winamp/Src/omBrowser/browserThread.cpp

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2024-09-24 12:54:57 +00:00
#include "main.h"
#include "./browserThread.h"
#include "../nu/threadname.h"
#include <exdisp.h>
typedef struct __BROWSERTHREADCRAEATEPARAM
{
BTCREATEWNDPROC fnCreateWnd;
BTKEYFILTERPROC fnKeyFilter;
ULONG_PTR user;
HANDLE readyEvent;
HWND hHost;
HWND hWinamp;
} BROWSERTHREADCREATEPARAM;
typedef struct __BROWSERTHREAD
{
HHOOK messageHook;
HANDLE wakeupEvent;
UINT flags;
} BROWSERTHREAD;
#define NAVIGATE_WAITTIMEOUT 30
static size_t tlsIndex = TLS_OUT_OF_INDEXES;
static UINT BHTM_DESTROY = 0xFEFE;
static DWORD CALLBACK BrowserThread_MainLoop(LPVOID param);
#define GetThreadInstance() ((TLS_OUT_OF_INDEXES != tlsIndex) ? (BROWSERTHREAD*)Plugin_TlsGetValue(tlsIndex) : NULL)
BOOL BrowserThread_IsQuiting()
{
BROWSERTHREAD *thread = GetThreadInstance();
return (NULL == thread || 0 != ((BHTF_BEGINDESTROY | BHTF_QUITLOOP) & thread->flags));
}
BOOL BrowserThread_SetFlags(UINT flags, UINT flagsMask, BOOL fAlarm)
{
BROWSERTHREAD *thread = GetThreadInstance();
if (NULL == thread) return FALSE;
thread->flags = ((thread->flags & flagsMask) | flags);
if (FALSE == fAlarm)
return TRUE;
return (NULL != thread->wakeupEvent && SetEvent(thread->wakeupEvent));
}
HANDLE BrowserThread_Create(HWND hWinamp, BTCREATEWNDPROC fnCreateWnd, ULONG_PTR user, BTKEYFILTERPROC fnKeyFilter, HWND *pWnd, DWORD *pThreadId)
{
if (NULL == fnCreateWnd)
return NULL;
if (TLS_OUT_OF_INDEXES == tlsIndex)
{
tlsIndex = Plugin_TlsAlloc();
if (TLS_OUT_OF_INDEXES == tlsIndex)
return NULL;
}
DWORD threadId;
BROWSERTHREADCREATEPARAM param;
ZeroMemory(&param, sizeof(BROWSERTHREADCREATEPARAM));
param.fnCreateWnd = fnCreateWnd;
param.fnKeyFilter = fnKeyFilter;
param.user = user;
param.readyEvent = CreateEvent(0, TRUE, FALSE, 0);
param.hWinamp = hWinamp;
HANDLE hThread = CreateThread(NULL, 0, BrowserThread_MainLoop, (LPVOID)&param, 0, &threadId);
if (NULL != hThread)
{
if (NULL != param.readyEvent)
WaitForSingleObject(param.readyEvent, INFINITE);
}
else
{
if (NULL != param.hHost)
{
DestroyWindow(param.hHost);
param.hHost = NULL;
}
threadId = 0;
}
if (NULL != param.readyEvent)
CloseHandle(param.readyEvent);
if (NULL != pThreadId)
*pThreadId = threadId;
if (NULL != pWnd)
*pWnd = param.hHost;
return hThread;
}
BOOL BrowserThread_PostDestroyEx(DWORD threadId, HWND hHost)
{
if (0 == BHTM_DESTROY)
BHTM_DESTROY = RegisterWindowMessage(L"omBrowserDestroyMsg");
if (0 == BHTM_DESTROY ||
FALSE == PostThreadMessage(threadId, BHTM_DESTROY, 0, (LPARAM)hHost))
{
return FALSE;
}
BrowserThread_SetFlags(BHTF_BEGINDESTROY, BHTF_BEGINDESTROY, FALSE);
return TRUE;
}
BOOL BrowserThread_PostDestroy(HWND hHost)
{
return BrowserThread_PostDestroyEx(GetCurrentThreadId(), hHost);
}
BOOL BrowserThread_WaitNavigateComplete(IWebBrowser2 *pWeb2, UINT waitMax)
{
MSG msg;
READYSTATE state;
if (NULL == pWeb2)
return FALSE;
BOOL resultOk = FALSE;
DWORD tickStart = GetTickCount();
for(;;)
{
if (FAILED(pWeb2->get_ReadyState(&state)))
break;
if (READYSTATE_INTERACTIVE <= state)
{
resultOk = TRUE;
break;
}
else
{
DWORD tickNow = GetTickCount();
if (tickNow < tickStart || (tickNow - tickStart) >= waitMax)
{
break; // time out
}
}
DWORD status = MsgWaitForMultipleObjectsEx(0, NULL, NAVIGATE_WAITTIMEOUT, QS_POSTMESSAGE | QS_TIMER | QS_SENDMESSAGE, MWMO_ALERTABLE);
switch(status)
{
case (WAIT_OBJECT_0 + 0):
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if (!CallMsgFilter(&msg, MSGF_BROWSERLOOP))
{
DispatchMessageW(&msg);
}
}
break;
}
}
return resultOk;
}
static BOOL BrowserThread_HandleMessage(MSG *pMsg)
{
switch(pMsg->message)
{
case WM_QUIT:
BrowserThread_SetFlags(BHTF_QUITLOOP, BHTF_QUITLOOP, TRUE);
return TRUE;
}
if (0 != BHTM_DESTROY && BHTM_DESTROY == pMsg->message)
{
HWND hHost = (HWND)pMsg->lParam;
if (NULL != hHost)
{
BrowserThread_SetFlags(BHTF_BEGINDESTROY, BHTF_BEGINDESTROY, FALSE);
SendMessage(hHost, BTM_RELEASECONTAINER, 0, 0L);
DestroyWindow(hHost);
}
return TRUE;
}
return FALSE;
}
static LRESULT CALLBACK BrowserThread_MessageFilterProc(INT code, WPARAM wParam, LPARAM lParam)
{
BROWSERTHREAD *thread = GetThreadInstance();
if (code >= 0)
{
if (BrowserThread_HandleMessage((MSG*)lParam))
{
return TRUE;
}
}
return (NULL != thread && NULL != thread->messageHook) ?
CallNextHookEx(thread->messageHook, code, wParam, lParam) :
FALSE;
}
static BOOL CALLBACK BrowserThread_DefaultKeyFilter(HWND hwnd, MSG *pMsg)
{
return FALSE;
}
inline static BOOL BrowserThread_ProcessMessage(HWND hHost, HWND hWinamp, MSG *pMsg, BTKEYFILTERPROC IsHostMessage)
{
if (hHost != pMsg->hwnd && FALSE == IsChild(hHost, pMsg->hwnd))
return FALSE;
if (pMsg->message >= WM_KEYFIRST && pMsg->message <= WM_KEYLAST)
{
if (FALSE != IsHostMessage(hHost, pMsg))
return TRUE;
switch(pMsg->wParam)
{
case VK_TAB:
{
HWND hOwner = (HWND)(LONG_PTR)GetWindowLongPtr(hHost, GWLP_HWNDPARENT);
if (NULL == hOwner || hWinamp == hOwner)
hOwner = hHost;
return IsDialogMessageW(hOwner, pMsg);
}
break;
}
}
if (pMsg->message == WM_MOUSEWHEEL)
{
POINT cursor;
HWND targetWindow;
POINTSTOPOINT(cursor, pMsg->lParam);
targetWindow = WindowFromPoint(cursor);
if (NULL != targetWindow &&
FALSE == IsChild(hHost, targetWindow ) &&
GetWindowThreadProcessId(targetWindow, NULL) != GetWindowThreadProcessId(hHost, NULL))
{
PostMessage(hWinamp, pMsg->message, pMsg->wParam, pMsg->lParam);
return TRUE;
}
}
return FALSE;
}
static void BrowserThread_FinishThread(BROWSERTHREAD *thread)
{
if (NULL != thread)
{
if (NULL != thread->messageHook)
{
UnhookWindowsHookEx(thread->messageHook);
thread->messageHook = NULL;
}
if (NULL != thread->wakeupEvent)
{
CloseHandle(thread->wakeupEvent);
thread->wakeupEvent = NULL;
}
}
if (TLS_OUT_OF_INDEXES != tlsIndex)
Plugin_TlsSetValue(tlsIndex, NULL);
OleUninitialize();
#ifdef _DEBUG
aTRACE_FMT("[%d] %S: thread exit\r\n", GetCurrentThreadId(), OMBROWSER_NAME);
#endif // _DEBUG
}
static DWORD CALLBACK BrowserThread_MainLoop(LPVOID param)
{
#ifdef _DEBUG
SetThreadName(GetCurrentThreadId(), "omBrowserThread");
aTRACE_FMT("[%d] %S: thread created\r\n", GetCurrentThreadId(), OMBROWSER_NAME);
#endif //_DEBUG
BROWSERTHREADCREATEPARAM *createParam = (BROWSERTHREADCREATEPARAM*)param;
HWND hWinamp = createParam->hWinamp;
BROWSERTHREAD thread;
ZeroMemory(&thread, sizeof(BROWSERTHREAD));
if (TLS_OUT_OF_INDEXES != tlsIndex)
Plugin_TlsSetValue(tlsIndex, &thread);
MSG msg;
PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
BTKEYFILTERPROC IsHostMessage = (NULL != createParam->fnKeyFilter) ? createParam->fnKeyFilter : BrowserThread_DefaultKeyFilter;
thread.messageHook = SetWindowsHookEx(WH_MSGFILTER, BrowserThread_MessageFilterProc, NULL, GetCurrentThreadId());
thread.wakeupEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
HWND hHost = createParam->fnCreateWnd(createParam->user);
createParam->hHost = hHost;
#ifdef _DEBUG
if (NULL != hHost)
aTRACE_FMT("[%d] %S: host created\r\n", GetCurrentThreadId(), OMBROWSER_NAME);
else
aTRACE_FMT("[%d] %S: host creation fialed\r\n", GetCurrentThreadId(), OMBROWSER_NAME);
#endif //_DEBUG
if (NULL != createParam->readyEvent)
SetEvent(createParam->readyEvent);
if (NULL != hHost && FAILED(OleInitialize(0)))
{
DestroyWindow(hHost);
hHost = NULL;
}
if (NULL == hHost)
{
BrowserThread_FinishThread(&thread);
return -1;
}
SendMessage(hHost, BTM_INITCONTAINER, (WPARAM)hWinamp, 0L);
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_NORMAL);
while (0 == (BHTF_QUITLOOP & thread.flags))
{
DWORD status = MsgWaitForMultipleObjectsEx(1, &thread.wakeupEvent, INFINITE,
QS_ALLPOSTMESSAGE | QS_ALLINPUT, MWMO_ALERTABLE | MWMO_INPUTAVAILABLE);
switch(status)
{
case (WAIT_OBJECT_0 + 0):
// wake up!!!
break;
case (WAIT_OBJECT_0 + 1):
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if (!CallMsgFilter(&msg, MSGF_BROWSERLOOP) && NULL != msg.hwnd)
{
if (0 == (BHTF_BEGINDESTROY & thread.flags))
{
if (FALSE == BrowserThread_ProcessMessage(hHost, hWinamp, &msg, IsHostMessage))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
}
else
{
DispatchMessageW(&msg);
}
}
}
break;
}
}
BrowserThread_FinishThread(&thread);
return 0;
}
INT BrowserThread_ModalLoop(HWND hwnd, HANDLE hCancel, DWORD timeout)
{
MSG msg;
for (;;)
{
DWORD status = MsgWaitForMultipleObjectsEx(1, &hCancel, timeout, QS_ALLINPUT, MWMO_ALERTABLE | MWMO_INPUTAVAILABLE);
if (WAIT_OBJECT_0 == status)
{
return 0;
}
else if ((WAIT_OBJECT_0 + 1) == status)
{
while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE))
{
if (msg.message == WM_QUIT)
{
PostQuitMessage((INT)msg.wParam);
return (INT)msg.wParam;
}
if (!IsDialogMessageW(hwnd, &msg))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
}
}
}
return 0;
}