;;; Code:
(require 'poe)
-
(eval-when-compile (require 'cl))
-
(require 'custom)
(defconst mime-user-interface-product ["EMY" (1 13 6) "Life is balance"]
(autoload 'mule-caesar-region "mule-caesar"
"Caesar rotation of current region." t)
+(autoload 'widget-convert-button "wid-edit")
+
;;; @ constants
;;;
:group 'mime
:type 'face)
+(defcustom mime-use-widget nil
+ "If t, use widget to display buttons."
+ :group 'mime
+ :type 'boolean)
+
+(defun mime-create-widget-button (string function)
+ "Display STRING as a widget button with the callback FUNCTION.
+Under XEmacs, the function `mime-create-xpm-button' might be identical
+to the function `mime-create-widget-button' if the feature `xpm' is not
+provided or the TTY frame is used."
+ (let ((start (point)))
+ (widget-create
+ 'push-button
+ :action `(lambda (widget &optional event) (,function))
+ :mouse-down-action `(lambda (widget event)
+ (let (buf point)
+ (save-window-excursion
+ (mouse-set-point event)
+ (setq buf (current-buffer)
+ point (point)))
+ (save-excursion
+ (set-buffer buf)
+ (goto-char point)
+ (,function))))
+ string)
+ ;; #### ???
+;; (static-when (featurep 'xemacs)
+;; (let ((end (point))
+;; extent)
+;; (insert "[" string "]")
+;; (while (setq extent (extent-at start nil nil extent))
+;; (set-extent-endpoints extent end (point)))
+;; (delete-region start end))))
+ (add-text-properties start (point)
+ (list 'start-open t
+ 'mime-button t)))
+ (insert "\n"))
+
+(static-when (featurep 'xemacs)
+ (defcustom mime-xpm-button-shadow-thickness 3
+ "A number of pixels should be used for the shadows on the edges of
+the buttons."
+ :group 'mime
+ :type 'integer)
+
+ (defcustom mime-xpm-button-foreground "Yellow"
+ "A color used to display the text."
+ :group 'mime
+ :type 'string)
+
+ (defcustom mime-xpm-button-background "#a0a0d0"
+ "A background color the text will be displayed upon."
+ :group 'mime
+ :type 'string)
+
+ (defvar mime-xpm-button-glyph-cache nil)
+
+ ;; #### device-on-widow-system-p must be checked at run-time.
+ (if (and (featurep 'xpm) (device-on-window-system-p))
+ (defun mime-create-xpm-button (string function)
+ "Display STRING as a XPM button with the callback FUNCTION.
+It might be identical to the function `mime-create-widget-button'
+if the feature `xpm' is not provided or the TTY frame is used."
+ (set-extent-properties (make-extent (point)
+ (progn
+ (insert "[" string "]")
+ (point)))
+ '(invisible t intangible t))
+ (let* ((spec (list string
+ mime-xpm-button-shadow-thickness
+ mime-xpm-button-foreground
+ mime-xpm-button-background))
+ (button (cdr (assoc spec mime-xpm-button-glyph-cache))))
+ (or button
+ (set-alist 'mime-xpm-button-glyph-cache spec
+ (setq button (apply (function xpm-button-create)
+ spec))))
+ (let* ((extent (make-extent (point) (point)))
+ (down-glyph (make-glyph (car (cdr button))))
+ (up-glyph (make-glyph (car button)))
+ (down-func `(lambda (event)
+ (interactive "e")
+ (set-extent-begin-glyph ,extent ,down-glyph)))
+ (up-func `(lambda (event)
+ (interactive "e")
+ (mouse-set-point event)
+ (set-extent-begin-glyph ,extent ,up-glyph)
+ (,function)))
+ (keymap (make-sparse-keymap)))
+ (define-key keymap 'button1 down-func)
+ (define-key keymap 'button2 down-func)
+ (define-key keymap 'button1up up-func)
+ (define-key keymap 'button2up up-func)
+ (set-extent-begin-glyph extent up-glyph)
+ (set-extent-property extent 'keymap keymap))
+ (insert "\n")))
+ (fset 'mime-create-xpm-button 'mime-create-widget-button)))
+
+(defcustom mime-create-button-function 'mime-create-widget-button
+ "A function called to create the content button."
+ :group 'mime
+ :type (list
+ 'cons
+ :convert-widget
+ (function
+ (lambda (widget)
+ (list
+ 'radio
+ :args
+ (append
+ '((const :tag "Widget button" mime-create-widget-button))
+ (static-when (featurep 'xemacs)
+ '((const :tag "Xpm button" mime-create-xpm-button)))
+ '((function :tag "Other"))))))))
+
(defsubst mime-add-button (from to function &optional data)
"Create a button between FROM and TO with callback FUNCTION and DATA."
(and mime-button-face
(and mime-button-mouse-face
(put-text-property from to 'mouse-face mime-button-mouse-face))
(add-text-properties from to (list 'mime-button-callback function
- 'start-open t))
+ 'start-open t
+ 'mime-button t))
(and data
(add-text-properties from to (list 'mime-button-data data))))
(unless (bolp)
(insert "\n"))
(save-restriction
- (narrow-to-region (point)(point))
- ;; One more newline to avoid concatenation of face property.
- (insert (concat "[" string "]\n\n"))
- (mime-add-button (point-min) (1- (point-max)) function data)
- (delete-char -1)))
+ (narrow-to-region (point) (point))
+ (if mime-use-widget
+ (mapcar (function
+ (lambda (line)
+ (funcall mime-create-button-function line function)))
+ (split-string string "\n"))
+ (progn
+ ;; One more newline to avoid concatenation of face property.
+ (insert (concat "[" string "]\n\n"))
+ (mime-add-button (point-min) (1- (point-max)) function data)
+ (delete-char -1)))))
(defvar mime-button-mother-dispatcher nil)
(while (re-search-forward mime-browse-url-regexp nil t)
(let ((beg (match-beginning 0))
(end (match-end 0)))
- (mime-add-button beg end mime-browse-url-function
- (list (buffer-substring beg end))))))
+ (if mime-use-widget
+ (progn
+ (widget-convert-button 'mime-url-link beg end
+ (buffer-substring beg end))
+ (static-unless (featurep 'xemacs)
+ (overlay-put (make-overlay beg end) 'local-map widget-keymap)))
+ (mime-add-button beg end mime-browse-url-function
+ (list (buffer-substring beg end)))))))
+
+(define-widget 'mime-url-link 'link
+ "A link to an www page."
+ :help-echo 'widget-url-link-help-echo
+ :action 'widget-mime-url-link-action)
+
+(defun widget-mime-url-link-action (widget &optional event)
+ "Open the url specified by WIDGET."
+ (funcall mime-browse-url-function (widget-value widget)))
;;; @ menu
projects / elisp / semi.git / blobdiff