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: class WatchersController < ApplicationController
Chris@909:   before_filter :find_project
Chris@909:   before_filter :require_login, :check_project_privacy, :only => [:watch, :unwatch]
Chris@909:   before_filter :authorize, :only => [:new, :destroy]
Chris@909: 
Chris@909:   verify :method => :post,
Chris@909:          :only => [ :watch, :unwatch ],
Chris@909:          :render => { :nothing => true, :status => :method_not_allowed }
Chris@909: 
Chris@909:   def watch
Chris@909:     if @watched.respond_to?(:visible?) && !@watched.visible?(User.current)
Chris@909:       render_403
Chris@909:     else
Chris@909:       set_watcher(User.current, true)
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def unwatch
Chris@909:     set_watcher(User.current, false)
Chris@909:   end
Chris@909: 
Chris@909:   def new
Chris@909:     @watcher = Watcher.new(params[:watcher])
Chris@909:     @watcher.watchable = @watched
Chris@909:     @watcher.save if request.post?
Chris@909:     respond_to do |format|
Chris@909:       format.html { redirect_to :back }
Chris@909:       format.js do
Chris@909:         render :update do |page|
Chris@909:           page.replace_html 'watchers', :partial => 'watchers/watchers', :locals => {:watched => @watched}
Chris@909:         end
Chris@909:       end
Chris@909:     end
Chris@909:   rescue ::ActionController::RedirectBackError
Chris@909:     render :text => 'Watcher added.', :layout => true
Chris@909:   end
Chris@909: 
Chris@909:   def destroy
Chris@909:     @watched.set_watcher(User.find(params[:user_id]), false) if request.post?
Chris@909:     respond_to do |format|
Chris@909:       format.html { redirect_to :back }
Chris@909:       format.js do
Chris@909:         render :update do |page|
Chris@909:           page.replace_html 'watchers', :partial => 'watchers/watchers', :locals => {:watched => @watched}
Chris@909:         end
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909: private
Chris@909:   def find_project
Chris@909:     klass = Object.const_get(params[:object_type].camelcase)
Chris@909:     return false unless klass.respond_to?('watched_by')
Chris@909:     @watched = klass.find(params[:object_id])
Chris@909:     @project = @watched.project
Chris@909:   rescue
Chris@909:     render_404
Chris@909:   end
Chris@909: 
Chris@909:   def set_watcher(user, watching)
Chris@909:     @watched.set_watcher(user, watching)
Chris@909:     respond_to do |format|
Chris@909:       format.html { redirect_to :back }
Chris@909:       format.js do
Chris@909:         render(:update) do |page|
Chris@909:           c = watcher_css(@watched)
Chris@909:           page.select(".#{c}").each do |item|
Chris@909:             page.replace_html item, watcher_link(@watched, user)
Chris@909:           end
Chris@909:         end
Chris@909:       end
Chris@909:     end
Chris@909:   rescue ::ActionController::RedirectBackError
Chris@909:     render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true
Chris@909:   end
Chris@909: end