version 1.12, 2003/04/17 17:21:24
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version 1.23, 2003/05/07 19:24:07
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Line 84 Of course this does nothing. In order fo
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Line 84 Of course this does nothing. In order fo
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necessary to put actual elements into the wizard. Documentation for each |
necessary to put actual elements into the wizard. Documentation for each |
of these elements follows. |
of these elements follows. |
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=head2 Creating a Helper With Code, Not XML |
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In some situations, such as the printing wizard (see lonprintout.pm), |
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writing the helper in XML would be too complicated, because of scope |
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issues or the fact that the code actually outweighs the XML. It is |
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possible to create a helper via code, though it is a little odd. |
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Creating a helper via code is more like issuing commands to create |
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a helper then normal code writing. For instance, elements will automatically |
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be added to the last state created, so it's important to create the |
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states in the correct order. |
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First, create a new helper: |
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use Apache::lonhelper; |
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my $helper = Apache::lonhelper::new->("Helper Title"); |
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Next you'll need to manually add states to the helper: |
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Apache::lonhelper::state->new("STATE_NAME", "State's Human Title"); |
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You don't need to save a reference to it because all elements up until |
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the next state creation will automatically be added to this state. |
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Elements are created by populating the $paramHash in |
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Apache::lonhelper::paramhash. To prevent namespace issues, retrieve |
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a reference to that has with getParamHash: |
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my $paramHash = Apache::lonhelper::getParamHash(); |
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You will need to do this for each state you create. |
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Populate the $paramHash with the parameters for the element you wish |
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to add next; the easiest way to find out what those entries are is |
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to read the code. Some common ones are 'variable' to record the variable |
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to store the results in, and NEXTSTATE to record a next state transition. |
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Then create your element: |
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$paramHash->{MESSAGETEXT} = "This is a message."; |
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Apache::lonhelper::message->new(); |
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The creation will take the $paramHash and bless it into a |
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Apache::lonhelper::message object. To create the next element, you need |
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to get a reference to the new, empty $paramHash: |
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$paramHash = Apache::lonhelper::getParamHash(); |
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and you can repeat creating elements that way. You can add states |
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and elements as needed. |
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See lonprintout.pm, subroutine printHelper for an example of this, where |
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we dynamically add some states to prevent security problems, for instance. |
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Normally the machinery in the XML format is sufficient; dynamically |
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adding states can easily be done by wrapping the state in a <condition> |
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tag. This should only be used when the code dominates the XML content, |
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the code is so complicated that it is difficult to get access to |
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all of the information you need because of scoping issues, or so much |
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of the information used is persistent because would-be <exec> or |
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<eval> blocks that using the {DATA} mechanism results in hard-to-read |
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and -maintain code. |
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It is possible to do some of the work with an XML fragment parsed by |
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lonxml; again, see lonprintout.pm for an example. In that case it is |
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imperative that you call B<Apache::lonhelper::registerHelperTags()> |
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before parsing XML fragments and B<Apache::lonhelper::unregisterHelperTags()> |
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when you are done. See lonprintout.pm for examples of this usage in the |
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printHelper subroutine. |
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=cut |
=cut |
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package Apache::lonhelper; |
package Apache::lonhelper; |
Line 122 my $substate;
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Line 193 my $substate;
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# end of the element tag is located. |
# end of the element tag is located. |
my $paramHash; |
my $paramHash; |
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# For debugging purposes, one can send a second parameter into this |
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# function, the 'uri' of the helper you wish to have rendered, and |
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# call this from other handlers. |
sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
$ENV{'request.uri'} = $r->uri(); |
my $uri = shift; |
my $filename = '/home/httpd/html' . $r->uri(); |
if (!defined($uri)) { $uri = $r->uri(); } |
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$ENV{'request.uri'} = $uri; |
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my $filename = '/home/httpd/html' . $uri; |
my $fh = Apache::File->new($filename); |
my $fh = Apache::File->new($filename); |
my $file; |
my $file; |
read $fh, $file, 100000000; |
read $fh, $file, 100000000; |
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Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING}); |
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# Send header, don't cache this page |
# Send header, don't cache this page |
if ($r->header_only) { |
if ($r->header_only) { |
if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
Line 154 sub handler {
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Line 228 sub handler {
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# xml parsing |
# xml parsing |
&Apache::lonxml::xmlparse($r, 'helper', $file); |
&Apache::lonxml::xmlparse($r, 'helper', $file); |
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$helper->process(); |
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$r->print($helper->display()); |
$r->print($helper->display()); |
return OK; |
return OK; |
} |
} |
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sub registerHelperTags { |
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for my $tagList (@helperTags) { |
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Apache::lonxml::register($tagList->[0], $tagList->[1]); |
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} |
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} |
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sub unregisterHelperTags { |
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for my $tagList (@helperTags) { |
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Apache::lonxml::deregister($tagList->[0], $tagList->[1]); |
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} |
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} |
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sub start_helper { |
sub start_helper { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
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Line 165 sub start_helper {
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Line 253 sub start_helper {
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return ''; |
return ''; |
} |
} |
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for my $tagList (@helperTags) { |
registerHelperTags(); |
Apache::lonxml::register($tagList->[0], $tagList->[1]); |
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} |
Apache::lonhelper::helper->new($token->[2]{'title'}); |
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$helper = Apache::lonhelper::helper->new($token->[2]{'title'}); |
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return ''; |
return ''; |
} |
} |
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Line 180 sub end_helper {
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Line 266 sub end_helper {
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return ''; |
return ''; |
} |
} |
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for my $tagList (@helperTags) { |
unregisterHelperTags(); |
Apache::lonxml::deregister($tagList->[0], $tagList->[1]); |
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} |
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return ''; |
return ''; |
} |
} |
Line 194 sub start_state {
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Line 278 sub start_state {
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return ''; |
return ''; |
} |
} |
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$state = Apache::lonhelper::state->new($token->[2]{'name'}, |
Apache::lonhelper::state->new($token->[2]{'name'}, |
$token->[2]{'title'}); |
$token->[2]{'title'}); |
return ''; |
return ''; |
} |
} |
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# Use this to get the param hash from other files. |
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sub getParamHash { |
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return $paramHash; |
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} |
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# Use this to get the helper, if implementing elements in other files |
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# (like lonprintout.pm) |
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sub getHelper { |
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return $helper; |
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} |
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# don't need this, so ignore it |
# don't need this, so ignore it |
sub end_state { |
sub end_state { |
return ''; |
return ''; |
Line 231 sub new {
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Line 326 sub new {
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$self->{STATE} = "START"; |
$self->{STATE} = "START"; |
} |
} |
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Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING}); |
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$self->{TOKEN} = $ENV{'form.TOKEN'}; |
$self->{TOKEN} = $ENV{'form.TOKEN'}; |
# If a token was passed, we load that in. Otherwise, we need to create a |
# If a token was passed, we load that in. Otherwise, we need to create a |
# new storage file |
# new storage file |
Line 287 sub new {
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Line 384 sub new {
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# for an example. |
# for an example. |
$self->{DATA} = {}; |
$self->{DATA} = {}; |
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$helper = $self; |
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# Establish the $paramHash |
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$paramHash = {}; |
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bless($self, $class); |
bless($self, $class); |
return $self; |
return $self; |
} |
} |
Line 347 sub registerState {
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Line 449 sub registerState {
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$self->{STATES}{$stateName} = $state; |
$self->{STATES}{$stateName} = $state; |
} |
} |
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# Done in four phases |
sub process { |
# 1: Do the post processing for the previous state. |
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# 2: Do the preprocessing for the current state. |
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# 3: Check to see if state changed, if so, postprocess current and move to next. |
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# Repeat until state stays stable. |
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# 4: Render the current state to the screen as an HTML page. |
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sub display { |
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my $self = shift; |
my $self = shift; |
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my $result = ""; |
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# Phase 1: Post processing for state of previous screen (which is actually |
# Phase 1: Post processing for state of previous screen (which is actually |
# the "current state" in terms of the helper variables), if it wasn't the |
# the "current state" in terms of the helper variables), if it wasn't the |
# beginning state. |
# beginning state. |
if ($self->{STATE} ne "START" || $ENV{"form.SUBMIT"} eq "Next ->") { |
if ($self->{STATE} ne "START" || $ENV{"form.SUBMIT"} eq "Next ->") { |
my $prevState = $self->{STATES}{$self->{STATE}}; |
my $prevState = $self->{STATES}{$self->{STATE}}; |
$prevState->postprocess(); |
$prevState->postprocess(); |
} |
} |
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# Note, to handle errors in a state's input that a user must correct, |
# Note, to handle errors in a state's input that a user must correct, |
Line 372 sub display {
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Line 466 sub display {
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# Phase 2: Preprocess current state |
# Phase 2: Preprocess current state |
my $startState = $self->{STATE}; |
my $startState = $self->{STATE}; |
my $state = $self->{STATES}{$startState}; |
my $state = $self->{STATES}->{$startState}; |
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# Error checking; it is intended that the developer will have |
# For debugging, print something here to determine if you're going |
# checked all paths and the user can't see this! |
# to an undefined state. |
if (!defined($state)) { |
if (!defined($state)) { |
$result .="Error! The state ". $startState ." is not defined."; |
return; |
return $result; |
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} |
} |
$state->preprocess(); |
$state->preprocess(); |
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# Phase 3: While the current state is different from the previous state, |
# Phase 3: While the current state is different from the previous state, |
# keep processing. |
# keep processing. |
while ( $startState ne $self->{STATE} ) |
while ( $startState ne $self->{STATE} && |
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defined($self->{STATES}->{$self->{STATE}}) ) |
{ |
{ |
$startState = $self->{STATE}; |
$startState = $self->{STATE}; |
$state = $self->{STATES}{$startState}; |
$state = $self->{STATES}->{$startState}; |
$state->preprocess(); |
$state->preprocess(); |
} |
} |
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return; |
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} |
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# 1: Do the post processing for the previous state. |
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# 2: Do the preprocessing for the current state. |
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# 3: Check to see if state changed, if so, postprocess current and move to next. |
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# Repeat until state stays stable. |
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# 4: Render the current state to the screen as an HTML page. |
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sub display { |
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my $self = shift; |
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my $state = $self->{STATES}{$self->{STATE}}; |
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my $result = ""; |
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if (!defined($state)) { |
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$result = "<font color='#ff0000'>Error: state '$state' not defined!</font>"; |
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return $result; |
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} |
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# Phase 4: Display. |
# Phase 4: Display. |
my $stateTitle = $state->title(); |
my $stateTitle = $state->title(); |
my $bodytag = &Apache::loncommon::bodytag("$self->{TITLE}",'',''); |
my $bodytag = &Apache::loncommon::bodytag("$self->{TITLE}",'',''); |
Line 402 sub display {
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Line 516 sub display {
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</head> |
</head> |
$bodytag |
$bodytag |
HEADER |
HEADER |
if (!$state->overrideForm()) { $result.="<form name='wizform' method='GET'>"; } |
if (!$state->overrideForm()) { $result.="<form name='helpform' method='GET'>"; } |
$result .= <<HEADER; |
$result .= <<HEADER; |
<table border="0"><tr><td> |
<table border="0"><tr><td> |
<h2><i>$stateTitle</i></h2> |
<h2><i>$stateTitle</i></h2> |
Line 430 HEADER
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Line 544 HEADER
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$result .= "</center>\n"; |
$result .= "</center>\n"; |
} |
} |
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foreach my $key (keys %{$self->{VARS}}) { |
#foreach my $key (keys %{$self->{VARS}}) { |
$result .= "|$key| -> " . $self->{VARS}->{$key} . "<br />"; |
# $result .= "|$key| -> " . $self->{VARS}->{$key} . "<br />"; |
} |
#} |
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$result .= <<FOOTER; |
$result .= <<FOOTER; |
</td> |
</td> |
Line 474 sub new {
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Line 588 sub new {
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$helper->registerState($self); |
$helper->registerState($self); |
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$state = $self; |
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return $self; |
return $self; |
} |
} |
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Line 517 sub postprocess {
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Line 633 sub postprocess {
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} |
} |
} |
} |
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# Override the form if any element wants to. |
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# two elements overriding the form will make a mess, but that should |
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# be considered helper author error ;-) |
sub overrideForm { |
sub overrideForm { |
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my $self = shift; |
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for my $element (@{$self->{ELEMENTS}}) { |
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if ($element->overrideForm()) { |
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return 1; |
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} |
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} |
return 0; |
return 0; |
} |
} |
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Line 616 sub render {
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Line 741 sub render {
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return ''; |
return ''; |
} |
} |
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sub overrideForm { |
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return 0; |
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} |
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sub process_multiple_choices { |
sub process_multiple_choices { |
my $self = shift; |
my $self = shift; |
my $formname = shift; |
my $formname = shift; |
my $var = shift; |
my $var = shift; |
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my $formvalue = $ENV{'form.' . $formname}; |
# Must extract values from data directly, as there |
if ($formvalue) { |
# may be more then one. |
# Must extract values from querystring directly, as there |
my @values; |
# may be more then one. |
for my $formparam (split (/&/, $ENV{QUERY_STRING})) { |
my @values; |
my ($name, $value) = split(/=/, $formparam); |
for my $formparam (split (/&/, $ENV{QUERY_STRING})) { |
if ($name ne $formname) { |
my ($name, $value) = split(/=/, $formparam); |
next; |
if ($name ne $formname) { |
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next; |
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} |
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$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg; |
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push @values, $value; |
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} |
} |
$helper->{VARS}->{$var} = join('|||', @values); |
$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg; |
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push @values, $value; |
} |
} |
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$helper->{VARS}->{$var} = join('|||', @values); |
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return; |
return; |
} |
} |
Line 766 B<SUB-TAGS>
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Line 892 B<SUB-TAGS>
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For example, |
For example, |
<choice computer='234-12-7312'>Bobby McDormik</choice>. |
<choice computer='234-12-7312'>Bobby McDormik</choice>. |
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<choice> can take a parameter "eval", which if set to |
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a true value, will cause the contents of the tag to be |
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evaluated as it would be in an <eval> tag; see <eval> tag |
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below. |
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<choice> may optionally contain a 'nextstate' attribute, which |
<choice> may optionally contain a 'nextstate' attribute, which |
will be the state transisitoned to if the choice is made, if |
will be the state transisitoned to if the choice is made, if |
the choice is not multichoice. |
the choice is not multichoice. |
Line 846 sub start_choice {
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Line 977 sub start_choice {
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my $human = &Apache::lonxml::get_all_text('/choice', |
my $human = &Apache::lonxml::get_all_text('/choice', |
$parser); |
$parser); |
my $nextstate = $token->[2]{'nextstate'}; |
my $nextstate = $token->[2]{'nextstate'}; |
push @{$paramHash->{CHOICES}}, [$human, $computer, $nextstate]; |
my $evalFlag = $token->[2]{'eval'}; |
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push @{$paramHash->{CHOICES}}, [$human, $computer, $nextstate, |
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$evalFlag]; |
return ''; |
return ''; |
} |
} |
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Line 864 sub render {
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Line 997 sub render {
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if ($self->{'multichoice'}) { |
if ($self->{'multichoice'}) { |
$result .= <<SCRIPT; |
$result .= <<SCRIPT; |
<script> |
<script> |
function checkall(value) { |
function checkall(value, checkName) { |
for (i=0; i<document.forms.wizform.elements.length; i++) { |
for (i=0; i<document.forms.helpform.elements.length; i++) { |
document.forms.wizform.elements[i].checked=value; |
ele = document.forms.helpform.elements[i]; |
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if (ele.name == checkName + '.forminput') { |
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document.forms.helpform.elements[i].checked=value; |
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} |
} |
} |
} |
} |
</script> |
</script> |
SCRIPT |
SCRIPT |
$buttons = <<BUTTONS; |
$buttons = <<BUTTONS; |
<br /> |
<br /> |
<input type="button" onclick="checkall(true)" value="Select All" /> |
<input type="button" onclick="checkall(true, '$var')" value="Select All" /> |
<input type="button" onclick="checkall(false)" value="Unselect All" /> |
<input type="button" onclick="checkall(false, '$var')" value="Unselect All" /> |
<br /> |
<br /> |
BUTTONS |
BUTTONS |
} |
} |
Line 900 BUTTONS
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Line 1036 BUTTONS
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$result .= " checked "; |
$result .= " checked "; |
$checked = 1; |
$checked = 1; |
} |
} |
$result .= "/></td><td> " . $choice->[0] . "</td></tr>\n"; |
my $choiceLabel = $choice->[0]; |
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if ($choice->[4]) { # if we need to evaluate this choice |
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$choiceLabel = "sub { my $helper = shift; my $state = shift;" . |
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$choiceLabel . "}"; |
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$choiceLabel = eval($choiceLabel); |
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$choiceLabel = &$choiceLabel($helper, $self); |
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} |
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$result .= "/></td><td> " . $choiceLabel . "</td></tr>\n"; |
} |
} |
$result .= "</table>\n\n\n"; |
$result .= "</table>\n\n\n"; |
$result .= $buttons; |
$result .= $buttons; |
Line 1165 the user can manipulate the folders.
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Line 1308 the user can manipulate the folders.
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<resource> takes the standard variable attribute to control what helper |
<resource> takes the standard variable attribute to control what helper |
variable stores the results. It also takes a "multichoice" attribute, |
variable stores the results. It also takes a "multichoice" attribute, |
which controls whether the user can select more then one resource. |
which controls whether the user can select more then one resource. The |
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"toponly" attribute controls whether the resource display shows just the |
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resources in that sequence, or recurses into all sub-sequences, defaulting |
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to false. |
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B<SUB-TAGS> |
B<SUB-TAGS> |
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Line 1192 B<SUB-TAGS>
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Line 1338 B<SUB-TAGS>
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"}" returns a string representing what you want to have as the value. By |
"}" returns a string representing what you want to have as the value. By |
default, the value will be the resource ID of the object ($res->{ID}). |
default, the value will be the resource ID of the object ($res->{ID}). |
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=item * <mapurl>: If the URL of a map is given here, only that map |
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will be displayed, instead of the whole course. |
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=back |
=back |
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=cut |
=cut |
Line 1203 use strict;
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Line 1352 use strict;
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BEGIN { |
BEGIN { |
&Apache::lonhelper::register('Apache::lonhelper::resource', |
&Apache::lonhelper::register('Apache::lonhelper::resource', |
('resource', 'filterfunc', |
('resource', 'filterfunc', |
'choicefunc', 'valuefunc')); |
'choicefunc', 'valuefunc', |
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'mapurl')); |
} |
} |
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sub new { |
sub new { |
Line 1221 sub start_resource {
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Line 1371 sub start_resource {
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$paramHash->{'variable'} = $token->[2]{'variable'}; |
$paramHash->{'variable'} = $token->[2]{'variable'}; |
$helper->declareVar($paramHash->{'variable'}); |
$helper->declareVar($paramHash->{'variable'}); |
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$paramHash->{'multichoice'} = $token->[2]{'multichoice'}; |
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$paramHash->{'toponly'} = $token->[2]{'toponly'}; |
return ''; |
return ''; |
} |
} |
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Line 1288 sub start_valuefunc {
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Line 1440 sub start_valuefunc {
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sub end_valuefunc { return ''; } |
sub end_valuefunc { return ''; } |
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sub start_mapurl { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
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if ($target ne 'helper') { |
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return ''; |
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} |
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my $contents = Apache::lonxml::get_all_text('/mapurl', |
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$parser); |
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$paramHash->{MAP_URL} = $contents; |
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} |
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sub end_mapurl { return ''; } |
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# A note, in case I don't get to this before I leave. |
# A note, in case I don't get to this before I leave. |
# If someone complains about the "Back" button returning them |
# If someone complains about the "Back" button returning them |
# to the previous folder state, instead of returning them to |
# to the previous folder state, instead of returning them to |
Line 1306 sub render {
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Line 1472 sub render {
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my $var = $self->{'variable'}; |
my $var = $self->{'variable'}; |
my $curVal = $helper->{VARS}->{$var}; |
my $curVal = $helper->{VARS}->{$var}; |
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my $buttons = ''; |
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if ($self->{'multichoice'}) { |
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$result = <<SCRIPT; |
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<script> |
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function checkall(value, checkName) { |
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for (i=0; i<document.forms.helpform.elements.length; i++) { |
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ele = document.forms.helpform.elements[i]; |
|
if (ele.name == checkName + '.forminput') { |
|
document.forms.helpform.elements[i].checked=value; |
|
} |
|
} |
|
} |
|
</script> |
|
SCRIPT |
|
$buttons = <<BUTTONS; |
|
<br /> |
|
<input type="button" onclick="checkall(true, '$var')" value="Select All Resources" /> |
|
<input type="button" onclick="checkall(false, '$var')" value="Unselect All Resources" /> |
|
<br /> |
|
BUTTONS |
|
} |
|
|
if (defined $self->{ERROR_MSG}) { |
if (defined $self->{ERROR_MSG}) { |
$result .= '<font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br /><br />'; |
$result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br /><br />'; |
} |
} |
|
|
|
$result .= $buttons; |
|
|
my $filterFunc = $self->{FILTER_FUNC}; |
my $filterFunc = $self->{FILTER_FUNC}; |
my $choiceFunc = $self->{CHOICE_FUNC}; |
my $choiceFunc = $self->{CHOICE_FUNC}; |
my $valueFunc = $self->{VALUE_FUNC}; |
my $valueFunc = $self->{VALUE_FUNC}; |
|
my $mapUrl = $self->{MAP_URL}; |
|
my $multichoice = $self->{'multichoice'}; |
|
|
# Create the composite function that renders the column on the nav map |
# Create the composite function that renders the column on the nav map |
# have to admit any language that lets me do this can't be all bad |
# have to admit any language that lets me do this can't be all bad |
Line 1320 sub render {
|
Line 1513 sub render {
|
my $checked = 0; |
my $checked = 0; |
my $renderColFunc = sub { |
my $renderColFunc = sub { |
my ($resource, $part, $params) = @_; |
my ($resource, $part, $params) = @_; |
|
|
|
my $inputType; |
|
if ($multichoice) { $inputType = 'checkbox'; } |
|
else {$inputType = 'radio'; } |
|
|
if (!&$choiceFunc($resource)) { |
if (!&$choiceFunc($resource)) { |
return '<td> </td>'; |
return '<td> </td>'; |
} else { |
} else { |
my $col = "<td><input type='radio' name='${var}.forminput' "; |
my $col = "<td><input type='$inputType' name='${var}.forminput' "; |
if (!$checked) { |
if (!$checked && !$multichoice) { |
$col .= "checked "; |
$col .= "checked "; |
$checked = 1; |
$checked = 1; |
} |
} |
Line 1336 sub render {
|
Line 1533 sub render {
|
} |
} |
}; |
}; |
|
|
$ENV{'form.condition'} = 1; |
$ENV{'form.condition'} = !$self->{'toponly'}; |
$result .= |
$result .= |
&Apache::lonnavmaps::render( { 'cols' => [$renderColFunc, |
&Apache::lonnavmaps::render( { 'cols' => [$renderColFunc, |
Apache::lonnavmaps::resource()], |
Apache::lonnavmaps::resource()], |
'showParts' => 0, |
'showParts' => 0, |
'url' => $helper->{URL}, |
|
'filterFunc' => $filterFunc, |
'filterFunc' => $filterFunc, |
'resource_no_folder_link' => 1 } |
'resource_no_folder_link' => 1, |
|
'iterator_map' => $mapUrl } |
); |
); |
|
|
|
$result .= $buttons; |
|
|
return $result; |
return $result; |
} |
} |
|
|
sub postprocess { |
sub postprocess { |
my $self = shift; |
my $self = shift; |
|
|
|
if ($self->{'multichoice'}) { |
|
$self->process_multiple_choices($self->{'variable'}.'.forminput', |
|
$self->{'variable'}); |
|
} |
|
|
|
if ($self->{'multichoice'} && !$helper->{VARS}->{$self->{'variable'}}) { |
|
$self->{ERROR_MSG} = 'You must choose at least one resource to continue.'; |
|
return 0; |
|
} |
|
|
if (defined($self->{NEXTSTATE})) { |
if (defined($self->{NEXTSTATE})) { |
$helper->changeState($self->{NEXTSTATE}); |
$helper->changeState($self->{NEXTSTATE}); |
} |
} |
Line 1420 sub render {
|
Line 1630 sub render {
|
my $self = shift; |
my $self = shift; |
my $result = ''; |
my $result = ''; |
my $buttons = ''; |
my $buttons = ''; |
|
my $var = $self->{'variable'}; |
|
|
if ($self->{'multichoice'}) { |
if ($self->{'multichoice'}) { |
$result = <<SCRIPT; |
$result = <<SCRIPT; |
<script> |
<script> |
function checkall(value) { |
function checkall(value, checkName) { |
for (i=0; i<document.forms.wizform.elements.length; i++) { |
for (i=0; i<document.forms.helpform.elements.length; i++) { |
document.forms.wizform.elements[i].checked=value; |
ele = document.forms.helpform.elements[i]; |
|
if (ele.name == checkName + '.forminput') { |
|
document.forms.helpform.elements[i].checked=value; |
|
} |
} |
} |
} |
} |
</script> |
</script> |
SCRIPT |
SCRIPT |
$buttons = <<BUTTONS; |
$buttons = <<BUTTONS; |
<br /> |
<br /> |
<input type="button" onclick="checkall(true)" value="Select All" /> |
<input type="button" onclick="checkall(true, '$var')" value="Select All Students" /> |
<input type="button" onclick="checkall(false)" value="Unselect All" /> |
<input type="button" onclick="checkall(false, '$var')" value="Unselect All Students" /> |
<br /> |
<br /> |
BUTTONS |
BUTTONS |
} |
} |
Line 1475 BUTTONS
|
Line 1689 BUTTONS
|
$checked = 1; |
$checked = 1; |
} |
} |
$result .= |
$result .= |
" value='" . HTML::Entities::encode($_) |
" value='" . HTML::Entities::encode($_ . ':' . $choices->{$_}->[$section]) |
. "' /></td><td>" |
. "' /></td><td>" |
. HTML::Entities::encode($choices->{$_}->[$fullname]) |
. HTML::Entities::encode($choices->{$_}->[$fullname]) |
. "</td><td align='center'>" |
. "</td><td align='center'>" |
Line 1621 sub render {
|
Line 1835 sub render {
|
|
|
my $filterFunc = $self->{FILTER_FUNC}; |
my $filterFunc = $self->{FILTER_FUNC}; |
my $buttons = ''; |
my $buttons = ''; |
|
my $type = 'radio'; |
|
if ($self->{'multichoice'}) { |
|
$type = 'checkbox'; |
|
} |
|
|
if ($self->{'multichoice'}) { |
if ($self->{'multichoice'}) { |
$result = <<SCRIPT; |
$result = <<SCRIPT; |
<script> |
<script> |
function checkall(value) { |
function checkall(value, checkName) { |
for (i=0; i<document.forms.wizform.elements.length; i++) { |
for (i=0; i<document.forms.helpform.elements.length; i++) { |
ele = document.forms.wizform.elements[i]; |
ele = document.forms.helpform.elements[i]; |
if (ele.type == "checkbox") { |
if (ele.name == checkName + '.forminput') { |
document.forms.wizform.elements[i].checked=value; |
document.forms.helpform.elements[i].checked=value; |
|
} |
|
} |
|
} |
|
|
|
function checkallclass(value, className) { |
|
for (i=0; i<document.forms.helpform.elements.length; i++) { |
|
ele = document.forms.helpform.elements[i]; |
|
if (ele.type == "$type" && ele.onclick) { |
|
document.forms.helpform.elements[i].checked=value; |
} |
} |
} |
} |
} |
} |
</script> |
</script> |
SCRIPT |
SCRIPT |
my $buttons = <<BUTTONS; |
$buttons = <<BUTTONS; |
<br /> |
<br /> |
<input type="button" onclick="checkall(true)" value="Select All" /> |
<input type="button" onclick="checkall(true, '$var')" value="Select All Files" /> |
<input type="button" onclick="checkall(false)" value="Unselect All" /> |
<input type="button" onclick="checkall(false, '$var')" value="Unselect All Files" /> |
|
BUTTONS |
|
|
|
if ($helper->{VARS}->{'construction'}) { |
|
$buttons .= <<BUTTONS; |
|
<input type="button" onclick="checkallclass(true, 'Published')" value="Select All Published" /> |
|
<input type="button" onclick="checkallclass(false, 'Published')" value="Unselect All Published" /> |
<br /> |
<br /> |
BUTTONS |
BUTTONS |
|
} |
} |
} |
|
|
# Get the list of files in this directory. |
# Get the list of files in this directory. |
Line 1662 BUTTONS
|
Line 1896 BUTTONS
|
$result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br /><br />'; |
$result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br /><br />'; |
} |
} |
|
|
$result .= '<table border="0" cellpadding="1" cellspacing="1">'; |
$result .= '<table border="0" cellpadding="2" cellspacing="0">'; |
|
|
# Keeps track if there are no choices, prints appropriate error |
# Keeps track if there are no choices, prints appropriate error |
# if there are none. |
# if there are none. |
my $choices = 0; |
my $choices = 0; |
my $type = 'radio'; |
|
if ($self->{'multichoice'}) { |
|
$type = 'checkbox'; |
|
} |
|
# Print each legitimate file choice. |
# Print each legitimate file choice. |
for my $file (@fileList) { |
for my $file (@fileList) { |
$file = (split(/&/, $file))[0]; |
$file = (split(/&/, $file))[0]; |
Line 1679 BUTTONS
|
Line 1909 BUTTONS
|
} |
} |
my $fileName = $subdir .'/'. $file; |
my $fileName = $subdir .'/'. $file; |
if (&$filterFunc($file)) { |
if (&$filterFunc($file)) { |
$result .= '<tr><td align="right">' . |
(my $status, my $color) = @{fileState($subdir, $file)}; |
"<input type='$type' name='" . $var |
|
|
# Netscape 4 is stupid and there's nowhere to put the |
|
# information on the input tag that the file is Published, |
|
# Unpublished, etc. In *real* browsers we can just say |
|
# "class='Published'" and check the className attribute of |
|
# the input tag, but Netscape 4 is too stupid to understand |
|
# that attribute, and un-comprehended attributes are not |
|
# reflected into the object model. So instead, what I do |
|
# is either have or don't have an "onclick" handler that |
|
# does nothing, give Published files the onclick handler, and |
|
# have the checker scripts check for that. Stupid and clumsy, |
|
# and only gives us binary "yes/no" information (at least I |
|
# couldn't figure out how to reach into the event handler's |
|
# actual code to retreive a value), but it works well enough |
|
# here. |
|
|
|
my $onclick = ''; |
|
if ($status eq 'Published' && $helper->{VARS}->{'construction'}) { |
|
$onclick = 'onclick="a=1" '; |
|
} |
|
$result .= '<tr><td align="right"' . " bgcolor='$color'>" . |
|
"<input $onclick type='$type' name='" . $var |
. ".forminput' value='" . HTML::Entities::encode($fileName) . |
. ".forminput' value='" . HTML::Entities::encode($fileName) . |
"'"; |
"'"; |
if (!$self->{'multichoice'} && $choices == 0) { |
if (!$self->{'multichoice'} && $choices == 0) { |
$result .= ' checked'; |
$result .= ' checked'; |
} |
} |
$result .= "/></td><td>" . $file . "</td></tr>\n"; |
$result .= "/></td><td bgcolor='$color'>" . $file . |
|
"</td><td bgcolor='$color'>$status</td></tr>\n"; |
$choices++; |
$choices++; |
} |
} |
} |
} |
Line 1702 BUTTONS
|
Line 1954 BUTTONS
|
return $result; |
return $result; |
} |
} |
|
|
|
# Determine the state of the file: Published, unpublished, modified. |
|
# Return the color it should be in and a label as a two-element array |
|
# reference. |
|
# Logic lifted from lonpubdir.pm, even though I don't know that it's still |
|
# the most right thing to do. |
|
|
|
sub fileState { |
|
my $constructionSpaceDir = shift; |
|
my $file = shift; |
|
|
|
my $docroot = $Apache::lonnet::perlvar{'lonDocRoot'}; |
|
my $subdirpart = $constructionSpaceDir; |
|
$subdirpart =~ s/^\/home\/$ENV{'user.name'}\/public_html//; |
|
my $resdir = $docroot . '/res/' . $ENV{'user.domain'} . '/' . $ENV{'user.name'} . |
|
$subdirpart; |
|
|
|
my @constructionSpaceFileStat = stat($constructionSpaceDir . '/' . $file); |
|
my @resourceSpaceFileStat = stat($resdir . '/' . $file); |
|
if (!@resourceSpaceFileStat) { |
|
return ['Unpublished', '#FFCCCC']; |
|
} |
|
|
|
my $constructionSpaceFileModified = $constructionSpaceFileStat[9]; |
|
my $resourceSpaceFileModified = $resourceSpaceFileStat[9]; |
|
|
|
if ($constructionSpaceFileModified > $resourceSpaceFileModified) { |
|
return ['Modified', '#FFFFCC']; |
|
} |
|
return ['Published', '#CCFFCC']; |
|
} |
|
|
sub postprocess { |
sub postprocess { |
my $self = shift; |
my $self = shift; |
my $result = $ENV{'form.' . $self->{'variable'} . '.forminput'}; |
my $result = $ENV{'form.' . $self->{'variable'} . '.forminput'}; |
Line 1929 sub end_eval {
|
Line 2212 sub end_eval {
|
Apache::lonhelper::message->new(); |
Apache::lonhelper::message->new(); |
} |
} |
|
|
|
1; |
|
|
|
package Apache::lonhelper::parmwizfinal; |
|
|
|
# This is the final state for the parmwizard. It is not generally useful, |
|
# so it is not perldoc'ed. It does its own processing. |
|
# It is represented with <parmwizfinal />, and |
|
# should later be moved to lonparmset.pm . |
|
|
|
no strict; |
|
@ISA = ('Apache::lonhelper::element'); |
|
use strict; |
|
|
|
BEGIN { |
|
&Apache::lonhelper::register('Apache::lonhelper::parmwizfinal', |
|
('parmwizfinal')); |
|
} |
|
|
|
use Time::localtime; |
|
|
|
sub new { |
|
my $ref = Apache::lonhelper::choices->new(); |
|
bless ($ref); |
|
} |
|
|
|
sub start_parmwizfinal { return ''; } |
|
|
|
sub end_parmwizfinal { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
|
|
|
if ($target ne 'helper') { |
|
return ''; |
|
} |
|
Apache::lonhelper::parmwizfinal->new(); |
|
} |
|
|
|
# Renders a form that, when submitted, will form the input to lonparmset.pm |
|
sub render { |
|
my $self = shift; |
|
my $vars = $helper->{VARS}; |
|
|
|
# FIXME: Unify my designators with the standard ones |
|
my %dateTypeHash = ('open_date' => "Opening Date", |
|
'due_date' => "Due Date", |
|
'answer_date' => "Answer Date"); |
|
my %parmTypeHash = ('open_date' => "0_opendate", |
|
'due_date' => "0_duedate", |
|
'answer_date' => "0_answerdate"); |
|
|
|
my $result = "<form name='helpform' method='get' action='/adm/parmset'>\n"; |
|
$result .= '<p>Confirm that this information is correct, then click "Finish Wizard" to complete setting the parameter.<ul>'; |
|
my $affectedResourceId = ""; |
|
my $parm_name = $parmTypeHash{$vars->{ACTION_TYPE}}; |
|
my $level = ""; |
|
|
|
# Print the type of manipulation: |
|
$result .= '<li>Setting the <b>' . $dateTypeHash{$vars->{ACTION_TYPE}} |
|
. "</b></li>\n"; |
|
if ($vars->{ACTION_TYPE} eq 'due_date' || |
|
$vars->{ACTION_TYPE} eq 'answer_date') { |
|
# for due dates, we default to "date end" type entries |
|
$result .= "<input type='hidden' name='recent_date_end' " . |
|
"value='" . $vars->{PARM_DATE} . "' />\n"; |
|
$result .= "<input type='hidden' name='pres_value' " . |
|
"value='" . $vars->{PARM_DATE} . "' />\n"; |
|
$result .= "<input type='hidden' name='pres_type' " . |
|
"value='date_end' />\n"; |
|
} elsif ($vars->{ACTION_TYPE} eq 'open_date') { |
|
$result .= "<input type='hidden' name='recent_date_start' ". |
|
"value='" . $vars->{PARM_DATE} . "' />\n"; |
|
$result .= "<input type='hidden' name='pres_value' " . |
|
"value='" . $vars->{PARM_DATE} . "' />\n"; |
|
$result .= "<input type='hidden' name='pres_type' " . |
|
"value='date_start' />\n"; |
|
} |
|
|
|
# Print the granularity, depending on the action |
|
if ($vars->{GRANULARITY} eq 'whole_course') { |
|
$result .= '<li>for <b>all resources in the course</b></li>'; |
|
$level = 9; # general course, see lonparmset.pm perldoc |
|
$affectedResourceId = "0.0"; |
|
} elsif ($vars->{GRANULARITY} eq 'map') { |
|
my $navmap = Apache::lonnavmaps::navmap->new( |
|
$ENV{"request.course.fn"}.".db", |
|
$ENV{"request.course.fn"}."_parms.db", 0, 0); |
|
my $res = $navmap->getById($vars->{RESOURCE_ID}); |
|
my $title = $res->compTitle(); |
|
$navmap->untieHashes(); |
|
$result .= "<li>for the map named <b>$title</b></li>"; |
|
$level = 8; |
|
$affectedResourceId = $vars->{RESOURCE_ID}; |
|
} else { |
|
my $navmap = Apache::lonnavmaps::navmap->new( |
|
$ENV{"request.course.fn"}.".db", |
|
$ENV{"request.course.fn"}."_parms.db", 0, 0); |
|
my $res = $navmap->getById($vars->{RESOURCE_ID}); |
|
my $title = $res->compTitle(); |
|
$navmap->untieHashes(); |
|
$result .= "<li>for the resource named <b>$title</b></li>"; |
|
$level = 7; |
|
$affectedResourceId = $vars->{RESOURCE_ID}; |
|
} |
|
|
|
# Print targets |
|
if ($vars->{TARGETS} eq 'course') { |
|
$result .= '<li>for <b>all students in course</b></li>'; |
|
} elsif ($vars->{TARGETS} eq 'section') { |
|
my $section = $vars->{SECTION_NAME}; |
|
$result .= "<li>for section <b>$section</b></li>"; |
|
$level -= 3; |
|
$result .= "<input type='hidden' name='csec' value='" . |
|
HTML::Entities::encode($section) . "' />\n"; |
|
} else { |
|
# FIXME: This is probably wasteful! Store the name! |
|
my $classlist = Apache::loncoursedata::get_classlist(); |
|
my $name = $classlist->{$vars->{USER_NAME}}->[6]; |
|
$result .= "<li>for <b>$name</b></li>"; |
|
$level -= 6; |
|
my ($uname, $udom) = split /:/, $vars->{USER_NAME}; |
|
$result .= "<input type='hidden' name='uname' value='". |
|
HTML::Entities::encode($uname) . "' />\n"; |
|
$result .= "<input type='hidden' name='udom' value='". |
|
HTML::Entities::encode($udom) . "' />\n"; |
|
} |
|
|
|
# Print value |
|
$result .= "<li>to <b>" . ctime($vars->{PARM_DATE}) . "</b> (" . |
|
Apache::lonnavmaps::timeToHumanString($vars->{PARM_DATE}) |
|
. ")</li>\n"; |
|
|
|
# print pres_marker |
|
$result .= "\n<input type='hidden' name='pres_marker'" . |
|
" value='$affectedResourceId&$parm_name&$level' />\n"; |
|
|
|
$result .= "<br /><br /><center><input type='submit' value='Finish Helper' /></center></form>\n"; |
|
|
|
return $result; |
|
} |
|
|
|
sub overrideForm { |
|
return 1; |
|
} |
|
|
1; |
1; |
|
|