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Docs for js linkers (closes #5948)

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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4904 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
This commit is contained in:
David Heinemeier Hansson 2006-09-02 19:41:04 +00:00
parent 3859d6da6e
commit 6e08dab186
1 changed files with 22 additions and 1 deletions
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23
actionpack/lib/action_view/helpers/javascript_helper.rb
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@ -44,7 +44,7 @@ module ActionView
include PrototypeHelper
# Returns a link that'll trigger a JavaScript +function+ using the
# Returns a link that will trigger a JavaScript +function+ using the
# onclick handler and return false after the fact.
#
# The +function+ argument can be omitted in favor of an +update_page+
@ -53,11 +53,32 @@ module ActionView
#
# Examples:
# link_to_function "Greeting", "alert('Hello world!')"
# Produces:
# <a onclick="alert('Hello world!'); return false;" href="#">Greeting</a>
#
# link_to_function(image_tag("delete"), "if (confirm('Really?')) do_delete()")
# Produces:
# <a onclick="if (confirm('Really?')) do_delete(); return false;" href="#">
# <img src="/images/delete.png?" alt="Delete"/>
# </a>
#
# link_to_function("Show me more", nil, :id => "more_link") do |page|
# page[:details].visual_effect :toggle_blind
# page[:more_link].replace_html "Show me less"
# end
# Produces:
# <a href="#" id="more_link" onclick="try {
# $(&quot;details&quot;).visualEffect(&quot;toggle_blind&quot;);
# $(&quot;more_link&quot;).update(&quot;Show me less&quot;);
# }
# catch (e) {
# alert('RJS error:\n\n' + e.toString());
# alert('$(\&quot;details\&quot;).visualEffect(\&quot;toggle_blind\&quot;);
# \n$(\&quot;more_link\&quot;).update(\&quot;Show me less\&quot;);');
# throw e
# };
# return false;">Show me more</a>
#
def link_to_function(name, function = '', html_options = {}, &block)
html_options.symbolize_keys!
function = update_page(&block) if block_given?