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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "WebStorageAreaImpl.h"
     33 
     34 #if ENABLE(DOM_STORAGE)
     35 
     36 #include "ExceptionCode.h"
     37 
     38 #include "WebString.h"
     39 #include "WebURL.h"
     40 
     41 namespace WebKit {
     42 
     43 const WebURL* WebStorageAreaImpl::storageEventURL = 0;
     44 
     45 WebStorageAreaImpl::WebStorageAreaImpl(PassRefPtr<WebCore::StorageArea> storageArea)
     46     : m_storageArea(storageArea)
     47 {
     48 }
     49 
     50 WebStorageAreaImpl::~WebStorageAreaImpl()
     51 {
     52 }
     53 
     54 unsigned WebStorageAreaImpl::length()
     55 {
     56     return m_storageArea->length();
     57 }
     58 
     59 WebString WebStorageAreaImpl::key(unsigned index)
     60 {
     61     return m_storageArea->key(index);
     62 }
     63 
     64 WebString WebStorageAreaImpl::getItem(const WebString& key)
     65 {
     66     return m_storageArea->getItem(key);
     67 }
     68 
     69 void WebStorageAreaImpl::setItem(const WebString& key, const WebString& value, const WebURL& url, Result& result, WebString& oldValue)
     70 {
     71     int exceptionCode = 0;
     72 
     73     ScopedStorageEventURL scope(url);
     74     oldValue = m_storageArea->setItem(key, value, exceptionCode, 0);
     75 
     76     if (exceptionCode) {
     77         ASSERT(exceptionCode == WebCore::QUOTA_EXCEEDED_ERR);
     78         result = ResultBlockedByQuota;
     79     } else
     80         result = ResultOK;
     81 }
     82 
     83 void WebStorageAreaImpl::removeItem(const WebString& key, const WebURL& url, WebString& oldValue)
     84 {
     85     ScopedStorageEventURL scope(url);
     86     oldValue = m_storageArea->removeItem(key, 0);
     87 }
     88 
     89 void WebStorageAreaImpl::clear(const WebURL& url, bool& somethingCleared)
     90 {
     91     ScopedStorageEventURL scope(url);
     92     somethingCleared = m_storageArea->clear(0);
     93 }
     94 
     95 } // namespace WebKit
     96 
     97 #endif // ENABLE(DOM_STORAGE)
     98