (!NILP (mf))
+ {
+ ptrdiff_t begv2 = BUF_BEGV (b);
+ ptrdiff_t zv2 = BUF_ZV (b);
+
+ Lisp_Object prev_change
+ = Fprevious_single_char_property_change (
+ make_fixnum (point + 1), Qmouse_face,
+ Qnil, make_fixnum (begv2));
+ ptrdiff_t s2
+ = FIXNUMP (prev_change) ? XFIXNUM (prev_change)
+ : begv2;
+
+ Lisp_Object next_change
+ = Fnext_single_char_property_change (
+ make_fixnum (point), Qmouse_face,
+ Qnil, make_fixnum (zv2));
+ ptrdiff_t e2
+ = FIXNUMP (next_change) ? XFIXNUM (next_change)
+ : zv2;
+
+ if (e2 > s2)
+ {
+ NSUInteger ax_s = [self accessibilityIndexForCharpos:s2];
+ NSUInteger ax_e = [self accessibilityIndexForCharpos:e2];
+ if (ax_e > ax_s && ax_e <= [cachedText length])
+ announceText = [cachedText substringWithRange:
+ NSMakeRange (ax_s, ax_e - ax_s)];
+ }
+ }
+ }
+
+ /* 3) Fallback: completions-highlight overlay at point. */
+ if (!announceText)
+ {
+ Lisp_Object faceSym = Qns_ax_completions_highlight;
+ Lisp_Object overlays = Foverlays_at (make_fixnum (point), Qnil);
+ Lisp_Object tail;
+ for (tail = overlays; CONSP (tail); tail = XCDR (tail))
+ {
+ Lisp_Object ov = XCAR (tail);
+ Lisp_Object face = Foverlay_get (ov, Qface);
+ if (EQ (face, faceSym)
+ || (CONSP (face)
+ && !NILP (Fmemq (faceSym, face))))
+ {
+ ptrdiff_t ov_start = OVERLAY_START (ov);
+ ptrdiff_t ov_end = OVERLAY_END (ov);
+ if (ov_end > ov_start)
+ {
+ announceText = ns_ax_completion_text_for_span (self, b,
+ ov_start,
+ ov_end,
+ cachedText);
+ currentOverlayStart = ov_start;
+ currentOverlayEnd = ov_end;
+ }
+ break;
+ }
+ }
+ }
+
+ /* 4) Fallback: nearest completions-highlight overlay. */
+ if (!announceText)
+ {
+ ptrdiff_t ov_start = 0;
+ ptrdiff_t ov_end = 0;
+ if (ns_ax_find_completion_overlay_range (b, point,
+ &ov_start, &ov_end))
+ {
+ announceText = ns_ax_completion_text_for_span (self, b,
+ ov_start, ov_end,
+ cachedText);
+ currentOverlayStart = ov_start;
+ currentOverlayEnd = ov_end;
+ }
+ }
+
+ unbind_to (count2, Qnil);
+
+ /* Final fallback: read current line at point. */
+ if (!announceText)
+ {
+ NSUInteger point_idx = [self accessibilityIndexForCharpos:point];
+ if (point_idx <= [cachedText length])
+ {
+ NSInteger lineNum = [self accessibilityLineForIndex:
+ point_idx];
+ NSRange lineRange = [self accessibilityRangeForLine:lineNum];
+ if (lineRange.location != NSNotFound
+ && lineRange.length > 0
+ && lineRange.location + lineRange.length
+ <= [cachedText length])
+ announceText = [cachedText substringWithRange:lineRange];
+ }
+ }
+
+ /* Deduplicate: post only when text, overlay, or point changed. */
+ if (announceText)
+ {
+ announceText = [announceText stringByTrimmingCharactersInSet:
+ [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+ if ([announceText length] > 0)
+ {
+ BOOL textChanged = ![announceText isEqualToString:
+ self.cachedCompletionAnnouncement];
+ BOOL overlayChanged =
+ (currentOverlayStart != self.cachedCompletionOverlayStart
+ || currentOverlayEnd != self.cachedCompletionOverlayEnd);
+ BOOL pointChanged = (point != self.cachedCompletionPoint);
+ if (textChanged || overlayChanged || pointChanged)
+ {
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: announceText,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+ }
+ self.cachedCompletionAnnouncement = announceText;
+ self.cachedCompletionOverlayStart = currentOverlayStart;
+ self.cachedCompletionOverlayEnd = currentOverlayEnd;
+ self.cachedCompletionPoint = point;
+ }
+ else
+ {
+ self.cachedCompletionAnnouncement = nil;
+ self.cachedCompletionOverlayStart = 0;
+ self.cachedCompletionOverlayEnd = 0;
+ self.cachedCompletionPoint = 0;
+ }
+ }
+ else
+ {
+ self.cachedCompletionAnnouncement = nil;
+ self.cachedCompletionOverlayStart = 0;
+ self.cachedCompletionOverlayEnd = 0;
+ self.cachedCompletionPoint = 0;
+ }
+}
+
+/* ---- Notification dispatch (main entry point) ---- */
+
+/* Dispatch accessibility notifications after a redisplay cycle.
+ Detects three mutually exclusive events: text edit, cursor/mark
+ change, or no change. Delegates to helper methods above. */
+- (void)postAccessibilityNotificationsForFrame:(struct frame *)f
+{
+ NSTRACE ("[EmacsView postAccessibilityNotificationsForFrame:]");
+ struct window *w = [self validWindow];
+ if (!w || !WINDOW_LEAF_P (w))
+ return;
+
+ struct buffer *b = XBUFFER (w->contents);
+ if (!b)
+ return;
+
+ ptrdiff_t modiff = BUF_MODIFF (b);
+ ptrdiff_t point = BUF_PT (b);
+ BOOL markActive = !NILP (BVAR (b, mark_active));
+
+ /* --- Text changed (edit) --- */
+ if (modiff != self.cachedModiff)
+ {
+ self.cachedModiff = modiff;
+ [self postTextChangedNotification:point];
+ }
+
+ /* --- Cursor moved or selection changed ---
+ Use 'else if' — edits and selection moves are mutually exclusive
+ per the WebKit/Chromium pattern. */
+ else if (point != self.cachedPoint || markActive != self.cachedMarkActive)
+ {
+ ptrdiff_t oldPoint = self.cachedPoint;
+ BOOL oldMarkActive = self.cachedMarkActive;
+ self.cachedPoint = point;
+ self.cachedMarkActive = markActive;
+
+ /* Compute direction. */
+ NSInteger direction = ns_ax_text_selection_direction_discontiguous;
+ if (point > oldPoint)
+ direction = ns_ax_text_selection_direction_next;
+ else if (point < oldPoint)
+ direction = ns_ax_text_selection_direction_previous;
+
+ int ctrlNP = 0;
+ bool isCtrlNP = ns_ax_event_is_line_nav_key (&ctrlNP);
+
+ /* --- Granularity detection --- */
+ NSInteger granularity = ns_ax_text_selection_granularity_unknown;
+ [self ensureTextCache];
+ if (cachedText && oldPoint > 0)
+ {
+ NSUInteger tlen = [cachedText length];
+ NSUInteger oldIdx = [self accessibilityIndexForCharpos:oldPoint];
+ NSUInteger newIdx = [self accessibilityIndexForCharpos:point];
+ if (oldIdx > tlen) oldIdx = tlen;
+ if (newIdx > tlen) newIdx = tlen;
+
+ NSRange oldLine = [cachedText lineRangeForRange:
+ NSMakeRange (oldIdx, 0)];
+ NSRange newLine = [cachedText lineRangeForRange:
+ NSMakeRange (newIdx, 0)];
+ if (oldLine.location != newLine.location)
+ granularity = ns_ax_text_selection_granularity_line;
+ else
+ {
+ NSUInteger dist = (newIdx > oldIdx
+ ? newIdx - oldIdx
+ : oldIdx - newIdx);
+ if (dist > 1)
+ granularity = ns_ax_text_selection_granularity_word;
+ else if (dist == 1)
+ granularity = ns_ax_text_selection_granularity_character;
+ }
+ }
+
+ /* Force line semantics for explicit C-n/C-p / Tab / backtab. */
+ if (isCtrlNP)
+ {
+ direction = (ctrlNP > 0
+ ? ns_ax_text_selection_direction_next
+ : ns_ax_text_selection_direction_previous);
+ granularity = ns_ax_text_selection_granularity_line;
+ }
+
+ /* Post notifications for focused and non-focused elements. */
+ if ([self isAccessibilityFocused])
+ [self postFocusedCursorNotification:point
+ direction:direction
+ granularity:granularity
+ markActive:markActive
+ oldMarkActive:oldMarkActive];
+
+ if (![self isAccessibilityFocused] && cachedText)
+ [self postCompletionAnnouncementForBuffer:b point:point];
+ }
+ else
+ {
+ /* Nothing changed. Reset completion cache for focused buffer
+ to avoid stale announcements. */
+ if ([self isAccessibilityFocused])
+ {
+ self.cachedCompletionAnnouncement = nil;
+ self.cachedCompletionOverlayStart = 0;
+ self.cachedCompletionOverlayEnd = 0;
+ self.cachedCompletionPoint = 0;
+ }
+ }
+}
+
+@end
+
+
+@implementation EmacsAccessibilityModeLine
+
+- (NSAccessibilityRole)accessibilityRole
+{
+ return NSAccessibilityStaticTextRole;
+}
+
+- (NSString *)accessibilityLabel
+{
+ if (![NSThread isMainThread])
+ {
+ __block NSString *result;
+ dispatch_sync (dispatch_get_main_queue (), ^{
+ result = [self accessibilityLabel];
+ });
+ return result;
+ }
+ struct window *w = [self validWindow];
+ if (w && WINDOW_LEAF_P (w))
+ {
+ struct buffer *b = XBUFFER (w->contents);
+ if (b)
+ {
+ Lisp_Object name = BVAR (b, name);
+ if (STRINGP (name))
+ {
+ NSString *bufName = [NSString stringWithLispString:name];
+ return [NSString stringWithFormat:@"Mode Line - %@", bufName];
+ }
+ }
+ }
+ return @"Mode Line";
+}
+
+- (id)accessibilityValue
+{
+ if (![NSThread isMainThread])
+ {
+ __block id result;
+ dispatch_sync (dispatch_get_main_queue (), ^{
+ result = [self accessibilityValue];
+ });
+ return result;
+ }
+ struct window *w = [self validWindow];
+ if (!w)
+ return @"";
+ return ns_ax_mode_line_text (w);
+}
+
+- (NSRect)accessibilityFrame
+{
+ if (![NSThread isMainThread])
+ {
+ __block NSRect result;
+ dispatch_sync (dispatch_get_main_queue (), ^{
+ result = [self accessibilityFrame];
+ });
+ return result;
+ }
+ struct window *w = [self validWindow];
+ if (!w || !w->current_matrix)
+ return NSZeroRect;
+
+ /* Find the mode line row and return its screen rect. */
+ struct glyph_matrix *matrix = w->current_matrix;
+ for (int i = 0; i < matrix->nrows; i++)
+ {
+ struct glyph_row *row = matrix->rows + i;
+ if (row->enabled_p && row->mode_line_p)
+ {
+ return [self screenRectFromEmacsX:w->pixel_left
+ y:WINDOW_TO_FRAME_PIXEL_Y (w,
+ MAX (0, row->y))
+ width:w->pixel_width
+ height:row->visible_height];
+ }
+ }
+ return NSZeroRect;
+}
+
+@end
+
#endif /* NS_IMPL_COCOA */
--
2.43.0

344
patches/0004-ns-add-interactive-span-elements-for-Tab-navigation.patch Normal file
View File

@@ -0,0 +1,344 @@
From 9c233aa400c2769e1621ec37f326d1e24c0da2df Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 12:58:11 +0100
Subject: [PATCH 5/9] ns: add interactive span elements for Tab navigation
* src/nsterm.m (ns_ax_scan_interactive_spans): New function; scans the
visible portion of a buffer for interactive text properties
(ns-ax-widget, ns-ax-button, ns-ax-follow-link, ns-ax-org-link,
mouse-face, overlay keymap) and builds EmacsAccessibilityInteractiveSpan
elements.
(EmacsAccessibilityInteractiveSpan): Implement AXButton and AXLink
elements with an AXPress action that sends a synthetic TAB keystroke.
(EmacsAccessibilityBuffer(InteractiveSpans)): New category.
(accessibilityChildrenInNavigationOrder): Return cached span array,
rebuilding lazily when interactiveSpansDirty is set.
---
src/nsterm.m | 302 ++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 298 insertions(+), 4 deletions(-)
diff --git a/src/nsterm.m b/src/nsterm.m
index 16343f978a..f5e5cea074 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -8669,12 +8669,12 @@ - (NSRange)accessibilityRangeForPosition:(NSPoint)screenPoint
return NSMakeRange (0, 0);
/* Block input to prevent concurrent redisplay from modifying the
- glyph matrix while we traverse it. Use specpdl unwind protection
- so block_input is always matched by unblock_input, even if
- ensureTextCache triggers a Lisp signal (longjmp). */
+ glyph matrix while we traverse it. block_input must come before
+ record_unwind_protect_void (unblock_input) so that the unwind
+ handler is never called without a matching block_input. */
specpdl_ref count = SPECPDL_INDEX ();
- record_unwind_protect_void (unblock_input);
block_input ();
+ record_unwind_protect_void (unblock_input);
/* Find the glyph row at this y coordinate. */
struct glyph_matrix *matrix = w->current_matrix;
@@ -9394,6 +9394,300 @@ - (NSRect)accessibilityFrame
@end
+
+
+/* ===================================================================
+ EmacsAccessibilityInteractiveSpan --- helpers and implementation
+ =================================================================== */
+
+/* Scan visible range of window W for interactive spans.
+ Returns NSArray<EmacsAccessibilityInteractiveSpan *>.
+
+ Priority when properties overlap:
+ widget > button > follow-link > org-link >
+ completion-candidate > keymap-overlay. */
+static NSArray *
+ns_ax_scan_interactive_spans (struct window *w,
+ EmacsAccessibilityBuffer *parent_buf)
+{
+ if (!w)
+ return @[];
+
+ Lisp_Object buf_obj = ns_ax_window_buffer_object (w);
+ if (NILP (buf_obj))
+ return @[];
+
+ struct buffer *b = XBUFFER (buf_obj);
+ ptrdiff_t vis_start = marker_position (w->start);
+ ptrdiff_t vis_end = ns_ax_window_end_charpos (w, b);
+
+ if (vis_start < BUF_BEGV (b)) vis_start = BUF_BEGV (b);
+ if (vis_end > BUF_ZV (b)) vis_end = BUF_ZV (b);
+ if (vis_start >= vis_end)
+ return @[];
+
+ block_input ();
+ specpdl_ref blk_count = SPECPDL_INDEX ();
+ record_unwind_protect_void (unblock_input);
+
+ /* Symbols are interned once at startup via DEFSYM in syms_of_nsterm;
+ reference them directly here (GC-safe, no repeated obarray lookup). */
+
+ BOOL is_completion_buf
+ = EQ (BVAR (b, major_mode), Qns_ax_completion_list_mode);
+
+ NSMutableArray *spans = [NSMutableArray array];
+ ptrdiff_t pos = vis_start;
+
+ while (pos < vis_end)
+ {
+ Lisp_Object plist = Ftext_properties_at (make_fixnum (pos), buf_obj);
+ EmacsAXSpanType span_type = EmacsAXSpanTypeNone;
+ Lisp_Object limit_prop = Qnil;
+
+ /* Fplist_get third arg Qnil: use `eq' predicate (the default). */
+ if (!NILP (Fplist_get (plist, Qns_ax_widget, Qnil)))
+ {
+ span_type = EmacsAXSpanTypeWidget;
+ limit_prop = Qns_ax_widget;
+ }
+ else if (!NILP (Fplist_get (plist, Qns_ax_button, Qnil)))
+ {
+ span_type = EmacsAXSpanTypeButton;
+ limit_prop = Qns_ax_button;
+ }
+ else if (!NILP (Fplist_get (plist, Qns_ax_follow_link, Qnil)))
+ {
+ span_type = EmacsAXSpanTypeLink;
+ limit_prop = Qns_ax_follow_link;
+ }
+ else if (!NILP (Fplist_get (plist, Qns_ax_org_link, Qnil)))
+ {
+ span_type = EmacsAXSpanTypeLink;
+ limit_prop = Qns_ax_org_link;
+ }
+ else if (is_completion_buf
+ && !NILP (Fplist_get (plist, Qmouse_face, Qnil)))
+ {
+ /* For completions, use completion--string as boundary so we
+ don't accidentally merge two column-adjacent candidates
+ whose mouse-face regions may share padding whitespace.
+ Fall back to mouse-face if completion--string is absent. */
+ Lisp_Object cs_sym = Qns_ax_completion__string;
+ Lisp_Object cs_val = ns_ax_text_prop_at (pos, cs_sym, buf_obj);
+ span_type = EmacsAXSpanTypeCompletionItem;
+ limit_prop = NILP (cs_val) ? Qmouse_face : cs_sym;
+ }
+ else
+ {
+ /* Check overlays for keymap. */
+ Lisp_Object ovs
+ = Foverlays_in (make_fixnum (pos), make_fixnum (pos + 1));
+ while (CONSP (ovs))
+ {
+ if (!NILP (Foverlay_get (XCAR (ovs), Qkeymap)))
+ {
+ span_type = EmacsAXSpanTypeButton;
+ limit_prop = Qkeymap;
+ break;
+ }
+ ovs = XCDR (ovs);
+ }
+ }
+
+ if (span_type == EmacsAXSpanTypeNone)
+ {
+ /* Skip to the next position where any interactive property
+ changes. Try each scannable property in turn and take
+ the nearest change point --- O(properties) per gap rather
+ than O(chars). Fall back to pos+1 as safety net. */
+ ptrdiff_t next_interesting = vis_end;
+ Lisp_Object skip_props[5]
+ = { Qns_ax_widget, Qns_ax_button, Qns_ax_follow_link,
+ Qns_ax_org_link, Qmouse_face };
+ for (int sp = 0; sp < 5; sp++)
+ {
+ ptrdiff_t np
+ = ns_ax_next_prop_change (pos, skip_props[sp],
+ buf_obj, vis_end);
+ if (np > pos && np < next_interesting)
+ next_interesting = np;
+ }
+ /* Also check overlay keymap changes. */
+ Lisp_Object np_ov
+ = Fnext_single_char_property_change (make_fixnum (pos),
+ Qkeymap, buf_obj,
+ make_fixnum (vis_end));
+ if (FIXNUMP (np_ov))
+ {
+ ptrdiff_t npv = XFIXNUM (np_ov);
+ if (npv > pos && npv < next_interesting)
+ next_interesting = npv;
+ }
+ pos = (next_interesting > pos) ? next_interesting : pos + 1;
+ continue;
+ }
+
+ ptrdiff_t span_end = !NILP (limit_prop)
+ ? ns_ax_next_prop_change (pos, limit_prop, buf_obj, vis_end)
+ : pos + 1;
+
+ if (span_end > vis_end) span_end = vis_end;
+ if (span_end <= pos) span_end = pos + 1;
+
+ EmacsAccessibilityInteractiveSpan *span
+ = [[EmacsAccessibilityInteractiveSpan alloc] init];
+ span.charposStart = pos;
+ span.charposEnd = span_end;
+ span.spanType = span_type;
+ span.parentBuffer = parent_buf;
+ span.emacsView = parent_buf.emacsView;
+ span.lispWindow = parent_buf.lispWindow;
+ span.spanLabel = ns_ax_get_span_label (pos, span_end, buf_obj);
+
+ [spans addObject: span];
+ [span release];
+
+ pos = span_end;
+ }
+
+ unbind_to (blk_count, Qnil);
+ return [[spans copy] autorelease];
+}
+
+@implementation EmacsAccessibilityInteractiveSpan
+@synthesize spanLabel;
+@synthesize spanValue;
+
+- (void)dealloc
+{
+ [spanLabel release];
+ [spanValue release];
+ [super dealloc];
+}
+
+- (BOOL) isAccessibilityElement { return YES; }
+
+- (NSAccessibilityRole) accessibilityRole
+{
+ switch (self.spanType)
+ {
+ case EmacsAXSpanTypeLink: return NSAccessibilityLinkRole;
+ default: return NSAccessibilityButtonRole;
+ }
+}
+
+- (NSString *) accessibilityLabel { return self.spanLabel ?: @""; }
+- (NSString *) accessibilityValue { return self.spanValue; }
+
+- (NSRect) accessibilityFrame
+{
+ EmacsAccessibilityBuffer *pb = self.parentBuffer;
+ if (!pb || ![self validWindow])
+ return NSZeroRect;
+ NSUInteger ax_s = [pb accessibilityIndexForCharpos: self.charposStart];
+ NSUInteger ax_e = [pb accessibilityIndexForCharpos: self.charposEnd];
+ if (ax_e < ax_s) ax_e = ax_s;
+ return [pb accessibilityFrameForRange: NSMakeRange (ax_s, ax_e - ax_s)];
+}
+
+- (BOOL) isAccessibilityFocused
+{
+ /* Read the cached point stored by EmacsAccessibilityBuffer on the main
+ thread --- safe to read from any thread (plain ptrdiff_t,
+ no Lisp calls). */
+ EmacsAccessibilityBuffer *pb = self.parentBuffer;
+ if (!pb)
+ return NO;
+ ptrdiff_t pt = pb.cachedPoint;
+ return pt >= self.charposStart && pt < self.charposEnd;
+}
+
+- (void) setAccessibilityFocused: (BOOL) focused
+{
+ if (!focused)
+ return;
+ ptrdiff_t target = self.charposStart;
+ Lisp_Object lwin = self.lispWindow;
+ dispatch_async (dispatch_get_main_queue (), ^{
+ /* lwin is a Lisp_Object captured by value. This is GC-safe
+ because Lisp_Objects are tagged integers/pointers that
+ remain valid across GC --- GC does not relocate objects in
+ Emacs. The WINDOW_LIVE_P check below guards against the
+ window being deleted between capture and execution. */
+ if (!WINDOWP (lwin) || NILP (Fwindow_live_p (lwin)))
+ return;
+ /* block_input must come before record_unwind_protect_void (unblock_input)
+ so the unwind handler is never invoked without a matching block_input,
+ even if Fselect_window signals (longjmp). */
+ specpdl_ref count = SPECPDL_INDEX ();
+ block_input ();
+ record_unwind_protect_void (unblock_input);
+ record_unwind_current_buffer ();
+ Fselect_window (lwin, Qnil);
+ struct window *w = XWINDOW (lwin);
+ struct buffer *b = XBUFFER (w->contents);
+ if (b != current_buffer)
+ set_buffer_internal_1 (b);
+ ptrdiff_t pos = target;
+ if (pos < BUF_BEGV (b)) pos = BUF_BEGV (b);
+ if (pos > BUF_ZV (b)) pos = BUF_ZV (b);
+ SET_PT_BOTH (pos, CHAR_TO_BYTE (pos));
+ unbind_to (count, Qnil);
+ });
+}
+
+@end
+
+/* EmacsAccessibilityBuffer --- InteractiveSpans category.
+ Methods are kept here (same .m file) so they access the ivars
+ declared in the @interface ivar block. */
+@implementation EmacsAccessibilityBuffer (InteractiveSpans)
+
+- (void) invalidateInteractiveSpans
+{
+ interactiveSpansDirty = YES;
+}
+
+- (NSArray *) accessibilityChildrenInNavigationOrder
+{
+ if (!interactiveSpansDirty && cachedInteractiveSpans != nil)
+ return cachedInteractiveSpans;
+
+ if (![NSThread isMainThread])
+ {
+ __block NSArray *result;
+ dispatch_sync (dispatch_get_main_queue (), ^{
+ result = [self accessibilityChildrenInNavigationOrder];
+ });
+ return result;
+ }
+
+ struct window *w = [self validWindow];
+ if (!w)
+ return cachedInteractiveSpans ? cachedInteractiveSpans : @[];
+
+ /* Validate buffer before scanning. The Lisp calls inside
+ ns_ax_scan_interactive_spans (Ftext_properties_at, Fplist_get,
+ Fnext_single_property_change) do not signal on valid buffers
+ with valid positions. Verify those preconditions here so we
+ never enter the scan with invalid state, which could longjmp
+ out of a dispatch_sync block and deadlock the AX thread. */
+ if (!BUFFERP (w->contents) || !XBUFFER (w->contents))
+ return cachedInteractiveSpans ? cachedInteractiveSpans : @[];
+
+ NSArray *spans = ns_ax_scan_interactive_spans (w, self);
+
+ if (!cachedInteractiveSpans)
+ cachedInteractiveSpans = [[NSMutableArray alloc] init];
+ [cachedInteractiveSpans setArray: spans];
+ interactiveSpansDirty = NO;
+
+ return cachedInteractiveSpans;
+}
+
+@end
+
#endif /* NS_IMPL_COCOA */
--
2.43.0

632
patches/0005-ns-integrate-accessibility-with-EmacsView-and-redisp.patch Normal file
View File

@@ -0,0 +1,632 @@
From 411c0c3f06ad4c2d5aae2b17b809e8899ea892ba Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 12:58:11 +0100
Subject: [PATCH 6/9] ns: integrate accessibility with EmacsView and redisplay
Wire the accessibility element tree into EmacsView and hook it into
the redisplay cycle.
* etc/NEWS: Document VoiceOver accessibility support.
* src/nsterm.m (ns_update_end): Call -[EmacsView postAccessibilityUpdates].
(EmacsApp ns_update_accessibility_state): New method; query
AXIsProcessTrustedWithOptions and UAZoomEnabled to set
ns_accessibility_enabled automatically.
(EmacsApp ns_accessibility_did_change:): New method; handle
com.apple.accessibility.api distributed notification.
(EmacsView dealloc): Release accessibilityElements.
(EmacsView windowDidBecomeKey:): Post accessibility focus notification.
(ns_ax_collect_windows): New function.
(EmacsView rebuildAccessibilityTree, invalidateAccessibilityTree)
(accessibilityChildren, accessibilityFocusedUIElement)
(postAccessibilityUpdates, accessibilityBoundsForRange:)
(accessibilityParameterizedAttributeNames)
(accessibilityAttributeValue:forParameter:): New methods.
---
etc/NEWS | 13 ++
src/nsterm.h | 7 +-
src/nsterm.m | 474 +++++++++++++++++++++++++++++++++++++++++++++++++--
3 files changed, 483 insertions(+), 11 deletions(-)
diff --git a/etc/NEWS b/etc/NEWS
index 4c149e41d6..7f917f93b2 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -4385,6 +4385,19 @@ allowing Emacs users access to speech recognition utilities.
Note: Accepting this permission allows the use of system APIs, which may
send user data to Apple's speech recognition servers.
+---
+** VoiceOver accessibility support on macOS.
+Emacs now exposes buffer content, cursor position, and interactive
+elements to the macOS accessibility subsystem (VoiceOver). This
+includes AXBoundsForRange for macOS Zoom cursor tracking, line and
+word navigation announcements, Tab-navigable interactive spans
+(buttons, links, completion candidates), and completion announcements
+for the *Completions* buffer. The implementation uses a virtual
+accessibility tree with per-window elements, hybrid SelectedTextChanged
+and AnnouncementRequested notifications, and thread-safe text caching.
+Set 'ns-accessibility-enabled' to nil to disable the accessibility
+interface and eliminate the associated overhead.
+
---
** Re-introduced dictation, lost in Emacs v30 (macOS).
We lost macOS dictation in v30 when migrating to NSTextInputClient.
diff --git a/src/nsterm.h b/src/nsterm.h
index f245675513..4bf79a9adb 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -590,7 +590,12 @@ typedef NS_ENUM(NSInteger, EmacsAXSpanType)
char *old_title;
BOOL maximizing_resize;
NSMutableArray *accessibilityElements;
- /* See GC safety comment on EmacsAccessibilityElement.lispWindow. */
+ /* Lisp_Object ivars not visible to GC. Both objects are always
+ reachable via the frame's live window tree, so GC cannot collect
+ them. After a window-tree rebuild (delete-window, split-window)
+ a stale EQ match would merely skip a focus notification --- the
+ worst case is one spurious VoiceOver focus event per rebuild.
+ No staticpro() needed: the window tree holds a strong reference. */
Lisp_Object lastSelectedWindow;
Lisp_Object lastRootWindow;
BOOL accessibilityTreeValid;
diff --git a/src/nsterm.m b/src/nsterm.m
index f5e5cea074..c3cd83b774 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -1393,7 +1393,8 @@ so the visual offset is (ov_line + 1) * line_h from
(zoomCursorUpdated is NO). */
#if defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
&& MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
- if (view && !view->zoomCursorUpdated && ns_zoom_enabled_p ()
+ if (view && !view->zoomCursorUpdated
+ && ns_zoom_enabled_p ()
&& !NSIsEmptyRect (view->lastCursorRect))
{
NSRect r = view->lastCursorRect;
@@ -1420,6 +1421,9 @@ so the visual offset is (ov_line + 1) * line_h from
if (view)
ns_zoom_track_completion (f, view);
#endif /* NS_IMPL_COCOA */
+
+ /* Post accessibility notifications after each redisplay cycle. */
+ [view postAccessibilityUpdates];
}
static void
@@ -6723,9 +6727,56 @@ - (void)applicationDidFinishLaunching: (NSNotification *)notification
}
#endif
+#ifdef NS_IMPL_COCOA
+ /* Auto-detect Zoom and VoiceOver at startup and whenever their state
+ changes. The "com.apple.accessibility.api" distributed notification
+ fires when any assistive technology connects or disconnects.
+ Both code paths set ns_accessibility_enabled so that one variable
+ gates all our accessibility overhead. */
+ [self ns_update_accessibility_state];
+ [[NSDistributedNotificationCenter defaultCenter]
+ addObserver: self
+ selector: @selector(ns_accessibility_did_change:)
+ name: @"com.apple.accessibility.api"
+ object: nil
+suspensionBehavior: NSNotificationSuspensionBehaviorDeliverImmediately];
+#endif
+
ns_send_appdefined (-2);
}
+#ifdef NS_IMPL_COCOA
+/* Set ns_accessibility_enabled based on current AT state.
+ Called at startup and from the "com.apple.accessibility.api"
+ distributed notification handler. Checks both UAZoomEnabled()
+ (Zoom) and AXIsProcessTrustedWithOptions() (VoiceOver and other
+ ATs that have connected to this process). */
+- (void) ns_update_accessibility_state
+{
+ NSTRACE ("[EmacsApp ns_update_accessibility_state]");
+ BOOL zoom_on = UAZoomEnabled ();
+ NSDictionary *opts = @{(__bridge id) kAXTrustedCheckOptionPrompt: @NO};
+ BOOL at_on = AXIsProcessTrustedWithOptions ((__bridge CFDictionaryRef) opts);
+ BOOL new_state = zoom_on || at_on;
+ if ((BOOL) ns_accessibility_enabled != new_state)
+ {
+ ns_accessibility_enabled = new_state;
+ /* Reset the UAZoomEnabled cache so ns_zoom_enabled_p() reflects
+ the new Zoom state on its next call. */
+ ns_zoom_cache_time = 0;
+ }
+}
+
+/* Handler for the "com.apple.accessibility.api" distributed notification,
+ posted by macOS when any AT (VoiceOver, Switch Control, etc.) starts
+ or stops. */
+- (void) ns_accessibility_did_change: (NSNotification *) notification
+{
+ NSTRACE ("[EmacsApp ns_accessibility_did_change:]");
+ [self ns_update_accessibility_state];
+}
+#endif
+
- (void)antialiasThresholdDidChange:(NSNotification *)notification
{
#ifdef NS_IMPL_COCOA
@@ -7656,7 +7707,6 @@ - (id)accessibilityTopLevelUIElement
-
static BOOL
ns_ax_find_completion_overlay_range (struct buffer *b, ptrdiff_t point,
ptrdiff_t *out_start,
@@ -8789,7 +8839,6 @@ - (NSRect)accessibilityFrame
@end
-
/* ===================================================================
EmacsAccessibilityBuffer (Notifications) — AX event dispatch
@@ -9283,6 +9332,54 @@ - (void)postAccessibilityNotificationsForFrame:(struct frame *)f
granularity = ns_ax_text_selection_granularity_line;
}
+ /* Treat all moves as Emacs-initiated until voiceoverSetPoint
+ tracking is introduced (subsequent patch). */
+ BOOL emacsMovedCursor = YES;
+
+ /* Programmatic jumps that cross a line boundary (]], [[, M-<,
+ xref, imenu, …) are discontiguous: the cursor teleported to an
+ arbitrary position, not one sequential step forward/backward.
+ Reporting AXTextSelectionDirectionDiscontiguous causes VoiceOver
+ to re-anchor its rotor browse cursor at the new
+ accessibilitySelectedTextRange rather than advancing linearly
+ from its previous internal position. */
+ if (!isCtrlNP && granularity == ns_ax_text_selection_granularity_line)
+ direction = ns_ax_text_selection_direction_discontiguous;
+
+ /* If Emacs moved the cursor (not VoiceOver), force discontiguous
+ so VoiceOver re-anchors its browse cursor to the current
+ accessibilitySelectedTextRange. This covers all Emacs-initiated
+ moves: editing commands, ELisp, isearch, etc.
+ Exception: C-n/C-p (isCtrlNP) already uses next/previous with
+ line granularity; those are already sequential and VoiceOver
+ handles them correctly. */
+ if (emacsMovedCursor && !isCtrlNP)
+ direction = ns_ax_text_selection_direction_discontiguous;
+
+ /* Re-anchor VoiceOver's browse cursor for discontiguous (teleport)
+ moves only. For sequential C-n/C-p (isCtrlNP), posting
+ FocusedUIElementChanged on the window races with the
+ AXSelectedTextChanged(granularity=line) notification and
+ causes VoiceOver to drop the line-read speech. Sequential
+ moves are already handled correctly by AXSelectedTextChanged
+ with direction=next/previous + granularity=line. */
+ if (emacsMovedCursor && !isCtrlNP && [self isAccessibilityFocused])
+ {
+ NSWindow *win = [self.emacsView window];
+ if (win)
+ ns_ax_post_notification (
+ win,
+ NSAccessibilityFocusedUIElementChangedNotification);
+
+ NSDictionary *layoutInfo = @{
+ NSAccessibilityUIElementsKey: @[self]
+ };
+ ns_ax_post_notification_with_info (
+ self.emacsView,
+ NSAccessibilityLayoutChangedNotification,
+ layoutInfo);
+ }
+
/* Post notifications for focused and non-focused elements. */
if ([self isAccessibilityFocused])
[self postFocusedCursorNotification:point
@@ -9395,7 +9492,6 @@ - (NSRect)accessibilityFrame
@end
-
/* ===================================================================
EmacsAccessibilityInteractiveSpan --- helpers and implementation
=================================================================== */
@@ -9733,6 +9829,7 @@ - (void)dealloc
[layer release];
#endif
+ [accessibilityElements release];
[[self menu] release];
[super dealloc];
}
@@ -11081,6 +11178,32 @@ - (void)windowDidBecomeKey /* for direct calls */
XSETFRAME (event.frame_or_window, emacsframe);
kbd_buffer_store_event (&event);
ns_send_appdefined (-1); // Kick main loop
+
+#ifdef NS_IMPL_COCOA
+ /* Notify VoiceOver that the focused accessibility element changed.
+ Post on the focused virtual element so VoiceOver starts tracking it.
+ This is critical for initial focus and app-switch scenarios. */
+ if (ns_accessibility_enabled)
+ {
+ id focused = [self accessibilityFocusedUIElement];
+ if (focused
+ && [focused isKindOfClass:[EmacsAccessibilityBuffer class]])
+ {
+ ns_ax_post_notification (focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+ NSDictionary *info = @{
+ @"AXTextStateChangeType":
+ @(ns_ax_text_state_change_selection_move),
+ @"AXTextChangeElement": focused
+ };
+ ns_ax_post_notification_with_info (focused,
+ NSAccessibilitySelectedTextChangedNotification, info);
+ }
+ else if (focused)
+ ns_ax_post_notification (focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+ }
+#endif
}
@@ -12318,6 +12441,332 @@ - (int) fullscreenState
return fs_state;
}
+#ifdef NS_IMPL_COCOA
+
+/* ---- Accessibility: walk the Emacs window tree ---- */
+
+static void
+ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
+ NSMutableArray *elements,
+ NSDictionary *existing)
+{
+ if (NILP (window))
+ return;
+
+ struct window *w = XWINDOW (window);
+
+ if (WINDOW_LEAF_P (w))
+ {
+ /* Buffer element — reuse existing if available. */
+ EmacsAccessibilityBuffer *elem
+ = [existing objectForKey:[NSValue valueWithPointer:w]];
+ if (!elem)
+ {
+ elem = [[EmacsAccessibilityBuffer alloc] init];
+ elem.emacsView = view;
+
+ /* Initialize cached state to -1 to force first notification. */
+ elem.cachedModiff = -1;
+ elem.cachedPoint = -1;
+ elem.cachedMarkActive = NO;
+ }
+ else
+ {
+ [elem retain];
+ }
+ elem.lispWindow = window;
+ [elements addObject:elem];
+ [elem release];
+
+ /* Mode line element (skip for minibuffer). */
+ if (!MINI_WINDOW_P (w))
+ {
+ EmacsAccessibilityModeLine *ml
+ = [[EmacsAccessibilityModeLine alloc] init];
+ ml.emacsView = view;
+ ml.lispWindow = window;
+ [elements addObject:ml];
+ [ml release];
+ }
+ }
+ else
+ {
+ /* Internal (combination) window — recurse into children. */
+ Lisp_Object child = w->contents;
+ while (!NILP (child))
+ {
+ ns_ax_collect_windows (child, view, elements, existing);
+ child = XWINDOW (child)->next;
+ }
+ }
+}
+
+- (void)rebuildAccessibilityTree
+{
+ NSTRACE ("[EmacsView rebuildAccessibilityTree]");
+ if (!emacsframe)
+ return;
+
+ /* Build map of existing elements by window pointer for reuse. */
+ NSMutableDictionary *existing = [NSMutableDictionary dictionary];
+ if (accessibilityElements)
+ {
+ for (EmacsAccessibilityElement *elem in accessibilityElements)
+ {
+ if ([elem isKindOfClass:[EmacsAccessibilityBuffer class]]
+ && !NILP (elem.lispWindow))
+ [existing setObject:elem
+ forKey:[NSValue valueWithPointer:
+ XWINDOW (elem.lispWindow)]];
+ }
+ }
+
+ NSMutableArray *newElements = [NSMutableArray arrayWithCapacity:8];
+
+ /* Collect from main window tree. */
+ Lisp_Object root = FRAME_ROOT_WINDOW (emacsframe);
+ ns_ax_collect_windows (root, self, newElements, existing);
+
+ /* Include minibuffer. */
+ Lisp_Object mini = emacsframe->minibuffer_window;
+ if (!NILP (mini))
+ ns_ax_collect_windows (mini, self, newElements, existing);
+
+ [accessibilityElements release];
+ accessibilityElements = [newElements retain];
+ accessibilityTreeValid = YES;
+}
+
+- (void)invalidateAccessibilityTree
+{
+ accessibilityTreeValid = NO;
+}
+
+- (NSAccessibilityRole)accessibilityRole
+{
+ return NSAccessibilityGroupRole;
+}
+
+- (NSString *)accessibilityLabel
+{
+ return @"Emacs";
+}
+
+- (BOOL)isAccessibilityElement
+{
+ return YES;
+}
+
+- (NSArray *)accessibilityChildren
+{
+ if (!accessibilityElements || !accessibilityTreeValid)
+ [self rebuildAccessibilityTree];
+ return accessibilityElements;
+}
+
+- (id)accessibilityFocusedUIElement
+{
+ if (!emacsframe)
+ return self;
+
+ if (!accessibilityElements || !accessibilityTreeValid)
+ [self rebuildAccessibilityTree];
+
+ for (EmacsAccessibilityElement *elem in accessibilityElements)
+ {
+ if ([elem isKindOfClass:[EmacsAccessibilityBuffer class]]
+ && EQ (elem.lispWindow, emacsframe->selected_window))
+ return elem;
+ }
+ return self;
+}
+
+/* Called from ns_update_end to post AX notifications.
+
+ Important: post notifications BEFORE rebuilding the tree.
+ The existing elements carry cached state (modiff, point) from the
+ previous redisplay cycle. Rebuilding first would create fresh
+ elements with current values, making change detection impossible. */
+- (void)postAccessibilityUpdates
+{
+ NSTRACE ("[EmacsView postAccessibilityUpdates]");
+ eassert ([NSThread isMainThread]);
+
+ if (!emacsframe || !ns_accessibility_enabled)
+ return;
+
+ /* Re-entrance guard: VoiceOver callbacks during notification posting
+ can trigger redisplay, which calls ns_update_end, which calls us
+ again. Prevent infinite recursion. */
+ if (accessibilityUpdating)
+ return;
+ accessibilityUpdating = YES;
+
+ /* Detect window tree change (split, delete, new buffer). Compare
+ FRAME_ROOT_WINDOW — if it changed, the tree structure changed. */
+ Lisp_Object curRoot = FRAME_ROOT_WINDOW (emacsframe);
+ if (!EQ (curRoot, lastRootWindow))
+ {
+ lastRootWindow = curRoot;
+ accessibilityTreeValid = NO;
+ }
+
+ /* If tree is stale, rebuild FIRST so we don't iterate freed
+ window pointers. Skip notifications for this cycle — the
+ freshly-built elements have no previous state to diff against. */
+ if (!accessibilityTreeValid)
+ {
+ [self rebuildAccessibilityTree];
+ /* Invalidate span cache — window layout changed. */
+ for (EmacsAccessibilityElement *elem in accessibilityElements)
+ if ([elem isKindOfClass: [EmacsAccessibilityBuffer class]])
+ [(EmacsAccessibilityBuffer *) elem invalidateInteractiveSpans];
+ ns_ax_post_notification (self,
+ NSAccessibilityLayoutChangedNotification);
+
+ /* Post focus change so VoiceOver picks up the new tree. */
+ id focused = [self accessibilityFocusedUIElement];
+ if (focused && focused != self)
+ ns_ax_post_notification (focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+
+ lastSelectedWindow = emacsframe->selected_window;
+ accessibilityUpdating = NO;
+ return;
+ }
+
+ /* Post per-buffer notifications using EXISTING elements that have
+ cached state from the previous cycle. Validate each window
+ pointer before use. */
+ for (EmacsAccessibilityElement *elem in accessibilityElements)
+ {
+ if ([elem isKindOfClass:[EmacsAccessibilityBuffer class]])
+ {
+ struct window *w = [elem validWindow];
+ if (w && WINDOW_LEAF_P (w)
+ && BUFFERP (w->contents) && XBUFFER (w->contents))
+ [(EmacsAccessibilityBuffer *) elem
+ postAccessibilityNotificationsForFrame:emacsframe];
+ }
+ }
+
+ /* Check for window switch (C-x o). */
+ Lisp_Object curSel = emacsframe->selected_window;
+ BOOL windowSwitched = !EQ (curSel, lastSelectedWindow);
+ if (windowSwitched)
+ {
+ lastSelectedWindow = curSel;
+ id focused = [self accessibilityFocusedUIElement];
+ if (focused && focused != self
+ && [focused isKindOfClass:[EmacsAccessibilityBuffer class]])
+ {
+ ns_ax_post_notification (focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+ NSDictionary *info = @{
+ @"AXTextStateChangeType":
+ @(ns_ax_text_state_change_selection_move),
+ @"AXTextChangeElement": focused
+ };
+ ns_ax_post_notification_with_info (focused,
+ NSAccessibilitySelectedTextChangedNotification, info);
+ }
+ else if (focused && focused != self)
+ ns_ax_post_notification (focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+ }
+
+ accessibilityUpdating = NO;
+}
+
+/* ---- Cursor position for Zoom (via accessibilityBoundsForRange:) ----
+
+ accessibilityFrame returns the VIEW's frame (standard behavior).
+ The cursor location is exposed through accessibilityBoundsForRange:
+ which AT tools query using the selectedTextRange. */
+
+- (NSRect)accessibilityBoundsForRange:(NSRange)range
+{
+ /* Delegate to the focused buffer element for accurate per-range
+ geometry when possible. Fall back to the cached cursor rect
+ (set by ns_draw_phys_cursor) for Zoom and simple AT queries. */
+ id focused = [self accessibilityFocusedUIElement];
+ if ([focused isKindOfClass:[EmacsAccessibilityBuffer class]])
+ {
+ NSRect bufRect = [(EmacsAccessibilityBuffer *) focused
+ accessibilityFrameForRange:range];
+ if (!NSIsEmptyRect (bufRect))
+ return bufRect;
+ }
+
+ NSRect viewRect = lastCursorRect;
+
+ if (viewRect.size.width < 1)
+ viewRect.size.width = 1;
+ if (viewRect.size.height < 1)
+ viewRect.size.height = 8;
+
+ NSWindow *win = [self window];
+ if (win == nil)
+ return NSZeroRect;
+
+ NSRect windowRect = [self convertRect:viewRect toView:nil];
+ return [win convertRectToScreen:windowRect];
+}
+
+/* Modern NSAccessibility protocol entry point. Delegates to
+ accessibilityBoundsForRange: which holds the real implementation
+ shared with the legacy parameterized-attribute API. */
+- (NSRect)accessibilityFrameForRange:(NSRange)range
+{
+ return [self accessibilityBoundsForRange:range];
+}
+
+/* Delegate to the focused virtual buffer element so both the modern
+ and legacy APIs return the correct string data. */
+- (NSString *)accessibilityStringForRange:(NSRange)range
+{
+ id focused = [self accessibilityFocusedUIElement];
+ if ([focused isKindOfClass:[EmacsAccessibilityBuffer class]])
+ return [(EmacsAccessibilityBuffer *) focused
+ accessibilityStringForRange:range];
+ return @"";
+}
+
+/* ---- Legacy parameterized attribute APIs (Zoom uses these) ---- */
+
+- (NSArray *)accessibilityParameterizedAttributeNames
+{
+ NSArray *superAttrs = [super accessibilityParameterizedAttributeNames];
+ if (superAttrs == nil)
+ superAttrs = @[];
+ return [superAttrs arrayByAddingObjectsFromArray:
+ @[NSAccessibilityBoundsForRangeParameterizedAttribute,
+ NSAccessibilityStringForRangeParameterizedAttribute]];
+}
+
+- (id)accessibilityAttributeValue:(NSString *)attribute
+ forParameter:(id)parameter
+{
+ if ([attribute isEqualToString:
+ NSAccessibilityBoundsForRangeParameterizedAttribute])
+ {
+ NSRange range = [(NSValue *) parameter rangeValue];
+ return [NSValue valueWithRect:
+ [self accessibilityBoundsForRange:range]];
+ }
+
+ if ([attribute isEqualToString:
+ NSAccessibilityStringForRangeParameterizedAttribute])
+ {
+ NSRange range = [(NSValue *) parameter rangeValue];
+ return [self accessibilityStringForRange:range];
+ }
+
+ return [super accessibilityAttributeValue:attribute forParameter:parameter];
+}
+
+#endif /* NS_IMPL_COCOA */
+
@end /* EmacsView */
@@ -14314,12 +14763,17 @@ Nil means use fullscreen the old (< 10.7) way. The old way works better with
ns_use_srgb_colorspace = YES;
DEFVAR_BOOL ("ns-accessibility-enabled", ns_accessibility_enabled,
- doc: /* Non-nil means expose buffer content to the macOS accessibility
-subsystem (VoiceOver, Zoom, and other assistive technology).
-When nil, the accessibility virtual element tree is not built and no
-notifications are posted, eliminating the associated overhead.
-Requires the Cocoa (NS) build on macOS; ignored on GNUstep.
-Default is nil. Set to t to enable VoiceOver support. */);
+ doc: /* Non-nil enables Zoom cursor tracking and VoiceOver support.
+Emacs sets this automatically at startup when macOS Zoom is active or
+any assistive technology (VoiceOver, Switch Control, etc.) is connected,
+and updates it whenever that state changes. You can override manually:
+
+ (setq ns-accessibility-enabled t) ; always on
+ (setq ns-accessibility-enabled nil) ; always off
+
+When nil, no AX tree is built and no notifications are posted,
+giving zero per-redisplay overhead.
+Requires the Cocoa (NS) build on macOS; ignored on GNUstep. */);
ns_accessibility_enabled = NO;
DEFVAR_BOOL ("ns-use-mwheel-acceleration",
--
2.43.0

136
patches/0006-doc-add-VoiceOver-accessibility-section-to-macOS-app.patch Normal file
View File

@@ -0,0 +1,136 @@
From 274c545be1a3af3c7e6f416ac3a22e3b98626b0b Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Sat, 28 Feb 2026 12:58:11 +0100
Subject: [PATCH 7/9] doc: add VoiceOver accessibility section to macOS
appendix
* doc/emacs/macos.texi (VoiceOver Accessibility): New node between
'Mac / GNUstep Events' and 'GNUstep Support'. Document screen reader
usage, keyboard navigation, completion announcements, ns-accessibility-
enabled, and known limitations. Use @xref for cross-reference at
sentence start. Correct description of ns-accessibility-enabled
default: initial value is nil, set automatically at startup.
---
doc/emacs/macos.texi | 77 ++++++++++++++++++++++++++++++++++++++++++++
src/nsterm.m | 10 ++++--
2 files changed, 84 insertions(+), 3 deletions(-)
diff --git a/doc/emacs/macos.texi b/doc/emacs/macos.texi
index 6bd334f48e..72ac3a9aa9 100644
--- a/doc/emacs/macos.texi
+++ b/doc/emacs/macos.texi
@@ -36,6 +36,7 @@ Support}), but we hope to improve it in the future.
* Mac / GNUstep Basics:: Basic Emacs usage under GNUstep or macOS.
* Mac / GNUstep Customization:: Customizations under GNUstep or macOS.
* Mac / GNUstep Events:: How window system events are handled.
+* VoiceOver Accessibility:: Screen reader support on macOS.
* GNUstep Support:: Details on status of GNUstep support.
@end menu
@@ -272,6 +273,82 @@ and return the result as a string. You can also use the Lisp function
services and receive the results back. Note that you may need to
restart Emacs to access newly-available services.
+@node VoiceOver Accessibility
+@section VoiceOver Accessibility (macOS)
+@cindex VoiceOver
+@cindex accessibility (macOS)
+@cindex screen reader (macOS)
+@cindex Zoom, cursor tracking (macOS)
+
+ When built with the Cocoa interface on macOS, Emacs exposes buffer
+content, cursor position, mode lines, and interactive elements to the
+macOS accessibility subsystem. This enables use with VoiceOver,
+Apple's built-in screen reader, and with other assistive technology
+such as macOS Zoom.
+
+ Toggle VoiceOver with @kbd{Cmd-F5} (or via System Settings,
+Accessibility, VoiceOver). When Emacs is focused, VoiceOver announces
+the buffer name and current line. Standard Emacs navigation produces
+speech feedback:
+
+@itemize @bullet
+@item
+Arrow keys read individual characters (left/right) or full lines
+(up/down).
+@item
+@kbd{M-f} and @kbd{M-b} announce words.
+@item
+@kbd{C-n} and @kbd{C-p} read the destination line.
+@item
+Shift-modified movement announces selected or deselected text.
+@item
+@key{TAB} and @kbd{S-@key{TAB}} navigate interactive elements
+(buttons, links, completion candidates) within a buffer.
+@end itemize
+
+ The @file{*Completions*} buffer announces each completion candidate
+as you navigate, even while keyboard focus remains in the minibuffer.
+
+ macOS Zoom (System Settings, Accessibility, Zoom) tracks the Emacs
+cursor automatically when set to follow keyboard focus. The cursor
+position is communicated via @code{UAZoomChangeFocus} and the
+@code{AXBoundsForRange} accessibility attribute.
+
+@vindex ns-accessibility-enabled
+ To disable the accessibility interface entirely (for instance, to
+eliminate overhead on systems where assistive technology is not in
+use), set @code{ns-accessibility-enabled} to @code{nil}. Emacs
+detects the presence of assistive technology at startup and sets this
+variable automatically; the initial value is @code{nil}.
+
+@subheading Known Limitations
+
+@itemize @bullet
+@item
+Very large buffers (tens of megabytes) may cause slow initial
+accessibility text extraction. Once cached, subsequent queries
+are fast.
+@item
+Mode-line text extraction handles only character glyphs. Mode lines
+using icon fonts (e.g., icon-based mode-lines)
+produce incomplete accessibility text.
+@item
+The accessibility virtual element tree is rebuilt automatically on
+window configuration changes (splits, deletions, new buffers).
+@item
+Right-to-left (bidi) text is exposed correctly as buffer content,
+but @code{accessibilityRangeForPosition} hit-testing assumes
+left-to-right glyph layout.
+@item
+Block-style cursors are handled correctly: character navigation
+announces the character at the cursor position, not the character
+before it.
+@end itemize
+
+ This support is available only on the Cocoa build. GNUstep has a
+different accessibility model and is not yet supported.
+
+
@node GNUstep Support
@section GNUstep Support
diff --git a/src/nsterm.m b/src/nsterm.m
index c3cd83b774..e4e43dd7a3 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -14764,9 +14764,13 @@ Nil means use fullscreen the old (< 10.7) way. The old way works better with
DEFVAR_BOOL ("ns-accessibility-enabled", ns_accessibility_enabled,
doc: /* Non-nil enables Zoom cursor tracking and VoiceOver support.
-Emacs sets this automatically at startup when macOS Zoom is active or
-any assistive technology (VoiceOver, Switch Control, etc.) is connected,
-and updates it whenever that state changes. You can override manually:
+Emacs detects at startup whether macOS Zoom is active or an assistive
+technology (VoiceOver, Switch Control, etc.) is connected, and sets
+this variable accordingly. It updates automatically when accessibility
+state changes. The initial value is nil; it becomes non-nil only when
+an AT is detected.
+
+You can override the auto-detection:
(setq ns-accessibility-enabled t) ; always on
(setq ns-accessibility-enabled nil) ; always off
--
2.43.0

634
patches/0007-ns-announce-overlay-completion-candidates-for-VoiceO.patch Normal file
View File

@@ -0,0 +1,634 @@
From b87fb2b1824761fe3d91a27afe966eada39c1c45 Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Mon, 2 Mar 2026 18:39:46 +0100
Subject: [PATCH 8/9] ns: announce overlay completion candidates for VoiceOver
Completion frameworks such as Vertico, Ivy, and Icomplete render
candidates via overlay before-string/after-string properties. Without
this change VoiceOver cannot read overlay-based completion UIs.
* src/nsterm.m (ns_ax_selected_overlay_text): New function; scan
overlay strings in the window for a line with a selected face; return
its text.
(accessibilityStringForRange:, accessibilityAttributedStringForRange:)
(accessibilityRangeForLine:): New NSAccessibility protocol methods.
Moved here from planned patch 0008 to keep the AX protocol interface
complete before notification logic uses it.
(ensureTextCache): Switch cache-validity counter from BUF_CHARS_MODIFF
to BUF_MODIFF. Fold/unfold commands (org-mode, outline-mode,
hideshow-mode) change the 'invisible text property via
`put-text-property', which bumps BUF_MODIFF but not BUF_CHARS_MODIFF.
Using BUF_CHARS_MODIFF would serve stale AX text across fold/unfold.
The rebuild is O(visible-buffer-text) but ensureTextCache is called
exclusively from AX getters at human interaction speed, never from the
redisplay notification path; font-lock passes cause zero rebuild cost.
(postAccessibilityNotificationsForFrame:): Handle BUF_OVERLAY_MODIFF
changes independently of text changes. Use BUF_CHARS_MODIFF to gate
ValueChanged. Do not call ensureTextCache from the cursor-moved branch:
the granularity detection uses cachedText directly (falling back to
granularity_unknown when the cache is absent), so font-lock passes
cannot trigger O(buffer-size) rebuilds via the notification path.
---
src/nsterm.h | 1 +
src/nsterm.m | 384 ++++++++++++++++++++++++++++++++++++++++-----------
2 files changed, 306 insertions(+), 79 deletions(-)
diff --git a/src/nsterm.h b/src/nsterm.h
index 4bf79a9adb..72ca210bb0 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -510,6 +510,7 @@ typedef struct ns_ax_visible_run
@property (nonatomic, assign) ptrdiff_t cachedOverlayModiff;
@property (nonatomic, assign) ptrdiff_t cachedTextStart;
@property (nonatomic, assign) ptrdiff_t cachedModiff;
+@property (nonatomic, assign) ptrdiff_t cachedCharsModiff;
@property (nonatomic, assign) ptrdiff_t cachedPoint;
@property (nonatomic, assign) BOOL cachedMarkActive;
@property (nonatomic, copy) NSString *cachedCompletionAnnouncement;
diff --git a/src/nsterm.m b/src/nsterm.m
index e4e43dd7a3..c9fe93a57b 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -7263,11 +7263,154 @@ Accessibility virtual elements (macOS / Cocoa only)
/* ---- Helper: extract buffer text for accessibility ---- */
+/* Return true if FACE is or contains a face symbol whose name
+ includes "current" or "selected", indicating a highlighted
+ completion candidate. Works for vertico-current,
+ icomplete-selected-match, ivy-current-match, etc. */
+static bool
+ns_ax_face_is_selected (Lisp_Object face)
+{
+ if (SYMBOLP (face) && !NILP (face))
+ {
+ const char *name = SSDATA (SYMBOL_NAME (face));
+ /* Substring match is intentionally broad --- it catches
+ vertico-current, icomplete-selected-match, ivy-current-match,
+ company-tooltip-selection, and similar. False positives are
+ harmless since this runs only on overlay strings during
+ completion. */
+ if (strstr (name, "current") || strstr (name, "selected")
+ || strstr (name, "selection"))
+ return true;
+ }
+ if (CONSP (face))
+ {
+ for (Lisp_Object tail = face; CONSP (tail); tail = XCDR (tail))
+ if (ns_ax_face_is_selected (XCAR (tail)))
+ return true;
+ }
+ return false;
+}
+
+/* Extract the currently selected candidate text from overlay display
+ strings. Completion frameworks render candidates as overlay
+ before-string/after-string and highlight the current candidate
+ with a face whose name contains "current" or "selected"
+ (e.g. vertico-current, icomplete-selected-match, ivy-current-match).
+
+ Scan all overlays in the buffer region [BEG, END), find the line
+ whose face matches the selection heuristic, and return it (already
+ trimmed of surrounding whitespace).
+
+ Also set *OUT_LINE_INDEX to the 0-based visual line index of the
+ selected candidate (for Zoom positioning), counting only non-trivial
+ lines. Set to -1 if not found.
+
+ Returns nil if no selected candidate is found. */
+static NSString *
+ns_ax_selected_overlay_text (struct buffer *b,
+ ptrdiff_t beg, ptrdiff_t end,
+ int *out_line_index)
+{
+ *out_line_index = -1;
+
+ Lisp_Object ov_list = Foverlays_in (make_fixnum (beg),
+ make_fixnum (end));
+
+ for (Lisp_Object tail = ov_list; CONSP (tail); tail = XCDR (tail))
+ {
+ Lisp_Object ov = XCAR (tail);
+ Lisp_Object strings[2];
+ strings[0] = Foverlay_get (ov, Qbefore_string);
+ strings[1] = Foverlay_get (ov, Qafter_string);
+
+ for (int s = 0; s < 2; s++)
+ {
+ if (!STRINGP (strings[s]))
+ continue;
+
+ Lisp_Object str = strings[s];
+ ptrdiff_t slen = SCHARS (str);
+ if (slen == 0)
+ continue;
+
+ /* Scan for newline positions using SDATA for efficiency.
+ The data pointer is used only in this loop, before any
+ Lisp calls (Fget_text_property etc.) that could trigger
+ GC and relocate string data. */
+ const unsigned char *data = SDATA (str);
+ ptrdiff_t byte_len = SBYTES (str);
+ /* 512 lines is sufficient for any completion UI;
+ vertico-count defaults to 10. */
+ ptrdiff_t line_starts[512];
+ ptrdiff_t line_ends[512];
+ int nlines = 0;
+ ptrdiff_t char_pos = 0, byte_pos = 0, lstart = 0;
+
+ while (byte_pos < byte_len && nlines < 512)
+ {
+ if (data[byte_pos] == '\n')
+ {
+ if (char_pos > lstart)
+ {
+ line_starts[nlines] = lstart;
+ line_ends[nlines] = char_pos;
+ nlines++;
+ }
+ lstart = char_pos + 1;
+ }
+ if (STRING_MULTIBYTE (str))
+ byte_pos += BYTES_BY_CHAR_HEAD (data[byte_pos]);
+ else
+ byte_pos++;
+ char_pos++;
+ }
+ if (char_pos > lstart && nlines < 512)
+ {
+ line_starts[nlines] = lstart;
+ line_ends[nlines] = char_pos;
+ nlines++;
+ }
+
+ /* Find the line whose face indicates selection. Track
+ visual line index for Zoom (skip whitespace-only lines
+ like Vertico's leading cursor-space). */
+ int candidate_idx = 0;
+ for (int li = 0; li < nlines; li++)
+ {
+ Lisp_Object face
+ = Fget_text_property (make_fixnum (line_starts[li]),
+ Qface, str);
+ if (ns_ax_face_is_selected (face))
+ {
+ Lisp_Object line
+ = Fsubstring_no_properties (
+ str,
+ make_fixnum (line_starts[li]),
+ make_fixnum (line_ends[li]));
+ NSString *text = [NSString stringWithLispString:line];
+ text = [text stringByTrimmingCharactersInSet:
+ [NSCharacterSet
+ whitespaceAndNewlineCharacterSet]];
+ if ([text length] > 0)
+ {
+ *out_line_index = candidate_idx;
+ return text;
+ }
+ }
+
+ /* Count non-trivial lines as candidates for Zoom. */
+ if (line_ends[li] - line_starts[li] > 1)
+ candidate_idx++;
+ }
+ }
+ }
+
+ return nil;
+}
/* Build accessibility text for window W, skipping invisible text.
Populates *OUT_START with the buffer start charpos.
Populates *OUT_RUNS with an array of visible runs and *OUT_NRUNS
with the count. Caller must free *OUT_RUNS with xfree(). */
-
static NSString *
ns_ax_buffer_text (struct window *w, ptrdiff_t *out_start,
ns_ax_visible_run **out_runs, NSUInteger *out_nruns)
@@ -7343,7 +7486,7 @@ Accessibility virtual elements (macOS / Cocoa only)
/* Extract this visible run's text. Use
Fbuffer_substring_no_properties which correctly handles the
- buffer gap — raw BUF_BYTE_ADDRESS reads across the gap would
+ buffer gap --- raw BUF_BYTE_ADDRESS reads across the gap would
include garbage bytes when the run spans the gap position. */
Lisp_Object lstr = Fbuffer_substring_no_properties (
make_fixnum (pos), make_fixnum (run_end));
@@ -7424,7 +7567,7 @@ Mode lines using icon fonts (e.g. nerd-font icons)
return NSZeroRect;
/* charpos_start and charpos_len are already in buffer charpos
- space — the caller maps AX string indices through
+ space --- the caller maps AX string indices through
charposForAccessibilityIndex which handles invisible text. */
ptrdiff_t cp_start = charpos_start;
ptrdiff_t cp_end = cp_start + charpos_len;
@@ -7606,31 +7749,7 @@ already on the main queue (e.g., inside postAccessibilityUpdates
freeing the main queue for VoiceOver's dispatch_sync calls. */
/* Return true if FACE (a symbol or list of symbols) looks like a
- "selected item" face. Substring match is intentionally broad ---
- it catches vertico-current, icomplete-selected-match,
- ivy-current-match, company-tooltip-selection, and similar.
- False positives are harmless: this runs only on overlay/child-frame
- strings during completion, never in a hot redisplay path. */
-static bool
-ns_ax_face_is_selected (Lisp_Object face)
-{
- if (SYMBOLP (face) && !NILP (face))
- {
- const char *name = SSDATA (SYMBOL_NAME (face));
- if (strstr (name, "current") || strstr (name, "selected")
- || strstr (name, "selection"))
- return true;
- }
- if (CONSP (face))
- {
- for (Lisp_Object tail = face; CONSP (tail); tail = XCDR (tail))
- if (ns_ax_face_is_selected (XCAR (tail)))
- return true;
- }
- return false;
-}
-
-static inline void
+ static inline void
ns_ax_post_notification (id element,
NSAccessibilityNotificationName name)
{
@@ -7924,6 +8043,7 @@ @implementation EmacsAccessibilityBuffer
@synthesize cachedOverlayModiff;
@synthesize cachedTextStart;
@synthesize cachedModiff;
+@synthesize cachedCharsModiff;
@synthesize cachedPoint;
@synthesize cachedMarkActive;
@synthesize cachedCompletionAnnouncement;
@@ -8021,7 +8141,7 @@ - (void)ensureTextCache
NSTRACE ("EmacsAccessibilityBuffer ensureTextCache");
/* This method is only called from the main thread (AX getters
dispatch_sync to main first). Reads of cachedText/cachedTextModiff
- below are therefore safe without @synchronized — only the
+ below are therefore safe without @synchronized --- only the
write section at the end needs synchronization to protect
against concurrent reads from AX server thread. */
eassert ([NSThread isMainThread]);
@@ -8033,25 +8153,38 @@ - (void)ensureTextCache
if (!b)
return;
- /* Use BUF_CHARS_MODIFF, not BUF_MODIFF, for cache validity.
- BUF_MODIFF is bumped by every text-property change, including
- font-lock face applications on every redisplay. AX text contains
- only characters, not face data, so property-only changes do not
- affect the cached value. Rebuilding the full buffer text on
- each font-lock pass is O(buffer-size) per redisplay --- this
- causes progressive slowdown when scrolling through large files.
- BUF_CHARS_MODIFF is bumped only on actual character insertions
- and deletions, matching the semantic of "did the text change".
- This is the pattern used by WebKit and NSTextView.
- Do NOT track BUF_OVERLAY_MODIFF here --- overlay text is not
- included in the cached AX text (it is handled separately via
- explicit announcements in postAccessibilityNotificationsForFrame).
- Including overlay_modiff would silently update cachedOverlayModiff
- and prevent the notification dispatch from detecting changes. */
- ptrdiff_t chars_modiff = BUF_CHARS_MODIFF (b);
+ /* Use BUF_MODIFF, not BUF_CHARS_MODIFF, for cache validity.
+
+ Fold/unfold commands (org-mode, outline-mode, hideshow-mode) change
+ text visibility by modifying the 'invisible text property via
+ `put-text-property' or `add-text-properties'. These bump BUF_MODIFF
+ but NOT BUF_CHARS_MODIFF, because no characters are inserted or
+ deleted. Using only BUF_CHARS_MODIFF would serve stale AX text
+ across fold/unfold: VoiceOver would continue reading hidden content
+ as if it were visible, or miss newly revealed content entirely.
+
+ BUF_MODIFF is bumped by all buffer modifications including
+ text-property changes (e.g. font-lock face assignments). The
+ per-rebuild cost is O(visible-buffer-text), but `ensureTextCache'
+ is called exclusively from AX getters (accessibilityValue,
+ accessibilitySelectedTextRange, etc.) which run at human interaction
+ speed --- not from the redisplay notification path. Font-lock
+ passes do not call this method, so the rebuild cost per font-lock
+ cycle is zero. The redisplay notification path (postAccessibility-
+ NotificationsForFrame:) uses cachedText directly without calling
+ ensureTextCache; granularity detection falls back gracefully when
+ the cache is absent.
+
+ Do NOT use BUF_OVERLAY_MODIFF alone: org-mode >= 29 (org-fold-core)
+ uses text properties, not overlays, for folding, so
+ BUF_OVERLAY_MODIFF would miss those changes. Additionally, modes
+ like hl-line-mode bump BUF_OVERLAY_MODIFF on every
+ post-command-hook, yielding the same per-keystroke rebuild cost as
+ BUF_MODIFF, with none of its correctness guarantee. */
+ ptrdiff_t modiff = BUF_MODIFF (b);
ptrdiff_t pt = BUF_PT (b);
NSUInteger textLen = cachedText ? [cachedText length] : 0;
- if (cachedText && cachedTextModiff == chars_modiff
+ if (cachedText && cachedTextModiff == modiff
&& cachedTextStart == BUF_BEGV (b)
&& pt >= cachedTextStart
&& (textLen == 0
@@ -8067,7 +8200,7 @@ included in the cached AX text (it is handled separately via
{
[cachedText release];
cachedText = [text retain];
- cachedTextModiff = chars_modiff;
+ cachedTextModiff = modiff;
cachedTextStart = start;
if (visibleRuns)
@@ -8079,9 +8212,9 @@ included in the cached AX text (it is handled separately via
Walk the cached text once, recording the start offset of each
line. Uses NSString lineRangeForRange: --- O(N) in the total
text --- but this loop runs only on cache rebuild, which is
- gated on BUF_CHARS_MODIFF: actual character insertions or
- deletions. Font-lock (text property changes) does not trigger
- a rebuild, so the hot path (cursor movement, redisplay) never
+ gated on BUF_MODIFF changes. Rebuilds happen when any buffer
+ modification occurs (including fold/unfold), ensuring the line
+ index always matches the currently visible text.
enters this code. */
if (lineStartOffsets)
xfree (lineStartOffsets);
@@ -8136,7 +8269,7 @@ - (NSUInteger)accessibilityIndexForCharpos:(ptrdiff_t)charpos
/* Binary search: runs are sorted by charpos (ascending). Find the
run whose [charpos, charpos+length) range contains the target,
or the nearest run after an invisible gap. O(log n) instead of
- O(n) — matters for org-mode with many folded sections. */
+ O(n) --- matters for org-mode with many folded sections. */
NSUInteger lo = 0, hi = visibleRunCount;
while (lo < hi)
{
@@ -8185,10 +8318,10 @@ by run length (visible window), not total buffer size. */
/* Convert accessibility string index to buffer charpos.
Safe to call from any thread: uses only cachedText (NSString) and
- visibleRuns — no Lisp calls. */
+ visibleRuns --- no Lisp calls. */
- (ptrdiff_t)charposForAccessibilityIndex:(NSUInteger)ax_idx
{
- /* May be called from AX server thread — synchronize. */
+ /* May be called from AX server thread --- synchronize. */
@synchronized (self)
{
if (visibleRunCount == 0)
@@ -8230,7 +8363,7 @@ the slow path (composed character sequence walk), which is
return cp;
}
}
- /* Past end — return last charpos. */
+ /* Past end --- return last charpos. */
if (lo > 0)
{
ns_ax_visible_run *last = &visibleRuns[visibleRunCount - 1];
@@ -8252,7 +8385,7 @@ the slow path (composed character sequence walk), which is
deadlocking the AX server thread. This is prevented by:
1. validWindow checks WINDOW_LIVE_P and BUFFERP before every
- Lisp access — the window and buffer are verified live.
+ Lisp access --- the window and buffer are verified live.
2. All dispatch_sync blocks run on the main thread where no
concurrent Lisp code can modify state between checks.
3. block_input prevents timer events and process output from
@@ -8597,26 +8730,26 @@ - (NSInteger)accessibilityInsertionPointLineNumber
return [self lineForAXIndex:point_idx];
}
-- (NSRange)accessibilityRangeForLine:(NSInteger)line
+- (NSString *)accessibilityStringForRange:(NSRange)range
{
if (![NSThread isMainThread])
{
- __block NSRange result;
+ __block NSString *result;
dispatch_sync (dispatch_get_main_queue (), ^{
- result = [self accessibilityRangeForLine:line];
+ result = [self accessibilityStringForRange:range];
});
return result;
}
[self ensureTextCache];
- if (!cachedText || line < 0)
- return NSMakeRange (NSNotFound, 0);
-
- NSUInteger len = [cachedText length];
- if (len == 0)
- return (line == 0) ? NSMakeRange (0, 0)
- : NSMakeRange (NSNotFound, 0);
+ if (!cachedText || range.location + range.length > [cachedText length])
+ return @"";
+ return [cachedText substringWithRange:range];
+}
- return [self rangeForLine:(NSUInteger)line textLength:len];
+- (NSAttributedString *)accessibilityAttributedStringForRange:(NSRange)range
+{
+ NSString *str = [self accessibilityStringForRange:range];
+ return [[[NSAttributedString alloc] initWithString:str] autorelease];
}
- (NSInteger)accessibilityLineForIndex:(NSInteger)index
@@ -8638,6 +8771,29 @@ - (NSInteger)accessibilityLineForIndex:(NSInteger)index
idx = [cachedText length];
return [self lineForAXIndex:idx];
+
+}
+
+- (NSRange)accessibilityRangeForLine:(NSInteger)line
+{
+ if (![NSThread isMainThread])
+ {
+ __block NSRange result;
+ dispatch_sync (dispatch_get_main_queue (), ^{
+ result = [self accessibilityRangeForLine:line];
+ });
+ return result;
+ }
+ [self ensureTextCache];
+ if (!cachedText || line < 0)
+ return NSMakeRange (NSNotFound, 0);
+
+ NSUInteger len = [cachedText length];
+ if (len == 0)
+ return (line == 0) ? NSMakeRange (0, 0)
+ : NSMakeRange (NSNotFound, 0);
+
+ return [self rangeForLine:(NSUInteger)line textLength:len];
}
- (NSRange)accessibilityRangeForIndex:(NSInteger)index
@@ -8840,7 +8996,7 @@ - (NSRect)accessibilityFrame
/* ===================================================================
- EmacsAccessibilityBuffer (Notifications) — AX event dispatch
+ EmacsAccessibilityBuffer (Notifications) --- AX event dispatch
These methods notify VoiceOver of text and selection changes.
Called from the redisplay cycle (postAccessibilityUpdates).
@@ -8855,7 +9011,7 @@ - (void)postTextChangedNotification:(ptrdiff_t)point
if (point > self.cachedPoint
&& point - self.cachedPoint == 1)
{
- /* Single char inserted — refresh cache and grab it. */
+ /* Single char inserted --- refresh cache and grab it. */
[self invalidateTextCache];
[self ensureTextCache];
if (cachedText)
@@ -8874,7 +9030,7 @@ - (void)postTextChangedNotification:(ptrdiff_t)point
/* Update cachedPoint here so the selection-move branch does NOT
fire for point changes caused by edits. WebKit and Chromium
never send both ValueChanged and SelectedTextChanged for the
- same user action — they are mutually exclusive. */
+ same user action --- they are mutually exclusive. */
self.cachedPoint = point;
NSDictionary *change = @{
@@ -9268,16 +9424,80 @@ - (void)postAccessibilityNotificationsForFrame:(struct frame *)f
BOOL markActive = !NILP (BVAR (b, mark_active));
/* --- Text changed (edit) --- */
+ ptrdiff_t chars_modiff = BUF_CHARS_MODIFF (b);
if (modiff != self.cachedModiff)
{
self.cachedModiff = modiff;
- [self postTextChangedNotification:point];
+ /* Only post ValueChanged when actual characters changed.
+ Text property changes (e.g. face updates from
+ vertico--prompt-selection) bump BUF_MODIFF but not
+ BUF_CHARS_MODIFF. Posting ValueChanged for property-only
+ changes causes VoiceOver to say "new line" when the diff
+ is non-empty due to overlay content changes. */
+ if (chars_modiff != self.cachedCharsModiff)
+ {
+ self.cachedCharsModiff = chars_modiff;
+ [self postTextChangedNotification:point];
+ }
+ }
+
+
+ /* --- Overlay content changed (e.g. Vertico/Ivy candidate switch) ---
+ Check independently of the modiff branch above, because
+ frameworks like Vertico bump BOTH BUF_MODIFF (via text property
+ changes in vertico--prompt-selection) and BUF_OVERLAY_MODIFF
+ (via overlay-put) in the same command cycle. If this were an
+ else-if, the modiff branch would always win and overlay
+ announcements would never fire.
+ Do NOT invalidate the text cache --- the buffer text has not
+ changed, and cache invalidation causes VoiceOver to diff old
+ vs new AX text and announce spurious "new line". */
+ if (BUF_OVERLAY_MODIFF (b) != self.cachedOverlayModiff)
+ {
+ self.cachedOverlayModiff = BUF_OVERLAY_MODIFF (b);
+
+ /* Overlay completion candidates (Vertico, Icomplete, Ivy) are
+ displayed in the minibuffer. In normal editing buffers,
+ font-lock and other modes change BUF_OVERLAY_MODIFF on
+ every redisplay, triggering O(overlays) work per keystroke.
+ Restrict the scan to minibuffer windows. */
+ if (MINI_WINDOW_P (w))
+ {
+ int selected_line = -1;
+ NSString *candidate
+ = ns_ax_selected_overlay_text (b, BUF_BEGV (b), BUF_ZV (b),
+ &selected_line);
+ if (candidate)
+ {
+ /* Deduplicate: only announce when the candidate changed. */
+ if (![candidate isEqualToString:
+ self.cachedCompletionAnnouncement])
+ {
+ self.cachedCompletionAnnouncement = candidate;
+
+ /* Announce the candidate text directly via NSApp.
+ Do NOT post SelectedTextChanged --- that would cause
+ VoiceOver to read the AX text at the cursor position
+ (the minibuffer input line), not the overlay candidate.
+ AnnouncementRequested with High priority interrupts
+ any current speech and announces our text. */
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: candidate,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+ }
+ }
+ }
}
/* --- Cursor moved or selection changed ---
- Use 'else if' — edits and selection moves are mutually exclusive
- per the WebKit/Chromium pattern. */
- else if (point != self.cachedPoint || markActive != self.cachedMarkActive)
+ Independent check from the overlay branch above. */
+ if (point != self.cachedPoint || markActive != self.cachedMarkActive)
{
ptrdiff_t oldPoint = self.cachedPoint;
BOOL oldMarkActive = self.cachedMarkActive;
@@ -9295,8 +9515,14 @@ - (void)postAccessibilityNotificationsForFrame:(struct frame *)f
bool isCtrlNP = ns_ax_event_is_line_nav_key (&ctrlNP);
/* --- Granularity detection --- */
+ /* Use cached text as-is; do NOT call ensureTextCache here.
+ ensureTextCache is O(visible-buffer-text) and must not run on
+ every redisplay cycle. Using stale cached text for granularity
+ classification is safe: the worst case is an incorrect
+ granularity hint (defaulting to unknown), which causes VoiceOver
+ to make its own determination. Fresh text is always available
+ to VoiceOver via the AX getter path (accessibilityValue etc.). */
NSInteger granularity = ns_ax_text_selection_granularity_unknown;
- [self ensureTextCache];
if (cachedText && oldPoint > 0)
{
NSUInteger tlen = [cachedText length];
@@ -12457,7 +12683,7 @@ - (int) fullscreenState
if (WINDOW_LEAF_P (w))
{
- /* Buffer element — reuse existing if available. */
+ /* Buffer element --- reuse existing if available. */
EmacsAccessibilityBuffer *elem
= [existing objectForKey:[NSValue valueWithPointer:w]];
if (!elem)
@@ -12491,7 +12717,7 @@ - (int) fullscreenState
}
else
{
- /* Internal (combination) window — recurse into children. */
+ /* Internal (combination) window --- recurse into children. */
Lisp_Object child = w->contents;
while (!NILP (child))
{
@@ -12603,7 +12829,7 @@ - (void)postAccessibilityUpdates
accessibilityUpdating = YES;
/* Detect window tree change (split, delete, new buffer). Compare
- FRAME_ROOT_WINDOW — if it changed, the tree structure changed. */
+ FRAME_ROOT_WINDOW --- if it changed, the tree structure changed. */
Lisp_Object curRoot = FRAME_ROOT_WINDOW (emacsframe);
if (!EQ (curRoot, lastRootWindow))
{
@@ -12612,12 +12838,12 @@ - (void)postAccessibilityUpdates
}
/* If tree is stale, rebuild FIRST so we don't iterate freed
- window pointers. Skip notifications for this cycle — the
+ window pointers. Skip notifications for this cycle --- the
freshly-built elements have no previous state to diff against. */
if (!accessibilityTreeValid)
{
[self rebuildAccessibilityTree];
- /* Invalidate span cache — window layout changed. */
+ /* Invalidate span cache --- window layout changed. */
for (EmacsAccessibilityElement *elem in accessibilityElements)
if ([elem isKindOfClass: [EmacsAccessibilityBuffer class]])
[(EmacsAccessibilityBuffer *) elem invalidateInteractiveSpans];
--
2.43.0

913
patches/0008-ns-announce-child-frame-completion-candidates-for-Vo.patch Normal file
View File

@@ -0,0 +1,913 @@
From 5bef7fa553d0dfd9ab933d341a8115d42e026b42 Mon Sep 17 00:00:00 2001
From: Martin Sukany <martin@sukany.cz>
Date: Mon, 2 Mar 2026 18:49:13 +0100
Subject: [PATCH 9/9] ns: announce child frame completion candidates for
VoiceOver
Child frame popups (Corfu, Company-mode child frames) render completion
candidates in a separate frame whose buffer is not accessible via the
minibuffer overlay path. This patch scans child frame buffers for
selected candidates and announces them via VoiceOver.
* src/nsterm.h (EmacsView): Add childFrameLastBuffer, childFrameLastModiff,
childFrameLastCandidate, childFrameCompletionActive, lastEchoCharsModiff
ivars. Initialize childFrameLastBuffer to Qnil in initFrameFromEmacs:.
(EmacsAccessibilityBuffer): Add voiceoverSetPoint ivar.
* src/nsterm.m (ns_ax_selected_child_frame_text): New function; scans
child frame buffer text for the selected completion candidate.
(announceChildFrameCompletion): New method; scans child frame buffers
for selected completion candidates. Store childFrameLastBuffer as
BVAR(b, name) (buffer name symbol, GC-reachable via obarray) rather
than a raw buffer pointer to avoid a dangling pointer after buffer kill.
(postEchoAreaAnnouncementIfNeeded): New method; announces echo area
changes (e.g., "Wrote file", "Quit") for commands that produce output
while the minibuffer is inactive.
(postAccessibilityNotificationsForFrame:): Drive child frame and echo
area announcements. Add voiceoverSetPoint flag and singleLineMove
adjacency detection to distinguish VoiceOver-initiated cursor moves
from Emacs-initiated moves; sequential adjacent-line moves use
next/previous direction, teleports use discontiguous. Add didTextChange
guard to suppress overlay completion announcements while the user types.
(setAccessibilitySelectedTextRange:): Set voiceoverSetPoint so that the
subsequent notification cycle uses sequential direction.
* doc/emacs/macos.texi (VoiceOver Accessibility): Update to document
echo area announcements and VoiceOver rotor cursor synchronization.
Remove Zoom section (covered by patch 0000). Fix dangling paragraph.
---
doc/emacs/macos.texi | 13 +-
etc/NEWS | 25 +-
src/nsterm.h | 21 ++
src/nsterm.m | 577 +++++++++++++++++++++++++++++++++++++------
4 files changed, 541 insertions(+), 95 deletions(-)
diff --git a/doc/emacs/macos.texi b/doc/emacs/macos.texi
index 72ac3a9aa9..cf5ed0ff28 100644
--- a/doc/emacs/macos.texi
+++ b/doc/emacs/macos.texi
@@ -309,10 +309,15 @@ Shift-modified movement announces selected or deselected text.
The @file{*Completions*} buffer announces each completion candidate
as you navigate, even while keyboard focus remains in the minibuffer.
- macOS Zoom (System Settings, Accessibility, Zoom) tracks the Emacs
-cursor automatically when set to follow keyboard focus. The cursor
-position is communicated via @code{UAZoomChangeFocus} and the
-@code{AXBoundsForRange} accessibility attribute.
+ Echo area messages are announced automatically. When a background
+operation completes and displays a message (e.g., @samp{Git finished},
+@samp{Wrote file}), VoiceOver reads it without requiring any action.
+Messages are suppressed while the minibuffer is active (i.e., while
+you are typing a command) to avoid interrupting prompt reading.
+
+ VoiceOver's rotor browse cursor stays synchronized with the Emacs
+cursor after large programmatic jumps (for example, heading navigation
+in Org mode, @code{xref-find-definitions}, or @code{imenu}).
@vindex ns-accessibility-enabled
To disable the accessibility interface entirely (for instance, to
diff --git a/etc/NEWS b/etc/NEWS
index 7f917f93b2..bbec21b635 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -88,10 +88,9 @@ When macOS Zoom is enabled (System Settings, Accessibility, Zoom,
Follow keyboard focus), Emacs informs Zoom of the text cursor position
after every cursor redraw via 'UAZoomChangeFocus'. The zoomed viewport
automatically tracks the insertion point across window splits and
-switches. Completion frameworks (Vertico, Icomplete, Ivy for overlay
-candidates; Corfu, Company-box for child frame popups) are also
-tracked: Zoom follows the selected candidate rather than the text
-cursor during completion.
+switches. Overlay-based completion frameworks and child-frame popup completions
+are also tracked: Zoom follows the selected candidate rather than the
+text cursor during completion.
+++
** 'line-spacing' now supports specifying spacing above the line.
@@ -4385,16 +4384,20 @@ allowing Emacs users access to speech recognition utilities.
Note: Accepting this permission allows the use of system APIs, which may
send user data to Apple's speech recognition servers.
----
++++
** VoiceOver accessibility support on macOS.
Emacs now exposes buffer content, cursor position, and interactive
elements to the macOS accessibility subsystem (VoiceOver). This
-includes AXBoundsForRange for macOS Zoom cursor tracking, line and
-word navigation announcements, Tab-navigable interactive spans
-(buttons, links, completion candidates), and completion announcements
-for the *Completions* buffer. The implementation uses a virtual
-accessibility tree with per-window elements, hybrid SelectedTextChanged
-and AnnouncementRequested notifications, and thread-safe text caching.
+includes:
+- Line and word navigation announcements via standard movement keys.
+- Echo area messages (e.g., "Wrote file", "Git finished") announced
+ automatically as they appear, without user interaction.
+- VoiceOver rotor cursor synchronization after large programmatic
+ jumps (]], M-<, xref, imenu, etc.).
+- Tab-navigable interactive spans (buttons, links, completion
+ candidates) within a buffer.
+- Completion announcements for the *Completions* buffer, overlay
+ completion UIs, and child-frame completion popup UIs.
Set 'ns-accessibility-enabled' to nil to disable the accessibility
interface and eliminate the associated overhead.
diff --git a/src/nsterm.h b/src/nsterm.h
index 72ca210bb0..1c79c8aced 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -504,9 +504,20 @@ typedef struct ns_ax_visible_run
NSUInteger lineCount; /* Entries in lineStartOffsets. */
NSMutableArray *cachedInteractiveSpans;
BOOL interactiveSpansDirty;
+ /* Set to YES in setAccessibilitySelectedTextRange: (VoiceOver moved
+ the cursor); reset to NO in postAccessibilityNotificationsForFrame:.
+ When YES, cursor notifications use sequential direction so VoiceOver
+ continues smooth line/character navigation without re-anchoring.
+ When NO, Emacs moved the cursor independently; use discontiguous
+ direction so VoiceOver re-anchors its browse cursor to the new
+ accessibilitySelectedTextRange. */
+ BOOL voiceoverSetPoint;
}
@property (nonatomic, retain) NSString *cachedText;
@property (nonatomic, assign) ptrdiff_t cachedTextModiff;
+/* Overlay modiff at last text cache rebuild. Tracked separately from
+ cachedOverlayModiff (which is used for completion announcements) so
+ that fold/unfold detection is independent of notification dispatch. */
@property (nonatomic, assign) ptrdiff_t cachedOverlayModiff;
@property (nonatomic, assign) ptrdiff_t cachedTextStart;
@property (nonatomic, assign) ptrdiff_t cachedModiff;
@@ -601,6 +612,14 @@ typedef NS_ENUM(NSInteger, EmacsAXSpanType)
Lisp_Object lastRootWindow;
BOOL accessibilityTreeValid;
BOOL accessibilityUpdating;
+ BOOL childFrameCompletionActive;
+ char *childFrameLastCandidate;
+ Lisp_Object childFrameLastBuffer;
+ EMACS_INT childFrameLastModiff;
+ /* Last BUF_CHARS_MODIFF seen for echo_area_buffer[0]. Used by
+ postEchoAreaAnnouncementIfNeeded to detect new echo area messages
+ independently of the per-element notification cycle. */
+ ptrdiff_t lastEchoCharsModiff;
#endif
BOOL font_panel_active;
NSFont *font_panel_result;
@@ -670,6 +689,8 @@ typedef NS_ENUM(NSInteger, EmacsAXSpanType)
- (void)rebuildAccessibilityTree;
- (void)invalidateAccessibilityTree;
- (void)postAccessibilityUpdates;
+- (void)postEchoAreaAnnouncementIfNeeded;
+- (void)announceChildFrameCompletion;
#endif
@end
diff --git a/src/nsterm.m b/src/nsterm.m
index c9fe93a57b..f7574efb39 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -1275,6 +1275,12 @@ If a completion candidate is selected (overlay or child frame),
static void
ns_zoom_track_completion (struct frame *f, EmacsView *view)
{
+ /* Zoom cursor tracking is controlled exclusively by
+ ns_zoom_enabled_p (). We do NOT gate on ns_accessibility_enabled:
+ users can run Zoom without VoiceOver, and those users should still
+ get completion-candidate tracking. ns_accessibility_enabled is
+ only set when a screen reader (VoiceOver or similar) activates the
+ AX layer; it has no bearing on the Zoom feature. */
if (!ns_zoom_enabled_p ())
return;
if (!WINDOWP (f->selected_window))
@@ -1417,9 +1423,14 @@ so the visual offset is (ov_line + 1) * line_h from
/* Track completion candidates for Zoom (overlay and child frame).
Runs after cursor tracking so the selected candidate overrides
- the default cursor position. */
+ the default cursor position. Guard with the same version check
+ as ns_zoom_track_completion's callee (UAZoomChangeFocus requires
+ macOS 10.10+). */
+#if defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
+ && MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
if (view)
ns_zoom_track_completion (f, view);
+#endif /* MAC_OS_X_VERSION_MIN_REQUIRED >= 101000 */
#endif /* NS_IMPL_COCOA */
/* Post accessibility notifications after each redisplay cycle. */
@@ -7407,6 +7418,119 @@ visual line index for Zoom (skip whitespace-only lines
return nil;
}
+
+
+/* Scan buffer text of a child frame for the selected completion
+ candidate. Used for frameworks that render candidates in a
+ child frame (e.g. Corfu, Company-box) rather than as overlay
+ strings. Check the effective face (text properties + overlays)
+ at the start of each line via Fget_char_property.
+
+ Returns the candidate text (trimmed) or nil. Sets
+ *OUT_LINE_INDEX to the 0-based line index for Zoom. */
+static NSString *
+ns_ax_selected_child_frame_text (struct buffer *b, Lisp_Object buf_obj,
+ int *out_line_index)
+{
+ *out_line_index = -1;
+ ptrdiff_t beg = BUF_BEGV (b);
+ ptrdiff_t end = BUF_ZV (b);
+
+ if (beg >= end)
+ return nil;
+
+ /* Temporarily switch to the child frame buffer.
+ Fbuffer_substring_no_properties operates on current_buffer,
+ which may be a different buffer (e.g., the parent frame's). */
+ specpdl_ref count = SPECPDL_INDEX ();
+ record_unwind_current_buffer ();
+ set_buffer_internal_1 (b);
+
+ /* Get buffer text as a Lisp string for efficient scanning.
+ The buffer is a small completion popup (typically < 20 lines). */
+ Lisp_Object str
+ = Fbuffer_substring_no_properties (make_fixnum (beg),
+ make_fixnum (end));
+ if (!STRINGP (str) || SCHARS (str) == 0)
+ {
+ unbind_to (count, Qnil);
+ return nil;
+ }
+
+ /* Scan newlines (same pattern as ns_ax_selected_overlay_text).
+ The data pointer is used only in this loop, before Lisp calls. */
+ const unsigned char *data = SDATA (str);
+ ptrdiff_t byte_len = SBYTES (str);
+ /* 128 lines is a safe upper bound for a completion child frame.
+ The caller rejects buffers larger than 10,000 characters
+ (BUF_ZV(b) - BUF_BEGV(b) > 10000 guard in announceChildFrameCompletion),
+ so at most ~10,000 / 1-byte-per-line = 10,000 lines could appear,
+ but completion popups are typically < 512 lines. Use 512 to match
+ the bound in ns_ax_selected_overlay_text; lines beyond 512 are
+ silently skipped. */
+ ptrdiff_t line_starts[512];
+ ptrdiff_t line_ends[512];
+ int nlines = 0;
+ ptrdiff_t char_pos = 0, byte_pos = 0, lstart = 0;
+
+ while (byte_pos < byte_len && nlines < 512)
+ {
+ if (data[byte_pos] == '\n')
+ {
+ if (char_pos > lstart)
+ {
+ line_starts[nlines] = lstart;
+ line_ends[nlines] = char_pos;
+ nlines++;
+ }
+ lstart = char_pos + 1;
+ }
+ if (STRING_MULTIBYTE (str))
+ byte_pos += BYTES_BY_CHAR_HEAD (data[byte_pos]);
+ else
+ byte_pos++;
+ char_pos++;
+ }
+ if (char_pos > lstart && nlines < 128)
+ {
+ line_starts[nlines] = lstart;
+ line_ends[nlines] = char_pos;
+ nlines++;
+ }
+
+ /* Find the line with a selected face. Use Fget_char_property on
+ the BUFFER (not the string) so overlay faces are included.
+ Offset string positions by beg to get buffer positions. */
+ for (int li = 0; li < nlines; li++)
+ {
+ ptrdiff_t buf_pos = beg + line_starts[li];
+ Lisp_Object face
+ = Fget_char_property (make_fixnum (buf_pos), Qface, buf_obj);
+
+ if (ns_ax_face_is_selected (face))
+ {
+ Lisp_Object line
+ = Fsubstring_no_properties (str,
+ make_fixnum (line_starts[li]),
+ make_fixnum (line_ends[li]));
+ NSString *text = [NSString stringWithLispString:line];
+ text = [text stringByTrimmingCharactersInSet:
+ [NSCharacterSet
+ whitespaceAndNewlineCharacterSet]];
+ if ([text length] > 0)
+ {
+ *out_line_index = li;
+ unbind_to (count, Qnil);
+ return text;
+ }
+ }
+ }
+
+ unbind_to (count, Qnil);
+ return nil;
+}
+
+
/* Build accessibility text for window W, skipping invisible text.
Populates *OUT_START with the buffer start charpos.
Populates *OUT_RUNS with an array of visible runs and *OUT_NRUNS
@@ -7440,11 +7564,12 @@ visual line index for Zoom (skip whitespace-only lines
return @"";
specpdl_ref count = SPECPDL_INDEX ();
- record_unwind_current_buffer ();
- /* block_input must come before record_unwind_protect_void (unblock_input):
- if specpdl_push were to fail after registration, the unwind handler
- would call unblock_input without a matching block_input. */
+ /* block_input must precede record_unwind_protect_void (unblock_input):
+ if anything between SPECPDL_INDEX and block_input were to throw,
+ the unwind handler would call unblock_input without a matching
+ block_input, corrupting the input-blocking reference count. */
block_input ();
+ record_unwind_current_buffer ();
record_unwind_protect_void (unblock_input);
if (b != current_buffer)
set_buffer_internal_1 (b);
@@ -8613,6 +8738,11 @@ - (void)setAccessibilitySelectedTextRange:(NSRange)range
[self ensureTextCache];
+ /* Record that VoiceOver (not Emacs) is moving the cursor so that the
+ subsequent postAccessibilityNotificationsForFrame: call can use the
+ correct sequential direction rather than forcing a re-anchor. */
+ voiceoverSetPoint = YES;
+
specpdl_ref count = SPECPDL_INDEX ();
record_unwind_current_buffer ();
/* block_input must come before record_unwind_protect_void (unblock_input). */
@@ -9060,20 +9190,38 @@ - (void)postFocusedCursorNotification:(ptrdiff_t)point
&& granularity
== ns_ax_text_selection_granularity_character);
- /* Always post SelectedTextChanged to interrupt VoiceOver reading
- and update cursor tracking / braille displays. */
+ /* Post SelectedTextChanged to interrupt VoiceOver reading and
+ update cursor tracking / braille displays.
+ For sequential moves (direction = next/previous): include
+ direction + granularity so VoiceOver reads the destination line
+ or word without additional state queries.
+ For discontiguous jumps (teleports, multi-line leaps): omit
+ direction and granularity and let VoiceOver determine what to read
+ from its own navigation state. This matches the pre-review
+ behaviour and ensures VoiceOver reads the full destination line
+ even when the jump skips blank or invisible lines (e.g. org-agenda
+ items separated by blank lines, where adjacency detection cannot
+ classify the move as singleLineMove). */
NSMutableDictionary *moveInfo = [NSMutableDictionary dictionary];
moveInfo[@"AXTextStateChangeType"]
= @(ns_ax_text_state_change_selection_move);
- moveInfo[@"AXTextSelectionDirection"] = @(direction);
moveInfo[@"AXTextChangeElement"] = self;
- /* Omit granularity for character moves so VoiceOver does not
- derive its own speech (it would read the wrong character
- for block-cursor mode). Include it for word/line/
- selection so VoiceOver reads the appropriate text. */
- if (!isCharMove)
- moveInfo[@"AXTextSelectionGranularity"] = @(granularity);
-
+ BOOL isDiscontiguous
+ = (direction == ns_ax_text_selection_direction_discontiguous);
+ if (!isDiscontiguous && !isCharMove)
+ {
+ moveInfo[@"AXTextSelectionDirection"] = @(direction);
+ moveInfo[@"AXTextSelectionGranularity"] = @(granularity);
+ }
+
+ /* Post on self (the EmacsAXBuffer element), not on the parent
+ EmacsView. When the notification originates from the element
+ whose selection changed, VoiceOver calls accessibilityLineForIndex:
+ on that element to determine the line to read. Posting from the
+ parent view with UIElementsKey causes VoiceOver to call
+ accessibilityLineForIndex: on the view instead, which returns an
+ incorrect range in specialised buffers (org-agenda, org-super-agenda)
+ where line geometry differs from plain text. */
ns_ax_post_notification_with_info (
self,
NSAccessibilitySelectedTextChangedNotification,
@@ -9173,12 +9321,17 @@ user expectation ("w" jumps to next word and reads it). */
}
}
- /* For focused line moves: always announce line text explicitly.
- SelectedTextChanged with granularity=line works for arrow keys,
- but C-n/C-p need the explicit announcement (VoiceOver processes
- these keystrokes differently from arrows).
+ /* Announce the destination line text for all line-granularity moves.
+ This covers two cases:
+ - C-n/C-p: SelectedTextChanged carries granularity=line, but
+ VoiceOver processes those keystrokes specially and may not
+ produce speech; the explicit announcement is the reliable path.
+ - Discontiguous jumps (]], M-<, xref, imenu, …): granularity=line
+ in the notification is omitted (see above) so VoiceOver will
+ not announce automatically; this explicit announcement fills
+ the gap.
In completion-list-mode, read the completion candidate instead
- of the whole line. */
+ of the full line. */
if (cachedText
&& granularity == ns_ax_text_selection_granularity_line)
{
@@ -9243,6 +9396,11 @@ - (void)postCompletionAnnouncementForBuffer:(struct buffer *)b
block_input ();
specpdl_ref count2 = SPECPDL_INDEX ();
+ /* Register unblock_input as an unwind action so that if any Lisp
+ call below signals (triggering a longjmp through unbind_to),
+ block_input is always paired with an unblock_input. The
+ unbind_to call at the end of the function unwinds this.
+ record_unwind_protect_void plus unbind_to is idempotent. */
record_unwind_protect_void (unblock_input);
record_unwind_current_buffer ();
if (b != current_buffer)
@@ -9419,12 +9577,29 @@ - (void)postAccessibilityNotificationsForFrame:(struct frame *)f
if (!b)
return;
+ /* Echo area announcements are handled in
+ postEchoAreaAnnouncementIfNeeded (called from postAccessibilityUpdates
+ before this per-element loop) so that they are never lost to a
+ concurrent tree rebuild. For the inactive minibuffer (minibuf_level
+ == 0), skip normal cursor and completion processing — there is no
+ meaningful cursor to track. */
+ if (MINI_WINDOW_P (w) && minibuf_level == 0)
+ return;
+
ptrdiff_t modiff = BUF_MODIFF (b);
ptrdiff_t point = BUF_PT (b);
BOOL markActive = !NILP (BVAR (b, mark_active));
/* --- Text changed (edit) --- */
ptrdiff_t chars_modiff = BUF_CHARS_MODIFF (b);
+ /* Track whether the user typed a character this redisplay cycle.
+ Used below to suppress overlay completion announcements: when the
+ user types, character echo (via postTextChangedNotification) must
+ take priority over overlay candidate updates. Without this guard,
+ Vertico/Ivy updates its overlay immediately after each keystroke,
+ and the High-priority overlay announcement interrupts the character
+ echo, effectively silencing typed characters. */
+ BOOL didTextChange = NO;
if (modiff != self.cachedModiff)
{
self.cachedModiff = modiff;
@@ -9438,6 +9613,7 @@ Text property changes (e.g. face updates from
{
self.cachedCharsModiff = chars_modiff;
[self postTextChangedNotification:point];
+ didTextChange = YES;
}
}
@@ -9460,41 +9636,49 @@ frameworks like Vertico bump BOTH BUF_MODIFF (via text property
displayed in the minibuffer. In normal editing buffers,
font-lock and other modes change BUF_OVERLAY_MODIFF on
every redisplay, triggering O(overlays) work per keystroke.
- Restrict the scan to minibuffer windows. */
- if (MINI_WINDOW_P (w))
+ Restrict the scan to minibuffer windows.
+ Skip overlay announcements when the user just typed a character
+ (didTextChange). Completion frameworks update their overlay
+ immediately after each keystroke; without this guard, the
+ overlay High-priority announcement would interrupt the character
+ echo produced by postTextChangedNotification, making typed
+ characters inaudible. VoiceOver should read the overlay
+ candidate only when the user navigates (C-n/C-p), not types. */
+ if (!MINI_WINDOW_P (w) || didTextChange)
+ goto skip_overlay_scan;
+
+ int selected_line = -1;
+ NSString *candidate
+ = ns_ax_selected_overlay_text (b, BUF_BEGV (b), BUF_ZV (b),
+ &selected_line);
+ if (candidate)
{
- int selected_line = -1;
- NSString *candidate
- = ns_ax_selected_overlay_text (b, BUF_BEGV (b), BUF_ZV (b),
- &selected_line);
- if (candidate)
+ /* Deduplicate: only announce when the candidate changed. */
+ if (![candidate isEqualToString:
+ self.cachedCompletionAnnouncement])
{
- /* Deduplicate: only announce when the candidate changed. */
- if (![candidate isEqualToString:
- self.cachedCompletionAnnouncement])
- {
- self.cachedCompletionAnnouncement = candidate;
-
- /* Announce the candidate text directly via NSApp.
- Do NOT post SelectedTextChanged --- that would cause
- VoiceOver to read the AX text at the cursor position
- (the minibuffer input line), not the overlay candidate.
- AnnouncementRequested with High priority interrupts
- any current speech and announces our text. */
- NSDictionary *annInfo = @{
- NSAccessibilityAnnouncementKey: candidate,
- NSAccessibilityPriorityKey:
- @(NSAccessibilityPriorityHigh)
- };
- ns_ax_post_notification_with_info (
- NSApp,
- NSAccessibilityAnnouncementRequestedNotification,
- annInfo);
- }
+ self.cachedCompletionAnnouncement = candidate;
+
+ /* Announce the candidate text directly via NSApp.
+ Do NOT post SelectedTextChanged --- that would cause
+ VoiceOver to read the AX text at the cursor position
+ (the minibuffer input line), not the overlay candidate.
+ AnnouncementRequested with High priority interrupts
+ any current speech and announces our text. */
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: candidate,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
}
}
}
+ skip_overlay_scan:
/* --- Cursor moved or selection changed ---
Independent check from the overlay branch above. */
if (point != self.cachedPoint || markActive != self.cachedMarkActive)
@@ -9504,7 +9688,18 @@ frameworks like Vertico bump BOTH BUF_MODIFF (via text property
self.cachedPoint = point;
self.cachedMarkActive = markActive;
- /* Compute direction. */
+ /* Compute direction.
+ When VoiceOver moved the cursor via setAccessibilitySelectedTextRange:
+ (voiceoverSetPoint == YES), use sequential next/previous so VoiceOver
+ continues smooth navigation from its current position.
+ When Emacs moved the cursor independently (voiceoverSetPoint == NO),
+ force discontiguous direction so VoiceOver re-anchors its browse
+ cursor to accessibilitySelectedTextRange; without this, VoiceOver's
+ internal browse position diverges from the Emacs insertion point and
+ subsequent VO+arrow navigation starts from the wrong location. */
+ BOOL emacsMovedCursor = !voiceoverSetPoint;
+ voiceoverSetPoint = NO; /* Consume the flag. */
+
NSInteger direction = ns_ax_text_selection_direction_discontiguous;
if (point > oldPoint)
direction = ns_ax_text_selection_direction_next;
@@ -9523,6 +9718,7 @@ granularity hint (defaulting to unknown), which causes VoiceOver
to make its own determination. Fresh text is always available
to VoiceOver via the AX getter path (accessibilityValue etc.). */
NSInteger granularity = ns_ax_text_selection_granularity_unknown;
+ BOOL singleLineMove = NO;
if (cachedText && oldPoint > 0)
{
NSUInteger tlen = [cachedText length];
@@ -9536,7 +9732,18 @@ to VoiceOver via the AX getter path (accessibilityValue etc.). */
NSRange newLine = [cachedText lineRangeForRange:
NSMakeRange (newIdx, 0)];
if (oldLine.location != newLine.location)
- granularity = ns_ax_text_selection_granularity_line;
+ {
+ granularity = ns_ax_text_selection_granularity_line;
+ /* Detect single adjacent-line move while oldLine/newLine
+ are in scope. Any command that steps exactly one line ---
+ C-n/C-p, evil j/k, outline-next-heading, etc. --- is
+ sequential. Multi-line teleports (]], M-<, xref, ...) are
+ not adjacent and will be marked discontiguous below.
+ Detected structurally: no package-specific code needed. */
+ BOOL adjFwd = (newLine.location == NSMaxRange (oldLine));
+ BOOL adjBwd = (NSMaxRange (newLine) == oldLine.location);
+ singleLineMove = adjFwd || adjBwd;
+ }
else
{
NSUInteger dist = (newIdx > oldIdx
@@ -9558,38 +9765,23 @@ to VoiceOver via the AX getter path (accessibilityValue etc.). */
granularity = ns_ax_text_selection_granularity_line;
}
- /* Treat all moves as Emacs-initiated until voiceoverSetPoint
- tracking is introduced (subsequent patch). */
- BOOL emacsMovedCursor = YES;
-
- /* Programmatic jumps that cross a line boundary (]], [[, M-<,
- xref, imenu, …) are discontiguous: the cursor teleported to an
- arbitrary position, not one sequential step forward/backward.
- Reporting AXTextSelectionDirectionDiscontiguous causes VoiceOver
- to re-anchor its rotor browse cursor at the new
- accessibilitySelectedTextRange rather than advancing linearly
- from its previous internal position. */
- if (!isCtrlNP && granularity == ns_ax_text_selection_granularity_line)
+
+ /* Multi-line teleports are discontiguous; single adjacent-line
+ steps stay sequential. */
+ if (!isCtrlNP && !singleLineMove
+ && granularity == ns_ax_text_selection_granularity_line)
direction = ns_ax_text_selection_direction_discontiguous;
- /* If Emacs moved the cursor (not VoiceOver), force discontiguous
- so VoiceOver re-anchors its browse cursor to the current
- accessibilitySelectedTextRange. This covers all Emacs-initiated
- moves: editing commands, ELisp, isearch, etc.
- Exception: C-n/C-p (isCtrlNP) already uses next/previous with
- line granularity; those are already sequential and VoiceOver
- handles them correctly. */
- if (emacsMovedCursor && !isCtrlNP)
+ /* Emacs-initiated teleports need re-anchor; sequential steps
+ (C-n/C-p or any adjacent-line command) do not. */
+ if (emacsMovedCursor && !isCtrlNP && !singleLineMove)
direction = ns_ax_text_selection_direction_discontiguous;
- /* Re-anchor VoiceOver's browse cursor for discontiguous (teleport)
- moves only. For sequential C-n/C-p (isCtrlNP), posting
- FocusedUIElementChanged on the window races with the
- AXSelectedTextChanged(granularity=line) notification and
- causes VoiceOver to drop the line-read speech. Sequential
- moves are already handled correctly by AXSelectedTextChanged
- with direction=next/previous + granularity=line. */
- if (emacsMovedCursor && !isCtrlNP && [self isAccessibilityFocused])
+ /* FocusedUIElementChanged only for teleports: posting it for
+ sequential moves races with AXSelectedTextChanged(granularity=line)
+ and causes VoiceOver to drop the line-read speech. */
+ if (emacsMovedCursor && !isCtrlNP && !singleLineMove
+ && [self isAccessibilityFocused])
{
NSWindow *win = [self.emacsView window];
if (win)
@@ -9748,6 +9940,13 @@ - (NSRect)accessibilityFrame
if (vis_start >= vis_end)
return @[];
+ /* block_input for the duration of the scan: the Lisp calls below
+ (Ftext_properties_at, Fplist_get, Foverlays_in, Foverlay_get,
+ Fnext_single_property_change, Fbuffer_substring_no_properties)
+ must not be interleaved with timer events or process sentinels
+ that could modify buffer state (e.g. invalidate vis_end).
+ record_unwind_protect_void guarantees unblock_input even if
+ a Lisp call signals. */
block_input ();
specpdl_ref blk_count = SPECPDL_INDEX ();
record_unwind_protect_void (unblock_input);
@@ -10056,6 +10255,10 @@ - (void)dealloc
#endif
[accessibilityElements release];
+#ifdef NS_IMPL_COCOA
+ if (childFrameLastCandidate)
+ xfree (childFrameLastCandidate);
+#endif
[[self menu] release];
[super dealloc];
}
@@ -11505,6 +11708,9 @@ - (instancetype) initFrameFromEmacs: (struct frame *)f
windowClosing = NO;
processingCompose = NO;
+#ifdef NS_IMPL_COCOA
+ childFrameLastBuffer = Qnil;
+#endif
scrollbarsNeedingUpdate = 0;
fs_state = FULLSCREEN_NONE;
fs_before_fs = next_maximized = -1;
@@ -12813,6 +13019,159 @@ - (id)accessibilityFocusedUIElement
The existing elements carry cached state (modiff, point) from the
previous redisplay cycle. Rebuilding first would create fresh
elements with current values, making change detection impossible. */
+
+/* Announce new echo area messages to VoiceOver.
+
+ This is called at the top of postAccessibilityUpdates, before any
+ tree rebuild. Keeping it here, rather than in the per-element loop
+ in postAccessibilityNotificationsForFrame, guarantees that echo area
+ messages (including "Quit" from C-g) are announced even when the
+ accessibility element tree is in the process of being rebuilt.
+
+ The guard minibuf_level == 0 ensures we only announce passive status
+ messages. While the user is actively typing (minibuf_level > 0),
+ character echo and completion announcements take precedence.
+
+ Reads echo_area_buffer[0] directly because with_echo_area_buffer()
+ sets current_buffer via set_buffer_internal_1() but does NOT call
+ Fset_window_buffer(), so the minibuffer window's contents pointer
+ still points to the inactive " *Minibuf-0*" buffer.
+ echo_area_buffer[] is maintained by setup_echo_area_for_printing()
+ and clear_message() in xdisp.c; its lifetime is the process lifetime
+ and it is valid whenever BUFFERP (echo_area_buffer[0]) is true. */
+- (void)postEchoAreaAnnouncementIfNeeded
+{
+ if (minibuf_level != 0)
+ return;
+ Lisp_Object ea = echo_area_buffer[0];
+ if (!BUFFERP (ea))
+ return;
+ struct buffer *eb = XBUFFER (ea);
+ if (!BUFFER_LIVE_P (eb))
+ return;
+ ptrdiff_t echo_chars = BUF_CHARS_MODIFF (eb);
+ if (echo_chars == lastEchoCharsModiff || BUF_ZV (eb) <= BUF_BEGV (eb))
+ return;
+ lastEchoCharsModiff = echo_chars;
+ /* Use specpdl to restore current_buffer if Fbuffer_string signals.
+ set_buffer_internal_1 is preferred over set_buffer_internal in
+ a redisplay context: it skips point-motion hooks that could
+ trigger further redisplay or modify buffer state unexpectedly. */
+ block_input ();
+ specpdl_ref count = SPECPDL_INDEX ();
+ record_unwind_protect_void (unblock_input);
+ record_unwind_current_buffer ();
+ set_buffer_internal_1 (eb);
+ Lisp_Object ls = Fbuffer_string ();
+ unbind_to (count, Qnil);
+ /* stringWithLispString: converts Emacs's internal multibyte encoding
+ to NSString correctly; a raw SSDATA cast would produce invalid
+ UTF-8 for non-ASCII characters. */
+ NSString *raw = [NSString stringWithLispString: ls];
+ NSString *msg = [raw stringByTrimmingCharactersInSet:
+ [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+ if ([msg length] == 0)
+ return;
+ NSDictionary *info = @{
+ NSAccessibilityAnnouncementKey: msg,
+ NSAccessibilityPriorityKey: @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp, NSAccessibilityAnnouncementRequestedNotification, info);
+}
+
+/* Announce the selected candidate in a child frame completion popup.
+ Handles Corfu, Company-box, and similar frameworks that render
+ candidates in a separate child frame rather than as overlay strings
+ in the minibuffer. */
+- (void)announceChildFrameCompletion
+{
+
+ /* Validate frame state --- child frames may be partially
+ initialized during creation. */
+ if (!WINDOWP (emacsframe->selected_window))
+ return;
+ struct window *w = XWINDOW (emacsframe->selected_window);
+ if (!BUFFERP (w->contents))
+ return;
+ struct buffer *b = XBUFFER (w->contents);
+
+ /* Only scan when the buffer content has actually changed.
+ This prevents redundant work on every redisplay tick and
+ also guards against re-entrance: if Lisp calls below
+ trigger redisplay, the modiff check short-circuits. */
+ if (!BUFFER_LIVE_P (b))
+ return;
+ EMACS_INT modiff = BUF_MODIFF (b);
+ /* Compare buffer identity via the buffer name symbol. Interned
+ symbols (obarray) are GC-reachable without staticpro(), avoiding
+ a direct struct buffer pointer in a non-GC-visible ObjC ivar.
+ Caveat: if the buffer is renamed (rename-buffer), the stored
+ symbol no longer matches the new name and the equality check
+ returns nil, causing one redundant re-scan. This is harmless ---
+ completion popups (Corfu, Company) are never renamed during a
+ completion session. Using a sequence number would avoid the
+ rename edge case but would require another ivar; the name symbol
+ is a pragmatic, GC-safe approximation. */
+ if (EQ (childFrameLastBuffer, BVAR (b, name))
+ && modiff == childFrameLastModiff)
+ return;
+ childFrameLastBuffer = BVAR (b, name);
+ childFrameLastModiff = modiff;
+
+ /* Skip buffers larger than a typical completion popup.
+ This avoids scanning eldoc, which-key, or other child
+ frame buffers that are not completion UIs. */
+ if (BUF_ZV (b) - BUF_BEGV (b) > 10000)
+ return;
+
+ int selected_line = -1;
+ /* block_input prevents timer events and process output from
+ interleaving with the Lisp calls inside
+ ns_ax_selected_child_frame_text (Fbuffer_substring_no_properties,
+ Fget_char_property, etc.). record_unwind_protect_void ensures
+ unblock_input is called even if a Lisp call signals. */
+ block_input ();
+ specpdl_ref blk_count = SPECPDL_INDEX ();
+ record_unwind_protect_void (unblock_input);
+ NSString *candidate
+ = ns_ax_selected_child_frame_text (b, w->contents, &selected_line);
+ unbind_to (blk_count, Qnil);
+
+ if (!candidate)
+ return;
+
+ /* Deduplicate --- avoid re-announcing the same candidate. */
+ const char *cstr = [candidate UTF8String];
+ if (childFrameLastCandidate && strcmp (cstr, childFrameLastCandidate) == 0)
+ return;
+ xfree (childFrameLastCandidate);
+ childFrameLastCandidate = xstrdup (cstr);
+
+ NSDictionary *annInfo = @{
+ NSAccessibilityAnnouncementKey: candidate,
+ NSAccessibilityPriorityKey:
+ @(NSAccessibilityPriorityHigh)
+ };
+ ns_ax_post_notification_with_info (
+ NSApp,
+ NSAccessibilityAnnouncementRequestedNotification,
+ annInfo);
+
+ /* Mark the parent as having an active child frame completion.
+ When the child frame closes, the parent's next accessibility
+ cycle will post FocusedUIElementChanged to restore VoiceOver's
+ focus to the buffer text element. */
+ struct frame *parent = FRAME_PARENT_FRAME (emacsframe);
+ if (parent)
+ {
+ EmacsView *parentView = FRAME_NS_VIEW (parent);
+ if (parentView)
+ parentView->childFrameCompletionActive = YES;
+ }
+
+}
+
- (void)postAccessibilityUpdates
{
NSTRACE ("[EmacsView postAccessibilityUpdates]");
@@ -12823,11 +13182,69 @@ - (void)postAccessibilityUpdates
/* Re-entrance guard: VoiceOver callbacks during notification posting
can trigger redisplay, which calls ns_update_end, which calls us
- again. Prevent infinite recursion. */
+ again. Prevent infinite recursion. This MUST come before the
+ child frame check --- announceChildFrameCompletion makes Lisp
+ calls that can trigger redisplay. */
if (accessibilityUpdating)
return;
accessibilityUpdating = YES;
+ /* Announce echo area messages (e.g. "Quit", "Wrote file") before
+ any tree-rebuild check. This must run even when the element tree
+ is being rebuilt to avoid missing time-sensitive status messages. */
+ [self postEchoAreaAnnouncementIfNeeded];
+
+ /* Child frame completion popup (Corfu, Company-box, etc.).
+ Child frames don't participate in the accessibility tree;
+ announce the selected candidate directly. */
+ if (FRAME_PARENT_FRAME (emacsframe))
+ {
+ [self announceChildFrameCompletion];
+ accessibilityUpdating = NO;
+ return;
+ }
+
+ /* If a child frame completion was recently active but no child
+ frame is visible anymore, refocus VoiceOver on the buffer
+ element so character echo and cursor tracking resume.
+ Skip if a child frame still exists (completion still open). */
+ if (childFrameCompletionActive)
+ {
+ Lisp_Object tail, frame;
+ BOOL childStillVisible = NO;
+ /* block_input protects the FOR_EACH_FRAME iteration: the
+ frame list (Vframe_list) is a Lisp_Object chain and must not
+ be modified by a timer or process sentinel mid-iteration. */
+ block_input ();
+ FOR_EACH_FRAME (tail, frame)
+ if (FRAME_PARENT_FRAME (XFRAME (frame)) == emacsframe
+ && FRAME_VISIBLE_P (XFRAME (frame)))
+ {
+ childStillVisible = YES;
+ break;
+ }
+ unblock_input ();
+
+ if (!childStillVisible)
+ {
+ childFrameCompletionActive = NO;
+ EmacsAccessibilityBuffer *focused = nil;
+ for (id elem in accessibilityElements)
+ if ([elem isKindOfClass:
+ [EmacsAccessibilityBuffer class]]
+ && [(EmacsAccessibilityBuffer *)elem
+ isAccessibilityFocused])
+ {
+ focused = elem;
+ break;
+ }
+ if (focused)
+ ns_ax_post_notification (
+ focused,
+ NSAccessibilityFocusedUIElementChangedNotification);
+ }
+ }
+
/* Detect window tree change (split, delete, new buffer). Compare
FRAME_ROOT_WINDOW --- if it changed, the tree structure changed. */
Lisp_Object curRoot = FRAME_ROOT_WINDOW (emacsframe);
--
2.43.0

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EMACS NS ACCESSIBILITY PATCHES
================================
author: Martin Sukany <martin@sukany.cz>
This directory contains two independent patch sets for the Emacs NS
(Cocoa) port:
A. Standalone Zoom patch (0000)
B. VoiceOver accessibility patch series (0001-0008)
Each can be applied independently. They do not depend on each other.
PATCH A: ZOOM CURSOR TRACKING (0000)
-------------------------------------
0000 ns: integrate with macOS Zoom for cursor tracking
A minimal patch that informs macOS Zoom of the text cursor position
after every physical cursor redraw. When Zoom is enabled (System
Settings -> Accessibility -> Zoom -> Follow keyboard focus), the
zoomed viewport automatically tracks the Emacs insertion point.
Files modified:
src/nsterm.h (+4 lines: lastZoomCursorRect ivar)
src/nsterm.m (+66 lines: cursor store + UAZoomChangeFocus)
etc/NEWS (+8 lines)
Implementation:
ns_draw_window_cursor stores the cursor rect in
view->lastZoomCursorRect and calls UAZoomChangeFocus() with
CG-space coordinates. A fallback call in ns_update_end ensures
Zoom tracks the cursor even after window switches (C-x o) where
the physical cursor may not be redrawn.
Coordinate conversion: EmacsView pixels (AppKit, flipped) ->
NSWindow -> NSScreen -> CGRect with y-flip for CoreGraphics
top-left origin.
No user option is needed: UAZoomEnabled() returns false when Zoom
is not active, so the overhead is a single function call per
redisplay cycle.
PATCH B: VOICEOVER ACCESSIBILITY (0001-0008)
----------------------------------------------
0001 ns: add accessibility base classes and text extraction
0002 ns: implement buffer accessibility element (core protocol)
0003 ns: add buffer notification dispatch and mode-line element
0004 ns: add interactive span elements for Tab navigation
0005 ns: integrate accessibility with EmacsView and redisplay
0006 doc: add VoiceOver accessibility section to macOS appendix
0007 ns: announce overlay completion candidates for VoiceOver
0008 ns: announce child frame completion candidates for VoiceOver
Files modified:
src/nsterm.h (~120 lines: class declarations, ivars)
src/nsterm.m (~3400 lines: implementation)
doc/emacs/macos.texi (~50 lines: documentation)
etc/NEWS (~8 lines)
This patch series adds comprehensive VoiceOver accessibility support
to the NS port. Before this patch, Emacs exposed only a minimal,
largely broken accessibility interface: EmacsView identified itself
as a generic NSAccessibilityGroup with no text content, no cursor
tracking, and no notifications.
ARCHITECTURE
------------
Virtual element tree above EmacsView:
EmacsAccessibilityElement (base)
+-- EmacsAccessibilityBuffer (AXTextArea; one per window)
+-- EmacsAccessibilityModeLine (AXStaticText; mode line)
+-- EmacsAccessibilityInteractiveSpan (AXButton/Link; Tab nav)
Each buffer element maintains a text cache with visible-run mapping
(O(log n) index lookup) and a precomputed line index (O(log L) line
queries). Notifications are posted asynchronously via dispatch_async
to prevent VoiceOver deadlocks.
Full details in the commit messages of each patch.
PERFORMANCE
-----------
ns-accessibility-enabled (DEFVAR_BOOL, default t):
When nil, no virtual elements are built, no notifications are
posted, and ns_draw_window_cursor skips the cursor rect store.
Zero overhead for users who do not use assistive technology.
When enabled:
- Text cache rebuilds only on BUF_MODIFF change (not per-keystroke)
- Index lookups are O(log n) via binary search on visible runs
- Line queries are O(log L) via precomputed lineStartOffsets
- Interactive span scan runs only when dirty flag is set
- No character cap: full buffer exposed, but cache is lazy
THREADING MODEL
---------------
Main thread: all Lisp calls, buffer mutations, notification posting.
AX thread: VoiceOver queries dispatch_sync to main thread.
Async notifications: dispatch_async prevents deadlock (same pattern
as WebKit's AXObjectCacheMac).
KNOWN LIMITATIONS
-----------------
- Mode line: CHAR_GLYPH only (icon fonts produce incomplete text)
- Overlay face matching: string containment ("current", "selected")
- GNUstep excluded (#ifdef NS_IMPL_COCOA)
- No multi-frame coordination
- Child frame static lastCandidate leaks at exit (minor)
TESTING
-------
See TESTING.txt for the full test matrix and results.
-- end of README --

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VoiceOver Accessibility Patch Series — Testing Evidence
=======================================================
Tester: Martin Sukany
Date: 2026-02-28
Environment
-----------
Host: CM2D4G-A9635005 (macOS 14)
Base: emacs master (upstream HEAD at time of test)
PATCH A: ZOOM (0000)
=====================
1. Patch Application
--------------------
PASS — Standalone Zoom patch applies cleanly via git-am.
No conflicts, no warnings.
2. Build
--------
PASS — Full NS (Cocoa) build completed successfully.
No warnings related to Zoom code.
3. Zoom Cursor Tracking
------------------------
PASS — UAZoomChangeFocus integration:
- Typing in buffer: Zoom tracks cursor OK
- M-x: Zoom moves to minibuffer OK
- C-x 2, C-x o cycling: Zoom follows across split windows OK
- C-x 2, C-x o, C-p: Zoom follows cursor up after switch OK
(ns_update_end fallback ensures tracking)
4. No-Zoom Overhead
--------------------
PASS — UAZoomEnabled() returns false when Zoom is off.
Single function call overhead per redisplay cycle (negligible).
PATCH B: VOICEOVER (0001-0008)
===============================
1. Patch Application
--------------------
PASS — All 8 patches applied cleanly via git-am:
0001 ns: add accessibility base classes and text extraction
0002 ns: implement buffer accessibility element (core protocol)
0003 ns: add buffer notification dispatch and mode-line element
0004 ns: add interactive span elements for Tab navigation
0005 ns: integrate accessibility with EmacsView and redisplay
0006 doc: add VoiceOver accessibility section to macOS appendix
0007 ns: announce overlay completion candidates for VoiceOver
0008 ns: announce child frame completion candidates for VoiceOver
No conflicts, no warnings.
2. Build
--------
PASS — Full NS (Cocoa) build completed successfully:
./autogen.sh OK
./configure --with-ns OK
make -j12 OK
make install OK
No warnings related to accessibility code.
3. Basic Launch
---------------
PASS — emacs -Q starts without errors or warnings.
4. VoiceOver — Basic Navigation
--------------------------------
PASS — VoiceOver active (Cmd+F5):
- Buffer name announced on focus OK
- Typing: each character announced OK
- Arrow keys / C-n / C-p: line navigation announced OK
- Word navigation (M-f / M-b): word announced OK
- M-x: switches to minibuffer, announces "minibuffer" OK
5. VoiceOver — Completions
---------------------------
PASS — Completion buffer interaction:
- M-x, partial command, Tab → *Completions* OK
- Tab cycling: announces each candidate OK
- No double-speech OK
6. VoiceOver — Window Switching
--------------------------------
PASS — Multiple windows (C-x 2, C-x 3, C-x o):
- Announces buffer name and content on switch OK
- Notification priority/preemption working OK
7. VoiceOver — Full Buffer Reading
-----------------------------------
PASS — VO+A reads entire buffer including off-screen content.
8. VoiceOver — Accessibility Tree
-----------------------------------
PASS — Virtual element tree dynamically maintained:
- Buffer elements created per window OK
- Mode-line elements readable via VO navigation OK
- Tree updates on split/close OK
9. VoiceOver — Selection
--------------------------
PASS — C-SPC + movement: announces "selected" with region.
10. VoiceOver — Org-mode Invisible Text
----------------------------------------
PASS — Folded text NOT read, unfolded text read correctly.
11. ERT — ns-accessibility-enabled Variable
--------------------------------------------
PASS — ns-accessibility-enabled bound, defaults to t.
12. VoiceOver — Overlay Completion (Patch 0007)
------------------------------------------------
PASS — Vertico overlay completion:
- Candidates announced on C-n / C-p OK
- Selected face detected (vertico-current) OK
- Deduplication working OK
- hl-line-mode compatibility (textDidChange flag) OK
13. VoiceOver — Child Frame Completion (Patch 0008)
----------------------------------------------------
PASS — Corfu child frame completion:
- Candidates announced via VoiceOver OK
- Selected face detected (corfu-current) OK
- No Emacs freeze (re-entrance guard) OK
- Focus restored to parent after popup closes OK
- Non-completion child frames skipped (10KB limit) OK
14. Performance — ns-accessibility-enabled=nil
-----------------------------------------------
PASS — When set to nil:
- No virtual elements built OK
- No notifications posted OK
- ns_draw_window_cursor skips cursor rect store OK
- Zero measurable overhead OK
15. Documentation
-----------------
PASS — Texinfo node accessible via C-h i g (emacs)VoiceOver.
etc/NEWS entry present and accurate.