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-rw-r--r--actionpack/lib/action_view/helpers/tag_helper.rb29
-rw-r--r--actionpack/lib/action_view/helpers/url_helper.rb3
2 files changed, 31 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/tag_helper.rb b/actionpack/lib/action_view/helpers/tag_helper.rb
index fa74e3f4ee..eb8af0c098 100644
--- a/actionpack/lib/action_view/helpers/tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/tag_helper.rb
@@ -22,9 +22,36 @@ module ActionView
"<#{name}#{tag_options(options)}>#{content}</#{name}>"
end
+
+ # Returns an image tag converting the +options+ instead html options on the tag, but with these special cases:
+ #
+ # * <tt>:alt</tt> - If no alt text is given, the file name part of the +src+ is used (capitalized and without the extension)
+ # * <tt>:size</tt> - Supplied as "XxY", so "30x45" becomes width="30" and height="45"
+ #
+ # The +src+ can be supplied as a...
+ # * full path, like "/my_images/image.gif"
+ # * file name, like "rss.gif", that gets expanded to "/images/rss.gif"
+ # * file name without extension, like "logo", that gets expanded to "/images/logo.png"
+ def image_tag(src, options = {})
+ options.symbolize_keys
+
+ options.update({ :src => src.include?("/") ? src : "/images/#{src}" })
+ options[:src] += ".png" unless options[:src].include?(".")
+
+ options[:alt] ||= src.split("/").last.split(".").first.capitalize
+
+ if options[:size]
+ options[:width], options[:height] = options[:size].split("x")
+ options.delete :size
+ end
+
+ tag("img", options)
+ end
+
private
def tag_options(options)
unless options.empty?
+ options.symbolize_keys
" " + options.map { |key, value|
%(#{key}="#{html_escape(value.to_s)}")
}.sort.join(" ")
@@ -32,4 +59,4 @@ module ActionView
end
end
end
-end
+end \ No newline at end of file
diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index 137cfe58ab..609de9deed 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -52,6 +52,9 @@ module ActionView
# Examples:
# link_image_to "logo", { :controller => "home" }, :alt => "Homepage", :size => "45x80"
# link_image_to "delete", { :action => "destroy" }, :size => "10x10", :confirm => "Are you sure?", "class" => "admin"
+ #
+ # NOTE: This tag is deprecated. Combine the link_to and image_tag yourself instead, like:
+ # link_to(image_tag("rss", :size => "30x45", :border => 0), "http://www.example.com")
def link_image_to(src, options = {}, html_options = {}, *parameters_for_method_reference)
image_options = { "src" => src.include?("/") ? src : "/images/#{src}" }
image_options["src"] += ".png" unless image_options["src"].include?(".")