Class: Utopia::Content::Transaction::State

Inherits:
Object
  • Object
show all
Defined in:
lib/utopia/content/transaction.rb

Overview

The state of a single tag being rendered within a Transaction instance.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tag, node, attributes = tag.to_hash) ⇒ State

Returns a new instance of State.



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# File 'lib/utopia/content/transaction.rb', line 207

def initialize(tag, node, attributes = tag.to_hash)
	@node = node

	@buffer = StringIO.new
	@overrides = {}

	@tags = []
	@attributes = attributes

	@content = nil
	@deferred = []
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/utopia/content/transaction.rb', line 220

def attributes
  @attributes
end

#content ⇒ Object (readonly)

Returns the value of attribute content.



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# File 'lib/utopia/content/transaction.rb', line 222

def content
  @content
end

#deferred ⇒ Object (readonly)

Returns the value of attribute deferred.



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# File 'lib/utopia/content/transaction.rb', line 226

def deferred
  @deferred
end

#node ⇒ Object (readonly)

Returns the value of attribute node.



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# File 'lib/utopia/content/transaction.rb', line 223

def node
  @node
end

#overrides ⇒ Object (readonly)

Returns the value of attribute overrides.



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# File 'lib/utopia/content/transaction.rb', line 221

def overrides
  @overrides
end

#tags ⇒ Object (readonly)

Returns the value of attribute tags.



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# File 'lib/utopia/content/transaction.rb', line 224

def tags
  @tags
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 234

def [](key)
	@attributes[key]
end

#call(transaction) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 252

def call(transaction)
	@content = @buffer.string
	@buffer = StringIO.new
	
	if node.respond_to? :call
		node.call(transaction, self)
	else
		transaction.parse_markup(@content)
	end
	
	return @buffer.string
end

#cdata(text) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 265

def cdata(text)
	@buffer.write(text)
end

#defer(value = nil, &block) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 228

def defer(value = nil, &block)
	@deferred << block
	
	Tag.closed(DEFERRED_TAG_NAME, :id => @deferred.size - 1).to_html
end

#lookup(tag) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 238

def lookup(tag)
	if override = @overrides[tag.name]
		if override.respond_to? :call
			return override.call(tag)
		elsif String === override
			return Tag.new(override, tag.attributes)
		else
			return override
		end
	else
		return tag
	end
end

#markup(text) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 269

def markup(text)
	cdata(text)
end

#tag_begin(tag) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 277

def tag_begin(tag)
	@tags << tag
	tag.write_open_html(@buffer)
end

#tag_complete(tag) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 273

def tag_complete(tag)
	tag.write_full_html(@buffer)
end

#tag_end(tag) ⇒ Object 



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# File 'lib/utopia/content/transaction.rb', line 282

def tag_end(tag)
	raise UnbalancedTagError(tag) unless @tags.pop.name == tag.name

	tag.write_close_html(@buffer)
end