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).
This commit is contained in:
@@ -1,4 +1,4 @@
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From b37888bd77b77009e40b564b05164c584c9305ae Mon Sep 17 00:00:00 2001
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From 877cfc076d708c0222ef0b6e1b47da9e94a74af7 Mon Sep 17 00:00:00 2001
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From: Martin Sukany <martin@sukany.cz>
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Date: Sat, 28 Feb 2026 14:46:25 +0100
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Subject: [PATCH] ns: announce overlay completion candidates for VoiceOver
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@@ -9,9 +9,10 @@ than buffer text. Without this patch, VoiceOver cannot read
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overlay-based completion UIs.
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Identify the selected candidate by scanning overlay strings for a
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face whose symbol name contains "current" or "selected" --- this
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matches vertico-current, icomplete-selected-match, ivy-current-match
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and similar framework faces without hard-coding any specific name.
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face whose symbol name contains "current", "selected", or
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"selection" --- this matches vertico-current, icomplete-selected-match,
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ivy-current-match, company-tooltip-selection, and similar framework
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faces without hard-coding any specific name.
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Key implementation details:
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@@ -31,17 +32,18 @@ Key implementation details:
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Do not post SelectedTextChanged (that reads the AX text at cursor
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position, which is the minibuffer input, not the candidate).
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- Zoom tracking: store the selected candidate's rect (computed from
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FRAME_LINE_HEIGHT and the candidate's visual line index) in
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overlayZoomRect. ns_draw_window_cursor checks overlayZoomActive
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and uses the stored rect instead of the text cursor rect, keeping
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Zoom focused on the candidate. The flag is cleared when the user
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types (BUF_CHARS_MODIFF changes) or when no candidate is found
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- Zoom tracking: store the selected candidate's rect (at the text
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area left edge, computed from FRAME_LINE_HEIGHT) in overlayZoomRect.
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ns_draw_window_cursor checks overlayZoomActive and uses the stored
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rect instead of the text cursor rect, keeping Zoom focused on the
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candidate line start. The flag is cleared when the user types
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(BUF_CHARS_MODIFF changes) or when no candidate is found
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(minibuffer exit, C-g).
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* src/nsterm.h (EmacsView): Add overlayZoomActive, overlayZoomRect.
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(EmacsAccessibilityBuffer): Add cachedCharsModiff.
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* src/nsterm.m (ns_ax_face_is_selected): New predicate.
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* src/nsterm.m (ns_ax_face_is_selected): New predicate. Match
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"current", "selected", and "selection" in face symbol names.
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(ns_ax_selected_overlay_text): New function.
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(ns_draw_window_cursor): Use overlayZoomRect when active.
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(EmacsAccessibilityBuffer ensureTextCache): Remove overlay_modiff.
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@@ -50,8 +52,8 @@ Independent overlay branch, BUF_CHARS_MODIFF gating, candidate
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announcement with overlay Zoom rect storage.
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---
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src/nsterm.h | 3 +
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src/nsterm.m | 316 +++++++++++++++++++++++++++++++++++++++++++++------
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2 files changed, 283 insertions(+), 36 deletions(-)
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src/nsterm.m | 319 +++++++++++++++++++++++++++++++++++++++++++++------
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2 files changed, 286 insertions(+), 36 deletions(-)
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diff --git a/src/nsterm.h b/src/nsterm.h
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index 51c30ca..5c15639 100644
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@@ -75,7 +77,7 @@ index 51c30ca..5c15639 100644
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BOOL font_panel_active;
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NSFont *font_panel_result;
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diff --git a/src/nsterm.m b/src/nsterm.m
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index 1780194..2fdea91 100644
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index 1780194..d13c5c7 100644
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--- a/src/nsterm.m
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+++ b/src/nsterm.m
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@@ -3258,7 +3258,12 @@ ns_draw_window_cursor (struct window *w, struct glyph_row *glyph_row,
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@@ -92,7 +94,7 @@ index 1780194..2fdea91 100644
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NSRect screenRect = [[view window] convertRectToScreen:windowRect];
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CGRect cgRect = NSRectToCGRect (screenRect);
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@@ -6915,11 +6920,153 @@ ns_create_font_panel_buttons (id target, SEL select, SEL cancel_action)
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@@ -6915,11 +6920,156 @@ ns_create_font_panel_buttons (id target, SEL select, SEL cancel_action)
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are truncated for accessibility purposes. */
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#define NS_AX_TEXT_CAP 100000
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@@ -106,10 +108,13 @@ index 1780194..2fdea91 100644
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+ if (SYMBOLP (face) && !NILP (face))
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+ {
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+ const char *name = SSDATA (SYMBOL_NAME (face));
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+ /* Substring match is intentionally broad; false positives
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+ are harmless since this runs only on overlay strings in
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+ the minibuffer during completion. */
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+ if (strstr (name, "current") || strstr (name, "selected"))
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+ /* Substring match is intentionally broad --- it catches
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+ vertico-current, icomplete-selected-match, ivy-current-match,
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+ company-tooltip-selection, and similar. False positives are
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+ harmless since this runs only on overlay strings during
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+ completion. */
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+ if (strstr (name, "current") || strstr (name, "selected")
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+ || strstr (name, "selection"))
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+ return true;
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+ }
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+ if (CONSP (face))
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@@ -247,7 +252,7 @@ index 1780194..2fdea91 100644
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static NSString *
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ns_ax_buffer_text (struct window *w, ptrdiff_t *out_start,
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ns_ax_visible_run **out_runs, NSUInteger *out_nruns)
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@@ -6996,7 +7143,7 @@ ns_ax_buffer_text (struct window *w, ptrdiff_t *out_start,
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@@ -6996,7 +7146,7 @@ ns_ax_buffer_text (struct window *w, ptrdiff_t *out_start,
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/* Extract this visible run's text. Use
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Fbuffer_substring_no_properties which correctly handles the
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@@ -256,7 +261,7 @@ index 1780194..2fdea91 100644
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include garbage bytes when the run spans the gap position. */
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Lisp_Object lstr = Fbuffer_substring_no_properties (
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make_fixnum (pos), make_fixnum (run_end));
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@@ -7077,7 +7224,7 @@ ns_ax_frame_for_range (struct window *w, EmacsView *view,
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@@ -7077,7 +7227,7 @@ ns_ax_frame_for_range (struct window *w, EmacsView *view,
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return NSZeroRect;
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/* charpos_start and charpos_len are already in buffer charpos
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@@ -265,7 +270,7 @@ index 1780194..2fdea91 100644
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charposForAccessibilityIndex which handles invisible text. */
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ptrdiff_t cp_start = charpos_start;
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ptrdiff_t cp_end = cp_start + charpos_len;
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@@ -7556,6 +7703,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7556,6 +7706,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@synthesize cachedOverlayModiff;
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@synthesize cachedTextStart;
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@synthesize cachedModiff;
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@@ -273,7 +278,7 @@ index 1780194..2fdea91 100644
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@synthesize cachedPoint;
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@synthesize cachedMarkActive;
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@synthesize cachedCompletionAnnouncement;
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@@ -7596,7 +7744,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7596,7 +7747,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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NSTRACE ("EmacsAccessibilityBuffer ensureTextCache");
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/* This method is only called from the main thread (AX getters
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dispatch_sync to main first). Reads of cachedText/cachedTextModiff
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@@ -282,7 +287,7 @@ index 1780194..2fdea91 100644
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write section at the end needs synchronization to protect
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against concurrent reads from AX server thread. */
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eassert ([NSThread isMainThread]);
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@@ -7609,16 +7757,15 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7609,16 +7760,15 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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return;
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ptrdiff_t modiff = BUF_MODIFF (b);
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@@ -305,7 +310,7 @@ index 1780194..2fdea91 100644
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&& cachedTextStart == BUF_BEGV (b)
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&& pt >= cachedTextStart
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&& (textLen == 0
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@@ -7635,7 +7782,6 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7635,7 +7785,6 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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[cachedText release];
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cachedText = [text retain];
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cachedTextModiff = modiff;
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@@ -313,7 +318,7 @@ index 1780194..2fdea91 100644
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cachedTextStart = start;
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if (visibleRuns)
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@@ -7661,7 +7807,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7661,7 +7810,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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/* Binary search: runs are sorted by charpos (ascending). Find the
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run whose [charpos, charpos+length) range contains the target,
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or the nearest run after an invisible gap. O(log n) instead of
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@@ -322,7 +327,7 @@ index 1780194..2fdea91 100644
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NSUInteger lo = 0, hi = visibleRunCount;
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while (lo < hi)
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{
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@@ -7674,7 +7820,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7674,7 +7823,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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else
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{
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/* Found: charpos is inside this run. Compute UTF-16 delta
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@@ -331,7 +336,7 @@ index 1780194..2fdea91 100644
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NSUInteger chars_in = (NSUInteger)(charpos - r->charpos);
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if (chars_in == 0 || !cachedText)
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return r->ax_start;
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@@ -7699,10 +7845,10 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7699,10 +7848,10 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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/* Convert accessibility string index to buffer charpos.
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Safe to call from any thread: uses only cachedText (NSString) and
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@@ -344,7 +349,7 @@ index 1780194..2fdea91 100644
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@synchronized (self)
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{
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if (visibleRunCount == 0)
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@@ -7736,7 +7882,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7736,7 +7885,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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return cp;
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}
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}
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@@ -353,7 +358,7 @@ index 1780194..2fdea91 100644
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if (lo > 0)
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{
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ns_ax_visible_run *last = &visibleRuns[visibleRunCount - 1];
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@@ -7758,7 +7904,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -7758,7 +7907,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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deadlocking the AX server thread. This is prevented by:
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1. validWindow checks WINDOW_LIVE_P and BUFFERP before every
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@@ -362,7 +367,7 @@ index 1780194..2fdea91 100644
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2. All dispatch_sync blocks run on the main thread where no
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concurrent Lisp code can modify state between checks.
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3. block_input prevents timer events and process output from
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@@ -8166,7 +8312,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8166,7 +8315,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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if (idx > [cachedText length])
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idx = [cachedText length];
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@@ -371,7 +376,7 @@ index 1780194..2fdea91 100644
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NSInteger line = 0;
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NSUInteger scan = 0;
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NSUInteger len = [cachedText length];
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@@ -8422,7 +8568,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8422,7 +8571,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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/* ===================================================================
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@@ -380,7 +385,7 @@ index 1780194..2fdea91 100644
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These methods notify VoiceOver of text and selection changes.
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Called from the redisplay cycle (postAccessibilityUpdates).
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@@ -8437,7 +8583,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8437,7 +8586,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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if (point > self.cachedPoint
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&& point - self.cachedPoint == 1)
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{
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@@ -389,7 +394,7 @@ index 1780194..2fdea91 100644
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[self invalidateTextCache];
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[self ensureTextCache];
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if (cachedText)
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@@ -8456,7 +8602,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8456,7 +8605,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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/* Update cachedPoint here so the selection-move branch does NOT
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fire for point changes caused by edits. WebKit and Chromium
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never send both ValueChanged and SelectedTextChanged for the
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@@ -398,7 +403,7 @@ index 1780194..2fdea91 100644
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self.cachedPoint = point;
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NSDictionary *change = @{
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@@ -8789,14 +8935,112 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8789,14 +8938,112 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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BOOL markActive = !NILP (BVAR (b, mark_active));
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/* --- Text changed (edit) --- */
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@@ -487,9 +492,9 @@ index 1780194..2fdea91 100644
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+ if (y_off < w2->pixel_height)
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+ {
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+ view->overlayZoomRect = NSMakeRect (
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+ w2->pixel_left,
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+ WINDOW_TOP_EDGE_Y (w2) + y_off,
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+ w2->pixel_width,
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+ WINDOW_TEXT_TO_FRAME_PIXEL_X (w2, 0),
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+ WINDOW_TO_FRAME_PIXEL_Y (w2, y_off),
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+ FRAME_COLUMN_WIDTH (f2),
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+ line_h);
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+ view->overlayZoomActive = YES;
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+ }
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@@ -513,7 +518,7 @@ index 1780194..2fdea91 100644
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per the WebKit/Chromium pattern. */
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else if (point != self.cachedPoint || markActive != self.cachedMarkActive)
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{
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@@ -8966,7 +9210,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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@@ -8966,7 +9213,7 @@ ns_ax_completion_text_for_span (EmacsAccessibilityBuffer *elem,
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/* ===================================================================
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@@ -522,7 +527,7 @@ index 1780194..2fdea91 100644
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=================================================================== */
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/* Scan visible range of window W for interactive spans.
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@@ -9157,7 +9401,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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@@ -9157,7 +9404,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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- (BOOL) isAccessibilityFocused
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{
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/* Read the cached point stored by EmacsAccessibilityBuffer on the main
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@@ -531,7 +536,7 @@ index 1780194..2fdea91 100644
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EmacsAccessibilityBuffer *pb = self.parentBuffer;
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if (!pb)
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return NO;
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@@ -9174,7 +9418,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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@@ -9174,7 +9421,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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dispatch_async (dispatch_get_main_queue (), ^{
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/* lwin is a Lisp_Object captured by value. This is GC-safe
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because Lisp_Objects are tagged integers/pointers that
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@@ -540,7 +545,7 @@ index 1780194..2fdea91 100644
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Emacs. The WINDOW_LIVE_P check below guards against the
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window being deleted between capture and execution. */
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if (!WINDOWP (lwin) || NILP (Fwindow_live_p (lwin)))
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@@ -9200,7 +9444,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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@@ -9200,7 +9447,7 @@ ns_ax_scan_interactive_spans (struct window *w,
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@end
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@@ -549,7 +554,7 @@ index 1780194..2fdea91 100644
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Methods are kept here (same .m file) so they access the ivars
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declared in the @interface ivar block. */
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@implementation EmacsAccessibilityBuffer (InteractiveSpans)
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@@ -10520,13 +10764,13 @@ ns_in_echo_area (void)
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@@ -10520,13 +10767,13 @@ ns_in_echo_area (void)
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if (old_title == 0)
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{
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char *t = strdup ([[[self window] title] UTF8String]);
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@@ -565,7 +570,7 @@ index 1780194..2fdea91 100644
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[window setTitle: [NSString stringWithUTF8String: size_title]];
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[window display];
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xfree (size_title);
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@@ -11922,7 +12166,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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@@ -11922,7 +12169,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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if (WINDOW_LEAF_P (w))
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{
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@@ -574,7 +579,7 @@ index 1780194..2fdea91 100644
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EmacsAccessibilityBuffer *elem
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= [existing objectForKey:[NSValue valueWithPointer:w]];
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if (!elem)
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@@ -11956,7 +12200,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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@@ -11956,7 +12203,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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}
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else
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{
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@@ -583,7 +588,7 @@ index 1780194..2fdea91 100644
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Lisp_Object child = w->contents;
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while (!NILP (child))
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{
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@@ -12068,7 +12312,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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@@ -12068,7 +12315,7 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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accessibilityUpdating = YES;
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/* Detect window tree change (split, delete, new buffer). Compare
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@@ -592,7 +597,7 @@ index 1780194..2fdea91 100644
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Lisp_Object curRoot = FRAME_ROOT_WINDOW (emacsframe);
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if (!EQ (curRoot, lastRootWindow))
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{
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@@ -12077,12 +12321,12 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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@@ -12077,12 +12324,12 @@ ns_ax_collect_windows (Lisp_Object window, EmacsView *view,
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}
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/* If tree is stale, rebuild FIRST so we don't iterate freed
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Block a user