File Coverage

blib/lib/WWW/Scripter/WindowGroup.pm

Criterion	Covered	Total	%
statement	34	36	94.4
branch	7	8	87.5
condition			n/a
subroutine	9	9	100.0
pod	7	7	100.0
total	57	60	95.0

package WWW::Scripter::WindowGroup;

$VERSION = '0.031'; # update POD, too

use Carp;
use WWW'Scripter;

sub new {
 my(undef,%args) = @_;
 if($args{empty}) {
  bless [],shift
 }
 else {
  my $self = bless [my $w = new WWW'Scripter], shift;
  $w->window_group($self);
  $self;
 }
}

sub active_window {
 return $_[0][0]
}

sub windows {
 @{$_[0]}
}

sub new_window {
 unshift
  @{$_[0]},
  my $w = $_[0][0] ? clear_history{clone{$_[0][0]}}1 : new WWW'Scripter;
 $w->window_group($_[0]);
 $w
}

sub detach {
 my $self = shift;
 my $inddx = 0;
 for(@$self) {
  $_ == $_[0]
   and splice(@$self, $inddx, 1), $_->window_group(undef),return;
  ++$inddx
 }
 croak "detach cannot find $_[0] in $self";
}

sub bring_to_front {
 my $self = shift;
 my $inddx = 0;
 for(@$self) {
  $_ == $_[0] and splice(@$self, $inddx, 1), unshift(@$self,$_), return;
  ++$inddx
 }
 croak "bring_to_front cannot find $_[0] in $self";
}

sub attach {
  unshift @{$_[0]}, $_[1];
  $_[1]->window_group($_[0]);
 _:
}

=head1 NAME

WWW::Scripter::WindowGroup - Multiple-window browsing environment

=head1 VERSION

Version 0.031

=head1 SYNOPSIS

 use WWW'Scripter'WindowGroup;

 $browser = new WWW'Scripter'WindowGroup;
 # This has one window already

 # OR:

 $browser = new WWW'Scripter'WindowGroup empty => 1;
 $browser->attach($w = new WWW'Scripter);

 $w = $browser->active_window;
 $w->get('http://ghare.dr/');
 $w->close;

 $w = $browser->new_window;
 @w = $browser->windows;

=head1 DESCRIPTION

This module provides a virtual multiple-window browsing environment for
L. It does not actually create any windows on the screen,
but
it can be used to script websites that make use of multiple windows. The
individual windows themselves are WWW::Scripter objects.

Before you start using this, consider whether the site you are scripting
actually I multiple windows. If a single-window environment will do,
use L directly.

Note: Window groups hold strong references to their windows, but the
windows themselves hold weak references to the window group. So if you let
a window group go out of scope while retaining a reference to a window,
that window will revert to single-window mode.

=head1 METHODS

=over

=item new

The constructor. Call this method on the class, not on an object thereof.
It takes no arguments.

=item active_window

Returns the window that is currently 'active'. This can be changed by
scripts calling the C method on a window, or opening a new one, so
keep your own
reference to it if you need to refer to a specific window repeatedly.

=item windows

Returns a list of all windows in list context, or the number of windows in
scalar context.

=item new_window

Adds a new WWW::Scripter to the window group and returns it.

=item attach ($window)

This methods adds a window to the group, making it the frontmost window and
setting its C
attribute appropriately.

If you attach a window that is already attached to another group, strange
things may happen. Detach it first.

=item detach ($window)

This removes the window from the group and sets its C
attribute to C. This is used internally by
WWW::Scripter's C method.

=item bring_to_front ($window)

This makes C<$window> the active window.

=back

=head1 AUTHOR & COPYRIGHT

See L

=head1 SEE ALSO

=over 4

=item -

L

=back