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comparison: dom/plugins/ipc/NPEventWindows.h
dom/plugins/ipc/NPEventWindows.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:99d84d638795 |
|---|---|
| 1 /* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */ | |
| 2 /* vim: set sw=4 ts=8 et tw=80 ft=cpp : */ | |
| 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 mozilla_dom_plugins_NPEventWindows_h | |
| 8 #define mozilla_dom_plugins_NPEventWindows_h 1 | |
| 9 | |
| 10 | |
| 11 #include "npapi.h" | |
| 12 namespace mozilla { | |
| 13 | |
| 14 namespace plugins { | |
| 15 | |
| 16 // We use an NPRemoteEvent struct so that we can store the extra data on | |
| 17 // the stack so that we don't need to worry about managing the memory. | |
| 18 struct NPRemoteEvent | |
| 19 { | |
| 20 NPEvent event; | |
| 21 union { | |
| 22 RECT rect; | |
| 23 WINDOWPOS windowpos; | |
| 24 } lParamData; | |
| 25 }; | |
| 26 | |
| 27 } | |
| 28 | |
| 29 } | |
| 30 | |
| 31 namespace IPC { | |
| 32 | |
| 33 template <> | |
| 34 struct ParamTraits<mozilla::plugins::NPRemoteEvent> | |
| 35 { | |
| 36 typedef mozilla::plugins::NPRemoteEvent paramType; | |
| 37 | |
| 38 static void Write(Message* aMsg, const paramType& aParam) | |
| 39 { | |
| 40 // Make a non-const copy of aParam so that we can muck with | |
| 41 // its insides for tranport | |
| 42 paramType paramCopy; | |
| 43 | |
| 44 paramCopy.event = aParam.event; | |
| 45 | |
| 46 // We can't blindly ipc events because they may sometimes contain | |
| 47 // pointers to memory in the sending process. For example, the | |
| 48 // WM_IME_CONTROL with the IMC_GETCOMPOSITIONFONT message has lParam | |
| 49 // set to a pointer to a LOGFONT structure. | |
| 50 switch (paramCopy.event.event) { | |
| 51 case WM_WINDOWPOSCHANGED: | |
| 52 // The lParam parameter of WM_WINDOWPOSCHANGED holds a pointer to | |
| 53 // a WINDOWPOS structure that contains information about the | |
| 54 // window's new size and position | |
| 55 paramCopy.lParamData.windowpos = *(reinterpret_cast<WINDOWPOS*>(paramCopy.event.lParam)); | |
| 56 break; | |
| 57 case WM_PAINT: | |
| 58 // The lParam parameter of WM_PAINT holds a pointer to an RECT | |
| 59 // structure specifying the bounding box of the update area. | |
| 60 paramCopy.lParamData.rect = *(reinterpret_cast<RECT*>(paramCopy.event.lParam)); | |
| 61 break; | |
| 62 | |
| 63 // the white list of events that we will ipc to the client | |
| 64 case WM_CHAR: | |
| 65 case WM_SYSCHAR: | |
| 66 | |
| 67 case WM_KEYUP: | |
| 68 case WM_SYSKEYUP: | |
| 69 | |
| 70 case WM_KEYDOWN: | |
| 71 case WM_SYSKEYDOWN: | |
| 72 | |
| 73 case WM_DEADCHAR: | |
| 74 case WM_SYSDEADCHAR: | |
| 75 case WM_CONTEXTMENU: | |
| 76 | |
| 77 case WM_CUT: | |
| 78 case WM_COPY: | |
| 79 case WM_PASTE: | |
| 80 case WM_CLEAR: | |
| 81 case WM_UNDO: | |
| 82 | |
| 83 case WM_MOUSELEAVE: | |
| 84 case WM_MOUSEMOVE: | |
| 85 case WM_LBUTTONDOWN: | |
| 86 case WM_MBUTTONDOWN: | |
| 87 case WM_RBUTTONDOWN: | |
| 88 case WM_LBUTTONUP: | |
| 89 case WM_MBUTTONUP: | |
| 90 case WM_RBUTTONUP: | |
| 91 case WM_LBUTTONDBLCLK: | |
| 92 case WM_MBUTTONDBLCLK: | |
| 93 case WM_RBUTTONDBLCLK: | |
| 94 | |
| 95 case WM_SETFOCUS: | |
| 96 case WM_KILLFOCUS: | |
| 97 break; | |
| 98 | |
| 99 default: | |
| 100 // RegisterWindowMessage events should be passed. | |
| 101 if (paramCopy.event.event >= 0xC000) | |
| 102 break; | |
| 103 | |
| 104 // FIXME/bug 567465: temporarily work around unhandled | |
| 105 // events by forwarding a "dummy event". The eventual | |
| 106 // fix will be to stop trying to send these events | |
| 107 // entirely. | |
| 108 paramCopy.event.event = WM_NULL; | |
| 109 break; | |
| 110 } | |
| 111 | |
| 112 aMsg->WriteBytes(¶mCopy, sizeof(paramType)); | |
| 113 } | |
| 114 | |
| 115 static bool Read(const Message* aMsg, void** aIter, paramType* aResult) | |
| 116 { | |
| 117 const char* bytes = 0; | |
| 118 | |
| 119 if (!aMsg->ReadBytes(aIter, &bytes, sizeof(paramType))) { | |
| 120 return false; | |
| 121 } | |
| 122 memcpy(aResult, bytes, sizeof(paramType)); | |
| 123 | |
| 124 if (aResult->event.event == WM_PAINT) { | |
| 125 // restore the lParam to point at the RECT | |
| 126 aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.rect); | |
| 127 } else if (aResult->event.event == WM_WINDOWPOSCHANGED) { | |
| 128 // restore the lParam to point at the WINDOWPOS | |
| 129 aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.windowpos); | |
| 130 } | |
| 131 | |
| 132 return true; | |
| 133 } | |
| 134 | |
| 135 static void Log(const paramType& aParam, std::wstring* aLog) | |
| 136 { | |
| 137 aLog->append(L"(WINEvent)"); | |
| 138 } | |
| 139 | |
| 140 }; | |
| 141 | |
| 142 } // namespace IPC | |
| 143 | |
| 144 #endif // ifndef mozilla_dom_plugins_NPEventWindows_h |
