Add the WebKit API for DOM Storage. This is used to re-enter WebKit. A late...

webkit/api/src/WebStorageAreaImpl.cpp

+/*
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebStorageAreaImpl.h"
+
+#if ENABLE(DOM_STORAGE)
+
+#include "ExceptionCode.h"
+#include "WebString.h"
+
+namespace WebKit {
+
+WebStorageAreaImpl::WebStorageAreaImpl(PassRefPtr<WebCore::StorageArea> storageArea)
+    : m_storageArea(storageArea)
+{
+}
+
+WebStorageAreaImpl::~WebStorageAreaImpl()
+{
+}
+
+void WebStorageAreaImpl::lock(bool& invalidateCache, size_t& bytesLeftInQuota)
+{
+    // FIXME: Enable locking.  http://crbug.com/16877
+    invalidateCache = false;
+    // FIXME: Enable quota support.  http://crbug.com/16876
+    bytesLeftInQuota = 0;
+}
+
+void WebStorageAreaImpl::unlock()
+{
+    // FIXME: Enable locking.  http://crbug.com/16877
+}
+
+unsigned WebStorageAreaImpl::length()
+{
+    return m_storageArea->length();
+}
+
+WebString WebStorageAreaImpl::key(unsigned index, bool& keyException)
+{
+    int exceptionCode = 0;
+    WebString value = m_storageArea->key(index, exceptionCode);
+    if (exceptionCode != 0) {
+        ASSERT(exceptionCode == WebCore::INDEX_SIZE_ERR);
+        keyException = true;
+    } else {
+        keyException = false;
+    }
+    return value;
+}
+
+WebString WebStorageAreaImpl::getItem(const WebString& key)
+{
+    return m_storageArea->getItem(key);
+}
+
+void WebStorageAreaImpl::setItem(const WebString& key, const WebString& value, bool& quotaException)
+{
+    int exceptionCode = 0;
+    // FIXME: Can we do any better than just passing 0 for the frame?
+    m_storageArea->setItem(key, value, exceptionCode, 0);
+    if (exceptionCode != 0) {
+        ASSERT(exceptionCode == WebCore::QUOTA_EXCEEDED_ERR);
+        quotaException = true;
+    } else {
+        quotaException = false;
+    }
+}
+
+void WebStorageAreaImpl::removeItem(const WebString& key)
+{
+    // FIXME: Can we do any better than just passing 0 for the frame?
+    m_storageArea->removeItem(key, 0);
+}
+
+void WebStorageAreaImpl::clear()
+{
+    // FIXME: Can we do any better than just passing 0 for the frame?
+    m_storageArea->clear(0);
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(DOM_STORAGE)