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Don't load unless caller and content matches for content_for

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Sdogruyol 2016-07-10 15:01:00 +03:00
parent ce2ffed705
commit e6e70fe222
1 changed files with 11 additions and 4 deletions
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15
src/kemal/helpers/macros.cr
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@ -1,6 +1,6 @@
require "kilt"
CONTENT_FOR_BLOCKS = Hash(String, Proc(String)).new
CONTENT_FOR_BLOCKS = Hash(String, Tuple(String, Proc(String))).new
# <tt>content_for</tt> is a set of helpers that allows you to capture
# blocks inside views to be rendered later during the request. The most
@ -31,20 +31,27 @@ CONTENT_FOR_BLOCKS = Hash(String, Proc(String)).new
# 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.
macro content_for(key)
CONTENT_FOR_BLOCKS[{{key}}] = ->() {
macro content_for(key, file = __FILE__)
proc = ->() {
__kilt_io__ = MemoryIO.new
{{ yield }}
__kilt_io__.to_s
}
CONTENT_FOR_BLOCKS[{{key}}] = Tuple.new {{file}}, proc
nil
end
macro yield_content(key)
CONTENT_FOR_BLOCKS[{{key}}].call if CONTENT_FOR_BLOCKS.has_key?({{key}})
if CONTENT_FOR_BLOCKS.has_key?({{key}})
__caller_filename__ = CONTENT_FOR_BLOCKS[{{key}}][0]
proc = CONTENT_FOR_BLOCKS[{{key}}][1]
proc.call if __content_filename__ == __caller_filename__
end
end
macro render(filename, layout)
__content_filename__ = {{filename}}
content = render {{filename}}
render {{layout}}
end