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/*
* SPDX-FileCopyrightText: 2011 Tirtha Chatterjee <[email protected]>
*
* Based on the Itemviews NG project from Trolltech Labs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "kitemlistkeyboardsearchmanager.h"
KItemListKeyboardSearchManager::KItemListKeyboardSearchManager(QObject *parent)
: QObject(parent)
, m_timeout(1000)
{
m_keyboardInputTime.invalidate();
}
KItemListKeyboardSearchManager::~KItemListKeyboardSearchManager() = default;
bool KItemListKeyboardSearchManager::shouldClearSearchIfInputTimeReached()
{
const bool keyboardTimeWasValid = m_keyboardInputTime.isValid();
const qint64 keyboardInputTimeElapsed = m_keyboardInputTime.restart();
return (keyboardInputTimeElapsed > m_timeout) || !keyboardTimeWasValid;
}
bool KItemListKeyboardSearchManager::isSearchAsYouTypeActive() const
{
return !m_searchedString.isEmpty() && !m_keyboardInputTime.hasExpired(m_timeout);
}
void KItemListKeyboardSearchManager::addKeys(const QString &keys)
{
if (shouldClearSearchIfInputTimeReached()) {
m_searchedString.clear();
m_lastSuccessfulSearch.clear();
}
const bool newSearch = m_searchedString.isEmpty();
// Do not start a new search if the user pressed Space. Only add
// it to the search string if a search is in progress already.
if (newSearch && keys == QLatin1Char(' ')) {
return;
}
if (!keys.isEmpty()) {
m_searchedString.append(keys);
const QChar firstChar = m_searchedString.at(0);
const bool allSameChars = m_searchedString.length() > 1 &&
m_searchedString.count(firstChar) == m_searchedString.length();
// Overall strategy:
// 1. First attempt full string matching for exact file names
// 2. If full match fails and user is typing repeating characters,
// fall back to rapid navigation using either:
// - Last successful search string (for extended searches like "444" -> "4444")
// - First character only (original rapid navigation behavior)
bool found = false;
Q_EMIT changeCurrentItem(m_searchedString, newSearch, &found);
if (found) {
m_lastSuccessfulSearch = m_searchedString;
} else if (allSameChars && !newSearch) {
QString rapidSearchString;
if (!m_lastSuccessfulSearch.isEmpty() && m_searchedString.startsWith(m_lastSuccessfulSearch)) {
rapidSearchString = m_lastSuccessfulSearch;
} else {
rapidSearchString = QString(firstChar);
}
Q_EMIT changeCurrentItem(rapidSearchString, true, &found);
}
}
m_keyboardInputTime.start();
}
void KItemListKeyboardSearchManager::setTimeout(qint64 milliseconds)
{
m_timeout = milliseconds;
}
qint64 KItemListKeyboardSearchManager::timeout() const
{
return m_timeout;
}
void KItemListKeyboardSearchManager::cancelSearch()
{
m_searchedString.clear();
}
void KItemListKeyboardSearchManager::slotCurrentChanged(int current, int previous)
{
Q_UNUSED(previous)
if (current < 0) {
// The current item has been removed. We should cancel the search.
cancelSearch();
}
}
void KItemListKeyboardSearchManager::slotSelectionChanged(const KItemSet ¤t, const KItemSet &previous)
{
if (!previous.isEmpty() && current.isEmpty() && previous.count() > 0 && current.count() == 0) {
// The selection has been emptied. We should cancel the search.
cancelSearch();
}
}
#include "moc_kitemlistkeyboardsearchmanager.cpp"
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