Integrate the new DomStorage backend into DRT and test_shell.

webkit/tools/test_shell/simple_dom_storage_system.cc

+// 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/WebStorageArea.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.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::WebStorageNamespace;
+using WebKit::WebStorageArea;
+using WebKit::WebString;
+using WebKit::WebURL;
+
+class SimpleDomStorageSystem::NamespaceImpl : public WebStorageNamespace {
+ public:
+  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())

[benm (inactive), 2012/02/23 19:17:15]

!parent.get()

[michaeln, 2012/02/28 01:14:54]

Done.

+      return NULL;
+    return parent_.get()->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())

[benm (inactive), 2012/02/23 19:17:15]

!parent.get()

[michaeln, 2012/02/28 01:14:54]

Done.

+      return NULL;
+    return parent_.get()->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 || !Context())
+    return;
+  Context()->DeleteSessionNamespace(namespace_id_);
+}
+
+WebStorageArea* SimpleDomStorageSystem::NamespaceImpl::createStorageArea(
+    const WebString& origin) {
+  return new AreaImpl(parent_, namespace_id_, GURL());

[benm (inactive), 2012/02/23 19:17:15]

Should this be a GURL created from the origin parameter?

[michaeln, 2012/02/28 01:14:54]

Done.

+}
+
+WebStorageNamespace* SimpleDomStorageSystem::NamespaceImpl::copy() {
+  DCHECK_NE(dom_storage::kLocalStorageNamespaceId, namespace_id_);
+  int new_id = -1;

[benm (inactive), 2012/02/23 19:17:15]

how about making a kInvalidNamespaceId in dom_storage_types.h and using it here?

[michaeln, 2012/02/28 01:14:54]

Done in a constant in this file

+  if (Context()) {
+    new_id = Context()->AllocateSessionId();
+    Context()->CloneSessionNamespace(namespace_id_, new_id);
+  }
+  return new NamespaceImpl(parent_, new_id);

[benm (inactive), 2012/02/23 19:17:15]

Is it ok for -1 to end up as the id here?

[michaeln, 2012/02/28 01:14:54]

Yes, should be harmless.

+}
+
+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 WebString();
+}
+
+WebString SimpleDomStorageSystem::AreaImpl::getItem(const WebString& key) {
+  if (Host())
+    return Host()->GetAreaItem(connection_id_, key);
+  return WebString();
+}
+
+void SimpleDomStorageSystem::AreaImpl::setItem(
+    const WebString& key, const WebString& newValue,
+    const WebURL&, Result& result, WebString& oldValue) {
+  // host_->SetAreaItem(connection_id_, key, ...);
+  result = ResultBlockedByQuota;
+}
+
+void SimpleDomStorageSystem::AreaImpl::removeItem(
+    const WebString& key, const WebURL& url, WebString& oldValue) {
+  // host_->RemoveAreaItem(connection_id_, key, ...);
+}
+
+void SimpleDomStorageSystem::AreaImpl::clear(
+    const WebURL& page_url, bool& somethingCleared) {
+  // somethingCleared = host_->SetAreaItem(connection_id_, page_url);
+  somethingCleared = false;
+}
+
+// SimpleDomStorageSystem -----------------------------
+
+SimpleDomStorageSystem* SimpleDomStorageSystem::g_instance_;
+
+SimpleDomStorageSystem::SimpleDomStorageSystem()
+    : weak_factory_(this),
+      context_(new DomStorageContext(FilePath(), NULL, NULL)),

[benm (inactive), 2012/02/23 19:17:15]

I guess the params here still need filling out.

[michaeln, 2012/02/25 19:20:32]

I think they may not need any more filling out than this (at least for now). We
can run test_shell/DRT without putting anything on disk (so much faster), and in
a completely single threaded mode (making the Simple class much simpler).

Some aspects of things won't get excersized in this test environment, but much
will. In particular the v8 bindings + webkit api + dom_storage logic minus task
posting and backing db stuff. This harness doesn't have to test "everything",
and actually can't since there's no IPC in the loop here. Other tests (unit,
automation, ui, etc) can cover parts that are missing coverage here.

When a renderer-side caching layer is added, definitely will want to revisit.

+      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);
+}