SoundSoftware Code Site

# Redmine - project management software

# Copyright (C) 2006-2011  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.

class WatchersController < ApplicationController

  before_filter :find_project

  before_filter :require_login, :check_project_privacy, :only => [:watch, :unwatch]

  before_filter :authorize, :only => [:new, :destroy]

  verify :method => :post,

         :only => [ :watch, :unwatch ],

         :render => { :nothing => true, :status => :method_not_allowed }

  def watch

    if @watched.respond_to?(:visible?) && !@watched.visible?(User.current)

      render_403

    else

      set_watcher(User.current, true)

    end

  end

  def unwatch

    set_watcher(User.current, false)

  end

  def new

    @watcher = Watcher.new(params[:watcher])

    @watcher.watchable = @watched

    @watcher.save if request.post?

    respond_to do |format|

      format.html { redirect_to :back }

      format.js do

        render :update do |page|

          page.replace_html 'watchers', :partial => 'watchers/watchers', :locals => {:watched => @watched}

        end

      end

    end

  rescue ::ActionController::RedirectBackError

    render :text => 'Watcher added.', :layout => true

  end

  def destroy

    @watched.set_watcher(User.find(params[:user_id]), false) if request.post?

    respond_to do |format|

      format.html { redirect_to :back }

      format.js do

        render :update do |page|

          page.replace_html 'watchers', :partial => 'watchers/watchers', :locals => {:watched => @watched}

        end

      end

    end

  end

private

  def find_project

    klass = Object.const_get(params[:object_type].camelcase)

    return false unless klass.respond_to?('watched_by')

    @watched = klass.find(params[:object_id])

    @project = @watched.project

  rescue

    render_404

  end

  def set_watcher(user, watching)

    @watched.set_watcher(user, watching)

    respond_to do |format|

      format.html { redirect_to :back }

      format.js do

        render(:update) do |page|

          c = watcher_css(@watched)

          page.select(".#{c}").each do |item|

            page.replace_html item, watcher_link(@watched, user)

          end

        end

      end

    end

  rescue ::ActionController::RedirectBackError

    render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true

  end

end