105 lines
2.5 KiB
Ruby
105 lines
2.5 KiB
Ruby
module OpenGraphHelper
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def og_title(title)
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meta_tag_with_property('og:title', title)
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end
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def og_type(post)
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meta_tag_with_property('og:type', 'article')
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end
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def og_url(url)
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meta_tag_with_property('og:url', url)
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end
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def og_image(post=nil)
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tags = []
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tags = post.photos.map{|x| meta_tag_with_property('og:image', x.url(:thumb_large))} if post
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tags << meta_tag_with_property('og:image', default_image_url) if tags.empty?
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tags.join(' ')
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end
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def og_description(description)
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meta_tag_with_property('og:description', description)
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end
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def og_type(type='website')
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meta_tag_with_property('og:type', type)
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end
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def og_namespace
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AppConfig.services.facebook.open_graph_namespace
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end
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def og_site_name
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meta_tag_with_property('og:site_name', AppConfig.settings.pod_name)
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end
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def og_common_tags
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[og_site_name]
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end
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def og_general_tags
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[
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*og_common_tags,
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og_type,
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og_title('diaspora* social network'),
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og_image,
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og_url(AppConfig.environment.url),
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og_description('diaspora* is the online social world where you are in control.')
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].join("\n").html_safe
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end
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def og_page_post_tags(post)
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tags = og_common_tags
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if post.message
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tags.concat [
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*tags,
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og_type("#{og_namespace}:frame"),
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og_title(post_page_title(post, :length => 140)),
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og_url(post_url(post)),
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og_image(post),
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og_description(post.message.plain_text_without_markdown truncate: 1000)
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]
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end
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tags.join("\n").html_safe
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end
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def og_prefix
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"og: http://ogp.me/ns# #{og_namespace}: https://diasporafoundation.org/ns/joindiaspora#"
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end
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def meta_tag_with_property(name, content)
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tag(:meta, :property => name, :content => content)
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end
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def og_html(cache)
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"<a href=\"#{cache.url}\" target=\"_blank\">" +
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" <div>" +
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" <img src=\"#{cache.image}\" />" +
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" <strong>#{cache.title}</strong>" +
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" <p>#{truncate(cache.description, length: 250, separator: ' ')}</p>" +
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" </div>" +
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"</a>"
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end
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def link_to_oembed_image(cache, prefix = 'thumbnail_')
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link_to(oembed_image_tag(cache, prefix), cache.url, :target => '_blank')
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end
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def oembed_image_tag(cache, prefix)
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image_tag(cache.data["#{prefix}url"], cache.options_hash(prefix))
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end
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private
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# This method compensates for hosting assets off of s3
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def default_image_url
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if image_path('asterisk.png').include?("http")
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image_path('asterisk.png')
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else
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"#{root_url.chop}#{image_path('asterisk.png')}"
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end
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end
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end
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