mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
351 lines
11 KiB
C++
351 lines
11 KiB
C++
/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
|
|
/* 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/. */
|
|
|
|
#include "mozilla/ipc/RPCChannel.h"
|
|
#include "nsAppShell.h"
|
|
#include "nsToolkit.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "WinTaskbar.h"
|
|
#include "WinMouseScrollHandler.h"
|
|
#include "nsWindowDefs.h"
|
|
#include "nsString.h"
|
|
#include "nsIMM32Handler.h"
|
|
#include "mozilla/widget/AudioSession.h"
|
|
#include "mozilla/HangMonitor.h"
|
|
|
|
// For skidmark code
|
|
#include <windows.h>
|
|
#include <tlhelp32.h>
|
|
|
|
const PRUnichar* kAppShellEventId = L"nsAppShell:EventID";
|
|
const PRUnichar* kTaskbarButtonEventId = L"TaskbarButtonCreated";
|
|
|
|
static UINT sMsgId;
|
|
|
|
UINT sTaskbarButtonCreatedMsg;
|
|
|
|
/* static */
|
|
UINT nsAppShell::GetTaskbarButtonCreatedMessage() {
|
|
return sTaskbarButtonCreatedMsg;
|
|
}
|
|
|
|
namespace mozilla {
|
|
namespace crashreporter {
|
|
void LSPAnnotate();
|
|
} // namespace crashreporter
|
|
} // namespace mozilla
|
|
|
|
using mozilla::crashreporter::LSPAnnotate;
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
static bool PeekUIMessage(MSG* aMsg)
|
|
{
|
|
// For avoiding deadlock between our process and plugin process by
|
|
// mouse wheel messages, we're handling actually when we receive one of
|
|
// following internal messages which is posted by native mouse wheel message
|
|
// handler. Any other events, especially native modifier key events, should
|
|
// not be handled between native message and posted internal message because
|
|
// it may make different modifier key state or mouse cursor position between
|
|
// them.
|
|
if (mozilla::widget::MouseScrollHandler::IsWaitingInternalMessage() &&
|
|
::PeekMessageW(aMsg, NULL, MOZ_WM_MOUSEWHEEL_FIRST,
|
|
MOZ_WM_MOUSEWHEEL_LAST, PM_REMOVE)) {
|
|
return true;
|
|
}
|
|
|
|
MSG keyMsg, imeMsg, mouseMsg, *pMsg = 0;
|
|
bool haveKeyMsg, haveIMEMsg, haveMouseMsg;
|
|
|
|
haveKeyMsg = ::PeekMessageW(&keyMsg, NULL, WM_KEYFIRST, WM_IME_KEYLAST, PM_NOREMOVE);
|
|
haveIMEMsg = ::PeekMessageW(&imeMsg, NULL, NS_WM_IMEFIRST, NS_WM_IMELAST, PM_NOREMOVE);
|
|
haveMouseMsg = ::PeekMessageW(&mouseMsg, NULL, WM_MOUSEFIRST, WM_MOUSELAST, PM_NOREMOVE);
|
|
|
|
if (haveKeyMsg) {
|
|
pMsg = &keyMsg;
|
|
}
|
|
if (haveIMEMsg && (!pMsg || imeMsg.time < pMsg->time)) {
|
|
pMsg = &imeMsg;
|
|
}
|
|
|
|
if (pMsg && !nsIMM32Handler::CanOptimizeKeyAndIMEMessages(pMsg)) {
|
|
return false;
|
|
}
|
|
|
|
if (haveMouseMsg && (!pMsg || mouseMsg.time < pMsg->time)) {
|
|
pMsg = &mouseMsg;
|
|
}
|
|
|
|
if (!pMsg) {
|
|
return false;
|
|
}
|
|
|
|
return ::PeekMessageW(aMsg, NULL, pMsg->message, pMsg->message, PM_REMOVE);
|
|
}
|
|
|
|
/*static*/ LRESULT CALLBACK
|
|
nsAppShell::EventWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
if (uMsg == sMsgId) {
|
|
nsAppShell *as = reinterpret_cast<nsAppShell *>(lParam);
|
|
as->NativeEventCallback();
|
|
NS_RELEASE(as);
|
|
return TRUE;
|
|
}
|
|
return DefWindowProc(hwnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
nsAppShell::~nsAppShell()
|
|
{
|
|
if (mEventWnd) {
|
|
// DestroyWindow doesn't do anything when called from a non UI thread.
|
|
// Since mEventWnd was created on the UI thread, it must be destroyed on
|
|
// the UI thread.
|
|
SendMessage(mEventWnd, WM_CLOSE, 0, 0);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsAppShell::Init()
|
|
{
|
|
#ifdef MOZ_CRASHREPORTER
|
|
LSPAnnotate();
|
|
#endif
|
|
|
|
mLastNativeEventScheduled = TimeStamp::Now();
|
|
|
|
if (!sMsgId)
|
|
sMsgId = RegisterWindowMessageW(kAppShellEventId);
|
|
|
|
sTaskbarButtonCreatedMsg = ::RegisterWindowMessageW(kTaskbarButtonEventId);
|
|
NS_ASSERTION(sTaskbarButtonCreatedMsg, "Could not register taskbar button creation message");
|
|
|
|
WNDCLASSW wc;
|
|
HINSTANCE module = GetModuleHandle(NULL);
|
|
|
|
const PRUnichar *const kWindowClass = L"nsAppShell:EventWindowClass";
|
|
if (!GetClassInfoW(module, kWindowClass, &wc)) {
|
|
wc.style = 0;
|
|
wc.lpfnWndProc = EventWindowProc;
|
|
wc.cbClsExtra = 0;
|
|
wc.cbWndExtra = 0;
|
|
wc.hInstance = module;
|
|
wc.hIcon = NULL;
|
|
wc.hCursor = NULL;
|
|
wc.hbrBackground = (HBRUSH) NULL;
|
|
wc.lpszMenuName = (LPCWSTR) NULL;
|
|
wc.lpszClassName = kWindowClass;
|
|
RegisterClassW(&wc);
|
|
}
|
|
|
|
mEventWnd = CreateWindowW(kWindowClass, L"nsAppShell:EventWindow",
|
|
0, 0, 0, 10, 10, NULL, NULL, module, NULL);
|
|
NS_ENSURE_STATE(mEventWnd);
|
|
|
|
return nsBaseAppShell::Init();
|
|
}
|
|
|
|
/**
|
|
* This is some temporary code to keep track of where in memory dlls are
|
|
* loaded. This is useful in case someone calls into a dll that has been
|
|
* unloaded. This code lets us see which dll used to be loaded at the given
|
|
* called address.
|
|
*/
|
|
#if defined(_MSC_VER) && defined(_M_IX86)
|
|
|
|
#define LOADEDMODULEINFO_STRSIZE 23
|
|
#define NUM_LOADEDMODULEINFO 250
|
|
|
|
struct LoadedModuleInfo {
|
|
void* mStartAddr;
|
|
void* mEndAddr;
|
|
char mName[LOADEDMODULEINFO_STRSIZE + 1];
|
|
};
|
|
|
|
static LoadedModuleInfo* sLoadedModules = 0;
|
|
|
|
static void
|
|
CollectNewLoadedModules()
|
|
{
|
|
HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
|
|
MODULEENTRY32W module;
|
|
|
|
// Take a snapshot of all modules in our process.
|
|
hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, 0);
|
|
if (hModuleSnap == INVALID_HANDLE_VALUE)
|
|
return;
|
|
|
|
// Set the size of the structure before using it.
|
|
module.dwSize = sizeof(MODULEENTRY32W);
|
|
|
|
// Now walk the module list of the process,
|
|
// and display information about each module
|
|
bool done = !Module32FirstW(hModuleSnap, &module);
|
|
while (!done) {
|
|
NS_LossyConvertUTF16toASCII moduleName(module.szModule);
|
|
bool found = false;
|
|
uint32_t i;
|
|
for (i = 0; i < NUM_LOADEDMODULEINFO &&
|
|
sLoadedModules[i].mStartAddr; ++i) {
|
|
if (sLoadedModules[i].mStartAddr == module.modBaseAddr &&
|
|
!strcmp(moduleName.get(),
|
|
sLoadedModules[i].mName)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found && i < NUM_LOADEDMODULEINFO) {
|
|
sLoadedModules[i].mStartAddr = module.modBaseAddr;
|
|
sLoadedModules[i].mEndAddr = module.modBaseAddr + module.modBaseSize;
|
|
strncpy(sLoadedModules[i].mName, moduleName.get(),
|
|
LOADEDMODULEINFO_STRSIZE);
|
|
sLoadedModules[i].mName[LOADEDMODULEINFO_STRSIZE] = 0;
|
|
}
|
|
|
|
done = !Module32NextW(hModuleSnap, &module);
|
|
}
|
|
|
|
uint32_t i;
|
|
for (i = 0; i < NUM_LOADEDMODULEINFO &&
|
|
sLoadedModules[i].mStartAddr; ++i) {}
|
|
|
|
CloseHandle(hModuleSnap);
|
|
}
|
|
#endif // defined(_MSC_VER) && defined(_M_IX86)
|
|
|
|
NS_IMETHODIMP
|
|
nsAppShell::Run(void)
|
|
{
|
|
#if defined(_MSC_VER) && defined(_M_IX86)
|
|
LoadedModuleInfo modules[NUM_LOADEDMODULEINFO];
|
|
memset(modules, 0, sizeof(modules));
|
|
sLoadedModules = modules;
|
|
#endif
|
|
|
|
// Ignore failure; failing to start the application is not exactly an
|
|
// appropriate response to failing to start an audio session.
|
|
mozilla::widget::StartAudioSession();
|
|
|
|
nsresult rv = nsBaseAppShell::Run();
|
|
|
|
mozilla::widget::StopAudioSession();
|
|
|
|
#if defined(_MSC_VER) && defined(_M_IX86)
|
|
// Don't forget to null this out!
|
|
sLoadedModules = nullptr;
|
|
#endif
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsAppShell::Exit(void)
|
|
{
|
|
return nsBaseAppShell::Exit();
|
|
}
|
|
|
|
void
|
|
nsAppShell::DoProcessMoreGeckoEvents()
|
|
{
|
|
// Called by nsBaseAppShell's NativeEventCallback() after it has finished
|
|
// processing pending gecko events and there are still gecko events pending
|
|
// for the thread. (This can happen if NS_ProcessPendingEvents reached it's
|
|
// starvation timeout limit.) The default behavior in nsBaseAppShell is to
|
|
// call ScheduleNativeEventCallback to post a follow up native event callback
|
|
// message. This triggers an additional call to NativeEventCallback for more
|
|
// gecko event processing.
|
|
|
|
// There's a deadlock risk here with certain internal Windows modal loops. In
|
|
// our dispatch code, we prioritize messages so that input is handled first.
|
|
// However Windows modal dispatch loops often prioritize posted messages. If
|
|
// we find ourselves in a tight gecko timer loop where NS_ProcessPendingEvents
|
|
// takes longer than the timer duration, NS_HasPendingEvents(thread) will
|
|
// always be true. ScheduleNativeEventCallback will be called on every
|
|
// NativeEventCallback callback, and in a Windows modal dispatch loop, the
|
|
// callback message will be processed first -> input gets starved, dead lock.
|
|
|
|
// To avoid, don't post native callback messages from NativeEventCallback
|
|
// when we're in a modal loop. This gets us back into the Windows modal
|
|
// dispatch loop dispatching input messages. Once we drop out of the modal
|
|
// loop, we use mNativeCallbackPending to fire off a final NativeEventCallback
|
|
// if we need it, which insures NS_ProcessPendingEvents gets called and all
|
|
// gecko events get processed.
|
|
if (mEventloopNestingLevel < 2) {
|
|
OnDispatchedEvent(nullptr);
|
|
mNativeCallbackPending = false;
|
|
} else {
|
|
mNativeCallbackPending = true;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsAppShell::ScheduleNativeEventCallback()
|
|
{
|
|
// Post a message to the hidden message window
|
|
NS_ADDREF_THIS(); // will be released when the event is processed
|
|
// Time stamp this event so we can detect cases where the event gets
|
|
// dropping in sub classes / modal loops we do not control.
|
|
mLastNativeEventScheduled = TimeStamp::Now();
|
|
::PostMessage(mEventWnd, sMsgId, 0, reinterpret_cast<LPARAM>(this));
|
|
}
|
|
|
|
bool
|
|
nsAppShell::ProcessNextNativeEvent(bool mayWait)
|
|
{
|
|
#if defined(_MSC_VER) && defined(_M_IX86)
|
|
if (sXPCOMHasLoadedNewDLLs && sLoadedModules) {
|
|
sXPCOMHasLoadedNewDLLs = false;
|
|
CollectNewLoadedModules();
|
|
}
|
|
#endif
|
|
|
|
// Notify ipc we are spinning a (possibly nested) gecko event loop.
|
|
mozilla::ipc::RPCChannel::NotifyGeckoEventDispatch();
|
|
|
|
bool gotMessage = false;
|
|
|
|
do {
|
|
MSG msg;
|
|
bool uiMessage = PeekUIMessage(&msg);
|
|
|
|
// Give priority to keyboard and mouse messages.
|
|
if (uiMessage ||
|
|
PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) {
|
|
gotMessage = true;
|
|
if (msg.message == WM_QUIT) {
|
|
::PostQuitMessage(msg.wParam);
|
|
Exit();
|
|
} else {
|
|
// If we had UI activity we would be processing it now so we know we
|
|
// have either kUIActivity or kActivityNoUIAVail.
|
|
mozilla::HangMonitor::NotifyActivity(
|
|
uiMessage ? mozilla::HangMonitor::kUIActivity :
|
|
mozilla::HangMonitor::kActivityNoUIAVail);
|
|
::TranslateMessage(&msg);
|
|
::DispatchMessageW(&msg);
|
|
}
|
|
} else if (mayWait) {
|
|
// Block and wait for any posted application message
|
|
mozilla::HangMonitor::Suspend();
|
|
::WaitMessage();
|
|
}
|
|
} while (!gotMessage && mayWait);
|
|
|
|
// See DoProcessNextNativeEvent, mEventloopNestingLevel will be
|
|
// one when a modal loop unwinds.
|
|
if (mNativeCallbackPending && mEventloopNestingLevel == 1)
|
|
DoProcessMoreGeckoEvents();
|
|
|
|
// Check for starved native callbacks. If we haven't processed one
|
|
// of these events in NATIVE_EVENT_STARVATION_LIMIT, fire one off.
|
|
if ((TimeStamp::Now() - mLastNativeEventScheduled) >
|
|
NATIVE_EVENT_STARVATION_LIMIT) {
|
|
ScheduleNativeEventCallback();
|
|
}
|
|
|
|
return gotMessage;
|
|
}
|