1 /*
2 * Copyright (C) 2012 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 "modules/quota/DOMWindowQuota.h"
33
34 #include "core/dom/Document.h"
35 #include "core/frame/LocalDOMWindow.h"
36 #include "core/frame/LocalFrame.h"
37 #include "modules/quota/DeprecatedStorageInfo.h"
38 #include "wtf/PassRefPtr.h"
39
40 namespace WebCore {
41
DOMWindowQuota(LocalDOMWindow & window)42 DOMWindowQuota::DOMWindowQuota(LocalDOMWindow& window)
43 : DOMWindowProperty(window.frame())
44 {
45 }
46
~DOMWindowQuota()47 DOMWindowQuota::~DOMWindowQuota()
48 {
49 }
50
supplementName()51 const char* DOMWindowQuota::supplementName()
52 {
53 return "DOMWindowQuota";
54 }
55
56 // static
from(LocalDOMWindow & window)57 DOMWindowQuota& DOMWindowQuota::from(LocalDOMWindow& window)
58 {
59 DOMWindowQuota* supplement = static_cast<DOMWindowQuota*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName()));
60 if (!supplement) {
61 supplement = new DOMWindowQuota(window);
62 provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement));
63 }
64 return *supplement;
65 }
66
67 // static
webkitStorageInfo(LocalDOMWindow & window)68 DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo(LocalDOMWindow& window)
69 {
70 return DOMWindowQuota::from(window).webkitStorageInfo();
71 }
72
webkitStorageInfo() const73 DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo() const
74 {
75 if (!m_storageInfo && frame())
76 m_storageInfo = DeprecatedStorageInfo::create();
77 return m_storageInfo.get();
78 }
79
trace(Visitor * visitor)80 void DOMWindowQuota::trace(Visitor* visitor)
81 {
82 visitor->trace(m_storageInfo);
83 WillBeHeapSupplement<LocalDOMWindow>::trace(visitor);
84 }
85
86 } // namespace WebCore
87