Class: Volt::ComponentNode

Inherits:
BaseNode show all
Includes:
Eventable
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 Eventable

#on, #remove_listener, #trigger!

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 14

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 12

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 12

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 12

def parent
  @parent
end

Instance Method Details

#<<(node) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 64

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

#changed! ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 21

def changed!
  if @root
    @root.changed!
  else
    trigger!('changed')
  end
end

#find_by_binding_id(binding_id) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 77

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

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

  nil
end

#html=(html) ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 33

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

  changed!
end

#inspect ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 111

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 92

def remove
  @nodes = []

  # puts "Component Node Removed"
  changed!

  # @binding_id = nil
end

#remove_anchors ⇒ Object 



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# File 'lib/volt/page/targets/binding_document/component_node.rb', line 101

def remove_anchors
  fail 'not implemented'

  @parent.nodes.delete(self)

  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 29

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 68

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

  str.join('')
end