Module: Mack::ViewHelpers::HtmlHelpers

Defined in:
lib/mack-javascript/view_helpers/html_helpers.rb

Instance Method Summary collapse

Instance Method Details

#button_to_remote(value = "Submit", options = {}, *original_args) ⇒ Object

Returns a button that links to a remote function.

Example: button_to_remote('Create', :url => '/foo') # => 



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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 48

def button_to_remote(value = "Submit", options = {}, *original_args)
  with = options.delete(:with) || 'Form.serialize(this.form)'
  url = options.delete(:url) || '#'
  options[:onclick] = remote_function(:with => with, :url => url) + '; return false'
  submit_button(value, options, *original_args)
end

#js ⇒ Object 



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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 40

def js
  Mack::JavaScript::ScriptGenerator.new
end

#link_to_function(link_text, *args, &block) ⇒ Object 



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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 27

def link_to_function(link_text, *args, &block)
  function = args[0] || ''
  options = args[1] || {}
  function = yield(js).chop if block_given?
  options[:onclick] = (options[:onclick] ? "#{options[:onclick]}; " : "") + "#{function}; return false;" 
  link_to(link_text, '#', options)
end

#link_to_remote(link_text, ajax_options, options = {}) ⇒ Object 



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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 23

def link_to_remote(link_text, ajax_options, options = {})
  link_to_function(link_text, remote_function(ajax_options), options)
end

#remote_function(options) ⇒ Object

Returns javascript that does an Ajax call



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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 36

def remote_function(options)
  Mack::JavaScript::ScriptGenerator.framework.remote_function(options)
end

#update_page {|gs| ... } ⇒ Object

Renders javascript in an html file

Example: <%= update_page do |page| page.alert('this gets translated to js!') page.show('my_hidden_div') end %> This returns (assuming Prototype is your Js Framework):

Yields:

  • (gs) 


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# File 'lib/mack-javascript/view_helpers/html_helpers.rb', line 17

def update_page(&block)
  gs = js
  yield(gs)
  "<script type='#{Mack::Utils::MimeTypes[:js]}'>\n" + gs.to_s.gsub(';', ";\n") + "</script>"
end