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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/tools/test_shell/simple_dom_storage_system.h"
#include "googleurl/src/gurl.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageArea.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
#include "webkit/database/database_util.h"
#include "webkit/dom_storage/dom_storage_context.h"
#include "webkit/dom_storage/dom_storage_host.h"
#include "webkit/dom_storage/dom_storage_session.h"
using dom_storage::DomStorageContext;
using dom_storage::DomStorageHost;
using dom_storage::DomStorageSession;
using webkit_database::DatabaseUtil;
using WebKit::WebStorageNamespace;
using WebKit::WebStorageArea;
using WebKit::WebString;
using WebKit::WebURL;
namespace {
const int kInvalidNamespaceId = -1;
}
class SimpleDomStorageSystem::NamespaceImpl : public WebStorageNamespace {
public:
explicit NamespaceImpl(const base::WeakPtr<SimpleDomStorageSystem>& parent);
NamespaceImpl(const base::WeakPtr<SimpleDomStorageSystem>& parent,
int session_namespace_id);
virtual ~NamespaceImpl();
virtual WebStorageArea* createStorageArea(const WebString& origin) OVERRIDE;
virtual WebStorageNamespace* copy() OVERRIDE;
virtual void close() OVERRIDE;
private:
DomStorageContext* Context() {
if (!parent_.get())
return NULL;
return parent_->context_.get();
}
base::WeakPtr<SimpleDomStorageSystem> parent_;
int namespace_id_;
};
class SimpleDomStorageSystem::AreaImpl : public WebStorageArea {
public:
AreaImpl(const base::WeakPtr<SimpleDomStorageSystem>& parent,
int namespace_id, const GURL& origin);
virtual ~AreaImpl();
virtual unsigned length() OVERRIDE;
virtual WebString key(unsigned index) OVERRIDE;
virtual WebString getItem(const WebString& key) OVERRIDE;
virtual void setItem(const WebString& key, const WebString& newValue,
const WebURL&, Result&, WebString& oldValue) OVERRIDE;
virtual void removeItem(const WebString& key, const WebURL& url,
WebString& oldValue) OVERRIDE;
virtual void clear(const WebURL& url, bool& somethingCleared) OVERRIDE;
private:
DomStorageHost* Host() {
if (!parent_.get())
return NULL;
return parent_->host_.get();
}
base::WeakPtr<SimpleDomStorageSystem> parent_;
int connection_id_;
};
// NamespaceImpl -----------------------------
SimpleDomStorageSystem::NamespaceImpl::NamespaceImpl(
const base::WeakPtr<SimpleDomStorageSystem>& parent)
: parent_(parent),
namespace_id_(dom_storage::kLocalStorageNamespaceId) {
}
SimpleDomStorageSystem::NamespaceImpl::NamespaceImpl(
const base::WeakPtr<SimpleDomStorageSystem>& parent,
int session_namespace_id)
: parent_(parent),
namespace_id_(session_namespace_id) {
}
SimpleDomStorageSystem::NamespaceImpl::~NamespaceImpl() {
if (namespace_id_ == dom_storage::kLocalStorageNamespaceId ||
namespace_id_ == kInvalidNamespaceId || !Context()) {
return;
}
Context()->DeleteSessionNamespace(namespace_id_);
}
WebStorageArea* SimpleDomStorageSystem::NamespaceImpl::createStorageArea(
const WebString& origin) {
return new AreaImpl(parent_, namespace_id_, GURL(origin));
}
WebStorageNamespace* SimpleDomStorageSystem::NamespaceImpl::copy() {
DCHECK_NE(dom_storage::kLocalStorageNamespaceId, namespace_id_);
int new_id = kInvalidNamespaceId;
if (Context()) {
new_id = Context()->AllocateSessionId();
Context()->CloneSessionNamespace(namespace_id_, new_id);
}
return new NamespaceImpl(parent_, new_id);
}
void SimpleDomStorageSystem::NamespaceImpl::close() {
}
// AreaImpl -----------------------------
SimpleDomStorageSystem::AreaImpl::AreaImpl(
const base::WeakPtr<SimpleDomStorageSystem>& parent,
int namespace_id, const GURL& origin)
: parent_(parent),
connection_id_(0) {
if (Host())
connection_id_ = Host()->OpenStorageArea(namespace_id, origin);
}
SimpleDomStorageSystem::AreaImpl::~AreaImpl() {
if (Host())
Host()->CloseStorageArea(connection_id_);
}
unsigned SimpleDomStorageSystem::AreaImpl::length() {
if (Host())
return Host()->GetAreaLength(connection_id_);
return 0;
}
WebString SimpleDomStorageSystem::AreaImpl::key(unsigned index) {
if (Host())
return Host()->GetAreaKey(connection_id_, index);
return NullableString16(true);
}
WebString SimpleDomStorageSystem::AreaImpl::getItem(const WebString& key) {
if (Host())
return Host()->GetAreaItem(connection_id_, key);
return NullableString16(true);
}
void SimpleDomStorageSystem::AreaImpl::setItem(
const WebString& key, const WebString& newValue,
const WebURL& pageUrl, Result& result, WebString& oldValue) {
result = ResultBlockedByQuota;
oldValue = NullableString16(true);
if (!Host())
return;
NullableString16 old_value;
if (!Host()->SetAreaItem(connection_id_, key, newValue, pageUrl,
&old_value))
return;
result = ResultOK;
oldValue = old_value;
}
void SimpleDomStorageSystem::AreaImpl::removeItem(
const WebString& key, const WebURL& pageUrl, WebString& oldValue) {
oldValue = NullableString16(true);
if (!Host())
return;
string16 old_value;
if (!Host()->RemoveAreaItem(connection_id_, key, pageUrl, &old_value))
return;
oldValue = old_value;
}
void SimpleDomStorageSystem::AreaImpl::clear(
const WebURL& pageUrl, bool& somethingCleared) {
if (Host())
somethingCleared = Host()->ClearArea(connection_id_, pageUrl);
else
somethingCleared = false;
}
// SimpleDomStorageSystem -----------------------------
SimpleDomStorageSystem* SimpleDomStorageSystem::g_instance_;
SimpleDomStorageSystem::SimpleDomStorageSystem()
: weak_factory_(this),
context_(new DomStorageContext(FilePath(), NULL, NULL)),
host_(new DomStorageHost(context_)) {
DCHECK(!g_instance_);
g_instance_ = this;
}
SimpleDomStorageSystem::~SimpleDomStorageSystem() {
g_instance_ = NULL;
host_.reset();
}
WebStorageNamespace* SimpleDomStorageSystem::CreateLocalStorageNamespace() {
return new NamespaceImpl(weak_factory_.GetWeakPtr());
}
WebStorageNamespace* SimpleDomStorageSystem::CreateSessionStorageNamespace() {
int id = context_->AllocateSessionId();
context_->CreateSessionNamespace(id);
return new NamespaceImpl(weak_factory_.GetWeakPtr(), id);
}
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