Contents

module Storefront
  module ImageHelper
    def image_tag(source, options = {})
      options.symbolize_keys!

      src = options[:src] = path_to_image(source)

      unless src =~ /^cid:/
        options[:alt] = options.fetch(:alt) { File.basename(src, '.*').gsub(/-\d+$/, "").gsub("-", " ").humanize }
      end

      if size = options.delete(:size)
        options[:width], options[:height] = size.split("x") if size =~ %{^\d+x\d+$}
      end
      
      if mouseover = options.delete(:mouseover)
        options[:onmouseover] = "this.src='#{path_to_image(mouseover)}'"
        options[:onmouseout]  = "this.src='#{src}'"
      end

      tag("img", options)
    end

    def load_logo(parent, size = "small", link = nil, lightbox = true)
      if parent && parent.logo_id.present?
        path = parent.logo.url(size.to_s) rescue nil
      end

      if path.blank?
        path  = "/images/vendors/no-logo.png"
        alt   = "No logo"
      else
        alt   = "Logo for #{parent.is_a?(::Group) ? parent.name : parent.vendor_name}"
      end

      if parent && parent.logo
        path << "?#{parent.logo.updated_at.to_i}"
      end
      if link
        # , :width => 74, :height => 74
        clazz = lightbox == true ? 'fancy-ajax logo' : 'logo'
        link_to [content_tag(:span), image_tag(path, :class =>  "photo", :alt => alt, :title => alt)].join("").html_safe, link, :class => clazz, :"data-deal-id" => parent.id, :"data-ajax" => "false"
      else
        image_tag(path)
      end
    end

    # http://snippets.dzone.com/posts/show/805
    def read_image_size(path)
      width, height = IO.read("#{Rails.root}/public/images/#{path}")[0x10..0x18].unpack('NN')
      {:width => width, :height => height}
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
storefront-0.2.1	lib/storefront/helpers/image_helper.rb
storefront-0.2.0	lib/storefront/helpers/image_helper.rb