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Merge branch 'content-for'

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Konstantin Haase 2011-03-28 16:57:47 +02:00
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sinatra-contrib/LICENSE Normal file
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Copyright (c) 2008-2011 Nicolas Sanguinetti, entp.com, Konstantin Haase
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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sinatra-contrib/lib/sinatra/content_for.rb Normal file
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require 'sinatra/base'
module Sinatra
##
# Small extension for the Sinatra[http://sinatrarb.com] web framework
# that allows you to use the following helpers in your views:
#
# <% content_for :some_key do %>
# <chunk of="html">...</chunk>
# <% end %>
#
# <%= yield_content :some_key %>
#
# This allows you to capture blocks inside views to be rendered later
# in this request. For example, to populate different parts of your
# layout from your view.
#
# When using this with the Haml rendering engine, you should do the
# following:
#
# - content_for :some_key do
# %chunk{ :of => "html" } ...
#
# = yield_content :some_key
#
# == Usage
#
# If you're writing "classic" style apps, then requring
# <tt>sinatra/content_for</tt> should be enough. If you're writing
# "classy" apps, then you also need to call
# <tt>helpers Sinatra::ContentFor</tt> in your app definition.
#
# == And how is this useful?
#
# For example, some of your views might need a few javascript tags and
# stylesheets, but you don't want to force this files in all your pages.
# Then you can put <tt><% yield_content :scripts_and_styles %></tt> on
# your layout, inside the <head> tag, and each view can call
# <tt>content_for</tt> setting the appropriate set of tags that should
# be added to the layout.
#
# == Credits
#
# Code by foca[http://github.com/foca], inspired on the Ruby on Rails
# helpers with the same name. Haml support by mattly[http://github.com/mattly].
module ContentFor
# Capture a block of content to be rendered later. For example:
#
# <% content_for :head do %>
# <script type="text/javascript" src="/foo.js"></script>
# <% end %>
#
# You can call +content_for+ multiple times with the same key
# (in the example +:head+), and when you render the blocks for
# that key all of them will be rendered, in the same order you
# captured them.
#
# Your blocks can also receive values, which are passed to them
# by <tt>yield_content</tt>
def content_for(key, &block)
@current_engine ||= :ruby
content_blocks[key.to_sym] << [@current_engine, block]
end
# Render the captured blocks for a given key. For example:
#
# <head>
# <title>Example</title>
# <%= yield_content :head %>
# </head>
#
# Would render everything you declared with <tt>content_for
# :head</tt> before closing the <tt><head></tt> tag.
#
# You can also pass values to the content blocks by passing them
# as arguments after the key:
#
# <%= yield_content :head, 1, 2 %>
#
# Would pass <tt>1</tt> and <tt>2</tt> to all the blocks registered
# for <tt>:head</tt>.
def yield_content(key, *args)
content_blocks[key.to_sym].map { |e,b| capture(e, args, b) }.join
end
def self.capture(name, template = nil)
@capture ||= {}
@capture[name] = template if template
@capture[name]
end
private
# generated templates will be cached by Sinatra in production
capture :haml, "!= capture_haml(*args, &block)"
capture :erb, "<% yield(*args) %>"
capture :erubis, "<%= yield(*args) %>"
capture :slim, "== yield(*args)"
def capture(engine, args, block)
@_out_buf, buf_was = nil, @_out_buf
eval '_buf.clear if defined? _buf', block.binding
render(engine, Sinatra::ContentFor.capture(engine), {}, :args => args, :block => block, &block)
ensure
@_out_buf = buf_was
end
def render(engine, *)
@current_engine, engine_was = engine.to_sym, @current_engine
super
ensure
@current_engine = engine_was
end
def content_blocks
@content_blocks ||= Hash.new {|h,k| h[k] = [] }
end
end
helpers ContentFor
end

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sinatra-contrib/lib/sinatra/contrib.rb
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register :Decompile
register :Namespace
register :RespondWith
helpers :ContentFor
helpers :LinkHeader
end

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sinatra-contrib/spec/content_for/different_key.erb Normal file
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<% content_for :bar do %>bar<% end %>

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sinatra-contrib/spec/content_for/different_key.erubis Normal file
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<% content_for :bar do %>bar<% end %>

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sinatra-contrib/spec/content_for/different_key.haml Normal file
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- content_for :bar do
bar

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sinatra-contrib/spec/content_for/different_key.slim Normal file
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- content_for :bar do
| bar

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sinatra-contrib/spec/content_for/layout.erb Normal file
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<%= yield_content :foo %>

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sinatra-contrib/spec/content_for/layout.erubis Normal file
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<%= yield_content :foo %>

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sinatra-contrib/spec/content_for/layout.haml Normal file
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= yield_content :foo

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sinatra-contrib/spec/content_for/layout.slim Normal file
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= yield_content :foo

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sinatra-contrib/spec/content_for/multiple_blocks.erb Normal file
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<% content_for :foo do %>foo<% end %>
<% content_for :foo do %>bar<% end %>
<% content_for :baz do %>WON'T RENDER ME<% end %>
<% content_for :foo do %>baz<% end %>

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sinatra-contrib/spec/content_for/multiple_blocks.erubis Normal file
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<% content_for :foo do %>foo<% end %>
<% content_for :foo do %>bar<% end %>
<% content_for :baz do %>WON'T RENDER ME<% end %>
<% content_for :foo do %>baz<% end %>

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sinatra-contrib/spec/content_for/multiple_blocks.haml Normal file
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- content_for :foo do
foo
- content_for :foo do
bar
- content_for :baz do
WON'T RENDER ME
- content_for :foo do
baz

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sinatra-contrib/spec/content_for/multiple_blocks.slim Normal file
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- content_for :foo do
| foo
- content_for :foo do
| bar
- content_for :baz do
| WON'T RENDER ME
- content_for :foo do
| baz

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sinatra-contrib/spec/content_for/passes_values.erb Normal file
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<%= yield_content :foo, 1, 2 %>

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sinatra-contrib/spec/content_for/passes_values.erubis Normal file
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<%= yield_content :foo, 1, 2 %>

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sinatra-contrib/spec/content_for/passes_values.haml Normal file
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= yield_content :foo, 1, 2

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sinatra-contrib/spec/content_for/passes_values.slim Normal file
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== yield_content :foo, 1, 2

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sinatra-contrib/spec/content_for/same_key.erb Normal file
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<% content_for :foo do %>foo<% end %>

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sinatra-contrib/spec/content_for/same_key.erubis Normal file
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<% content_for :foo do %>foo<% end %>

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sinatra-contrib/spec/content_for/same_key.haml Normal file
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- content_for :foo do
foo

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sinatra-contrib/spec/content_for/same_key.slim Normal file
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- content_for :foo do
| foo

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sinatra-contrib/spec/content_for/takes_values.erb Normal file
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<% content_for :foo do |a, b| %><i><%= a %></i> <%= b %><% end %>

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sinatra-contrib/spec/content_for/takes_values.erubis Normal file
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<% content_for :foo do |a, b| %><i><%= a %></i> <%= b %><% end %>

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sinatra-contrib/spec/content_for/takes_values.haml Normal file
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- content_for :foo do |a, b|
%i= a
=b

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sinatra-contrib/spec/content_for/takes_values.slim Normal file
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- content_for :foo do |a, b|
i= a
= b

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require 'backports'
require_relative 'spec_helper'
describe Sinatra::ContentFor do
# TODO: liquid radius markaby builder nokogiri
engines = %w[erb erubis haml slim]
engines.each do |inner|
engines.each do |outer|
describe "#{inner.capitalize} templates with #{outer.capitalize} layouts" do
def body
super.gsub(/\s/, '')
end
before :all do
begin
require inner
require outer
rescue LoadError => e
pending "Skipping: " << e.message
end
end
before do
mock_app do
helpers Sinatra::ContentFor
set inner, :layout_engine => outer
set :views, File.expand_path("../content_for", __FILE__)
get('/:view') { send(inner, params[:view].to_sym) }
get('/:layout/:view') do
send inner, params[:view].to_sym, :layout => params[:layout].to_sym
end
end
end
it 'renders blocks declared with the same key you use when rendering' do
get('/same_key').should be_ok
body.should == "foo"
end
it 'does not render a block with a different key' do
get('/different_key').should be_ok
body.should == ""
end
it 'renders multiple blocks with the same key'do
get('/multiple_blocks').should be_ok
body.should == "foobarbaz"
end
it 'passes values to the blocks' do
get('/passes_values/takes_values').should be_ok
body.should == "<i>1</i>2"
end
end
end
end
end