version 1.39, 2003/08/15 14:14:43
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version 1.52, 2005/03/01 00:22:57
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Line 26
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Line 26
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# (Page Handler |
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# |
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# (TeX Content Handler |
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# |
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# 05/29/00,05/30 Gerd Kortemeyer) |
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# 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23, |
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# 10/02 Gerd Kortemeyer) |
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# |
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# 10/03,10/05,10/06,10/07,10/09,10/10,10/11,10/16,10/17, |
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# 11/14,11/16, |
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# 10/01/01,05/01,05/28,07/05 Gerd Kortemeyer |
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package Apache::lonpageflip; |
package Apache::lonpageflip; |
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Line 82 sub fullmove {
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Line 71 sub fullmove {
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return($rid,$mapurl); |
return($rid,$mapurl); |
} |
} |
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sub hash_src { |
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my ($id)=@_; |
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if ($hash{'encrypted_'.$id}) { |
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return &Apache::lonenc::encrypted($hash{'src_'.$id}); |
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} |
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return $hash{'src_'.$id}; |
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} |
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sub move { |
sub move { |
my ($rid,$mapurl,$direction)=@_; |
my ($rid,$mapurl,$direction)=@_; |
my $startoutrid=$rid; |
my $startoutrid=$rid; |
Line 120 sub move {
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Line 117 sub move {
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
$mapurl=$hash{'src_'.$next}; |
$mapurl=$hash{'src_'.$next}; |
$next=$hash{'map_start_'.$hash{'src_'.$next}}; |
$next=$hash{'map_start_'.$hash{'src_'.$next}}; |
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} elsif ( |
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# This jumps back up from an empty sequence, to a page up one level |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'page') { |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
} |
} |
} elsif |
} elsif |
((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
Line 156 sub move {
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Line 157 sub move {
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
$mapurl=$hash{'src_'.$next}; |
$mapurl=$hash{'src_'.$next}; |
$next=$hash{'map_finish_'.$hash{'src_'.$next}}; |
$next=$hash{'map_finish_'.$hash{'src_'.$next}}; |
} |
} elsif ( |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'page') { |
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# This jumps back up from an empty sequence, to a page up one level |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
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} |
} elsif |
} elsif |
((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
# This comes back up from a map (going up one level); |
# This comes back up from a map (going up one level); |
Line 174 sub handler {
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Line 179 sub handler {
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# ------------------------------------------- Set document type for header only |
# ------------------------------------------- Set document type for header only |
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if ($r->header_only) { |
if ($r->header_only) { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
return OK; |
return OK; |
} |
} |
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my %cachehash=(); |
my %cachehash=(); |
Line 189 sub handler {
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Line 194 sub handler {
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if (($ENV{'form.postdata'})&&($ENV{'request.course.fn'})) { |
if (($ENV{'form.postdata'})&&($ENV{'request.course.fn'})) { |
$ENV{'form.postdata'}=~/(\w+)\:(.*)/; |
$ENV{'form.postdata'}=~/(\w+)\:(.*)/; |
my $direction=$1; |
my $direction=$1; |
my $currenturl=&Apache::lonnet::unescape($2); |
my $currenturl=$2; |
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if ($currenturl=~m|^/enc/|) { |
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$currenturl=&Apache::lonenc::unencrypted($currenturl); |
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} |
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$currenturl=~s/\.\d+\.(\w+)$/\.$1/; |
if ($direction eq 'return') { |
if ($direction eq 'return') { |
# -------------------------------------------------------- Return to last known |
# -------------------------------------------------------- Return to last known |
my $last; |
my $last; |
Line 201 sub handler {
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Line 210 sub handler {
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my $newloc; |
my $newloc; |
if (($last) && (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
if (($last) && (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
&GDBM_READER(),0640))) { |
&GDBM_READER(),0640))) { |
my ($murl,$fn)=split(/\_\_\_/,$last); |
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
my $id; |
$id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id; |
($murl,$id,$fn)=split(/\_\_\_/,&Apache::lonnet::symbread($fn)); |
$newloc=$hash{'src_'.$id}; |
$newloc=$hash{'src_'. |
if ($newloc) { |
$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id}; |
if ($hash{'encrypted_'.$id}) { $newloc=&Apache::lonenc::encrypted($newloc); } |
unless ($newloc) { $newloc='/adm/noidea.html'; } |
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} else { |
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$newloc='/adm/noidea.html'; |
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} |
untie %hash; |
untie %hash; |
} else { |
} else { |
$newloc='/adm/noidea.html'; |
$newloc='/adm/noidea.html'; |
} |
} |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->header_out(Location => |
$r->header_out(Location => |
'http://'.$ENV{'HTTP_HOST'}.$newloc); |
'http://'.$ENV{'HTTP_HOST'}.$newloc); |
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Line 230 sub handler {
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Line 242 sub handler {
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untie(%hash); |
untie(%hash); |
} |
} |
if ($last) { |
if ($last) { |
$currenturl=&Apache::lonnet::clutter((split(/\_\_\_/,$last))[1]); |
$currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]); |
} else { |
} else { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->header_out(Location => |
$r->header_out(Location => |
'http://'.$ENV{'HTTP_HOST'}.'/adm/noidea.html'); |
'http://'.$ENV{'HTTP_HOST'}.'/adm/noidea.html'); |
return REDIRECT; |
return REDIRECT; |
Line 242 sub handler {
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Line 254 sub handler {
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my $position; |
my $position; |
if ($position=Apache::lonnet::symbread($currenturl)) { |
if ($position=Apache::lonnet::symbread($currenturl)) { |
# ------------------------------------------------------------------------- Yes |
# ------------------------------------------------------------------------- Yes |
my ($startoutmap,$mapnum,$thisurl)=split(/\_\_\_/,$position); |
my ($startoutmap,$mapnum,$thisurl)=&Apache::lonnet::decode_symb($position); |
$cachehash{$startoutmap}{$thisurl}=$mapnum; |
$cachehash{$startoutmap}{$thisurl}=[$thisurl,$mapnum]; |
$cachehash{$startoutmap}{'last_known'}= |
$cachehash{$startoutmap}{'last_known'}= |
&Apache::lonnet::declutter($currenturl); |
[&Apache::lonnet::declutter($currenturl),$mapnum]; |
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# ============================================================ Tie the big hash |
# ============================================================ Tie the big hash |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
Line 259 sub handler {
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Line 271 sub handler {
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# -------------------------------------- Do we have one and only one empty URL? |
# -------------------------------------- Do we have one and only one empty URL? |
my $safecount=0; |
my $safecount=0; |
while (($next) && ($next!~/\,/) && |
while (($next) && ($next!~/\,/) && |
((!$hash{'src_'.$next}) || ($hash{'randomout_'.$next})) |
((!$hash{'src_'.$next}) || |
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((!$ENV{'request.role.adv'}) && $hash{'randomout_'.$next})) |
&& ($safecount<10000)) { |
&& ($safecount<10000)) { |
($next,$endupmap)=&move($next,$endupmap,$direction); |
($next,$endupmap)=&move($next,$endupmap,$direction); |
$safecount++; |
$safecount++; |
Line 270 sub handler {
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Line 283 sub handler {
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@possibilities=split(/\,/,$next); |
@possibilities=split(/\,/,$next); |
if ($#possibilities==0) { |
if ($#possibilities==0) { |
# ---------------------------------------------- Only one possibility, redirect |
# ---------------------------------------------- Only one possibility, redirect |
$redirecturl=$hash{'src_'.$next}; |
$redirecturl=&hash_src($next); |
$cachehash{$endupmap} |
$cachehash{$endupmap}{$redirecturl}= |
{&Apache::lonnet::declutter($redirecturl)} |
[$redirecturl,(split(/\./,$next))[1]]; |
=(split(/\./,$next))[1]; |
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} else { |
} else { |
# ------------------------ There are multiple possibilities for a next resource |
# ------------------------ There are multiple possibilities for a next resource |
$multichoice=1; |
$multichoice=1; |
Line 288 sub handler {
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Line 300 sub handler {
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$second.'___'.$symbSrc); |
$second.'___'.$symbSrc); |
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my ($choicemap,$choiceres)=split(/\./,$_); |
my ($choicemap,$choiceres)=split(/\./,$_); |
$cachehash |
my $map=&Apache::lonnet::declutter($hash{'src_'.$choicemap}); |
{&Apache::lonnet::declutter($hash{'src_'.$choicemap})} |
my $url=$multichoicehash{'src_'.$_}; |
{&Apache::lonnet::declutter( |
$cachehash{$map}{$url}=[$url,$choiceres]; |
$multichoicehash |
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{'src_'.$_} |
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)} |
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=$choiceres; |
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} @possibilities; |
} @possibilities; |
} |
} |
} else { |
} else { |
Line 304 sub handler {
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Line 312 sub handler {
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# ----------------- The program must come past this point to untie the big hash |
# ----------------- The program must come past this point to untie the big hash |
untie(%hash); |
untie(%hash); |
# --------------------------------------------------------- Store position info |
# --------------------------------------------------------- Store position info |
$cachehash{$startoutmap}{'last_direction'}=$direction; |
$cachehash{$startoutmap}{'last_direction'}=[$direction,'notasymb']; |
foreach my $thismap (keys %cachehash) { |
foreach my $thismap (keys %cachehash) { |
&Apache::lonnet::symblist($thismap,%{$cachehash{$thismap}}); |
my $mapnum=$cachehash{$thismap}->{'mapnum'}; |
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delete($cachehash{$thismap}->{'mapnum'}); |
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&Apache::lonnet::symblist($thismap, |
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%{$cachehash{$thismap}}); |
} |
} |
# ============================================== Do not return before this line |
# ============================================== Do not return before this line |
if ($redirecturl) { |
if ($redirecturl) { |
Line 331 sub handler {
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Line 342 sub handler {
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&Apache::lonnet::appenv('user.criticalcheck.time'=>time); |
&Apache::lonnet::appenv('user.criticalcheck.time'=>time); |
} |
} |
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$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->header_out(Location => |
$r->header_out(Location => |
'http://'.$ENV{'HTTP_HOST'}.$redirecturl); |
'http://'.$ENV{'HTTP_HOST'}.$redirecturl); |
return REDIRECT; |
return REDIRECT; |
} else { |
} else { |
# --------------------------------------------------------- There was a problem |
# --------------------------------------------------------- There was a problem |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
if ($#possibilities>0) { |
if ($#possibilities>0) { |
my $bodytag= |
my $bodytag= |
Line 388 ENDNONE
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Line 399 ENDNONE
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} |
} |
} else { |
} else { |
# ---------------------------------------- No, could not determine where we are |
# ---------------------------------------- No, could not determine where we are |
$r->internal_redirect('/adm/ambiguous'); |
if ( &Apache::lonnet::mod_perl_version() == 2 ) { |
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&Apache::lonnet::cleanenv(); |
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} |
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$r->internal_redirect('/adm/ambiguous'); |
} |
} |
} else { |
} else { |
# -------------------------- Class was not initialized or page fliped strangely |
# -------------------------- Class was not initialized or page fliped strangely |