socialforge/app/helpers/watchers_helper.rb

# encoding: utf-8
#
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module WatchersHelper

  def watcher_tag(object, user, options={})
    ActiveSupport::Deprecation.warn "#watcher_tag is deprecated and will be removed in Redmine 3.0. Use #watcher_link instead."
    watcher_link(object, user)
  end

  ###################modified by liuping
  def watcher_link(objects, user)
    return '' unless user && user.logged?
    objects = Array.wrap(objects)

    watched = objects.any? {|object| object.watched_by?(user)}
    @watch_flag = (objects.first.instance_of?(User) or objects.first.instance_of?(Project) or (objects.first.instance_of?(Bid))) 
    css =  @watch_flag ? ([watcher_css(objects), watched ? 'icon joinButton' : 'icon joinButton'].join(' ')) : 
                                       ([watcher_css(objects), watched ? 'icon icon-fav joinButton' : 'icon icon-fav-off joinButton'].join(' '))

    text = @watch_flag ?  
                    (watched ? l(:button_unfollow) : l(:button_follow)) : (watched ? l(:button_unwatch) : l(:button_watch))

    url = watch_path(
      :object_type => objects.first.class.to_s.underscore,
      :object_id => (objects.size == 1 ? objects.first.id : objects.map(&:id).sort)
    )
    method = watched ? 'delete' : 'post'
  
    link_to text, url, :remote => true, :method => method, :class => css
  end
  
  # added by fq, modify nyan
  def join_in_course(course, user)
    return '' unless user && user.logged?
    joined = user.member_of?(course)
    text = joined ? l(:label_exit_course) : l(:label_join_course)
    url_t = join_path(:object_id => course.id)
    url_f = try_join_path(:object_id => course.id)
    method = joined ? 'delete' : 'post'
    if joined
      link_to text, url_t, :remote => true, :method => method, :id => 'join', :confirm => l(:text_are_you_sure), :class => 'joinButton'
    else
      link_to text, url_f, :remote => true, :method => method, :id => 'join', :class => 'joinButton'
    end       
  end

  # Returns the css class used to identify watch links for a given +object+
  def watcher_css(objects)
    objects = Array.wrap(objects)
    id = (objects.size == 1 ? objects.first.id : 'bulk')
    "#{objects.first.class.to_s.underscore}-#{id}-watcher"
  end

  # Returns a comma separated list of users watching the given object
  def watchers_list(object)
    remove_allowed = User.current.allowed_to?("delete_#{object.class.name.underscore}_watchers".to_sym, object.project)
    content = ''.html_safe
    lis = object.watcher_users.collect do |user|
      s = ''.html_safe
      s << avatar(user, :size => "16").to_s
      s << link_to_user(user, :class => 'user')
      if remove_allowed
        url = {:controller => 'watchers',
               :action => 'destroy',
               :object_type => object.class.to_s.underscore,
               :object_id => object.id,
               :user_id => user}
        s << ' '
        s << link_to(image_tag('delete.png'), url,
                     :remote => true, :method => 'delete', :class => "delete")
      end
      content << content_tag('li', s, :class => "user-#{user.id}")
    end
    content.present? ? content_tag('ul', content, :class => 'watchers') : content
  end

  def watchers_checkboxes(object, users, checked=nil)
    users.map do |user|
      c = checked.nil? ? object.watched_by?(user) : checked
      tag = check_box_tag 'issue[watcher_user_ids][]', user.id, c, :id => nil
      content_tag 'label', "#{tag} #{h(user)}".html_safe,
                  :id => "issue_watcher_user_ids_#{user.id}",
                  :class => "floating"
    end.join.html_safe
  end
end