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/***************************************************************************
* Copyright (C) 2009 by Frank Reininghaus ([email protected]) *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "dolphindetailsviewexpander.h"
#include "dolphindetailsview.h"
#include "dolphinmodel.h"
#include "dolphinsortfilterproxymodel.h"
#include <kdirlister.h>
#include <kdirmodel.h>
DolphinDetailsViewExpander::DolphinDetailsViewExpander(DolphinDetailsView* parent,
const QSet<KUrl>& urlsToExpand) :
QObject(parent),
m_detailsView(parent),
m_dirLister(0),
m_dolphinModel(0),
m_proxyModel(0)
{
Q_ASSERT(parent != 0);
m_proxyModel = qobject_cast<const DolphinSortFilterProxyModel*>(parent->model());
Q_ASSERT(m_proxyModel != 0);
m_dolphinModel = qobject_cast<const DolphinModel*>(m_proxyModel->sourceModel());
Q_ASSERT(m_dolphinModel != 0);
m_dirLister = m_dolphinModel->dirLister();
Q_ASSERT(m_dirLister != 0);
if(!urlsToExpand.isEmpty()) {
// The URLs must be sorted. E.g. /home/user/ cannot be expanded before /home/
// because it is not known to the dir model before.
m_urlsToExpand = urlsToExpand.toList();
qSort(m_urlsToExpand);
// The dir lister must have completed the folder listing before a subfolder can be expanded.
connect(m_dirLister, SIGNAL(completed()), this, SLOT(slotDirListerCompleted()));
}
else {
// There is nothing to expand - destroy this object
deleteLater();
}
}
DolphinDetailsViewExpander::~DolphinDetailsViewExpander()
{
}
void DolphinDetailsViewExpander::stop()
{
disconnect(m_dirLister, SIGNAL(completed()), this, SLOT(slotDirListerCompleted()));
deleteLater();
}
void DolphinDetailsViewExpander::slotDirListerCompleted()
{
QModelIndex dirIndex;
while(!m_urlsToExpand.isEmpty() && !dirIndex.isValid()) {
const KUrl url = m_urlsToExpand.takeFirst();
dirIndex = m_dolphinModel->indexForUrl(url);
}
if(dirIndex.isValid()) {
// A valid model index was found. Note that only one item is expanded in each call of this slot
// because expanding any item will trigger KDirLister::openUrl(...) via KDirModel::fetchMore(...),
// and we can only continue when the dir lister is done.
const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
m_detailsView->expand(proxyIndex);
}
if(m_urlsToExpand.isEmpty()) {
emit completed();
stop();
}
}
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