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#!/usr/bin/perl
use v5.26;
use warnings;
use Test2::V0;
use Tickit::Test 0.12;
use Tickit::Widget::Scroller;
use Tickit::Widget::Scroller::Item::Text;
# TODO: mk_window once Tickit::Test can take a size there too
my ( $term, $rootwin ) = mk_term_and_window cols => 20, lines => 8;
my $win = $rootwin->make_sub( 0, 0, 6, 20 );
$rootwin->focus( 7, 0 );
my $scroller = Tickit::Widget::Scroller->new(
gravity => "bottom",
);
$scroller->set_window( $win );
$scroller->unshift(
Tickit::Widget::Scroller::Item::Text->new( "Existing line $_" ),
) for 1 .. 20;
flush_tickit;
is_termlog( [ ( map { SETBG(undef),
SCROLLRECT(0,0,6,20, -1,0) } 1 .. 5, ),
( map { GOTO(6-$_,0),
SETPEN,
PRINT("Existing line $_"),
SETBG(undef),
ERASECH(5) } reverse 1 .. 6 ),
GOTO(7,0) ],
'Termlog initially' );
is_display( [ [TEXT("Existing line 6")],
[TEXT("Existing line 5")],
[TEXT("Existing line 4")],
[TEXT("Existing line 3")],
[TEXT("Existing line 2")],
[TEXT("Existing line 1")] ],
'Display initially' );
is_cursorpos( 7, 0, 'Cursor position intially' );
my ( $item ) = $scroller->pop;
isa_ok( $item, "Tickit::Widget::Scroller::Item::Text" );
flush_tickit;
is_termlog( [ SETBG(undef),
SCROLLRECT(0,0,6,20, -1,0),
GOTO(0,0),
SETPEN,
PRINT("Existing line 7"),
SETBG(undef),
ERASECH(5),
GOTO(7,0) ],
'Termlog after pop' );
is_display( [ [TEXT("Existing line 7")],
[TEXT("Existing line 6")],
[TEXT("Existing line 5")],
[TEXT("Existing line 4")],
[TEXT("Existing line 3")],
[TEXT("Existing line 2")] ],
'Display after pop' );
is_cursorpos( 7, 0, 'Cursor position after pop' );
$scroller->pop( 3 );
flush_tickit;
is_termlog( [ SETBG(undef),
SCROLLRECT(0,0,6,20, -3,0),
GOTO(0,0),
SETPEN,
PRINT("Existing line 10"),
SETBG(undef),
ERASECH(4),
GOTO(1,0),
SETPEN,
PRINT("Existing line 9"),
SETBG(undef),
ERASECH(5),
GOTO(2,0),
SETPEN,
PRINT("Existing line 8"),
SETBG(undef),
ERASECH(5),
GOTO(7,0) ],
'Termlog after pop 3' );
is_display( [ [TEXT("Existing line 10")],
[TEXT("Existing line 9")],
[TEXT("Existing line 8")],
[TEXT("Existing line 7")],
[TEXT("Existing line 6")],
[TEXT("Existing line 5")] ],
'Display after pop 3' );
is_cursorpos( 7, 0, 'Cursor position after pop 3' );
$scroller->scroll_to_top;
flush_tickit;
drain_termlog;
is_display( [ [TEXT("Existing line 20")],
[TEXT("Existing line 19")],
[TEXT("Existing line 18")],
[TEXT("Existing line 17")],
[TEXT("Existing line 16")],
[TEXT("Existing line 15")] ],
'Display after scroll_to_top' );
$scroller->pop;
flush_tickit;
is_termlog( [],
'Termlog empty after pop at top' );
is_display( [ [TEXT("Existing line 20")],
[TEXT("Existing line 19")],
[TEXT("Existing line 18")],
[TEXT("Existing line 17")],
[TEXT("Existing line 16")],
[TEXT("Existing line 15")] ],
'Display unchanged after pop at top' );
$scroller->scroll_to_bottom;
flush_tickit;
drain_termlog;
is_display( [ [TEXT("Existing line 11")],
[TEXT("Existing line 10")],
[TEXT("Existing line 9")],
[TEXT("Existing line 8")],
[TEXT("Existing line 7")],
[TEXT("Existing line 6")] ],
'Display after scroll_to_bottom' );
$scroller->pop( 6 );
flush_tickit;
is_termlog( [ ( map { GOTO(17-$_,0),
SETPEN,
PRINT("Existing line $_"),
SETBG(undef),
ERASECH(4) } reverse 12 .. 17 ),
GOTO(7,0) ],
'Termlog after pop 6 at bottom' );
is_display( [ [TEXT("Existing line 17")],
[TEXT("Existing line 16")],
[TEXT("Existing line 15")],
[TEXT("Existing line 14")],
[TEXT("Existing line 13")],
[TEXT("Existing line 12")] ],
'Display after pop 6 at bottom' );
done_testing;
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