bug#54333: 29.0.50; browse-url-chrome in Wayland/pgtk

[Stephen Eglen]

Hi,
using pgtk under Wayland with  sway window manager, the following file
should reproduce the error I'm seeing:

----------------------------------------------------------------------

;; 1. works
(browse-url-firefox "http://news.bbc.co.uk";)
;; 2. works (opens in chrome)
(browse-url-xdg-open "http://news.bbc.co.uk";)

;; 3. doesn't work
(browse-url-chrome "http://news.bbc.co.uk";)
;; 4. doesn't work
(browse-url-chromium "http://news.bbc.co.uk";)


;; 5. works, after deleting the process-environment line

(defun browse-url-chrome1 (url &optional _new-window)
  "Ask the Google Chrome WWW browser to load URL.
Default to the URL around or before point.  The strings in
variable `browse-url-chrome-arguments' are also passed to
Google Chrome.
The optional argument NEW-WINDOW is not used."
  (interactive (browse-url-interactive-arg "URL: "))
  (setq url (browse-url-encode-url url))
  (apply #'start-process
         (concat "google-chrome " url) nil
         browse-url-chrome-program
         (append
          browse-url-chrome-arguments
          (list url))))

(browse-url-chrome1 "http://news.bbc.co.uk";)

----------------------------------------------------------------------

browse-url-firefox and browse-url-xdg-open work as expected, opening the
web page in firefox and chrome respectively (chrome is my default under
xdg-open)

If however I do 3 or 4, I can't get the page to open in chrome or
chromium.

If I delete the following line from the defun of browse-url-chrome
  (let* ((process-environment (browse-url-process-environment)))

then browse-url-chrome1 works as expected.  Is there something about the
logic in browse-url-emacs-display that assumes X, rather than wayland?

(browse-url-emacs-display) returns "wayland-1"

whereas $DISPLAY in the shell is :0

Stephen




In GNU Emacs 29.0.50 (build 3, x86_64-pc-linux-gnu, GTK+ Version 3.24.31, cairo 
version 1.17.4)
 of 2022-03-10 built on light
Repository revision: c6e079ae15002268d90869a43f66d962175e4cdb
Repository branch: master
System Description: Manjaro Linux

Configured using:
 'configure --with-pgtk'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PGTK
PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP XIM
GTK3 ZLIB

Important settings:
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  locale-coding-system: utf-8-unix

Major mode: Lisp

Minor modes in effect:
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  csv-field-index-mode: t
  shell-dirtrack-mode: t
  recentf-mode: t
  TeX-PDF-mode: t
  straight-use-package-mode: t
  straight-package-neutering-mode: t
  display-time-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t

Load-path shadows:
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/home/stephen/.emacs.d/straight/build/lispy/elpa
/home/stephen/.emacs.d/straight/build/loccur/loccur hides 
~/langs/emacs/elisp-ds/loccur
/home/stephen/.emacs.d/straight/build/csv-mode/csv-mode hides 
~/langs/emacs/elisp-ds/csv-mode
~/langs/emacs/elisp-ds/emaxima/maxima-font-lock hides 
~/langs/emacs/maxima-font-lock
~/langs/emacs/elisp-ds/emaxima/maxima hides ~/langs/emacs/maxima
/home/stephen/.emacs.d/straight/build/transient/transient hides 
/usr/local/share/emacs/29.0.50/lisp/transient
~/langs/emacs/mspools hides /usr/local/share/emacs/29.0.50/lisp/mail/mspools
/home/stephen/.emacs.d/straight/build/let-alist/let-alist hides 
/usr/local/share/emacs/29.0.50/lisp/emacs-lisp/let-alist

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format-spec server hideshow-org hideshow cc-vars cc-defs ess ess-utils
ess-custom project ess-autoloads julia-repl-autoloads s-autoloads
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auth-source eieio eieio-core eieio-loaddefs password-cache json map
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hashtable-print-readable backquote threads dbusbind inotify
dynamic-setting system-font-setting font-render-setting cairo gtk pgtk
lcms2 multi-tty make-network-process emacs)

Memory information:
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