public CocoaWindow(WindowConfiguration config, WebviewBridge bridge)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
if (bridge == null)
{
throw new ArgumentNullException(nameof(bridge));
}
Handle = AppKit.Call("NSWindow", "alloc");
canResizeField = config.CanResize;
var style = GetWantedStyleMask();
ObjC.SendMessage(
Handle,
ObjC.RegisterName("initWithContentRect:styleMask:backing:defer:"),
new CGRect(0, 0, config.Size.Width, config.Size.Height),
new UIntPtr((uint)style),
new UIntPtr(2),
false);
webview = new CocoaWebview(bridge);
ObjC.Call(Handle, "setContentView:", webview.Handle);
webview.TitleChanged += Webview_TitleChanged;
windowDelegate = WindowDelegateDefinition.CreateInstance(this);
ObjC.Call(Handle, "setDelegate:", windowDelegate.Handle);
}
private static void UriSchemeStartCallback(CocoaWebview instance, IntPtr schemeTask)
{
try
{
IntPtr request = ObjC.Call(schemeTask, "request");
IntPtr url = ObjC.Call(request, "URL");
var uri = URL.GetAsUri(url) !;
var host = new Uri(uri.GetComponents(UriComponents.SchemeAndServer, UriFormat.Unescaped));
if (host == instance.customHost)
{
using var contentStream = Application.ContentProvider.GetStreamAsync(uri).GetAwaiter().GetResult();
if (contentStream != null)
{
if (contentStream is UnmanagedMemoryStream unmanagedMemoryStream)
{
unsafe
{
long length = unmanagedMemoryStream.Length - unmanagedMemoryStream.Position;
var data = (IntPtr)unmanagedMemoryStream.PositionPointer;
FinishUriSchemeCallback(url, schemeTask, data, length, uri);
return;
}
}
else
{
byte[] data;
long length;
if (contentStream is MemoryStream memoryStream)
{
data = memoryStream.GetBuffer();
length = memoryStream.Length;
}
else
{
using var copyStream = new MemoryStream();
contentStream.CopyTo(copyStream);
data = copyStream.GetBuffer();
length = copyStream.Length;
}
unsafe
{
fixed(byte *dataPtr = data)
{
FinishUriSchemeCallback(url, schemeTask, (IntPtr)dataPtr, length, uri);
return;
}
}
}
}
}
FinishUriSchemeCallbackWithError(schemeTask, 404);
}
catch { FinishUriSchemeCallbackWithError(schemeTask, 500); }
}
private static void ObservedValueChanged(CocoaWebview instance, IntPtr keyPath)
{
string?key = NSString.GetString(keyPath);
if (key == "title" && instance.UseBrowserTitle)
{
string?title = NSString.GetString(ObjC.Call(instance.Handle, "title"));
instance.TitleChanged?.Invoke(instance, title ?? string.Empty);
}
}
private static async void ScriptCallback(CocoaWebview instance, IntPtr message)
{
if (instance.EnableScriptInterface)
{
IntPtr body = ObjC.Call(message, "body");
IntPtr isString = ObjC.Call(body, "isKindOfClass:", Foundation.GetClass("NSString"));
if (isString != IntPtr.Zero)
{
string data = NSString.GetString(body) !;
await instance.bridge.HandleScriptCall(data);
}
}
}