void WebBackForwardList::restoreFromState(BackForwardListState backForwardListState)
{
Vector<RefPtr<WebBackForwardListItem>> items;
items.reserveInitialCapacity(backForwardListState.items.size());
for (auto& backForwardListItemState : backForwardListState.items) {
backForwardListItemState.identifier = generateWebBackForwardItemID();
items.uncheckedAppend(WebBackForwardListItem::create(WTF::move(backForwardListItemState), m_page->pageID()));
}
m_hasCurrentIndex = !!backForwardListState.currentIndex;
m_currentIndex = backForwardListState.currentIndex.valueOr(0);
m_entries = WTF::move(items);
}
bool WebBackForwardList::restoreFromCFDictionaryRepresentation(CFDictionaryRef dictionary)
{
CFNumberRef cfIndex = (CFNumberRef)CFDictionaryGetValue(dictionary, SessionHistoryCurrentIndexKey());
if (!cfIndex || CFGetTypeID(cfIndex) != CFNumberGetTypeID()) {
LOG(SessionState, "WebBackForwardList dictionary representation does not have a valid current index");
return false;
}
CFIndex currentIndex;
if (!CFNumberGetValue(cfIndex, kCFNumberCFIndexType, ¤tIndex)) {
LOG(SessionState, "WebBackForwardList dictionary representation does not have a valid integer current index");
return false;
}
CFArrayRef cfEntries = (CFArrayRef)CFDictionaryGetValue(dictionary, SessionHistoryEntriesKey());
if (!cfEntries || CFGetTypeID(cfEntries) != CFArrayGetTypeID()) {
LOG(SessionState, "WebBackForwardList dictionary representation does not have a valid list of entries");
return false;
}
CFIndex size = CFArrayGetCount(cfEntries);
if (currentIndex != static_cast<CFIndex>(NoCurrentItemIndex) && currentIndex >= size) {
LOG(SessionState, "WebBackForwardList dictionary representation contains an invalid current index (%ld) for the number of entries (%ld)", currentIndex, size);
return false;
}
if (currentIndex == static_cast<CFIndex>(NoCurrentItemIndex) && size) {
LOG(SessionState, "WebBackForwardList dictionary representation says there is no current item index, but there is a list of %ld entries - this is bogus", size);
return false;
}
BackForwardListItemVector newEntries;
newEntries.reserveCapacity(size);
for (CFIndex i = 0; i < size; ++i) {
CFDictionaryRef entryDictionary = (CFDictionaryRef)CFArrayGetValueAtIndex(cfEntries, i);
if (!entryDictionary || CFGetTypeID(entryDictionary) != CFDictionaryGetTypeID()) {
LOG(SessionState, "WebBackForwardList entry array does not have a valid entry at index %i", (int)i);
return false;
}
CFStringRef entryURL = (CFStringRef)CFDictionaryGetValue(entryDictionary, SessionHistoryEntryURLKey());
if (!entryURL || CFGetTypeID(entryURL) != CFStringGetTypeID()) {
LOG(SessionState, "WebBackForwardList entry at index %i does not have a valid URL", (int)i);
return false;
}
CFStringRef entryTitle = (CFStringRef)CFDictionaryGetValue(entryDictionary, SessionHistoryEntryTitleKey());
if (!entryTitle || CFGetTypeID(entryTitle) != CFStringGetTypeID()) {
LOG(SessionState, "WebBackForwardList entry at index %i does not have a valid title", (int)i);
return false;
}
CFStringRef originalURL = (CFStringRef)CFDictionaryGetValue(entryDictionary, SessionHistoryEntryOriginalURLKey());
if (!originalURL || CFGetTypeID(originalURL) != CFStringGetTypeID()) {
LOG(SessionState, "WebBackForwardList entry at index %i does not have a valid original URL", (int)i);
return false;
}
CFDataRef backForwardData = (CFDataRef)CFDictionaryGetValue(entryDictionary, SessionHistoryEntryDataKey());
if (!backForwardData || CFGetTypeID(backForwardData) != CFDataGetTypeID()) {
LOG(SessionState, "WebBackForwardList entry at index %i does not have back/forward data", (int)i);
return false;
}
newEntries.append(WebBackForwardListItem::create(originalURL, entryURL, entryTitle, CFDataGetBytePtr(backForwardData), CFDataGetLength(backForwardData), generateWebBackForwardItemID()));
}
m_current = currentIndex;
m_entries = newEntries;
return true;
}
