diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_view/helpers/javascript_helper.rb | 53 |
1 files changed, 9 insertions, 44 deletions
diff --git a/actionpack/lib/action_view/helpers/javascript_helper.rb b/actionpack/lib/action_view/helpers/javascript_helper.rb index a19ba7a968..3d77d5c13b 100644 --- a/actionpack/lib/action_view/helpers/javascript_helper.rb +++ b/actionpack/lib/action_view/helpers/javascript_helper.rb @@ -129,54 +129,19 @@ module ActionView tag(:input, html_options.merge(:type => 'button', :value => name, :onclick => onclick)) end - # Returns a link of the given +name+ that will trigger a JavaScript +function+ using the - # onclick handler and return false after the fact. + # Returns a link whose +onclick+ handler triggers the passed JavaScript. # - # The first argument +name+ is used as the link text. - # - # The next arguments are optional and may include the javascript function definition and a hash of html_options. - # - # The +function+ argument can be omitted in favor of an +update_page+ - # block, which evaluates to a string when the template is rendered - # (instead of making an Ajax request first). - # - # The +html_options+ will accept a hash of html attributes for the link tag. Some examples are :class => "nav_button", :id => "articles_nav_button" - # - # Note: if you choose to specify the javascript function in a block, but would like to pass html_options, set the +function+ parameter to nil + # The helper receives a name, JavaScript code, and an optional hash of HTML options. The + # name is used as the link text and the JavaScript code goes into the +onclick+ attribute. + # If +html_options+ has an <tt>:onclick</tt>, that one is put before +function+. Once all + # the JavaScript is set, the helper appends "; return false;". # + # The +href+ attribute of the tag is set to "#" unles +html_options+ has one. # - # 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 + # link_to_function "Greeting", "alert('Hello world!')", :class => "nav_link" # Produces: - # <a href="#" id="more_link" onclick="try { - # $("details").visualEffect("toggle_blind"); - # $("more_link").update("Show me less"); - # } - # catch (e) { - # alert('RJS error:\n\n' + e.toString()); - # alert('$(\"details\").visualEffect(\"toggle_blind\"); - # \n$(\"more_link\").update(\"Show me less\");'); - # throw e - # }; - # return false;">Show me more</a> - # - def link_to_function(name, *args, &block) - html_options = args.extract_options!.symbolize_keys - - function = block_given? ? update_page(&block) : args[0] || '' + # <a onclick="alert('Hello world!'); return false;" href="#" class="nav_link">Greeting</a> + def link_to_function(name, function, html_options={}) onclick = "#{"#{html_options[:onclick]}; " if html_options[:onclick]}#{function}; return false;" href = html_options[:href] || '#' |