private void Test2Button_Click(object sender, EventArgs e)
{
// This is demonstration of async browser construction.
// .Load method raises exception with message 'CefBrowser is not ready.', cause underlying CefBrowser doesn't created.
// I propose to that .Load method locks internally and wait for CefBrowser (AfterHandleCreated message).
// But note, that lock also lock main message loop (if called from UI thread), or we can got inifinite lock, if no message arrived - so some timeout required.
// If we have plans to support singlethreaded cef message loop - we must process cef message loop.
// We can give name for event AfterHandleCreated as BrowserReady or Ready.
// Note, that this is event only signals, that browser constructed, - this is NOT DocumentReady or Navigated.
// Also .BrowserReady event is good, but method to perform sync operation also can be useful.
PrepareTest();
browser = new CefWebBrowser();
browser.Parent = panel;
browser.Dock = DockStyle.Fill;
try
{
browser.Load("http://google.com");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void Test2Button_Click(object sender, EventArgs e)
{
// This is demonstration of async browser construction.
// .Load method raises exception with message 'CefBrowser is not ready.', cause underlying CefBrowser doesn't created.
// I propose to that .Load method locks internally and wait for CefBrowser (AfterHandleCreated message).
// But note, that lock also lock main message loop (if called from UI thread), or we can got inifinite lock, if no message arrived - so some timeout required.
// If we have plans to support singlethreaded cef message loop - we must process cef message loop.
// We can give name for event AfterHandleCreated as BrowserReady or Ready.
// Note, that this is event only signals, that browser constructed, - this is NOT DocumentReady or Navigated.
// Also .BrowserReady event is good, but method to perform sync operation also can be useful.
PrepareTest();
browser = new CefWebBrowser();
browser.Parent = panel;
browser.Dock = DockStyle.Fill;
try
{
browser.Load("http://google.com");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void HandleGoButtonClick(object sender, EventArgs e)
{
if (_browserControl.IsLoading)
{
_browserControl.Stop();
}
else
{
_browserControl.Load(urlTextBox.Text);
}
}
protected void AddToolbarAndBrowserToTab(TabPage tabPage, CefWebBrowser browser)
{
TextBox urlbox = new TextBox();
urlbox.Top = 0;
urlbox.Width = 200;
//urlbox.Text = "https://getfirebug.com/releases/lite/1.2/";
//urlbox.Text = "file:///G:/en2/build/view/demo.html";
//urlbox.Text = "file:///G:/en2/build/view/demo.html";
Button nav = new Button();
nav.Text = "Go";
nav.Left = 200;
Button newTab = new Button();
newTab.Text = "NewTab";
newTab.Left = 200 + nav.Width;
Button closeTab = new Button();
closeTab.Text = "Close";
closeTab.Left = 200 + nav.Width + newTab.Width;
//browser.PropertyChanged += (se, ev) =>
//{
// if (ev.PropertyName != "IsBrowserInitialized") return;
// if (html == string.Empty)
// {
// string url = "https://dictionary.cambridge.org/grammar/british-grammar/above-or-over", text = string.Empty, _fix_lib = string.Empty;
// Debug.WriteLine("#-> " + url);
// text = f_link_getHtmlOnline(url);
// string head = text.Split(new string[] { "<body" }, StringSplitOptions.None)[0], s = "<div" + text.Substring(head.Length + 5);
// int posH1 = s.ToLower().IndexOf("<h1");
// if (posH1 != -1) s = s.Substring(posH1, s.Length - posH1);
// head = Html.f_html_Format(url, head);
// s = Html.f_html_Format(url, s);
// //if (File.Exists("view/fix.html")) _fix_lib = File.ReadAllText("view/fix.html");
// text = head.Replace("<head>", @"<head><meta http-equiv=""Content-Type"" content=""text/html; charset=utf-8"" />" + _fix_lib) + "<body><article id=___body><!--START_BODY-->" + s + "<!--END_BODY--></article></body></html>";
// html = s;
// }
// browser.Reload();
// // browser.Document.Body.InnerHtml = html;
// //Debug.WriteLine(browser.Document.Body.InnerHtml)
// //string firebuglite_bookmark_run = "javascript:var firebug=document.createElement('script');firebug.setAttribute('src','http://localhost:56789/firebug-lite.1.2.js');document.body.appendChild(firebug);(function(){if(window.firebug.version){firebug.init();}else{setTimeout(arguments.callee);}})();void(firebug);";
// //browser.Navigate(firebuglite_bookmark_run);
//};
nav.Click += delegate
{
// use javascript to warn if url box is empty.
if (string.IsNullOrEmpty(urlbox.Text.Trim()))
{
browser.Load("javascript:alert('hey try typing a url!');");
}
browser.Load(urlbox.Text);
tabPage.Text = urlbox.Text;
};
newTab.Click += delegate { AddTab(); };
closeTab.Click += delegate
{
m_tabControl.Controls.Remove(tabPage);
browser.Dispose();
};
tabPage.Controls.Add(urlbox);
tabPage.Controls.Add(nav);
tabPage.Controls.Add(newTab);
tabPage.Controls.Add(closeTab);
tabPage.Controls.Add(browser);
}