From 7c0e5ef916220d5fdc078817e3eb04b5f7896217 Mon Sep 17 00:00:00 2001
From: Alastair Brunton <info@simplyexcited.co.uk>
Date: Fri, 8 Aug 2008 15:55:50 +0200
Subject: [PATCH] image_submit_tag confirm option addition

---
 .../lib/action_view/helpers/form_tag_helper.rb     |   10 ++++++++++
 actionpack/test/template/form_tag_helper_test.rb   |    7 +++++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/actionpack/lib/action_view/helpers/form_tag_helper.rb b/actionpack/lib/action_view/helpers/form_tag_helper.rb
index e8ca02d..9e3ea6a 100644
--- a/actionpack/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_tag_helper.rb
@@ -374,6 +374,9 @@ module ActionView
       # <tt>source</tt> is passed to AssetTagHelper#image_path
       #
       # ==== Options
+      # * <tt>:confirm => 'question?'</tt> - This will add a JavaScript confirm
+      #   prompt with the question specified. If the user accepts, the form is
+      #   processed normally, otherwise no action is taken.
       # * <tt>:disabled</tt> - If set to true, the user will not be able to use this input.
       # * Any other key creates standard HTML options for the tag.
       #
@@ -390,6 +393,13 @@ module ActionView
       #   image_submit_tag("agree.png", :disabled => true, :class => "agree-disagree-button")
       #   # => <input class="agree-disagree-button" disabled="disabled" src="/images/agree.png" type="image" />
       def image_submit_tag(source, options = {})
+        options.stringify_keys!
+
+        if confirm = options.delete("confirm")
+          options["onclick"] ||= ''
+          options["onclick"] += "return #{confirm_javascript_function(confirm)};"
+        end
+
         tag :input, { "type" => "image", "src" => path_to_image(source) }.update(options.stringify_keys)
       end
 
diff --git a/actionpack/test/template/form_tag_helper_test.rb b/actionpack/test/template/form_tag_helper_test.rb
index 9b41ff8..f1b1b0f 100644
--- a/actionpack/test/template/form_tag_helper_test.rb
+++ b/actionpack/test/template/form_tag_helper_test.rb
@@ -241,6 +241,13 @@ class FormTagHelperTest < ActionView::TestCase
       submit_tag("Save", :confirm => "Are you sure?")
     )
   end
+  
+  def test_image_submit_tag_with_confirmation
+    assert_dom_equal(
+      %(<input type="image" src="/images/save.gif" onclick="return confirm('Are you sure?');"/>),
+      image_submit_tag("save.gif", :confirm => "Are you sure?")
+    )
+  end
 
   def test_pass
     assert_equal 1, 1
-- 
1.5.2.5