Class: JekyllIS::Images::Kramdown::Figure

Inherits:
Value
  • Object
show all
Defined in:
lib/jekyll-is/images/kramdown/figure.rb

Constant Summary collapse

MODES = 
{
  'grid' => {
    child: 'cell',
    label: 'grid',
    display: 'grid',
    navbar: false
  },
  'slides' => {
    child: 'slide',
    label: 'slides',
    display: 'flex',
    navbar: true
  }
}

Instance Attribute Summary collapse

Attributes inherited from Value

#attrs, #classes, #context, #flags, #id, #styles

Instance Method Summary collapse

Methods inherited from Value

#to_kramdown, #to_latex

Constructor Details

#initialize(context) ⇒ Figure

Returns a new instance of Figure.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 12

def initialize context
  super(context)
  @children = []
end

Instance Attribute Details

#caption ⇒ Object (readonly)

Returns the value of attribute caption.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 25

def caption
  @caption
end

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 10

def children
  @children
end

#modes ⇒ Object (readonly)

Returns the value of attribute modes.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 25

def modes
  @modes
end

#shaped ⇒ Object (readonly)

Returns the value of attribute shaped.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 25

def shaped
  @shaped
end

#shift ⇒ Object (readonly)

Returns the value of attribute shift.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 25

def shift
  @shift
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 25

def width
  @width
end

Instance Method Details

#apply(element) ⇒ Object 



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 27

def apply element
  super(element)
  @id ||= gen_id
  @caption = @attrs.delete('caption')
  @caption_position = @attrs.delete('caption-position')
  @shift = @attrs.delete('shift')&.to_i
  @up = @attrs.delete('up')&.to_i
  @width = @attrs.delete('width')&.to_i
  @modes = @attrs.delete('modes')&.split(',')&.map(&:strip) || @context.config('gallery', 'modes')&.split(',') || []
  element.children.each do |child|
    if [ :a, :img ].include?(child.type)
      image = JekyllIS::Images::Kramdown::Image::new @context, figure: self
      image.apply child
      @children << image
    end
  end

  if single?
    image = @children.first
    @caption ||= image.caption
    @caption_position ||= image.caption_position
    @attrs = image.attrs.merge(@attrs)
    # «Крадём» классы и флаги.
    @flags.merge image.flags
    image.flags.clear
    @classes.merge image.classes
    image.classes.clear
    @shaped = @flags.delete?('shape')
    @shift ||= image.shift
    @up ||= image.up
    @width ||= image.width
  end

  if gallery?
    @caption_position ||= @context.config('gallery', 'caption_position')
  else
    @caption_position ||= @context.config('caption_position')
  end

  if @children.size == 0
    @context.error "Invalid figure (without images) on page #{ @context.page.relative_path.inspect }"
  end
  if @children.size > 1 && @modes.empty?
    @context.error "Invalid gallery (without modes) on page #{ @context.page.relative_path.inspect }"
  end
end

#category ⇒ Object 



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 8

def category = :block

#gallery? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 21

def gallery?
  @children.size > 1
end

#single? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 17

def single?
  @children.size == 1
end

#to_html ⇒ Object

TODO: Подумать над тем, чтобы вынести разные представления галерей в классы...



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 92

def to_html
  case @children.size
  when 0
    @context.error "Invalid figure (without images) on page #{ @context.page.relative_path.inspect }"
    ''
  when 1
    generate_simple_html
  else
    if @modes.empty?
      @context.error "Invalid gallery (without modes) on page #{ @context.page.relative_path.inspect }"
      ''
    else
      @context.page.data['__is_images_has_galleries'] = true
      hide = false
      gallery = @modes.map do |mode|
        item = generate_gallery_html(mode, hide)
        hide = true
        item
      end.join("\n")
      generate_outer_html gallery
    end
  end
end

#type ⇒ Object 



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# File 'lib/jekyll-is/images/kramdown/figure.rb', line 7

def type = :is_figure