1 /*

     2  * Copyright (C) 2010 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 "DatabaseObserver.h"

    33 

    34 #include "AbstractDatabase.h"

    35 #include "Document.h"

    36 #include "ScriptExecutionContext.h"

    37 #include "WebDatabase.h"

    38 #include "WebDatabaseObserver.h"

    39 #include "WebFrameClient.h"

    40 #include "WebFrameImpl.h"

    41 #include "WebSecurityOrigin.h"

    42 #include "WebWorkerImpl.h"

    43 #include "WorkerContext.h"

    44 #include "WorkerThread.h"

    45 

    46 using namespace WebKit;

    47 

    48 namespace WebCore {

    49 

    50 bool DatabaseObserver::canEstablishDatabase(ScriptExecutionContext* scriptExecutionContext, const String& name, const String& displayName, unsigned long estimatedSize)

    51 {

    52     ASSERT(scriptExecutionContext->isContextThread());

    53     ASSERT(scriptExecutionContext->isDocument() || scriptExecutionContext->isWorkerContext());

    54     if (scriptExecutionContext->isDocument()) {

    55         Document* document = static_cast<Document*>(scriptExecutionContext);

    56         WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());

    57         return webFrame->client()->allowDatabase(webFrame, name, displayName, estimatedSize);

    58     } else {

    59         WorkerContext* workerContext = static_cast<WorkerContext*>(scriptExecutionContext);

    60         WorkerLoaderProxy* workerLoaderProxy = &workerContext->thread()->workerLoaderProxy();

    61         WebWorkerBase* webWorker = static_cast<WebWorkerBase*>(workerLoaderProxy);

    62         return webWorker->allowDatabase(0, name, displayName, estimatedSize);

    63     }

    64 

    65     return true;

    66 }

    67 

    68 void DatabaseObserver::databaseOpened(AbstractDatabase* database)

    69 {

    70     ASSERT(database->scriptExecutionContext()->isContextThread());

    71     WebDatabase::observer()->databaseOpened(WebDatabase(database));

    72 }

    73 

    74 void DatabaseObserver::databaseModified(AbstractDatabase* database)

    75 {

    76     ASSERT(database->scriptExecutionContext()->isContextThread());

    77     WebDatabase::observer()->databaseModified(WebDatabase(database));

    78 }

    79 

    80 void DatabaseObserver::databaseClosed(AbstractDatabase* database)

    81 {

    82     ASSERT(database->scriptExecutionContext()->isContextThread());

    83     WebDatabase::observer()->databaseClosed(WebDatabase(database));

    84 }

    85 

    86 } // namespace WebCore