From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#9779: No usable browser found on Lubuntu Date: Tue, 18 Oct 2011 12:04:10 +0300 Organization: JURTA Message-ID: <87d3duwtzj.fsf@mail.jurta.org> References: <87mxczb480.fsf@mail.jurta.org> <87y5wi3i0s.fsf@mail.jurta.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1318929197 5923 80.91.229.12 (18 Oct 2011 09:13:17 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 18 Oct 2011 09:13:17 +0000 (UTC) Cc: 9779@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Oct 18 11:13:13 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RG5jU-0006O9-SI for geb-bug-gnu-emacs@m.gmane.org; Tue, 18 Oct 2011 11:13:12 +0200 Original-Received: from localhost ([::1]:40979 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG5jU-0002P6-AL for geb-bug-gnu-emacs@m.gmane.org; Tue, 18 Oct 2011 05:13:12 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:45692) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG5jR-0002L2-DW for bug-gnu-emacs@gnu.org; Tue, 18 Oct 2011 05:13:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RG5jP-0003Se-1B for bug-gnu-emacs@gnu.org; Tue, 18 Oct 2011 05:13:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:48302) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG5jO-0003SV-SM for bug-gnu-emacs@gnu.org; Tue, 18 Oct 2011 05:13:06 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RG5kI-0007E4-Ee for bug-gnu-emacs@gnu.org; Tue, 18 Oct 2011 05:14:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 18 Oct 2011 09:14:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9779 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9779-submit@debbugs.gnu.org id=B9779.131892922027732 (code B ref 9779); Tue, 18 Oct 2011 09:14:02 +0000 Original-Received: (at 9779) by debbugs.gnu.org; 18 Oct 2011 09:13:40 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RG5js-0007D8-Po for submit@debbugs.gnu.org; Tue, 18 Oct 2011 05:13:39 -0400 Original-Received: from smarty.dreamhost.com ([208.113.175.8]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RG5jr-0007D0-0T for 9779@debbugs.gnu.org; Tue, 18 Oct 2011 05:13:36 -0400 Original-Received: from ps18281.dreamhostps.com (ps18281.dreamhost.com [69.163.218.105]) by smarty.dreamhost.com (Postfix) with ESMTP id 025B16E805E; Tue, 18 Oct 2011 02:12:38 -0700 (PDT) Original-Received: from localhost (ps18281.dreamhostps.com [69.163.218.105]) by ps18281.dreamhostps.com (Postfix) with ESMTP id 24E45AAB4B63; Tue, 18 Oct 2011 02:12:36 -0700 (PDT) In-Reply-To: <87y5wi3i0s.fsf@mail.jurta.org> (Juri Linkov's message of "Tue, 18 Oct 2011 09:55:03 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.90 (x86_64-pc-linux-gnu) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Tue, 18 Oct 2011 05:14:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:52772 Archived-At: > Some relevant environment variables when logged in as "Lubuntu": > > DESKTOP_SESSION=Lubuntu > XDG_CURRENT_DESKTOP=LXDE > > Some relevant environment variables when logged in as "LXDE": > > DESKTOP_SESSION=LXDE > XDG_CURRENT_DESKTOP=LXDE > > The value of "DESKTOP_SESSION" looks like an arbitrary name of the > current session (the same string as displayed on the Login menu). > > It seems that "XDG_CURRENT_DESKTOP" is the most reliable variable > to determine whether the current desktop is LXDE. I discovered that /usr/bin/xdg-open contains the following function: # Checks for known desktop environments # set variable DE to the desktop environments name, lowercase detectDE() { if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde; elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome; elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome; elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce; elif [ x"$DESKTOP_SESSION" = x"LXDE" ]; then DE=lxde; else DE="" fi } But actually checking for "DESKTOP_SESSION" fails when logged in as "Lubuntu". So we have two options: implement the same checks (using "DESKTOP_SESSION") or check for "XDG_CURRENT_DESKTOP" that is more reliable than "DESKTOP_SESSION". Another problem is that when all checks fail in /usr/bin/xdg-open, it falls back to `open_generic'. But `browse-url-can-use-xdg-open' doesn't take into account the case of using `open_generic' in /usr/bin/xdg-open.