#include "config.h"
#include "StorageArea.h"
#include "CString.h"
#include "ExceptionCode.h"
#include "SecurityOrigin.h"
#include "StorageMap.h"
namespace WebCore {
StorageArea::StorageArea(SecurityOrigin* origin)
: m_securityOrigin(origin)
, m_storageMap(StorageMap::create())
{
}
StorageArea::StorageArea(SecurityOrigin* origin, StorageArea* area)
: m_securityOrigin(origin)
, m_storageMap(area->m_storageMap)
{
}
StorageArea::~StorageArea()
{
}
unsigned StorageArea::internalLength() const
{
return m_storageMap->length();
}
String StorageArea::internalKey(unsigned index, ExceptionCode& ec) const
{
String key;
if (!m_storageMap->key(index, key)) {
ec = INDEX_SIZE_ERR;
return String();
}
return key;
}
String StorageArea::internalGetItem(const String& key) const
{
return m_storageMap->getItem(key);
}
void StorageArea::internalSetItem(const String& key, const String& value, ExceptionCode& ec, Frame* frame)
{
ASSERT(!value.isNull());
String oldValue = m_storageMap->getItem(key);
unsigned long long usage = m_storageMap->totalUsage();
if (oldValue != value) {
usage = usage + value.length() * sizeof(UChar) - oldValue.length();
} else {
usage += (key.length() + value.length()) * sizeof(UChar);
}
if (usage > 5 * 1024 * 1024) {
ec = QUOTA_EXCEEDED_ERR;
return;
}
RefPtr<StorageMap> newMap = m_storageMap->setItem(key, value, oldValue);
if (newMap)
m_storageMap = newMap.release();
if (oldValue != value)
itemChanged(key, oldValue, value, frame);
}
void StorageArea::internalRemoveItem(const String& key, Frame* frame)
{
String oldValue;
RefPtr<StorageMap> newMap = m_storageMap->removeItem(key, oldValue);
if (newMap)
m_storageMap = newMap.release();
if (!oldValue.isNull())
itemRemoved(key, oldValue, frame);
}
void StorageArea::internalClear(Frame* frame)
{
m_storageMap = StorageMap::create();
areaCleared(frame);
}
bool StorageArea::internalContains(const String& key) const
{
return m_storageMap->contains(key);
}
void StorageArea::importItem(const String& key, const String& value)
{
m_storageMap->importItem(key, value);
}
}