Module: Sinatra::Ratpack

Defined in:
lib/sinatra/ratpack.rb

Instance Method Summary collapse

Instance Method Details

#content_tag(name, content, options = {}) ⇒ Object

Just like Rails’ content_tag

content_tag :div, "hello", :id => "foo"     # <div id="foo">hello</div>



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# File 'lib/sinatra/ratpack.rb', line 73

def content_tag(name,content,options={})
  "<#{name} #{options.to_html_attrs}>#{content}</#{name}>"
end

#image_tag(src, options = {}) ⇒ Object

Accepts a full URL, an image filename, or a path underneath /public/images/

image_tag "pony.png"                        # <image src="/images/pony.png" />
image_tag "http://foo.com/pony.png"         # <image src="http://foo.com/pony.png" />



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# File 'lib/sinatra/ratpack.rb', line 53

def image_tag(src, options={})
  src = "/images/#{src}" unless src.include? "://" # Add images directory to path if not a full URL
  options[:src] = url_for(src)
  tag(:img, options)
end

#javascript_include_tag(string_or_array, *args) ⇒ Object

Accepts a single filename or an array of filenames (with or without .js extension) Assumes javascripts are in public/javascripts

javascript_include_tag "jquery.min"               # <script charset="utf-8" src="/javascripts/jquery.min.js" type="text/javascript"></script>
javascript_include_tag "jquery.min.js"            # <script charset="utf-8" src="/javascripts/jquery.min.js" type="text/javascript"></script>
javascript_include_tag %w(day night)              # <script charset="utf-8" src="/javascripts/day.js" type="text/javascript"></script>\n<script charset="utf-8" src="/javascripts/night.js" type="text/javascript"></script>



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# File 'lib/sinatra/ratpack.rb', line 12

def javascript_include_tag(string_or_array, *args)
  files = string_or_array.is_a?(Array) ? string_or_array : [string_or_array]
  options = {
    :charset => "utf-8",
    :type => "text/javascript",
  }.merge(args.extract_options!)

  files.map do |file|
    path = "#{ file.gsub(/\.js/i, "") }.js" # Append .js if needed
    path = "/javascripts/#{path}" unless path.include? "://" # Add stylesheets directory to path if not a full URL
    options[:src] = url_for(path)
    content_tag(:script, "", options)
  end.join("\n")
end

#link_to(content, href = nil, options = {}) ⇒ Object

Works like link_to, but href is optional. If no href supplied, content is used as href

link_to "grub", "/food", :class => "eats"   # <a href="/food" class="eats">grub</a>
link_to "http://foo.com"                    # <a href="http://foo.com">http://foo.com</a>
link_to "home"                              # <a href="/home">home</a>



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# File 'lib/sinatra/ratpack.rb', line 64

def link_to(content,href=nil,options={})
  href ||= content
  options.update :href => url_for(href)
  content_tag :a, content, options
end

#stylesheet_link_tag(string_or_array, *args) ⇒ Object

Accepts a single filename or an array of filenames (with or without .css extension) Assumes stylesheets are in public/stylesheets

stylesheet_link_tag "styles", :media => "print"   # <link charset="utf-8" href="/stylesheets/styles.css" media="print" rel="stylesheet" type="text/css" />
stylesheet_link_tag %w(winter summer)             # <link charset="utf-8" href="/stylesheets/winter.css" media="projection" rel="stylesheet" type="text/css" />\n<link charset="utf-8" href="/stylesheets/summer.css" media="projection" rel="stylesheet" type="text/css" />



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# File 'lib/sinatra/ratpack.rb', line 32

def stylesheet_link_tag(string_or_array, *args)
  files = string_or_array.is_a?(Array) ? string_or_array : [string_or_array]
  options = {
    :charset => "utf-8",
    :media => "screen, projection",
    :rel => "stylesheet",
    :type => "text/css",
  }.merge(args.extract_options!)

  files.map do |file|
    path = "#{ file.gsub(/\.css/i, "") }.css" # Append .css if needed
    path = "/stylesheets/#{path}" unless path.include? "://" # Add stylesheets directory to path if not a full URL
    options[:href] = url_for(path)
    tag(:link, options)        
  end.join("\n")
end

#tag(name, options = {}) ⇒ Object

Just like Rails’ tag

tag :br, :class => "foo"                    # <br class="foo" />



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# File 'lib/sinatra/ratpack.rb', line 80

def tag(name,options={})
  "<#{name} #{options.to_html_attrs} />"
end

#url_for(url_fragment, mode = :path_only) ⇒ Object

Construct a link to url_fragment, which should be given relative to the base of this Sinatra app. The mode should be either :path_only, which will generate an absolute path within the current domain (the default), or :full, which will include the site name and port number. (The latter is typically necessary for links in RSS feeds.) Example usage:

url_for "/"                                 # "/myapp/"
url_for "/foo"                              # "/myapp/foo"
url_for "/foo", :full                       # "http://example.com/myapp/foo"
url_for "http://bar.com"                    # "http://bar.com"



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# File 'lib/sinatra/ratpack.rb', line 95

def url_for url_fragment, mode=:path_only
  return url_fragment if url_fragment.include? "://"
  url_fragment = "/#{url_fragment}" unless url_fragment.starts_with? "/"
  case mode
  when :path_only
    base = request.script_name
  when :full
    scheme = request.scheme
    if (scheme == 'http' && request.port == 80 ||
        scheme == 'https' && request.port == 443)
      port = ""
    else
      port = ":#{request.port}"
    end
    base = "#{scheme}://#{request.host}#{port}#{request.script_name}"
  else
    raise TypeError, "Unknown url_for mode #{mode}"
  end
  "#{base}#{url_fragment}"
end