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 "StorageEventDispatcherImpl.h"
33
34 #if ENABLE(DOM_STORAGE)
35
36 #include "DOMWindow.h"
37 #include "EventNames.h"
38 #include "Frame.h"
39 #include "KURL.h"
40 #include "Page.h"
41 #include "PageGroup.h"
42 #include "SecurityOrigin.h"
43 #include "StorageEvent.h"
44
45 namespace WebCore {
46
StorageEventDispatcherImpl(const String & groupName)47 StorageEventDispatcherImpl::StorageEventDispatcherImpl(const String& groupName)
48 : m_pageGroup(PageGroup::pageGroup(groupName))
49 {
50 ASSERT(m_pageGroup);
51 }
52
dispatchStorageEvent(const String & key,const String & oldValue,const String & newValue,SecurityOrigin * securityOrigin,const KURL & url,StorageType storageType)53 void StorageEventDispatcherImpl::dispatchStorageEvent(const String& key, const String& oldValue,
54 const String& newValue, SecurityOrigin* securityOrigin,
55 const KURL& url, StorageType storageType)
56 {
57 // FIXME: Implement
58 if (storageType == SessionStorage)
59 return;
60
61 // We need to copy all relevant frames from every page to a vector since sending the event to one frame might mutate the frame tree
62 // of any given page in the group or mutate the page group itself.
63 Vector<RefPtr<Frame> > frames;
64
65 const HashSet<Page*>& pages = m_pageGroup->pages();
66 HashSet<Page*>::const_iterator end = pages.end();
67 for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {
68 for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
69 if (frame->document()->securityOrigin()->equal(securityOrigin))
70 frames.append(frame);
71 }
72 }
73
74 for (unsigned i = 0; i < frames.size(); ++i) {
75 ExceptionCode ec = 0;
76 Storage* storage = frames[i]->domWindow()->localStorage(ec);
77 if (!ec)
78 frames[i]->document()->dispatchWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, url, storage));
79 }
80 }
81
82 } // namespace WebCore
83
84 #endif // ENABLE(DOM_STORAGE)
85