webgui/lib/WebGUI/HTMLForm.pm
Colin Kuskie b1990836d0 Refactor out the getEditForm code from WebGUI::Workflow::Activity and
put it into HTMLForm.  Now HTMLForm can generate dynamic, definition
based forms for WebGUI.
2008-02-24 04:04:36 +00:00

355 lines
8.8 KiB
Perl

package WebGUI::HTMLForm;
=head1 LEGAL
-------------------------------------------------------------------
WebGUI is Copyright 2001-2008 Plain Black Corporation.
-------------------------------------------------------------------
Please read the legal notices (docs/legal.txt) and the license
(docs/license.txt) that came with this distribution before using
this software.
-------------------------------------------------------------------
http://www.plainblack.com info@plainblack.com
-------------------------------------------------------------------
=cut
use CGI::Util qw(rearrange);
use strict qw(vars refs);
use WebGUI::Form;
use WebGUI::International;
use WebGUI::Pluggable;
use WebGUI::Utility;
=head1 NAME
Package WebGUI::HTMLForm
=head1 DESCRIPTION
Package that makes HTML forms typed data and significantly reduces the code needed for properties pages in WebGUI.
=head1 SYNOPSIS
use WebGUI::HTMLForm;
$f = WebGUI::HTMLForm->new($self->session);
$f->someFormControlType(
name=>"someName",
value=>"someValue"
);
Example:
$f->text(
name=>"title",
value=>"My Big Article"
);
See the list of form control types for details on what's available.
$f->trClass("class"); # Sets a Table Row class
$f->print;
$f->printRowsOnly;
=head1 METHODS
These methods are available from this class:
=cut
#-------------------------------------------------------------------
sub _uiLevelChecksOut {
my $self = shift;
if ($_[0] <= $self->session->user->profileField("uiLevel")) {
return 1;
}
else {
return 0;
}
}
#-------------------------------------------------------------------
=head2 AUTOLOAD ( )
Dynamically creates functions on the fly for all the different form control types.
=cut
sub AUTOLOAD {
our $AUTOLOAD;
my $self = shift;
my $name = ucfirst((split /::/, $AUTOLOAD)[-1]);
my %params = @_;
$params{uiLevelOverride} ||= $self->{_uiLevelOverride};
$params{rowClass} ||= $self->{_class};
my $control = eval { WebGUI::Pluggable::instanciate("WebGUI::Form::".$name, "new", [ $self->session, %params ]) };
if ($@) {
$self->session->errorHandler->error($@);
return undef;
}
$self->{_data} .= $control->toHtmlWithWrapper;
}
#-------------------------------------------------------------------
=head2 DESTROY ( )
Disposes of the form object.
=cut
sub DESTROY {
my $self = shift;
$self = undef;
}
#-------------------------------------------------------------------
=head2 dynamicForm ( $formDefinition, $who )
Build a form dynamically from an array of hash refs. The format is
based on the definition sub from Asset, Workflow::Activity and
elements of the ShipDriver and PaymentDriver.
=head3 $formDefinition
An arrayref of hashrefs. The arrays are processed in order, but the only
way to guarantee the order of the hashes to tie them with Tie::IxHash.
These fields are allowed in each sub hash
=head4 label
A readable, probably internationalized label.
=head4 hoverHelp
A tooltip that will activate when the label is hovered over.
=head4 fieldType
The kind of HTML form field to build. This is a lower case version of
any WebGUI::Form plugin.
=head4 defaultValue
The default value the form field should have if the caller has no value
for this field.
=head3 $who
In order to populate the form with current information from an object,
you need to it the object. dynamicForm expects each object to have
a C<get> method to provide that information.
=cut
sub dynamicForm {
my ($self, $formDefinition, $parent) = @_;
foreach my $definition (reverse @{$formDefinition}) {
my $properties = $definition->{properties};
foreach my $fieldname (keys %{$properties}) {
my %params;
foreach my $key (keys %{$properties->{$fieldname}}) {
$params{$key} = $properties->{$fieldname}{$key};
if ($fieldname eq "title" && lc($params{$key}) eq "untitled") {
$params{$key} = $formDefinition->[0]{name};
}
}
$params{value} = $parent->get($fieldname);
$params{name} = $fieldname;
$self->dynamicField(%params);
}
}
}
#-------------------------------------------------------------------
=head2 fieldSetEnd ( )
Closes a field set that was opened by fieldSetStart();
=cut
sub fieldSetEnd {
my $self = shift;
my $legend = shift;
$self->{_data} .= "</tbody></table>\n"
."</fieldset>\n"
."<table ".$self->{_tableExtras}.'" style="width: 100%;"><tbody>'
."\n";
}
#-------------------------------------------------------------------
=head2 fieldSetStart ( legend )
Adds a field set grouping to the form. Note, must be closed with fieldSetEnd().
=head3 legend
A text label to appear with the field set.
=cut
sub fieldSetStart {
my $self = shift;
my $legend = shift;
$self->{_data} .= "</tbody></table>\n"
."<fieldset>\n<legend>".$legend."</legend>\n"
."<table ".$self->{_tableExtras}.'" style="width: 100%;"><tbody>'
."\n";
}
#-------------------------------------------------------------------
=head2 new ( session [ properties ] )
Constructor.
=head3 session
A reference to the session.
=head3 properties
A hash of parameters to modify the defaults of the form.
=head4 action
The Action URL for the form information to be submitted to. This defaults to the current page.
=head4 method
The form's submission method. This defaults to "POST" and probably shouldn't be changed.
=head4 extras
If you want to add anything special to your form like javascript actions, or stylesheet information, you'd add it in here as follows:
'"name"="myForm" onchange="myForm.submit()"'
=head4 enctype
The encapsulation type for this form. This defaults to "multipart/form-data" and should probably never be changed.
=head4 tableExtras
If you want to add anything special to the form's table like a name or stylesheet information, you'd add it in here as follows:
'"name"="myForm" class="formTable"'
=cut
sub new {
my ($header, $footer);
my $class = shift;
my $session = shift;
my %param = @_;
$header = "\n\n".WebGUI::Form::formHeader($session,{
action=>($param{action} || $param{'-action'} || $session->url->page),
extras=>($param{extras} || $param{'-extras'}),
method=>($param{method} || $param{'-method'}),
enctype=>($param{enctype} || $param{'-enctype'})
});
$header .= "\n<table ".$param{tableExtras}.' style="width: 100%;"><tbody>';
$footer = "</tbody></table>\n" ;
$footer .= WebGUI::Form::formFooter($session);
bless {_session=>$session, _tableExtras=>$param{tableExtras}, _uiLevelOverride=>$param{uiLevelOverride}, _header => $header, _footer => $footer, _data => ''}, $class;
}
#-------------------------------------------------------------------
=head2 print ( )
Returns the HTML for this form object.
=cut
sub print {
my $self = shift;
my $style = $self->session->style;
my $url = $self->session->url;
$style->setLink($url->extras('/yui/build/container/assets/container.css'),{ type=>'text/css', rel=>"stylesheet" });
$style->setLink($url->extras('/hoverhelp.css'),{ type=>'text/css', rel=>"stylesheet" });
$style->setScript($url->extras('/yui/build/yahoo/yahoo-min.js'),{ type=>'text/javascript' });
$style->setScript($url->extras('/yui/build/dom/dom-min.js'),{ type=>'text/javascript' });
$style->setScript($url->extras('/yui/build/event/event-min.js'),{ type=>'text/javascript' });
$style->setScript($url->extras('/yui/build/container/container-min.js'),{ type=>'text/javascript' });
$style->setScript($url->extras('/hoverhelp.js'),{ type=>'text/javascript' });
return $self->{_header}.$self->{_data}.$self->{_footer};
}
#-------------------------------------------------------------------
=head2 printRowsOnly ( )
Returns the HTML for this form object except for the form header and footer.
=cut
sub printRowsOnly {
return $_[0]->{_data};
}
#-------------------------------------------------------------------
=head2 raw ( value, uiLevel )
Adds raw data to the form. This is primarily useful with the printRowsOnly method and if you generate your own form elements.
=head3 uiLevel
The UI level for this field. See the WebGUI developer's site for details. Defaults to "0".
=cut
sub raw {
my ($self, @p) = @_;
my ($value, $uiLevel) = rearrange([qw(value uiLevel)], @p);
if ($self->_uiLevelChecksOut($uiLevel)) {
$self->{_data} .= $value;
}
}
#-------------------------------------------------------------------
=head2 session ( )
Returns a reference to the current session.
=cut
sub session {
my $self = shift;
return $self->{_session};
}
#-------------------------------------------------------------------
=head2 trClass ( )
Sets a CSS class for the Table Row. By default the class is undefined.
=cut
sub trClass {
my $self = shift;
my $class = shift;
$self->{_class} = $class;
}
1;