Class: ThumbnailHoverEffect::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/thumbnail_hover_effect/image.rb

Constant Summary collapse

IMAGE_NOT_FOUND =

image use if such is not specified

'/assets/no-image-found.jpg'
IMAGE_DEMO = 
'/assets/demo/demo.jpg'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parameters = {}) ⇒ Image

validating input parameters and using defaults if necessary



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# File 'lib/thumbnail_hover_effect/image.rb', line 14

def initialize(parameters = {})
  # demo mode
  if parameters.empty?
    parameters = {
        url: IMAGE_DEMO,
        attributes:{likes:'224', dislikes: '2', url:'#'}
    }
  end

  @url = parameters.fetch(:url, IMAGE_NOT_FOUND)
  @attributes = parameters.fetch(:attributes, {})

  @url = IMAGE_NOT_FOUND unless File.extname(@url) =~/^(.png|.gif|.jpg|.jpeg|.bmp)$/
  @attributes = {} unless @attributes.is_a?(Hash)

end

Instance Attribute Details

#attributes ⇒ Object

class attributes



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# File 'lib/thumbnail_hover_effect/image.rb', line 10

def attributes
  @attributes
end

#url ⇒ Object

class attributes



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# File 'lib/thumbnail_hover_effect/image.rb', line 10

def url
  @url
end

Instance Method Details

#get_template(effect_number) ⇒ Object

returns the html template



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# File 'lib/thumbnail_hover_effect/image.rb', line 53

def get_template(effect_number)
  "
  <div class=\"view-image effect0#{1 unless effect_number}\">
    <div>
    <span class=\"icon-emo-happy\">##title##</span>
    <span class=\"icon-emo-happy\">##description##</span>
    <a href=\"##url##\"><span aria-hidden=\"true\" class=\"icon-emo-happy\"></span></a>
    </div>
    <div class=\"slice\" style=\"background-image: url(##url##);\">
      <span class=\"overlay\"></span>
      <div class=\"slice\" style=\"background-image: url(##url##);\">
        <span class=\"overlay\"></span>
        <div class=\"slice\" style=\"background-image: url(##url##);\">
          <span class=\"overlay\"></span>
          <div class=\"slice\" style=\"background-image: url(##url##);\">
            <span class=\"overlay\"></span>
            <div class=\"slice\" style=\"background-image: url(##url##);\">
              <span class=\"overlay\"></span>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  "
end

#render(parameters = {}) ⇒ Object

rendering image with thumbnail effect applied



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# File 'lib/thumbnail_hover_effect/image.rb', line 37

def render(parameters = {})

  has_thumbnail = parameters.fetch(:has_thumbnail, true)
  effect_number = parameters.fetch(:effect_number, false)
  thumbnail_template = self.get_template(effect_number)


  if has_thumbnail
    @attributes.map { |key, value| thumbnail_template["###{key}##"] &&= value }
    thumbnail_template.gsub!('##url##', @url).html_safe
  else
    self.to_s.html_safe
  end
end

#to_s ⇒ Object

rendering image without thumbnail effect



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# File 'lib/thumbnail_hover_effect/image.rb', line 32

def to_s
  "<img src=#{@url} #{@attributes.map{|key,value| "data-#{key}=#{value}" }.join(' ')}/>"
end