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Fix crash when restoring a session stored with Dolphin 4.13 or earlier
Since DolphinTabPage::saveState() and DolphinTabPage::restoreState(const QByteArray& state) save and restore the state of each tab in a different format than DolphinMainWindow did before the refactoring, we can run into problems: the first time a user logs into a session that has Dolphin 4.14, Dolphin might read session data that does not contain the QByteArray that DolphinTabPage wants to read the data from. In restoreState, isSplitViewEnabled will thus have the value false, and no secondary view will be created. Later on, m_primaryViewActive will also be set to false, but the else branch of the following "if (m_primaryViewActive)" then tries to activate the secondary view, which does not exist -> we get a crash. The easiest solution is to not restore the tab state if no session data in the new format is found. BUG: 338187 REVIEW: 119718 FIXED-IN: 4.14.0
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@ -187,6 +187,10 @@ QByteArray DolphinTabPage::saveState() const
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void DolphinTabPage::restoreState(const QByteArray& state)
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{
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if (state.isEmpty()) {
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return;
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}
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QByteArray sd = state;
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QDataStream stream(&sd, QIODevice::ReadOnly);
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