1 /*
2 * Copyright (C) 2008 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "StorageEventDispatcher.h"
28
29 #if ENABLE(DOM_STORAGE)
30
31 #include "DOMWindow.h"
32 #include "EventNames.h"
33 #include "Frame.h"
34 #include "Page.h"
35 #include "PageGroup.h"
36 #include "SecurityOrigin.h"
37 #include "StorageEvent.h"
38
39 namespace WebCore {
40
dispatch(const String & key,const String & oldValue,const String & newValue,StorageType storageType,SecurityOrigin * securityOrigin,Frame * sourceFrame)41 void StorageEventDispatcher::dispatch(const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin, Frame* sourceFrame)
42 {
43 Page* page = sourceFrame->page();
44 if (!page)
45 return;
46
47 // 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
48 // of any given page in the group or mutate the page group itself.
49 Vector<RefPtr<Frame> > frames;
50 if (storageType == SessionStorage) {
51 // Send events only to our page.
52 for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
53 if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin))
54 frames.append(frame);
55 }
56
57 for (unsigned i = 0; i < frames.size(); ++i) {
58 ExceptionCode ec = 0;
59 Storage* storage = frames[i]->domWindow()->sessionStorage(ec);
60 if (!ec)
61 frames[i]->document()->enqueueWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage));
62 }
63 } else {
64 // Send events to every page.
65 const HashSet<Page*>& pages = page->group().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 (sourceFrame != frame && 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()->enqueueWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage));
79 }
80 }
81 }
82
83 }
84
85 #endif // ENABLE(DOM_STORAGE)
86