CachedFrame::CachedFrame(Frame* frame)
: m_document(frame->document())
, m_documentLoader(frame->loader()->documentLoader())
, m_view(frame->view())
, m_mousePressNode(frame->eventHandler()->mousePressNode())
, m_url(frame->loader()->url())
{
#ifndef NDEBUG
cachedFrameCounter().increment();
#endif
ASSERT(m_document);
// Active DOM objects must be suspended before we cached the frame script data
m_document->suspendActiveDOMObjects();
m_cachedFrameScriptData.set(new ScriptCachedFrameData(frame));
m_document->documentWillBecomeInactive();
frame->clearTimers();
m_document->setInPageCache(true);
frame->loader()->client()->savePlatformDataToCachedFrame(this);
for (Frame* child = frame->tree()->firstChild(); child; child = child->tree()->nextSibling())
m_childFrames.append(CachedFrame::create(child));
LOG(PageCache, "Finished creating CachedFrame with url %s\n", m_url.string().utf8().data());
}
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);
// 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
#if ENABLE(TOUCH_EVENTS)
if (m_document->hasListenerType(Document::TOUCH_LISTENER))
m_document->page()->chrome()->client()->needTouchEvents(false);
#endif
}
CachedFrameBase::~CachedFrameBase()
{
#ifndef NDEBUG
cachedFrameCounter().decrement();
#endif
// CachedFrames should always have had destroy() called by their parent CachedPage
ASSERT(!m_document);
}
CachedFrame::~CachedFrame()
{
#ifndef NDEBUG
cachedFrameCounter().decrement();
#endif
clear();
}
CachedFrame::CachedFrame(Frame* frame)
: CachedFrameBase(frame)
{
#ifndef NDEBUG
cachedFrameCounter().increment();
#endif
ASSERT(m_document);
ASSERT(m_documentLoader);
ASSERT(m_view);
// Active DOM objects must be suspended before we cached the frame script data
m_document->suspendActiveDOMObjects();
m_cachedFrameScriptData.set(new ScriptCachedFrameData(frame));
// 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()->client()->savePlatformDataToCachedFrame(this);
// 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));
// 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();
#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 ENABLE(TOUCH_EVENTS)
if (m_document->hasListenerType(Document::TOUCH_LISTENER))
m_document->page()->chrome()->client()->needTouchEvents(false);
#endif
}
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->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.
m_document->documentWillSuspendForPageCache();
m_document->suspendScriptedAnimationControllerCallbacks();
m_document->suspendActiveDOMObjects(ActiveDOMObject::DocumentWillBecomeInactive);
m_cachedFrameScriptData = adoptPtr(new 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
}
