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Added the beginnings of the observe_field helper

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foobarfighter authored and stefanpenner committed Sep 23, 2009
1 parent f3caa63 commit a792ee5665fff4bd3751e97e1d949b60e73e333d
Showing with 68 additions and 1 deletion.
  1. +13 −1 actionpack/lib/action_view/helpers/ajax_helper.rb
  2. +55 −0 actionpack/test/template/ajax_test.rb
@@ -33,7 +33,19 @@ def button_to_remote(name, options = {}, html_options = {})
tag(:input, html_options)
end
-
+
+ def observe_field(name, options = {}, html_options = {})
+ url = options.delete(:url)
+ url = url_for(url) if url.is_a?(Hash)
+
+ if frequency = options.delete(:frequency)
+ html_options[:"data-frequency"] = frequency
+ end
+
+ html_options.merge!(:"data-observe" => true, :"data-url" => url)
+ tag(:input, html_options)
+ end
+
module Rails2Compatibility
def set_callbacks(options, html)
[:complete, :failure, :success, :interactive, :loaded, :loading].each do |type|
@@ -112,3 +112,58 @@ class LegacyButtonToRemoteTest < ButtonToRemoteTest
end
end
end
+
+class ObserveFieldTest < AjaxTestCase
+ def url_for(hash)
+ "/blog/update"
+ end
+
+ def protect_against_forgery?
+ false
+ end
+
+ def field(options = {})
+ observe_field("title", options)
+ end
+
+ test "basic" do
+ assert_html field,
+ %w(data-observe="true")
+ end
+
+ test "with a :frequency option" do
+ assert_html field(:frequency => 5.minutes),
+ %w(data-observe="true" data-frequency="300")
+ end
+
+ test "using a url string" do
+ assert_html field(:url => "/some/other/url"),
+ %w(data-observe="true" data-url="/some/other/url")
+ end
+
+ test "using a url hash" do
+ assert_html field(:url => {:controller => :blog, :action => :update}),
+ %w(data-observe="true" data-url="/blog/update")
+ end
+
+# def test_observe_field
+# assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Form.Element.Observer('glass', 300, function(element, value) {new Ajax.Request('http://www.example.com/reorder_if_empty', {asynchronous:true, evalScripts:true, parameters:value})})\n//]]>\n</script>),
+# observe_field("glass", :frequency => 5.minutes, :url => { :action => "reorder_if_empty" })
+# end
+#
+# def test_observe_field_using_with_option
+# expected = %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Form.Element.Observer('glass', 300, function(element, value) {new Ajax.Request('http://www.example.com/check_value', {asynchronous:true, evalScripts:true, parameters:'id=' + encodeURIComponent(value)})})\n//]]>\n</script>)
+# assert_dom_equal expected, observe_field("glass", :frequency => 5.minutes, :url => { :action => "check_value" }, :with => 'id')
+# assert_dom_equal expected, observe_field("glass", :frequency => 5.minutes, :url => { :action => "check_value" }, :with => "'id=' + encodeURIComponent(value)")
+# end
+#
+# def test_observe_field_using_json_in_with_option
+# expected = %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Form.Element.Observer('glass', 300, function(element, value) {new Ajax.Request('http://www.example.com/check_value', {asynchronous:true, evalScripts:true, parameters:{'id':value}})})\n//]]>\n</script>)
+# assert_dom_equal expected, observe_field("glass", :frequency => 5.minutes, :url => { :action => "check_value" }, :with => "{'id':value}")
+# end
+#
+# def test_observe_field_using_function_for_callback
+# assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Form.Element.Observer('glass', 300, function(element, value) {alert('Element changed')})\n//]]>\n</script>),
+# observe_field("glass", :frequency => 5.minutes, :function => "alert('Element changed')")
+# end
+end

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