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Introduce new defcustom for terminal CUA rectangle commands

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This allows a user to set a non-meta modifier for their terminal
should his/her terminal support it. See bug#35058 for background on
this change.

* lisp/emulation/cua-base.el (cua-rectangle-terminal-modifier-key):
New defcustom.

* lisp/emulation/cua-base.el (cua--shift-control-x-prefix): Use new
defcustom.
This commit is contained in:
Alexander Gramiak 2019-04-03 14:06:45 -06:00
parent cffc04c48d
commit b68405405e
2 changed files with 21 additions and 5 deletions
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7
etc/NEWS
View file

@ -1252,6 +1252,13 @@ near the current column in Tabulated Lists (see variables
+++
*** 'text-mode-variant' is now obsolete, use 'derived-mode-p' instead.
** CUA mode
---
*** New defcustom 'cua-rectangle-terminal-modifier-key'.
This defcustom allows for the customization of the modifier key used
in a terminal frame.
* New Modes and Packages in Emacs 27.1

19
lisp/emulation/cua-base.el
View file

@ -427,7 +427,7 @@ and after the region marked by the rectangle to search."
(defcustom cua-rectangle-modifier-key 'meta
"Modifier key used for rectangle commands bindings.
On non-window systems, always use the meta modifier.
On non-window systems, use `cua-rectangle-terminal-modifier-key'.
Must be set prior to enabling CUA."
:type '(choice (const :tag "Meta key" meta)
(const :tag "Alt key" alt)
@ -435,6 +435,16 @@ Must be set prior to enabling CUA."
(const :tag "Super key" super))
:group 'cua)
(defcustom cua-rectangle-terminal-modifier-key 'meta
"Modifier key used for rectangle commands bindings in terminals.
Must be set prior to enabling CUA."
:type '(choice (const :tag "Meta key" meta)
(const :tag "Alt key" alt)
(const :tag "Hyper key" hyper)
(const :tag "Super key" super))
:group 'cua
:version "27.1")
(defcustom cua-enable-rectangle-auto-help t
"If non-nil, automatically show help for region, rectangle and global mark."
:type 'boolean
@ -1237,10 +1247,9 @@ If ARG is the atom `-', scroll upward by nearly full screen."
(defun cua--init-keymaps ()
;; Cache actual rectangle modifier key.
(setq cua--rectangle-modifier-key
(if (and cua-rectangle-modifier-key
(memq window-system '(x)))
cua-rectangle-modifier-key
'meta))
(if (eq (framep (selected-frame)) t)
cua-rectangle-terminal-modifier-key
cua-rectangle-modifier-key))
;; C-return always toggles rectangle mark
(define-key cua-global-keymap cua-rectangle-mark-key 'cua-set-rectangle-mark)
(unless (eq cua--rectangle-modifier-key 'meta)