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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "qhelpengine.h"
#include "qhelpengine_p.h"
#include "qhelpdbreader_p.h"
#include "qhelpcontentwidget.h"
#include "qhelpindexwidget.h"
#include "qhelpsearchengine.h"
#include "qhelpcollectionhandler_p.h"
#include "qhelpfilterengine.h"
#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/QPluginLoader>
#include <QtCore/QTimer>
#include <QtWidgets/QApplication>
#include <QtSql/QSqlQuery>
QT_BEGIN_NAMESPACE
void QHelpEnginePrivate::init(const QString &collectionFile,
QHelpEngineCore *helpEngineCore)
{
QHelpEngineCorePrivate::init(collectionFile, helpEngineCore);
if (!contentModel)
contentModel = new QHelpContentModel(this);
if (!indexModel)
indexModel = new QHelpIndexModel(this);
connect(helpEngineCore, &QHelpEngineCore::setupFinished,
this, &QHelpEnginePrivate::scheduleApplyCurrentFilter);
connect(helpEngineCore, &QHelpEngineCore::currentFilterChanged,
this, &QHelpEnginePrivate::scheduleApplyCurrentFilter);
connect(helpEngineCore->filterEngine(), &QHelpFilterEngine::filterActivated,
this, &QHelpEnginePrivate::scheduleApplyCurrentFilter);
}
void QHelpEnginePrivate::scheduleApplyCurrentFilter()
{
if (!error.isEmpty())
return;
if (m_isApplyCurrentFilterScheduled)
return;
m_isApplyCurrentFilterScheduled = true;
QTimer::singleShot(0, this, &QHelpEnginePrivate::applyCurrentFilter);
}
void QHelpEnginePrivate::applyCurrentFilter()
{
m_isApplyCurrentFilterScheduled = false;
const QString filter = usesFilterEngine
? q->filterEngine()->activeFilter()
: currentFilter;
contentModel->createContents(filter);
indexModel->createIndex(filter);
}
void QHelpEnginePrivate::setContentsWidgetBusy()
{
#if QT_CONFIG(cursor)
contentWidget->setCursor(Qt::WaitCursor);
#endif
}
void QHelpEnginePrivate::unsetContentsWidgetBusy()
{
#if QT_CONFIG(cursor)
contentWidget->unsetCursor();
#endif
}
void QHelpEnginePrivate::setIndexWidgetBusy()
{
#if QT_CONFIG(cursor)
indexWidget->setCursor(Qt::WaitCursor);
#endif
}
void QHelpEnginePrivate::unsetIndexWidgetBusy()
{
#if QT_CONFIG(cursor)
indexWidget->unsetCursor();
#endif
}
/*!
\class QHelpEngine
\since 4.4
\inmodule QtHelp
\brief The QHelpEngine class provides access to contents and
indices of the help engine.
*/
/*!
Constructs a new help engine with the given \a parent. The help
engine uses the information stored in the \a collectionFile for
providing help. If the collection file does not already exist,
it will be created.
*/
QHelpEngine::QHelpEngine(const QString &collectionFile, QObject *parent)
: QHelpEngineCore(d = new QHelpEnginePrivate(), parent)
{
d->init(collectionFile, this);
}
/*!
Destroys the help engine object.
*/
QHelpEngine::~QHelpEngine()
{
}
/*!
Returns the content model.
*/
QHelpContentModel *QHelpEngine::contentModel() const
{
return d->contentModel;
}
/*!
Returns the index model.
*/
QHelpIndexModel *QHelpEngine::indexModel() const
{
return d->indexModel;
}
/*!
Returns the content widget.
*/
QHelpContentWidget *QHelpEngine::contentWidget()
{
if (!d->contentWidget) {
d->contentWidget = new QHelpContentWidget();
d->contentWidget->setModel(d->contentModel);
connect(d->contentModel, &QHelpContentModel::contentsCreationStarted,
d, &QHelpEnginePrivate::setContentsWidgetBusy);
connect(d->contentModel, &QHelpContentModel::contentsCreated,
d, &QHelpEnginePrivate::unsetContentsWidgetBusy);
}
return d->contentWidget;
}
/*!
Returns the index widget.
*/
QHelpIndexWidget *QHelpEngine::indexWidget()
{
if (!d->indexWidget) {
d->indexWidget = new QHelpIndexWidget();
d->indexWidget->setModel(d->indexModel);
connect(d->indexModel, &QHelpIndexModel::indexCreationStarted,
d, &QHelpEnginePrivate::setIndexWidgetBusy);
connect(d->indexModel, &QHelpIndexModel::indexCreated,
d, &QHelpEnginePrivate::unsetIndexWidgetBusy);
}
return d->indexWidget;
}
/*!
Returns the default search engine.
*/
QHelpSearchEngine* QHelpEngine::searchEngine()
{
if (!d->searchEngine)
d->searchEngine = new QHelpSearchEngine(this, this);
return d->searchEngine;
}
QT_END_NAMESPACE
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