Class: ComponentNode

Inherits:
BaseNode show all
Includes:
Events
Defined in:
lib/volt/page/targets/binding_document/component_node.rb

Overview

Component nodes contain an array of both HtmlNodes and ComponentNodes. Instead of providing a full DOM API, component nodes are the branch nodes and html nodes are the leafs. This is all we need to produce the html from templates outside of a normal dom.

Direct Known Subclasses

AttributeTarget

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Events

#event_chain, #has_listeners?, #listeners, #on, #remove_listener, #trigger_by_scope!, #trigger_for_methods!

Constructor Details

#initialize(binding_id = nil, parent = nil, root = nil) ⇒ ComponentNode

Returns a new instance of ComponentNode.



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 12

def initialize(binding_id=nil, parent=nil, root=nil)
  @nodes = []
  @binding_id = binding_id
  @parent = parent
  @root = root
end

Instance Attribute Details

#binding_id ⇒ Object

Returns the value of attribute binding_id.



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 11

def binding_id
  @binding_id
end

#nodes ⇒ Object

Returns the value of attribute nodes.



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 11

def nodes
  @nodes
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 11

def parent
  @parent
end

Instance Method Details

#<<(node) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 62

def <<(node)
  @nodes << node
end

#find_by_binding_id(binding_id) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 75

def find_by_binding_id(binding_id)
  if @binding_id == binding_id
    return self
  end

  @nodes.each do |node|
    if node.cur.is_a?(ComponentNode)
      val = node.find_by_binding_id(binding_id)
      return val if val
    end
  end

  return nil
end

#html=(html) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 31

def html=(html)
  parts = html.split(/(\<\!\-\- \$\/?[0-9]+ \-\-\>)/).reject {|v| v == '' }

  # Clear current nodes
  @nodes = []

  current_node = self

  parts.each do |part|
    case part
    when /\<\!\-\- \$[0-9]+ \-\-\>/
      # Open
      binding_id = part.match(/\<\!\-\- \$([0-9]+) \-\-\>/)[1].to_i

      sub_node = ComponentNode.new(binding_id, current_node, @root || self)
      current_node << sub_node
      current_node = sub_node
    when /\<\!\-\- \$\/[0-9]+ \-\-\>/
      # Close
      # binding_id = part.match(/\<\!\-\- \$\/([0-9]+) \-\-\>/)[1].to_i

      current_node = current_node.parent
    else
      # html string
      current_node << HtmlNode.new(part)
    end
  end

  trigger!('changed')
end

#inspect ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 108

def inspect
  "<ComponentNode:#{@binding_id} #{@nodes.inspect}>"
end

#remove ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 90

def remove
  @nodes = []

  trigger!('changed')

  # @binding_id = nil
end

#remove_anchors ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 98

def remove_anchors
  raise "not implemented"

  @parent.nodes.delete(self)

  trigger!('changed')
  @parent = nil
  @binding_id = nil
end

#text=(text) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 27

def text=(text)
  self.html = text
end

#to_html ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 66

def to_html
  str = []
  @nodes.each do |node|
    str << node.to_html
  end

  return str.join('')
end

#trigger!(*args, &block) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 19

def trigger!(*args, &block)
  if @root
    @root.trigger!(*args, &block)
  else
    super
  end
end