jessieh/eldoc-frame
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Workaround childframe sizing issue (issue#68)

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* eldoc-box.el (eldoc-box--update-childframe-geometry): Set frame size
to something very small before calculating the text size.
This commit is contained in:
Yuan Fu 2023-04-27 00:58:17 -07:00
parent 90deae21cc
commit 4066df5a29
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eldoc-box.el
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@ -376,6 +376,17 @@ base on WIDTH and HEIGHT of childframe text window."
(defun eldoc-box--update-childframe-geometry (frame window)
"Update the size and the position of childframe.
FRAME is the childframe, WINDOW is the primary window."
;; WORKAROUND: See issue#68. If there’s some text with a display
;; property of (space :width text) -- which is what we apply onto
;; markdown separators -- ‘window-text-pixel-size’ wouldn’t return
;; the correct value. Instead, it returns the current window width.
;; So now the childram only grows in size and never shrinks. For
;; whatever reason, if we set the frame size very small before
;; calculating window’s text size, it can return the right value.
;; (My guess is that the function takes (space :width text) at face
;; value, but that can’t be the whole picture because it works fine
;; when I manually evaluate the function in the childframe...)
(set-frame-size frame 1 1 t)
(let* ((size
(window-text-pixel-size
window nil nil