Application becomes unresponsive

[Gerculy Robert]

Hello, I'm working on a Traffic Exchange software for my website using  CEF : 3.2171.2069, Chromium 39.0.2171.95.

For some reason the application becomes unresponsive after 2-3 minutes. The application worked nicely with other frameworks ( Awesomium[huge memory usage], GeckoFx ) but I had to change them because I need some special settings and I couldn't accomplish with those frameworks ( I'm new ) .

My Form1 script : http://pastebin.com/R7udjTcK 

Contains 90% of the program,  I have a second file, IJsDialogHandler, used to block JS Alert ( I tested the app without this file and the program goes crazy.)   Still looking for a solution for POP-UP windows.

1.         private void Browser_Initializer()
2.        {
3.            var settings = new CefSettings();
4.            var currentDirectory = Directory.GetCurrentDirectory();
5.            settings.CefCommandLineArgs.Add("disable-gpu-vsync", "1");
6.            settings.CefCommandLineArgs.Add("disable-gpu", "1");
7.            settings.CachePath = @"" + currentDirectory + "cache";
8.            settings.CachePath = Application.StartupPath;
9.            settings.CefCommandLineArgs.Add("persist_session_cookies", "1");
10.            settings.LogSeverity = LogSeverity.Verbose;
11.            Cef.SetCookiePath(cache_dir, true);
12.            Cef.Initialize(settings);
14.  
15.            var browser = new ChromiumWebBrowser("http://www.nodlweb.com/v2/")
16.            {
17.                Dock = DockStyle.Fill
18.            };
19.            Controls.Add(browser);
21.             toolStripContainer2.ContentPanel.Controls.Add(browser);
23.             browser.JsDialogHandler = new JsDialogHandler();
24.            Browser = browser;
25.        }

This code is loaded in public Form1() .

When the traffic exchange is on, I use Browser.Load(WebURL); to update the URL.

I run over the code again and again, but I just can't find what is wrong.

By unresponsive I mean I can't click on any button, the webpage is stuck, but the program is not in NOT RESPONDING state.

Tested on Personal Computer : ( I5 CPU 4x3.1Ghz, 12 GB RAM) - Windows 7

Tested on Personal Computer : ( Intel Dual Core 3 Ghz. 4 GB Ram ) - Windows 8.1

Tested on VPS : Single Core : 2.1 Ghz CPU with 768 MB Ram - Windows Server 2008

Debug Log : http://pastebin.com/FRCWttDJ

[Alex Maitland]

Can you reproduce your problem with https://github.com/cefsharp/CefSharp.MinimalExample?

[Gerculy Robert]

Yes, It's even worst. The app feels like it's running on a machine with 512 MB ram.

[Gerculy Robert]

Actually, the browser is working - even right click ( on old code, show on post, however system buttons are blocked, so is the traffic exchange ( timers ). Similar to a Javascript Alert box ( which blocks any browser - even from closing it ) . but there is not alert box. 

[Gerculy Robert]

Update : I think is not the problem with Cefsharp, I thnink is my MYSQL server, more likely, to many connections.  I attached a console to my app and seems that there is a problem,

Will update.

[Alex Maitland]

Can you push your fork of `MinimalExample so we can see it? Preferably only include code that is relevant to reproducing the problem.

[Alex Maitland]

Ok cool, sounds promising.

[Gerculy Robert]

It works, 

I used resharper to clean a code section and it did a bit wrong. 

Wrong :

MyReader4 = MyCommand4.ExecuteReader();

MyConn4.Open();

Right :

MyConn4.Open();
MyReader4 = MyCommand4.ExecuteReader();

Simple but effective,

-----

I still don't have a solution for POP-Ups, anyone knows a solution for that ? ( How to block them, or take out the whole multi-window thing.

Thanks.

[Alex Maitland]

https://github.com/cefsharp/CefSharp/blob/master/CefSharp/ILifeSpanHandler.cs

[Gerculy Robert]

namespace Nodlweb

{

    internal class ILifeSpanHandler

    {

        public bool OnBeforePopup(IWebBrowser browser, string url, ref int x, ref int y, ref int width, ref int height)

        {

            return true;

        }

    }

}

This should block it right ? For some reason it doesn't.

[Alex Maitland]

Assuming it's a popup Window that your trying to block, returning true will cancel it's creation.

For javascript popups it's IJsDialogHandler you need to implement.

https://github.com/cefsharp/CefSharp/blob/master/CefSharp/IJsDialogHandler.cs

[Gerculy Robert]

I got this four : 

        public bool OnJSAlert(IWebBrowser browser, string url, string message)

        {

            return true;

        }

        public bool OnJSConfirm(IWebBrowser browser, string url, string message, out bool retval)

        {

            retval = true;

            return true;

        }

        public bool OnJSPrompt(IWebBrowser browser, string url, string message, string defaultValue, out bool retval, out string result)

        {

            retval = true;

            result = null;

            return true;

        }

        public bool OnJSBeforeUnload(IWebBrowser browser, string message, bool isReload, out bool allowUnload)

        {

            //NOTE: Setting allowUnload to false will cancel the unload request

            allowUnload = true;

            //NOTE: Returning false will trigger the default behaviour, you need to return true to handle yourself.

            return true;

        }

And https://github.com/cefsharp/CefSharp/blob/master/CefSharp/IJsDialogHandler.cs shows nothing else.

[Alex Maitland]

There's a param, `suppress_message` that's not exposed in `CefSharp` that would be ideal.

http://magpcss.org/ceforum/apidocs3/projects/%28default%29/CefJSDialogHandler.html#OnJSDialog%28CefRefPtr%3CCefBrowser%3E,constCefString&,constCefString&,JSDialogType,constCefString&,constCefString&,CefRefPtr%3CCefJSDialogCallback%3E,bool&%29

Current implementation looks like https://github.com/cefsharp/CefSharp/blob/master/CefSharp.Core/Internals/ClientAdapter.cpp#L463

[Alex Maitland]

I created https://github.com/cefsharp/CefSharp/issues/999 if your interested in getting involved with fixing up the implementation.

[Gerculy Robert]

Thank you. I will look into tonight. 

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