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Cache the style element reference in _cssx-style-el so flush-cssx-to-dom never creates more than one. Previous code called dom-query on every flush, which could miss the element during rapid successive calls, creating duplicates. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
44 lines
2.0 KiB
Plaintext
44 lines
2.0 KiB
Plaintext
;; ---------------------------------------------------------------------------
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;; SX app boot — styles, behaviors, and post-render hooks
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;;
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;; Replaces inline_css and init_sx from Python app config.
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;; Called as a data-init script on every page.
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;; ---------------------------------------------------------------------------
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;; Framework styles — request indicators + link jiggle
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(collect! "cssx" ".sx-indicator{display:none}")
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(collect! "cssx" ".sx-request .sx-indicator{display:inline-flex}")
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(collect! "cssx" "@keyframes sxJiggle{0%,100%{transform:translateX(0)}25%{transform:translateX(-.5px)}75%{transform:translateX(.5px)}}")
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(collect! "cssx" "a.sx-request{animation:sxJiggle .3s ease-in-out infinite}")
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;; CSSX flush hook — inject collected CSS rules into a <style> tag.
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;; The spec calls (run-post-render-hooks) after hydration/swap/mount.
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;; This is the application's CSS injection strategy.
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(console-log "init-client: registering cssx flush hook, type:" (type-of (fn () nil)))
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(register-post-render-hook
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(fn ()
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(console-log "cssx flush: running, rules:" (len (collected "cssx")))
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(let ((rules (collected "cssx")))
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(when (not (empty? rules))
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(let ((style (or (dom-query "[data-cssx]")
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(let ((s (dom-create-element "style" nil)))
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(dom-set-attr s "data-cssx" "")
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(dom-append-to-head s)
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s))))
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(dom-set-prop style "textContent"
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(str (or (dom-get-prop style "textContent") "")
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(join "" rules))))
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(clear-collected! "cssx")))))
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;; Nav link aria-selected update on client-side routing
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(dom-listen (dom-body) "sx:clientRoute"
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(fn (e)
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(let ((p (get (event-detail e) "pathname")))
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(when p
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(for-each
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(fn (a) (dom-set-attr a "aria-selected" "false"))
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(dom-query-all "nav a[aria-selected]"))
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(for-each
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(fn (a) (dom-set-attr a "aria-selected" "true"))
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(dom-query-all (str "nav a[href=\"" p "\"]")))))))
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