Add update to rofl
[clinton/lisp-on-lines.git] / src / standard-descriptions / edit.lisp
CommitLineData
4358148e 1(in-package :lisp-on-lines)
2
4358148e 3(define-description editable ()
4 ()
5 (:mixinp t))
6
f4efa7ff 7(define-layered-class standard-attribute
8 :in-layer #.(defining-description 'editable)
9 ()
10 ((edit-attribute-p
11 :initform :inherit
12 :layered-accessor attribute-editp
13 :initarg :editp
14 :layered t)
15 (setter
16 :initarg :setter
17 :layered t
18 :accessor attribute-setter
19 :initform nil)
20 (attribute-editor
2548f054 21 :initarg :editor
f4efa7ff 22 :layered t
23 :accessor attribute-editor
2548f054 24 :initform (make-instance 'attribute-editor)
f4efa7ff 25 :documentation "This ones a bit odd")))
26
2548f054 27(defmethod shared-initialize :after ((object standard-attribute)
28 slots &rest args &key input &allow-other-keys)
29
30 (when input
31 (setf (attribute-editor object)
32 (apply #'make-instance (find-editor-class input)
33 input))))
34
35
36(defun find-editor-class (spec)
37 (let ((class (getf spec :class))
38 (type (getf spec :type)))
39 (or class (when
40 (and type (symbolp type))
41 (let ((name (format nil "~A-~A" type 'attribute-editor)))
42 (or (find-class (intern name (symbol-package type)) nil)
43 (find-class (intern name) nil)
44 'string-attribute-editor))))))
f4efa7ff 45
46(defclass attribute-editor ()
47 ((type :initarg :type
2548f054 48 :initform 'string
49 :accessor attribute-editor-type)
f4efa7ff 50 (parser :initarg :parse-using
51 :initform 'identity
52 :accessor attribute-editor-parsing-function)
53 (prompt :initarg :prompt
2548f054 54 :initform nil)
55 (unbound-value
56 :initarg :unbound-value
57 :initform "")))
58
59
f4efa7ff 60
61(defclass string-attribute-editor (attribute-editor) ())
62(defclass text-attribute-editor (string-attribute-editor) ())
2548f054 63
64(deftype password () 'string)
65
f4efa7ff 66(defclass password-attribute-editor (string-attribute-editor) ())
67
68(defclass number-attribute-editor (attribute-editor) ()
69 (:default-initargs
70 :parse-using 'parse-number:PARSE-NUMBER
71 :type 'number))
72
73(defun parse-attribute-value (attribute value)
74 (funcall (attribute-editor-parsing-function
75 (attribute-editor attribute))
76 value))
77
78(define-layered-function display-attribute-editor (attribute)
79 (:method (attribute)
80 (setf (attribute-value attribute)
81 (funcall (attribute-editor-parsing-function
82 (attribute-editor attribute))
83 (read-line)))))
84
4358148e 85(define-description T ()
86 ((editp :label "Edit by Default?"
87 :value nil
88 :editp nil)
89 (identity :editp nil)
90 (type :editp nil)
91 (class :editp nil))
92 (:in-description editable))
93
b7657b86 94(define-layered-method (setf attribute-value-using-object)
95 :in-layer #.(defining-description 'editable)(value object attribute)
96
97 (let ((setter (attribute-setter attribute)))
98 (if setter
99 (funcall setter value object)
100 (error "No setter in ~A for ~A" attribute object))))
4358148e 101
4358148e 102
f4efa7ff 103(define-layered-function attribute-editp (attribute)
104 (:method (attribute) nil))
4358148e 105
106(define-layered-method attribute-editp
107 :in-layer #.(defining-description 'editable)
f4efa7ff 108 ((attribute standard-attribute))
2548f054 109 (let ((value (attribute-value attribute)))
110 (unless (or (unbound-slot-value-p value)
111 (typep value
112 (attribute-editor-type
113 (attribute-editor attribute))))
114 (return-from attribute-editp nil)))
f4efa7ff 115 (let ((edit? (call-next-method)))
116 (if (eq :inherit edit?)
117 (attribute-value (find-attribute
118 (attribute-description attribute)
119 'editp))
120 edit?)))
4358148e 121
122
f4efa7ff 123(define-layered-method display-attribute-value
4358148e 124 :in-layer #.(defining-description 'editable)
f4efa7ff 125 ((attribute standard-attribute))
126 (if (attribute-editp attribute)
127 (display-attribute-editor attribute)
e8d4fa45 128 (call-next-method)))
4358148e 129
130
f4efa7ff 131
132
133
4358148e 134