Small refactorization of avatar methods (#31391).

* move existing methods from ApplicationHelper to a new helper file (AvatarsHelper)
* change default avatar size from 50 to 24 because most of the avatars are using the  size 24
* class 'gravatar' is always added and all custom classes are appended
* added user name as default title for avatar images
* added two new methods: @assignee_avatar@ and @author_avatar@

Patch by Marius BALTEANU.


git-svn-id: http://svn.redmine.org/redmine/trunk@18175 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/plugins/gravatar/lib/gravatar.rb

@@ -18,7 +18,7 @@ module GravatarHelper
     :default => nil,
 
     # The default size in pixels for the gravatar image (they're square).
-    :size => 50,
+    :size => 24,
 
     # The maximum allowed MPAA rating for gravatars. This allows you to
     # exclude gravatars that may be out of character for your site.

lib/redmine/helpers/gantt.rb

@@ -686,13 +686,7 @@ module Redmine
             css_classes << ' over-end-date' if progress_date > self.date_to
           end
           s = (+"").html_safe
-          if issue.assigned_to.present?
-            assigned_string = l(:field_assigned_to) + ": " + issue.assigned_to.name
-            s << view.avatar(issue.assigned_to,
-                             :class => 'gravatar icon-gravatar',
-                             :size => 13,
-                             :title => assigned_string).to_s.html_safe
-          end
+          s << view.assignee_avatar(issue.assigned_to, :size => 13, :class => 'icon-gravatar')
           s << view.link_to_issue(issue).html_safe
           s << view.content_tag(:input, nil, :type => 'checkbox', :name => 'ids[]', :value => issue.id, :style => 'display:none;', :class => 'toggle-selection')
           view.content_tag(:span, s, :class => css_classes).html_safe