void HistoryController::updateForReload()
{
#if !LOG_DISABLED
if (m_frame->loader()->documentLoader())
LOG(History, "WebCoreHistory: Updating History for reload in frame %s", m_frame->loader()->documentLoader()->title().utf8().data());
#endif
if (m_currentItem) {
pageCache()->remove(m_currentItem.get());
if (m_frame->loader()->loadType() == FrameLoadTypeReload || m_frame->loader()->loadType() == FrameLoadTypeReloadFromOrigin)
saveScrollPositionAndViewStateToItem(m_currentItem.get());
// Sometimes loading a page again leads to a different result because of cookies. Bugzilla 4072
if (m_frame->loader()->documentLoader()->unreachableURL().isEmpty())
m_currentItem->setURL(m_frame->loader()->documentLoader()->requestURL());
}
}
void WebProcess::platformSetCacheModel(CacheModel cacheModel)
{
#if USE(CFNETWORK)
RetainPtr<CFStringRef> cfurlCacheDirectory;
if (CFURLStorageSessionRef defaultStorageSession = ResourceHandle::defaultStorageSession())
cfurlCacheDirectory.adoptCF(wkCopyFoundationCacheDirectory(defaultStorageSession));
else
cfurlCacheDirectory.adoptCF(wkCopyFoundationCacheDirectory(0));
if (!cfurlCacheDirectory)
cfurlCacheDirectory = WebCore::localUserSpecificStorageDirectory().createCFString();
// As a fudge factor, use 1000 instead of 1024, in case the reported byte
// count doesn't align exactly to a megabyte boundary.
uint64_t memSize = memorySize() / 1024 / 1000;
uint64_t diskFreeSize = volumeFreeSize(cfurlCacheDirectory.get()) / 1024 / 1000;
unsigned cacheTotalCapacity = 0;
unsigned cacheMinDeadCapacity = 0;
unsigned cacheMaxDeadCapacity = 0;
double deadDecodedDataDeletionInterval = 0;
unsigned pageCacheCapacity = 0;
unsigned long urlCacheMemoryCapacity = 0;
unsigned long urlCacheDiskCapacity = 0;
calculateCacheSizes(cacheModel, memSize, diskFreeSize,
cacheTotalCapacity, cacheMinDeadCapacity, cacheMaxDeadCapacity, deadDecodedDataDeletionInterval,
pageCacheCapacity, urlCacheMemoryCapacity, urlCacheDiskCapacity);
memoryCache()->setCapacities(cacheMinDeadCapacity, cacheMaxDeadCapacity, cacheTotalCapacity);
memoryCache()->setDeadDecodedDataDeletionInterval(deadDecodedDataDeletionInterval);
pageCache()->setCapacity(pageCacheCapacity);
RetainPtr<CFURLCacheRef> cfurlCache;
if (CFURLStorageSessionRef defaultStorageSession = ResourceHandle::defaultStorageSession())
cfurlCache.adoptCF(wkCopyURLCache(defaultStorageSession));
else
cfurlCache.adoptCF(CFURLCacheCopySharedURLCache());
CFURLCacheSetMemoryCapacity(cfurlCache.get(), urlCacheMemoryCapacity);
CFURLCacheSetDiskCapacity(cfurlCache.get(), max<unsigned long>(urlCacheDiskCapacity, CFURLCacheDiskCapacity(cfurlCache.get()))); // Don't shrink a big disk cache, since that would cause churn.
#endif
}
void BackForwardList::setCapacity(int size)
{
while (size < (int)m_entries.size()) {
RefPtr<HistoryItem> item = m_entries.last();
m_entries.removeLast();
m_entryHash.remove(item);
pageCache()->remove(item.get());
}
if (!size)
m_current = NoCurrentItemIndex;
#ifdef ANDROID_HISTORY_CLIENT
else if (m_current > m_entries.size() - 1) {
m_current = m_entries.size() - 1;
m_page->mainFrame()->loader()->client()->dispatchDidChangeHistoryIndex(this);
}
#else
else if (m_current > m_entries.size() - 1)
m_current = m_entries.size() - 1;
#endif
m_capacity = size;
}
void PageGroup::removeAllVisitedLinks()
{
Page::removeAllVisitedLinks();
pageCache()->markPagesForVistedLinkStyleRecalc();
}
void HistoryItem::setURL(const KURL& url)
{
pageCache()->remove(this);
setURLString(url.string());
clearDocumentState();
}
void PageGroup::captionPreferencesChanged()
{
for (auto it = m_pages.begin(), end = m_pages.end(); it != end; ++it)
(*it)->captionPreferencesChanged();
pageCache()->markPagesForCaptionPreferencesChanged();
}
CachedFrame::CachedFrame(Frame& frame)
: CachedFrameBase(frame)
{
#ifndef NDEBUG
cachedFrameCounter.increment();
#endif
ASSERT(m_document);
ASSERT(m_documentLoader);
ASSERT(m_view);
if (frame.page()->focusController().focusedFrame() == &frame)
frame.page()->focusController().setFocusedFrame(&frame.mainFrame());
// Custom scrollbar renderers will get reattached when the document comes out of the page cache
m_view->detachCustomScrollbars();
m_document->setInPageCache(true);
frame.loader().stopLoading(UnloadEventPolicyUnloadAndPageHide);
// Create the CachedFrames for all Frames in the FrameTree.
for (Frame* child = frame.tree().firstChild(); child; child = child->tree().nextSibling())
m_childFrames.append(std::make_unique<CachedFrame>(*child));
// Active DOM objects must be suspended before we cache the frame script data,
// but after we've fired the pagehide event, in case that creates more objects.
// Suspending must also happen after we've recursed over child frames, in case
// those create more objects.
m_document->documentWillSuspendForPageCache();
m_document->suspendScriptedAnimationControllerCallbacks();
m_document->suspendActiveDOMObjects(ActiveDOMObject::DocumentWillBecomeInactive);
m_cachedFrameScriptData = std::make_unique<ScriptCachedFrameData>(frame);
m_document->domWindow()->suspendForPageCache();
frame.loader().client().savePlatformDataToCachedFrame(this);
#if USE(ACCELERATED_COMPOSITING)
if (m_isComposited && pageCache()->shouldClearBackingStores())
frame.view()->clearBackingStores();
#endif
// documentWillSuspendForPageCache() can set up a layout timer on the FrameView, so clear timers after that.
frame.clearTimers();
// Deconstruct the FrameTree, to restore it later.
// We do this for two reasons:
// 1 - We reuse the main frame, so when it navigates to a new page load it needs to start with a blank FrameTree.
// 2 - It's much easier to destroy a CachedFrame while it resides in the PageCache if it is disconnected from its parent.
for (unsigned i = 0; i < m_childFrames.size(); ++i)
frame.tree().removeChild(&m_childFrames[i]->view()->frame());
if (!m_isMainFrame)
frame.page()->decrementSubframeCount();
frame.loader().client().didSaveToPageCache();
#ifndef NDEBUG
if (m_isMainFrame)
LOG(PageCache, "Finished creating CachedFrame for main frame url '%s' and DocumentLoader %p\n", m_url.string().utf8().data(), m_documentLoader.get());
else
LOG(PageCache, "Finished creating CachedFrame for child frame with url '%s' and DocumentLoader %p\n", m_url.string().utf8().data(), m_documentLoader.get());
#endif
#if PLATFORM(IOS)
if (m_isMainFrame) {
if (DOMWindow* domWindow = m_document->domWindow()) {
if (domWindow->scrollEventListenerCount() && frame.page())
frame.page()->chrome().client().setNeedsScrollNotifications(&frame, false);
}
}
#endif
}
void PageGroup::captionPreferencesChanged()
{
for (HashSet<Page*>::iterator i = m_pages.begin(); i != m_pages.end(); ++i)
(*i)->captionPreferencesChanged();
pageCache()->markPagesForCaptionPreferencesChanged();
}
void WebProcess::releasePageCache()
{
int savedPageCacheCapacity = pageCache()->capacity();
pageCache()->setCapacity(0);
pageCache()->setCapacity(savedPageCacheCapacity);
}
CachedFrame::CachedFrame(Frame* frame)
: CachedFrameBase(frame)
{
#ifndef NDEBUG
cachedFrameCounter().increment();
#endif
ASSERT(m_document);
ASSERT(m_documentLoader);
ASSERT(m_view);
if (frame->page()->focusController()->focusedFrame() == frame)
frame->page()->focusController()->setFocusedFrame(frame->page()->mainFrame());
// Custom scrollbar renderers will get reattached when the document comes out of the page cache
m_view->detachCustomScrollbars();
m_document->documentWillBecomeInactive();
frame->clearTimers();
m_document->setInPageCache(true);
frame->loader()->stopLoading(UnloadEventPolicyUnloadAndPageHide);
// Create the CachedFrames for all Frames in the FrameTree.
for (Frame* child = frame->tree()->firstChild(); child; child = child->tree()->nextSibling())
m_childFrames.append(CachedFrame::create(child));
// Active DOM objects must be suspended before we cache the frame script data,
// but after we've fired the pagehide event, in case that creates more objects.
// Suspending must also happen after we've recursed over child frames, in case
// those create more objects.
// FIXME: It's still possible to have objects created after suspending in some cases, see http://webkit.org/b/53733 for more details.
m_document->suspendScriptedAnimationControllerCallbacks();
m_document->suspendActiveDOMObjects(ActiveDOMObject::DocumentWillBecomeInactive);
m_cachedFrameScriptData = adoptPtr(new ScriptCachedFrameData(frame));
frame->loader()->client()->savePlatformDataToCachedFrame(this);
#if USE(ACCELERATED_COMPOSITING)
if (m_isComposited && pageCache()->shouldClearBackingStores())
frame->view()->clearBackingStores();
#endif
// Deconstruct the FrameTree, to restore it later.
// We do this for two reasons:
// 1 - We reuse the main frame, so when it navigates to a new page load it needs to start with a blank FrameTree.
// 2 - It's much easier to destroy a CachedFrame while it resides in the PageCache if it is disconnected from its parent.
for (unsigned i = 0; i < m_childFrames.size(); ++i)
frame->tree()->removeChild(m_childFrames[i]->view()->frame());
if (!m_isMainFrame)
frame->page()->decrementFrameCount();
frame->loader()->client()->didSaveToPageCache();
#ifndef NDEBUG
if (m_isMainFrame)
LOG(PageCache, "Finished creating CachedFrame for main frame url '%s' and DocumentLoader %p\n", m_url.string().utf8().data(), m_documentLoader.get());
else
LOG(PageCache, "Finished creating CachedFrame for child frame with url '%s' and DocumentLoader %p\n", m_url.string().utf8().data(), m_documentLoader.get());
#endif
}
inline void PageGroup::addVisitedLink(LinkHash hash)
{
ASSERT(shouldTrackVisitedLinks);
Page::visitedStateChanged(this, hash);
pageCache()->markPagesForVistedLinkStyleRecalc();
}
