Module: Ayril::XMLNode::NodeManipulation

Included in:
Ayril::XMLDTD, Ayril::XMLDTDNode, Ayril::XMLDocument, Ayril::XMLElement, Ayril::XMLNode
Defined in:
lib/ayril/xml_node/node_manipulation.rb

Instance Method Summary collapse

Instance Method Details

#clean_whitespace ⇒ Object

Clean the whitespace of the node, i.e. remove all of its children text nodes that contain only whitespace.



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# File 'lib/ayril/xml_node/node_manipulation.rb', line 54

def clean_whitespace
  node = self.childAtIndex 0
  while node
    next_node = node.nextSibling
    node.remove if node.kind == NSXMLTextKind and node.stringValue =~ /\S/
    node = next_node
  end
  self
end

#inner_html ⇒ Object 



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# File 'lib/ayril/xml_node/node_manipulation.rb', line 70

def inner_html; self.children.invoke(:XMLString).join end

#remove ⇒ Object

Removes node from parent and return the removed node itself.



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# File 'lib/ayril/xml_node/node_manipulation.rb', line 25

def remove
  self.tap { |e| e.parent.removeChildAtIndex e.index }
end

#replace(content) ⇒ Object Also known as: swap

Replaces a node with another node and returns the old node.



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# File 'lib/ayril/xml_node/node_manipulation.rb', line 45

def replace(content)
  content = content.to_elem if content.respond_to? :to_elem
  self.parent.replaceChildAtIndex self.index, withNode: content
  self
end

#update(content = '') ⇒ Object

Updates the content of node. If passed nothing or a blank string, the children are cleared. If passed a string, the string is parsed into element(s). Passing an element or an array of elements is good. All elements are first detached if possible.



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# File 'lib/ayril/xml_node/node_manipulation.rb', line 33

def update(content='')
  if content == ''; children = nil
  elsif content.respond_to? :to_s
    children = XMLElement.alloc.initWithXMLString("<r>#{content}</r>", 
      error: nil).children
  elsif content.kind_of? XMLElement; children = [content]
  end
  children.each { |child| child.detach } if not children.nil?
  self.setChildren children
end