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comparison: docshell/base/SerializedLoadContext.h
docshell/base/SerializedLoadContext.h
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set sw=2 ts=8 et tw=80 : */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef SerializedLoadContext_h | |
| 8 #define SerializedLoadContext_h | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "ipc/IPCMessageUtils.h" | |
| 12 | |
| 13 class nsILoadContext; | |
| 14 | |
| 15 /* | |
| 16 * This file contains the IPC::SerializedLoadContext class, which is used to | |
| 17 * copy data across IPDL from Child process contexts so it is available in the | |
| 18 * Parent. | |
| 19 */ | |
| 20 | |
| 21 class nsIChannel; | |
| 22 class nsIWebSocketChannel; | |
| 23 | |
| 24 namespace IPC { | |
| 25 | |
| 26 class SerializedLoadContext | |
| 27 { | |
| 28 public: | |
| 29 SerializedLoadContext() | |
| 30 { | |
| 31 Init(nullptr); | |
| 32 } | |
| 33 | |
| 34 SerializedLoadContext(nsILoadContext* aLoadContext); | |
| 35 SerializedLoadContext(nsIChannel* aChannel); | |
| 36 SerializedLoadContext(nsIWebSocketChannel* aChannel); | |
| 37 | |
| 38 void Init(nsILoadContext* aLoadContext); | |
| 39 | |
| 40 bool IsNotNull() const | |
| 41 { | |
| 42 return mIsNotNull; | |
| 43 } | |
| 44 | |
| 45 bool IsPrivateBitValid() const | |
| 46 { | |
| 47 return mIsPrivateBitValid; | |
| 48 } | |
| 49 | |
| 50 // used to indicate if child-side LoadContext * was null. | |
| 51 bool mIsNotNull; | |
| 52 // used to indicate if child-side mUsePrivateBrowsing flag is valid, even if | |
| 53 // mIsNotNull is false, i.e., child LoadContext was null. | |
| 54 bool mIsPrivateBitValid; | |
| 55 bool mIsContent; | |
| 56 bool mUsePrivateBrowsing; | |
| 57 bool mUseRemoteTabs; | |
| 58 bool mIsInBrowserElement; | |
| 59 uint32_t mAppId; | |
| 60 }; | |
| 61 | |
| 62 // Function to serialize over IPDL | |
| 63 template<> | |
| 64 struct ParamTraits<SerializedLoadContext> | |
| 65 { | |
| 66 typedef SerializedLoadContext paramType; | |
| 67 | |
| 68 static void Write(Message* aMsg, const paramType& aParam) | |
| 69 { | |
| 70 WriteParam(aMsg, aParam.mIsNotNull); | |
| 71 WriteParam(aMsg, aParam.mIsContent); | |
| 72 WriteParam(aMsg, aParam.mIsPrivateBitValid); | |
| 73 WriteParam(aMsg, aParam.mUsePrivateBrowsing); | |
| 74 WriteParam(aMsg, aParam.mUseRemoteTabs); | |
| 75 WriteParam(aMsg, aParam.mAppId); | |
| 76 WriteParam(aMsg, aParam.mIsInBrowserElement); | |
| 77 } | |
| 78 | |
| 79 static bool Read(const Message* aMsg, void** aIter, paramType* aResult) | |
| 80 { | |
| 81 if (!ReadParam(aMsg, aIter, &aResult->mIsNotNull) || | |
| 82 !ReadParam(aMsg, aIter, &aResult->mIsContent) || | |
| 83 !ReadParam(aMsg, aIter, &aResult->mIsPrivateBitValid) || | |
| 84 !ReadParam(aMsg, aIter, &aResult->mUsePrivateBrowsing) || | |
| 85 !ReadParam(aMsg, aIter, &aResult->mUseRemoteTabs) || | |
| 86 !ReadParam(aMsg, aIter, &aResult->mAppId) || | |
| 87 !ReadParam(aMsg, aIter, &aResult->mIsInBrowserElement)) { | |
| 88 return false; | |
| 89 } | |
| 90 | |
| 91 return true; | |
| 92 } | |
| 93 }; | |
| 94 | |
| 95 } // namespace IPC | |
| 96 | |
| 97 #endif // SerializedLoadContext_h | |
| 98 |
