Class: Roda::Component::DOM

Inherits:
Object show all
Defined in:
lib/roda/component/dom.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(html) ⇒ DOM

Returns a new instance of DOM.



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# File 'lib/roda/component/dom.rb', line 8

def initialize html
  @raw_html = html

  if server?
    @dom = raw_html.is_a?(String) ? Component::HTML(raw_html.dup): raw_html
  else
    @dom = raw_html.is_a?(String) ? Element[raw_html.dup] : raw_html
  end

  # super @dom
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object

This allows you to use all the nokogiri or opal jquery methods if a global one isn’t set



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# File 'lib/roda/component/dom.rb', line 118

def method_missing method, *args, &block
  # respond_to?(symbol, include_all=false)
  if dom.respond_to? method, true
    dom.send method, *args, &block
  else
    super
  end
end

Instance Attribute Details

#dom ⇒ Object

Returns the value of attribute dom.



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# File 'lib/roda/component/dom.rb', line 6

def dom
  @dom
end

#raw_html ⇒ Object

Returns the value of attribute raw_html.



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# File 'lib/roda/component/dom.rb', line 6

def raw_html
  @raw_html
end

Instance Method Details

#add_class(classes) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 57

def add_class classes
  classes = (classes || '').split ' ' unless classes.is_a? Array
  new_classes =  ((node.attr('class') || '').split(' ') << classes).uniq.join(' ')
  node['class'] = new_classes
end

#attr(key, value = false) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 68

def attr key, value = false
  if value
    value = value.join ' ' if value.is_a? Array
    node[key] = value
  else
    super key
  end
end

#data(key = false, value = false) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 41

def data key = false, value = false
  d = Hash[node.xpath("@*[starts-with(name(), 'data-')]").map{|a| [a.name, a.value]}]

  if !key
    d
  elsif key && !value
    d[key]
  else
    node["data-#{key}"] = value
  end
end

#find(string, &block) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 20

def find string, &block
  if client?
    node = DOM.new dom.find(string)
  elsif server?
    if block_given?
      node = DOM.new dom.css(string)
    else
      node = DOM.new dom.at(string)
    end
  end

  if block_given?
    node.each_with_index do |n, i|
      block.call DOM.new(n), i
    end
  end

  node
end

#html(content = false) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 100

def html content = false
  if !content
    if server?
      node.inner_html
    else
      node ? node.html : dom.html
    end
  else
    self.html = content
  end
end

#html=(content) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 78

def html= content
  if server?
    node.inner_html = content
  else
    content = content.dom if content.is_a? Roda::Component::DOM
    node.html content
  end

  node
end

#node ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 112

def node
  @node || dom
end

#remove_class(classes) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 63

def remove_class classes
  classes = (classes || '').split ' ' unless classes.is_a? Array
  (node.attr('class') || '').split(' ').reject { |n| n =~ /active|asc|desc/i }.join(' ')
end

#val(value) ⇒ Object 



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# File 'lib/roda/component/dom.rb', line 53

def val value
  node.content = value
end