internal Callback(CefMessageRouterBrowserSide router, int browserId, long queryId, bool persistent)
{
_router = router;
_browserId = browserId;
_queryId = queryId;
_persistent = persistent;
}
internal Callback(CefMessageRouterBrowserSide router, int browserId, long queryId, bool persistent)
{
_router = router;
_browserId = browserId;
_queryId = queryId;
_persistent = persistent;
}
internal OnQueryEventArgs(CefBrowser _browser, CefFrame _frame, long _queryId, string _request, bool _persistent, CefMessageRouterBrowserSide.Callback _callback)
{
browser = _browser;
frame = _frame;
queryId = _queryId;
request = _request;
persistent = _persistent;
callback = _callback;
Handled = false; //default return value
}
public override bool OnQuery(CefBrowser browser, CefFrame frame, long queryId, string request, bool persistent, CefMessageRouterBrowserSide.Callback callback)
{
Debug.WriteLine(DBGPREFIX + "OnQuery called, [" + queryId + " " + (persistent ? "" : "not" + " persistent]: ") + request);
var handler = OnQueryEvent;
if (handler != null)
{
Debug.WriteLine(DBGPREFIX + "OnQuery Delegate");
var e = new OnQueryEventArgs(browser, frame, queryId, request, persistent, callback);
handler(this, e);
return e.Handled;
}
return false;
}
internal LVCefClient(LVCefControl lvCefControl)
{
Debug.WriteLine(DBGPREFIX + "Created");
if (lvCefControl == null)
throw new CefRuntimeException(DBGPREFIX + "Instance of a LVCefControl required to create an LVCefClient");
_lvCefControl = lvCefControl;
_messageRouter = new CefMessageRouterBrowserSide(new CefMessageRouterConfig());
LifeSpanHandler = new LVCefLifeSpanHandler(_lvCefControl, _messageRouter);
RequestHandler = new LVCefRequestHandler(_lvCefControl, _messageRouter);
MessageRouterHandler = new LVCefMessageRouterHandler(_lvCefControl, _messageRouter);
RegisterMessageRouter();
}
/// <summary>
/// Notify the associated JavaScript onFailure callback that the query has
/// failed with the specified |error_code| and |error_message|.
/// </summary>
public void Failure(int errorCode, string errorMessage)
{
if (!CefRuntime.CurrentlyOn(CefThreadId.UI))
{
// Must execute on the UI thread to access member variables.
Helpers.PostTask(CefThreadId.UI,
Helpers.Apply(this.Failure, errorCode, errorMessage)
);
return;
}
if (_router != null)
{
Helpers.PostTaskUncertainty(CefThreadId.UI,
Helpers.Apply(_router.OnCallbackFailure, _browserId, _queryId, errorCode, errorMessage)
);
// Failure always invalidates the callback.
_router = null;
}
}
/// <summary>
/// Notify the associated JavaScript onSuccess callback that the query has
/// completed successfully with the specified |response|.
/// </summary>
public void Success(string response)
{
if (!CefRuntime.CurrentlyOn(CefThreadId.UI))
{
Helpers.PostTask(CefThreadId.UI,
Helpers.Apply(this.Success, response)
);
return;
}
if (_router != null)
{
Helpers.PostTaskUncertainty(CefThreadId.UI,
Helpers.Apply(_router.OnCallbackSuccess, _browserId, _queryId, response)
);
if (!_persistent)
{
// Non-persistent callbacks are only good for a single use.
_router = null;
}
}
}
/// <summary>
/// Notify the associated JavaScript onSuccess callback that the query has
/// completed successfully with the specified |response|.
/// </summary>
public void Success(string response)
{
if (!CefRuntime.CurrentlyOn(CefThreadId.UI))
{
Helpers.PostTask(CefThreadId.UI,
Helpers.Apply(this.Success, response)
);
return;
}
if (_router != null)
{
Helpers.PostTaskUncertainty(CefThreadId.UI,
Helpers.Apply(_router.OnCallbackSuccess, _browserId, _queryId, response)
);
if (!_persistent)
{
// Non-persistent callbacks are only good for a single use.
_router = null;
}
}
}
internal LVCefMessageRouterHandler(LVCefControl lvCefControl, CefMessageRouterBrowserSide messageRouter)
{
Debug.WriteLine(DBGPREFIX + "Created");
_lvCefControl = lvCefControl;
_messageRouter = messageRouter;
}
public override bool OnQuery(CefBrowser browser, CefFrame frame, long queryId, string request, bool persistent, CefMessageRouterBrowserSide.Callback callback)
{
if (request == "wait5")
{
new Thread(() =>
{
Thread.Sleep(5000);
callback.Success("success! responded after 5 sec timeout."); // TODO: at this place crash can occurs, if application closed
}).Start();
return true;
}
if (request == "wait5f")
{
new Thread(() =>
{
Thread.Sleep(5000);
callback.Failure(12345, "success! responded after 5 sec timeout. responded as failure.");
}).Start();
return true;
}
if (request == "wait30")
{
new Thread(() =>
{
Thread.Sleep(30000);
callback.Success("success! responded after 30 sec timeout.");
}).Start();
return true;
}
if (request == "noanswer")
{
return true;
}
var chars = request.ToCharArray();
Array.Reverse(chars);
var response = new string(chars);
callback.Success(response);
return true;
}
internal void Detach()
{
Helpers.RequireUIThread();
_router = null;
}
internal void Detach()
{
Helpers.RequireUIThread();
_router = null;
}
/// <summary>
/// Notify the associated JavaScript onFailure callback that the query has
/// failed with the specified |error_code| and |error_message|.
/// </summary>
public void Failure(int errorCode, string errorMessage)
{
if (!CefRuntime.CurrentlyOn(CefThreadId.UI))
{
// Must execute on the UI thread to access member variables.
Helpers.PostTask(CefThreadId.UI,
Helpers.Apply(this.Failure, errorCode, errorMessage)
);
return;
}
if (_router != null)
{
Helpers.PostTaskUncertainty(CefThreadId.UI,
Helpers.Apply(_router.OnCallbackFailure, _browserId, _queryId, errorCode, errorMessage)
);
// Failure always invalidates the callback.
_router = null;
}
}
internal LVCefRequestHandler(LVCefControl lvCefControl, CefMessageRouterBrowserSide messageRouter)
{
Debug.WriteLine(DBGPREFIX + "Constructor");
_lvCefControl = lvCefControl;
_messageRouter = messageRouter;
}
