+/***************************************************************************
+ * Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at> *
+ * *
+ * 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 "revisioncontrolobserver.h"
+
+#include "dolphinmodel.h"
+#include "revisioncontrolplugin.h"
+
+#include <kdirlister.h>
+
+#include <QAbstractProxyModel>
+#include <QAbstractItemView>
+#include <QTimer>
+
+RevisionControlObserver::RevisionControlObserver(QAbstractItemView* view) :
+ QObject(view),
+ m_view(view),
+ m_dirLister(0),
+ m_dolphinModel(0),
+ m_dirVerificationTimer(0),
+ m_plugin(0)
+{
+ Q_ASSERT(view != 0);
+
+ QAbstractProxyModel* proxyModel = qobject_cast<QAbstractProxyModel*>(view->model());
+ m_dolphinModel = (proxyModel == 0) ?
+ qobject_cast<DolphinModel*>(view->model()) :
+ qobject_cast<DolphinModel*>(proxyModel->sourceModel());
+ if (m_dolphinModel != 0) {
+ m_dirLister = m_dolphinModel->dirLister();
+ connect(m_dirLister, SIGNAL(completed()),
+ this, SLOT(delayedDirectoryVerification()));
+ // TODO:
+ // connect(m_dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
+ // this, SLOT(refreshItems()));
+
+ // The verification timer specifies the timeout until the shown directory
+ // is checked whether it is versioned. Per default it is assumed that users
+ // don't iterate through versioned directories and a high timeout is used
+ // The timeout will be decreased as soon as a versioned directory has been
+ // found (see verifyDirectory()).
+ m_dirVerificationTimer = new QTimer(this);
+ m_dirVerificationTimer->setSingleShot(true);
+ m_dirVerificationTimer->setInterval(500);
+ connect(m_dirVerificationTimer, SIGNAL(timeout()),
+ this, SLOT(verifyDirectory()));
+ }
+}
+
+RevisionControlObserver::~RevisionControlObserver()
+{
+ delete m_plugin;
+ m_plugin = 0;
+}
+
+void RevisionControlObserver::delayedDirectoryVerification()
+{
+ m_dirVerificationTimer->start();
+}
+
+void RevisionControlObserver::verifyDirectory()
+{
+ KUrl revisionControlUrl = m_dirLister->url();
+ if (!revisionControlUrl.isLocalFile()) {
+ return;
+ }
+
+ if (m_plugin == 0) {
+ // TODO: just for testing purposes. A plugin approach will be used later.
+ m_plugin = new SubversionPlugin();
+ }
+
+ revisionControlUrl.addPath(m_plugin->fileName());
+ KFileItem item = m_dirLister->findByUrl(revisionControlUrl);
+ if (item.isNull()) {
+ // The directory is not versioned. Reset the verification timer to a higher
+ // value, so that browsing through non-versioned directories is not slown down
+ // by an immediate verification.
+ m_dirVerificationTimer->setInterval(500);
+ } else {
+ // The directory is versioned. Assume that the user will further browse through
+ // versioned directories and decrease the verification timer.
+ m_dirVerificationTimer->setInterval(100);
+ updateItemStates();
+ }
+}
+
+void RevisionControlObserver::updateItemStates()
+{
+ Q_ASSERT(m_plugin != 0);
+ const KUrl directory = m_dirLister->url();
+ if (!m_plugin->beginRetrieval(directory.toLocalFile(KUrl::AddTrailingSlash))) {
+ return;
+ }
+
+ const int rowCount = m_dolphinModel->rowCount();
+ for (int row = 0; row < rowCount; ++row) {
+ const QModelIndex index = m_dolphinModel->index(row, DolphinModel::Revision);
+ const KFileItem item = m_dolphinModel->itemForIndex(index);
+ const RevisionControlPlugin::RevisionState revision = m_plugin->revisionState(item.name());
+ m_dolphinModel->setData(index, QVariant(static_cast<int>(revision)), Qt::DecorationRole);
+ }
+ m_view->viewport()->repaint(); // TODO: this should not be necessary, as DolphinModel::setData() calls dataChanged()
+
+ m_plugin->endRetrieval();
+}
+
+#include "revisioncontrolobserver.moc"
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