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Kinneyzhang 2026-01-06 04:08:26 +08:00
parent 3e5773c2a2
commit e6a14e124f
1 changed files with 34 additions and 14 deletions
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tp.el
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@ -1015,11 +1015,20 @@ it will be applied to the text before updating."
(save-excursion
(tp--replace-reactive-text-in-buffer layer-name new-text props)))))))))))
(defvar tp-preserve-external-properties '(keymap mouse-face cursor pointer help-echo)
"List of text properties to preserve during reactive text updates.
These properties are typically set by external libraries (like twidget's event
system) and should not be overwritten when tp.el updates reactive text.
Properties in this list will be preserved from the buffer during updates,
while other properties will be replaced with the new values.")
(defun tp--replace-reactive-text-in-buffer (layer-name new-text props)
"Replace text in current buffer for reactive text with LAYER-NAME.
NEW-TEXT is the new text to replace with.
PROPS are the properties to apply to the new text.
Text properties embedded in NEW-TEXT are merged with PROPS."
+Text properties embedded in NEW-TEXT are merged with PROPS.
+Properties listed in `tp-preserve-external-properties' that were applied
+by other libraries are preserved during the update."
(goto-char (point-min))
(let ((match (text-property-search-forward 'tp-name layer-name t))
;; Merge embedded text properties from new-text into props
@ -1027,18 +1036,29 @@ Text properties embedded in NEW-TEXT are merged with PROPS."
(while match
(let* ((m-start (prop-match-beginning match))
(m-end (prop-match-end match))
(old-text (buffer-substring-no-properties m-start m-end)))
(if (equal old-text (substring-no-properties new-text))
;; Text content is the same, but properties may differ
;; Use set-text-properties to replace with merged properties
(set-text-properties m-start m-end merged-props)
;; Text content is different - delete old text and insert new
(delete-region m-start m-end)
(goto-char m-start)
(insert (substring-no-properties new-text))
;; Apply merged properties
(let ((new-end (+ m-start (length new-text))))
(set-text-properties m-start new-end merged-props))))
(old-text (buffer-substring-no-properties m-start m-end))
;; Preserve only specific external properties
(existing-props (text-properties-at m-start))
(preserved-props nil))
;; Extract only the explicitly listed external properties to preserve
(dolist (prop-name tp-preserve-external-properties)
(let ((val (plist-get existing-props prop-name)))
(when (and val (not (plist-member merged-props prop-name)))
(setq preserved-props
(plist-put preserved-props prop-name val)))))
;; Combine merged-props with preserved external props
(let ((final-props (append merged-props preserved-props)))
(if (equal old-text (substring-no-properties new-text))
;; Text content is the same, but properties may differ
;; Use set-text-properties to replace with final properties
(set-text-properties m-start m-end final-props)
;; Text content is different - delete old text and insert new
(delete-region m-start m-end)
(goto-char m-start)
(insert (substring-no-properties new-text))
;; Apply final properties
(let ((new-end (+ m-start (length new-text))))
(set-text-properties m-start new-end final-props)))))
;; Search for next match
(setq match (text-property-search-forward 'tp-name layer-name t)))))
@ -3008,7 +3028,7 @@ Recursively expands any nested layer names in the returned plist."
(when-let ((entry (cdr (assoc layer-name tp-layer-alist))))
;; Auto-include tp-name for layers with reactive deps
(let ((needs-tp-name (or include-tp-name
(tp--layer-has-reactive-deps-p layer-name))))
(tp--layer-has-reactive-deps-p layer-name))))
(cond
;; Unified format: entry is (ARGLIST BODY-FORM) where first elem is nil or a list
;; Check: exactly 2 elements and first is nil or a list of symbols