From 3d1b51b4411ffe8de92d997b824637f9eaf47bb1 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sun, 26 Feb 2006 19:47:50 +0000
Subject: Added .rxml (and any non-rhtml template, really) supportfor
 CaptureHelper#content_for and CaptureHelper#capture #3287 [Brian Takita]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3669 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 .../lib/action_view/helpers/capture_helper.rb      | 61 +++++++++++++++++-----
 1 file changed, 49 insertions(+), 12 deletions(-)

(limited to 'actionpack/lib/action_view/helpers/capture_helper.rb')

diff --git a/actionpack/lib/action_view/helpers/capture_helper.rb b/actionpack/lib/action_view/helpers/capture_helper.rb
index 5c1f32a96c..9828fe0fa2 100644
--- a/actionpack/lib/action_view/helpers/capture_helper.rb
+++ b/actionpack/lib/action_view/helpers/capture_helper.rb
@@ -43,24 +43,30 @@ module ActionView
       # instance variable. You can use this instance variable anywhere
       # in your templates and even in your layout. 
       # 
-      # Example:
+      # Example of capture being used in a .rhtml page:
       # 
       #   <% @greeting = capture do %>
       #     Welcome To my shiny new web page!
-      #   <% end %>      
+      #   <% end %>
+      #
+      # Example of capture being used in a .rxml page:
+      # 
+      #   @greeting = capture do
+      #     'Welcome To my shiny new web page!'
+      #   end
       def capture(*args, &block)
         # execute the block
-        buffer = eval("_erbout", block.binding)
-        pos = buffer.length
-        block.call(*args)
+        begin
+          buffer = eval("_erbout", block.binding)
+        rescue
+          buffer = nil
+        end
         
-        # extract the block 
-        data = buffer[pos..-1]
-        
-        # replace it in the original with empty string
-        buffer[pos..-1] = ''
-        
-        data
+        if buffer.nil?
+          capture_block(*args, &block)
+        else
+          capture_erb_with_buffer(buffer, *args, &block)
+        end
       end
       
       # Content_for will store the given block
@@ -84,6 +90,37 @@ module ActionView
       def content_for(name, &block)
         eval "@content_for_#{name} = (@content_for_#{name} || '') + capture(&block)"
       end
+
+      private
+        def capture_block(*args, &block)
+          block.call(*args)
+        end
+      
+        def capture_erb(*args, &block)
+          buffer = eval("_erbout", block.binding)
+          capture_erb_with_buffer(buffer, *args, &block)
+        end
+      
+        def capture_erb_with_buffer(buffer, *args, &block)
+          pos = buffer.length
+          block.call(*args)
+        
+          # extract the block 
+          data = buffer[pos..-1]
+        
+          # replace it in the original with empty string
+          buffer[pos..-1] = ''
+        
+          data
+        end
+      
+        def erb_content_for(name, &block)
+          eval "@content_for_#{name} = (@content_for_#{name} || '') + capture_erb(&block)"
+        end
+      
+        def block_content_for(name, &block)
+          eval "@content_for_#{name} = (@content_for_#{name} || '') + capture_block(&block)"
+        end
     end
   end
 end
-- 
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