74 lines
2 KiB
Ruby
74 lines
2 KiB
Ruby
module OpenGraphHelper
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def og_title(post)
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meta_tag_with_property('og:title', post_page_title(post, :length => 140))
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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(post)
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meta_tag_with_property('og:url', post_url(post))
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end
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def og_image(post)
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tags = post.photos.map{|x| meta_tag_with_property('og:image', x.url(:thumb_large))}
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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_site_name
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meta_tag_with_property('og:site_name', 'Diaspora*')
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end
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def og_description(post)
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meta_tag_with_property('og:description', post_page_title(post, :length => 1000))
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end
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def og_type
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meta_tag_with_property('og:type', og_namespace('frame'))
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end
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def og_namespace(object)
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namespace = AppConfig.services.facebook.open_graph_namespace.present? ? AppConfig.services.facebook.open_graph_namespace : 'joindiaspora'
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"#{namespace}:frame"
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end
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def og_page_specific_tags(post)
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[og_title(post), og_type,
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og_url(post), og_image(post),
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og_description(post)].join(' ').html_safe
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end
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def meta_tag_with_property(name, content)
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content_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>#{cache.description}</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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