1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/plugins/ipc/NPEventWindows.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,144 @@
1.4 +/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
1.5 +/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_plugins_NPEventWindows_h
1.11 +#define mozilla_dom_plugins_NPEventWindows_h 1
1.12 +
1.13 +
1.14 +#include "npapi.h"
1.15 +namespace mozilla {
1.16 +
1.17 +namespace plugins {
1.18 +
1.19 +// We use an NPRemoteEvent struct so that we can store the extra data on
1.20 +// the stack so that we don't need to worry about managing the memory.
1.21 +struct NPRemoteEvent
1.22 +{
1.23 + NPEvent event;
1.24 + union {
1.25 + RECT rect;
1.26 + WINDOWPOS windowpos;
1.27 + } lParamData;
1.28 +};
1.29 +
1.30 +}
1.31 +
1.32 +}
1.33 +
1.34 +namespace IPC {
1.35 +
1.36 +template <>
1.37 +struct ParamTraits<mozilla::plugins::NPRemoteEvent>
1.38 +{
1.39 + typedef mozilla::plugins::NPRemoteEvent paramType;
1.40 +
1.41 + static void Write(Message* aMsg, const paramType& aParam)
1.42 + {
1.43 + // Make a non-const copy of aParam so that we can muck with
1.44 + // its insides for tranport
1.45 + paramType paramCopy;
1.46 +
1.47 + paramCopy.event = aParam.event;
1.48 +
1.49 + // We can't blindly ipc events because they may sometimes contain
1.50 + // pointers to memory in the sending process. For example, the
1.51 + // WM_IME_CONTROL with the IMC_GETCOMPOSITIONFONT message has lParam
1.52 + // set to a pointer to a LOGFONT structure.
1.53 + switch (paramCopy.event.event) {
1.54 + case WM_WINDOWPOSCHANGED:
1.55 + // The lParam parameter of WM_WINDOWPOSCHANGED holds a pointer to
1.56 + // a WINDOWPOS structure that contains information about the
1.57 + // window's new size and position
1.58 + paramCopy.lParamData.windowpos = *(reinterpret_cast<WINDOWPOS*>(paramCopy.event.lParam));
1.59 + break;
1.60 + case WM_PAINT:
1.61 + // The lParam parameter of WM_PAINT holds a pointer to an RECT
1.62 + // structure specifying the bounding box of the update area.
1.63 + paramCopy.lParamData.rect = *(reinterpret_cast<RECT*>(paramCopy.event.lParam));
1.64 + break;
1.65 +
1.66 + // the white list of events that we will ipc to the client
1.67 + case WM_CHAR:
1.68 + case WM_SYSCHAR:
1.69 +
1.70 + case WM_KEYUP:
1.71 + case WM_SYSKEYUP:
1.72 +
1.73 + case WM_KEYDOWN:
1.74 + case WM_SYSKEYDOWN:
1.75 +
1.76 + case WM_DEADCHAR:
1.77 + case WM_SYSDEADCHAR:
1.78 + case WM_CONTEXTMENU:
1.79 +
1.80 + case WM_CUT:
1.81 + case WM_COPY:
1.82 + case WM_PASTE:
1.83 + case WM_CLEAR:
1.84 + case WM_UNDO:
1.85 +
1.86 + case WM_MOUSELEAVE:
1.87 + case WM_MOUSEMOVE:
1.88 + case WM_LBUTTONDOWN:
1.89 + case WM_MBUTTONDOWN:
1.90 + case WM_RBUTTONDOWN:
1.91 + case WM_LBUTTONUP:
1.92 + case WM_MBUTTONUP:
1.93 + case WM_RBUTTONUP:
1.94 + case WM_LBUTTONDBLCLK:
1.95 + case WM_MBUTTONDBLCLK:
1.96 + case WM_RBUTTONDBLCLK:
1.97 +
1.98 + case WM_SETFOCUS:
1.99 + case WM_KILLFOCUS:
1.100 + break;
1.101 +
1.102 + default:
1.103 + // RegisterWindowMessage events should be passed.
1.104 + if (paramCopy.event.event >= 0xC000)
1.105 + break;
1.106 +
1.107 + // FIXME/bug 567465: temporarily work around unhandled
1.108 + // events by forwarding a "dummy event". The eventual
1.109 + // fix will be to stop trying to send these events
1.110 + // entirely.
1.111 + paramCopy.event.event = WM_NULL;
1.112 + break;
1.113 + }
1.114 +
1.115 + aMsg->WriteBytes(¶mCopy, sizeof(paramType));
1.116 + }
1.117 +
1.118 + static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
1.119 + {
1.120 + const char* bytes = 0;
1.121 +
1.122 + if (!aMsg->ReadBytes(aIter, &bytes, sizeof(paramType))) {
1.123 + return false;
1.124 + }
1.125 + memcpy(aResult, bytes, sizeof(paramType));
1.126 +
1.127 + if (aResult->event.event == WM_PAINT) {
1.128 + // restore the lParam to point at the RECT
1.129 + aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.rect);
1.130 + } else if (aResult->event.event == WM_WINDOWPOSCHANGED) {
1.131 + // restore the lParam to point at the WINDOWPOS
1.132 + aResult->event.lParam = reinterpret_cast<LPARAM>(&aResult->lParamData.windowpos);
1.133 + }
1.134 +
1.135 + return true;
1.136 + }
1.137 +
1.138 + static void Log(const paramType& aParam, std::wstring* aLog)
1.139 + {
1.140 + aLog->append(L"(WINEvent)");
1.141 + }
1.142 +
1.143 +};
1.144 +
1.145 +} // namespace IPC
1.146 +
1.147 +#endif // ifndef mozilla_dom_plugins_NPEventWindows_h
