From 3a420e7db4db666d59ae107bc689a359c3bdf07a Mon Sep 17 00:00:00 2001
From: Clinton Ebadi <clinton@unknownlamer.org>
Date: Tue, 17 May 2011 19:48:26 -0400
Subject: [PATCH] Support `:activate ((DESC . SPECIAL-INITARGS))' in attributes
 * Remove duplicate code in `display-attribute' too

---
 src/display.lisp                 | 21 +++++++++++++++++----
 src/standard-descriptions/t.lisp |  7 ++++---
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/src/display.lisp b/src/display.lisp
index d04a131..e502b85 100644
--- a/src/display.lisp
+++ b/src/display.lisp
@@ -15,22 +15,35 @@
     (setf context (remove-layer (find-description d)
 				context)))
   (dolist (d activate context)
-    (setf context (adjoin-layer (find-description d)
+    (setf context (adjoin-layer (find-description (if (consp d) (car d) d))
 				context))))
 
 (defun funcall-with-attribute-context (attribute thunk)
   (funcall-with-layer-context 
-   (modify-layer-context (current-layer-context) 
+   (modify-layer-context (current-layer-context)
 			 :activate (attribute-active-descriptions attribute)
 			 :deactivate (attribute-inactive-descriptions attribute))
-   thunk))
+   (lambda ()
+     (with-special-symbol-access
+       (contextl::funcall-with-special-initargs
+	(mappend (lambda (desc)
+		   (when (consp desc)
+		     (let ((description (find-description (car desc))))
+		       (loop 
+			  :for (key val) :on (cdr desc) :by #'cddr
+			  :collect (list (find key (description-attributes description) 
+					       :key #'attribute-keyword)
+				  :value val)))))
+		 (attribute-active-descriptions attribute))
+	(lambda ()
+	  (without-special-symbol-access
+	    (funcall thunk))))))))
 
 (defmacro with-attribute-context ((attribute) &body body)
   `(funcall-with-attribute-context ,attribute (lambda () ,@body)))
   
   
 (defun display (display object &rest args &key deactivate activate &allow-other-keys)
-
   (funcall-with-layer-context 
    (modify-layer-context (current-layer-context) 
 			 :activate activate 
diff --git a/src/standard-descriptions/t.lisp b/src/standard-descriptions/t.lisp
index 3256903..bc2c367 100644
--- a/src/standard-descriptions/t.lisp
+++ b/src/standard-descriptions/t.lisp
@@ -87,9 +87,10 @@
     (display-attribute-label attribute))
   (display-attribute-value attribute))
 
-(define-layered-method display-attribute :around
-  ((attribute standard-attribute))
-    (funcall-with-layer-context 
+(define-layered-method display-attribute :around ((attribute standard-attribute))
+  (with-attribute-context (attribute)
+    (call-next-method))
+    #+nil(funcall-with-layer-context 
    (modify-layer-context (current-layer-context) 
 			 :activate (attribute-active-descriptions attribute)
 			 :deactivate (attribute-inactive-descriptions attribute))
-- 
2.20.1