Package: emacs;
Reported by: Leo Liu <sdl.web <at> gmail.com>
Date: Sat, 16 Mar 2013 19:26:01 UTC
Severity: normal
Found in version 24.3
Done: Leo Liu <sdl.web <at> gmail.com>
Bug is archived. No further changes may be made.
Message #11 received at 13978 <at> debbugs.gnu.org (full text, mbox):
From: Leo Liu <sdl.web <at> gmail.com> To: Stefan Monnier <monnier <at> iro.umontreal.ca> Cc: 13978 <at> debbugs.gnu.org Subject: Re: bug#13978: 24.3; New minor mode eldoc-post-insert-mode Date: Sun, 17 Mar 2013 10:56:25 +0800
[Message part 1 (text/plain, inline)]
On 2013-03-17 05:55 +0800, Stefan Monnier wrote: > It's looking fairly good. Questions and comments inline below. Thanks for the time. > I'd call it eval-expression-minibuffer-setup-hook or maybe I'd just call > an emacs-lisp-minibuffer-mode (which might need to not be an actual > major-mode for technical reasons, but could try to be close to one). > > I'd like to move towards using major modes in the minibuffer, so we > might as well plan for that future. I renamed it to eval-expression-minibuffer-setup-hook for now. The major mode is a nice idea which I'll find another time to do it. I want the font-locking to work as well. For the moment font-lock-mode ignores all invisible buffers. > Please give it `eldoc-minibuffer-message' as default value rather > than nil. Better yet give it `message' as default value and set it to > a different value for in-minibuffer use. Done! > Shouldn't that be called `eldoc-minibuffer-mode'? > And why not just use eldoc-mode? eldoc-post-insert-mode can work everywhere not just in the minibuffer. The idea is from me finding eldoc-mode too distracting by printing 'constantly' to the echo area. Thus eldoc-post-insert-mode only shows the info when you are typing. (For me it shows the info at the moment I need it ;)). > I removed (not (eq (selected-window) (minibuffer-window)) and (not > cursor-in-echo-area) from my eldoc-display-message-no-interference-p > and haven't noticed any downside, so maybe we can just do that and avoid > creating eldoc-print-current-symbol-info-1 and eldoc-minibuffer-mode. Done. > Stefan Leo
[0001-Implement-eldoc-post-insert-mode.patch (text/x-patch, inline)]
From 4e4335d3cd3ee8f5e5f9d426e399f39b0aff05c5 Mon Sep 17 00:00:00 2001
From: Leo Liu <sdl.web <at> gmail.com>
Date: Sun, 17 Mar 2013 10:44:21 +0800
Subject: [PATCH] Implement eldoc-post-insert-mode
http://debbugs.gnu.org/13978
---
lisp/emacs-lisp/eldoc.el | 79 ++++++++++++++++++++++++++++++++++++++----------
lisp/simple.el | 11 +++++--
2 files changed, 71 insertions(+), 19 deletions(-)
diff --git a/lisp/emacs-lisp/eldoc.el b/lisp/emacs-lisp/eldoc.el
index 0f018573..0b78530c 100644
--- a/lisp/emacs-lisp/eldoc.el
+++ b/lisp/emacs-lisp/eldoc.el
@@ -146,6 +146,10 @@ (defvar eldoc-current-idle-delay eldoc-idle-delay
"Idle time delay currently in use by timer.
This is used to determine if `eldoc-idle-delay' is changed by the user.")
+(defvar eldoc-message-function 'eldoc-minibuffer-message
+ "The function used by `eldoc-message' to display messages.
+It should receive the same arguments as `message'.")
+
;;;###autoload
(define-minor-mode eldoc-mode
@@ -169,6 +173,19 @@ (define-minor-mode eldoc-mode
(remove-hook 'post-command-hook 'eldoc-schedule-timer)
(remove-hook 'pre-command-hook 'eldoc-pre-command-refresh-echo-area)))
+(define-minor-mode eldoc-post-insert-mode nil
+ :group 'eldoc :lighter (:eval (if eldoc-mode ""
+ (concat eldoc-minor-mode-string "|i")))
+ (setq eldoc-last-message nil)
+ (let ((prn-info (lambda ()
+ (unless eldoc-mode
+ (eldoc-print-current-symbol-info)))))
+ (if eldoc-post-insert-mode
+ (add-hook 'post-self-insert-hook prn-info nil t)
+ (remove-hook 'post-self-insert-hook prn-info t))))
+
+(add-hook 'eval-expression-minibuffer-setup-hook 'eldoc-post-insert-mode)
+
;;;###autoload
(defun turn-on-eldoc-mode ()
"Unequivocally turn on ElDoc mode (see command `eldoc-mode')."
@@ -188,6 +205,37 @@ (defun eldoc-schedule-timer ()
(setq eldoc-current-idle-delay eldoc-idle-delay)
(timer-set-idle-time eldoc-timer eldoc-idle-delay t))))
+(defvar eldoc-mode-line-string nil)
+(put 'eldoc-mode-line-string 'risky-local-variable t)
+
+(defun eldoc-minibuffer-message (format-string &rest args)
+ "Display messages in the mode-line when in the minibuffer.
+Otherwise work like `message'."
+ (if (minibufferp)
+ (progn
+ (with-current-buffer
+ (window-buffer
+ (or (window-in-direction 'above (minibuffer-window))
+ (minibuffer-selected-window)
+ (get-largest-window)))
+ (unless (and (listp mode-line-format)
+ (assq 'eldoc-mode-line-string mode-line-format))
+ (setq mode-line-format
+ (list "" '(eldoc-mode-line-string
+ (" " eldoc-mode-line-string " "))
+ mode-line-format))))
+ (add-hook 'minibuffer-exit-hook
+ (lambda () (setq eldoc-mode-line-string nil))
+ nil t)
+ (cond
+ ((null format-string)
+ (setq eldoc-mode-line-string nil))
+ ((stringp format-string)
+ (setq eldoc-mode-line-string
+ (apply 'format format-string args))))
+ (force-mode-line-update))
+ (apply 'message format-string args)))
+
(defun eldoc-message (&rest args)
(let ((omessage eldoc-last-message))
(setq eldoc-last-message
@@ -203,8 +251,9 @@ (defun eldoc-message (&rest args)
;; they are Legion.
;; Emacs way of preventing log messages.
(let ((message-log-max nil))
- (cond (eldoc-last-message (message "%s" eldoc-last-message))
- (omessage (message nil)))))
+ (cond (eldoc-last-message
+ (funcall eldoc-message-function "%s" eldoc-last-message))
+ (omessage (funcall eldoc-message-function nil)))))
eldoc-last-message)
;; This function goes on pre-command-hook for XEmacs or when using idle
@@ -222,25 +271,23 @@ (defun eldoc-pre-command-refresh-echo-area ()
;; Decide whether now is a good time to display a message.
(defun eldoc-display-message-p ()
(and (eldoc-display-message-no-interference-p)
- ;; If this-command is non-nil while running via an idle
- ;; timer, we're still in the middle of executing a command,
- ;; e.g. a query-replace where it would be annoying to
- ;; overwrite the echo area.
- (and (not this-command)
- (symbolp last-command)
- (intern-soft (symbol-name last-command)
- eldoc-message-commands))))
+ ;; `eldoc-post-insert-mode' use no timers.
+ (or (not eldoc-mode)
+ ;; If this-command is non-nil while running via an idle
+ ;; timer, we're still in the middle of executing a command,
+ ;; e.g. a query-replace where it would be annoying to
+ ;; overwrite the echo area.
+ (and (not this-command)
+ (symbolp last-command)
+ (intern-soft (symbol-name last-command)
+ eldoc-message-commands)))))
;; Check various conditions about the current environment that might make
;; it undesirable to print eldoc messages right this instant.
(defun eldoc-display-message-no-interference-p ()
- (and eldoc-mode
+ (and (or eldoc-mode eldoc-post-insert-mode)
(not executing-kbd-macro)
- (not (and (boundp 'edebug-active) edebug-active))
- ;; Having this mode operate in an active minibuffer/echo area causes
- ;; interference with what's going on there.
- (not cursor-in-echo-area)
- (not (eq (selected-window) (minibuffer-window)))))
+ (not (and (boundp 'edebug-active) edebug-active))))
;;;###autoload
diff --git a/lisp/simple.el b/lisp/simple.el
index 526cc64c..42253645 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -1235,6 +1235,9 @@ (defun eval-expression-print-format (value)
(format " (#o%o, #x%x, %s)" value value char-string)
(format " (#o%o, #x%x)" value value)))))
+(defvar eval-expression-minibuffer-setup-hook nil
+ "Hook run by `eval-expression' when entering the minibuffer.")
+
;; We define this, rather than making `eval' interactive,
;; for the sake of completion of names like eval-region, eval-buffer.
(defun eval-expression (eval-expression-arg
@@ -1253,9 +1256,11 @@ (defun eval-expression (eval-expression-arg
this command arranges for all errors to enter the debugger."
(interactive
(list (let ((minibuffer-completing-symbol t))
- (read-from-minibuffer "Eval: "
- nil read-expression-map t
- 'read-expression-history))
+ (minibuffer-with-setup-hook
+ (lambda () (run-hooks 'eval-expression-minibuffer-setup-hook))
+ (read-from-minibuffer "Eval: "
+ nil read-expression-map t
+ 'read-expression-history)))
current-prefix-arg))
(if (null eval-expression-debug-on-error)
--
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