From: Leo Liu <sdl.web@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 13594@debbugs.gnu.org
Subject: bug#13594: 24.2.92; [PATCH] compilation-start doesn't consider nil OUTWIN
Date: Tue, 19 Mar 2013 23:39:54 +0800 [thread overview]
Message-ID: <m1wqt3s8j9.fsf@gmail.com> (raw)
In-Reply-To: <jwvy5erkmws.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Thu, 14 Feb 2013 09:15:49 -0500")
On 2013-02-14 22:15 +0800, Stefan Monnier wrote:
> Basically, as it currently stands "don't display at all" can be done in
> 2 ways:
> - make it work only for those callers that are prepared for it: for this
> case, we could simply define a t return value (returned from an
> ACTION) to mean "not displayed". Ideally, display-buffer would return
> nil in this case, but returning t is OK as well.
> - make it work everywhere: then we need display-buffer to return
> a "dummy" window (i.e. an object that behaves like a window object
> but that is not displayed).
>
> I'm beginning to think the best choice is the first option: it requires
> no changes right away, and we can progressively change callers so that
> they can handle the "not displayed" case.
Does this roughly follow your idea? i.e. document display-buffer to
allow non-window return value (I also get rid of mentioning nil). In
compile.el, handle non-window return value. The attached patch does
these two. (I'll prepare a thorough patch tomorrow.).
diff --git a/lisp/progmodes/compile.el b/lisp/progmodes/compile.el
index b82afc67..8edfe487 100644
--- a/lisp/progmodes/compile.el
+++ b/lisp/progmodes/compile.el
@@ -1638,7 +1638,8 @@ (defun compilation-start (command &optional mode name-function highlight-regexp)
(list command mode name-function highlight-regexp))
(set (make-local-variable 'revert-buffer-function)
'compilation-revert-buffer)
- (set-window-start outwin (point-min))
+ (when (windowp outwin)
+ (set-window-start outwin (point-min)))
;; Position point as the user will see it.
(let ((desired-visible-point
@@ -1647,15 +1648,18 @@ (defun compilation-start (command &optional mode name-function highlight-regexp)
(point-max)
;; Normally put it at the top.
(point-min))))
- (if (eq outwin (selected-window))
- (goto-char desired-visible-point)
- (set-window-point outwin desired-visible-point)))
+ (cond
+ ((windowp outwin)
+ (set-window-point outwin desired-visible-point))
+ ((eq outwin (selected-window))
+ (goto-char desired-visible-point))))
;; The setup function is called before compilation-set-window-height
;; so it can set the compilation-window-height buffer locally.
(if compilation-process-setup-function
(funcall compilation-process-setup-function))
- (compilation-set-window-height outwin)
+ (and (windowp outwin)
+ (compilation-set-window-height outwin))
;; Start the compilation.
(if (fboundp 'start-process)
(let ((proc
diff --git a/lisp/window.el b/lisp/window.el
index 63d75f60..e96c8c60 100644
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -5368,7 +5368,8 @@ (defun display-buffer (buffer-or-name &optional action frame)
"Display BUFFER-OR-NAME in some window, without selecting it.
BUFFER-OR-NAME must be a buffer or the name of an existing
buffer. Return the window chosen for displaying BUFFER-OR-NAME,
-or nil if no such window is found.
+or a non-nil value to mean one of the actions forbids displaying
+the buffer.
Optional argument ACTION, if non-nil, should specify a display
action. Its form is described below.
@@ -5394,7 +5395,9 @@ (defun display-buffer (buffer-or-name &optional action frame)
`display-buffer-fallback-action' (in order). Then it calls each
function in the combined function list in turn, passing the
buffer as the first argument and the combined alist as the second
-argument, until one of the functions returns non-nil.
+argument, until one of the functions returns non-nil. If the
+value is not a window object, the search stops and no buffer is
+displayed.
If ACTION is nil, the function list and the alist are built using
only the other variables mentioned above.
next prev parent reply other threads:[~2013-03-19 15:39 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-16 17:21 Planning Emacs-24.4 Stefan Monnier
2013-11-16 18:56 ` Bastien
2013-11-17 5:13 ` Leo Liu
2013-11-17 20:53 ` bug#13594: " Stefan Monnier
2013-11-18 8:41 ` Leo Liu
2013-11-18 9:53 ` Leo Liu
2013-11-18 10:00 ` Andreas Schwab
2013-11-18 10:17 ` Leo Liu
2013-11-18 10:26 ` Andreas Schwab
2013-11-18 10:35 ` Leo Liu
2013-11-18 10:38 ` Andreas Schwab
2013-11-18 11:09 ` Leo Liu
2013-11-18 11:25 ` Andreas Schwab
2013-11-18 11:59 ` Leo Liu
2013-11-18 10:46 ` martin rudalics
2013-01-31 10:43 ` bug#13594: 24.2.92; [PATCH] compilation-start doesn't consider nil OUTWIN Leo Liu
2013-01-31 12:35 ` Leo Liu
2013-01-31 15:14 ` Stefan Monnier
2013-01-31 15:21 ` Leo Liu
2013-02-05 10:58 ` Leo Liu
2013-02-05 11:57 ` Leo Liu
2013-02-05 23:25 ` Juri Linkov
2013-02-06 1:19 ` Leo Liu
2013-02-06 10:12 ` Juri Linkov
2013-02-06 15:35 ` Stefan Monnier
2013-02-06 23:40 ` Juri Linkov
2013-02-07 13:36 ` Stefan Monnier
2013-02-08 8:10 ` Juri Linkov
2013-02-08 14:36 ` Stefan Monnier
2013-02-09 9:22 ` martin rudalics
2013-02-10 10:01 ` Juri Linkov
2013-02-10 17:32 ` martin rudalics
2013-02-11 9:28 ` Juri Linkov
2013-02-11 17:31 ` martin rudalics
2013-02-11 17:55 ` Leo Liu
2013-02-14 8:22 ` Leo Liu
2013-02-14 14:15 ` Stefan Monnier
2013-03-19 15:39 ` Leo Liu [this message]
2013-03-20 3:12 ` Stefan Monnier
2013-03-20 4:37 ` Leo Liu
2013-03-20 12:51 ` Stefan Monnier
2013-11-17 5:18 ` Leo Liu
2013-11-17 9:48 ` martin rudalics
2013-02-08 9:59 ` martin rudalics
2013-11-18 11:16 ` bug#13594: Planning Emacs-24.4 Leo Liu
2013-11-18 13:19 ` martin rudalics
2013-11-18 14:56 ` Leo Liu
2013-11-18 15:20 ` martin rudalics
2013-11-18 15:48 ` Leo Liu
2013-11-19 0:33 ` Stefan Monnier
2013-11-19 0:54 ` Juri Linkov
2013-11-19 3:38 ` Stefan Monnier
2013-11-19 2:42 ` Leo Liu
2013-11-19 7:42 ` martin rudalics
2013-11-20 2:51 ` Leo Liu
2013-11-20 7:33 ` martin rudalics
2013-11-19 0:31 ` Stefan Monnier
2013-11-19 7:42 ` martin rudalics
2013-11-20 0:55 ` Juri Linkov
2013-11-20 3:26 ` Stefan Monnier
2013-11-21 0:30 ` Juri Linkov
2013-12-02 5:33 ` Leo Liu
2013-12-03 1:19 ` Juri Linkov
2013-12-03 3:23 ` Leo Liu
2013-12-03 7:56 ` martin rudalics
2013-11-20 7:34 ` martin rudalics
2013-11-18 13:55 ` Stefan Monnier
2013-11-18 15:32 ` martin rudalics
2013-11-19 13:44 ` Darren Hoo
2013-11-19 16:20 ` Eli Zaretskii
2013-11-20 6:58 ` Darren Hoo
2013-11-20 17:47 ` Eli Zaretskii
2013-11-23 3:12 ` Glenn Morris
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