Added JavascriptHelper#update_element_function, which returns a Javascript function (or expression) that'll update a DOM element according to the options passed #933 [mortonda@dgrmm.net]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1644 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

3 files changed, 52 insertions, 0 deletions

diff --git a/actionpack/test/controller/capture_test.rb b/actionpack/test/controller/capture_test.rb
new file mode 100644
index 0000000000..ad243c4587
--- /dev/null
+++ b/actionpack/test/controller/capture_test.rb
@@ -0,0 +1,39 @@
+require File.dirname(__FILE__) + '/../abstract_unit'
+
+class CaptureController < ActionController::Base
+  def self.controller_name; "test"; end
+  def self.controller_path; "test"; end
+
+  def rescue_action(e) raise end
+end
+
+CaptureController.template_root = File.dirname(__FILE__) + "/../fixtures/"
+
+class CaptureTest < Test::Unit::TestCase
+  def setup
+    @controller = CaptureController.new
+
+    # enable a logger so that (e.g.) the benchmarking stuff runs, so we can get
+    # a more accurate simulation of what happens in "real life".
+    @controller.logger = Logger.new(nil)
+
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+
+    @request.host = "www.nextangle.com"
+  end
+
+  def test_simple_capture
+    get :capturing
+    assert_equal "Dreamy days", @response.body.strip
+  end
+
+  def test_update_element_with_capture
+    get :update_element_with_capture
+    assert_equal(
+      "<script type=\"text/javascript\">$('products').innerHTML = '\\n  <p>Product 1</p>\\n  <p>Product 2</p>\\n'</script>" +
+        "\n\n$('status').innerHTML = '\\n  <b>You bought something!</b>\\n'", 
+      @response.body.strip
+    )
+  end
+end
diff --git a/actionpack/test/fixtures/test/capturing.rhtml b/actionpack/test/fixtures/test/capturing.rhtml
new file mode 100644
index 0000000000..1addaa40d9
--- /dev/null
+++ b/actionpack/test/fixtures/test/capturing.rhtml
@@ -0,0 +1,4 @@
+<% days = capture do %>
+  Dreamy days
+<% end %>
+<%= days %>
\ No newline at end of file
diff --git a/actionpack/test/fixtures/test/update_element_with_capture.rhtml b/actionpack/test/fixtures/test/update_element_with_capture.rhtml
new file mode 100644
index 0000000000..2d2ac84214
--- /dev/null
+++ b/actionpack/test/fixtures/test/update_element_with_capture.rhtml
@@ -0,0 +1,9 @@
+<% replacement_function = update_element_function("products", :action => :replace) do %>
+  <p>Product 1</p>
+  <p>Product 2</p>
+<% end %>
+<%= javascript_tag(replacement_function) %>
+
+<% update_element_function("status", :action => :replace, :binding => binding) do %>
+  <b>You bought something!</b>
+<% end %>
\ No newline at end of file