Session Management (restore on crash)

This is HEAVILY based on code from Lionel and Yoram branches.
But this code behaves differently: it restores rekonq tabs (just) on crash.
Thanks to Lionel suggestions, it seems "better" than my initial idea :)

It is quite extensible. We need just to fix it better as possible and then
manage its behaviour in newInstance code.. ;)

1 files changed, 116 insertions, 0 deletions

diff --git a/src/sessionmanager.cpp b/src/sessionmanager.cpp
new file mode 100644
index 00000000..34466e6e
--- /dev/null
+++ b/src/sessionmanager.cpp
@@ -0,0 +1,116 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009 by Yoram Bar-Haim <<yoram.b at zend dot com>
+* Copyright (C) 2009 by Lionel Chauvin <megabigbug@yahoo.fr>
+*
+*
+* 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) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* 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, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "sessionmanager.h"
+#include "sessionmanager.moc"
+
+// Local Includes
+#include "application.h"
+#include "mainwindow.h"
+#include "mainview.h"
+
+// KDE Includes
+#include <KStandardDirs>
+#include <KDebug>
+
+// Qt Includes
+#include <QFile>
+#include <QDataStream>
+
+
+SessionManager::SessionManager(QObject *parent)
+    : QObject(parent)
+{
+    m_sessionFilePath = KStandardDirs::locateLocal("appdata" , "session");
+}
+
+
+SessionManager::~SessionManager()
+{
+    // rekonq is closing well. no need for session file
+    QFile sessionFile(m_sessionFilePath);
+    sessionFile.remove();
+}
+
+
+void SessionManager::saveSession()
+{
+    QFile sessionFile(m_sessionFilePath);
+    if (!sessionFile.open(QFile::WriteOnly | QFile::Truncate))
+    {
+        kWarning() << "Unable to open session file" << sessionFile.fileName();
+        return;
+    }
+    QDataStream out(&sessionFile);
+    MainWindowList wl = Application::instance()->mainWindowList();
+    foreach(QPointer<MainWindow> w, wl)
+    {
+        out << QByteArray("window");
+        MainView *mv = w->mainView();
+        for (int i = 0 ; i < mv->count() ; i++)
+        {
+            out << mv->webView(i)->url().toEncoded();
+        }
+    }
+    return;
+}
+
+
+bool SessionManager::restoreSession()
+{
+    QFile sessionFile(m_sessionFilePath);
+    if (!sessionFile.exists())
+        return false;
+    if (!sessionFile.open(QFile::ReadOnly))
+    {
+        kWarning() << "Unable to open session file" << sessionFile.fileName();
+        return false;
+    }
+
+    QDataStream in(&sessionFile);
+    int i = 0;
+    while (!sessionFile.atEnd())
+    {
+        ++i;
+        QByteArray data;
+        in >> data;
+        if(data == QByteArray("window"))
+        {
+            Application::instance()->newMainWindow();
+        }
+        else
+        {
+            Application::instance()->loadUrl(data,Rekonq::NewCurrentTab);
+        }
+    }
+
+    // session is restored. remove session file.
+    sessionFile.remove();
+    return true;
+}