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Diffstat (limited to 'dom/plugins/ipc/NPEventWindows.h')
| -rw-r--r-- | dom/plugins/ipc/NPEventWindows.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/dom/plugins/ipc/NPEventWindows.h b/dom/plugins/ipc/NPEventWindows.h new file mode 100644 index 000000000..faf93a601 --- /dev/null +++ b/dom/plugins/ipc/NPEventWindows.h @@ -0,0 +1,160 @@ +/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */ +/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_dom_plugins_NPEventWindows_h +#define mozilla_dom_plugins_NPEventWindows_h 1 + +#ifndef WM_MOUSEHWHEEL +#define WM_MOUSEHWHEEL (0x020E) +#endif + +#include "npapi.h" +namespace mozilla { + +namespace plugins { + +// We use an NPRemoteEvent struct so that we can store the extra data on +// the stack so that we don't need to worry about managing the memory. +struct NPRemoteEvent +{ + NPEvent event; + union { + RECT rect; + WINDOWPOS windowpos; + } lParamData; + double contentsScaleFactor; +}; + +} + +} + +namespace IPC { + +template <> +struct ParamTraits<mozilla::plugins::NPRemoteEvent> +{ + typedef mozilla::plugins::NPRemoteEvent paramType; + + static void Write(Message* aMsg, const paramType& aParam) + { + // Make a non-const copy of aParam so that we can muck with + // its insides for tranport + paramType paramCopy; + + paramCopy.event = aParam.event; + + // We can't blindly ipc events because they may sometimes contain + // pointers to memory in the sending process. For example, the + // WM_IME_CONTROL with the IMC_GETCOMPOSITIONFONT message has lParam + // set to a pointer to a LOGFONT structure. + switch (paramCopy.event.event) { + case WM_WINDOWPOSCHANGED: + // The lParam parameter of WM_WINDOWPOSCHANGED holds a pointer to + // a WINDOWPOS structure that contains information about the + // window's new size and position + paramCopy.lParamData.windowpos = *(reinterpret_cast<WINDOWPOS*>(paramCopy.event.lParam)); + break; + case WM_PAINT: + // The lParam parameter of WM_PAINT holds a pointer to an RECT + // structure specifying the bounding box of the update area. + paramCopy.lParamData.rect = *(reinterpret_cast<RECT*>(paramCopy.event.lParam)); + break; + + // the white list of events that we will ipc to the client + case WM_CHAR: + case WM_SYSCHAR: + + case WM_KEYUP: + case WM_SYSKEYUP: + + case WM_KEYDOWN: + case WM_SYSKEYDOWN: + + case WM_DEADCHAR: + case WM_SYSDEADCHAR: + case WM_CONTEXTMENU: + + case WM_CUT: + case WM_COPY: + case WM_PASTE: + case WM_CLEAR: + case WM_UNDO: + + case WM_MOUSELEAVE: + case WM_MOUSEMOVE: + case WM_LBUTTONDOWN: + case WM_MBUTTONDOWN: + case WM_RBUTTONDOWN: + case WM_LBUTTONUP: + case WM_MBUTTONUP: + case WM_RBUTTONUP: + case WM_LBUTTONDBLCLK: + case WM_MBUTTONDBLCLK: + case WM_RBUTTONDBLCLK: + + case WM_MOUSEWHEEL: + case WM_MOUSEHWHEEL: + + case WM_SETFOCUS: + case WM_KILLFOCUS: + + case WM_IME_STARTCOMPOSITION: + case WM_IME_COMPOSITION: + case WM_IME_ENDCOMPOSITION: + case WM_IME_CHAR: + case WM_IME_SETCONTEXT: + case WM_IME_COMPOSITIONFULL: + case WM_IME_KEYDOWN: + case WM_IME_KEYUP: + case WM_IME_SELECT: + case WM_INPUTLANGCHANGEREQUEST: + case WM_INPUTLANGCHANGE: + break; + + default: + // RegisterWindowMessage events should be passed. + if (paramCopy.event.event >= 0xC000) + break; + + // FIXME/bug 567465: temporarily work around unhandled + // events by forwarding a "dummy event". The eventual + // fix will be to stop trying to send these events + // entirely. + paramCopy.event.event = WM_NULL; + break; + } + + aMsg->WriteBytes(¶mCopy, sizeof(paramType)); + } + + static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult) + { + if (!aMsg->ReadBytesInto(aIter, aResult, sizeof(paramType))) { + return false; + } + + if (aResult->event.event == WM_PAINT) { + // restore the lParam to point at the RECT + aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.rect); + } else if (aResult->event.event == WM_WINDOWPOSCHANGED) { + // restore the lParam to point at the WINDOWPOS + aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.windowpos); + } + + return true; + } + + static void Log(const paramType& aParam, std::wstring* aLog) + { + aLog->append(L"(WINEvent)"); + } + +}; + +} // namespace IPC + +#endif // ifndef mozilla_dom_plugins_NPEventWindows_h |