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Size: 1.1 KB
Versions: 6
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Contents
#
# BlockHelper
# Template level helper.
# Base class for DSL magic in view helpers.
#
module Aerogel::Render
class BlockHelper
# Creates a block helper object.
# args will be passed to the block as arguments.
#
def initialize( *args, &block )
@args = args
@block = block
# makes methods and helpers accessible at the self instance scope
@self_before_instance_eval = eval "self", @block.binding
end
# Wraps captured content with custom tags or text.
# Most of the time, method should be redefined by descendant class.
# A good example would be a form helper, that surrounds captured content with <form ..></form> tags.
#
def wrap( content )
content
end
# Renders output to the template or returns it as a string.
#
def render
content = output_capture(@block) do
instance_exec( *@args, &@block )
end
content_wrapped = output_capture() { wrap( content ) }
output_concat content_wrapped
end
def method_missing(method, *args, &block)
@self_before_instance_eval.send method, *args, &block
end
end # class BlockHelper
end # module Aerogel::Render
Version data entries
6 entries across 6 versions & 1 rubygems