WebCore/storage/SessionStorage.cpp

   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 "SessionStorage.h"
  28
  29 #include "EventNames.h"
  30 #include "Frame.h"
  31 #include "FrameTree.h"
  32 #include "Page.h"
  33 #include "SecurityOrigin.h"
  34 #include "StorageArea.h"
  35 #include "StorageMap.h"
  36
  37 namespace WebCore {
  38
  39 PassRefPtr<SessionStorage> SessionStorage::create(Page* page)
  40 {
  41     return adoptRef(new SessionStorage(page));
  42 }
  43
  44 SessionStorage::SessionStorage(Page* page)
  45     : m_page(page)
  46 {
  47     ASSERT(m_page);
  48 }
  49
  50 PassRefPtr<SessionStorage> SessionStorage::copy(Page* newPage)
  51 {
  52     ASSERT(newPage);
  53     RefPtr<SessionStorage> newSession = SessionStorage::create(newPage);
  54
  55     SessionStorageAreaMap::iterator end = m_storageAreaMap.end();
  56     for (SessionStorageAreaMap::iterator i = m_storageAreaMap.begin(); i != end; ++i) {
  57         RefPtr<SessionStorageArea> areaCopy = i->second->copy(i->first.get(), newPage);
  58         newSession->m_storageAreaMap.set(i->first, areaCopy.release());
  59     }
  60
  61     return newSession.release();
  62 }
  63
  64 PassRefPtr<StorageArea> SessionStorage::storageArea(SecurityOrigin* origin)
  65 {
  66     RefPtr<SessionStorageArea> storageArea;
  67     if (storageArea = m_storageAreaMap.get(origin))
  68         return storageArea.release();
  69
  70     storageArea = SessionStorageArea::create(origin, m_page);
  71     m_storageAreaMap.set(origin, storageArea);
  72     return storageArea.release();
  73 }
  74
  75 }