;;; wid-edit.el --- Functions for creating and using widgets -*-byte-compile-dynamic: t;-*-
;;
-;; Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1996-1997, 1999-2011 Free Software Foundation, Inc.
;;
;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; Maintainer: FSF
;; Keywords: extensions
+;; Package: emacs
;; This file is part of GNU Emacs.
;;; Code:
-(defvar widget)
-
;;; Compatibility.
(defun widget-event-point (event)
(defvar widget-field-use-before-change t
"Non-nil means use `before-change-functions' to track editable fields.
-This enables the use of undo, but doesn't work on Emacs 19.34 and earlier.
-Using before hooks also means that the :notify function can't know the
-new value.")
+This enables the use of undo. Using before hooks also means that
+the :notify function can't know the new value.")
(defun widget-specify-field (widget from to)
"Specify editable button for WIDGET between FROM and TO."
specs)
(dolist (elt widget-image-conversion)
(dolist (ext (cdr elt))
- (push (list :type (car elt) :file (concat image ext)) specs)))
+ (push (list :type (car elt) :file (concat image ext))
+ specs)))
(find-image (nreverse specs))))
(t
;; Oh well.
(defvar widget-use-overlay-change t
"If non-nil, use overlay change functions to tab around in the buffer.
-This is much faster, but doesn't work reliably on Emacs 19.34.")
+This is much faster.")
(defun widget-move (arg)
"Move point to the ARG next field or button.
(if field
(narrow-to-region (line-beginning-position) (line-end-position)))))
+;; This used to say:
+;; "When not inside a field, move to the previous button or field."
+;; but AFAICS, it has always just thrown an error.
(defun widget-complete ()
"Complete content of editable field from point.
-When not inside a field, move to the previous button or field."
+When not inside a field, signal an error."
(interactive)
(let ((field (widget-field-find (point))))
- (when field
- (widget-apply field :complete))
- (error "Not in an editable field")))
+ (if field
+ (widget-apply field :complete)
+ (error "Not in an editable field"))))
;;; Setting up the buffer.
(goto-char end)
(while (and (eq (preceding-char) ?\s)
(> (point) begin))
- (delete-backward-char 1)))))))
+ (delete-char -1)))))))
(widget-specify-secret field))
(widget-apply field :notify field))))
:notify 'widget-default-notify
:prompt-value 'widget-default-prompt-value)
+(defvar widget--completing-widget)
+
(defun widget-default-complete (widget)
"Call the value of the :complete-function property of WIDGET.
-If that does not exist, call the value of `widget-complete-field'."
- (call-interactively (or (widget-get widget :complete-function)
- widget-complete-field)))
+If that does not exist, call the value of `widget-complete-field'.
+During this call, `widget--completing-widget' is bound to WIDGET."
+ (let ((widget--completing-widget widget))
+ (call-interactively (or (widget-get widget :complete-function)
+ widget-complete-field))))
(defun widget-default-create (widget)
"Create WIDGET at point in the current buffer."
;; Parse escapes in format.
(while (re-search-forward "%\\(.\\)" nil t)
(let ((escape (char-after (match-beginning 1))))
- (delete-backward-char 2)
+ (delete-char -2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?\[)
(setq doc-begin (point))
(insert doc)
(while (eq (preceding-char) ?\n)
- (delete-backward-char 1))
+ (delete-char -1))
(insert ?\n)
(setq doc-end (point)))))
((eq escape ?h)
(defun widget-toggle-value-create (widget)
"Insert text representing the `on' and `off' states."
- (if (widget-value widget)
- (let ((image (widget-get widget :on-glyph)))
- (and (display-graphic-p)
- (listp image)
- (not (eq (car image) 'image))
- (widget-put widget :on-glyph (setq image (eval image))))
- (widget-image-insert widget
- (widget-get widget :on)
- image))
- (let ((image (widget-get widget :off-glyph)))
- (and (display-graphic-p)
- (listp image)
- (not (eq (car image) 'image))
- (widget-put widget :off-glyph (setq image (eval image))))
- (widget-image-insert widget (widget-get widget :off) image))))
+ (let* ((val (widget-value widget))
+ (text (widget-get widget (if val :on :off)))
+ (img (widget-image-find
+ (widget-get widget (if val :on-glyph :off-glyph)))))
+ (widget-image-insert widget (or text "")
+ (if img
+ (append img '(:ascent center))))))
(defun widget-toggle-action (widget &optional event)
;; Toggle value.
;; We could probably do the same job as the images using single
;; space characters in a boxed face with a stretch specification to
;; make them square.
- :on-glyph '(create-image "\300\300\141\143\067\076\034\030"
- 'xbm t :width 8 :height 8
- :background "grey75" ; like default mode line
- :foreground "black"
- :relief -2
- :ascent 'center)
+ :on-glyph "checked"
:off "[ ]"
- :off-glyph '(create-image (make-string 8 0)
- 'xbm t :width 8 :height 8
- :background "grey75"
- :foreground "black"
- :relief -2
- :ascent 'center)
+ :off-glyph "unchecked"
:help-echo "Toggle this item."
:action 'widget-checkbox-action)
(defun widget-checklist-value-create (widget)
;; Insert all values
- (let ((alist (widget-checklist-match-find widget (widget-get widget :value)))
- (args (widget-get widget :args)))
- (while args
- (widget-checklist-add-item widget (car args) (assq (car args) alist))
- (setq args (cdr args)))
+ (let ((alist (widget-checklist-match-find widget))
+ (args (widget-get widget :args)))
+ (dolist (item args)
+ (widget-checklist-add-item widget item (assq item alist)))
(widget-put widget :children (nreverse (widget-get widget :children)))))
(defun widget-checklist-add-item (widget type chosen)
;; Parse % escapes in format.
(while (re-search-forward "%\\([bv%]\\)" nil t)
(let ((escape (char-after (match-beginning 1))))
- (delete-backward-char 2)
+ (delete-char -2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?b)
values nil)))))
(cons found rest)))
-(defun widget-checklist-match-find (widget vals)
+(defun widget-checklist-match-find (widget &optional vals)
"Find the vals which match a type in the checklist.
Return an alist of (TYPE MATCH)."
+ (or vals (setq vals (widget-get widget :value)))
(let ((greedy (widget-get widget :greedy))
(args (copy-sequence (widget-get widget :args)))
found)
;; Parse % escapes in format.
(while (re-search-forward "%\\([bv%]\\)" nil t)
(let ((escape (char-after (match-beginning 1))))
- (delete-backward-char 2)
+ (delete-char -2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?b)
;; Parse % escapes in format.
(while (re-search-forward "%\\(.\\)" nil t)
(let ((escape (char-after (match-beginning 1))))
- (delete-backward-char 2)
+ (delete-char -2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?i)
argument answer found)
(while args
(setq argument (car args)
- args (cdr args)
- answer (widget-match-inline argument vals))
- (if answer
- (setq vals (cdr answer)
- found (append found (car answer)))
+ args (cdr args))
+ (if (setq answer (widget-match-inline argument vals))
+ (setq found (append found (car answer))
+ vals (cdr answer))
(setq vals nil
args nil)))
(if answer
"An indicator and manipulator for hidden items.
The following properties have special meanings for this widget:
-:on-image Image filename or spec to display when the item is visible.
+:on-glyph Image filename or spec to display when the item is visible.
:on Text shown if the \"on\" image is nil or cannot be displayed.
-:off-image Image filename or spec to display when the item is hidden.
+:off-glyph Image filename or spec to display when the item is hidden.
:off Text shown if the \"off\" image is nil cannot be displayed."
:format "%[%v%]"
:button-prefix ""
:button-suffix ""
- :on-image "down"
+ :on-glyph "down"
:on "Hide"
- :off-image "right"
+ :off-glyph "right"
:off "Show"
:value-create 'widget-visibility-value-create
:action 'widget-toggle-action
:match (lambda (widget value) t))
-(defun widget-visibility-value-create (widget)
- ;; Insert text representing the `on' and `off' states.
- (let* ((val (widget-value widget))
- (text (widget-get widget (if val :on :off)))
- (img (widget-image-find
- (widget-get widget (if val :on-image :off-image)))))
- (widget-image-insert widget
- (if text
- (concat widget-push-button-prefix text
- widget-push-button-suffix)
- "")
- (if img
- (append img '(:ascent center))))))
+(defalias 'widget-visibility-value-create 'widget-toggle-value-create)
;;; The `documentation-link' Widget.
;;
:complete-function 'ispell-complete-word
:prompt-history 'widget-string-prompt-value-history)
-(defvar widget)
-
(defun widget-string-complete ()
"Complete contents of string field.
Completions are taken from the :completion-alist property of the
widget. If that isn't a list, it's evalled and expected to yield a list."
(interactive)
- (let* ((completion-ignore-case (widget-get widget :completion-ignore-case))
+ (let* ((widget widget--completing-widget)
+ (completion-ignore-case (widget-get widget :completion-ignore-case))
(alist (widget-get widget :completion-alist))
(_ (unless (listp alist)
(setq alist (eval alist)))))
(defun widget-file-complete ()
"Perform completion on file name preceding point."
(interactive)
- (completion-in-region (widget-field-start widget)
- (max (point) (widget-field-text-end widget))
- 'completion-file-name-table))
+ (let ((widget widget--completing-widget))
+ (completion-in-region (widget-field-start widget)
+ (max (point) (widget-field-text-end widget))
+ 'completion-file-name-table)))
(defun widget-file-prompt-value (widget prompt value unbound)
;; Read file from minibuffer.
(widget-insert " ")
(widget-create-child-and-convert
widget 'push-button
- :tag "Choose" :action 'widget-color--choose-action)
+ :tag " Choose " :action 'widget-color--choose-action)
(widget-insert " "))
(defun widget-color--choose-action (widget &optional event)
(provide 'wid-edit)
-;; arch-tag: a076e75e-18a1-4b46-8be5-3f317bcbc707
;;; wid-edit.el ends here
HCoop / bpt / emacs.git / blobdiff