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+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009-2012 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009 by Yoram Bar-Haim <<yoram.b at zend dot com>
+* Copyright (C) 2009-2011 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 "autosaver.h"
+#include "tabhistory.h"
+#include "tabwindow.h"
+#include "webwindow.h"
+#include "webpage.h"
+
+// KDE Includes
+#include <KStandardDirs>
+#include <KUrl>
+
+// Qt Includes
+#include <QFile>
+#include <QDomDocument>
+
+
+// Only used internally
+bool readSessionDocument(QDomDocument & document, const QString & sessionFilePath)
+{
+ QFile sessionFile(sessionFilePath);
+
+ if (!sessionFile.exists())
+ return false;
+
+ if (!sessionFile.open(QFile::ReadOnly))
+ {
+ kDebug() << "Unable to open session file" << sessionFile.fileName();
+ return false;
+ }
+
+ if (!document.setContent(&sessionFile, false))
+ {
+ kDebug() << "Unable to parse session file" << sessionFile.fileName();
+ return false;
+ }
+
+ return true;
+}
+
+
+int loadTabs(TabWindow *tw, QDomElement & window, bool useFirstTab)
+{
+ int currentTab = 0;
+
+ for (unsigned int tabNo = 0; tabNo < window.elementsByTagName("tab").length(); tabNo++)
+ {
+ QDomElement tab = window.elementsByTagName("tab").at(tabNo).toElement();
+ if (tab.hasAttribute("currentTab"))
+ currentTab = tabNo;
+
+ KUrl u = KUrl(tab.attribute("url"));
+
+ TabHistory tabHistory;
+ tabHistory.title = tab.attribute("title");
+ tabHistory.url = tab.attribute("url");
+ QDomCDATASection historySection = tab.firstChild().toCDATASection();
+ tabHistory.history = QByteArray::fromBase64(historySection.data().toAscii());
+
+ if (tabNo == 0 && useFirstTab)
+ {
+ tw->loadUrl(u, Rekonq::CurrentTab, &tabHistory);
+ }
+ else
+ {
+ tw->loadUrl(u, Rekonq::NewTab, &tabHistory);
+ }
+ }
+
+ return currentTab;
+}
+
+
+// -------------------------------------------------------------------------------------------------
+
+
+QWeakPointer<SessionManager> SessionManager::s_sessionyManager;
+
+
+SessionManager *SessionManager::self()
+{
+ if (s_sessionyManager.isNull())
+ {
+ s_sessionyManager = new SessionManager(qApp);
+ }
+ return s_sessionyManager.data();
+}
+
+
+// ----------------------------------------------------------------------------------------------
+
+
+SessionManager::SessionManager(QObject *parent)
+ : QObject(parent)
+ , m_safe(true)
+ , m_isSessionEnabled(false)
+ , m_saveTimer(new AutoSaver(this))
+{
+ // AutoSaver. Save your hd from frying...
+ connect(m_saveTimer, SIGNAL(saveNeeded()), this, SLOT(save()));
+
+ m_sessionFilePath = KStandardDirs::locateLocal("appdata" , "session");
+}
+
+
+void SessionManager::saveSession()
+{
+ if (!m_isSessionEnabled)
+ return;
+
+ m_saveTimer->changeOccurred();
+}
+
+
+void SessionManager::save()
+{
+ if (!m_isSessionEnabled || !m_safe)
+ return;
+
+ m_safe = false;
+
+ kDebug() << "SAVING SESSION...";
+
+ QFile sessionFile(m_sessionFilePath);
+ if (!sessionFile.open(QFile::WriteOnly | QFile::Truncate))
+ {
+ kDebug() << "Unable to open session file" << sessionFile.fileName();
+ return;
+ }
+ TabWindowList wl = rApp->tabWindowList();
+ QDomDocument document("session");
+ QDomElement session = document.createElement("session");
+ document.appendChild(session);
+
+ Q_FOREACH(const QWeakPointer<TabWindow> &w, wl)
+ {
+ QDomElement window = document.createElement("window");
+ int tabInserted = 0;
+
+ window.setAttribute("name", w.data()->objectName());
+
+ for (signed int tabNo = 0; tabNo < w.data()->count(); tabNo++)
+ {
+ KUrl u = w.data()->webWindow(tabNo)->url();
+
+ tabInserted++;
+ QDomElement tab = document.createElement("tab");
+ tab.setAttribute("title", w.data()->webWindow(tabNo)->title()); // redundant, but needed for closedSites()
+ // as there's not way to read out the historyData
+ tab.setAttribute("url", u.url());
+ if (w.data()->currentIndex() == tabNo)
+ {
+ tab.setAttribute("currentTab", 1);
+ }
+ QByteArray history;
+ QDataStream historyStream(&history, QIODevice::ReadWrite);
+ historyStream << *(w.data()->webWindow(tabNo)->page()->history());
+ QDomCDATASection historySection = document.createCDATASection(history.toBase64());
+
+ tab.appendChild(historySection);
+ window.appendChild(tab);
+ }
+ if (tabInserted > 0)
+ session.appendChild(window);
+ }
+
+ QTextStream TextStream(&sessionFile);
+ document.save(TextStream, 2);
+ sessionFile.close();
+
+ m_safe = true;
+ return;
+}
+
+
+bool SessionManager::restoreSessionFromScratch()
+{
+ QDomDocument document("session");
+
+ if (!readSessionDocument(document, m_sessionFilePath))
+ return false;
+
+ for (unsigned int winNo = 0; winNo < document.elementsByTagName("window").length(); winNo++)
+ {
+ QDomElement window = document.elementsByTagName("window").at(winNo).toElement();
+
+ TabWindow *tw = rApp->newTabWindow();
+
+ int currentTab = loadTabs(tw, window, false);
+
+ tw->setCurrentIndex(currentTab);
+ }
+
+ return true;
+}
+
+
+void SessionManager::restoreCrashedSession()
+{
+ QDomDocument document("session");
+
+ if (!readSessionDocument(document, m_sessionFilePath))
+ return;
+
+ for (unsigned int winNo = 0; winNo < document.elementsByTagName("window").length(); winNo++)
+ {
+ QDomElement window = document.elementsByTagName("window").at(winNo).toElement();
+
+ TabWindow *tw = (winNo == 0)
+ ? rApp->tabWindow()
+ : rApp->newTabWindow();
+
+ KUrl u = tw->currentWebWindow()->url();
+ bool useCurrentTab = (u.isEmpty() || u.protocol() == QL1S("about"));
+ int currentTab = loadTabs(tw, window, useCurrentTab);
+
+ tw->setCurrentIndex(currentTab);
+ }
+
+ setSessionManagementEnabled(true);
+}
+
+
+int SessionManager::restoreSavedSession()
+{
+ QDomDocument document("session");
+
+ if (!readSessionDocument(document, m_sessionFilePath))
+ return 0;
+
+ unsigned int winNo;
+
+ for (winNo = 0; winNo < document.elementsByTagName("window").length(); winNo++)
+ {
+ QDomElement window = document.elementsByTagName("window").at(winNo).toElement();
+
+ TabWindow *tw = rApp->newTabWindow();
+
+ int currentTab = loadTabs(tw, window, true);
+
+ tw->setCurrentIndex(currentTab);
+ }
+
+ return winNo;
+}
+
+
+bool SessionManager::restoreTabWindow(TabWindow* window)
+{
+ QDomDocument document("session");
+
+ if (!readSessionDocument(document, m_sessionFilePath))
+ return false;
+
+ unsigned int winNo;
+
+ for (winNo = 0; winNo < document.elementsByTagName("window").length(); winNo++)
+ {
+ QDomElement savedWindowElement = document.elementsByTagName("window").at(winNo).toElement();
+
+ if (window->objectName() != savedWindowElement.attribute("name", ""))
+ continue;
+
+ int currentTab = loadTabs(window, savedWindowElement, false);
+
+ window->setCurrentIndex(currentTab);
+
+ return true;
+ }
+
+ return false;
+}
+
+
+QList<TabHistory> SessionManager::closedSites()
+{
+ QList<TabHistory> list;
+ QDomDocument document("session");
+
+ if (!readSessionDocument(document, m_sessionFilePath))
+ return list;
+
+ for (unsigned int tabNo = 0; tabNo < document.elementsByTagName("tab").length(); tabNo++)
+ {
+ QDomElement tab = document.elementsByTagName("tab").at(tabNo).toElement();
+
+ TabHistory tabHistory;
+
+ tabHistory.title = tab.attribute("title");
+ tabHistory.url = tab.attribute("url");
+
+ QDomCDATASection historySection = tab.firstChild().toCDATASection();
+ tabHistory.history = QByteArray::fromBase64(historySection.data().toAscii());
+
+ list << tabHistory;
+ }
+
+ return list;
+}