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 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 frames[i]->document()->enqueueStorageEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), frames[i]->domWindow()->sessionStorage())); 59 } else { 60 // Send events to every page. 61 const HashSet<Page*>& pages = page->group().pages(); 62 HashSet<Page*>::const_iterator end = pages.end(); 63 for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) { 64 for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) { 65 if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin)) 66 frames.append(frame); 67 } 68 } 69 70 for (unsigned i = 0; i < frames.size(); ++i) 71 frames[i]->document()->enqueueStorageEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), frames[i]->domWindow()->localStorage())); 72 } 73 } 74 75 } 76 77 #endif // ENABLE(DOM_STORAGE) 78
