src/ucw/contextl-components.lisp

   1 (in-package :lisp-on-lines-ucw)
   2
   3 (defclass contextl-application (standard-application)
   4   ()
   5   (:default-initargs
   6
   7    :action-class 'contextl-action))
   8
   9 (defclass contextl-action (ucw-standard:standard-action)
  10   ((dynamic-environment :accessor action-dynamic-environment
  11                         :initform nil
  12                         :initarg :dynamic-environment))
  13   (:metaclass closer-mop:funcallable-standard-class))
  14
  15 (defmethod shared-initialize :after ((action contextl-action) slots &rest args)
  16   (declare (ignore slots args))
  17   (setf (action-dynamic-environment action) (capture-dynamic-environment)))
  18
  19 (defmethod ucw-core:handle-action :wrap-around ((action contextl-action) application session frame)
  20       (call-next-method))
  21
  22 (defmethod ucw-core:call-action :around ((action contextl-action) application session frame)
  23   (with-dynamic-environment ((action-dynamic-environment action))
  24     (call-next-method)))
  25
  26 (defmethod ucw-core:call-callbacks ((action contextl-action) frame request)
  27   (with-dynamic-environment ((action-dynamic-environment action))
  28     (call-next-method)))
  29
  30 (defclass contextl-component (standard-component)
  31   ((component-dynamic-environment :accessor component-dynamic-environment
  32                                   :initform nil))
  33   (:metaclass standard-component-class))
  34
  35 (defmethod render :wrap-around ((component contextl-component))
  36   (if (component-dynamic-environment component)
  37       (with-dynamic-environment ((component-dynamic-environment component))
  38         (call-next-method))
  39       (progn  (setf (component-dynamic-environment component) (capture-dynamic-environment))
  40               (call-next-method))))
  41
  42 (defmethod/cc call-component :before ((from t) (to contextl-component))
  43  (setf (component-dynamic-environment to) (capture-dynamic-environment)))
  44
  45
  46
  47
  48 #+LOL-TEST(progn
  49   (defclass contextl-test-application (contextl-application)
  50     ()
  51     (:default-initargs :url-prefix "/contextl/"))
  52
  53   (defparameter *context-test-application* (make-instance 'contextl-test-application))
  54
  55   (register-application ucw-user:*example-server* *context-test-application*)
  56
  57   (defentry-point "test.ucw" (:application *context-test-application*) ()
  58       (call 'contextl-test-component))
  59
  60  (defdynamic foo 1)
  61
  62 (defclass contextl-test-component (contextl-component) ()
  63   (:metaclass standard-component-class))
  64
  65 (defmethod render ((component contextl-test-component))
  66   (<:As-html  (dynamic foo))
  67   (dlet ((foo (1+ (dynamic foo))))
  68     (<:as-html (dynamic foo))
  69     (<:br)
  70     (with-described-object (T nil)
  71       (let ((a (find-attribute *description* 'identity)))
  72         (<ucw:a :action  (call 'contextl-test-component)
  73                 "Call")))
  74     (<:br)
  75     (when (component.calling-component component)
  76       (<ucw:a :action (answer)
  77               "Answer")))
  78 ))
  79
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  87
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  89
  90
  91
  92
  93
  94
  95 #+nil (defclass contextl-session-frame (ucw-core::standard-session-frame)
  96   ())
  97
  98 #+nil(defmethod ucw-core::register-callback-in-frame ((frame contextl-session-frame) callback &key &allow-other-keys)
  99   (let ((lambda (ucw::callback-lambda callback)))
 100     (let ((context (contextl:current-layer-context)))
 101       (setf (ucw::callback-lambda callback)
 102             (lambda (arg)
 103               (contextl:funcall-with-layer-context context lambda arg)))
 104       (call-next-method))))
 105
 106 #+nil(setf ucw-core::*session-frame-class* 'contextl-session-frame)
 107
 108