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      1 /*
      2  * Copyright (C) 2013 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/NavigatorStorageQuota.h"
     33 
     34 #include "core/frame/Navigator.h"
     35 #include "modules/quota/DeprecatedStorageQuota.h"
     36 #include "modules/quota/StorageQuota.h"
     37 
     38 namespace blink {
     39 
     40 NavigatorStorageQuota::NavigatorStorageQuota(LocalFrame* frame)
     41     : DOMWindowProperty(frame)
     42 {
     43 }
     44 
     45 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(NavigatorStorageQuota);
     46 
     47 const char* NavigatorStorageQuota::supplementName()
     48 {
     49     return "NavigatorStorageQuota";
     50 }
     51 
     52 NavigatorStorageQuota& NavigatorStorageQuota::from(Navigator& navigator)
     53 {
     54     NavigatorStorageQuota* supplement = static_cast<NavigatorStorageQuota*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
     55     if (!supplement) {
     56         supplement = new NavigatorStorageQuota(navigator.frame());
     57         provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
     58     }
     59     return *supplement;
     60 }
     61 
     62 StorageQuota* NavigatorStorageQuota::storageQuota(Navigator& navigator)
     63 {
     64     return NavigatorStorageQuota::from(navigator).storageQuota();
     65 }
     66 
     67 DeprecatedStorageQuota* NavigatorStorageQuota::webkitTemporaryStorage(Navigator& navigator)
     68 {
     69     return NavigatorStorageQuota::from(navigator).webkitTemporaryStorage();
     70 }
     71 
     72 DeprecatedStorageQuota* NavigatorStorageQuota::webkitPersistentStorage(Navigator& navigator)
     73 {
     74     return NavigatorStorageQuota::from(navigator).webkitPersistentStorage();
     75 }
     76 
     77 StorageQuota* NavigatorStorageQuota::storageQuota() const
     78 {
     79     if (!m_storageQuota && frame())
     80         m_storageQuota = StorageQuota::create();
     81     return m_storageQuota.get();
     82 }
     83 
     84 DeprecatedStorageQuota* NavigatorStorageQuota::webkitTemporaryStorage() const
     85 {
     86     if (!m_temporaryStorage && frame())
     87         m_temporaryStorage = DeprecatedStorageQuota::create(DeprecatedStorageQuota::Temporary);
     88     return m_temporaryStorage.get();
     89 }
     90 
     91 DeprecatedStorageQuota* NavigatorStorageQuota::webkitPersistentStorage() const
     92 {
     93     if (!m_persistentStorage && frame())
     94         m_persistentStorage = DeprecatedStorageQuota::create(DeprecatedStorageQuota::Persistent);
     95     return m_persistentStorage.get();
     96 }
     97 
     98 void NavigatorStorageQuota::trace(Visitor* visitor)
     99 {
    100     visitor->trace(m_storageQuota);
    101     visitor->trace(m_temporaryStorage);
    102     visitor->trace(m_persistentStorage);
    103     WillBeHeapSupplement<Navigator>::trace(visitor);
    104     DOMWindowProperty::trace(visitor);
    105 }
    106 
    107 } // namespace blink
    108