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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "tracer.h"
#include "topicchooser.h"
#include "helpenginewrapper.h"
#include <QKeyEvent>
#include <QStandardItemModel>
#include <QSortFilterProxyModel>
#include <QUrl>
#include <QtHelp/QHelpLink>
#include <algorithm>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
// Sort QHelpLink lists such that deprecated QtLabs entries are last.
static bool isNotQtLabsUrl(const QHelpLink &hl)
{
return !hl.url.host().contains("qtlabsplatform"_L1);
}
TopicChooser::TopicChooser(QWidget *parent, const QString &keyword, QList<QHelpLink> docs)
: QDialog(parent)
, m_filterModel(new QSortFilterProxyModel(this))
{
std::stable_partition(docs.begin(), docs.end(), isNotQtLabsUrl);
TRACE_OBJ
ui.setupUi(this);
setFocusProxy(ui.lineEdit);
ui.lineEdit->installEventFilter(this);
ui.lineEdit->setPlaceholderText(tr("Filter"));
ui.label->setText(tr("Choose a topic for <b>%1</b>:").arg(keyword));
QStandardItemModel *model = new QStandardItemModel(this);
m_filterModel->setSourceModel(model);
m_filterModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
for (const auto &doc : docs) {
m_links.append(doc.url);
QStandardItem *item = new QStandardItem(doc.title);
item->setToolTip(doc.url.toString());
model->appendRow(item);
}
ui.listWidget->setModel(m_filterModel);
ui.listWidget->setUniformItemSizes(true);
ui.listWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
if (m_filterModel->rowCount() != 0)
ui.listWidget->setCurrentIndex(m_filterModel->index(0, 0));
connect(ui.buttonCancel, &QAbstractButton::clicked,
this, &QDialog::reject);
connect(ui.buttonDisplay, &QAbstractButton::clicked,
this, &TopicChooser::acceptDialog);
connect(ui.lineEdit, &QLineEdit::textChanged,
this, &TopicChooser::setFilter);
connect(ui.listWidget, &QAbstractItemView::activated,
this, &TopicChooser::activated);
const QByteArray ba = HelpEngineWrapper::instance().topicChooserGeometry();
if (!ba.isEmpty())
restoreGeometry(ba);
}
TopicChooser::~TopicChooser()
{
HelpEngineWrapper::instance().setTopicChooserGeometry(saveGeometry());
}
QUrl TopicChooser::link() const
{
TRACE_OBJ
if (m_activedIndex.isValid())
return m_links.at(m_filterModel->mapToSource(m_activedIndex).row());
return QUrl();
}
void TopicChooser::acceptDialog()
{
TRACE_OBJ
m_activedIndex = ui.listWidget->currentIndex();
accept();
}
void TopicChooser::setFilter(const QString &pattern)
{
TRACE_OBJ
m_filterModel->setFilterFixedString(pattern);
if (m_filterModel->rowCount() != 0 && !ui.listWidget->currentIndex().isValid())
ui.listWidget->setCurrentIndex(m_filterModel->index(0, 0));
}
void TopicChooser::activated(const QModelIndex &index)
{
TRACE_OBJ
m_activedIndex = index;
accept();
}
bool TopicChooser::eventFilter(QObject *object, QEvent *event)
{
TRACE_OBJ
if (object == ui.lineEdit && event->type() == QEvent::KeyPress) {
QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
switch (keyEvent->key()) {
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_PageUp:
case Qt::Key_PageDown:
QCoreApplication::sendEvent(ui.listWidget, event);
break;
}
} else if (ui.lineEdit && event->type() == QEvent::FocusIn
&& static_cast<QFocusEvent *>(event)->reason() != Qt::MouseFocusReason) {
ui.lineEdit->selectAll();
ui.lineEdit->setFocus();
}
return QDialog::eventFilter(object, event);
}
QT_END_NAMESPACE