4358148e |
1 | (in-package :lisp-on-lines) |
2 | |
3 | |
4 | (define-description editable () |
5 | () |
6 | (:mixinp t)) |
7 | |
f4efa7ff |
8 | (define-layered-class standard-attribute |
9 | :in-layer #.(defining-description 'editable) |
10 | () |
11 | ((edit-attribute-p |
12 | :initform :inherit |
13 | :layered-accessor attribute-editp |
14 | :initarg :editp |
15 | :layered t) |
16 | (setter |
17 | :initarg :setter |
18 | :layered t |
19 | :accessor attribute-setter |
20 | :initform nil) |
21 | (attribute-editor |
22 | :initarg :input |
23 | :layered t |
24 | :accessor attribute-editor |
25 | :initform nil |
26 | :documentation "This ones a bit odd"))) |
27 | |
28 | (defmethod attribute-editor :around (attribute) |
29 | (flet ((find-editor-class (spec) |
30 | (let ((class (getf spec :class)) |
31 | (type (getf spec :type))) |
32 | (or class (when (and type (symbolp type)) |
33 | (intern (format nil "~A-~A" type 'attribute-editor))) |
34 | 'string-attribute-editor)))) |
35 | (let ((editor? (call-next-method))) |
36 | (if (listp editor?) |
37 | (setf (attribute-editor attribute) |
38 | (apply #'make-instance (find-editor-class editor?) |
39 | editor?)) |
40 | (call-next-method))))) |
41 | |
42 | |
43 | (defclass attribute-editor () |
44 | ((type :initarg :type |
45 | :initform 'string) |
46 | (parser :initarg :parse-using |
47 | :initform 'identity |
48 | :accessor attribute-editor-parsing-function) |
49 | (prompt :initarg :prompt |
50 | :initform nil))) |
51 | |
52 | (defclass string-attribute-editor (attribute-editor) ()) |
53 | (defclass text-attribute-editor (string-attribute-editor) ()) |
54 | (defclass password-attribute-editor (string-attribute-editor) ()) |
55 | |
56 | (defclass number-attribute-editor (attribute-editor) () |
57 | (:default-initargs |
58 | :parse-using 'parse-number:PARSE-NUMBER |
59 | :type 'number)) |
60 | |
61 | (defun parse-attribute-value (attribute value) |
62 | (funcall (attribute-editor-parsing-function |
63 | (attribute-editor attribute)) |
64 | value)) |
65 | |
66 | (define-layered-function display-attribute-editor (attribute) |
67 | (:method (attribute) |
68 | (setf (attribute-value attribute) |
69 | (funcall (attribute-editor-parsing-function |
70 | (attribute-editor attribute)) |
71 | (read-line))))) |
72 | |
4358148e |
73 | (define-description T () |
74 | ((editp :label "Edit by Default?" |
75 | :value nil |
76 | :editp nil) |
77 | (identity :editp nil) |
78 | (type :editp nil) |
79 | (class :editp nil)) |
80 | (:in-description editable)) |
81 | |
b7657b86 |
82 | (define-layered-method (setf attribute-value-using-object) |
83 | :in-layer #.(defining-description 'editable)(value object attribute) |
84 | |
85 | (let ((setter (attribute-setter attribute))) |
86 | (if setter |
87 | (funcall setter value object) |
88 | (error "No setter in ~A for ~A" attribute object)))) |
4358148e |
89 | |
4358148e |
90 | |
f4efa7ff |
91 | (define-layered-function attribute-editp (attribute) |
92 | (:method (attribute) nil)) |
4358148e |
93 | |
94 | (define-layered-method attribute-editp |
95 | :in-layer #.(defining-description 'editable) |
f4efa7ff |
96 | ((attribute standard-attribute)) |
97 | (let ((edit? (call-next-method))) |
98 | (if (eq :inherit edit?) |
99 | (attribute-value (find-attribute |
100 | (attribute-description attribute) |
101 | 'editp)) |
102 | edit?))) |
4358148e |
103 | |
104 | |
f4efa7ff |
105 | (define-layered-method display-attribute-value |
4358148e |
106 | :in-layer #.(defining-description 'editable) |
f4efa7ff |
107 | ((attribute standard-attribute)) |
108 | (if (attribute-editp attribute) |
109 | (display-attribute-editor attribute) |
e8d4fa45 |
110 | (call-next-method))) |
4358148e |
111 | |
112 | |
f4efa7ff |
113 | |
114 | |
115 | |
4358148e |
116 | |