Guard pre-redisplay hook to prevent multi-frame feedback loop#371
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kovan wants to merge 1 commit intoalexluigit:mainfrom
Open
Guard pre-redisplay hook to prevent multi-frame feedback loop#371kovan wants to merge 1 commit intoalexluigit:mainfrom
kovan wants to merge 1 commit intoalexluigit:mainfrom
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`dirvish-pre-redisplay-h` is called via `pre-redisplay-functions` for every window that needs redisplay, but it unconditionally calls `dirvish--redisplay`. When dirvish is open in multiple frames, this creates a feedback loop: frame A's redisplay triggers frame B's, and vice versa, causing visible flickering in the preview window. Guard the hook so it only fires for the selected window in its frame. Fix: alexluigit#353 Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
dirvish-pre-redisplay-hso it only fires for the selected window in its frameContext
dirvish-pre-redisplay-his added topre-redisplay-functions, which calls it for every window that needs redisplay. The function unconditionally callsdirvish--redisplay, which refreshes UI across all session windows in the selected frame. When dirvish is open in multiple frames, this creates a feedback loop: frame A's redisplay triggers frame B's redisplay, and vice versa, causing visible flickering.The fix wraps the function body in
(when (eq (frame-selected-window) window) ...)so it only runs when the window being redisplayed is actually the selected window in its frame. This also simplifies thedirvish--selected-windowassignment since we already knowwindowequals(frame-selected-window).Fix: #353
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