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/*
* SPDX-FileCopyrightText: 2006-2010 Peter Penz <[email protected]>
* SPDX-FileCopyrightText: 2006 Gregor Kališnik <[email protected]>
* SPDX-FileCopyrightText: 2012 Stuart Citrin <[email protected]>
* SPDX-FileCopyrightText: 2026 Alessio Bonfiglio <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "filterbar.h"
#include <KConfigGroup>
#include <KLocalizedString>
#include <KSharedConfig>
#include <KColorScheme>
#include <QAction>
#include <QApplication>
#include <QComboBox>
#include <QHBoxLayout>
#include <QKeyEvent>
#include <QLineEdit>
#include <QPalette>
#include <QToolButton>
FilterBar::FilterBar(QWidget *parent)
: AnimatedHeightWidget{parent}
{
QWidget *contentsContainer = prepareContentsContainer();
// Create button to lock text when changing folders
m_lockButton = new QToolButton(contentsContainer);
m_lockButton->setAutoRaise(true);
m_lockButton->setCheckable(true);
m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
m_lockButton->setToolTip(i18nc("@info:tooltip", "Keep Filter When Changing Folders"));
connect(m_lockButton, &QToolButton::toggled, this, &FilterBar::slotToggleLockButton);
// Create filter editor
m_filterInput = new QLineEdit(contentsContainer);
m_filterInput->setLayoutDirection(Qt::LeftToRight);
m_filterInput->setClearButtonEnabled(true);
m_filterInput->setPlaceholderText(i18n("Filter…"));
connect(m_filterInput, &QLineEdit::textChanged, this, &FilterBar::filterChanged);
connect(m_filterInput, &QLineEdit::textChanged, this, &FilterBar::updateInvalidPatternView);
setFocusProxy(m_filterInput);
m_invalidPatternAction = new QAction(m_filterInput);
m_invalidPatternAction->setCheckable(false);
m_invalidPatternAction->setIcon(QIcon::fromTheme(QStringLiteral("error-symbolic")));
m_invalidPatternAction->setToolTip(i18n("Invalid expression"));
m_filterInput->addAction(m_invalidPatternAction, QLineEdit::TrailingPosition);
m_invalidPatternAction->setVisible(false);
// Create case sensitive button
m_caseSensitiveButton = new QToolButton(contentsContainer);
m_caseSensitiveButton->setAutoRaise(true);
m_caseSensitiveButton->setCheckable(true);
m_caseSensitiveButton->setIcon(QIcon::fromTheme(QStringLiteral("format-text-superscript"), QIcon::fromTheme(QStringLiteral("format-text-bold"))));
m_caseSensitiveButton->setToolTip(i18nc("@info:tooltip", "Match case"));
connect(m_caseSensitiveButton, &QToolButton::toggled, this, &FilterBar::caseSensitiveChanged);
connect(m_caseSensitiveButton, &QToolButton::toggled, this, &FilterBar::updateInvalidPatternView);
// Create filter mode combobox
m_filterModeComboBox = new QComboBox(contentsContainer);
m_filterModeComboBox->addItem(i18nc("@item:inlistbox", "Plain Text"), KFileItemModelFilter::FilterMode::PlainText);
m_filterModeComboBox->addItem(i18nc("@item:inlistbox", "Glob Pattern"), KFileItemModelFilter::FilterMode::Glob);
m_filterModeComboBox->addItem(i18nc("@item:inlistbox", "Regular Expression"), KFileItemModelFilter::FilterMode::Regex);
connect(m_filterModeComboBox, &QComboBox::currentIndexChanged, this, [this](int index) {
Q_EMIT filterModeChanged(m_filterModeComboBox->itemData(index).value<KFileItemModelFilter::FilterMode>());
});
connect(m_filterModeComboBox, &QComboBox::currentIndexChanged, this, &FilterBar::updateInvalidPatternView);
// Create close button
QToolButton *closeButton = new QToolButton(contentsContainer);
closeButton->setAutoRaise(true);
closeButton->setIcon(QIcon::fromTheme(QStringLiteral("dialog-close")));
closeButton->setToolTip(i18nc("@info:tooltip", "Hide Filter Bar"));
connect(closeButton, &QToolButton::clicked, this, &FilterBar::closeRequest);
// Apply layout
QHBoxLayout *hLayout = new QHBoxLayout(contentsContainer);
hLayout->setContentsMargins(0, 0, 0, 0);
hLayout->addWidget(m_lockButton);
hLayout->addWidget(m_filterInput);
hLayout->addWidget(m_caseSensitiveButton);
hLayout->addWidget(m_filterModeComboBox);
hLayout->addWidget(closeButton);
setTabOrder({m_lockButton, m_caseSensitiveButton, m_filterModeComboBox, closeButton, m_filterInput});
KConfigGroup filterBarConfig(KSharedConfig::openStateConfig(), QStringLiteral("FilterBar"));
bool caseSensitiveEnabled = filterBarConfig.readEntry("caseSensitive", false);
int filterModeComboBoxIndex = filterBarConfig.readEntry("filterMode", m_filterModeComboBox->findData(KFileItemModelFilter::FilterMode::Glob));
m_caseSensitiveButton->setChecked(caseSensitiveEnabled);
m_filterModeComboBox->setCurrentIndex(filterModeComboBoxIndex);
}
FilterBar::~FilterBar()
{
KConfigGroup filterBarConfig(KSharedConfig::openStateConfig(), QStringLiteral("FilterBar"));
filterBarConfig.writeEntry("caseSensitive", this->m_caseSensitiveButton->isChecked());
filterBarConfig.writeEntry("filterMode", this->m_filterModeComboBox->currentIndex());
}
void FilterBar::closeFilterBar()
{
setVisible(false, WithAnimation);
clear();
if (m_lockButton) {
m_lockButton->setChecked(false);
}
}
void FilterBar::selectAll()
{
m_filterInput->selectAll();
}
KFileItemModelFilter::FilterMode FilterBar::filterMode() const
{
return m_filterModeComboBox->itemData(m_filterModeComboBox->currentIndex()).value<KFileItemModelFilter::FilterMode>();
}
bool FilterBar::isCaseSensitive() const
{
return m_caseSensitiveButton->isChecked();
}
void FilterBar::clear()
{
m_filterInput->clear();
}
void FilterBar::clearIfUnlocked()
{
if (!m_lockButton || !(m_lockButton->isChecked())) {
clear();
}
}
void FilterBar::slotToggleLockButton(bool checked)
{
if (checked) {
m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-locked")));
} else {
m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
clear();
}
}
void FilterBar::updateInvalidPatternView()
{
bool valid = true;
KFileItemModelFilter::FilterMode current_filter_mode = filterMode();
if (current_filter_mode != KFileItemModelFilter::FilterMode::PlainText) {
QRegularExpression regExp = QRegularExpression();
QString pattern = m_filterInput->text();
QRegularExpression::PatternOptions options =
m_caseSensitiveButton->isChecked() ? QRegularExpression::NoPatternOption : QRegularExpression::CaseInsensitiveOption;
if (current_filter_mode == KFileItemModelFilter::FilterMode::Regex) {
regExp.setPattern(pattern);
regExp.setPatternOptions(options);
} else if (current_filter_mode == KFileItemModelFilter::FilterMode::Glob) {
regExp.setPattern(QRegularExpression::wildcardToRegularExpression(pattern, QRegularExpression::UnanchoredWildcardConversion));
regExp.setPatternOptions(options);
}
valid = regExp.isValid();
}
if (valid) {
m_filterInput->setPalette(QPalette());
m_invalidPatternAction->setVisible(false);
} else {
auto pal = m_filterInput->palette();
KColorScheme::adjustBackground(pal, KColorScheme::NegativeBackground);
m_filterInput->setPalette(pal);
m_invalidPatternAction->setVisible(true);
}
}
void FilterBar::showEvent(QShowEvent *event)
{
if (!event->spontaneous()) {
m_filterInput->setFocus();
}
}
void FilterBar::keyPressEvent(QKeyEvent *event)
{
switch (event->key()) {
case Qt::Key_Escape:
if (m_filterInput->text().isEmpty()) {
Q_EMIT closeRequest();
} else {
m_filterInput->clear();
}
return;
case Qt::Key_Enter:
case Qt::Key_Return:
Q_EMIT focusViewRequest();
return;
case Qt::Key_Down:
case Qt::Key_PageDown:
case Qt::Key_Up:
case Qt::Key_PageUp: {
Q_EMIT focusViewRequest();
QWidget *focusWidget = QApplication::focusWidget();
if (focusWidget && focusWidget != this) {
QApplication::sendEvent(focusWidget, event);
}
return;
}
default:
break;
}
QWidget::keyPressEvent(event);
}
int FilterBar::preferredHeight() const
{
return std::max({m_filterInput->sizeHint().height(),
m_lockButton->sizeHint().height(),
m_caseSensitiveButton->sizeHint().height(),
m_filterModeComboBox->sizeHint().height()});
}
#include "moc_filterbar.cpp"
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