ladybird/Userland/Applications/Help/History.cpp
Linus Groh 6e19ab2bbc AK+Everywhere: Rename String to DeprecatedString
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
2022-12-06 08:54:33 +01:00

43 lines
796 B
C++

/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "History.h"
void History::push(StringView history_item)
{
if (!m_items.is_empty() && m_items[m_current_history_item] == history_item)
return;
m_items.shrink(m_current_history_item + 1);
m_items.append(history_item);
m_current_history_item++;
}
DeprecatedString History::current()
{
if (m_current_history_item == -1)
return {};
return m_items[m_current_history_item];
}
void History::go_back()
{
VERIFY(can_go_back());
m_current_history_item--;
}
void History::go_forward()
{
VERIFY(can_go_forward());
m_current_history_item++;
}
void History::clear()
{
m_items = {};
m_current_history_item = -1;
}