Module: ViewFu::TagHelper

Defined in:
lib/view_fu/tag_helper.rb

Instance Method Summary collapse

Instance Method Details

#add_class(css_class, options = {}) ⇒ Object

provides a slick way to add classes inside haml attribute collections

examples:

%div{add_class("current")}
#=> adds the "current" class to the div

%div{add_class("current", :if => current?)}
#=> adds the "current" class to the div if current? method

%div{add_class("highlight", :unless => logged_in?)}
#=> adds the "highlight" class to the div unless logged_in? method returns true



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# File 'lib/view_fu/tag_helper.rb', line 57

def add_class(css_class, options = {})
  return {} unless css_class

  attributes = {:class => css_class}

  if options.has_key?(:unless)
    return options[:unless] ? {} : attributes
  end

  if options.has_key?(:if)
    return options[:if] ? attributes : {}
  end

  attributes
end

#add_class_if(css_class, condition) ⇒ Object 



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# File 'lib/view_fu/tag_helper.rb', line 73

def add_class_if(css_class, condition)
  add_class(css_class, :if => condition)
end

#add_class_unless(css_class, condition) ⇒ Object 



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# File 'lib/view_fu/tag_helper.rb', line 77

def add_class_unless(css_class, condition)
  add_class(css_class, :unless => condition)
end

#anchor(anchor_name, options = {}) ⇒ Object

Writes an anchor tag



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# File 'lib/view_fu/tag_helper.rb', line 19

def anchor(anchor_name, options = {})
  content_tag(:a, "", options.merge(:name => anchor_name))
end

#br ⇒ Object

Writes a br tag



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# File 'lib/view_fu/tag_helper.rb', line 4

def br
  "<br />".html_safe
end

#clear(direction = nil) ⇒ Object

Writes a clear div tag



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# File 'lib/view_fu/tag_helper.rb', line 37

def clear(direction = nil)
  clear_tag(:div, direction)
end

#clear_tag(tag, direction = nil) ⇒ Object

Writes a clear tag



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# File 'lib/view_fu/tag_helper.rb', line 24

def clear_tag(tag, direction = nil)
  if tag == :br
    "<br class=\"clear#{direction}\" />".html_safe
  else
    "<#{tag} class=\"clear#{direction}\"></#{tag}>".html_safe
  end
end

#clearbit_icon(icon, color, options = {}) ⇒ Object

clearbit icons



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# File 'lib/view_fu/tag_helper.rb', line 130

def clearbit_icon(icon, color, options = {})
  image_tag "clearbits/#{icon}.gif", {:class => "clearbits #{color}", :alt => icon}.merge(options)
end

#current_year ⇒ Object 



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# File 'lib/view_fu/tag_helper.rb', line 32

def current_year
  Time.now.strftime("%Y")
end

#delete_link(*args) ⇒ Object

Wrap a delete link



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# File 'lib/view_fu/tag_helper.rb', line 112

def delete_link(*args)
  options = {:method => :delete, :confirm => "Are you sure you want to delete this?"}.merge(extract_options_from_args!(args)||{})
  args << options
  link_to(*args)
end

#hide(options = {}) ⇒ Object Also known as: hidden

Return a hidden attribute hash (useful in Haml tags - %div#hidden)



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# File 'lib/view_fu/tag_helper.rb', line 82

def hide(options = {})
  attributes = {:style => "display:none"}

  if options.has_key?(:unless)
    return options[:unless] ? {} : attributes
  end

  if options.has_key?(:if)
    return options[:if] ? attributes : {}
  end

  attributes
end

#hide_if(condition) ⇒ Object Also known as: hidden_if, show_unless

Return a hidden attribute hash if a condition evaluates to true



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# File 'lib/view_fu/tag_helper.rb', line 98

def hide_if(condition)
  hide(:if => condition)
end

#hide_unless(condition) ⇒ Object Also known as: hidden_unless, show_if

Return a hidden attribute hash if a condition evaluates to false



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# File 'lib/view_fu/tag_helper.rb', line 105

def hide_unless(condition)
  hide(:unless => condition)
end

#hr ⇒ Object

Writes an hr tag



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# File 'lib/view_fu/tag_helper.rb', line 9

def hr
  "<hr />".html_safe
end

#is_first(i) ⇒ Object

check to see if an index is the first item in a collection



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# File 'lib/view_fu/tag_helper.rb', line 140

def is_first(i)
  i.to_i.zero? ? {:class => "first"} : {}
end

#link_to_block(*args, &block) ⇒ Object

Wrap a block with a link



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# File 'lib/view_fu/tag_helper.rb', line 119

def link_to_block(*args, &block)
  content = capture(&block)
  return link_to(content, *args)
end

#lorem ⇒ Object

Return some lorem text



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# File 'lib/view_fu/tag_helper.rb', line 42

def lorem
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
end

#nbsp ⇒ Object

Writes a nonbreaking space



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# File 'lib/view_fu/tag_helper.rb', line 14

def nbsp
  "&nbsp;".html_safe
end

#pixel(options = {}) ⇒ Object

pixel spacing helper



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# File 'lib/view_fu/tag_helper.rb', line 135

def pixel(options = {})
  image_tag "pixel.png", options
end

#production? ⇒ Boolean

Check if we’re on production environment

Returns:

  • (Boolean) 


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# File 'lib/view_fu/tag_helper.rb', line 125

def production?
  Rails.env.production?
end