Bug 28711 – Qt WebKit crash in QWebHistory::saveState()

• Component: WebKit Qt
• Status: RESOLVED FIXED

[Jędrzej Nowacki]

Qt WebKit crash in QWebHistory::saveState() if history instance was created from empty QWebPage and loaded by QWebHistory::restoreState(). 

Example, this code cause crash:
{
    QByteArray tmp = hist->saveState();
    QWebPage* page2 = new QWebPage(this);
    QWebHistory* hist2 = page2->history();
    for (unsigned i = 0; i < 5; i++){
        hist2->restoreState(tmp);
        hist2->saveState();
    }
    delete page2;
}

Of course, the application should not crash :-)

[Jędrzej Nowacki]

Created attachment 38546 [details]
Path to QWebHistory::clear()

QWebHistory::clear() shouldn't create empty entry (item) if QWebHistory::count()<1;

Additional autotests were added.

[Ariya Hidayat]

Landed r47818
in http://trac.webkit.org/changeset/47818