content/renderer/dom_storage/webstoragenamespace_impl.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
   6
   7 #include "base/logging.h"
   8 #include "content/common/dom_storage/dom_storage_types.h"
   9 #include "content/renderer/dom_storage/webstoragearea_impl.h"
  10 #include "third_party/WebKit/public/platform/WebString.h"
  11 #include "url/gurl.h"
  12
  13 using blink::WebStorageArea;
  14 using blink::WebStorageNamespace;
  15 using blink::WebString;
  16
  17 namespace content {
  18
  19 WebStorageNamespaceImpl::WebStorageNamespaceImpl()
  20     : namespace_id_(kLocalStorageNamespaceId) {
  21 }
  22
  23 WebStorageNamespaceImpl::WebStorageNamespaceImpl(
  24     int64 namespace_id)
  25     : namespace_id_(namespace_id) {
  26   DCHECK_NE(kInvalidSessionStorageNamespaceId, namespace_id);
  27 }
  28
  29 WebStorageNamespaceImpl::~WebStorageNamespaceImpl() {
  30 }
  31
  32 WebStorageArea* WebStorageNamespaceImpl::createStorageArea(
  33     const WebString& origin) {
  34   return new WebStorageAreaImpl(namespace_id_, GURL(origin));
  35 }
  36
  37 WebStorageNamespace* WebStorageNamespaceImpl::copy() {
  38   // By returning NULL, we're telling WebKit to lazily fetch it the next time
  39   // session storage is used.  In the WebViewClient::createView, we do the
  40   // book-keeping necessary to make it a true copy-on-write despite not doing
  41   // anything here, now.
  42   return NULL;
  43 }
  44
  45 bool WebStorageNamespaceImpl::isSameNamespace(
  46     const WebStorageNamespace& other) const {
  47   const WebStorageNamespaceImpl* other_impl =
  48       static_cast<const WebStorageNamespaceImpl*>(&other);
  49   return namespace_id_ == other_impl->namespace_id_;
  50 }
  51
  52 }  // namespace content