protected override bool OnBeforeBrowse(CefBrowser browser, CefFrame frame, CefRequest request, CefHandlerNavType navType, bool isRedirect)
{
#if DIAGNOSTICS
Cef.Logger.Trace(LogTarget.CefRequestHandler, "OnBeforeBrowse: Method=[{0}] Url=[{1}] NavType=[{2}] IsRedirect=[{3}]", request.GetMethod(), request.GetURL(), navType, isRedirect);
#endif
var cancel = this.context.OnNavigating(frame, request, navType, isRedirect);
if (cancel) return true;
if (frame.IsMain)
{
// browser navigating to a new page
this.context.ClearFrames();
this.context.AttachMainFrame(frame);
this.context.ClearReadyState();
this.context.SetFrameReadyState(null, FrameReadyState.Navigating);
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
this.context.SetFrameReadyState(frame.GetName(), FrameReadyState.Navigating);
}
return false;
}
protected override bool OnBeforeBrowse(CefBrowser browser, CefFrame frame, CefRequest request, CefHandlerNavType navType, bool isRedirect)
{
#if DIAGNOSTICS
Cef.Logger.Trace(LogTarget.CefRequestHandler, "OnBeforeBrowse: Method=[{0}] Url=[{1}] NavType=[{2}] IsRedirect=[{3}]", request.GetMethod(), request.GetURL(), navType, isRedirect);
#endif
var cancel = this.context.OnNavigating(frame, request, navType, isRedirect);
if (cancel)
{
return(true);
}
if (frame.IsMain)
{
// browser navigating to a new page
this.context.ClearFrames();
this.context.AttachMainFrame(frame);
this.context.ClearReadyState();
this.context.SetFrameReadyState(null, FrameReadyState.Navigating);
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
this.context.SetFrameReadyState(frame.GetName(), FrameReadyState.Navigating);
}
return(false);
}
protected override bool OnLoadError(CefBrowser browser, CefFrame frame, CefHandlerErrorCode errorCode, string failedUrl, ref string errorText)
{
/*
#if DIAGNOSTICS
* Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadError: ErrorCode=[{0}] FailedUrl=[{1}] ErrorText=[{2}]", errorCode, failedUrl, errorText);
#endif
*/
Console.WriteLine("OnLoadError: Name=[{0}] Url=[{1}] ",
frame.IsMain ? "MAIN" : frame.GetName(),
frame.GetURL()
);
return(false);
// errorText = "OnLoadError: ErrorCode=[" + errorCode.ToString() + "], URL=[" + failedUrl + "].";
// return true;
}
protected override void OnLoadStart(CefBrowser browser, CefFrame frame)
{
/*
#if DIAGNOSTICS
* Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadStart");
#endif
*/
if (frame.IsMain)
{
this.context.SetFrameReadyState(null, FrameReadyState.Navigated);
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
this.context.SetFrameReadyState(frame.GetName(), FrameReadyState.Navigated);
}
this.context.OnNavigated(frame);
/*
* if (frame.GetURL() == "testshell-error:")
* {
* this.context.ProgressFrameBrowsing();
* }
*/
/*
* var frames = browser.GetFrameNames();
* var framesCount = frames.Count;
* var url = frame.GetURL();
*/
// FIXME: This is doesn't support popup windows. Now it changes IsLoading property even if popup loading.
// It can be simple solved by checking browser.IsPopup, but it is good (hide popup's events)?
// Also it can be solved (it is required by anyway) to create different Client to Popup window - so client can know how it must be reported.
}
protected override void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
{
/*
#if DIAGNOSTICS
* Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadEnd: HttpStatusCode=[{0}]", httpStatusCode);
#endif
*/
var completed = false;
if (frame.IsMain)
{
if (this.context.GetFrameReadyState(null) == FrameReadyState.Navigated)
{
this.context.SetFrameReadyState(null, FrameReadyState.Completed);
completed = true;
}
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
var frameName = frame.GetName();
if (this.context.GetFrameReadyState(frameName) == FrameReadyState.Navigated)
{
this.context.SetFrameReadyState(frameName, FrameReadyState.Completed);
completed = true;
}
}
if (completed)
{
this.context.OnDocumentCompleted(frame, httpStatusCode);
}
this.context.CheckReadiness();
// TODO: DocumentLoading/DocumentLoaded event per LoadStart and LoadEnd/Error ?
// TODO: DocumentCompleted event ?
/*
* if (!browser.IsPopup && frame.IsMain)
* {
* // At this moment we know frames
* var frames = this.control.GetFrameNames(); // get frame names, not that it can be done only from UI thread, so better not block IO thread, and do required decision later.
* Cef.Logger.Info(LogTarget.CefWebBrowser, "Browser Have {0} frames: {1}", frames.Count(), string.Join(", ", frames.Select(_ => "\"" + _ + "\"")));
* }
*/
/*
* if (framesLoading == 0)
* {
* // check that document are ready to interact
* // FIXME: now it is doesn't work as required, may be better use callback from js code,
* // and post it via ExecuteJavaScript, which internally queue via timeout request, and when it completed - fire callback.
*
* frame.ExecuteJavaScript("setTimeout(function(){cefGlue.client.log('this code must fire document interactive event.');},0);", "cefGlue", 0);
* // frame.ExecuteJavaScript("cefGlue.client.log('hello2');", "cefGlue", 0);
* // frame.ExecuteJavaScript("cefGlue.client.log('hello3');", "cefGlue", 0);
* CefTask.Post(CefThreadId.UI, () =>
* {
* var success = (bool)this.control.InvokeScript("cefGlue.getDocumentState");
* if (success) this.control.PostDocumentInteractive(EventArgs.Empty);
* });
#if DIAGNOSTICS
* Cef.Logger.Info(LogTarget.Default, "GetDocumentState queued.");
#endif
* }
*/
}
protected override bool OnLoadError(CefBrowser browser, CefFrame frame, CefHandlerErrorCode errorCode, string failedUrl, ref string errorText)
{
/*
#if DIAGNOSTICS
Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadError: ErrorCode=[{0}] FailedUrl=[{1}] ErrorText=[{2}]", errorCode, failedUrl, errorText);
#endif
*/
Console.WriteLine("OnLoadError: Name=[{0}] Url=[{1}] ",
frame.IsMain ? "MAIN" : frame.GetName(),
frame.GetURL()
);
return false;
// errorText = "OnLoadError: ErrorCode=[" + errorCode.ToString() + "], URL=[" + failedUrl + "].";
// return true;
}
protected override void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
{
/*
#if DIAGNOSTICS
Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadEnd: HttpStatusCode=[{0}]", httpStatusCode);
#endif
*/
var completed = false;
if (frame.IsMain)
{
if (this.context.GetFrameReadyState(null) == FrameReadyState.Navigated)
{
this.context.SetFrameReadyState(null, FrameReadyState.Completed);
completed = true;
}
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
var frameName = frame.GetName();
if (this.context.GetFrameReadyState(frameName) == FrameReadyState.Navigated)
{
this.context.SetFrameReadyState(frameName, FrameReadyState.Completed);
completed = true;
}
}
if (completed)
{
this.context.OnDocumentCompleted(frame, httpStatusCode);
}
this.context.CheckReadiness();
// TODO: DocumentLoading/DocumentLoaded event per LoadStart and LoadEnd/Error ?
// TODO: DocumentCompleted event ?
/*
if (!browser.IsPopup && frame.IsMain)
{
// At this moment we know frames
var frames = this.control.GetFrameNames(); // get frame names, not that it can be done only from UI thread, so better not block IO thread, and do required decision later.
Cef.Logger.Info(LogTarget.CefWebBrowser, "Browser Have {0} frames: {1}", frames.Count(), string.Join(", ", frames.Select(_ => "\"" + _ + "\"")));
}
*/
/*
if (framesLoading == 0)
{
// check that document are ready to interact
// FIXME: now it is doesn't work as required, may be better use callback from js code,
// and post it via ExecuteJavaScript, which internally queue via timeout request, and when it completed - fire callback.
frame.ExecuteJavaScript("setTimeout(function(){cefGlue.client.log('this code must fire document interactive event.');},0);", "cefGlue", 0);
// frame.ExecuteJavaScript("cefGlue.client.log('hello2');", "cefGlue", 0);
// frame.ExecuteJavaScript("cefGlue.client.log('hello3');", "cefGlue", 0);
CefTask.Post(CefThreadId.UI, () =>
{
var success = (bool)this.control.InvokeScript("cefGlue.getDocumentState");
if (success) this.control.PostDocumentInteractive(EventArgs.Empty);
});
#if DIAGNOSTICS
Cef.Logger.Info(LogTarget.Default, "GetDocumentState queued.");
#endif
}
*/
}
protected override void OnLoadStart(CefBrowser browser, CefFrame frame)
{
/*
#if DIAGNOSTICS
Cef.Logger.Trace(LogTarget.CefLoadHandler, "LoadHandler.OnLoadStart");
#endif
*/
if (frame.IsMain)
{
this.context.SetFrameReadyState(null, FrameReadyState.Navigated);
}
else if ((this.context.ReadyOptions & CefReadyOptions.Frames) != 0)
{
this.context.SetFrameReadyState(frame.GetName(), FrameReadyState.Navigated);
}
this.context.OnNavigated(frame);
/*
if (frame.GetURL() == "testshell-error:")
{
this.context.ProgressFrameBrowsing();
}
*/
/*
var frames = browser.GetFrameNames();
var framesCount = frames.Count;
var url = frame.GetURL();
*/
// FIXME: This is doesn't support popup windows. Now it changes IsLoading property even if popup loading.
// It can be simple solved by checking browser.IsPopup, but it is good (hide popup's events)?
// Also it can be solved (it is required by anyway) to create different Client to Popup window - so client can know how it must be reported.
}
