StorageAreaProxy.cpp [plain text]
#include "config.h"
#include "StorageAreaProxy.h"
#if ENABLE(DOM_STORAGE)
#include "DOMWindow.h"
#include "Document.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "Frame.h"
#include "Page.h"
#include "PageGroup.h"
#include "SecurityOrigin.h"
#include "StorageAreaImpl.h"
#include "StorageEvent.h"
#include "WebFrameImpl.h"
#include "WebStorageArea.h"
#include "WebString.h"
#include "WebURL.h"
namespace WebCore {
StorageAreaProxy::StorageAreaProxy(WebKit::WebStorageArea* storageArea, StorageType storageType)
: m_storageArea(storageArea)
, m_storageType(storageType)
{
}
StorageAreaProxy::~StorageAreaProxy()
{
}
unsigned StorageAreaProxy::length() const
{
return m_storageArea->length();
}
String StorageAreaProxy::key(unsigned index) const
{
return m_storageArea->key(index);
}
String StorageAreaProxy::getItem(const String& key) const
{
return m_storageArea->getItem(key);
}
String StorageAreaProxy::setItem(const String& key, const String& value, ExceptionCode& ec, Frame* frame)
{
WebKit::WebStorageArea::Result result = WebKit::WebStorageArea::ResultOK;
WebKit::WebString oldValue;
WebKit::WebFrame* webFrame = WebKit::WebFrameImpl::fromFrame(frame);
m_storageArea->setItem(key, value, frame->document()->url(), result, oldValue, webFrame);
ec = (result == WebKit::WebStorageArea::ResultOK) ? 0 : QUOTA_EXCEEDED_ERR;
String oldValueString = oldValue;
if (oldValueString != value && result == WebKit::WebStorageArea::ResultOK)
storageEvent(key, oldValue, value, m_storageType, frame->document()->securityOrigin(), frame);
return oldValue;
}
String StorageAreaProxy::removeItem(const String& key, Frame* frame)
{
WebKit::WebString oldValue;
m_storageArea->removeItem(key, frame->document()->url(), oldValue);
if (!oldValue.isNull())
storageEvent(key, oldValue, String(), m_storageType, frame->document()->securityOrigin(), frame);
return oldValue;
}
bool StorageAreaProxy::clear(Frame* frame)
{
bool clearedSomething;
m_storageArea->clear(frame->document()->url(), clearedSomething);
if (clearedSomething)
storageEvent(String(), String(), String(), m_storageType, frame->document()->securityOrigin(), frame);
return clearedSomething;
}
bool StorageAreaProxy::contains(const String& key) const
{
return !getItem(key).isNull();
}
void StorageAreaProxy::storageEvent(const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin, Frame* sourceFrame)
{
Page* page = sourceFrame->page();
if (!page)
return;
Vector<RefPtr<Frame> > frames;
if (storageType == SessionStorage) {
for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin))
frames.append(frame);
}
for (unsigned i = 0; i < frames.size(); ++i) {
ExceptionCode ec = 0;
Storage* storage = frames[i]->domWindow()->sessionStorage(ec);
if (!ec)
frames[i]->document()->enqueueEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage));
}
} else {
const HashSet<Page*>& pages = page->group().pages();
HashSet<Page*>::const_iterator end = pages.end();
for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {
for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin))
frames.append(frame);
}
}
for (unsigned i = 0; i < frames.size(); ++i) {
ExceptionCode ec = 0;
Storage* storage = frames[i]->domWindow()->localStorage(ec);
if (!ec)
frames[i]->document()->enqueueEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage));
}
}
}
}
#endif // ENABLE(DOM_STORAGE)