| 1 | (in-package :lisp-on-lines) |
| 2 | |
| 3 | |
| 4 | ;;;; The Standard Layer Hierarchy |
| 5 | (deflayer viewer) |
| 6 | (deflayer editor (viewer)) |
| 7 | (deflayer creator (editor)) |
| 8 | |
| 9 | ;;;; 'Mixin' Layers |
| 10 | (deflayer one-line) |
| 11 | |
| 12 | (deflayer wrap-form) |
| 13 | |
| 14 | (define-attributes (contextl-default) |
| 15 | (:viewer viewer) |
| 16 | (:editor editor) |
| 17 | (:creator creator)) |
| 18 | |
| 19 | |
| 20 | (defmacro with-component ((component) &body body) |
| 21 | `(let ((self ,component)) |
| 22 | (flet ((display* (thing &rest args) |
| 23 | (apply #'display ,component thing args))) |
| 24 | ,@body))) |
| 25 | |
| 26 | (defmacro call-display (object &rest args) |
| 27 | `(call-component self (make-instance 'standard-display-component |
| 28 | :display #'(lambda (component) |
| 29 | (with-component (component) |
| 30 | (<:as-html ,object) |
| 31 | (display ,object ,@args)))))) |
| 32 | |
| 33 | ;;;;; Macros |
| 34 | |
| 35 | (defmacro do-attributes ((var occurence attributes) &body body) |
| 36 | (with-unique-names (att plist type) |
| 37 | `(loop for ,att in ,attributes |
| 38 | do (let* ((,att (ensure-list ,att)) |
| 39 | (,plist (rest ,att)) |
| 40 | (,type (getf ,plist :type)) |
| 41 | (,var (if ,type |
| 42 | (make-attribute :name (first ,att) :type ,type :plist ,plist) |
| 43 | (find-attribute ,occurence (first ,att))))) |
| 44 | (flet ((display-attribute* (component object) |
| 45 | (display-using-description |
| 46 | ,var |
| 47 | component |
| 48 | object |
| 49 | (rest ,att)))) |
| 50 | (with-plist ((plist-union (rest ,att) (find-plist ,var)) ,var) |
| 51 | ,@body)))))) |
| 52 | |
| 53 | |
| 54 | (defmethod find-plist (object) |
| 55 | (list)) |
| 56 | |
| 57 | (defmethod find-plist ((attribute standard-attribute)) |
| 58 | (attribute.plist attribute)) |
| 59 | |
| 60 | (defmacro with-plist ((plist-form &optional prefix) &body body) |
| 61 | (with-unique-names (p) |
| 62 | (let ((get (intern (string-upcase (if prefix (strcat prefix '-getp) "GETP")))) |
| 63 | (set (intern (string-upcase (if prefix (strcat prefix '-setp) "SETP"))))) |
| 64 | `(let ((,p ,plist-form)) |
| 65 | (flet ((,get (p) |
| 66 | (getf ,p p)) |
| 67 | (,set (p v) |
| 68 | (setf (getf ,p p) v))) |
| 69 | (declare (ignorable #',get #',set)) |
| 70 | ,@body))))) |
| 71 | |
| 72 | |
| 73 | (defmacro defdisplay ((&key |
| 74 | (in-layer nil layer-supplied-p) |
| 75 | (combination nil combination-supplied-p) |
| 76 | (description '(occurence standard-occurence) description-supplied-p) |
| 77 | (component 'component) |
| 78 | ((:class object) nil)) |
| 79 | &body body) |
| 80 | |
| 81 | `(define-layered-method display-using-description |
| 82 | ,@(when layer-supplied-p `(:in-layer ,in-layer)) |
| 83 | ,@(when combination-supplied-p `(,combination)) |
| 84 | (,description ,component |
| 85 | ,(if object (if (listp object) object (list object object)) 'object) properties) |
| 86 | (declare (ignorable display-attribute)) |
| 87 | |
| 88 | (with-plist ((plist-union properties (find-plist ,(car description)))) |
| 89 | |
| 90 | ,(if (not description-supplied-p) |
| 91 | `(flet ((display-attribute (attribute) |
| 92 | (let ((a (ensure-list attribute))) |
| 93 | (display-using-description (find-attribute ,(car description) (car a)) ,component ,(car (ensure-list object)) (cdr a))))) |
| 94 | |
| 95 | ,@body) |
| 96 | `(progn ,@body))))) |
| 97 | |
| 98 | |
| 99 | (define-layered-function display (component object &rest args) |
| 100 | (:documentation |
| 101 | "Displays OBJECT in COMPONENT. |
| 102 | |
| 103 | default action is to FUNCALL-WITH-LAYERS the DISPLAY-USING-DESCRIPTION method.")) |
| 104 | |
| 105 | |
| 106 | |
| 107 | (define-layered-method display |
| 108 | ((component t) (object t) &rest args &key layers (type 'viewer) &allow-other-keys) |
| 109 | (let* ((occurence (find-occurence object)) |
| 110 | (plist (attribute.plist |
| 111 | (find-attribute occurence (intern (format nil "~A" type) :KEYWORD)))) |
| 112 | (layers (append (when type (loop for ty in (ensure-list type) |
| 113 | nconc `(+ ,ty))) |
| 114 | layers |
| 115 | (getf plist :layers)))) |
| 116 | (funcall-with-layers |
| 117 | layers |
| 118 | #'display-using-description occurence component object (plist-union args plist)))) |
| 119 | |
| 120 | (define-layered-method display |
| 121 | ((component t) (object symbol) &rest args &key (layers '(+ viewer)) &allow-other-keys) |
| 122 | (funcall-with-layers |
| 123 | layers |
| 124 | #'display-using-description t component object args)) |
| 125 | |
| 126 | |
| 127 | (define-layered-method display ((component t) (list list) &rest args) |
| 128 | "The Default Display* for LISTS" |
| 129 | (<:ul |
| 130 | (dolist* (item list) |
| 131 | (<:li (apply #'display component item args))))) |
| 132 | |
| 133 | |
| 134 | (define-layered-function display-using-description (description component object properties) |
| 135 | (:documentation |
| 136 | "Render the object in component, using DESCRIPTION, which is an occurence, and attribute, or something else")) |
| 137 | |
| 138 | (define-layered-method display-using-description (description component object properties) |
| 139 | "The standard display simply prints the object" |
| 140 | (declare (ignore component properties description)) |
| 141 | (<:as-html object)) |
| 142 | |
| 143 | (define-layered-method display-using-description |
| 144 | ((occurence standard-occurence) component object properties) |
| 145 | |
| 146 | (with-plist (properties o) |
| 147 | (loop for att in (or (o-getp :attributes) (list-slots object)) |
| 148 | do (let* ((att (ensure-list att)) |
| 149 | (attribute (find-attribute occurence (first att)))) |
| 150 | (warn "trying to render ~A in ~A" attribute object) |
| 151 | (with-plist ((plist-union (rest att) (find-plist attribute))) |
| 152 | (<:p :class "attribute" |
| 153 | (<:span :class "label" (<:as-html (getp :label) " ")) |
| 154 | (display-using-description |
| 155 | attribute |
| 156 | component |
| 157 | object |
| 158 | (rest att)))))))) |
| 159 | |
| 160 | (define-layered-method display-using-description |
| 161 | :in-layer one-line ((occurence standard-occurence) component object properties) |
| 162 | (with-plist (properties occurence) |
| 163 | (do-attributes (attribute occurence (or (occurence-getp :attributes) |
| 164 | (list-slots object))) |
| 165 | (display-attribute* component object) (<:as-html " ")))) |
| 166 | |
| 167 | |
| 168 | (define-layered-method display-using-description ((attribute standard-attribute) component object properties) |
| 169 | (let ((p (lol:make-view object :type :viewer)) |
| 170 | (name (attribute.name attribute))) |
| 171 | (when name (present-slot-view p name)))) |
| 172 | |
| 173 | (defdisplay (:in-layer |
| 174 | editor |
| 175 | :description (attribute standard-attribute)) |
| 176 | "Legacy editor using UCW presentations" |
| 177 | (let ((p (lol:make-view object :type :editor))) |
| 178 | (present-slot-view p (getf (find-plist attribute) :slot-name)))) |
| 179 | |
| 180 | |
| 181 | |
| 182 | (defdisplay (:class |
| 183 | (button (eql 'standard-form-buttons)) |
| 184 | :description (description t)) |
| 185 | (<ucw:submit :action (ok component) |
| 186 | :value "Ok.") |
| 187 | |
| 188 | |
| 189 | (defdisplay (:in-layer wrap-form |
| 190 | :combination :around) |
| 191 | (<ucw:form |
| 192 | :action (refresh-component component) |
| 193 | (call-next-method) |
| 194 | (display component 'standard-form-buttons)))) |
| 195 | |
| 196 | (defclass/meta test-class () |
| 197 | ((test-string :initform "test string" :type string)) |
| 198 | (:documentation "foo")) |
| 199 | |
| 200 | (define-attributes (test-class) |
| 201 | (test-string t :label "String :" :editablep t)) |
| 202 | |
| 203 | (defcomponent test-component () |
| 204 | ((display-types :accessor display-types :initform (list 'viewer 'editor 'creator 'one-line 'as-string)) |
| 205 | (current-type :accessor current-type :initform 'viewer) |
| 206 | (instance :accessor instance :initform (make-instance 'test-class)))) |
| 207 | |
| 208 | (defmethod render ((self test-component)) |
| 209 | (let ((test (instance self))) |
| 210 | (<:h1 (<:as-html "Lisp on Lines Test Component")) |
| 211 | (with-component (self) |
| 212 | (<ucw:form |
| 213 | :action (refresh-component self) |
| 214 | (<ucw:select :accessor (current-type self) |
| 215 | (dolist* (type (display-types self)) |
| 216 | (<ucw:option :value type (<:as-html type)))) |
| 217 | (<:input :type "Submit" :value "update") |
| 218 | (<:fieldset |
| 219 | (<:legend (<:as-html (current-type self))) |
| 220 | (display test :type (current-type self))))) |
| 221 | |
| 222 | (<:div |
| 223 | (<:h2 |
| 224 | (<:as-html "UCW Presentation based displays (the old school")) |
| 225 | (dolist (type '(:viewer :editor :creator :one-line :as-string)) |
| 226 | (<:h3 (<:as-html type)) |
| 227 | (present-view (test type self)) |
| 228 | (<ucw:a :action (call-view (test type self)) |
| 229 | (<:as-html "Call to " type)))))) |
| 230 | |
| 231 | |
| 232 | (defcomponent standard-display-component () |
| 233 | ((display-function :accessor display-function :initarg :display))) |
| 234 | |
| 235 | (defmethod render ((self standard-display-component)) |
| 236 | (funcall (display-function self) self)) |
| 237 | |
| 238 | |
| 239 | |
| 240 | |
| 241 | |
| 242 | |