Chris@909: # encoding: utf-8
Chris@909: #
Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@909: 
Chris@909: module WatchersHelper
Chris@909: 
Chris@909:   def watcher_tag(object, user, options={})
Chris@909:     content_tag("span", watcher_link(object, user), :class => watcher_css(object))
Chris@909:   end
Chris@909: 
Chris@909:   def watcher_link(object, user)
Chris@909:     return '' unless user && user.logged? && object.respond_to?('watched_by?')
Chris@909:     watched = object.watched_by?(user)
Chris@909:     url = {:controller => 'watchers',
Chris@909:            :action => (watched ? 'unwatch' : 'watch'),
Chris@909:            :object_type => object.class.to_s.underscore,
Chris@909:            :object_id => object.id}
Chris@909:     link_to_remote((watched ? l(:button_unwatch) : l(:button_watch)),
Chris@909:                    {:url => url},
Chris@909:                    :href => url_for(url),
Chris@909:                    :class => (watched ? 'icon icon-fav' : 'icon icon-fav-off'))
Chris@909: 
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the css class used to identify watch links for a given +object+
Chris@909:   def watcher_css(object)
Chris@909:     "#{object.class.to_s.underscore}-#{object.id}-watcher"
Chris@909:   end
Chris@909: 
Chris@909:   # Returns a comma separated list of users watching the given object
Chris@909:   def watchers_list(object)
Chris@909:     remove_allowed = User.current.allowed_to?("delete_#{object.class.name.underscore}_watchers".to_sym, object.project)
Chris@909:     lis = object.watcher_users.collect do |user|
Chris@909:       s = avatar(user, :size => "16").to_s + link_to_user(user, :class => 'user').to_s
Chris@909:       if remove_allowed
Chris@909:         url = {:controller => 'watchers',
Chris@909:                :action => 'destroy',
Chris@909:                :object_type => object.class.to_s.underscore,
Chris@909:                :object_id => object.id,
Chris@909:                :user_id => user}
Chris@909:         s += ' ' + link_to_remote(image_tag('delete.png'),
Chris@909:                                   {:url => url},
Chris@909:                                   :href => url_for(url),
Chris@909:                                   :style => "vertical-align: middle",
Chris@909:                                   :class => "delete")
Chris@909:       end
Chris@909:       "<li>#{ s }</li>"
Chris@909:     end
Chris@909:     lis.empty? ? "" : "<ul>#{ lis.join("\n") }</ul>"
Chris@909:   end
Chris@909: end