ad_page_contract {
  This is the highest level site specific master template.

  Properties allowed
  doc(title) HTML title
  head code to be entered into head of document
  body 
  focus HTML id of form element to focus
  skip_link href of link to skip to. Should be of format #skip_link

  @author Lee Denison (lee@xarg.co.uk)

  $Id: default-master.tcl,v 1.26.2.1 2008/04/13 16:42:21 donb Exp $
}

#
# Set some basic variables
#
set system_name [ad_system_name]

if {[ad_conn url] eq "/"} {
    set system_url ""
} else {
    set system_url [ad_url]
}

if {[template::util::is_nil title]} {
    # TODO: decide how best to set the lang attribute for the title
    set title [ad_conn instance_name]
}

#
# Create standard top level navigation
#
if {![info exists navigation_groups]} {
    set navigation_groups [list]
}

if {![template::multirow exists navigation]} {
    template::multirow create navigation \
        group \
        label \
        href \
        target \
        title \
        lang \
        accesskey \
        class \
        id \
        tabindex 
}
for {set i 1} {$i <= [template::multirow size navigation]} {incr i} {
    template::multirow get navigation $i
    if {[lsearch $navigation_groups $navigation(group)] < 0} {
        lappend navigation_groups $navigation(group)
    }
}

#
# Add standard css
#

template::head::add_css \
    -href "/resources/acs-subsite/default-master.css" \
    -media "all"

# 
# User information and top level navigation links
#
set user_id [ad_conn user_id]
set untrusted_user_id [ad_conn untrusted_user_id]
set sw_admin_p 0

if { $untrusted_user_id == 0 } {
    # The browser does NOT claim to represent a user that we know about
    set login_url [ad_get_login_url -return]
} else {
    # The browser claims to represent a user that we know about
    set user_name [person::name -person_id $untrusted_user_id]
    set pvt_home_url [ad_pvt_home]
    set pvt_home_name [_ acs-subsite.Your_Account]
    set logout_url [ad_get_logout_url]

    # Site-wide admin link
    set admin_url {}

    set sw_admin_p [acs_user::site_wide_admin_p -user_id $untrusted_user_id]

    if { $sw_admin_p } {
        set admin_url "/acs-admin/"
        set devhome_url "/acs-admin/developer"
        set locale_admin_url "/acs-lang/admin"
    } else {
        set subsite_admin_p [permission::permission_p \
            -object_id [subsite::get_element -element object_id] \
            -privilege admin \
            -party_id $untrusted_user_id]

        if { $subsite_admin_p  } {
            set admin_url "[subsite::get_element -element url]admin/"
        }
    }
}

#
# User messages
#
util_get_user_messages -multirow user_messages

# 
# Set acs-lang urls
#
set acs_lang_url [apm_package_url_from_key "acs-lang"]
set num_of_locales [llength [lang::system::get_locales]]

if {$acs_lang_url eq ""} {
    set lang_admin_p 0
} else {
    set lang_admin_p [permission::permission_p \
        -object_id [site_node::get_element \
            -url $acs_lang_url \
            -element object_id] \
        -privilege admin \
        -party_id [ad_conn untrusted_user_id]]
}

set toggle_translator_mode_url [export_vars \
    -base ${acs_lang_url}admin/translator-mode-toggle \
    {{return_url [ad_return_url]}}]

set package_id [ad_conn package_id]
if { $num_of_locales > 1 } {
    set change_locale_url [export_vars -base $acs_lang_url {package_id}]
}

#
# Change locale link
#
if {[llength [lang::system::get_locales]] > 1} {
    set change_locale_url [export_vars -base "/acs-lang/" {package_id}]
}

#
# Who's Online
#
set num_users_online [lc_numeric [whos_online::num_users]]
set whos_online_url "[subsite::get_element -element url]shared/whos-online"

#
# Context bar
#
if {[info exists context]} {
    set context_tmp $context
    unset context
} else {
    set context_tmp {}
}

ad_context_bar_multirow -- $context_tmp

# Context bar separator
set subsite_id [ad_conn subsite_id]
set separator [parameter::get -package_id $subsite_id -parameter ContextBarSeparator -default ":"]

#
# Curriculum specific bar
#   TODO: remove this and add a more systematic / package independent way 
#   TODO  of getting this content here
#
set curriculum_bar_p [expr {
    [site_node::get_package_url -package_key curriculum] ne ""
}]

if {![info exists skip_link]} {
    set skip_link "#content-wrapper"
}
