WindowHistoryInformation QtWebKitWebWidget::getHistory() const
{
QVariantHash data;
data[QLatin1String("position")] = m_webView->page()->mainFrame()->scrollPosition();
data[QLatin1String("zoom")] = getZoom();
m_webView->history()->currentItem().setUserData(data);
QWebHistory *history = m_webView->history();
WindowHistoryInformation information;
information.index = history->currentItemIndex();
for (int i = 0; i < history->count(); ++i)
{
const QWebHistoryItem item = history->itemAt(i);
WindowHistoryEntry entry;
entry.url = item.url().toString();
entry.title = item.title();
entry.position = item.userData().toHash().value(QLatin1String("position"), QPoint(0, 0)).toPoint();
entry.zoom = item.userData().toHash().value(QLatin1String("zoom")).toInt();
information.entries.append(entry);
}
return information;
}
void KWebKitPart::slotRestoreFrameState(QWebFrame *frame)
{
QWebPage* page = (frame ? frame->page() : 0);
QWebHistory* history = (page ? page->history() : 0);
// No history item...
if (!history || history->count() < 1)
return;
QWebHistoryItem currentHistoryItem (history->currentItem());
// Update the scroll position if needed. See comment in slotSaveFrameState above.
if (frame->baseUrl().resolved(frame->url()) == currentHistoryItem.url()) {
const QPoint currentPos (frame->scrollPosition());
const QPoint desiredPos (currentHistoryItem.userData().toPoint());
if (currentPos.isNull() && !desiredPos.isNull()) {
frame->setScrollPosition(desiredPos);
}
}
}
void WebKitBrowserExtension::restoreState(QDataStream &stream)
{
KUrl u;
QByteArray historyData;
qint32 xOfs = -1, yOfs = -1, historyItemIndex = -1;
stream >> u >> xOfs >> yOfs >> historyItemIndex >> historyData;
QWebHistory* history = (view() ? view()->page()->history() : 0);
if (history) {
bool success = false;
if (history->count() == 0) { // Handle restoration: crash recovery, tab close undo, session restore
if (!historyData.isEmpty()) {
historyData = qUncompress(historyData); // uncompress the history data...
QBuffer buffer (&historyData);
if (buffer.open(QIODevice::ReadOnly)) {
QDataStream stream (&buffer);
view()->page()->setProperty("HistoryNavigationLocked", true);
stream >> *history;
QWebHistoryItem currentItem (history->currentItem());
if (currentItem.isValid()) {
if (currentItem.userData().isNull() && (xOfs != -1 || yOfs != -1)) {
const QPoint scrollPos (xOfs, yOfs);
currentItem.setUserData(scrollPos);
}
// NOTE 1: The following Konqueror specific workaround is necessary
// because Konqueror only preserves information for the last visited
// page. However, we save the entire history content in saveState and
// and hence need to elimiate all but the current item here.
// NOTE 2: This condition only applies when Konqueror is restored from
// abnormal termination ; a crash and/or a session restoration.
if (QCoreApplication::applicationName() == QLatin1String("konqueror")) {
history->clear();
}
//kDebug() << "Restoring URL:" << currentItem.url();
m_part->setProperty("NoEmitOpenUrlNotification", true);
history->goToItem(currentItem);
}
}
}
success = (history->count() > 0);
} else { // Handle navigation: back and forward button navigation.