+
+ def user_thumbnail(user, options = {})
+ options[:class] ||= "user_thumbnail"
+ options[:alt] ||= ""
+
+ if user.image_use_gravatar
+ user_gravatar_tag(user, options)
+ elsif user.avatar.attached?
+ image_tag user.avatar.variant(:resize => "50x50>"), options
+ else
+ image_tag "avatar_small.png", options
+ end
+ end
+
+ def user_thumbnail_tiny(user, options = {})
+ options[:class] ||= "user_thumbnail_tiny"
+ options[:alt] ||= ""
+
+ if user.image_use_gravatar
+ user_gravatar_tag(user, options)
+ elsif user.avatar.attached?
+ image_tag user.avatar.variant(:resize => "50x50>"), options
+ else
+ image_tag "avatar_small.png", options
+ end
+ end
+
+ def user_image_url(user, options = {})
+ if user.image_use_gravatar
+ user_gravatar_url(user, options)
+ elsif user.avatar.attached?
+ polymorphic_url(user.avatar.variant(:resize => "100x100>"), :host => Settings.server_url)
+ else
+ image_url("avatar_large.png")
+ end
+ end
+
+ # External authentication support
+
+ def openid_logo
+ image_tag "openid_small.png", :alt => t("users.login.openid_logo_alt"), :class => "openid_logo"
+ end
+
+ def auth_button(name, provider, options = {})
+ link_to(
+ image_tag("#{name}.png", :alt => t("users.login.auth_providers.#{name}.alt")),
+ auth_path(options.merge(:provider => provider)),
+ :class => "auth_button",
+ :title => t("users.login.auth_providers.#{name}.title")
+ )
+ end
+
+ private
+
+ # Gravatar support
+
+ # See http://en.gravatar.com/site/implement/images/ for details.
+ def user_gravatar_url(user, options = {})
+ size = options[:size] || 100
+ hash = Digest::MD5.hexdigest(user.email.downcase)
+ default_image_url = image_url("avatar_large.png")
+ "#{request.protocol}www.gravatar.com/avatar/#{hash}.jpg?s=#{size}&d=#{u(default_image_url)}"
+ end
+
+ def user_gravatar_tag(user, options = {})
+ url = user_gravatar_url(user, options)
+ options.delete(:size)
+ image_tag url, options
+ end