version 1.11, 2002/05/23 15:07:55
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version 1.24, 2005/04/07 06:56:27
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Line 28
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# |
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# (Handler to resolve ambiguous file locations |
# (Handler to resolve ambiguous file locations |
# |
# |
# (TeX Content Handler |
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# |
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# 05/29/00,05/30,10/11 Gerd Kortemeyer) |
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# |
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# 10/11,10/12 Gerd Kortemeyer) |
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# |
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# 10/16 Gerd Kortemeyer |
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package Apache::lonsequence; |
package Apache::lonsequence; |
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Line 45 use GDBM_File;
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Line 38 use GDBM_File;
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use Apache::lonratedt; |
use Apache::lonratedt; |
use Apache::lonratsrv; |
use Apache::lonratsrv; |
use Apache::lonpageflip; |
use Apache::lonpageflip; |
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use Apache::loncommon; |
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use Apache::lonlocal; |
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# ----------------------------------------------------------- Could not resolve |
my %selhash; |
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my $successtied; |
sub getlost { |
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my ($r,$errmsg)=@_; |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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$r->print( |
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'<head><title>Unknown Error</title></head><body bgcolor="#FFFFFF"><h1>'. |
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'LON-CAPA</h1>Could not handle sequence resource reference.<p>'.$errmsg. |
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'</body></html>'); |
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} |
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# ----------------------------------------- Attempt to read from resource space |
# ----------------------------------------- Attempt to read from resource space |
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Line 71 sub attemptread {
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Line 56 sub attemptread {
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} |
} |
} |
} |
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sub mapread { |
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my $fn=shift; |
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&Apache::lonnet::repcopy($fn); |
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if (-e $fn) { |
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return &Apache::lonratedt::mapread($fn,''); |
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} else { |
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return (); |
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} |
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} |
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# ---------------------------------------------------------------- View Handler |
# ---------------------------------------------------------------- View Handler |
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sub viewmap { |
sub viewmap { |
my ($r,$url)=@_; |
my ($r,$url)=@_; |
$r->print('<html>'); |
$r->print('<html>'); |
if ($ENV{'form.forceselect'}) { $r->print(<<ENDSCRIPT); |
if ($env{'form.forceselect'}) { $r->print(<<ENDSCRIPT); |
<script> |
<script> |
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function select_group() { |
function select_group() { |
window.location="/adm/groupsort?catalogmode=groupimport&mode=rat&acts="+document.forms.fileattr.acts.value; |
window.location="/adm/groupsort?catalogmode=groupsec&mode=rat&acts="+document.forms.fileattr.acts.value; |
} |
} |
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function queue(val) { |
function queue(val) { |
Line 99 function queue(val) {
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Line 94 function queue(val) {
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</script> |
</script> |
ENDSCRIPT |
ENDSCRIPT |
} |
} |
$r->print('<body bgcolor="#FFFFFF">'); |
$r->print(&Apache::loncommon::bodytag('Map Contents').'<h1>'.$url.'</h1>'); |
if ($ENV{'form.forceselect'}) { $r->print(<<ENDSELECT); |
# ------------------ This is trying to select. Provide buttons and tie %selhash |
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if ($env{'form.forceselect'}) { $r->print(<<ENDSELECT); |
<form name=fileattr><input type=hidden name=acts value=''> |
<form name=fileattr><input type=hidden name=acts value=''> |
<input type="button" name="close" value='CLOSE' onClick="self.close()"> |
<input type="button" name="close" value='CLOSE' onClick="self.close()"> |
<input type="button" name="groupimport" value='GROUP IMPORT' |
<input type="button" name="groupimport" value='GROUP IMPORT' |
onClick="javascript:select_group()"> |
onClick="javascript:select_group()"> |
</form> |
</form> |
ENDSELECT |
ENDSELECT |
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my $diropendb = |
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"/home/httpd/perl/tmp/$env{'user.domain'}\_$env{'user.name'}_groupsec.db"; |
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if (tie(%selhash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { |
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if ($env{'form.launch'} eq '1') { |
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&start_fresh_session(); |
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} |
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$successtied=1; |
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# - Evaluate actions from previous page (both cumulatively and chronologically) |
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if ($env{'form.catalogmode'} eq 'groupimport') { |
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my $acts=$env{'form.acts'}; |
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my @Acts=split(/b/,$acts); |
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my %ahash; |
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my %achash; |
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my $ac=0; |
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# some initial hashes for working with data |
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foreach (@Acts) { |
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my ($state,$ref)=split(/a/); |
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$ahash{$ref}=$state; |
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$achash{$ref}=$ac; |
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$ac++; |
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} |
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# sorting through the actions and changing the tied database hash |
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foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) { |
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my $key=$_; |
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if ($ahash{$key} eq '1') { |
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$selhash{'store_'.$selhash{'pre_'.$key.'_link'}}= |
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$selhash{'pre_'.$key.'_title'}; |
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$selhash{'storectr_'.$selhash{'pre_'.$key.'_link'}}= |
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$selhash{'storectr'}+0; |
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$selhash{'storectr'}++; |
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} |
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if ($ahash{$key} eq '0') { |
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if ($selhash{'store_'.$selhash{'pre_'.$key.'_link'}}) { |
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delete $selhash{'store_'.$selhash{'pre_'.$key.'_link'}}; |
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} |
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} |
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} |
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# deleting the previously cached listing |
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foreach (keys %selhash) { |
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if ($_ =~ /^pre_/ && $_ =~/link$/) { |
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my $key = $_; |
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$key =~ s/^pre_//; |
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$key =~ s/_[^_]*$//; |
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delete $selhash{'pre_'.$key.'_title'}; |
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delete $selhash{'pre_'.$key.'_link'}; |
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} |
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} |
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} |
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# - |
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} |
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} |
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# ----------------------------- successtied is now '1' if in working selectmode |
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my ($errtext,$fatal)=&mapread(&Apache::lonnet::filelocation('',$url),''); |
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if ($fatal==1) { |
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$r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />'); |
} |
} |
my $idx=0; |
my $idx=0; |
foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) { |
foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) { |
if (defined($_)) { |
if (defined($_)) { |
$idx++; |
$idx++; |
if ($ENV{'form.forceselect'}) { |
if ($successtied) { |
$r->print('<form name="form'.$idx.'">'); |
$r->print('<form name="form'.$idx.'">'); |
} |
} |
my ($title,$url)=split(/\:/,$_); |
my ($title,$url)=split(/\:/,$_); |
$title=~s/\&colon\;/\:/g; |
$title=~s/\&colon\;/\:/g; |
$url=~s/\&colon\;/\:/g; |
$url=~s/\&colon\;/\:/g; |
unless ($title) { $title=(split(/\//,$url))[-1] }; |
unless ($title) { $title=(split(/\//,$url))[-1] }; |
unless ($title) { $title='<i>Empty</i>'; } |
unless ($title) { $title='<i>'.&mt('Empty').'</i>'; } |
if ($url) { |
if ($url) { |
if ($ENV{'form.forceselect'}) { |
if ($successtied) { |
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my $checked=''; |
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if ($selhash{'store_'.$url}) { |
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$checked=" checked"; |
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} |
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$selhash{"pre_${idx}_link"}=$url; |
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$selhash{"pre_${idx}_title"}=$title; |
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$r->print(<<ENDCHECKBOX); |
$r->print(<<ENDCHECKBOX); |
<input type='checkbox' name='filelink' |
<input type='checkbox' name='filelink' |
value='$url' onClick='javascript:queue("form$idx")' > |
value='$url' onClick='javascript:queue("form$idx")'$checked> |
<input type='hidden' name='title' value='$title'> |
<input type='hidden' name='title' value='$title'> |
ENDCHECKBOX |
ENDCHECKBOX |
} |
} |
Line 132 ENDCHECKBOX
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Line 191 ENDCHECKBOX
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} |
} |
$r->print(&Apache::lonratsrv::qtescape($title)); |
$r->print(&Apache::lonratsrv::qtescape($title)); |
if ($url) { $r->print('</a>'); } |
if ($url) { $r->print('</a>'); } |
if ($ENV{'form.forceselect'}) { |
if ($successtied) { |
$r->print('</form>'); |
$r->print('</form>'); |
} else { |
} else { |
$r->print('<br>'); |
$r->print('<br>'); |
Line 140 ENDCHECKBOX
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Line 199 ENDCHECKBOX
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} |
} |
} |
} |
$r->print('</body></html>'); |
$r->print('</body></html>'); |
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if ($successtied) { |
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untie %selhash; |
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} |
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} |
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# ----------------------------------------------------------- Clean out selhash |
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sub start_fresh_session { |
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foreach (keys %selhash) { |
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if ($_ =~ /^pre_/) { |
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delete $selhash{$_}; |
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} |
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if ($_ =~ /^store/) { |
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delete $selhash{$_}; |
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} |
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} |
} |
} |
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# ================================================================ Main Handler |
# ================================================================ Main Handler |
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sub handler { |
sub handler { |
my $r=shift; |
my $r=shift; |
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if ($r->header_only) { |
if ($r->header_only) { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
return OK; |
return OK; |
} |
} |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
['forceselect']); |
['forceselect','launch']); |
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my %hash; |
my %hash; |
my %bighash; |
my %bighash; |
my $requrl=$r->uri; |
my $requrl=$r->uri; |
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$successtied=0; |
# ------------------------------------------------------------ Tie symb db file |
# ------------------------------------------------------------ Tie symb db file |
my $disurl=''; |
my $disurl=''; |
my $dismapid=''; |
my $dismapid=''; |
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my $exitdisid = ''; |
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my $arrow_dir = ''; |
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if (($ENV{'request.course.fn'}) && (!$ENV{'form.forceselect'})) { |
if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) { |
my $last; |
my $last; |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
&GDBM_READER,0640)) { |
&GDBM_READER(),0640)) { |
$last=$hash{'last_direction'}; |
$last=$hash{'last_direction'}; |
untie(%hash); |
untie(%hash); |
} |
} |
my $direction=''; |
my $direction=''; |
my $prevmap=''; |
my $prevmap=''; |
if ($last) { |
if ($last) { |
($prevmap,$direction)=(split(/\_\_\_/,$last)); |
($prevmap,undef,$direction)=&Apache::lonnet::decode_symb($last); |
} |
} |
# ------------------------------------------------------------- Tie big db file |
# ------------------------------------------------------------- Tie big db file |
if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', |
&GDBM_READER,0640)) { |
&GDBM_READER(),0640)) { |
my $disid=''; |
my $disid=''; |
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my $randomout =''; |
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if ($direction eq 'back') { |
if ($direction eq 'back') { |
$disid=$bighash{'map_finish_'.$requrl}; |
$disid=$bighash{'map_finish_'.$requrl}; |
} else { |
} else { |
$disid=$bighash{'map_start_'.$requrl}; |
$disid=$bighash{'map_start_'.$requrl}; |
} |
} |
if ($disid) { |
if ($disid) { |
$disurl=$bighash{'src_'.$disid}; |
$disurl=$bighash{'src_'.$disid}; |
$dismapid=(split(/\./,$disid))[1]; |
$dismapid=(split(/\./,$disid))[1]; |
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$randomout = $bighash{'randomout_'.$disid}; |
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} elsif (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
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&GDBM_READER(),0640)) { |
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$last=$hash{'last_known'}; |
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untie(%hash); |
} |
} |
# ------------------------- If this is an empty one, skip to next non-empty one |
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if ((!$disurl) && ($disid)) { |
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# ----------- If this is an empty one, or hidden, skip to next non-empty or non-hidden one |
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while ( ((!$disurl) && ($disid)) || ($randomout && $disid) ) { |
$direction=($direction?$direction:'forward'); |
$direction=($direction?$direction:'forward'); |
($disid,$requrl)= |
($disid,$requrl)= |
&Apache::lonpageflip::fullmove($disid, |
&Apache::lonpageflip::fullmove($disid, |
Line 199 sub handler {
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Line 285 sub handler {
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if ($disid) { |
if ($disid) { |
$disurl=$bighash{'src_'.$disid}; |
$disurl=$bighash{'src_'.$disid}; |
$dismapid=(split(/\./,$disid))[1]; |
$dismapid=(split(/\./,$disid))[1]; |
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$randomout = $bighash{'randomout_'.$disid}; |
} |
} |
} |
} |
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$exitdisid = $disid; |
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$arrow_dir = $direction; |
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# --------------------------------------- Untie hash, make sure to come by here |
# --------------------------------------- Untie hash, make sure to come by here |
untie(%bighash); |
untie(%bighash); |
Line 208 sub handler {
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Line 297 sub handler {
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} |
} |
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# now either disurl is set (going to first page), or we need another display |
# now either disurl is set (going to first page), or we need another display |
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if ($disurl) { |
if ($disurl) { |
# -------------------------------------------------- Has first or last resource |
# -------------------------------------------------- Has first or last resource |
&Apache::lonnet::symblist($requrl,$disurl => $dismapid, |
&Apache::lonnet::symblist($requrl,$disurl => [$disurl,$dismapid], |
'last_known' => &Apache::lonnet::declutter($disurl)); |
'last_known' => [$disurl,$dismapid]); |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->header_out(Location => 'http://'.$ENV{'HTTP_HOST'}.$disurl); |
$r->header_out(Location => 'http://'.$ENV{'HTTP_HOST'}.$disurl); |
return REDIRECT; |
return REDIRECT; |
} else { |
} else { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
&viewmap($r,$requrl); |
if ($exitdisid eq '' && $arrow_dir ne '') { |
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my %lt =&Apache::lonlocal::texthash( |
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'back' => 'beginning', |
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'forward' => 'end', |
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'emfo' => 'Empty Folder/Sequence', |
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'nere' => 'Next resource could not be displayed', |
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'goba' => 'Go Back', |
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'nacc' => 'Navigate Course Content', |
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); |
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my $warnmsg = 'As all folders and sequences '; |
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if ($arrow_dir eq 'forward') { |
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$warnmsg .= &mt('following the current resource were empty').','; |
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} elsif ($arrow_dir eq 'back') { |
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$warnmsg .= &mt('preceding the current resource were empty').','; |
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} |
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$warnmsg .= &mt('you have now reached the').' '.$lt{$arrow_dir}.' '.&mt('of the course.'); |
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my $bodytag=&Apache::loncommon::bodytag('Empty Folder/Sequence'); |
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$r->print(<<ENDNONE); |
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<head><title>$lt{'emfo'}</title></head> |
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$bodytag |
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<h3>$lt{'nere'}</h3> |
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<p>$warnmsg</p> |
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<ul> |
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<li><a href="javascript:history.go(-1)">$lt{'goba'}</a></li> |
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<li><a href="/adm/navmaps">$lt{'nacc'}</a></li> |
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</ul> |
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</body> |
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</html> |
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ENDNONE |
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} else { |
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&viewmap($r,$requrl); |
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} |
return OK; |
return OK; |
} |
} |
} |
} |