()
(:mixinp t))
+(define-layered-class standard-attribute
+ :in-layer #.(defining-description 'editable)
+ ()
+ ((edit-attribute-p
+ :initform :inherit
+ :layered-accessor attribute-editp
+ :initarg :editp
+ :layered t)
+ (setter
+ :initarg :setter
+ :layered t
+ :accessor attribute-setter
+ :initform nil)
+ (attribute-editor
+ :initarg :input
+ :layered t
+ :accessor attribute-editor
+ :initform nil
+ :documentation "This ones a bit odd")))
+
+(defmethod attribute-editor :around (attribute)
+ (flet ((find-editor-class (spec)
+ (let ((class (getf spec :class))
+ (type (getf spec :type)))
+ (or class (when (and type (symbolp type))
+ (intern (format nil "~A-~A" type 'attribute-editor)))
+ 'string-attribute-editor))))
+ (let ((editor? (call-next-method)))
+ (if (listp editor?)
+ (setf (attribute-editor attribute)
+ (apply #'make-instance (find-editor-class editor?)
+ editor?))
+ (call-next-method)))))
+
+
+(defclass attribute-editor ()
+ ((type :initarg :type
+ :initform 'string)
+ (parser :initarg :parse-using
+ :initform 'identity
+ :accessor attribute-editor-parsing-function)
+ (prompt :initarg :prompt
+ :initform nil)))
+
+(defclass string-attribute-editor (attribute-editor) ())
+(defclass text-attribute-editor (string-attribute-editor) ())
+(defclass password-attribute-editor (string-attribute-editor) ())
+
+(defclass number-attribute-editor (attribute-editor) ()
+ (:default-initargs
+ :parse-using 'parse-number:PARSE-NUMBER
+ :type 'number))
+
+(defun parse-attribute-value (attribute value)
+ (funcall (attribute-editor-parsing-function
+ (attribute-editor attribute))
+ value))
+
+(define-layered-function display-attribute-editor (attribute)
+ (:method (attribute)
+ (setf (attribute-value attribute)
+ (funcall (attribute-editor-parsing-function
+ (attribute-editor attribute))
+ (read-line)))))
+
(define-description T ()
((editp :label "Edit by Default?"
:value nil
(funcall setter value object)
(error "No setter in ~A for ~A" attribute object))))
-(define-layered-class standard-attribute
- :in-layer #.(defining-description 'editable)
- ()
- ((edit-attribute-p
- :initform :inherit
- :accessor %attribute-editp
- :initarg :editp
- :layered t)
- (setter
- :initarg :setter
- :layered t
- :accessor attribute-setter
- :initform nil)))
-(define-layered-function attribute-editp (object attribute)
- (:method (object attribute) nil))
+(define-layered-function attribute-editp (attribute)
+ (:method (attribute) nil))
(define-layered-method attribute-editp
:in-layer #.(defining-description 'editable)
- (object (attribute standard-attribute))
-
- (if (eq :inherit (%attribute-editp attribute))
- (attribute-value (find-attribute
- (attribute-description attribute)
- 'editp))
- (%attribute-editp attribute)))
+ ((attribute standard-attribute))
+ (let ((edit? (call-next-method)))
+ (if (eq :inherit edit?)
+ (attribute-value (find-attribute
+ (attribute-description attribute)
+ 'editp))
+ edit?)))
-(define-layered-method display-using-description
+(define-layered-method display-attribute-value
:in-layer #.(defining-description 'editable)
- ((attribute standard-attribute) display object &rest args)
-
- (declare (ignore args))
- (if (attribute-editp object attribute)
- (format *display* "This is where we'd edit")
+ ((attribute standard-attribute))
+ (if (attribute-editp attribute)
+ (display-attribute-editor attribute)
(call-next-method)))
+
+
+
\ No newline at end of file