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 #if ENABLE(DATABASE)
35
36 #include "AbstractDatabase.h"
37 #include "Document.h"
38 #include "ScriptExecutionContext.h"
39 #include "WebDatabase.h"
40 #include "WebDatabaseObserver.h"
41 #include "WebFrameClient.h"
42 #include "WebFrameImpl.h"
43 #include "WebSecurityOrigin.h"
44 #include "WebWorkerImpl.h"
45 #include "WorkerContext.h"
46 #include "WorkerThread.h"
47
48 using namespace WebKit;
49
50 namespace WebCore {
51
canEstablishDatabase(ScriptExecutionContext * scriptExecutionContext,const String & name,const String & displayName,unsigned long estimatedSize)52 bool DatabaseObserver::canEstablishDatabase(ScriptExecutionContext* scriptExecutionContext, const String& name, const String& displayName, unsigned long estimatedSize)
53 {
54 ASSERT(scriptExecutionContext->isContextThread());
55 ASSERT(scriptExecutionContext->isDocument() || scriptExecutionContext->isWorkerContext());
56 if (scriptExecutionContext->isDocument()) {
57 Document* document = static_cast<Document*>(scriptExecutionContext);
58 WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
59 return webFrame->client()->allowDatabase(webFrame, name, displayName, estimatedSize);
60 } else {
61 WorkerContext* workerContext = static_cast<WorkerContext*>(scriptExecutionContext);
62 WorkerLoaderProxy* workerLoaderProxy = &workerContext->thread()->workerLoaderProxy();
63 WebWorkerBase* webWorker = static_cast<WebWorkerBase*>(workerLoaderProxy);
64 return webWorker->allowDatabase(0, name, displayName, estimatedSize);
65 }
66
67 return true;
68 }
69
databaseOpened(AbstractDatabase * database)70 void DatabaseObserver::databaseOpened(AbstractDatabase* database)
71 {
72 ASSERT(database->scriptExecutionContext()->isContextThread());
73 WebDatabase::observer()->databaseOpened(WebDatabase(database));
74 }
75
databaseModified(AbstractDatabase * database)76 void DatabaseObserver::databaseModified(AbstractDatabase* database)
77 {
78 ASSERT(database->scriptExecutionContext()->isContextThread());
79 WebDatabase::observer()->databaseModified(WebDatabase(database));
80 }
81
databaseClosed(AbstractDatabase * database)82 void DatabaseObserver::databaseClosed(AbstractDatabase* database)
83 {
84 ASSERT(database->scriptExecutionContext()->isContextThread());
85 WebDatabase::observer()->databaseClosed(WebDatabase(database));
86 }
87
88 } // namespace WebCore
89
90 #endif // ENABLE(DATABASE)
91