File:
[LON-CAPA] /
loncom /
interface /
lonnavdisplay.pm
Revision
1.2:
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Fri Apr 20 01:54:29 2007 UTC (17 years, 4 months ago) by
albertel
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CVS tags:
version_2_6_X,
version_2_6_3,
version_2_6_2,
version_2_6_1,
version_2_6_0,
version_2_5_X,
version_2_5_99_1,
version_2_5_99_0,
version_2_5_2,
version_2_5_1,
version_2_5_0,
version_2_4_X,
version_2_4_99_0,
version_2_4_2,
version_2_4_1,
version_2_4_0,
version_2_3_99_0,
HEAD
- bug#4718, problems with no due date set were mucking with the show first due homework
# The LearningOnline Network with CAPA
# Navigate Maps Handler
#
# $Id: lonnavdisplay.pm,v 1.2 2007/04/20 01:54:29 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA 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.
#
# LON-CAPA 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 LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###
package Apache::lonnavdisplay;
use strict;
use Apache::Constants qw(:common :http);
use Apache::lonmenu();
use Apache::loncommon();
use Apache::lonnavmaps();
use Apache::lonhtmlcommon();
use Apache::lonnet;
use Apache::lonlocal;
use Time::HiRes qw( gettimeofday tv_interval );
sub handler {
my $r = shift;
real_handler($r);
}
sub real_handler {
my $r = shift;
#my $t0=[&gettimeofday()];
# Handle header-only request
if ($r->header_only) {
if ($env{'browser.mathml'}) {
&Apache::loncommon::content_type($r,'text/xml');
} else {
&Apache::loncommon::content_type($r,'text/html');
}
$r->send_http_header;
return OK;
}
# Send header, don't cache this page
if ($env{'browser.mathml'}) {
&Apache::loncommon::content_type($r,'text/xml');
} else {
&Apache::loncommon::content_type($r,'text/html');
}
&Apache::loncommon::no_cache($r);
my %toplinkitems=();
&Apache::lonnavmaps::add_linkitem(\%toplinkitems,'blank','',
"Select Action");
if ($ENV{QUERY_STRING} eq 'collapseExternal') {
&Apache::lonnet::put('environment',{'remotenavmap' => 'off'});
&Apache::lonnet::appenv('environment.remotenavmap' => 'off');
my $menu=&Apache::lonmenu::reopenmenu();
my $navstatus=&Apache::lonmenu::get_nav_status();
if ($menu) {
$menu=(<<MENU)
swmenu=$menu
swmenu.clearTimeout(swmenu.menucltim);
$navstatus
MENU
} else {
my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
my $mainwindow='window.open('.$nothing.',"loncapaclient","",false);';
$menu=(<<MENU)
swmenu=$mainwindow
$navstatus
MENU
}
$r->send_http_header;
my $js =<<"ENDSUBM";
<script type="text/javascript">
function submitthis() {
$menu
self.close();
}
</script>
ENDSUBM
$r->print(&Apache::loncommon::start_page(undef,$js,
{'only_body' => 1,
'bgcolor' => '#FFFFFF',
'add_entries' =>
{'onload' =>
"submitthis()"}}).
&Apache::loncommon::end_page());
return OK;
}
if ($ENV{QUERY_STRING} =~ /^launchExternal/) {
&Apache::lonnet::put('environment',{'remotenavmap' => 'on'});
&Apache::lonnet::appenv('environment.remotenavmap' => 'on');
my $menu=&Apache::lonmenu::reopenmenu();
my $navstatus=&Apache::lonmenu::get_nav_status();
if ($menu) {
$r->print(<<MENU);
<script type="text/javascript">
swmenu=$menu
swmenu.clearTimeout(swmenu.menucltim);
$navstatus
</script>
MENU
}
}
if ($ENV{QUERY_STRING} eq 'turningOffExternal') {
$env{'environment.remotenavmap'}='off';
}
# Create the nav map
my $navmap = Apache::lonnavmaps::navmap->new();
if (!defined($navmap)) {
my $requrl = $r->uri;
$env{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";
return HTTP_NOT_ACCEPTABLE;
}
$r->send_http_header;
# ------------------------------------------------------------ Get query string
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register','sort','showOnlyHomework','postsymb']);
# ----------------------------------------------------- Force menu registration
my $body_only='';
my $js;
if ($env{'environment.remotenavmap'} eq 'on') {
$js='<script type="text/javascript">
function collapse() {
this.document.location="/adm/navmaps?collapseExternal";
}
</script>';
$body_only=1;
}
# Header
my $course_type = &Apache::loncommon::course_type();
$r->print(&Apache::loncommon::start_page('Navigate '.$course_type.
' Contents',
$js,
{'only_body' => $body_only,
'force_register' =>
$env{'form.register'},}));
$r->print('<script type="text/javascript">window.focus();</script>');
$r->rflush();
# Check that it's defined
if (!($navmap->courseMapDefined())) {
$r->print(&Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',undef,'RAT'));
$r->print('<span class="LC_error">'.&mt('Coursemap undefined.').
'</span>' .
&Apache::loncommon::end_page());
return OK;
}
# See if there's only one map in the top-level, if we don't
# already have a filter... if so, automatically display it
# (older code; should use retrieveResources)
if ($ENV{QUERY_STRING} !~ /filter/) {
my $iterator = $navmap->getIterator(undef, undef, undef, 0);
my $curRes;
my $sequenceCount = 0;
my $sequenceId;
while ($curRes = $iterator->next()) {
if (ref($curRes) && $curRes->is_sequence()) {
$sequenceCount++;
$sequenceId = $curRes->map_pc();
}
}
if ($sequenceCount == 1) {
# The automatic iterator creation in the render call
# will pick this up. We know the condition because
# the defined($env{'form.filter'}) also ensures this
# is a fresh call.
$env{'form.filter'} = "$sequenceId";
}
}
if ($ENV{QUERY_STRING} eq 'launchExternal') {
$r->print('
<form name="returnwin" action="/adm/flip?postdata=navlaunch%3a"
method="post" target="loncapaclient">
</form>');
$r->print('
<script type="text/javascript">
this.document.returnwin.submit();
</script>');
}
if ($env{'environment.remotenavmap'} ne 'on') {
$r->print(&launch_win('link','yes',\%toplinkitems));
}
if ($env{'environment.remotenavmap'} eq 'on') {
&Apache::lonnavmaps::add_linkitem(\%toplinkitems,'closenav',
'collapse()',
"Close navigation window");
}
# Check to see if the student is jumping to next open, do-able problem
if ($ENV{QUERY_STRING} =~ /^jumpToFirstHomework/) {
# Find the next homework problem that they can do.
my $iterator = $navmap->getIterator(undef, undef, undef, 1);
my $curRes;
my $foundDoableProblem = 0;
my $minimumduedate;
my $now = time();
while ($curRes = $iterator->next()) {
if (ref($curRes) && $curRes->is_problem()) {
my $status = $curRes->status();
my $thisduedate=$curRes->duedate();
if ($thisduedate > $now
&& $curRes->completable()) {
$foundDoableProblem = 1;
if (!defined($minimumduedate)
|| $thisduedate<$minimumduedate) {
# Pop open all previous maps
my $stack = $iterator->getStack();
pop @$stack; # last resource in the stack is the problem
# itself, which we don't need in the map stack
my @mapPcs = map {$_->map_pc()} @$stack;
$env{'form.filter'} = join(',', @mapPcs);
# Mark as both "here" and "jump"
$env{'form.postsymb'} = $curRes->symb();
$minimumduedate=$thisduedate;
}
}
}
}
# If we found no problems, print a note to that effect.
if (!$foundDoableProblem) {
$r->print("<font size='+2'>All homework assignments have been completed.</font><br /><br />");
}
} else {
&Apache::lonnavmaps::add_linkitem(\%toplinkitems,'firsthomework',
'location.href="navmaps?jumpToFirstHomework"',
"Show my first due problem");
}
my $suppressEmptySequences = 0;
my $filterFunc = undef;
my $resource_no_folder_link = 0;
# Display only due homework.
my $showOnlyHomework = 0;
if ($env{'form.showOnlyHomework'} eq "1") {
$showOnlyHomework = 1;
$suppressEmptySequences = 1;
$filterFunc = sub { my $res = shift;
return $res->completable() || $res->is_map();
};
&Apache::lonnavmaps::add_linkitem(\%toplinkitems,'everything',
'location.href="navmaps?sort='.$env{'form.sort'}.'"',
"Show everything");
$r->print("<p><font size='+2'>".&mt("Uncompleted Problems")."</font></p>");
$env{'form.filter'} = '';
$env{'form.condition'} = 1;
$resource_no_folder_link = 1;
} else {
&Apache::lonnavmaps::add_linkitem(\%toplinkitems,'uncompleted',
'location.href="navmaps?sort='.$env{'form.sort'}.
'&showOnlyHomework=1"',
"Show only uncompleted problems");
}
my %selected=($env{'form.sort'} => 'selected=on');
my $sort_html=("<form>
<nobr>
<input type=\"hidden\" name=\"showOnlyHomework\" value=\"".$env{'form.showOnlyHomework'}."\" />
<input type=\"submit\" value=\"".&mt('Sort by:')."\" />
<select name=\"sort\">
<option value=\"default\" $selected{'default'}>".&mt('Default')."</option>
<option value=\"title\" $selected{'title'} >".&mt('Title')."</option>
<option value=\"duedate\" $selected{'duedate'}>".&mt('Duedate')."</option>
<option value=\"discussion\" $selected{'discussion'}>".&mt('Has New Discussion')."</option>
</select>
</nobr>
</form>");
# renderer call
my $renderArgs = { 'cols' => [0,1,2,3],
'sort' => $env{'form.sort'},
'url' => '/adm/navmaps',
'navmap' => $navmap,
'suppressNavmap' => 1,
'suppressEmptySequences' => $suppressEmptySequences,
'filterFunc' => $filterFunc,
'resource_no_folder_link' => $resource_no_folder_link,
'sort_html'=> $sort_html,
'r' => $r,
'caller' => 'navmapsdisplay',
'linkitems' => \%toplinkitems};
my $render = &Apache::lonnavmaps::render($renderArgs);
# If no resources were printed, print a reassuring message so the
# user knows there was no error.
if ($renderArgs->{'counter'} == 0) {
if ($showOnlyHomework) {
$r->print("<p><font size='+1'>".&mt("All homework is currently completed").".</font></p>");
} else { # both jumpToFirstHomework and normal use the same: course must be empty
$r->print("<p><font size='+1'>This course is empty.</font></p>");
}
}
#my $td=&tv_interval($t0);
#$r->print("<br />$td");
$r->print(&Apache::loncommon::end_page());
$r->rflush();
return OK;
}
sub launch_win {
my ($mode,$script,$toplinkitems,$firsttime)=@_;
my $result;
if ($script ne 'no') {
$result.='<script type="text/javascript">';
}
if ($firsttime) {
$result.='function launch_navmapwin() {
newWindow=open(\'/adm/navmaps?launchExternalRoles\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
}';
} else {
$result.='function launch_navmapwin() {
newWindow=open(\'/adm/navmaps?launchExternal\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
}';
}
if ($mode eq 'now') {
$result.="\nlaunch_navmapwin();\n";
}
if ($script ne 'no') {
$result.='</script>';
}
if ($mode eq 'link') {
&Apache::lonnavmaps::add_linkitem($toplinkitems,'launchnav',
'launch_navmapwin()',
"Launch navigation window");
}
return $result;
}
1;
__END__
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