Change IconsHelper#icon_for_mime_type to accept raw MIME types instead of CSS class names (#43797).

Patch by Go MAEDA (user:maeda).


git-svn-id: https://svn.redmine.org/redmine/trunk@24401 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/icons_helper.rb

@@ -40,7 +40,7 @@ module IconsHelper
     if entry.is_dir?
       sprite_icon("folder", name, **)
     else
-      icon_name = icon_for_mime_type(Redmine::MimeType.css_class_of(name))
+      icon_name = icon_for_mime_type(Redmine::MimeType.of(name))
       sprite_icon(icon_name, name, **)
     end
   end
@@ -109,11 +109,11 @@ module IconsHelper
   end
 
   def icon_for_mime_type(mime)
-    if %w(text-plain text-x-c text-x-csharp text-x-java text-x-php
-          text-x-ruby text-xml text-css text-html text-css text-html
-          image-gif image-jpeg image-png image-tiff
-          application-pdf application-zip application-gzip application-javascript).include?(mime)
-      mime
+    if %w(text/plain text/x-c text/x-csharp text/x-java text/x-php
+          text/x-ruby text/xml text/css text/html text/css text/html
+          image/gif image/jpeg image/png image/tiff
+          application/pdf application/zip application/gzip application/javascript).include?(mime)
+      mime.tr('/', '-')
     else
       "file"
     end

test/helpers/icons_helper_test.rb

@@ -125,8 +125,8 @@ class IconsHelperTest < Redmine::HelperTest
   end
 
   def test_icon_for_mime_type_should_return_specific_icon_for_known_mime_types
-    assert_equal 'text-plain', icon_for_mime_type('text-plain')
-    assert_equal 'application-pdf', icon_for_mime_type('application-pdf')
+    assert_equal 'text-plain', icon_for_mime_type('text/plain')
+    assert_equal 'application-pdf', icon_for_mime_type('application/pdf')
   end
 
   def test_icon_for_mime_type_should_return_generic_file_icon_for_unknown_mime_types