Commit 640201f8 authored by Stefan Monnier's avatar Stefan Monnier
Browse files

(mouse-sel-mode): Use define-minor-mode.

Fold mouse-sel-bindings into it.
(mouse-sel-bound-events): Turn it into an alist.
(mouse-insert-selection): Delegate to mouse-yank-at-click if
mouse-sel-default-bindings asks for it.
parent 979a8abc
......@@ -93,8 +93,9 @@
;; Mouse sets selection, and pastes from kill-ring
;; mouse-1 mouse-select
;; mouse-2 mouse-yank-at-click
;; mouse-2 mouse-insert-selection
;; mouse-3 mouse-extend
;; In this mode, mouse-insert-selection just calls mouse-yank-at-click.
;; Selection/kill-ring interaction is retained
;; interprogram-cut-function = x-select-text
......@@ -149,18 +150,6 @@
"Mouse selection enhancement."
:group 'mouse)
(defcustom mouse-sel-mode nil
"Toggle Mouse Sel mode.
When Mouse Sel mode is enabled, mouse selection is enhanced in various ways.
Setting this variable directly does not take effect;
use either \\[customize] or the function `mouse-sel-mode'."
:set (lambda (symbol value)
(mouse-sel-mode (or value 0)))
:initialize 'custom-initialize-default
:type 'boolean
:group 'mouse-sel
:require 'mouse-sel)
(defcustom mouse-sel-leave-point-near-mouse t
"*Leave point near last mouse position.
If non-nil, \\[mouse-select] and \\[mouse-extend] will leave point at the end
......@@ -181,10 +170,38 @@ If nil, point will always be placed at the beginning of the region."
(other :tag "default bindings" t))
:group 'mouse-sel)
;;=== Key bindings ========================================================
(defconst mouse-sel-bound-events
'(;; Primary selection bindings.
;; Bind keys to `ignore' instead of unsetting them because modes may
;; bind `down-mouse-1', for instance, without binding `mouse-1'.
;; If we unset `mouse-1', this leads to a bitch_at_user when the
;; mouse goes up because no matching binding is found for that.
([mouse-1] . ignore)
([drag-mouse-1] . ignore)
([mouse-3] . ignore)
([down-mouse-1] . mouse-select)
([down-mouse-3] . mouse-extend)
([mouse-2] . mouse-insert-selection)
;; Secondary selection bindings.
([M-mouse-1] . ignore)
([M-drag-mouse-1] . ignore)
([M-mouse-3] . ignore)
([M-down-mouse-1] . mouse-select-secondary)
([M-mouse-2] . mouse-insert-secondary)
([M-down-mouse-3] . mouse-extend-secondary))
"An alist of events that `mouse-sel-mode' binds.")
;;=== User Command ========================================================
(defvar mouse-sel-original-bindings nil)
(defvar mouse-sel-original-interprogram-cut-function nil)
(defvar mouse-sel-original-interprogram-cut-function nil)
(defun mouse-sel-mode (&optional arg)
(define-minor-mode mouse-sel-mode
"Toggle Mouse Sel mode.
With prefix ARG, turn Mouse Sel mode on if and only if ARG is positive.
Returns the new status of Mouse Sel mode (non-nil means on).
......@@ -203,10 +220,10 @@ Triple-clicking selects lines.
Quad-clicking selects paragraphs.
- Selecting sets the region & X primary selection, but does NOT affect
the kill-ring, nor do the kill-ring function change the X selection.
the `kill-ring', nor do the kill-ring functions change the X selection.
Because the mouse handlers set the primary selection directly,
mouse-sel sets the variables interprogram-cut-function and
interprogram-paste-function to nil.
mouse-sel sets the variables `interprogram-cut-function' and
`interprogram-paste-function' to nil.
- Clicking mouse-2 inserts the contents of the primary selection at
the mouse position (or point, if `mouse-yank-at-point' is non-nil).
......@@ -219,93 +236,35 @@ to the kill ring. Pressing mouse-1 or mouse-3 kills it.
- M-mouse-1, M-mouse-2 & M-mouse-3 work similarly to mouse-1, mouse-2
& mouse-3, but operate on the X secondary selection rather than the
primary selection and region."
(interactive "P")
(let ((on-p (if arg
(> (prefix-numeric-value arg) 0)
(not mouse-sel-mode))))
(if on-p
:global t
(if mouse-sel-mode
(add-hook 'x-lost-selection-hooks 'mouse-sel-lost-selection-hook)
(remove-hook 'x-lost-selection-hooks 'mouse-sel-lost-selection-hook))
(mouse-sel-bindings on-p)
(setq mouse-sel-mode on-p)))
(when mouse-sel-default-bindings
;; Save original bindings and replace them with new ones.
(setq mouse-sel-original-bindings
(mapcar (lambda (binding)
(let ((event (car binding)))
(prog1 (cons event (lookup-key global-map event))
(global-set-key event (cdr binding)))))
;; Update interprogram functions.
(setq mouse-sel-original-interprogram-cut-function
(unless (eq mouse-sel-default-bindings 'interprogram-cut-paste)
(setq interprogram-cut-function nil
interprogram-paste-function nil))))
;;=== Key bindings ========================================================
(defconst mouse-sel-bound-events
'([down-mouse-1] [mouse-1] [drag-mouse-1]
[down-mouse-3] [mouse-3]
[M-down-mouse-1] [M-mouse-1] [M-drag-mouse-1]
[M-down-mouse-3] [M-mouse-3])
"A list of events that mouse-sel binds.")
(defun mouse-sel-bindings (bind)
;; Default mouse-sel bindings
((and bind mouse-sel-default-bindings)
;; Save original bindings
(setq mouse-sel-original-bindings nil)
(mapc (function
(lambda (event)
(setq mouse-sel-original-bindings
(cons (cons event (lookup-key global-map event))
(setq mouse-sel-original-interprogram-cut-function
;; Primary selection bindings.
;; Bind keys to `ignore' instead of unsetting them because
;; modes may bind `down-mouse-1', for instance, without
;; binding other `up-mouse-1' or `mouse-1'. If we unset
;; `mouse-1', this leads to a bitch_at_user when the mouse
;; goes up because no matching binding is found for that.
(global-set-key [mouse-1] 'ignore)
(global-set-key [drag-mouse-1] 'ignore)
(global-set-key [mouse-3] 'ignore)
(global-set-key [down-mouse-1] 'mouse-select)
(unless (eq mouse-sel-default-bindings 'interprogram-cut-paste)
(global-set-key [mouse-2] 'mouse-insert-selection)
(setq interprogram-cut-function nil
interprogram-paste-function nil))
(global-set-key [down-mouse-3] 'mouse-extend)
;; Secondary selection bindings.
(global-set-key [M-mouse-1] 'ignore)
(global-set-key [M-drag-mouse-1] 'ignore)
(global-set-key [M-mouse-3] 'ignore)
(global-set-key [M-down-mouse-1] 'mouse-select-secondary)
(global-set-key [M-mouse-2] 'mouse-insert-secondary)
(global-set-key [M-down-mouse-3] 'mouse-extend-secondary))
((not bind)
;; Restore original bindings
(mapc (function
(lambda (binding)
(if (cdr binding)
(global-set-key (car binding) (cdr binding))
(global-unset-key (car binding)))))
(setq interprogram-cut-function
(remove-hook 'x-lost-selection-hooks 'mouse-sel-lost-selection-hook)
(dolist (binding mouse-sel-original-bindings)
(global-set-key (car binding) (cdr binding)))
(setq interprogram-cut-function
;;=== Command Variable ====================================================
;; This has to come after the function `mouse-sel-mode' and its callee.
;; An alternative is to put the option `mouse-sel-mode' here and remove its
;; `:initialize' keyword.
(when mouse-sel-mode
(mouse-sel-mode t))
;;=== Internal Variables/Constants ========================================
......@@ -711,11 +670,13 @@ See documentation for mouse-select-internal for more details."
;;=== Paste ===============================================================
(defun mouse-insert-selection (event)
(defun mouse-insert-selection (event arg)
"Insert the contents of the PRIMARY selection at mouse click.
If `mouse-yank-at-point' is non-nil, insert at point instead."
(interactive "e")
(mouse-insert-selection-internal 'PRIMARY event))
(interactive "e\nP")
(if (eq mouse-sel-default-bindings 'interprogram-cut-paste)
(mouse-yank-at-click event arg)
(mouse-insert-selection-internal 'PRIMARY event)))
(defun mouse-insert-secondary (event)
"Insert the contents of the SECONDARY selection at mouse click.
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