Added a test file for testing the XP Event Loop. This is windows only.

Author: tbogard%aol.net

xpcom/tests/windows/TestHelloXPLoop.cpp

@@ -0,0 +1,126 @@
+#include "nsIServiceManager.h"
+#include "nsCOMPtr.h"
+#include "nsCNativeApp.h"
+#include "nsIEventLoop.h"
+#include <windows.h>
+
+static NS_DEFINE_CID(kNativeAppCID, NS_NATIVE_APP_CID);
+
+LRESULT CALLBACK WndProc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
+void ErrorBox(LPSTR text)
+{
+	MessageBox(NULL, text, "XP Event Loop", MB_OK | MB_ICONSTOP);
+}
+
+void InfoBox(LPSTR text)
+{
+	MessageBox(NULL, text, "XP Event Loop", MB_OK | MB_ICONINFORMATION);
+}
+
+int WINAPI WinMain(HINSTANCE inst, HINSTANCE prevInstance, LPSTR lpszCmdLine,
+	int nShowCmd)
+{
+	char* lpszAppName = "HelloWorld";
+	HWND wnd;
+	WNDCLASSEX wndclass;
+
+	nsCOMPtr<nsIServiceManager> servMgr;
+	NS_InitXPCOM(getter_AddRefs(servMgr));
+	nsComponentManager::AutoRegister(nsIComponentManager::NS_Startup, nsnull);
+
+	nsresult rv;
+	NS_WITH_SERVICE(nsINativeApp, nativeAppService, kNativeAppCID, &rv);
+
+	if(NS_FAILED(rv))
+		{
+		ErrorBox("Failed to get nativeAppService");
+		return -1;
+		}
+	wndclass.cbSize        = sizeof(wndclass);
+   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
+   wndclass.lpfnWndProc   = WndProc;
+   wndclass.cbClsExtra    = 0;
+   wndclass.cbWndExtra    = 0;
+   wndclass.hInstance     = inst;
+   wndclass.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
+   wndclass.hCursor       = LoadCursor(NULL, IDC_ARROW);
+   wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
+   wndclass.lpszMenuName  = NULL;
+   wndclass.lpszClassName = lpszAppName;
+   wndclass.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);
+
+   RegisterClassEx(&wndclass) ;
+
+   wnd = CreateWindow(lpszAppName, "The Hello World",
+                    WS_OVERLAPPEDWINDOW,
+                    CW_USEDEFAULT, CW_USEDEFAULT,
+                    CW_USEDEFAULT, CW_USEDEFAULT,
+                    NULL, NULL, inst, NULL);		     
+
+	ShowWindow(wnd, nShowCmd);
+	UpdateWindow(wnd);
+
+	nsCOMPtr<nsIEventLoop> eventLoop;
+
+	if(NS_FAILED(nativeAppService->CreateEventLoop(L"_MainLoop", 
+		nsEventLoopTypes::MainAppLoop, getter_AddRefs(eventLoop))))
+		{
+		ErrorBox("Failed to create event Loop");
+		return 0;
+		} 
+
+
+	int retCode;
+	eventLoop->Run(nsnull, nsnull, nsnull, &retCode);
+
+	InfoBox("Hello World app is out of loop");
+
+	NS_ShutdownXPCOM(servMgr);
+	InfoBox("Hello World app is exiting");
+	return retCode;
+}
+
+LRESULT CALLBACK WndProc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	HDC         hdc;
+	PAINTSTRUCT ps;
+	RECT        rect;
+
+	switch(msg)
+		{
+		case WM_PAINT:
+			hdc = BeginPaint(wnd, &ps);
+
+			GetClientRect(wnd, &rect);
+
+			DrawText(hdc, "Hello, XP Event Loop!", -1, &rect,
+					 DT_SINGLELINE | DT_CENTER | DT_VCENTER);
+
+			EndPaint(wnd, &ps);
+			return 0;
+
+		case WM_DESTROY:
+			{
+			nsresult rv;
+			NS_WITH_SERVICE(nsINativeApp, nativeAppService, kNativeAppCID, &rv);
+			if(NS_FAILED(rv))
+				{
+				ErrorBox("Could not get NativeAppService");
+				return 0;
+				}
+			nsCOMPtr<nsIEventLoop> eventLoop;
+
+			if(NS_FAILED(nativeAppService->FindEventLoop(L"_MainLoop", 
+				getter_AddRefs(eventLoop))))
+				{
+				ErrorBox("Failed to find event Loop");
+				return 0;
+				}
+			eventLoop->Exit(0);
+			}
+			return 0;
+		}
+
+	return DefWindowProc(wnd, msg, wParam, lParam);
+}