/// <summary>
/// Initializes XPCOM using the specified directory.
/// </summary>
/// <param name="binDirectory">The directory which contains xul.dll.</param>
public static void Initialize(string binDirectory)
{
if (_IsInitialized)
{
return;
}
if (BeforeInitalization != null)
{
BeforeInitalization();
}
Interlocked.Exchange(ref _XpcomThreadId, Thread.CurrentThread.ManagedThreadId);
if (IsWindows)
{
Kernel32.SetDllDirectory(binDirectory);
}
string folder = binDirectory ?? Environment.CurrentDirectory;
string xpcomPath = Path.Combine(folder, IsLinux ? "libxul.so" : "xul.dll");
try
{
// works on windows
// but some classes can be not exist on mono (may be)
// so make it in another function(stack allocation is making on function start)
ReadXulrunnerVersion(xpcomPath);
}
catch (Exception)
{
}
if (binDirectory != null)
{
Environment.SetEnvironmentVariable("PATH",
Environment.GetEnvironmentVariable("PATH") + ";" + binDirectory, EnvironmentVariableTarget.Process);
}
object mreAppDir = null;
if (binDirectory != null)
{
using (nsAString str = new nsAString(Path.GetFullPath(binDirectory)))
if (NS_NewLocalFile(str, true, out mreAppDir) != 0)
{
throw new Exception("Failed on NS_NewLocalFile");
}
}
// temporarily change the current directory so NS_InitEmbedding can find all the DLLs it needs
String oldCurrent = Environment.CurrentDirectory;
Environment.CurrentDirectory = folder;
nsIServiceManager serviceManager;
//int res = NS_InitXPCOM2(out serviceManagerPtr, mreAppDir, new DirectoryServiceProvider());
//Note: the error box that this can generate can't be prevented with try/catch, and res is 0 even if it fails
//REVIEW: how else can we determine what happened and give a more useful answer, to help new GeckoFX users,
//Telling them that probably the version of firefox or xulrunner didn't match this library version?
// calling NS_InitXPCOM2 invokes AddRef to the returned nsIServerManager, but as this gets assigned to the __ComObject serviceManager
// Release will be called by the when the GC runs __ComObject finaliser.
int res = NS_InitXPCOM2(out serviceManager, mreAppDir, null);
// change back
Environment.CurrentDirectory = oldCurrent;
if (res != 0)
{
throw new Exception("Failed on NS_InitXPCOM2");
}
ServiceManager = (nsIServiceManager)serviceManager;
// get some global objects we will need later
NS_GetComponentManager(out ComponentManager);
NS_GetComponentRegistrar(out ComponentRegistrar);
if (IsMono)
{
_comGC = new COMGC();
}
// RegisterProvider is necessary to get link styles etc.
nsIDirectoryService directoryService = GetService <nsIDirectoryService>("@mozilla.org/file/directory_service;1");
if (directoryService != null)
{
directoryService.RegisterProvider(new DirectoryServiceProvider());
}
_IsInitialized = true;
GlobalJSContextHolder.Initialize();
// On Linux calling CreateWindowlessBrowser too early crashes with passing null to gdk_window_enable_synchronized_configure()
// the gdkwidgets window is null.
if (!Xpcom.IsLinux)
{
InitChromeContext();
}
XULAppInfoFactory.Init();
PromptFactoryFactory.Init();
if (AfterInitalization != null)
{
AfterInitalization();
}
}
/// <summary>
/// Initializes XPCOM using the specified directory.
/// </summary>
/// <param name="binDirectory">The directory which contains xul.dll.</param>
public static void Initialize(string binDirectory)
{
if (_IsInitialized)
{
return;
}
Debug.WriteLineIf(Thread.CurrentThread.GetApartmentState() != ApartmentState.STA,
"Warning: Main Entry point missing [STAThread] attribute.");
Debug.Assert(Thread.CurrentThread.GetApartmentState() == ApartmentState.STA,
"Main Entry point missing [STAThread] attribute.");
if (BeforeInitalization != null)
{
BeforeInitalization();
}
Interlocked.Exchange(ref _XpcomThreadId, Thread.CurrentThread.ManagedThreadId);
if (IsWindows)
{
Kernel32.SetDllDirectory(binDirectory);
}
string folder = binDirectory ?? Environment.CurrentDirectory;
string xpcomPath = Path.Combine(folder, IsLinux ? "libxul.so" : "xul.dll");
try
{
// works on windows
// but some classes can be not exist on mono (may be)
// so make it in another function(stack allocation is making on function start)
ReadXulrunnerVersion(xpcomPath);
}
catch (Exception)
{
}
if (binDirectory != null)
{
Environment.SetEnvironmentVariable("PATH", string.Format("{0}{1}{2}",
Environment.GetEnvironmentVariable("PATH"), Path.PathSeparator, binDirectory),
EnvironmentVariableTarget.Process);
}
object mreAppDir = null;
if (binDirectory != null)
{
using (nsAString str = new nsAString(Path.GetFullPath(binDirectory)))
if (NS_NewLocalFile(str, true, out mreAppDir) != 0)
{
throw new Exception("Failed on NS_NewLocalFile");
}
}
// temporarily change the current directory so NS_InitEmbedding can find all the DLLs it needs
String oldCurrent = Environment.CurrentDirectory;
Environment.CurrentDirectory = folder;
nsIServiceManager serviceManager;
//int res = NS_InitXPCOM2(out serviceManagerPtr, mreAppDir, new DirectoryServiceProvider());
//Note: the error box that this can generate can't be prevented with try/catch, and res is 0 even if it fails
//REVIEW: how else can we determine what happened and give a more useful answer, to help new GeckoFX users,
//Telling them that probably the version of firefox or xulrunner didn't match this library version?
// calling NS_InitXPCOM2 invokes AddRef to the returned nsIServerManager, but as this gets assigned to the __ComObject serviceManager
// Release will be called by the when the GC runs __ComObject finaliser.
int res = NS_InitXPCOM2(out serviceManager, mreAppDir, null);
// change back
Environment.CurrentDirectory = oldCurrent;
if (res != 0)
{
throw new Exception("Failed on NS_InitXPCOM2");
}
ServiceManager = (nsIServiceManager)serviceManager;
// get some global objects we will need later
NS_GetComponentManager(out ComponentManager);
NS_GetComponentRegistrar(out ComponentRegistrar);
if (IsMono)
{
_comGC = new COMGC();
}
// RegisterProvider is necessary to get link styles etc.
nsIDirectoryService directoryService =
GetService <nsIDirectoryService>("@mozilla.org/file/directory_service;1");
if (directoryService != null)
{
directoryService.RegisterProvider(new DirectoryServiceProvider());
}
_IsInitialized = true;
// On Linux calling CreateWindowlessBrowser too early crashes with passing null to gdk_window_enable_synchronized_configure()
// the gdkwidgets window is null.
if (!Xpcom.IsLinux)
{
InitChromeContext();
}
XULAppInfoFactory.Init();
OnProfileStartup();
PromptFactoryFactory.Init();
if (AfterInitalization != null)
{
AfterInitalization();
}
if (Xpcom.IsLinux)
{
// Firefox enable offmainthreadcomposition on Linux around May 2015.
// (see https://mozillagfx.wordpress.com/2015/05/19/off-main-thread-compositing-on-linux/ )
// However with geckofx on Linux we end up with two Compositors.
// So we end up with a ClientLayerManager with an uninitalzied mTransactionIdAllocator
// which causes segfault on Paint.
GeckoPreferences.User["layers.offmainthreadcomposition.enabled"] = false;
}
}