(widget-choose, widget-choice-mouse-down-action):

Don't test x-popup-menu.
(function) <complete-function>: Complete only fbound symbols.
<validate, value>: New.
(variable) <complete-function>: Complete only bound symbols.
(coding-system): Add :base-only, :complete-function, :validate,
:value, :prompt-match.
(widget-coding-system-prompt-value): Use read-coding-system and
act on :base-only.
(editable-field): Add :help-echo.
(widget-push-button-gui, widget-push-button-cache)
(widget-gui-action, widget-editable-list-gui): COmment out, along
with uses.
(widget-at): Make arg optional.
(widget-echo-help): Adjust for current help-echo calling sequence.
(widget-specify-field, widget-specify-button)
(widget-specify-insert, widget-get-sibling, widget-image-find)
(widget-convert, widget-insert, widget-leave-text)
(widget-beginning-of-line, widget-end-of-line, widget-kill-line)
(widget-setup, widget-field-find, widget-before-change)
(widget-after-change, widget-default-complete)
(widget-default-create, widget-default-delete)
(widget-push-button-value-create, editable-field)
(widget-field-prompt-value, widget-field-validate)
(widget-choice-value-create, widget-choice-action)
(widget-choice-validate, widget-checklist-add-item)
(widget-radio-add-item, widget-radio-chosen)
(widget-radio-value-inline, widget-editable-list-value-create)
(widget-editable-list-entry-create)
(widget-documentation-link-add)
(widget-documentation-string-value-create)
(widget-regexp-validate, widget-file-complete)
(widget-sexp-validate, widget-plist-convert-widget)
(widget-plist-convert-widget, widget-alist-convert-widget)
(widget-alist-convert-widget, widget-color-complete): Simplify,
particularly to avoid bindings which aren't optimized out.
This commit is contained in:
Dave Love 2000-08-20 18:34:24 +00:00
parent 35244a0ee5
commit 7fdbdbeadb

View file

@ -23,6 +23,34 @@
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Wishlist items (from widget.texi):
;; * The `menu-choice' tag should be prettier, something like the
;; abbreviated menus in Open Look.
;; * Finish `:tab-order'.
;; * Make indentation work with glyphs and proportional fonts.
;; * Add commands to show overview of object and class hierarchies to
;; the browser.
;; * Find a way to disable mouse highlight for inactive widgets.
;; * Find a way to make glyphs look inactive.
;; * Add `key-binding' widget.
;; * Add `widget' widget for editing widget specifications.
;; * Find clean way to implement variable length list. See
;; `TeX-printer-list' for an explanation.
;; * `C-h' in `widget-prompt-value' should give type specific help.
;; * A mailto widget. [This should work OK as a url-link if with
;; browse-url-browser-function' set up appropriately.]
;;; Commentary:
;;
;; See `widget.el'.
@ -176,8 +204,8 @@ mouse event, and the number of elements in items is less than
`widget-menu-max-size', a popup menu will be used, otherwise the
minibuffer."
(cond ((and (< (length items) widget-menu-max-size)
event (fboundp 'x-popup-menu) (display-mouse-p))
;; We are in Emacs-19, pressed by the mouse
event (display-mouse-p))
;; Mouse click.
(x-popup-menu event
(list title (cons "" items))))
((or widget-menu-minibuffer-flag
@ -193,11 +221,9 @@ minibuffer."
(t
;; Construct a menu of the choices
;; and then use it for prompting for a single character.
(let* ((overriding-terminal-local-map
(make-sparse-keymap))
map choice (next-digit ?0)
some-choice-enabled
value)
(let* ((overriding-terminal-local-map (make-sparse-keymap))
(next-digit ?0)
map choice some-choice-enabled value)
;; Define SPC as a prefix char to get to this menu.
(define-key overriding-terminal-local-map " "
(setq map (make-sparse-keymap title)))
@ -292,19 +318,16 @@ new value.")
(widget-field-add-space
(insert-and-inherit " ")))
(setq to (point)))
(let ((map (widget-get widget :keymap))
(face (or (widget-get widget :value-face) 'widget-field-face))
(help-echo (widget-get widget :help-echo))
(overlay (make-overlay from to nil
(let ((overlay (make-overlay from to nil
nil (or (not widget-field-add-space)
(widget-get widget :size)))))
(widget-put widget :field-overlay overlay)
;;(overlay-put overlay 'detachable nil)
(overlay-put overlay 'field widget)
(overlay-put overlay 'keymap map)
(overlay-put overlay 'face face)
;;(overlay-put overlay 'balloon-help help-echo)
(overlay-put overlay 'help-echo help-echo))
(overlay-put overlay 'keymap (widget-get widget :keymap))
(overlay-put overlay 'face (or (widget-get widget :value-face)
'widget-field-face))
(overlay-put overlay 'help-echo (widget-get widget :help-echo)))
(widget-specify-secret widget))
(defun widget-specify-secret (field)
@ -327,23 +350,20 @@ new value.")
(defun widget-specify-button (widget from to)
"Specify button for WIDGET between FROM and TO."
(let ((face (widget-apply widget :button-face-get))
(help-echo (widget-get widget :help-echo))
(overlay (make-overlay from to nil t nil)))
(let ((overlay (make-overlay from to nil t nil)))
(widget-put widget :button-overlay overlay)
(overlay-put overlay 'button widget)
(overlay-put overlay 'keymap (widget-get widget :keymap))
;; We want to avoid the face with image buttons.
(unless (widget-get widget :suppress-face)
(overlay-put overlay 'face face)
(overlay-put overlay 'face (widget-apply widget :button-face-get))
(overlay-put overlay 'mouse-face widget-mouse-face))
;;(overlay-put overlay 'balloon-help help-echo)
(overlay-put overlay 'help-echo help-echo)))
(overlay-put overlay 'help-echo (widget-get widget :help-echo))))
(defun widget-specify-sample (widget from to)
"Specify sample for WIDGET between FROM and TO."
(let ((face (widget-apply widget :sample-face-get))
(overlay (make-overlay from to nil t nil)))
(overlay-put overlay 'face face)
(let ((overlay (make-overlay from to nil t nil)))
(overlay-put overlay 'face (widget-apply widget :sample-face-get))
(widget-put widget :sample-overlay overlay)))
(defun widget-specify-doc (widget from to)
@ -357,9 +377,8 @@ new value.")
"Execute FORM without inheriting any text properties."
`(save-restriction
(let ((inhibit-read-only t)
result
before-change-functions
after-change-functions)
(inhibit-modification-hooks t)
result)
(insert "<>")
(narrow-to-region (- (point) 2) (point))
(goto-char (1+ (point-min)))
@ -479,8 +498,7 @@ The current value is assumed to be VALUE, unless UNBOUND is non-nil."
(defun widget-get-sibling (widget)
"Get the item WIDGET is assumed to toggle.
This is only meaningful for radio buttons or checkboxes in a list."
(let* ((parent (widget-get widget :parent))
(children (widget-get parent :children))
(let* ((children (widget-get (widget-get widget :parent) :children))
child)
(catch 'child
(while children
@ -551,7 +569,6 @@ extension (xpm, xbm, gif, jpg, or png) located in
((stringp image)
;; A string. Look it up in relevant directories.
(let* ((load-path (cons widget-image-directory load-path))
(formats widget-image-conversion)
specs)
(dolist (elt widget-image-conversion)
(dolist (ext (cdr elt))
@ -659,17 +676,15 @@ The optional ARGS are additional keyword arguments."
(keys args))
;; First set the :args keyword.
(while (cdr current) ;Look in the type.
(let ((next (car (cdr current))))
(if (keywordp next)
(setq current (cdr (cdr current)))
(setcdr current (list :args (cdr current)))
(setq current nil))))
(if (keywordp (car (cdr current)))
(setq current (cdr (cdr current)))
(setcdr current (list :args (cdr current)))
(setq current nil)))
(while args ;Look in the args.
(let ((next (nth 0 args)))
(if (keywordp next)
(setq args (nthcdr 2 args))
(widget-put widget :args args)
(setq args nil))))
(if (keywordp (nth 0 args))
(setq args (nthcdr 2 args))
(widget-put widget :args args)
(setq args nil)))
;; Then Convert the widget.
(setq type widget)
(while type
@ -687,18 +702,17 @@ The optional ARGS are additional keyword arguments."
(setq keys nil))))
;; Convert the :value to internal format.
(if (widget-member widget :value)
(let ((value (widget-get widget :value)))
(widget-put widget
:value (widget-apply widget :value-to-internal value))))
(widget-put widget
:value (widget-apply widget
:value-to-internal
(widget-get widget :value))))
;; Return the newly create widget.
widget))
(defun widget-insert (&rest args)
"Call `insert' with ARGS and make the text read only."
"Call `insert' with ARGS even if surrounding text is read only."
(let ((inhibit-read-only t)
before-change-functions
after-change-functions
(from (point)))
(inhibit-modification-hooks t))
(apply 'insert args)))
(defun widget-convert-text (type from to
@ -731,15 +745,12 @@ button end points."
(defun widget-leave-text (widget)
"Remove markers and overlays from WIDGET and its children."
(let ((from (widget-get widget :from))
(to (widget-get widget :to))
(button (widget-get widget :button-overlay))
(let ((button (widget-get widget :button-overlay))
(sample (widget-get widget :sample-overlay))
(doc (widget-get widget :doc-overlay))
(field (widget-get widget :field-overlay))
(children (widget-get widget :children)))
(set-marker from nil)
(set-marker to nil)
(field (widget-get widget :field-overlay)))
(set-marker (widget-get widget :from) nil)
(set-marker (widget-get widget :to) nil)
(when button
(delete-overlay button))
(when sample
@ -748,7 +759,7 @@ button end points."
(delete-overlay doc))
(when field
(delete-overlay field))
(mapc 'widget-leave-text children)))
(mapc 'widget-leave-text (widget-get widget :children))))
;;; Keymap and Commands.
@ -965,29 +976,26 @@ With optional ARG, move across that many fields."
"Go to beginning of field or beginning of line, whichever is first."
(interactive)
(let* ((field (widget-field-find (point)))
(start (and field (widget-field-start field)))
(bol (line-beginning-position)))
(start (and field (widget-field-start field))))
(goto-char (if start
(max start bol)
bol))))
(max start (line-beginning-position))
(line-beginning-position)))))
(defun widget-end-of-line ()
"Go to end of field or end of line, whichever is first."
(interactive)
(let* ((field (widget-field-find (point)))
(end (and field (widget-field-end field)))
(eol (line-end-position)))
(end (and field (widget-field-end field))))
(goto-char (if end
(min end eol)
eol))))
(min end (line-end-position))
(line-end-position)))))
(defun widget-kill-line ()
"Kill to end of field or end of line, whichever is first."
(interactive)
(let* ((field (widget-field-find (point)))
(newline (save-excursion (forward-line 1) (point)))
(end (and field (widget-field-end field))))
(if (and field (> newline end))
(if (and field (> (line-beginning-position 2) end))
(kill-region (point) end)
(call-interactively 'kill-line))))
@ -1019,8 +1027,7 @@ When not inside a field, move to the previous button or field."
(defun widget-setup ()
"Setup current buffer so editing string widgets works."
(let ((inhibit-read-only t)
(after-change-functions nil)
before-change-functions
(inhibit-modification-hooks t)
field)
(while widget-field-new
(setq field (car widget-field-new)
@ -1070,12 +1077,11 @@ Unlike (get-char-property POS 'field) this, works with empty fields too."
(while fields
(setq field (car fields)
fields (cdr fields))
(let ((start (widget-field-start field))
(end (widget-field-end field)))
(when (and (<= start pos) (<= pos end))
(when found
(debug "Overlapping fields"))
(setq found field))))
(when (and (<= (widget-field-start field) pos)
(<= pos (widget-field-end field)))
(when found
(error "Overlapping fields"))
(setq found field)))
found))
(defun widget-before-change (from to)
@ -1093,9 +1099,7 @@ Unlike (get-char-property POS 'field) this, works with empty fields too."
(signal 'text-read-only
'("Attempt to change text outside editable field")))
(widget-field-use-before-change
(condition-case nil
(widget-apply from-field :notify from-field)
(error (debug "Before Change"))))))))
(widget-apply from-field :notify from-field))))))
(defun widget-add-change ()
(make-local-hook 'post-command-hook)
@ -1107,37 +1111,35 @@ Unlike (get-char-property POS 'field) this, works with empty fields too."
(defun widget-after-change (from to old)
"Adjust field size and text properties."
(condition-case nil
(let ((field (widget-field-find from))
(other (widget-field-find to)))
(when field
(unless (eq field other)
(debug "Change in different fields"))
(let ((size (widget-get field :size)))
(when size
(let ((begin (widget-field-start field))
(end (widget-field-end field)))
(cond ((< (- end begin) size)
;; Field too small.
(save-excursion
(goto-char end)
(insert-char ?\ (- (+ begin size) end))))
((> (- end begin) size)
;; Field too large and
(if (or (< (point) (+ begin size))
(> (point) end))
;; Point is outside extra space.
(setq begin (+ begin size))
;; Point is within the extra space.
(setq begin (point)))
(save-excursion
(goto-char end)
(while (and (eq (preceding-char) ?\ )
(> (point) begin))
(delete-backward-char 1)))))))
(widget-specify-secret field))
(widget-apply field :notify field)))
(error (debug "After Change"))))
(let ((field (widget-field-find from))
(other (widget-field-find to)))
(when field
(unless (eq field other)
(error "Change in different fields"))
(let ((size (widget-get field :size)))
(when size
(let ((begin (widget-field-start field))
(end (widget-field-end field)))
(cond ((< (- end begin) size)
;; Field too small.
(save-excursion
(goto-char end)
(insert-char ?\ (- (+ begin size) end))))
((> (- end begin) size)
;; Field too large and
(if (or (< (point) (+ begin size))
(> (point) end))
;; Point is outside extra space.
(setq begin (+ begin size))
;; Point is within the extra space.
(setq begin (point)))
(save-excursion
(goto-char end)
(while (and (eq (preceding-char) ?\ )
(> (point) begin))
(delete-backward-char 1)))))))
(widget-specify-secret field))
(widget-apply field :notify field))))
;;; Widget Functions
;;
@ -1218,8 +1220,8 @@ Optional EVENT is the event that triggered the action."
(defun widget-default-complete (widget)
"Call the value of the :complete-function property of WIDGET.
If that does not exists, call the value of `widget-complete-field'."
(let ((fun (widget-get widget :complete-function)))
(call-interactively (or fun widget-complete-field))))
(call-interactively (or (widget-get widget :complete-function)
widget-complete-field)))
(defun widget-default-create (widget)
"Create WIDGET at point in the current buffer."
@ -1233,8 +1235,8 @@ If that does not exists, call the value of `widget-complete-field'."
(goto-char from)
;; Parse escapes in format.
(while (re-search-forward "%\\(.\\)" nil t)
(let ((escape (aref (match-string 1) 0)))
(replace-match "" t t)
(let ((escape (char-after (match-beginning 1))))
(delete-backward-char 2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?\[)
@ -1286,8 +1288,8 @@ If that does not exists, call the value of `widget-complete-field'."
(when value-pos
(goto-char value-pos)
(widget-apply widget :value-create)))
(let ((from (copy-marker (point-min)))
(to (copy-marker (point-max))))
(let ((from (point-min-marker))
(to (point-max-marker)))
(set-marker-insertion-type from t)
(set-marker-insertion-type to nil)
(widget-put widget :from from)
@ -1354,8 +1356,7 @@ If that does not exists, call the value of `widget-complete-field'."
(button-overlay (widget-get widget :button-overlay))
(sample-overlay (widget-get widget :sample-overlay))
(doc-overlay (widget-get widget :doc-overlay))
before-change-functions
after-change-functions
(inhibit-modification-hooks t)
(inhibit-read-only t))
(widget-apply widget :value-delete)
(when inactive-overlay
@ -1438,10 +1439,10 @@ If that does not exists, call the value of `widget-complete-field'."
(defun widget-default-prompt-value (widget prompt value unbound)
"Read an arbitrary value. Stolen from `set-variable'."
;; (let ((initial (if unbound
nil
;; nil
;; It would be nice if we could do a `(cons val 1)' here.
;; (prin1-to-string (custom-quote value))))))
(eval-minibuffer prompt ))
(eval-minibuffer prompt))
;;; The `item' Widget.
@ -1490,13 +1491,13 @@ If END is omitted, it defaults to the length of LIST."
;;; The `push-button' Widget.
(defcustom widget-push-button-gui t
"If non nil, use GUI push buttons when available."
:group 'widgets
:type 'boolean)
;; (defcustom widget-push-button-gui t
;; "If non nil, use GUI push buttons when available."
;; :group 'widgets
;; :type 'boolean)
;; Cache already created GUI objects.
(defvar widget-push-button-cache nil)
;; (defvar widget-push-button-cache nil)
(defcustom widget-push-button-prefix "["
"String used as prefix for buttons."
@ -1521,16 +1522,14 @@ If END is omitted, it defaults to the length of LIST."
(widget-get widget :value)))
(tag-glyph (widget-get widget :tag-glyph))
(text (concat widget-push-button-prefix
tag widget-push-button-suffix))
(gui (cdr (assoc tag widget-push-button-cache))))
(cond (tag-glyph
(widget-image-insert widget text tag-glyph))
(t
(insert text)))))
tag widget-push-button-suffix)))
(if tag-glyph
(widget-image-insert widget text tag-glyph)
(insert text))))
(defun widget-gui-action (widget)
"Apply :action for WIDGET."
(widget-apply-action widget (this-command-keys)))
;; (defun widget-gui-action (widget)
;; "Apply :action for WIDGET."
;; (widget-apply-action widget (this-command-keys)))
;;; The `link' Widget.
@ -1628,6 +1627,7 @@ If END is omitted, it defaults to the length of LIST."
:convert-widget 'widget-value-convert-widget
:keymap widget-field-keymap
:format "%v"
:help-echo "M-TAB: complete field; RET: enter value"
:value ""
:prompt-internal 'widget-field-prompt-internal
:prompt-history 'widget-field-history
@ -1652,14 +1652,15 @@ the earlier input."
(defun widget-field-prompt-value (widget prompt value unbound)
"Prompt for a string."
(let ((initial (if unbound
nil
(cons (widget-apply widget :value-to-internal
value) 0)))
(history (widget-get widget :prompt-history)))
(let ((answer (widget-apply widget
:prompt-internal prompt initial history)))
(widget-apply widget :value-to-external answer))))
(widget-apply widget
:value-to-external
(widget-apply widget
:prompt-internal prompt
(unless unbound
(cons (widget-apply widget
:value-to-internal value)
0))
(widget-get widget :prompt-history))))
(defvar widget-edit-functions nil)
@ -1670,12 +1671,9 @@ the earlier input."
(defun widget-field-validate (widget)
"Valid if the content matches `:valid-regexp'."
(save-excursion
(let ((value (widget-apply widget :value-get))
(regexp (widget-get widget :valid-regexp)))
(if (string-match regexp value)
nil
widget))))
(unless (string-match (widget-get widget :valid-regexp)
(widget-apply widget :value-get))
widget))
(defun widget-field-value-create (widget)
"Create an editable text field."
@ -1771,9 +1769,8 @@ the earlier input."
(let ((value (widget-get widget :value))
(args (widget-get widget :args))
(explicit (widget-get widget :explicit-choice))
(explicit-value (widget-get widget :explicit-choice-value))
current)
(if (and explicit (equal value explicit-value))
(if (and explicit (equal value (widget-get widget :explicit-choice-value)))
(progn
;; If the user specified the choice for this value,
;; respect that choice as long as the value is the same.
@ -1821,9 +1818,6 @@ when he invoked the menu."
(cond ((not (display-popup-menus-p))
;; No place to pop up a menu.
nil)
((not (or (fboundp 'x-popup-menu) (fboundp 'popup-menu)))
;; No way to pop up a menu.
nil)
((< (length args) 2)
;; Empty or singleton list, just return the value.
nil)
@ -1883,21 +1877,18 @@ when he invoked the menu."
(when this-explicit
(widget-put widget :explicit-choice current)
(widget-put widget :explicit-choice-value (widget-get widget :value)))
(let ((value (widget-default-get current)))
(widget-value-set widget
(widget-apply current :value-to-external value)))
(widget-value-set
widget (widget-apply current
:value-to-external (widget-default-get current)))
(widget-setup)
(widget-apply widget :notify widget event)))
(run-hook-with-args 'widget-edit-functions widget))
(defun widget-choice-validate (widget)
;; Valid if we have made a valid choice.
(let ((void (widget-get widget :void))
(choice (widget-get widget :choice))
(child (car (widget-get widget :children))))
(if (eq void choice)
widget
(widget-apply child :validate))))
(if (eq (widget-get widget :void) (widget-get widget :choice))
widget
(widget-apply (car (widget-get widget :children)) :validate)))
(defun widget-choice-match (widget value)
;; Matches if one of the choices matches.
@ -2021,8 +2012,8 @@ If the item is checked, CHOSEN is a cons whose cdr is the value."
(goto-char from)
;; Parse % escapes in format.
(while (re-search-forward "%\\([bv%]\\)" nil t)
(let ((escape (aref (match-string 1) 0)))
(replace-match "" t t)
(let ((escape (char-after (match-beginning 1))))
(delete-backward-char 2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?b)
@ -2205,8 +2196,8 @@ Return an alist of (TYPE MATCH)."
(goto-char from)
;; Parse % escapes in format.
(while (re-search-forward "%\\([bv%]\\)" nil t)
(let ((escape (aref (match-string 1) 0)))
(replace-match "" t t)
(let ((escape (char-after (match-beginning 1))))
(delete-backward-char 2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?b)
@ -2245,11 +2236,9 @@ Return an alist of (TYPE MATCH)."
(while children
(setq current (car children)
children (cdr children))
(let* ((button (widget-get current :button))
(value (widget-apply button :value-get)))
(when value
(setq found current
children nil))))
(when (widget-apply (widget-get current :button) :value-get)
(setq found current
children nil)))
found))
(defun widget-radio-value-inline (widget)
@ -2259,11 +2248,9 @@ Return an alist of (TYPE MATCH)."
(while children
(setq current (car children)
children (cdr children))
(let* ((button (widget-get current :button))
(value (widget-apply button :value-get)))
(when value
(setq found (widget-apply current :value-inline)
children nil))))
(when (widget-apply (widget-get current :button) :value-get)
(setq found (widget-apply current :value-inline)
children nil)))
found))
(defun widget-radio-value-set (widget value)
@ -2346,10 +2333,10 @@ Return an alist of (TYPE MATCH)."
;;; The `editable-list' Widget.
(defcustom widget-editable-list-gui nil
"If non nil, use GUI push-buttons in editable list when available."
:type 'boolean
:group 'widgets)
;; (defcustom widget-editable-list-gui nil
;; "If non nil, use GUI push-buttons in editable list when available."
;; :type 'boolean
;; :group 'widgets)
(define-widget 'editable-list 'default
"A variable list of widgets of the same type."
@ -2370,21 +2357,22 @@ Return an alist of (TYPE MATCH)."
(defun widget-editable-list-format-handler (widget escape)
;; We recognize the insert button.
(let ((widget-push-button-gui widget-editable-list-gui))
;;; (let ((widget-push-button-gui widget-editable-list-gui))
(cond ((eq escape ?i)
(and (widget-get widget :indent)
(insert-char ? (widget-get widget :indent)))
(insert-char ?\ (widget-get widget :indent)))
(apply 'widget-create-child-and-convert
widget 'insert-button
(widget-get widget :append-button-args)))
(t
(widget-default-format-handler widget escape)))))
(widget-default-format-handler widget escape)))
;;; )
)
(defun widget-editable-list-value-create (widget)
;; Insert all values
(let* ((value (widget-get widget :value))
(type (nth 0 (widget-get widget :args)))
(inlinep (widget-get type :inline))
children)
(widget-put widget :value-pos (copy-marker (point)))
(set-marker-insertion-type (widget-get widget :value-pos) t)
@ -2393,7 +2381,7 @@ Return an alist of (TYPE MATCH)."
(if answer
(setq children (cons (widget-editable-list-entry-create
widget
(if inlinep
(if (widget-get type :inline)
(car answer)
(car (car answer)))
t)
@ -2479,17 +2467,17 @@ Return an alist of (TYPE MATCH)."
(defun widget-editable-list-entry-create (widget value conv)
;; Create a new entry to the list.
(let ((type (nth 0 (widget-get widget :args)))
(widget-push-button-gui widget-editable-list-gui)
;;; (widget-push-button-gui widget-editable-list-gui)
child delete insert)
(widget-specify-insert
(save-excursion
(and (widget-get widget :indent)
(insert-char ? (widget-get widget :indent)))
(insert-char ?\ (widget-get widget :indent)))
(insert (widget-get widget :entry-format)))
;; Parse % escapes in format.
(while (re-search-forward "%\\(.\\)" nil t)
(let ((escape (aref (match-string 1) 0)))
(replace-match "" t t)
(let ((escape (char-after (match-beginning 1))))
(delete-backward-char 2)
(cond ((eq escape ?%)
(insert ?%))
((eq escape ?i)
@ -2514,8 +2502,8 @@ Return an alist of (TYPE MATCH)."
:buttons (cons delete
(cons insert
(widget-get widget :buttons))))
(let ((entry-from (copy-marker (point-min)))
(entry-to (copy-marker (point-max))))
(let ((entry-from (point-min-marker))
(entry-to (point-max-marker)))
(set-marker-insertion-type entry-from t)
(set-marker-insertion-type entry-to nil)
(widget-put child :entry-from entry-from)
@ -2550,13 +2538,13 @@ Return an alist of (TYPE MATCH)."
value (cdr answer))
(and (eq (preceding-char) ?\n)
(widget-get widget :indent)
(insert-char ? (widget-get widget :indent)))
(insert-char ?\ (widget-get widget :indent)))
(push (cond ((null answer)
(widget-create-child widget arg))
((widget-get arg :inline)
(widget-create-child-value widget arg (car answer)))
(widget-create-child-value widget arg (car answer)))
(t
(widget-create-child-value widget arg (car (car answer)))))
(widget-create-child-value widget arg (car (car answer)))))
children))
(widget-put widget :children (nreverse children))))
@ -2667,8 +2655,6 @@ link for that string."
(widget-specify-doc widget from to)
(when widget-documentation-links
(let ((regexp widget-documentation-link-regexp)
(predicate widget-documentation-link-p)
(type widget-documentation-link-type)
(buttons (widget-get widget :buttons))
(widget-mouse-face (default-value 'widget-mouse-face))
(widget-button-face widget-documentation-face)
@ -2679,8 +2665,9 @@ link for that string."
(let ((name (match-string 1))
(begin (match-beginning 1))
(end (match-end 1)))
(when (funcall predicate name)
(push (widget-convert-button type begin end :value name)
(when (funcall widget-documentation-link-p name)
(push (widget-convert-button widget-documentation-link-type
begin end :value name)
buttons)))))
(widget-put widget :buttons buttons)))
(let ((indent (widget-get widget :indent)))
@ -2710,24 +2697,24 @@ link for that string."
(if (string-match "\n" doc)
(let ((before (substring doc 0 (match-beginning 0)))
(after (substring doc (match-beginning 0)))
buttons)
button)
(insert before ?\ )
(widget-documentation-link-add widget start (point))
(push (widget-create-child-and-convert
(setq button
(widget-create-child-and-convert
widget 'visibility
:help-echo "Show or hide rest of the documentation."
:off "More"
:always-active t
:action 'widget-parent-action
shown)
buttons)
shown))
(when shown
(setq start (point))
(when (and indent (not (zerop indent)))
(insert-char ?\ indent))
(insert after)
(widget-documentation-link-add widget start (point)))
(widget-put widget :buttons buttons))
(widget-put widget :buttons (list button)))
(insert doc)
(widget-documentation-link-add widget start (point))))
(insert ?\n))
@ -2803,12 +2790,11 @@ as the value."
(defun widget-regexp-validate (widget)
"Check that the value of WIDGET is a valid regexp."
(let ((val (widget-value widget)))
(condition-case data
(prog1 nil
(string-match val ""))
(error (widget-put widget :error (error-message-string data))
widget))))
(condition-case data
(prog1 nil
(string-match (widget-value widget) ""))
(error (widget-put widget :error (error-message-string data))
widget)))
(define-widget 'file 'string
"A file widget.
@ -2840,10 +2826,10 @@ It will read a file name from the minibuffer when invoked."
(insert (expand-file-name completion directory)))
(t
(message "Making completion list...")
(let ((list (file-name-all-completions name-part directory)))
(setq list (sort list 'string<))
(with-output-to-temp-buffer "*Completions*"
(display-completion-list list)))
(with-output-to-temp-buffer "*Completions*"
(display-completion-list
(sort (file-name-all-completions name-part directory)
'string<)))
(message "Making completion list...%s" "done")))))
(defun widget-file-prompt-value (widget prompt value unbound)
@ -2912,12 +2898,20 @@ It will read a directory name from the minibuffer when invoked."
(define-widget 'function 'sexp
"A Lisp function."
:complete-function 'lisp-complete-symbol
:complete-function (lambda ()
(interactive)
(lisp-complete-symbol 'fboundp))
:prompt-value 'widget-field-prompt-value
:prompt-internal 'widget-symbol-prompt-internal
:prompt-match 'fboundp
:prompt-history 'widget-function-prompt-value-history
:action 'widget-field-action
:validate (lambda (widget)
(unless (functionp (widget-value widget))
(widget-put widget :error (format "Invalid function: %S"
(widget-value widget)))
widget))
:value 'ignore
:tag "Function")
(defvar widget-variable-prompt-value-history nil
@ -2928,6 +2922,9 @@ It will read a directory name from the minibuffer when invoked."
"A Lisp variable."
:prompt-match 'boundp
:prompt-history 'widget-variable-prompt-value-history
:complete-function (lambda ()
(interactive)
(lisp-complete-symbol 'boundp))
:tag "Variable")
(defvar widget-coding-system-prompt-value-history nil
@ -2937,20 +2934,31 @@ It will read a directory name from the minibuffer when invoked."
"A MULE coding-system."
:format "%{%t%}: %v"
:tag "Coding system"
:base-only nil
:prompt-history 'widget-coding-system-prompt-value-history
:prompt-value 'widget-coding-system-prompt-value
:action 'widget-coding-system-action)
:action 'widget-coding-system-action
:complete-function (lambda ()
(interactive)
(lisp-complete-symbol 'coding-system-p))
:validate (lambda (widget)
(unless (coding-system-p (widget-value widget))
(widget-put widget :error (format "Invalid coding system: %S"
(widget-value widget)))
widget))
:value 'undecided
:prompt-match 'coding-system-p)
(defun widget-coding-system-prompt-value (widget prompt value unbound)
;; Read coding-system from minibuffer.
(intern
(completing-read (format "%s (default %s) " prompt value)
(mapcar (lambda (sym)
(list (symbol-name sym)))
(coding-system-list)))))
"Read coding-system from minibuffer."
(if (widget-get widget :base-only)
(intern
(completing-read (format "%s (default %s) " prompt value)
(mapcar #'list (coding-system-list t)) nil nil nil
coding-system-history))
(read-coding-system (format "%s (default %s) " prompt value) value)))
(defun widget-coding-system-action (widget &optional event)
;; Read a file name from the minibuffer.
(let ((answer
(widget-coding-system-prompt-value
widget
@ -2996,17 +3004,15 @@ It will read a directory name from the minibuffer when invoked."
(skip-syntax-forward "\\s-")
(if (eobp)
(error "Empty sexp -- use `nil'?"))
(let ((value (read (current-buffer))))
(if (eobp)
(if (widget-apply widget :match value)
nil
(widget-put widget :error (widget-get widget :type-error))
widget)
(widget-put widget
:error (format "Junk at end of expression: %s"
(buffer-substring (point)
(point-max))))
widget)))
(if (eobp)
(unless (widget-apply widget :match (read (current-buffer)))
(widget-put widget :error (widget-get widget :type-error))
widget)
(widget-put widget
:error (format "Junk at end of expression: %s"
(buffer-substring (point)
(point-max))))
widget))
(end-of-file ; Avoid confusing error message.
(widget-put widget :error "Unbalanced sexp")
widget)
@ -3132,12 +3138,10 @@ To use this type, you must define :match or :match-alternatives."
(defun widget-plist-convert-widget (widget)
;; Handle `:options'.
(let* ((options (widget-get widget :options))
(key-type (widget-get widget :key-type))
(widget-plist-value-type (widget-get widget :value-type))
(other `(editable-list :inline t
(group :inline t
,key-type
,widget-plist-value-type)))
,(widget-get widget :key-type)
,(widget-get widget :value-type))))
(args (if options
(list `(checklist :inline t
:greedy t
@ -3178,12 +3182,10 @@ To use this type, you must define :match or :match-alternatives."
(defun widget-alist-convert-widget (widget)
;; Handle `:options'.
(let* ((options (widget-get widget :options))
(key-type (widget-get widget :key-type))
(widget-alist-value-type (widget-get widget :value-type))
(other `(editable-list :inline t
(cons :format "%v"
,key-type
,widget-alist-value-type)))
,(widget-get widget :key-type)
,(widget-get widget :value-type))))
(args (if options
(list `(checklist :inline t
:greedy t
@ -3220,7 +3222,7 @@ To use this type, you must define :match or :match-alternatives."
(let ((args (widget-get widget :args))
(completion-ignore-case (widget-get widget :case-fold))
current choices old)
;; Find the first arg that match VALUE.
;; Find the first arg that matches VALUE.
(let ((look args))
(while look
(if (widget-apply (car look) :match value)
@ -3316,9 +3318,8 @@ To use this type, you must define :match or :match-alternatives."
(insert-and-inherit (substring completion (length prefix))))
(t
(message "Making completion list...")
(let ((list (all-completions prefix list nil)))
(with-output-to-temp-buffer "*Completions*"
(display-completion-list list)))
(with-output-to-temp-buffer "*Completions*"
(display-completion-list (all-completions prefix list nil)))
(message "Making completion list...done")))))
(defun widget-color-sample-face-get (widget)
@ -3356,8 +3357,10 @@ To use this type, you must define :match or :match-alternatives."
;;; The Help Echo
(defun widget-at (pos)
"The button or field at POS."
(defun widget-at (&optional pos)
"The button or field at POS (default, point)."
(unless pos
(setq pos (point)))
(or (get-char-property pos 'button)
(get-char-property pos 'field)))
@ -3377,7 +3380,9 @@ To use this type, you must define :match or :match-alternatives."
(stringp
(setq help-echo
(condition-case nil
(funcall help-echo (current-buffer) (point))
(funcall help-echo
(selected-window) (current-buffer)
(point))
(error (funcall help-echo widget))))))
(stringp (eval help-echo)))
(message "%s" help-echo))))