static public void PostVersionUpdateEvent()
{
if (_postingUpdate)
{
return;
}
_postingUpdate = true;
CefWin.PostToAppThread(delegate
{
DataVersion++;
_postingUpdate = false;
DataVersionUpdated?.Invoke();
});
}
public DefaultBrowserForm(string defaulturl)
{
InitializeComponent();
if (CefWin.ApplicationIcon != null)
{
this.Icon = CefWin.ApplicationIcon;
}
this.Text = CefWin.ApplicationTitle;
this.MinimumSize = new Size(360, 360);
if (Application.OpenForms.Count - (CefWin._splashForm?.Visible == true ? 1 : 0) == 0)
{
this.StartPosition = FormStartPosition.CenterScreen;
}
this.Disposed += DefaultBrowserForm_Disposed;
this.Resize += DefaultBrowserForm_Resize;
_browserAgent = new BrowserAgent();
_browserAgent.Url = defaulturl;
if (CefWin._splashForm != null)
{
this.Opacity = 0;
//this.ShowInTaskbar = false; //TODO:this will affect the Forms collection , handle it later
}
CefWin.PostToAppThread(delegate
{
BeforeLoad?.Invoke(this, EventArgs.Empty);
CefWin.WriteDebugLine("BeforeLoad Invoked.");
});
}
public void InitClientCommon(CefClient client)
{
uint lastdownloadid = 0;
string lastdownloadop = null;
client.DownloadHandler.BeforeDownload +=
(CefDownloadHandler handler, CefBrowser browser, CefDownloadItem item, string suggested_name, CefBeforeDownloadCallback callback) =>
{
lastdownloadid = item.Id;
lastdownloadop = null;
CefWin.WriteDebugLine("OnBeforeDownload:" + suggested_name + " " + browser.IsPopup + ":" + browser.HasDocument);
CefWin.WriteDebugLine(item.Id + ":" + item.TotalBytes + ":" + item.Url);
CefWin.InvokeInAppThread(delegate
{
var parentForm = System.Windows.Forms.Control.FromChildHandle(browser.GetHost().GetWindowHandle())?.FindForm();
using (var dialog = new System.Windows.Forms.SaveFileDialog())
{
dialog.FileName = suggested_name;
var result = dialog.ShowDialog(parentForm);
if (result == System.Windows.Forms.DialogResult.OK)
{
CefWin.WriteDebugLine("Cont:" + dialog.FileName);
callback.Cont(dialog.FileName, false);
lastdownloadop = "continue";
}
else
{
lastdownloadop = "cancel";
}
}
if (!browser.HasDocument && parentForm != null)
{
parentForm.Hide();
}
if (lastdownloadop == "cancel")
{
return;
}
CefWin.PostToAppThread(delegate
{
DownloadItem.ShowDownloadForm(parentForm?.Visible == true ? parentForm : null);
});
});
};
client.DownloadHandler.DownloadUpdated +=
(CefDownloadHandler handler, CefBrowser browser, CefDownloadItem item, CefDownloadItemCallback callback) =>
{
CefWin.WriteDebugLine("OnDownloadUpdated:" + " " + browser.IsPopup + ":" + browser.HasDocument);
CefWin.WriteDebugLine(item.Id + ":" + item.ReceivedBytes + "/" + item.TotalBytes + ":" + item.Url);
CefWin.WriteDebugLine(item.IsInProgress + ":" + item.IsCanceled + ":" + item.IsComplete + ":" + item.FullPath);
if (lastdownloadid == item.Id && lastdownloadop == "cancel")
{
CefWin.WriteDebugLine("Cancel.");
callback.Cancel();
return;
}
if (lastdownloadid == item.Id && lastdownloadop == "continue")
{
lastdownloadop = "download";
DownloadItem.Show(item, callback);
}
if (item.TotalBytes > 0)
{
DownloadItem.Update(item, callback);
}
//callback.Resume();
if (!browser.HasDocument && (item.IsCanceled || item.IsComplete))
{
//Problem , close the browser will stop the download??
browser.GetHost().CloseBrowser();
}
};
client.LifeSpanHandler.AfterCreated += (a, b) =>
{
CefWin.WriteDebugLine("OnAfterCreated:" + CefWin.ApplicationElapsed);
};
client.LifeSpanHandler.BeforePopup +=
(CefLifeSpanHandler lifeSpanHandler, CefBrowser browser, CefFrame frame, string url, string name, cef_window_open_disposition_t dispostion, int user_gesture, CefPopupFeatures features, CefWindowInfo wininfo, ref CefClient cient, CefBrowserSettings settings, CefDictionaryValue extra_info, ref int no_javascript_access) =>
{
CefWin.WriteDebugLine("OnBeforePopup:" + url + ":" + name);
//Show Popup in DefaultBrowserForm
CefWin.OpenBrowser(url);
return(1);
};
client.RequestHandler.OpenUrlFromTab +=
(CefRequestHandler lifeSpanHandler, CefBrowser browser, CefFrame frame, string url, cef_window_open_disposition_t disposition) =>
{
//This event means shift+click a link.
CefWin.WriteDebugLine("OnOpenUrlFromTab:" + url);
CefWin.OpenBrowser(url);
};
#if DEBUG
client.RequestHandler.BeforeBrowse +=
(CefRequestHandler lifeSpanHandler, CefBrowser browser, CefFrame frame, CefRequest request, int user_gesture, int is_redirect) =>
{
CefWin.WriteDebugLine("OnBeforeBrowse:" + user_gesture + ":" + is_redirect + " , " + request.IsReadOnly + ":" + request.Url);
//No effect , readonly.
//request.SetHeaderByName("Browser-Agent-Id", this.Id.ToString(),true);
return(0);
};
//client.RequestHandler.ResourceRequestHandler.BeforeResourceLoad +=
// (CefResourceRequestHandler handler, CefBrowser browser, CefFrame frame, CefRequest request, CefRequestCallback callback) =>
// {
// //Not able to capture websocket ?
// string url = request.Url;
// if (url.StartsWith("devtools://"))
// return cef_return_value_t.RV_CONTINUE;
// CefWin.WriteDebugLine("OnBeforeResourceLoad:" + request.IsReadOnly + ":" + url);
// //request.SetHeaderByName("CefWinBrowserId", browser.Identifier.ToString(), true);
// //CefWin.WriteDebugLine("BrowserAgentId:" + request.GetHeaderByName("BrowserAgentId"));
// return cef_return_value_t.RV_CONTINUE;
// };
#endif
}