[PATCH] browse-url.el mozilla tab support

[Simon Josefsson]

Ok to install this?  Does FSF have papers for Steve Youngs?  Maybe it
is too trivial to require papers, it is cut'n'paste of the existing
Galeon code.

2002-10-10  Simon Josefsson  <jas@extundo.com>

        * browse-url.el (browse-url-mozilla): Doc fix.

2002-10-10  Steve Youngs  <youngs@xemacs.org>

        * browse-url.el (browse-url-mozilla-new-window-is-tab): New.
        (browse-url-mozilla): Use it.

--- browse-url.el.~1.23.~       2002-07-25 20:49:46.000000000 +0200
+++ browse-url.el       2002-10-10 16:34:46.000000000 +0200
@@ -335,6 +335,13 @@
   :type '(repeat (string :tag "Argument"))
   :group 'browse-url)
 
+(defcustom browse-url-mozilla-new-window-is-tab nil
+  "*Whether to open up new windows in a tab or a new window.
+If non-nil, then open the URL in a new tab rather than a new window if
+`browse-url-mozilla' is asked to open it in a new window."
+  :type 'boolean
+  :group 'browse-url)
+
 (defcustom browse-url-galeon-new-window-is-tab nil
   "*Whether to open up new windows in a tab or a new window.
 If non-nil, then open the URL in a new tab rather than a new window if
@@ -853,6 +860,10 @@
 random existing one.  A non-nil interactive prefix argument reverses
 the effect of `browse-url-new-window-flag'.
 
+If `browse-url-mozilla-new-window-is-tab' is non-nil, then whenever a
+document would otherwise be loaded in a new window, it is loaded in a
+new tab in an existing window instead.
+
 When called non-interactively, optional second argument NEW-WINDOW is
 used instead of `browse-url-new-window-flag'."
   (interactive (browse-url-interactive-arg "URL: "))
@@ -862,7 +873,8 @@
     (setq url (replace-match
               (format "%%%x" (string-to-char (match-string 0 url))) t t url)))
   (let* ((process-environment (browse-url-process-environment))
-         (process (apply 'start-process
+         (process
+         (apply 'start-process
                         (concat "mozilla " url) nil
                         browse-url-mozilla-program
                         (append
@@ -870,7 +882,11 @@
                          (list "-remote"
                                (concat "openURL("
                                        url
-                                       (if new-window ",new-window")
+                               (if (browse-url-maybe-new-window
+                                    new-window)
+                                   (if browse-url-mozilla-new-window-is-tab
+                                       ",new-tab")
+                                 ",new-window")
                                        ")"))))))
     (set-process-sentinel process
                          `(lambda (process change)