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Diffstat (limited to 'app/helpers/haml_helper.rb')
| -rw-r--r-- | app/helpers/haml_helper.rb | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/app/helpers/haml_helper.rb b/app/helpers/haml_helper.rb new file mode 100644 index 0000000..dae0149 --- /dev/null +++ b/app/helpers/haml_helper.rb @@ -0,0 +1,54 @@ +require 'pathname' + +module HamlHelper + + # + # acts like haml_tag, capture_haml, or haml_concat, depending on how it is called. + # + # two or more args --> like haml_tag + # one arg and a block --> like haml_tag + # zero args and a block --> like capture_haml + # one arg and no block --> like haml_concat + # + # additionally, we allow the use of more than one class. + # + # some examples of these usages: + # + # def display_robot(robot) + # haml do # like capture_haml + # haml '.head', robot.head_html # like haml_tag + # haml '.head' do # same + # haml robot.head_html + # end + # haml '.body.metal', robot.body_html # like haml_tag, but with multiple classes + # haml '<a href="/x">link</a>' # like haml_concat + # end + # end + # + # wrapping the helper in a capture_haml call is very useful, because then + # the helper can be used wherever a normal helper would be. + # + def haml(name=nil, *args, &block) + if name + if args.empty? and block.nil? + haml_concat name + else + if name =~ /^(.*?\.[^\.]*)(\..*)$/ + # allow chaining of classes if there are multiple '.' in the first arg + name = $1 + classes = $2.gsub('.',' ') + hsh = args.detect{|i| i.is_a?(Hash)} + unless hsh + hsh = {} + args << hsh + end + hsh[:class] = classes + end + haml_tag(name, *args, &block) + end + else + capture_haml(&block) + end + end + +end
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