Work around a bug where the tab-line isn't taken into account

Stebalien · Stebalien · commit 9cdfe95066a6 · 2025-01-16T18:06:02.000Z
In Emacs before version 31, window-inside-absolute-pixel-edges returns the wrong y-offset when the per-buffer tab-line is enabled. The tab-line is taken into account when computing the window's height, so we adjust the y-offset after computing the height. Fixed upstream in https://debbugs.gnu.org/cgi/bugreport.cgi?bug=75576. * exwm-layout.el (exwm-layout--show): Adjust the window's y-offset to include the tab-line. (Bug #114)
diff --git a/exwm-layout.el b/exwm-layout.el
@@ -117,6 +117,8 @@ See variable `exwm-layout-auto-iconify'."
          (width (- (pop edges) x))
          (height (- (pop edges) y))
          frame-x frame-y frame-width frame-height)
+    (when (eval-when-compile (< emacs-major-version 31))
+      (setq y (+ y (window-tab-line-height window))))
     (with-current-buffer (exwm--id->buffer id)
       (when exwm--floating-frame
         (setq frame-width (frame-pixel-width exwm--floating-frame)
