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      1 /*
      2  * Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef InjectedBundleUserMessageCoders_h
     27 #define InjectedBundleUserMessageCoders_h
     28 
     29 #include "UserMessageCoders.h"
     30 #include "WebFrame.h"
     31 #include "WebPage.h"
     32 #include "WebPageGroupData.h"
     33 #include "WebPageGroupProxy.h"
     34 #include "WebProcess.h"
     35 
     36 namespace WebKit {
     37 
     38 // Adds
     39 // - BundlePage -> Page
     40 // - BundleFrame -> Frame
     41 // - BundlePageGroup -> PageGroup
     42 
     43 class InjectedBundleUserMessageEncoder : public UserMessageEncoder<InjectedBundleUserMessageEncoder> {
     44 public:
     45     typedef UserMessageEncoder<InjectedBundleUserMessageEncoder> Base;
     46 
     47     InjectedBundleUserMessageEncoder(APIObject* root)
     48         : Base(root)
     49     {
     50     }
     51 
     52     void encode(CoreIPC::ArgumentEncoder* encoder) const
     53     {
     54         APIObject::Type type = APIObject::TypeNull;
     55         if (baseEncode(encoder, type))
     56             return;
     57 
     58         switch (type) {
     59         case APIObject::TypeBundlePage: {
     60             WebPage* page = static_cast<WebPage*>(m_root);
     61             encoder->encode(page->pageID());
     62             break;
     63         }
     64         case APIObject::TypeBundleFrame: {
     65             WebFrame* frame = static_cast<WebFrame*>(m_root);
     66             encoder->encode(frame->frameID());
     67             break;
     68         }
     69         case APIObject::TypeBundlePageGroup: {
     70             WebPageGroupProxy* pageGroup = static_cast<WebPageGroupProxy*>(m_root);
     71             encoder->encode(pageGroup->pageGroupID());
     72             break;
     73         }
     74         default:
     75             ASSERT_NOT_REACHED();
     76             break;
     77         }
     78     }
     79 };
     80 
     81 // Adds
     82 //   - Page -> BundlePage
     83 //   - Frame -> BundleFrame
     84 //   - PageGroup -> BundlePageGroup
     85 
     86 class InjectedBundleUserMessageDecoder : public UserMessageDecoder<InjectedBundleUserMessageDecoder> {
     87 public:
     88     typedef UserMessageDecoder<InjectedBundleUserMessageDecoder> Base;
     89 
     90     InjectedBundleUserMessageDecoder(RefPtr<APIObject>& root)
     91         : Base(root)
     92     {
     93     }
     94 
     95     InjectedBundleUserMessageDecoder(InjectedBundleUserMessageDecoder&, RefPtr<APIObject>& root)
     96         : Base(root)
     97     {
     98     }
     99 
    100     static bool decode(CoreIPC::ArgumentDecoder* decoder, InjectedBundleUserMessageDecoder& coder)
    101     {
    102         APIObject::Type type = APIObject::TypeNull;
    103         if (!Base::baseDecode(decoder, coder, type))
    104             return false;
    105 
    106         if (coder.m_root || type == APIObject::TypeNull)
    107             return true;
    108 
    109         switch (type) {
    110         case APIObject::TypePage: {
    111             uint64_t pageID;
    112             if (!decoder->decode(pageID))
    113                 return false;
    114             coder.m_root = WebProcess::shared().webPage(pageID);
    115             break;
    116         }
    117         case APIObject::TypeFrame: {
    118             uint64_t frameID;
    119             if (!decoder->decode(frameID))
    120                 return false;
    121             coder.m_root = WebProcess::shared().webFrame(frameID);
    122             break;
    123         }
    124         case APIObject::TypePageGroup: {
    125             WebPageGroupData pageGroupData;
    126             if (!decoder->decode(pageGroupData))
    127                 return false;
    128             coder.m_root = WebProcess::shared().webPageGroup(pageGroupData);
    129             break;
    130         }
    131         default:
    132             return false;
    133         }
    134 
    135         return true;
    136     }
    137 };
    138 
    139 } // namespace WebKit
    140 
    141 #endif // InjectedBundleUserMessageCoders_h
    142