mirror of
git://source.winehq.org/git/wine.git
synced 2024-08-31 22:36:07 +00:00
uiautomationcore: Create UI Automation client thread.
Signed-off-by: Connor McAdams <cmcadams@codeweavers.com>
This commit is contained in:
parent
41dd89a8e4
commit
8642e96c19
|
@ -427,6 +427,7 @@ static ULONG WINAPI uia_provider_AddRef(IWineUiaProvider *iface)
|
|||
return ref;
|
||||
}
|
||||
|
||||
static void uia_stop_client_thread(void);
|
||||
static ULONG WINAPI uia_provider_Release(IWineUiaProvider *iface)
|
||||
{
|
||||
struct uia_provider *prov = impl_from_IWineUiaProvider(iface);
|
||||
|
@ -436,7 +437,10 @@ static ULONG WINAPI uia_provider_Release(IWineUiaProvider *iface)
|
|||
if (!ref)
|
||||
{
|
||||
if (prov->node)
|
||||
{
|
||||
IWineUiaNode_Release(prov->node);
|
||||
uia_stop_client_thread();
|
||||
}
|
||||
else
|
||||
IRawElementProviderSimple_Release(prov->elprov);
|
||||
heap_free(prov);
|
||||
|
@ -772,6 +776,154 @@ HRESULT WINAPI UiaNodeFromProvider(IRawElementProviderSimple *elprov, HUIANODE *
|
|||
return hr;
|
||||
}
|
||||
|
||||
/*
|
||||
* UI Automation client thread functions.
|
||||
*/
|
||||
struct uia_client_thread
|
||||
{
|
||||
CO_MTA_USAGE_COOKIE mta_cookie;
|
||||
HANDLE hthread;
|
||||
HWND hwnd;
|
||||
LONG ref;
|
||||
};
|
||||
|
||||
static struct uia_client_thread client_thread;
|
||||
static CRITICAL_SECTION client_thread_cs;
|
||||
static CRITICAL_SECTION_DEBUG client_thread_cs_debug =
|
||||
{
|
||||
0, 0, &client_thread_cs,
|
||||
{ &client_thread_cs_debug.ProcessLocksList, &client_thread_cs_debug.ProcessLocksList },
|
||||
0, 0, { (DWORD_PTR)(__FILE__ ": client_thread_cs") }
|
||||
};
|
||||
static CRITICAL_SECTION client_thread_cs = { &client_thread_cs_debug, -1, 0, 0, 0, 0 };
|
||||
|
||||
#define WM_UIA_CLIENT_GET_NODE_PROV (WM_USER + 1)
|
||||
#define WM_UIA_CLIENT_THREAD_STOP (WM_USER + 2)
|
||||
static HRESULT create_wine_uia_nested_node_provider(struct uia_node *node, LRESULT lr);
|
||||
static LRESULT CALLBACK uia_client_thread_msg_proc(HWND hwnd, UINT msg, WPARAM wparam,
|
||||
LPARAM lparam)
|
||||
{
|
||||
switch (msg)
|
||||
{
|
||||
case WM_UIA_CLIENT_GET_NODE_PROV:
|
||||
return create_wine_uia_nested_node_provider((struct uia_node *)lparam, (LRESULT)wparam);
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return DefWindowProcW(hwnd, msg, wparam, lparam);
|
||||
}
|
||||
|
||||
static DWORD WINAPI uia_client_thread_proc(void *arg)
|
||||
{
|
||||
HANDLE initialized_event = arg;
|
||||
HWND hwnd;
|
||||
MSG msg;
|
||||
|
||||
hwnd = CreateWindowW(L"Message", NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, NULL);
|
||||
if (!hwnd)
|
||||
{
|
||||
WARN("CreateWindow failed: %ld\n", GetLastError());
|
||||
FreeLibraryAndExitThread(huia_module, 1);
|
||||
}
|
||||
|
||||
SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (LONG_PTR)uia_client_thread_msg_proc);
|
||||
client_thread.hwnd = hwnd;
|
||||
|
||||
/* Initialization complete, thread can now process window messages. */
|
||||
SetEvent(initialized_event);
|
||||
TRACE("Client thread started.\n");
|
||||
while (GetMessageW(&msg, NULL, 0, 0))
|
||||
{
|
||||
if (msg.message == WM_UIA_CLIENT_THREAD_STOP)
|
||||
break;
|
||||
TranslateMessage(&msg);
|
||||
DispatchMessageW(&msg);
|
||||
}
|
||||
|
||||
TRACE("Shutting down UI Automation client thread.\n");
|
||||
|
||||
DestroyWindow(hwnd);
|
||||
FreeLibraryAndExitThread(huia_module, 0);
|
||||
}
|
||||
|
||||
static BOOL uia_start_client_thread(void)
|
||||
{
|
||||
BOOL started = TRUE;
|
||||
|
||||
EnterCriticalSection(&client_thread_cs);
|
||||
if (++client_thread.ref == 1)
|
||||
{
|
||||
HANDLE ready_event = NULL;
|
||||
HANDLE events[2];
|
||||
HMODULE hmodule;
|
||||
DWORD wait_obj;
|
||||
HRESULT hr;
|
||||
|
||||
/*
|
||||
* We use CoIncrementMTAUsage here instead of CoInitialize because it
|
||||
* allows us to exit the implicit MTA immediately when the thread
|
||||
* reference count hits 0, rather than waiting for the thread to
|
||||
* shutdown and call CoUninitialize like the provider thread.
|
||||
*/
|
||||
hr = CoIncrementMTAUsage(&client_thread.mta_cookie);
|
||||
if (FAILED(hr))
|
||||
{
|
||||
started = FALSE;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Increment DLL reference count. */
|
||||
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
|
||||
(const WCHAR *)uia_start_client_thread, &hmodule);
|
||||
|
||||
events[0] = ready_event = CreateEventW(NULL, FALSE, FALSE, NULL);
|
||||
if (!(client_thread.hthread = CreateThread(NULL, 0, uia_client_thread_proc,
|
||||
ready_event, 0, NULL)))
|
||||
{
|
||||
FreeLibrary(hmodule);
|
||||
started = FALSE;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
events[1] = client_thread.hthread;
|
||||
wait_obj = WaitForMultipleObjects(2, events, FALSE, INFINITE);
|
||||
if (wait_obj != WAIT_OBJECT_0)
|
||||
{
|
||||
CloseHandle(client_thread.hthread);
|
||||
started = FALSE;
|
||||
}
|
||||
|
||||
exit:
|
||||
if (ready_event)
|
||||
CloseHandle(ready_event);
|
||||
if (!started)
|
||||
{
|
||||
WARN("Failed to start client thread\n");
|
||||
if (client_thread.mta_cookie)
|
||||
CoDecrementMTAUsage(client_thread.mta_cookie);
|
||||
memset(&client_thread, 0, sizeof(client_thread));
|
||||
}
|
||||
}
|
||||
|
||||
LeaveCriticalSection(&client_thread_cs);
|
||||
return started;
|
||||
}
|
||||
|
||||
static void uia_stop_client_thread(void)
|
||||
{
|
||||
EnterCriticalSection(&client_thread_cs);
|
||||
if (!--client_thread.ref)
|
||||
{
|
||||
PostMessageW(client_thread.hwnd, WM_UIA_CLIENT_THREAD_STOP, 0, 0);
|
||||
CoDecrementMTAUsage(client_thread.mta_cookie);
|
||||
CloseHandle(client_thread.hthread);
|
||||
memset(&client_thread, 0, sizeof(client_thread));
|
||||
}
|
||||
LeaveCriticalSection(&client_thread_cs);
|
||||
}
|
||||
|
||||
static HRESULT create_wine_uia_nested_node_provider(struct uia_node *node, LRESULT lr)
|
||||
{
|
||||
IGlobalInterfaceTable *git;
|
||||
|
@ -781,7 +933,10 @@ static HRESULT create_wine_uia_nested_node_provider(struct uia_node *node, LRESU
|
|||
|
||||
hr = ObjectFromLresult(lr, &IID_IWineUiaNode, 0, (void **)&nested_node);
|
||||
if (FAILED(hr))
|
||||
{
|
||||
uia_stop_client_thread();
|
||||
return hr;
|
||||
}
|
||||
|
||||
prov = heap_alloc_zero(sizeof(*prov));
|
||||
if (!prov)
|
||||
|
@ -809,22 +964,34 @@ exit:
|
|||
return hr;
|
||||
}
|
||||
|
||||
/*
|
||||
* UiaNodeFromHandle is expected to work even if the calling thread hasn't
|
||||
* initialized COM. We marshal our node on a separate thread that initializes
|
||||
* COM for this reason.
|
||||
*/
|
||||
static HRESULT uia_get_provider_from_hwnd(struct uia_node *node)
|
||||
{
|
||||
LRESULT lr;
|
||||
|
||||
if (!uia_start_client_thread())
|
||||
return E_FAIL;
|
||||
|
||||
SetLastError(NOERROR);
|
||||
lr = SendMessageW(node->hwnd, WM_GETOBJECT, 0, UiaRootObjectId);
|
||||
if (GetLastError() == ERROR_INVALID_WINDOW_HANDLE)
|
||||
{
|
||||
uia_stop_client_thread();
|
||||
return UIA_E_ELEMENTNOTAVAILABLE;
|
||||
}
|
||||
|
||||
if (!lr)
|
||||
{
|
||||
FIXME("No native UIA provider for hwnd %p, MSAA proxy currently unimplemented.\n", node->hwnd);
|
||||
uia_stop_client_thread();
|
||||
return E_NOTIMPL;
|
||||
}
|
||||
|
||||
return create_wine_uia_nested_node_provider(node, lr);
|
||||
return SendMessageW(client_thread.hwnd, WM_UIA_CLIENT_GET_NODE_PROV, (WPARAM)lr, (LPARAM)node);
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
|
|
Loading…
Reference in a new issue