1  # encoding: utf-8
   2  #
   3  # Redmine - project management software
   4  # Copyright (C) 2006-2011  Jean-Philippe Lang
   5  #
   6  # This program is free software; you can redistribute it and/or
   7  # modify it under the terms of the GNU General Public License
   8  # as published by the Free Software Foundation; either version 2
   9  # of the License, or (at your option) any later version.
  10  #
  11  # This program is distributed in the hope that it will be useful,
  12  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  # GNU General Public License for more details.
  15  #
  16  # You should have received a copy of the GNU General Public License
  17  # along with this program; if not, write to the Free Software
  18  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 
  20  module WatchersHelper
  21 
  22    def watcher_tag(object, user, options={})
  23      content_tag("span", watcher_link(object, user), :class => watcher_css(object))
  24    end
  25 
  26    def watcher_link(object, user)
  27      return '' unless user && user.logged? && object.respond_to?('watched_by?')
  28      watched = object.watched_by?(user)
  29      url = {:controller => 'watchers',
  30             :action => (watched ? 'unwatch' : 'watch'),
  31             :object_type => object.class.to_s.underscore,
  32             :object_id => object.id}
  33      link_to_remote((watched ? l(:button_unwatch) : l(:button_watch)),
  34                     {:url => url},
  35                     :href => url_for(url),
  36                     :class => (watched ? 'icon icon-fav' : 'icon icon-fav-off'))
  37 
  38    end
  39 
  40    # Returns the css class used to identify watch links for a given +object+
  41    def watcher_css(object)
  42      "#{object.class.to_s.underscore}-#{object.id}-watcher"
  43    end
  44 
  45    # Returns a comma separated list of users watching the given object
  46    def watchers_list(object)
  47      remove_allowed = User.current.allowed_to?("delete_#{object.class.name.underscore}_watchers".to_sym, object.project)
  48      lis = object.watcher_users.collect do |user|
  49        s = avatar(user, :size => "16").to_s + link_to_user(user, :class => 'user').to_s
  50        if remove_allowed
  51          url = {:controller => 'watchers',
  52                 :action => 'destroy',
  53                 :object_type => object.class.to_s.underscore,
  54                 :object_id => object.id,
  55                 :user_id => user}
  56          s += ' ' + link_to_remote(image_tag('delete.png'),
  57                                    {:url => url},
  58                                    :href => url_for(url),
  59                                    :style => "vertical-align: middle",
  60                                    :class => "delete")
  61        end
  62        content_tag :li, s.html_safe
  63      end
  64      (lis.empty? ? "" : "<ul>#{ lis.join("\n") }</ul>").html_safe
  65    end
  66 
  67    def watchers_checkboxes(object, users, checked=nil)
  68      users.map do |user|
  69        c = checked.nil? ? object.watched_by?(user) : checked
  70        tag = check_box_tag 'issue[watcher_user_ids][]', user.id, c, :id => nil
  71        content_tag 'label', "#{tag} #{h(user)}", :id => "issue_watcher_user_ids_#{user.id}", :class => "floating"
  72      end.join
  73    end
  74  end