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[Emacs-diffs] master 9b3ce62: New defcustom 'tooltip-resize-echo-area'
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] master 9b3ce62: New defcustom 'tooltip-resize-echo-area' |
Date: |
Sat, 7 Oct 2017 08:05:57 -0400 (EDT) |
branch: master
commit 9b3ce6252115980802adaa562af575bcd73a2c55
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>
New defcustom 'tooltip-resize-echo-area'
* lisp/tooltip.el (tooltip-resize-echo-area): New defcustom.
(tooltip-show-help-non-mode): Use it to avoid truncating the
tooltip text in the echo area. (Bug#28724)
* etc/NEWS: Mention 'tooltip-resize-echo-area'.
---
etc/NEWS | 6 ++++++
lisp/tooltip.el | 15 ++++++++++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/etc/NEWS b/etc/NEWS
index 1566180..f961928 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -31,6 +31,12 @@ When you add a new item, use the appropriate mark if you are
sure it applies,
* Changes in Emacs 27.1
+---
+** The new option 'tooltip-resize-echo-area' avoids truncating tooltip text
+on GUI frames when tooltips are displayed in the echo area. Instead,
+it resizes the echo area as needed to accommodate the full tool-tip
+text.
+
+++
** New function 'logcount' calculates an integer's Hamming weight.
diff --git a/lisp/tooltip.el b/lisp/tooltip.el
index 18ddd25..44b6938 100644
--- a/lisp/tooltip.el
+++ b/lisp/tooltip.el
@@ -155,6 +155,18 @@ This variable is obsolete; instead of setting it to t,
disable
(make-obsolete-variable 'tooltip-use-echo-area
"disable Tooltip mode instead" "24.1" 'set)
+(defcustom tooltip-resize-echo-area nil
+ "If non-nil, using the echo area for tooltips will resize the echo area.
+By default, when the echo area is used for displaying tooltips,
+the tooltip text is truncated if it exceeds a single screen line.
+When this variable is non-nil, the text is not truncated; instead,
+the echo area is resized as needed to accommodate the full text
+of the tooltip.
+This variable has effect only on GUI frames."
+ :type 'boolean
+ :group 'tooltip
+ :version "27.1")
+
;;; Variables that are not customizable.
@@ -347,7 +359,8 @@ It is also called if Tooltip mode is on, for text-only
displays."
(current-message))))
(setq tooltip-previous-message (current-message)))
(setq tooltip-help-message help)
- (let ((message-truncate-lines t)
+ (let ((message-truncate-lines
+ (or (not (display-graphic-p)) (not tooltip-resize-echo-area)))
(message-log-max nil))
(message "%s" help)))
((stringp tooltip-previous-message)
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