Class: Octopress::Tags::ImageCaptionTag::Tag

Inherits:
Liquid::Tag
  • Object
show all
Includes:
ImageCaptionFunctions
Defined in:
lib/octopress-image-caption-tag.rb

Instance Method Summary collapse

Methods included from ImageCaptionFunctions

#absolute_sized_figure, #em_sized_figure, #parse_sizes, #parse_title, #relative_sized_figure

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ Tag

Returns a new instance of Tag.



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# File 'lib/octopress-image-caption-tag.rb', line 84

def initialize(tag_name, markup, tokens)
  if %r{(?<classname>\S.*\s+)?(?<protocol>https?://|/)(?<url>\S+)(?<sizes>\s+\d+(\.\d+)?%?(em)?\s+\d+(\.\d+)?%?(em)?)?(?<title>\s+.+)?} =~ markup
    @class = classname || 'center'
    @img = "#{protocol}#{url}"
    @title = title.strip if title
    parse_sizes(sizes)
    parse_title(@title)
  end
  super
end

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/octopress-image-caption-tag.rb', line 95

def render(context)
  super
  @caption = @title
  if @img && @width[-1] == '%' # Relative width, so width goes on outer span
    relative_sized_figure
  elsif @img && @width[-2..-1] == 'em' # Absolute size in ems
    em_sized_figure
  elsif @img # Absolute width, so width goes on the img tag and text span gets sytle-width:@width-15;
    absolute_sized_figure
  else
    'Error processing input, expected syntax: {% imgcap [class name(s)] /url/to/image [width height] [title [alt]] %}'
  end
end